CN211375246U

CN211375246U - Display device

Info

Publication number: CN211375246U
Application number: CN201922369892.3U
Authority: CN
Inventors: 郭东明
Original assignee: Shenzhen TCL New Technology Co Ltd
Current assignee: Shenzhen TCL New Technology Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-28
Anticipated expiration: 2029-12-25

Abstract

The utility model provides a display device, which comprises a back plate and a rear shell, wherein the back plate and the rear shell form an assembly space; the display device also comprises a heat dissipation assembly, and the heat dissipation assembly is arranged in the assembly space; the radiating assembly comprises a perturber arranged on the back plate, the perturber is provided with a swinging part, and the swinging part swings relative to the back plate. The application provides a display device, has solved display device among the prior art and has caused the not good technical problem of display effect because of can not effectively dispel the heat.

Description

Display device

Technical Field

The utility model relates to a show technical field, especially relate to a display device.

Background

Along with the development and the progress of technology, liquid crystal display's color is more bright-colored, fine and smooth, but liquid crystal display's glass penetration rate is lower, in order to satisfy the high bright demonstration requirement of high definition, need powerful LED (emitting diode) lamp plate as the backlight, cause the consumption of power strip, drive plate and multi-functional mainboard higher on the one hand, produce more heat, on the other hand the LED lamp plate constantly toasts diffuser plate, liquid crystal display, backplate, cause the backlight module, each part of liquid crystal display device is in abominable high temperature environment always.

In order to alleviate the high temperature environment that the backlight module caused because of the consumption, generally adopt the backplate to dispel the heat to the LED lamp plate, set up ventilation hole as much as possible on the backshell simultaneously, with mainboard in the backshell, the heat that drive plate and power strip produced distributes away through the air convection, but the hot-air of distributing away has further heated the backplate again, the LED lamp plate, cause the LED lamp plate just to the mainboard, the regional local hot spot that forms of drive plate and power strip, thereby make the diffuser plate soften easily, cause OD (lamp plate to the distance of diffuser plate, just also be the mixed light distance of LED lamp plate) value inhomogeneous, and then influence the homogeneity of luminance, and simultaneously, liquid crystal display is difficult to deflect because of being heated unevenly, produce local light leak, thereby cause the not good problem of display effect.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a display device aims at solving current display device and causes the not good technical problem of display effect because of can not effectively dispel the heat.

In order to achieve the above object, the present application provides a display device, which includes a back plate and a rear case, wherein the back plate and the rear case form an assembly space; the display device also comprises a heat dissipation assembly, and the heat dissipation assembly is arranged in the assembly space; the radiating assembly comprises a perturber arranged on the back plate, the perturber is provided with a swinging part, and the swinging part swings relative to the back plate.

Optionally, the heat dissipation assembly further includes an air deflector disposed in the assembly space, and a heat dissipation channel is formed between the air deflector and the protective shell.

Optionally, at least two air deflectors are arranged at intervals, one end of each air deflector is connected with the back plate, the other end of each air deflector is connected with the inner wall of the protective shell, the air deflectors are provided with vent holes, the protective shell is provided with heat dissipation holes, and the heat dissipation holes are communicated with the vent holes.

Optionally, the air deflector comprises a first side plate, a second side plate and a top plate, one side of the first side plate is connected with the back plate, the other side of the first side plate is connected with one end of the top plate, one side of the second side plate is connected with the other end of the top plate, the other side of the second side plate is connected with the inner wall of the protective shell, and the top plate is provided with a plurality of ventilation holes.

Optionally, the perturber comprises a base fixedly arranged on the back plate and a power supply, a driving part is arranged on one side of the base, one end of the driving part is hinged to the base, the other end of the driving part is connected to the swinging part, the power supply is electrically connected to the driving part, and the driving part drives the swinging part to swing.

Optionally, the driving portion is made of ceramic, the swinging portion is a blade, the blade is fixed to the ceramic through glue, the ceramic is piezoelectric ceramic, and the glue is conductive glue.

Optionally, the display device further comprises a driving assembly, and the driving assembly is arranged in the assembling space; the swing portion of the perturber is disposed between the driving assembly and the back plate.

Optionally, the driving assembly includes a main board and a power board disposed in the assembly space, and the air deflectors are disposed between the heat dissipation holes and the main board and between the heat dissipation holes and the power board, respectively.

Optionally, the driving assembly further includes a driving board disposed in the assembly space, and at least one spoiler is disposed in a gap between the main board and the back board, a gap between the driving board and the back board, and a gap between the power board and the back board, respectively.

Optionally, the protective shell includes a first connecting plate and a third connecting plate that are perpendicular to and fixed to the backplate, a second connecting plate is disposed between the first connecting plate and the third connecting plate, the second connecting plate includes at least two steps, wherein the first connecting plate is disposed on one side of the bottom of the step, the third connecting plate is disposed on one side of the top of the step, and the bottom of the step and the third connecting plate are respectively provided with the heat dissipation holes; the air deflector is arranged between the heat dissipation hole formed in the second connecting plate and the driving assembly; the base of the perturber is fixed between the driving assembly and the third connecting plate.

Compared with the prior art, the utility model provides an among the technical scheme, through the perturber that sets up, the flow of air has been accelerated, has improved heat exchange efficiency to avoided the local hot spot problem that produces because of the heat accumulation, can effectually dispel the heat to display device, eliminated display device's local hot spot district, make the temperature of backplate relatively more even, improved display device's display effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a display device according to an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of a display device according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic partial structural diagram of a display device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an air deflector in an embodiment of the display device of the present invention;

fig. 6 is a schematic structural diagram of an perturber in an embodiment of the display device of the present invention;

fig. 7 is a schematic structural diagram of a protective shell in an embodiment of a display device according to the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, technical solutions between the various embodiments of the present application may be combined with each other, but it must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should be considered to be absent and not within the protection scope of the present application.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a display device, which includes a back plate 1 and a protective shell 3, wherein the back plate 1 and the protective shell 3 form an assembly space. The display device also comprises a heat dissipation component which is arranged in the assembly space; the heat dissipation assembly comprises a perturber 7 arranged on the backboard 1, the perturber 7 is provided with a swinging part 703, and the swinging part 703 swings relative to the backboard for accelerating air circulation.

In the technical scheme adopted by the embodiment, the flow of air is accelerated through the disturber 7, and the heat exchange efficiency is improved, so that the problem of local hot spots caused by heat accumulation is solved, the display device can be effectively cooled, the local hot spot area of the display device is eliminated, the temperature of the back plate 1 is relatively uniform, the display effect of the display device is improved, and the service life of the display device is prolonged.

Further, referring to fig. 2, 3, and 4, the heat dissipation assembly further includes an air guide plate 6, the air guide plate 6 is disposed in the assembly space, and a heat dissipation channel is formed between the air guide plate 6 and the protective shell 3.

In the technical scheme adopted by the embodiment, the power consumption heat is shunted by the air deflector 6, and air convection is carried out between the heat dissipation channel and the outside, so that the heat dissipation effect is further improved.

Further, referring to fig. 2, 3 and 4, at least two air deflectors 6 are arranged at intervals, one end of each air deflector 6 is connected with the back plate 1, the other end of each air deflector is connected with the inner wall of the protective shell 3, the air deflectors 6 are provided with vent holes 8, the protective shell 3 is provided with heat dissipation holes 9, and the heat dissipation holes 9 are communicated with the vent holes 8.

In the technical scheme adopted in this embodiment, the power consumption heat of the display device is divided by the air deflector 6, a part of the heat carries out air convection with the outside through the vent hole 8 arranged on the air deflector 6 and the heat dissipation hole 9 arranged on the protective shell 3, a part of the heat flows to the gap between the two air deflectors 6 along the air deflector 6 and carries out air convection with the outside through the heat dissipation hole 9 arranged on the protective shell 3, and the heat dissipation effect is further improved.

Specifically, one side face of the back plate 1 is provided with the air guide plates 6, the air guide plates 6 are arranged in the protective shell 3, preferably, the number of the air guide plates 6 is two, the two air guide plates 6 are arranged in a straight line shape, a preset interval is arranged between the two air guide plates 6, so that air convection is facilitated, and in practical application, the interval length between the two air guide plates 6 can be freely selected according to specific conditions. One end of the air deflector 6 is fixed on the back plate 1, and the other end is fixed on the inner wall of the protective shell 3, so that the air deflector 6 is fixed. Meanwhile, in order not to influence the convection of air, the air deflector 6 is provided with a vent hole 8, and the vent hole 8 is communicated with a heat dissipation hole 9, so that the air convection is realized. The ventilation holes 8 and the heat dissipation holes 9 can be circular holes or rhombic holes, specific shapes are not limited, and strip-shaped holes are preferred in the embodiment.

Further, referring to fig. 5, the air deflector 6 includes a first side plate 601, a second side plate 602, and a top plate 603, one side of the first side plate 601 is connected to the back plate 1, the other side is connected to one end of the top plate 603, one side of the second side plate 602 is connected to the other end of the top plate 603, the other side is connected to the inner wall of the protective casing 3, and the top plate 603 is provided with a vent hole 8.

In the technical scheme adopted in this embodiment, the air deflector 6 is of a non-closed inverted U-shaped structure with an opening surrounded by the first side plate 601, the second side plate 602 and the top plate 603, the first side plate 601, the second side plate 602 and the top plate 603 are fixed in an adhesion manner, and the side of the first side plate 601, which is away from the top plate 603, is abutted against the backboard 1 for fixing with the backboard 1; the side of the second side plate 602 facing away from the top plate 603 abuts against the inner wall of the protective shell 3, so as to fix the protective shell 3; the top plate 603 is used to connect the first side plate 601 and the second side plate 602, so that the first side plate 601, the second side plate 602 and the top plate 603 form a whole. In order to facilitate the convection of air, a vent hole 8 is provided through the top plate 603, and the vent hole 8 communicates with the heat radiation hole 9.

Further, referring to fig. 5, the surface area of the first side plate 601 is larger than that of the second side plate 602, and a plurality of vent holes 8 are arranged in an array along the top plate 603.

In the technical scheme adopted in this embodiment, in order to save the manufacturing material, also set the surface area of first curb plate 601 to be greater than the surface area of second curb plate 602 for being favorable to the convection current of air more simultaneously, the area of contact of first curb plate 601 and backplate 1 is big, can guarantee fixed firm nature, second curb plate 602 can satisfy fixed effect as long as there is the contact with the inner wall of protecting crust 3, and simultaneously, the area of contact of second curb plate 602 and protecting crust 3 inner wall is little, can save material, reduce the cost of manufacture, and can also prevent to cover part louvre 9 because of great area of contact, thereby avoid influencing air convection.

For better carrying out the air convection, ventilation hole 8 is provided with a plurality ofly, and a plurality of ventilation holes 8 are arranged along the even array of roof 603, under the prerequisite of guaranteeing the air convection effect for holistic structure is pleasing to the eye relatively.

Further, referring to fig. 6, the perturber 7 includes a base 701 fixed on the backplate 1 and a power supply (not shown), one side of the base 701 is provided with a driving portion 702, one end of the driving portion 702 is hinged to the base 701, the other end is connected to the swinging portion 703, the power supply (not shown) is electrically connected to the driving portion 702, and the power supply (not shown) drives the driving portion 702 to swing along the backplate 1.

In the technical solution adopted in this embodiment, the perturber 7 includes a base 701, a driving portion 702, a swinging portion 703 and a power supply (not shown), the base 701 is fixed on the backplate 1, it can be understood that the base 701 is a fixed end of the perturber 7, the driving portion 702 and the swinging portion 703 are free ends of the perturber 7, one side surface of the base 701 is hinged with the driving portion 702, the driving portion 702 swings with respect to the base 701, the driving portion 702 is fixedly connected with the swinging portion 703, the swinging portion 703 and the driving portion 702 move synchronously, and the swinging portion 703 swings along the backplate to accelerate air flow. In actual use, a square wave voltage with a preset frequency is provided to the driving portion 702 through a power supply (not shown), and the driving portion 702 swings regularly under the driving of the square wave voltage. Preferably, the driving portion 702 and the swinging portion 703 have a sheet-like structure with a certain thickness.

Further, the driving portion 702 is made of ceramic, the ceramic is piezoelectric ceramic, the swinging portion 703 is a blade, and the blade and the ceramic are fixed by glue, which may be conductive adhesive.

In the technical scheme adopted by the embodiment, ceramic, especially piezoelectric ceramic, can well regularly swing under the driving of square wave voltage with preset frequency, and further drives the blades fixedly connected through conductive adhesive or other glue to synchronously swing.

Further, referring to fig. 2, the backlight module further includes a driving component 4, the driving component 4 is disposed in the assembly space, the driving component 4 is suspended on one side of the backplate 1 facing the protective shell 3, and the free end of the swing portion 703 extends into a gap between the driving component 4 and the backplate 1 and swings along the backplate 1.

In the technical solution adopted in this embodiment, in order to eliminate the local hot spot area of the driving component 4, the free end of the swinging portion 703 is extended into the gap between the driving component 4 and the back plate 1 and swings along the back plate 1, so that the air flow between the driving component 4 and the back plate 1 can be accelerated, and the heat dissipation is effective. In other embodiments, both the driving portion 702 and the swinging portion 703 extend into the gap between the driving component 4 and the backplate 1, or the driving portion 702 may extend into the gap between the driving component 4 and the backplate 1, as long as at least one of them is ensured to extend into the gap between the driving component 4 and the backplate 1.

Specifically, display device includes backplate 1 and display screen to and set up lamp plate 2 at 1 side of backplate, and lamp plate 2 can adopt the LED lamp plate, and lamp plate 2 can adopt the double faced adhesive tape to fix on backplate 1, and lamp plate 2's light emitting area sets up diffuser plate 5 towards the display screen between lamp plate 2 and the display screen, and the light that lamp plate 2 sent provides stable light source for the display screen behind diffuser plate 5. The side of the backplate 1 facing away from the diffuser plate 5 is provided with a driving assembly 4 and a protective shell 3, it should be noted that when the driving assembly 4 is fixed to the backplate 1, the driving assembly 4 is not in direct contact with the backplate 1, that is, a gap is left between the driving assembly 4 and the backplate 1, and it can be understood that the driving assembly 4 is suspended in the backplate 1. Drive assembly 4 is connected with 2 electricity of lamp plate for control lamp plate 2 shines out light, protecting crust 3 covers drive assembly 4, be used for protecting drive assembly 4, prevent that drive assembly 4 from breaking by accident, it can be understood that, protecting crust 3 covers drive assembly 4 in the inside of protecting crust 3, in order to dispel the heat to drive assembly 4 in the protecting crust 3, be provided with a plurality of louvres 9 on protecting crust 3, can carry out the air convection with the external world, realize the cooling.

Further, referring to fig. 2 and 4, the driving assembly 4 includes a main board 401, a driving board 402 and a power board 403 disposed in the assembly space, the power board 403 is electrically connected to the main board 401 and the driving board 402, the driving board 402 is electrically connected to the lamp panel 2, air deflectors 6 are disposed between the heat dissipation holes 9 and the main board 401 and between the heat dissipation holes 403 and the power board 401, and at least one spoiler 7 is disposed in a gap between the main board 401 and the backplane 1, a gap between the driving board 402 and the backplane 1, and a gap between the power board 403 and the backplane 1.

In the technical solution adopted in this embodiment, the power board 403 provides a stable power supply for the driver board 402 and the motherboard 401, and the driver board 402 and the motherboard 401 are used to control the lamp panel 2. Preferably, from the perspective of facing the drawing, the first air deflector 6 is disposed above the power board 403, the second air deflector 6 is disposed above the main board 401, and the driving board 402 is disposed below the interval between the two air deflectors 6, so that the power consumption heat flows above the driving board 402 along the air deflectors 6, and then carries out air convection with the outside through the heat dissipation holes 9.

Because the mainboard 401, the driving board 402 and the power board 403 all generate power consumption heat when working, in order to accelerate air flow and dissipate heat in time, at least one disturber 7 is respectively arranged in the gap between the mainboard 401 and the backboard 1, the gap between the driving board 402 and the backboard 1 and the gap between the power board 403 and the backboard 1, so that the temperature of the whole area of the driving assembly 4 can be effectively reduced, and a local hot spot area can be eliminated. In addition, the driving plate 402 consumes a large amount of power and generates a large amount of heat, and the hot air flowing through the air guide plate 6 is also accumulated above the driving plate 402, and at least two dampers 7 are provided in the gap between the driving plate 402 and the back plate 1 in order to further secure the effect of accelerating the air flow.

Further, referring to fig. 2, 3, and 7, the protective shell 3 includes a first connecting plate 301 and a third connecting plate 303 that are perpendicular and fixed to the backplate 1, a second connecting plate 302 is disposed between the first connecting plate 301 and the third connecting plate 303, the second connecting plate 302 includes at least two steps, wherein the first connecting plate 301 is disposed on one side of the bottom of the step, the third connecting plate 303 is disposed on one side of the top of the step, and the bottom of the step and the third connecting plate 303 are respectively provided with heat dissipation holes 9. The air deflector 6 is arranged between the heat dissipation hole 9 formed in the second connecting plate 302 and the driving assembly 4; the base 701 of the perturber 7 is fixed between said driving member 4 and the third connection plate 303.

In the technical solution adopted in this embodiment, the protective shell 3 is a structure formed by connecting a first connecting plate 301, a third connecting plate 303, and a second connecting plate 302, the first connecting plate 301, the third connecting plate 303, and the second connecting plate 302 are bonded or integrally formed, wherein, the first connecting plate 301 and the third connecting plate 303 are perpendicular to the backboard 1, the second connecting plate 303 is parallel to the backboard 1 and is used for connecting the first connecting plate 301 and the third connecting plate 303, the second connecting plate 302 at least comprises two steps, the lower step is covered with the driving component 4, the air deflector 6 and the perturber 7, one end of the bottom step of the second connecting plate 302 far away from the top step, the third connecting plate 303 are respectively provided with a heat dissipation hole 9, make the air flow in the protecting crust 3 be perpendicular 90 degrees structure, avoid the hot-air directly to heat the touchable district of backplate 1 through first connecting plate 301 to scald the staff has been prevented.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.

Claims

1. A display device comprises a back plate and a protective shell, wherein the back plate and the protective shell form an assembly space; the display device is characterized by further comprising a heat dissipation assembly, wherein the heat dissipation assembly is arranged in the assembling space; the radiating assembly comprises a perturber arranged on the back plate, the perturber is provided with a swinging part, and the swinging part swings relative to the back plate.

2. The display device according to claim 1, wherein the heat dissipation assembly further comprises a wind deflector disposed in the assembly space, and a heat dissipation channel is formed between the wind deflector and the protective case.

3. The display device according to claim 2, wherein the air deflector is disposed at least two spaced apart positions, one end of the air deflector is connected to the back plate, the other end of the air deflector is connected to an inner wall of the protective housing, the air deflector is provided with a vent hole, the protective housing is provided with a heat dissipation hole, and the heat dissipation hole is communicated with the vent hole.

4. The display device according to claim 3, wherein the air deflector comprises a first side plate, a second side plate and a top plate, one side of the first side plate is connected with the back plate, the other side of the first side plate is connected with one end of the top plate, one side of the second side plate is connected with the other end of the top plate, the other side of the second side plate is connected with the inner wall of the protective shell, and the top plate is provided with a plurality of the vent holes.

5. The display device as claimed in claim 4, wherein the perturber comprises a base fixed on the back plate and a power supply, a driving portion is disposed on one side of the base, one end of the driving portion is hinged to the base, the other end of the driving portion is connected to the swinging portion, the power supply is electrically connected to the driving portion, and the driving portion drives the swinging portion to swing.

6. The display device according to claim 5, wherein the driving portion is made of ceramic, the swinging portion is a blade, the blade is fixed to the ceramic by glue, the ceramic is piezoelectric ceramic, and the glue is conductive glue.

7. The display device according to claim 6, further comprising a driving assembly provided in the assembly space; the swing portion of the perturber is disposed between the driving assembly and the back plate.

8. The display device according to claim 7, wherein the driving assembly comprises a main board and a power board disposed in the assembly space, and the air guiding plate is disposed between the heat dissipation hole and the main board and between the heat dissipation hole and the power board.

9. The display device according to claim 8, wherein the driving assembly further comprises a driving board disposed in the assembly space, and at least one of the scramblers is disposed in a gap between the main board and the rear board, a gap between the driving board and the rear board, and a gap between the power board and the rear board, respectively.

10. The display device according to claim 9, wherein the protective housing comprises a first connecting plate and a third connecting plate perpendicular to and fixed to the back plate, a second connecting plate is disposed between the first connecting plate and the third connecting plate, the second connecting plate comprises at least two steps, wherein the first connecting plate is disposed on one side of the bottom of the step, the third connecting plate is disposed on one side of the top of the step, and the heat dissipation holes are disposed on the bottom of the step and the third connecting plate, respectively; the air deflector is arranged between the heat dissipation hole formed in the second connecting plate and the driving assembly; the base of the perturber is fixed between the driving assembly and the third connecting plate.