CN220155095U

CN220155095U - MiniLED backlight module

Info

Publication number: CN220155095U
Application number: CN202321942073.3U
Authority: CN
Inventors: 薛卫
Original assignee: Wuxi Wuzhou Photoelectric Technology Co ltd
Current assignee: Wuxi Wuzhou Photoelectric Technology Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-08
Anticipated expiration: 2033-07-24

Abstract

The utility model discloses a miniLED backlight module, which relates to the field of backlight modules and comprises a lower shell, wherein an upper shell is arranged at the upper end of the lower shell, miniLED backlight lamp panels are jointly arranged between the lower shell and the upper shell, two fixing holes distributed left and right are formed in the middle of the upper end of the lower shell, fixing columns are arranged in the fixing holes, clamping grooves are formed in one sides, far away from each other, of the two fixing columns, rectangular through grooves are formed in one sides, far away from each other, of the two rectangular through grooves, rectangular grooves are formed in the two rectangular through grooves, trapezoid blocks are arranged in the two rectangular through grooves, stop blocks are fixedly sleeved on the outer surfaces of the trapezoid blocks, and springs are arranged on one sides, far away from each other, of the two stop blocks. According to the utility model, the trapezoid blocks, the fixing columns, the springs, the stop blocks and the handles are matched together, so that the miniLED backlight module can be quickly disassembled without using tools, and the operation is simple.

Description

MiniLED backlight module

Technical Field

The utility model relates to the technical field of backlight modules, in particular to a miniLED backlight module.

Background

With the requirements of ultra-thin televisions and high definition, the MiniLED technology is gradually used in high-end backlight products, and the MiniLED backlight technology with partition control can realize the functional advantages of high dynamic contrast, energy conservation, high color gamut, ultra-thin televisions and the like.

The existing MiniLED backlight plate generally uses a shell to protect the periphery of the backlight plate, collision is avoided, the backlight plate is generally fixed by using screws, and when maintenance is needed, tools are needed to be used for disassembly, so that the operation is complicated.

The prior art (publication number: CN 213983039U) discloses a small-spacing LED backlight module structure, which comprises a bottom plate and a backlight plate arranged on the bottom plate, wherein the bottom plate is a rectangular flat plate, the plate body of the bottom plate is fixedly arranged in a rear shell of equipment through a fixed structure, screw holes are formed in the upper surface of the bottom plate, limit columns are integrally formed on the upper surface of the bottom plate, the limit columns are uniformly arranged on the upper surface of the bottom plate at equal intervals for one circle, the backlight plate is limited on the bottom plate through the limit columns, positioning screws are fixedly arranged in the screw holes in the upper surface of the bottom plate, the backlight plate is positioned through the positioning screws, an air cavity is formed in the plate body of the bottom plate, the upper surface of the bottom plate is provided with a first air hole, the first air hole is communicated with the air cavity, one side of the air cavity is connected with an air exhaust pipeline, an air valve is arranged on the pipe body of the air exhaust pipeline, and the tail end of the air exhaust pipeline is fixedly connected with an air pipe connecting piece;

above-mentioned patent is let the set screw fix a position the time to the backlight plate, can effectively avoid it to cause the damage to the backlight plate mainboard, but has following drawback, and when miniLED backlight unit damaged, need use the instrument to dismantle a plurality of set screws, and the process of dismantling is comparatively loaded down with trivial details, influences work efficiency, needs further improvement, and we propose a miniLED backlight unit for this reason.

Disclosure of Invention

The utility model mainly aims to provide a miniLED backlight module which can effectively solve the problems in the background technology.

The technical scheme adopted by the utility model is as follows:

the utility model provides a miniLED backlight unit, includes the shell, the upper end of shell is provided with the shell down, be provided with miniLED backlight unit jointly between shell and the upper shell down, two fixed orifices that distribute about having been seted up at the upper end middle part of shell down, be provided with the fixed column in the fixed orifices, two the draw-in groove has been seted up to one side that the fixed column kept away from each other, two rectangular through groove has all been seted up to one side that the fixed orifices kept away from each other, two rectangular through inslot all begins to have rectangular groove, two rectangular through inslot all is provided with trapezoidal piece, the fixed dog that has cup jointed of surface of trapezoidal piece, two one side that the dog kept away from each other all is provided with the spring, the spring activity cup joints on trapezoidal piece.

Preferably, the lower inner wall of the lower shell is provided with a heat conducting fin, the heat conducting fin extends to the lower end of the lower shell, the lower end of the heat conducting fin is provided with a heat radiating fin, the left end of the heat radiating fin is provided with a plurality of heat radiating through holes, and the outer surface of the heat radiating fin is provided with an infrared radiation heat radiating coating.

Preferably, the stop block and the spring are both positioned in the rectangular groove, and the trapezoid block extends into the clamping groove.

Preferably, the upper end of the heat conducting fin is movably contacted with the lower end of the miniLED backlight lamp panel.

Preferably, the trapezoid blocks are matched with the fixing columns, and handles are arranged at the ends, away from each other, of the trapezoid blocks.

Preferably, the four corners of the upper end of the lower shell are provided with positioning holes, positioning columns are arranged in the positioning holes, the positioning columns are arranged at the lower end of the upper shell, and the fixing columns are arranged at the lower end of the upper shell.

Compared with the prior art, the utility model has the following beneficial effects:

1. the mini LED backlight module can be quickly disassembled by being matched with the trapezoid blocks, the fixing columns, the springs, the check blocks and the handles, when maintenance is needed, the handles on two sides are pulled, the handles drive the trapezoid blocks to move outwards, so that the trapezoid blocks are far away from the inside of the fixing columns, the upper shell and the lower shell can be separated, the mini LED backlight lamp panel is taken out for maintenance, tools are not needed for disassembly, the operation is simple, and the working efficiency is improved;

2. through setting up the heat when fin and the common cooperation of conducting strip can reduce miniLED backlight plate operation, during the use, the conducting strip dispels the heat for the fin with the heat transfer that miniLED backlight plate produced, the setting of heat dissipation through-hole can make the inside that the air can flow the fin, increase and the area of contact of air, take away inside heat, accelerate heat dissipation, the rethread sets up infrared radiation heat dissipation coating can increase fin radiating area and conductivity, show promotion heat exchange's effect, distribute the heat of heat-generating body to all around fast, in order to reach the effect of cooling, the normal operating of miniLED backlight plate has been guaranteed.

Drawings

Fig. 1 is a schematic view of the entire structure proposed in the present embodiment;

FIG. 2 is a schematic diagram of an explosion structure in the present embodiment;

FIG. 3 is a schematic view of a partial cross-sectional structure of the lower housing in the present embodiment;

fig. 4 is an enlarged schematic view of the structure of a in the present embodiment.

In the figure: 1. a lower housing; 2. an upper housing; 3. miniLED backlight lamp panel; 4. a trapezoid block; 5. a heat sink; 6. a heat dissipation through hole; 7. an infrared radiation heat dissipation coating; 8. positioning holes; 9. a fixing hole; 10. positioning columns; 11. a stop block; 12. a spring; 13. a handle; 14. fixing the column; 15. a clamping groove; 16. rectangular grooves; 17. rectangular through grooves; 18. and a heat conductive sheet.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships 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 devices or elements referred to must have a specific direction, be configured and operated in the specific direction, 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," "provided," "connected," and the like are to be construed broadly, and may be 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.

As shown in fig. 1-4, a miniLED backlight module comprises a lower shell 1, the upper end of the lower shell 1 is provided with an upper shell 2, a miniLED backlight lamp panel 3 is jointly arranged between the lower shell 1 and the upper shell 2, the lower shell 1, the upper shell 2 and the miniLED backlight lamp panel 3 jointly form the miniLED backlight module, the lower shell 1 and the upper shell 2 are used for protecting the outer side of the miniLED backlight lamp panel 3, two left and right distributed fixing holes 9 are formed in the middle of the upper end of the lower shell 1, fixing columns 14 are arranged in the fixing holes 9, clamping grooves 15 are formed in one sides, far away from each other, of the two fixing columns 14, rectangular through grooves 17 are formed in one sides, far away from each other, of the two fixing holes 9, rectangular through grooves 16 are formed in one side, a trapezoidal block 4 is arranged in the two rectangular through grooves 17, a stop 11 is fixedly sleeved on the outer surface of the trapezoidal block 4, springs 12 are respectively arranged on one sides, far away from each other, the springs 12 are movably sleeved on the trapezoidal block 4, and the trapezoidal block 4, the springs 14, 12 and the springs 11 and the two stop blocks 13 are matched with the two stop blocks to be used for disassembling the miniLED backlight module fast.

The lower inner wall of lower shell 1 is provided with conducting strip 18, and conducting strip 18 extends to the lower extreme of lower shell 1, and the lower extreme of conducting strip 18 is provided with fin 5, and fin 5 is made for aluminium system, and a plurality of heat dissipation through-hole 6 has been seted up to fin 5's left end, and fin 5's surface is provided with infrared radiation heat dissipation coating 7, and infrared radiation heat dissipation coating 7 has higher thermal radiation and thermal infrared emittance, and fin 5 and conducting strip 18 cooperate together and are used for reducing the heat when miniLED backlight plate 3 operates.

The stop block 11 and the spring 12 are both positioned in the rectangular groove 16, the spring 12 is in a micro-compressed state, and the trapezoid block 4 extends into the clamping groove 15.

The upper end of the heat conducting fin 18 is movably contacted with the lower end of the miniLED backlight lamp panel 3, the heat conducting fin 18 is heat conducting graphite, and the heat conducting fin 18 is used for conducting heat.

The trapezoidal piece 4 and fixed column 14 assorted, the one end that two trapezoidal pieces 4 kept away from each other all is provided with handle 13, and handle 13 is used for conveniently pulling trapezoidal piece 4, and the lower extreme of fixed column 14 is the hemisphere, and the hemisphere sets up the hypotenuse that conveniently extrudees trapezoidal piece 4.

In order to position the lower shell 1 and the upper shell 2 when being connected, four corners of the upper end of the lower shell 1 are provided with positioning holes 8, positioning columns 10 are arranged in the positioning holes 8, the positioning columns 10 are arranged at the lower end of the upper shell 2, and fixing columns 14 are arranged at the lower end of the upper shell 2.

According to the miniLED backlight module, when the miniLED backlight module is used, heat generated by the miniLED backlight lamp panel 3 is transferred to the radiating fins 5 for radiating, the radiating through holes 6 are arranged to enable air to flow into the radiating fins 5, the infrared radiation radiating coating 7 can increase the radiating area and the conductivity of the radiating fins 5, when maintenance is needed, the handles 13 on two sides are pulled, the handles 13 drive the trapezoidal blocks 4 to move outwards, so that the trapezoidal blocks are far away from the clamping grooves 15 in the fixing columns 14, then the upper shell 2 and the lower shell 1 are separated, the miniLED backlight lamp panel 3 is taken out for maintenance, when the miniLED backlight lamp panel 3 is installed, the miniLED backlight lamp panel 3 is placed in the lower shell 1, the positioning columns 10 are inserted into the positioning holes 8, the fixing columns 14 are inserted into the fixing holes 9, the trapezoidal blocks 4 are extruded to be far away from the fixing holes 9, the springs 12 are compressed, and when the fixing columns 14 are completely inserted into the fixing holes 9, one ends of the trapezoidal blocks 4 are inserted into the clamping grooves 15 by the elasticity of the springs 12, and then the installation can be completed.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a miniLED backlight unit, includes shell (1), its characterized in that: the upper end of shell (1) is provided with shell (2) down, be provided with miniLED backlight plate (3) between shell (1) and the last shell (2) down jointly, fixed orifices (9) that distribute about the upper end middle part of shell (1) down have been seted up, be provided with fixed column (14) in fixed orifices (9), two draw-in groove (15) have been seted up to one side that fixed column (14) kept away from each other, two rectangle logical groove (17) have all been seted up to one side that fixed orifices (9) kept away from each other, two all start rectangular channel (16) in rectangle logical groove (17), two all be provided with trapezoidal piece (4) in rectangle logical groove (17), the fixed dog (11) have been cup jointed to the surface mounting of trapezoidal piece (4), two one side that dog (11) kept away from each other all is provided with spring (12), the activity of spring (12) cup joints on trapezoidal piece (4).

2. The miniLED backlight module according to claim 1, wherein: the heat-conducting strip (18) is arranged on the lower inner wall of the lower shell (1), the heat-conducting strip (18) extends to the lower end of the lower shell (1), the heat-radiating fin (5) is arranged at the lower end of the heat-conducting strip (18), a plurality of heat-radiating through holes (6) are formed in the left end of the heat-radiating fin (5), and an infrared radiation heat-radiating coating (7) is arranged on the outer surface of the heat-radiating fin (5).

3. The miniLED backlight module according to claim 2, wherein: the stop block (11) and the spring (12) are both positioned in the rectangular groove (16), and the trapezoid block (4) extends into the clamping groove (15).

4. A miniLED backlight module according to claim 3, wherein: the upper end of the heat conducting fin (18) is movably contacted with the lower end of the miniLED backlight lamp panel (3).

5. The miniLED backlight module according to claim 4, wherein: the trapezoid blocks (4) are matched with the fixing columns (14), and handles (13) are arranged at the ends, away from each other, of the trapezoid blocks (4).

6. The miniLED backlight module according to claim 5, wherein: positioning holes (8) are formed in four corners of the upper end of the lower shell (1), positioning columns (10) are arranged in the positioning holes (8), the positioning columns (10) are arranged at the lower end of the upper shell (2), and the fixing columns (14) are arranged at the lower end of the upper shell (2).