CN220474289U

CN220474289U - Ultra-thin backlight module

Info

Publication number: CN220474289U
Application number: CN202322181128.XU
Authority: CN
Inventors: 彭迪生; 董文海
Original assignee: Suzhou Pengfu Photoelectric Technology Co ltd
Current assignee: Suzhou Pengfu Photoelectric Technology Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-02-09
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses an ultrathin backlight module, and relates to the technical field of automobile accessories. The ultrathin backlight module comprises a rear shell, wherein the surface of the rear shell is provided with slots, the surface of the rear shell is provided with mounting holes at equal intervals, the inside of each mounting hole is inserted with a bump, and the surface of the rear shell, which is far away from the bump, is fixedly provided with a circuit board. According to the utility model, the square LED lamp beads are arranged to emit light laterally, when the square LED lamp beads emit light, the light is transversely irradiated in the light guide plate, so that the uniformity of the light is improved, the light can adapt to longer distance, the practicability is enhanced, the limit posts and the locating posts are arranged, the line plate, the partition plate and the light guide plate can be located, the stability is enhanced, and the backlight module emits light through the side surfaces and extends into the first light guide hole and the second light guide hole, so that the whole backlight module is thinner than the traditional backlight module and has better aesthetic property.

Description

Ultra-thin backlight module

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to an ultrathin backlight module.

Background

With the development of LED chip technology, the lighting technology of automobiles is revolutionarily changed, and more automobile interior lights and exterior lights use LEDs as light sources. The LED is used as a light source, and the LED light-emitting chip is smaller, the light-emitting angle is controllable, and when an optical system is added, the light-emitting angle is easier to design and control. And the LED is used as a green light source, so that the service life is long, the energy consumption is low, the efficiency is high, and the use of electric energy is reduced. The LED response speed is high, the lighting of the LED only needs microsecond level, and along with the improvement of the automobile lighting technology, particularly along with the wide application of a new light source LED, the automobile Logo lamp is gradually popularized and applied to various automobile types. As the brightness and uniformity requirements of the Logo lamp are higher and higher, the light energy utilization rate is improved, so that the design key of the Logo lamp is that at present, some vehicle types use indirect Logo lamp light design, but the light energy utilization rate is low and the brightness is dark; some vehicle types use direct Logo light design, but the optical system design is unreasonable, and is uneven, because the LED light emitting angle is 120 degrees generally, but the light energy is mainly concentrated in 60 degrees, so that the light spot can appear when the LED light is directly irradiated to the Logo, and therefore the edge of the Logo light can be darker, and the middle of the Logo is bright and the edge is dark, so that the automobile LOGO is short in light emitting distance and uneven in light emitting.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an ultrathin backlight module, and solves the problems of short light-emitting distance and uneven light-emitting of a Logo lamp.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an ultra-thin backlight unit, includes the backshell, the slot has been seted up on the surface of backshell, the mounting hole has been seted up to the surface equidistance of backshell, the inside grafting of mounting hole has the lug, the surface fixed mounting that the lug was kept away from to the backshell has the circuit board, the output of circuit board is pegged graft in the inside of slot, the surface equidistance fixed mounting of circuit board has square LED lamp pearl, the laminating of surface of circuit board has the baffle, the laminating of surface of baffle has the light guide plate, two first light guide holes have all been seted up on the surface of baffle and light guide plate, the second light guide hole has all been seted up to the equal distance of surface of baffle and light guide plate, the fixed surface joint of backshell has the preceding shell, the surface fixed mounting that the backshell was kept away from to the preceding shell has the light-transmitting plate, the surface center department fixedly connected with spacing post of backshell, the equal fixedly connected with in inside center department and spacing post assorted jack of circuit board, the surface fixed connection of back shell has the reference column, the equal distance between circuit board, baffle and light guide plate have the surface of light guide plate and the light guide plate and second light guide plate at the inside of the same location post.

Preferably, the square LED lamp beads are lateral light sources, and the light source surfaces of the square LED lamp beads are opposite to the inner walls of the first light guide holes and the second light guide holes.

Preferably, the bump is a rubber block, and the number of the mounting holes and the number of the bumps are three.

Preferably, the shapes of the circuit board and the partition board are matched, and the thickness of the partition board is larger than that of the circuit board.

Preferably, the partition board and the light-transmitting board are acrylic boards.

Preferably, the diameters of the rear shell and the front shell are larger than those of the circuit board, the partition board and the light guide plate.

Advantageous effects

The utility model provides an ultrathin backlight module. Compared with the prior art, the method has the following beneficial effects:

1. this ultra-thin type backlight unit through setting up square LED lamp pearl into the luminous mode of side, can transversely shine the light in the inside of light guide plate when square LED lamp pearl is luminous, has improved the homogeneity of light, can adapt to longer distance simultaneously, has strengthened the practicality.

2. This ultra-thin type backlight unit through setting up spacing post and reference column, can fix a position circuit board, baffle and light guide plate, has strengthened stability, and this backlight unit is luminous through the side and extend to the inside mode of first leaded light hole and second leaded light hole for whole backlight unit is thinner than the tradition, and the aesthetic property is better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of the rear shell structure of the present utility model;

FIG. 4 is a schematic view of a rear housing and a light guide plate structure according to the present utility model;

fig. 5 is a schematic structural diagram of a square LED lamp bead according to the present utility model.

In the figure: 1. a rear case; 2. a slot; 3. a mounting hole; 4. a bump; 5. a circuit board; 6. a partition plate; 7. a light guide plate; 8. a front shell; 9. a light-transmitting plate; 101. a limit column; 102. positioning columns; 51. square LED lamp beads; 71. a first light guide hole; 72. and a second light guide hole.

Description of the embodiments

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.

Referring to fig. 1-5, the present utility model provides a technical solution: the ultra-thin backlight module comprises a rear shell 1, a slot 2 is arranged on the surface of the rear shell 1, mounting holes 3 are formed in the surface of the rear shell 1 at equal intervals, protruding blocks 4 are inserted into the mounting holes 3, each protruding block 4 is a rubber block, the number of the mounting holes 3 and the number of the protruding blocks 4 are three, a circuit board 5 is fixedly arranged on the surface of the rear shell 1, which is far away from the protruding blocks 4, an output end of the circuit board 5 is inserted into the slot 2, square LED lamp beads 51 are fixedly arranged on the surface of the circuit board 5 at equal intervals, a partition board 6 is attached to the surface of the circuit board 5, the shape of the circuit board 5 is matched with the shape of the partition board 6, the thickness of the partition board 6 is larger than that of the circuit board 5, a light guide plate 7 is attached to the surface of the partition board 6, two first light guide holes 71 are formed in the surfaces of the partition board 6 and the light guide plate 7, a second light guide hole 72 is uniformly formed in the surface of the partition board 6 and the light guide plate 7 at equal intervals, the square LED lamp beads 51 are lateral light sources, the light source surface of the square LED lamp beads 51 is opposite to the inner walls of the first light guide hole 71 and the second light guide hole 72, the front shell 8 is fixedly clamped on the outer surface of the rear shell 1, the diameters of the rear shell 1 and the front shell 8 are larger than those of the circuit board 5, the partition board 6 and the light guide plate 7, the light-transmitting plate 9 is fixedly arranged on the surface of the front shell 8, which is far away from the rear shell 1, the partition board 6 and the light-transmitting plate 9 are acrylic plates, and the square LED lamp beads 51 are arranged to be side-emitting, so that light can be transversely irradiated inside the light guide plate 7 when the square LED lamp beads 51 emit light, the uniformity of the light is improved, longer distance can be adapted, the practicability is enhanced, and the backlight module emits light through the side surface and extends to the inside of the first light guide hole 71 and the second light guide hole 72, so that the whole backlight module is thinner than the traditional backlight module and has better aesthetic property;

the surface center department fixedly connected with spacing post 101 of backshell 1, circuit board 5, baffle 6 and the inside center department of light guide plate 7 equal fixedly connected with spacing post 101 assorted jack, the equidistant fixedly connected with reference column 102 of surface of backshell 1, circuit board 5, baffle 6 and the equidistant locating hole of having seted up with reference column 102 assorted of surface of light guide plate 7, the inside at the jack is pegged graft to the surface of spacing post 101, the surface of reference column 102 is pegged graft in the inside of locating hole, through setting up spacing post 101 and reference column 102, can fix a position circuit board 5, baffle 6 and light guide plate 7, stability has been strengthened.

When the LED backlight module is assembled, the circuit board 5, the partition board 6 and the light guide plate 7 are placed on the surface of the rear shell 1, the limiting columns 101 and the positioning columns 102 penetrate through holes in the circuit board 5, the partition board 6 and the light guide plate 7, the front shell 8 and the rear shell 1 are finally fixed, the limiting columns 101 and the positioning columns 102 are arranged, the circuit board 5, the partition board 6 and the light guide plate 7 can be positioned, stability is enhanced, the backlight module emits light through the side surfaces and extends to the inside of the first light guide hole 71 and the inside of the second light guide hole 72, the whole backlight module is thinner than the traditional backlight module, attractive appearance is better, after the square LED lamp beads 51 are started, the side surfaces of the square LED lamp beads 51 emit light, the square LED lamp beads 51 transversely irradiate the inside of the light guide plate 7 when the square LED lamp beads emit light, uniformity of light is improved, and meanwhile, the backlight module can adapt to longer distances and enhance practicability.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. Ultra-thin type backlight unit, including backshell (1), its characterized in that: the utility model discloses a light-transmitting post, including rear shell (1), mounting hole (3), circuit board (5), front shell (8), baffle (6) and light-guiding plate (7) are all offered on the surface equidistance of rear shell (1), mounting hole (3) have been offered to the surface equidistance of rear shell (1), bump (4) are kept away from to rear shell (1) surface fixed mounting has circuit board (5), circuit board (5) surface equidistance fixed mounting has square LED lamp pearl (51), baffle (6) are laminated on circuit board (5), baffle (6) are laminated on baffle (6) surface, baffle (6) and light-guiding plate (7) all offer two first light-guiding holes (71) on baffle (6) and light-guiding plate (7) surface equipartition apart from having offered second light-guiding hole (72), the fixed joint of surface of rear shell (1) has front shell (8), front shell (8) is kept away from rear shell (1) surface fixed mounting has square LED lamp pearl (51), baffle (101) are connected with the fixed post (101) of light-transmitting post (1) and the fixed connection position of light-guiding post (101), the surface equidistance fixedly connected with reference column (102) of backshell (1), the locating hole with reference column (102) assorted is seted up to the surface equidistance of circuit board (5), baffle (6) and light guide plate (7), the surface of spacing post (101) is pegged graft in the inside of jack, the surface of reference column (102) is pegged graft in the inside of locating hole.

2. The ultra-thin backlight module according to claim 1, wherein: the square LED lamp beads (51) are lateral light sources, and the light source surfaces of the square LED lamp beads (51) are opposite to the inner walls of the first light guide holes (71) and the second light guide holes (72).

3. The ultra-thin backlight module according to claim 1, wherein: the bump (4) is a rubber block, and the number of the mounting holes (3) and the number of the bumps (4) are three.

4. The ultra-thin backlight module according to claim 1, wherein: the circuit board (5) is matched with the partition board (6) in shape, and the thickness of the partition board (6) is larger than that of the circuit board (5).

5. The ultra-thin backlight module according to claim 1, wherein: the partition board (6) and the light-transmitting board (9) are acrylic boards.

6. The ultra-thin backlight module according to claim 1, wherein: the diameters of the rear shell (1) and the front shell (8) are larger than those of the circuit board (5), the partition board (6) and the light guide plate (7).