CN212933204U

CN212933204U - Anti-overflow light backlight board

Info

Publication number: CN212933204U
Application number: CN202021679844.0U
Authority: CN
Inventors: 许子兵
Original assignee: Shenzhen Yisida Information Technology Co ltd
Current assignee: Shenzhen Yisida Information Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-09
Anticipated expiration: 2030-08-13

Abstract

The utility model provides a backlight plate for preventing light overflow, which relates to the technical field of backlight plates and comprises a bottom shell, wherein the top of the bottom shell is provided with an upper cover, the upper cover is fixedly connected with the bottom shell through a bolt, the inside of the upper cover is embedded with a screen, the inside of the bottom shell is provided with a mounting groove, the inside of the mounting groove is provided with a backlight plate, the periphery of the backlight plate is sleeved with a rubber frame, one side of the rubber frame is provided with a positioning head, the surface of the positioning head is provided with a lampshade, the positioning head and the inner wall of the lampshade are respectively provided with a reflector, the periphery of the backlight plate is pasted with a piece of shading paper, the periphery of the backlight plate is provided with the rubber frame, the rubber frame can seal the light of the backlight plate, the positioning head and the lampshade between the backlight plate and a light source are controlled to be popped out by a spring bolt to be clamped into a limiting, the trapezoidal spring bolt is convenient for the installation and the dismantlement of lamp shade and board in a poor light, is convenient for the change of lamp source.

Description

Anti-overflow light backlight board

Technical Field

The utility model relates to a board technical field in a poor light especially relates to a board in a poor light of anti-overflow light.

Background

The backlight plate is a light source device for ensuring the brightness of the back of the liquid crystal display screen, and generally adopts a side light-emitting structure in order to realize uniform light emission. The concrete structure is a cell body, has seted up the kerve on the cell body, installs light source board and light guide plate on the kerve, and the light source board is installed at an inside wall of kerve, and the side butt of light guide plate is the light emitting area setting of this light source board.

The existing backlight plate is easy to have position deviation with a light source when being installed, or the existing backlight plate is not sealed with an installation part, so that light overflow is caused, the backlight effect is influenced, the structure is complex when the existing backlight plate is installed, the operation is complex when the existing backlight plate is maintained or replaced, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a backlight plate for preventing light overflow.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a backlight plate of anti-overflow light, includes the drain pan, the drain pan top is equipped with the upper cover, and upper cover and drain pan pass through bolt fixed connection, the inside screen that has inlayed of upper cover, the inside mounting groove of having seted up of drain pan, the inside board that is equipped with in mounting groove, the board that is shaded has cup jointed all around and has glued the frame, it is equipped with the location head to glue frame one side, location head surface is equipped with the lamp shade, location head, lamp shade inner wall all are equipped with the reflector panel.

Preferably, a limiting column is arranged between the two corners of the rubber frame close to one side of the lampshade and the bottom shell, and the limiting column is fixedly connected with the inner wall of the bottom shell.

Preferably, the glue frame is provided with a supporting plate on one side away from the limiting column, a supporting spring is arranged between the supporting plate and the inner wall of the bottom shell, and two ends of the supporting spring are respectively fixedly connected with the inner wall of the bottom shell and the supporting plate.

Preferably, the first both sides fixedly connected with support column of location, the spring bolt has been cup jointed on the support column surface, spacing spring has been cup jointed on the support column surface, and spacing spring respectively with spring bolt, the first fixed connection of location, the spacing groove has been seted up in the corresponding department of spring bolt to the lamp shade inner wall.

Preferably, the backlight plate comprises a reflector plate, a light guide plate is arranged on one side of the reflector plate, a first diffusion sheet is arranged on one side of the light guide plate, a prism sheet is arranged on one side of the first diffusion sheet, and a second diffusion sheet is arranged on one side of the prism sheet.

Preferably, the spring bolt is internally provided with a groove which is a blind groove, the diameter of the blind groove is in clearance fit with the diameter of the support column, and the depth of the blind groove is equal to the length of the support column.

Preferably, the backlight plate is all bonded with the shading paper all around, the upper section of the lock tongue is isosceles trapezoid, and the waist of the isosceles trapezoid is arc-shaped.

Advantageous effects

The utility model discloses in, the shading paper is pasted all around to the board in a poor light, and the board in a poor light is inherent all around glues the frame, glues the frame and can seal the light of board in a poor light, and the location head pops out the card through spacing spring control spring bolt with the lamp shade between board in a poor light and the light source and realizes fixing in going into the spacing groove, thereby board in a poor light and light source integral type design in a poor light and light source position deviation appear and lead to the excessive light when preventing the installation, the effect of being shaded is ensured.

The utility model discloses in, during the installation board in a poor light, earlier with board one end extrusion backup pad in a poor light, backup pad extrusion supporting spring shrink pushes down the board in a poor light other end again and makes its card go into the mounting groove, and supporting spring kick-backs for spacing post blocks the board in a poor light, thereby realizes fixedly, and mounting structure is simple swift, when changing the board in a poor light, labour saving and time saving.

The utility model discloses in, lamp source fixed mounting is in the lamp shade, and trapezoidal spring bolt is convenient for the lamp shade and the installation and the dismantlement of board in a poor light, the change of the lamp source of being convenient for.

Drawings

FIG. 1 is an isometric view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front cross-sectional view of the present invention;

FIG. 4 is an enlarged view taken at FIG. 3-A;

fig. 5 is an upper sectional view of the present invention;

FIG. 6 is an enlarged view taken at FIG. 5-B;

fig. 7 is a schematic structural view of a backlight plate.

Illustration of the drawings:

1. a bottom case; 2. a lamp shade; 3. a rubber frame; 4. a backlight plate; 401. a reflective sheet; 402. a light guide plate; 403. a first diffusion sheet; 404. a prism sheet; 405. a second diffusion sheet; 5. an upper cover; 6. a limiting column; 7. mounting grooves; 8. a support spring; 9. a support plate; 10. positioning the head; 11. a reflector; 12. a limiting groove; 13. a latch bolt; 14. a limiting spring; 15. a support pillar; 16. and (6) a screen.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-7, an anti-overflow backlight plate comprises a bottom case 1, an upper cover 5 is arranged at the top of the bottom case 1, the upper cover 5 is fixedly connected with the bottom case 1 through bolts, a screen 16 is embedded in the upper cover 5, a mounting groove 7 is formed in the bottom case 1, a backlight plate 4 is arranged in the mounting groove 7, a rubber frame 3 is sleeved around the backlight plate 4, a positioning head 10 is arranged on one side of the rubber frame 3, a lampshade 2 is arranged on the surface of the positioning head 10, the positioning head 10 and the inner wall of the lampshade 2 are both provided with a reflector plate 11, the backlight plate 4 comprises a reflector plate 401, a light guide plate 402 is arranged on one side of the reflector plate 401, a first diffusion plate 403 is arranged on one side of the light guide plate 402, a prism sheet 404.

Glue and be equipped with spacing post 6 between two turnings and the drain pan 1 that frame 3 is close to lamp shade 2 one side, and spacing

post

6 and 1 inner wall fixed connection of drain pan, it is equipped with backup pad 9 to glue frame 3 and keep away from spacing post 6 one side, be equipped with supporting spring 8 between backup pad 9 and the 1 inner wall of drain pan, and supporting spring 8 both ends respectively with the 1 inner wall of drain pan, backup pad 9 fixed connection, during installation backlight plate 4, extrude backup pad 9 with 4 one end of backlight plate earlier, backup pad 9 extrudes supporting spring 8 shrink, press the 4 other ends of backlight plate down again and make its card go into in mounting groove 7, supporting spring 8 kick-backs, make spacing post 6 block backlight plate 4, thereby realize fixedly, simple structure is swift, when changing backlight plate 4, time saving and labor saving.

The positioning head 10 is fixedly connected with supporting columns 15 on both sides, the surface of the supporting column 15 is sleeved with a lock tongue 13, the surface of the supporting column 15 is sleeved with a limiting spring 14, the limiting spring 14 is respectively fixedly connected with the lock tongue 13 and the positioning head 10, the inner wall of the lampshade 2 is provided with a limiting groove 12 at the corresponding position of the lock tongue 13, the lock tongue 13 is internally provided with a groove which is a blind groove, the diameter of the blind groove is in clearance fit with the diameter of the supporting column 15, the depth of the blind groove is equal to the length of the supporting column 15, the periphery of the backlight plate 4 is bonded with masking paper, the upper section of the lock tongue 13 is isosceles trapezoid, the waist of the isosceles trapezoid is arc-shaped, the periphery of the backlight plate 4 is bonded with the masking paper, the periphery of the backlight plate 4 is provided with a rubber frame 3, the rubber frame 3 can seal the light of the backlight plate 4, the positioning head 10 and the lampshade 2 between the backlight plate, thereby board 4 in a poor light and the design of lamp source integral type, 4 in a poor light and the lamp source position deviation appear and lead to the excessive light when preventing to install, the effect in a poor light of guarantee, lamp source fixed mounting is in lamp shade 2, and trapezoidal spring bolt 13 is convenient for the lamp shade 2 and the installation and the dismantlement of board 4 in a poor light, the change of the lamp source of being convenient for.

The utility model discloses a theory of operation: the device is used, firstly, a lamp source is installed in the lampshade 2, then the lampshade 2 and the positioning head 10 are relatively extruded, when the lamp source is extruded, the inner wall of the lampshade 2 extrudes the lock tongue 13, the lock tongue 13 extrudes the limit spring 14 and slides along the support column 15, when the limit groove 12 slides to the support column 15, the limit spring 14 rebounds, the lock tongue 13 extends out and is embedded into the limit groove 12, the fixation between the lampshade 2 and the backlight plate 4 is completed, after the fixation is completed, one end of the backlight plate 4 far away from the lampshade 2 is used for supporting the support plate 9, the support plate 9 extrudes the support spring 8, the spring contracts, the backlight plate 4 is completely embedded into the mounting groove 7, at the moment, the support spring 8 rebounds, the support plate 9 and the limit column 6 jointly limit the backlight plate 4, after the limit is completed, the upper cover 5 is clamped on the bottom shell 1 and is fixed through the, take off upper cover 5, detain the board 4 in a poor light and keep away from 9 one ends of backup pad, the board 4 in a poor light extrudes supporting spring 8, just can take out the board 4 in a poor light easily, takes out the back, outwards stimulates lamp shade 2, and lamp shade 2 inner wall extrusion spring bolt 13 just can easily take off lamp shade 2, and then maintains the change to the light source.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a board in a poor light of anti-overflow light, includes drain pan (1), its characterized in that: the improved LED lamp shade is characterized in that an upper cover (5) is arranged at the top of the bottom shell (1), the upper cover (5) is fixedly connected with the bottom shell (1) through bolts, a screen (16) is embedded in the upper cover (5), a mounting groove (7) is formed in the bottom shell (1), a backlight plate (4) is arranged in the mounting groove (7), a rubber frame (3) is sleeved on the periphery of the backlight plate (4), a positioning head (10) is arranged on one side of the rubber frame (3), a lamp shade (2) is arranged on the surface of the positioning head (10), and a reflecting plate (11) is arranged on the inner wall of the positioning head (10) and the inner wall of the lamp.

2. The backlight plate for preventing light overflow according to claim 1, wherein: spacing posts (6) are arranged between two corners of one side, close to the lampshade (2), of the rubber frame (3) and the bottom shell (1), and the spacing posts (6) are fixedly connected with the inner wall of the bottom shell (1).

3. The backlight plate for preventing light overflow according to claim 1, wherein: glue frame (3) and keep away from spacing post (6) one side and be equipped with backup pad (9), be equipped with supporting spring (8) between backup pad (9) and drain pan (1) inner wall, and supporting spring (8) both ends respectively with drain pan (1) inner wall, backup pad (9) fixed connection.

4. The backlight plate for preventing light overflow according to claim 1, wherein: first (10) both sides fixedly connected with support column (15) of location, spring bolt (13) have been cup jointed on support column (15) surface, spacing spring (14) have been cup jointed on support column (15) surface, and spacing spring (14) respectively with spring bolt (13), location head (10) fixed connection, spacing groove (12) have been seted up in the department that corresponds of spring bolt (13) to lamp shade (2) inner wall.

5. The backlight plate for preventing light overflow according to claim 1, wherein: the backlight plate (4) comprises a reflecting sheet (401), a light guide plate (402) is arranged on one side of the reflecting sheet (401), a first diffusion sheet (403) is arranged on one side of the light guide plate (402), a prism sheet (404) is arranged on one side of the first diffusion sheet (403), and a second diffusion sheet (405) is arranged on one side of the prism sheet (404).

6. The backlight panel of claim 4, wherein: the spring bolt (13) is internally provided with a groove which is a blind groove, the diameter of the blind groove is in clearance fit with the diameter of the support column (15), and the depth of the blind groove is equal to the length of the support column (15).

7. The backlight panel of claim 4, wherein: shading paper is bonded on the periphery of the backlight plate (4), the upper section of the lock tongue (13) is isosceles trapezoid, and the waist of the isosceles trapezoid is arc-shaped.