CN216670453U

CN216670453U - Backlight convenient to dismantle maintenance

Info

Publication number: CN216670453U
Application number: CN202122137986.5U
Authority: CN
Inventors: 施振华; 陶嵘
Original assignee: Shenzhen Wanxin Precision Industry Co ltd
Current assignee: Shenzhen Wanxin Precision Industry Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-06-03
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of backlight sources, and discloses a backlight source convenient to disassemble and maintain, which comprises a clamping frame component and a backlight source component embedded and arranged in the clamping frame component, wherein the clamping frame component comprises an upper clamping frame which covers the upper end of the backlight source component, and a lower clamping frame covering the lower end of the backlight source component, wherein the lower clamping frame is embedded with the upper clamping frame, the embedded block is embedded in the third through groove through the first through groove and the second through groove, the downward pressing of the semicircular block can compress the spring of the spring guide post, thereby extruding the clamping strip to move towards the inner part of the hidden strip groove, enabling the semicircular block to be positioned at the position right below the curved surface head by continuously pressing down the semicircular block, and then the spring of the spring guide post returns to the natural state, thereby the curved surface head extrudes the side of the embedding block, connects the light guide film, the light guide plate, the lamp tube strip and the upper clamping frame at the moment, and can easily take out the lamp tube strip which is easiest to damage for maintenance only by separating the upper clamping frame.

Description

Backlight convenient to dismantle maintenance

Technical Field

The utility model relates to the technical field of backlight sources, in particular to a backlight source convenient to disassemble and maintain.

Background

The backlight source is a light source located at the back of the liquid crystal display, and the light emitting effect of the backlight source directly influences the visual effect of the liquid crystal display module. The liquid crystal display does not emit light itself, and it displays a pattern or its result of modulating light.

Traditional backlight is when installing, need install respectively after stacking individual structure, leads to when the maintenance is dismantled to needs, and the step of dismantling is more complicated, has increased the time length of maintenance, and traditional leaded light film when the installation is unstable, the film phenomenon of bending easily appears to influence the light-emitting function of backlight.

In order to solve the problems, the backlight source convenient to disassemble and maintain is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a backlight source convenient to disassemble and maintain, which comprises a clamping frame assembly and a backlight source assembly embedded in the clamping frame assembly, can be used for rapidly disassembling a backlight source structure, and cannot generate a film bending phenomenon, so that the problems in the background technology are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a backlight source convenient to disassemble and maintain comprises a clamping frame assembly and a backlight source assembly embedded in the clamping frame assembly, wherein the clamping frame assembly comprises an upper clamping frame covering the upper end of the backlight source assembly and a lower clamping frame covering the lower end of the backlight source assembly, and the lower clamping frame is embedded with the upper clamping frame;

the backlight source component comprises a light guide plate which is embedded in the lower clamping frame, lamp tube strips which are embedded at two ends of the light guide plate, and a light guide film which is arranged at the upper end of the light guide plate;

the lamp tube strip comprises a third through groove arranged inside the lamp tube strip, a hidden groove arranged on the inner wall of the third through groove and a clamping strip movably arranged inside the hidden groove, and the third through groove is provided with a plurality of groups.

Preferably, go up the card frame including running through the card frame groove of seting up in last card frame inside to and set up the four corners frame and the gomphosis piece of setting at the four corners frame downside in last card frame upper end, go up the card frame still including seting up the fixed strip groove in last card frame both sides.

Preferably, the mosaic blocks are positioned at two sides in the upper clamping frame, a plurality of groups of mosaic blocks are arranged, and a semicircular block is arranged at one side of the mosaic block.

Preferably, the lower clamping frame includes a penetrating groove penetrating through both sides of the lower clamping frame and a fitting groove formed in the lower clamping frame, and the light guide plate is fitted in the fitting groove.

Preferably, the fixed strip groove comprises an inclined plate strip movably arranged in the fixed strip groove and a connecting spring arranged on one side of the inclined plate strip, the connecting springs are arranged in multiple groups, one end of each connecting spring is connected with the inner wall of the fixed strip groove, and one side of the inclined plate strip is rotatably connected with the bottom of the fixed strip groove.

Preferably, the light guide film comprises first through grooves penetrating through two sides of the light guide film, and the length and width of the first through grooves are greater than those of the tabling blocks and the third through grooves.

Preferably, the light guide plate includes the second through grooves of seting up in the light guide plate both sides to and set up the inside mounting groove in light guide plate both sides, and the fluorescent tube strip gomphosis is inside the mounting groove, and third through groove, second through groove, first through groove and gomphosis piece are in same vertical line.

Preferably, the clamping strip comprises a curved head arranged at one end of the clamping strip, a guide groove arranged inside the clamping strip and a spring guide pillar arranged inside the guide groove, and one end of the spring guide pillar is arranged inside the hidden strip groove.

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

1. the utility model provides a backlight source convenient for disassembly and maintenance, a lamp tube strip is taken to be preliminarily embedded in an installation groove, a second through groove is positioned right above a third through groove, a light guide film is taken to cover the upper side surface of a light guide plate, a first through groove is positioned right above the second through groove, an upper clamping frame is taken to cover the light guide film and the light guide plate and then pressed downwards, so that the light guide film and the light guide plate are embedded in the upper clamping frame, an embedding block is embedded in the third through groove through the first through groove and the second through groove, the downward pressing of a semicircular block compresses a spring of a spring, the clamping strip is extruded to move towards the inside of a hidden strip groove, the semicircular block is positioned right below a curved surface head due to the continuous downward pressing of the semicircular block, the spring of the spring guide column returns to a natural state, and the curved surface head is extruded on the side surface of the embedding block, connect light guide film, light guide plate, fluorescent tube strip and the last card frame this moment, when needs are dismantled light guide film, light guide plate, fluorescent tube strip and last card frame, only need separate the card frame on, can take out the most fragile fluorescent tube strip easily and maintain.

2. The utility model provides a backlight source convenient for disassembly and maintenance, after a light guide film, a light guide plate, a lamp tube strip and an upper clamping frame are preliminarily connected, the upper clamping frame is taken out and embedded in an embedding groove, when the upper clamping frame is pressed and embedded downwards, the inner wall of the embedding groove can extrude one end of the inclined lath to move towards the inside of the fixed lath groove to compress the connecting spring, when the upper clamping frame is completely pressed and embedded in the embedding groove, the inclined lath is positioned in the penetrating groove, the connecting spring returns to the natural state, the inclined lath is pushed by the connecting spring, thereby be the slant state, one side of the strake this moment can with run through a groove inner wall and be connected to connected leaded light film, light guide plate, fluorescent tube strip, go up card frame and lower card frame, leaded light film, light guide plate, fluorescent tube strip inside going up card frame and lower card frame are through inside and outside connection structure centre gripping, inseparable gomphosis is inside last card frame and lower card frame.

3. According to the backlight source convenient to disassemble and maintain, the length and the width of the first through groove are larger than those of the embedded block and the third through groove, when the embedded block is embedded in the first through groove, the embedded block and the first through groove are prevented from being torn, the position of the light guide film is fixed, the phenomenon that the light guide film is bent after being installed is avoided, and after the upper clamping frame covers the light guide film, the four-corner frame can completely cover the multiple groups of first through grooves, so that the first through groove is prevented from influencing the light emitting function of the whole device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a card frame assembly according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a semicircular block structure according to the present invention;

FIG. 5 is a schematic view of a backlight assembly according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 5B according to the present invention;

FIG. 7 is a schematic side plan view of the strip of lamps of the present invention.

In the figure: 1. a card frame assembly; 11. mounting a clamping frame; 111. a frame clamping groove; 112. a quadrangular frame; 113. a fitting block; 1131. a semicircular block; 114. fixing strip grooves; 1141. a ramp strip; 1142. a connecting spring; 12. a lower clamping frame; 121. the strip groove is penetrated; 122. a fitting groove; 2. a backlight unit; 21. a light directing film; 211. a first passage groove; 22. a light guide plate; 221. a second passage groove; 222. mounting grooves; 23. a lamp tube strip; 231. a third through groove; 232. hiding the strip groove; 233. clamping the strip; 2331. a curved head; 2332. a guide groove; 2333. and a spring guide post.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1, a backlight source convenient for disassembly and maintenance includes a card frame assembly 1 and a backlight source assembly 2 embedded in the card frame assembly 1.

Referring to fig. 2-4, a backlight source convenient for disassembly and maintenance, the backlight source assembly 2 includes a light guide plate 22 embedded in a lower clamping frame 12, lamp strips 23 embedded in two ends of the light guide plate 22, and a light guide film 21 disposed on an upper end of the light guide plate 22, the lamp strips 23 include third through grooves 231 disposed in the lamp strips 23, hidden strip grooves 232 disposed in inner walls of the third through grooves 231, and clamping strips 233 movably disposed in the hidden strip grooves 232, the third through grooves 231 are disposed in plural sets, the light guide film 21 includes first through grooves 211 disposed on two sides of the light guide film 21, the length and width of the first through grooves 211 are greater than those of the embedding blocks 113 and the third through grooves 231, the light guide plate 22 includes second through grooves 221 disposed on two sides of the light guide plate 22, and mounting grooves 222 disposed on two sides of the light guide plate 22, the lamp strips 23 are embedded in the mounting grooves 222, the third passing groove 231, the second passing groove 221, the first passing groove 211 and the engagement block 113 are on the same vertical line, the engagement bar 233 includes a curved head 2331 disposed at one end of the engagement bar 233, a guide groove 2332 disposed inside the engagement bar 233 and a spring guide 2333 disposed inside the guide groove 2332, and one end of the spring guide 2333 is disposed inside the hidden bar groove 232.

Referring to fig. 5-7, a backlight source convenient for disassembly and maintenance, the frame assembly 1 includes an upper frame 11 covering the upper end of the backlight source assembly 2, and a lower frame 12 covering the lower end of the backlight source assembly 2, and the lower frame 12 is engaged with the upper frame 11, the upper frame 11 includes a frame slot 111 penetrating the upper frame 11, a quadrangular frame 112 disposed at the upper end of the upper frame 11 and a fitting block 113 disposed at the lower side of the quadrangular frame 112, the upper frame 11 further includes a fixing strip slot 114 disposed at both sides of the upper frame 11, the fitting block 113 is provided with a plurality of sets, one side of the fitting block 113 is provided with a semicircular block 1131, the lower frame 12 includes a penetrating strip slot 121 penetrating both sides of the lower frame 12 and a fitting slot 122 disposed at the inner side of the lower frame 12, the light guide plate 22 is fitted in the fitting slot 122, the fixed strip groove 114 comprises a plurality of groups of inclined strip 1141 movably arranged inside the fixed strip groove 114 and a plurality of groups of connecting springs 1142 arranged on one side of the inclined strip 1141, one end of each connecting spring 1142 is connected with the inner wall of the fixed strip groove 114, and one side of the inclined strip 1141 is rotatably connected with the bottom of the fixed strip groove 114.

The working principle is as follows: taking the lamp strip 23 to be preliminarily embedded in the installation groove 222, taking the second passing groove 221 to be right above the third passing groove 231, taking the light guide film 21 to cover the upper side surface of the light guide plate 22, taking the first passing groove 211 to be right above the second passing groove 221, taking the upper clamping frame 11 to cover the light guide film 21 and the light guide plate 22, and then pressing down, so that the light guide film 21 and the light guide plate 22 are embedded in the upper clamping frame 11, at this time, the embedding block 113 is embedded in the third passing groove 231 through the first passing groove 211 and the second passing groove 221, the pressing down of the semicircular block 1131 compresses the spring of the spring guide post 2333, so as to press the clamping strip 233 to move towards the interior of the hidden strip groove 232, due to the arrangement of the curved surface head 2331, the continuous pressing down of the semicircular block 1131 makes the position of the semicircular block 1131 be right below the curved surface head 2331, at this time, the spring of the spring guide post 2333 returns to a natural state, thus, the curved head 2331 is pressed against the side surface of the engaging block 113 to connect the light guide film 21, the light guide plate 22, the lamp strip 23 and the upper engaging frame 11, when the light guide film 21, the light guide plate 22, the lamp strip 23 and the upper engaging frame 11 need to be disassembled, the lamp strip 23 which is most vulnerable can be easily taken out for maintenance by separating the upper engaging frame 11, when the light guide film 21, the light guide plate 22, the lamp strip 23 and the upper engaging frame 11 are preliminarily connected, the upper engaging frame 11 is taken out to be engaged in the engaging groove 122, when the upper engaging frame 11 is pressed and engaged, the inner wall of the engaging groove 122 will press one end of the slanted bar 1141 to move towards the inside of the fixed bar groove 114 to compress the connecting spring 1142, when the upper engaging frame 11 is completely pressed and engaged in the engaging groove 122, the slanted bar 1141 is in the through bar groove 121 to return to the natural state, and the slanted bar 1141 is pushed by the connecting spring 1142 to assume a slanted state, at this time, one side of the slanted bar 1141 is connected to the inner wall of the through-groove 121, thereby connecting the light guide film 21, the light guide plate 22, the lamp strip 23, the upper clamping frame 11 and the lower clamping frame 12, the light guide film 21, the light guide plate 22, and the lamp strip 23 inside the upper clamping frame 11 and the lower clamping frame 12 are clamped by the inner and outer connection structure, can be tightly embedded in the upper clamping frame 11 and the lower clamping frame 12, because the length and the width of the first passing groove 211 are larger than the length and the width of the embedding block 113 and the third passing groove 231, when the tabling block 113 is tabled with the first passing groove 211, the tabling block 113 is prevented from being torn from the first passing groove 211, the position of the light guide film 21 is fixed, the bending phenomenon after the light guide film 21 is installed is avoided, after the upper clamping frame 11 covers the light guide film 21, the four-corner frame 112 completely covers the plurality of groups of first passing grooves 211, so as to prevent the first passing grooves 211 from affecting the light emitting function of the whole device.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a backlight convenient to dismantle maintenance, sets up backlight subassembly (2) inside calorie frame subassembly (1) including card frame subassembly (1) and gomphosis, its characterized in that: the clamping frame assembly (1) comprises an upper clamping frame (11) arranged at the upper end of the backlight source assembly (2) in a covering mode, and a lower clamping frame (12) arranged at the lower end of the backlight source assembly (2) in a covering mode, and the lower clamping frame (12) is embedded with the upper clamping frame (11);

the backlight source component (2) comprises a light guide plate (22) which is embedded in the lower clamping frame (12), lamp tube strips (23) which are embedded at two ends of the light guide plate (22) and a light guide film (21) which is arranged at the upper end of the light guide plate (22);

the lamp tube strip (23) comprises a third through groove (231) formed in the lamp tube strip (23), a hidden groove (232) formed in the inner wall of the third through groove (231) and a clamping strip (233) movably arranged in the hidden groove (232), and the third through groove (231) is provided with multiple groups.

2. A backlight for facilitating removal and maintenance according to claim 1, wherein: go up card frame (11) including running through card frame groove (111) of seting up in last card frame (11) inside to and set up four corners frame (112) in last card frame (11) upper end and set up gomphosis piece (113) in four corners frame (112) downside, go up card frame (11) still including seting up in fixed strip groove (114) of last card frame (11) both sides.

3. A backlight for facilitating removal and maintenance according to claim 2, wherein: the mosaic blocks (113) are positioned at two sides inside the upper clamping frame (11), a plurality of groups of mosaic blocks (113) are arranged, and one side of the mosaic block (113) is provided with a semicircular block (1131).

4. A backlight as claimed in claim 1, which is adapted to be readily disassembled for repair, wherein: the lower clamping frame (12) comprises a penetrating strip groove (121) penetrating and arranged on two sides of the lower clamping frame (12) and an embedded groove (122) arranged in the lower clamping frame (12), and the light guide plate (22) is embedded in the embedded groove (122).

5. A backlight for facilitating removal and maintenance according to claim 2, wherein: the fixed strip groove (114) comprises an inclined plate strip (1141) movably arranged in the fixed strip groove (114) and a plurality of groups of connecting springs (1142) arranged on one side of the inclined plate strip (1141), one end of each connecting spring (1142) is connected with the inner wall of the fixed strip groove (114), and one side of the inclined plate strip (1141) is rotatably connected with the bottom of the fixed strip groove (114).

6. A backlight for facilitating removal and maintenance according to claim 2, wherein: the light guide film (21) comprises first passing grooves (211) which penetrate through two sides of the light guide film (21), and the length and width of the first passing grooves (211) are larger than those of the embedded blocks (113) and the third passing grooves (231).

7. A backlight for facilitating removal and maintenance according to claim 6, wherein: the light guide plate (22) comprises second through grooves (221) formed in two sides of the light guide plate (22) and installation grooves (222) formed in two sides of the light guide plate (22), the lamp tube strips (23) are embedded in the installation grooves (222), and the third through grooves (231), the second through grooves (221), the first through grooves (211) and the embedding blocks (113) are located on the same vertical line.

8. A backlight for facilitating removal and maintenance according to claim 1, wherein: the clamping bar (233) comprises a curved head (2331) arranged at one end of the clamping bar (233), a guide groove (2332) arranged in the clamping bar (233) and a spring guide post (2333) arranged in the guide groove (2332), and one end of the spring guide post (2333) is arranged in the hidden bar groove (232).