CN210015638U

CN210015638U - Lower shell structure of side-in type backlight module and side-in type backlight module

Info

Publication number: CN210015638U
Application number: CN201920555321.6U
Authority: CN
Inventors: 龚科; 姚志图; 罗增昌; 刘启玉; 彭环洋
Original assignee: HUIZHOU WEIZHI ELECTRONICS CO Ltd
Current assignee: HUIZHOU WEIZHI ELECTRONICS CO Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-02-04
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a side income formula backlight unit's inferior valve structure, inferior valve (1) are metal casing structure, and the bottom of inferior valve (1) is provided with multichannel to the convex recess (11) in the back, the recess intussuseption is filled with buffering cushion (14), the bulge position at the recess back bonds and has insulating double faced adhesive tape (15). In addition the utility model discloses still disclose a backlight unit including aforementioned inferior valve structure. The utility model is used for the backlight of display.

Description

Lower shell structure of side-in type backlight module and side-in type backlight module

Technical Field

The utility model relates to a display spare part technical field, concretely relates to side income formula backlight unit's inferior valve structure and side income formula backlight unit.

Background

The display is an image content display device and is important information reading and interaction equipment in work and life of people at present. The main structure of the display comprises a backlight module, a display panel, a main board and the like, wherein the backlight module is used as a backlight source to provide a light source for the display panel and also used as a supporting structure of the whole display, the display panel is fixed on the front side of the backlight module, and the main board is fixed on the rear side of the backlight module. The lower shell is a supporting structure of the backlight module and also serves as a main supporting structure of the display, the lower shell is generally made of hard metal, light diffusion structures such as a light guide plate of the lateral backlight module are installed in the lower shell, and the light diffusion structures such as the light guide plate are easy to collide with the hard lower shell and damage in a bumpy or vibrating environment; and the mainboard is fixed at the inferior valve back and the inferior valve area of contact of metal material is big, has the short circuit hidden danger.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the not enough in the background art, provide a side income formula backlight unit's that can solve inferior valve structure and side income formula backlight unit.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a side income formula backlight unit's inferior valve structure, the inferior valve is metal casing structure, and the bottom of inferior valve is provided with the convex recess of multichannel to the back, the recess intussuseption is filled with the buffering cushion, the protruding position at the recess back bonds and has insulating double faced adhesive tape.

Further, the groove comprises a middle groove and an outer groove, the middle groove is provided with a circle in the middle of the lower shell, and the outer groove is provided with a circle in the outer side of the lower shell.

Further, the middle groove comprises a plurality of discontinuous grooves; the outer groove is arranged close to the inner side of the side wall of the lower shell and is a circle of continuous groove.

Further, the inferior valve still is provided with the side fender structure, the side fender structure sets up in inferior valve inside near lateral wall department.

Further, the side keeps off the structure and includes side dog and reference column, the side dog passes through stamping forming, the reference column is installed on the inferior valve through the riveting.

Furthermore, a positioning bump is arranged at the top of the side wall of the lower shell, and a screw hole and a clamping block are arranged on the outer side of the side wall.

A lateral entrance type backlight module comprising the lower shell structure comprises a lower shell, a lateral entrance type light source, a light diffusion component and an upper frame; the lateral light source is fixed on the inner side wall of the lower shell; the light diffusion component is arranged in the lower shell and supported on the buffer rubber mat; the upper frame is fixed on the lower casing and fixes the light diffusion assembly in the lower casing.

Furthermore, the light diffusion component comprises a light reflecting sheet, a light guide plate, a light diffusing sheet and a light intensifying sheet which are sequentially stacked, and positioning openings and positioning holes are formed in the outer sides of the light reflecting sheet, the light guide plate, the light diffusing sheet and the light intensifying sheet; set up side dog and reference column in the inferior valve, the location opening matches with the side dog, the locating hole matches with the reference column.

Furthermore, a positioning lug is arranged on the lower shell, a positioning jack is arranged on the side face of the upper frame, and the positioning lug is inserted into the positioning jack.

Furthermore, a reinforcing block is arranged on the outer side of the joint of the adjacent side edges of the upper frame.

The utility model discloses a beneficial effect that inferior valve structure realized mainly has following several points: set up the recess in the inferior valve, the recess intussuseption is filled with the buffering cushion, and reflector plate, light guide plate, diffusion piece, add lustre to piece etc. install and support through the buffering cushion in the inferior valve, when using in the vibrations environment of jolting, can avoid reflector plate, light guide plate, diffusion piece, add lustre to piece etc. and the direct striking of inferior valve of stereoplasm, can protect inside reflector plate, light guide plate, diffusion piece, add lustre to piece etc. of inferior valve to make the inferior valve can regard as the backlight unit inferior valve that uses in special environment such as vibrations of jolting to use. The insulating double faced adhesive tape is bonded on the outer side of the protruding position on the back of the groove and used for bonding and fixing the main board of the terminal display, so that the main board is convenient to fix, and the main board can be prevented from being directly contacted with the lower shell made of metal materials, so that the short circuit risk is avoided; the mainboard is jacked up through the groove protruding towards the back of the lower shell, most of the mainboard is not in direct contact with the back of the mainboard, and short circuit risk can be reduced; in addition, the groove structure protruding towards the back of the lower shell can also be used as a reinforcing rib of the lower shell, so that the structural strength of the lower shell is improved.

The backlight module of the embodiment adopts the lower shell, so that the vibration and bump performance of the pit can be improved, and the backlight module has higher structural strength.

Drawings

Fig. 1 is a schematic perspective view of a middle-lower shell according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B in FIG. 1;

FIG. 4 is an enlarged schematic view of the portion C in FIG. 1;

fig. 5 is a schematic front structural view of a middle-lower shell structure according to an embodiment of the present invention;

fig. 6 is a schematic back structural view of a middle-lower shell structure according to an embodiment of the present invention;

fig. 7 is an exploded schematic view of a backlight module according to a second embodiment of the present invention;

fig. 8 is a schematic view of a connection structure between a lower case and a light diffusion assembly of a backlight module according to a second embodiment of the present invention;

FIG. 9 is an enlarged view of the portion D of FIG. 8;

FIG. 10 is an enlarged view of section E of FIG. 8;

fig. 11 is a schematic view of a connection structure between a lower housing and an upper frame of a backlight module according to a second embodiment of the present invention;

FIG. 12 is an enlarged view of the portion F of FIG. 11;

FIG. 13 is an enlarged view of the portion G of FIG. 11;

fig. 14 is an enlarged schematic view of a portion H in fig. 11.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 to 6, a lower case structure of a side-in type backlight module, the lower case 1 is a metal case structure, which may be an iron case, an aluminum case, or the like, and the case structure has an upper opening, a sidewall around the upper opening, and a bottom at the lower portion. The bottom of the lower shell 1 is provided with a plurality of grooves 11 protruding towards the back, a plurality of grooves 11 can be arranged in parallel, and a circle of grooves 11 can also be arranged; the recess 11 may be formed by stamping.

Referring to fig. 1-6, the groove is filled with a buffering rubber pad 14, which can be filled with a silica gel single-sided adhesive, and the buffering rubber pad 14 is preferably slightly higher than the bottom of the lower shell 1, so that the buffering effect is better. Through the buffering cushion 14 of inferior valve 1 bottom, reflector plate, light guide plate, diffusion piece, add lustre to piece etc. install and support through the buffering cushion in inferior valve 1, when using in the vibrations environment of jolting, can avoid reflector plate, light guide plate, diffusion piece, add lustre to piece etc. and the inferior valve 1 direct impact of stereoplasm, can protect reflector plate, light guide plate, diffusion piece, add lustre to piece etc. of inferior valve 1 inside to make the inferior valve can regard as the backlight unit inferior valve that uses in special environment such as vibrations of jolting to use. An insulating double-sided adhesive tape 15 is bonded on the outer side of the protruding position on the back of the groove, the insulating double-sided adhesive tape 15 is used for bonding and fixing a main board of the terminal display, so that the main board is convenient to fix, and the main board can be prevented from being in direct contact with a lower shell made of a metal material, so that the short circuit risk is avoided; the mainboard is jacked up through the groove 11 protruding towards the back of the lower shell, most of the mainboard is not in direct contact with the back of the mainboard, and the short circuit risk can be reduced; in addition, the groove structure protruding towards the back of the lower shell can also be used as a reinforcing rib of the lower shell, so that the structural strength of the lower shell is improved.

Referring to fig. 1 to 6, the groove 11 includes a middle groove 111 and an outer groove 112, the middle groove 111 is disposed in a circle in the middle of the lower case 1, and may be disposed in a continuous circle ring structure or may be disposed in a plurality of discontinuous grooves, which is exemplified in the present embodiment. The outer groove 112 may be provided near a part of the side of the lower case 1, or a continuous groove may be provided on the outer side of the lower case 1 immediately inside the side wall 13, the latter being used in the present embodiment. Each of the central grooves 111 is preferably filled with a cushion rubber 14 to enhance cushioning. The outer groove 112 is typically disposed on a side other than the side-entry light source to which it is fixedly mounted, and may optionally be partially disposed. The protruding surface of the back side of the middle groove 111 is preferably adhered with the double-sided adhesive tape 15 for better fixing the main board. The double-sided adhesive tape 15 may be adhered only to one side of the surface of the rear projection of the outer groove 112 for adhering and fixing the PCB board of the display panel.

Referring to fig. 1-6, inferior valve 1 still is provided with the side and keeps off the structure, the side keeps off the structure setting in inferior valve 1 inside near lateral wall 13 department for fix a position the light diffusion subassembly outside the light diffusion subassembly, and the side keeps off the structure and can withhold the location notch that sets up on the upper ledge when backlight unit equipment to can fix a position the light diffusion subassembly above the light diffusion subassembly. The side keeps off the structure and includes side dog 121 and reference column 122, can set up reference column 122, minor face at the long limit of inferior valve and set up side dog 121, and the reference column needs the locating hole cooperation on the light diffusion subassembly, and side dog 121 only need the side opening cooperation can, adopt side dog 121 and reference column 122 complex mode, can be in order to satisfy the location installation requirement of light diffusion subassembly, also can be in order to make things convenient for the installation of light diffusion subassembly. The side stop 121 can be formed by punching, and the positioning column 122 can be installed on the lower shell 1 by riveting.

Referring to fig. 1 to 6, the top of the sidewall 13 of the lower case 1 is provided with a positioning protrusion 131 for positioning and mounting with an upper frame of the backlight module, and the upper frame is provided with a corresponding positioning groove. And a screw hole 132 and a clamping block 133 are arranged on the outer side of the side wall 13, a fixing screw hole serving as a front frame of the terminal display is reserved in the screw hole 132, the clamping block 133 is used for clamping with an upper frame of the module, and a corresponding clamping hole is arranged on the upper frame.

Example two

Referring to fig. 1 to 14, a side-in type backlight module including a lower case structure according to an embodiment of the present invention includes a lower case 1, a side-in type light source 2, a light diffusion member 3, and an upper frame 4. The lateral light source 2 is fixed on the inner side wall of the lower shell 1 and is generally adhered and fixed by the heat-conducting double-sided adhesive tape 21, and the lateral light source 2 can adopt an LED lamp bar. The strip line 22 is led out of the lower shell through a hole arranged on the lower shell and is fixedly adhered to the back surface of the lower shell 1 through a fixing glue 23. The strip line 22 can be directly welded on the PCB of the light bar or can be inserted into or removed from the socket and the plug structure. The light diffusion component 3 is arranged in the lower shell 1 and is locally supported on the buffer rubber gasket. The upper frame 4 is fixed on the lower shell 1 and can be clamped with the clamping block 133 at the side of the lower shell 1 through the clamping hole 44 arranged at the side of the upper frame 4. After the lower shell is connected with the upper frame, the light diffusion component 3 can be blocked and fixed above, and the light diffusion component 3 is pressed and fixed in the lower shell 1.

Referring to fig. 7 to 14, the light diffusion assembly 3 includes a reflective sheet 31, a light guide plate 32, a light diffuser 33 and a light intensifying sheet 34 stacked in sequence, wherein the light intensifying sheet 34 in this embodiment has three layers to improve the brightness of the backlight module. The outer sides of the reflector 31, the light guide plate 32, the light diffuser 33 and the brightness enhancement film 34 are respectively provided with a positioning opening 35 and a positioning hole 36; a side stop block 121 and a positioning column 122 are arranged in the lower shell 1, the positioning opening 35 is matched with the side stop block 121, and the positioning hole 36 is matched with the positioning column 122, so that the light diffusion component 3 can be further fixed.

Referring to fig. 7 and 12, the lower case 1 is provided with a positioning protrusion 131, the side surface of the upper frame 4 is provided with a positioning insertion hole 41, and the positioning protrusion 131 is inserted into the positioning insertion hole 41, so that the upper frame 4 can be prevented from being taken off from the lower case 1.

Referring to fig. 7 to 14, the outer sides (i.e., four corners) of the joints between the adjacent side edges of the upper frame 4 are provided with reinforcing blocks 42 to prevent the upper frame 4 from being broken. In addition, the dust-proof glue 16 is preferably adhered to the outer side of the punched hole formed when the side stopper 121 is punched on the back surface of the lower case 4; the outer side of the light guide plate is preferably provided with a silica gel block 17, and the light guide plate is further clamped and fixed in the lower shell 1; the rubber pad 43 is arranged on the upper frame, so that the display panel can be conveniently installed subsequently.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a lower shell structure of side income formula backlight unit which characterized in that: inferior valve (1) is the metal casing structure, and the bottom of inferior valve (1) is provided with protruding recess (11) in the multichannel to the back, the recess intussuseption is filled with buffering cushion (14), the protruding position at the recess back bonds and has insulating double faced adhesive tape (15).

2. The lower case structure of the side-entry backlight module of claim 1, wherein: the groove (11) comprises a middle groove (111) and an outer groove (112), the middle groove (111) is provided with a circle in the middle of the lower shell (1), and the outer groove (112) is provided with a circle in the outer side of the lower shell (1).

3. The lower case structure of the side-entry backlight module of claim 2, wherein: the middle groove (111) comprises a plurality of discontinuous grooves; the outer groove (112) is arranged close to the inner side of the side wall (13) of the lower shell and is a circle of continuous groove.

4. The lower case structure of the side-entry backlight module of claim 1, wherein: inferior valve (1) still is provided with the side and keeps off the structure, the side keeps off the structure setting and is close to lateral wall (13) department in inferior valve (1) inside.

5. The lower case structure of the side-entry backlight module of claim 4, wherein: the side keeps off the structure and includes side dog (121) and reference column (122), side dog (121) are through stamping forming, reference column (122) are installed on inferior valve (1) through the riveting.

6. The lower case structure of the side-entry backlight module of claim 1, wherein: the top of the side wall (13) of the lower shell (1) is provided with a positioning bump (131), and the outer side of the side wall (13) is provided with a screw hole (132) and a clamping block (133).

7. A lateral backlight module comprising the lower case structure of any one of claims 1 to 6, wherein: comprises a lower shell (1), a lateral light source (2), a light diffusion component (3) and an upper frame (4); the lateral light source (2) is fixed on the inner side wall of the lower shell (1); the light diffusion component (3) is arranged in the lower shell (1) and is supported on the buffer rubber mat; the upper frame (4) is fixed on the lower shell (1) and fixes the light diffusion component (3) in the lower shell (1).

8. The edge-lit backlight module of claim 7, wherein: the light diffusion component (3) comprises a light reflecting sheet (31), a light guide plate (32), a light diffusing sheet (33) and a light intensifying sheet (34) which are sequentially stacked, and positioning openings (35) and positioning holes (36) are formed in the outer sides of the light reflecting sheet (31), the light guide plate (32), the light diffusing sheet (33) and the light intensifying sheet (34); a side stop block (121) and a positioning column (122) are arranged in the lower shell (1), the positioning opening (35) is matched with the side stop block (121), and the positioning hole (36) is matched with the positioning column (122).

9. The edge-lit backlight module of claim 8, wherein: the positioning device is characterized in that a positioning lug (131) is arranged on the lower shell (1), a positioning insertion hole (41) is formed in the side face of the upper frame (4), and the positioning lug (131) is inserted into the positioning insertion hole (41).

10. The edge-lit backlight module of claim 8, wherein: and a reinforcing block (42) is arranged on the outer side of the joint of the adjacent side edges of the upper frame (4).