CN202327878U - Backlight module, back panel and liquid crystal display device - Google Patents
Backlight module, back panel and liquid crystal display device Download PDFInfo
- Publication number
- CN202327878U CN202327878U CN2011204620537U CN201120462053U CN202327878U CN 202327878 U CN202327878 U CN 202327878U CN 2011204620537 U CN2011204620537 U CN 2011204620537U CN 201120462053 U CN201120462053 U CN 201120462053U CN 202327878 U CN202327878 U CN 202327878U
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- China
- Prior art keywords
- backboard
- convex closure
- pcb
- locks
- chute
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a backlight module, a back panel and a liquid crystal display device. The backlight module comprises the back panel, a PCB (Printed Circuit Board) and a locking accessory used for fixing the PCB on the back panel, wherein the back panel comprises a frame and a bracket bridge, the frame consists of multiple brackets, the bracket bridge is arranged on the brackets, a sliding chute is arranged on the brackets or the bracket bridge, and the locking accessory is mounted on the sliding chute through the fixing structure at the bottom of the locking accessory. According to the utility model, the back panel is of a frame structure consisting of multiple brackets, the bracket bridge for mounting components such as the PCB is arranged on the frame, and the brackets and the bracket bridge can be formed by combining general formed parts, so that the manufacturing cost is lower, and a large number of materials are saved; and besides, the sliding chute is arranged on the bracket bridge, so that bulges can be arranged on the sliding chute, the bulges can be fixed at any positions of the sliding chute, so that the bulges can be arranged on the corresponding positions of the sliding chute according to the dimensions of the PCB, and further, the back panel is led to be adaptive to the backlight modules or liquid crystal display devices with different dimensions of PCBs or different numbers of components.
Description
Technical field
The utility model relates to field of liquid crystal display, in particular, relates to a kind of module backlight, backboard and liquid crystal indicator.
Background technology
Liquid crystal module in the existing volume production is all used all-in-one-piece backboard.General metal stamping or the plastics injection system global formation of using makes product heavier, and the material cost of product is higher.The large scale product need use bigger pressing equipment, and cost is higher, and corresponding die size is very big, complex structure, and die cost is also very high.Be illustrated in figure 1 as existing a kind of back board structure sketch, this backboard is formed by the whole punching press of block of metal, and the while also stamps out the convex closure 80 that is used for fixing PCB on its plate face, and itself consumptive material is more, and weight is bigger, and process is also loaded down with trivial details.Fierceness day by day along with market competition; Effectively reduce design cost and become more and more important; Save the important directions that material cost and simplified assembling process become each designer's research, and on original whole back plate design development place hollow out or the design of splicing backboard, reduced cost to a certain extent; But splicing or hollow out backboard intensity descend, and then make being difficult for that fixing pcb board becomes on backboard originally.
Convex closure is to be arranged at the structure that is used for fixing assemblies such as pcb board on the backboard, and convex closure generally protrudes from backboard plate face, and pcb board locks part through screw or other and is fixed on the convex closure, and then avoids PCB directly to contact with backboard plate face and cause short circuit.Existing backboard as shown in Figure 1, the convex closure 80 on this backboard integrated punching when backboard is made takes shape on the backboard, and the position of the convex closure on the backboard 80 is fixed like this, is difficult to adapt to the pcb board of different size; While is for the PCB of different size, and the module backlight of different component count demands, needs die sinking again to make corresponding backboard; Pcb board to different size; Need die sinking to make new backboard, so its versatility is bad, and production cost in this case can be higher.
Summary of the invention
The utility model technical problem to be solved provides a kind of economical with materials, module backlight, backboard and liquid crystal indicator that versatility is good.
The purpose of the utility model realizes through following technical scheme: a kind of module backlight; Comprise backboard, pcb board and be used for pcb board is fixed to the part that locks on the backboard; Said backboard comprises by a plurality of supports forms framework; And be arranged on the bridge formation on the said support, and said support or bridge formation are provided with chute, and the said fixed structure of part bottom it that lock is installed on the said chute.
Preferably, said chute is provided with the part that locks that is used for fixing PCB, and the said part that locks can be arranged on the relevant position on the chute according to the size of PCB.Through to the PCB determining dimensions, be arranged on the relevant position on the chute with locking part, thereby can use a kind of PCB of backboard installation different size of specification.
Preferably, the said part that locks is a convex closure, and the bottom of said convex closure is provided with the fixed structure that itself is installed on the said chute.Convex closure has the effect that locks PCB preferably, and it can avoid the short circuit of PCB.
Preferably, said fixed structure is the screwed hole that the convex closure bottom is provided with.Convex closure can be installed on the backboard through screw, and is easy for installation, and detachable.
Preferably, said screwed hole runs through convex closure.Can only just can realize interfixing of PCB, convex closure and three assemblies of backboard with a screw like this, screw passes PCB, convex closure and backboard, and through nut check, three assemblies is fixed.
Preferably, said fixed structure is the rivet that is wholely set in the convex closure bottom.Riveted way is fairly simple, can use machinery to accomplish simultaneously, and convenient and swift, reliability is high.
Preferably, the said part that locks is independent mushroom head.A mode that locks PCB of pestering is comparatively convenient and swift.
Preferably, the said part that locks is installed on the backboard through screw, and the said part that locks can move on chute.Before the installation of carrying out PCB, can be installed on the backboard locking part in advance, but not lock; Make that locking part can move on chute, like this, when the PCB to various sizes locks; Move to the position of corresponding size with locking part; Lock behind the PCB will locking part and be locked on the backboard, thereby do not need to measure in advance the position, make that the process of installing is more quick.
Preferably, the said part that locks is installed on the backboard and locking through screw or rivet, and the said part that locks is fixed on the said chute.This mode installation accuracy is high.
A kind of backboard, said backboard comprise by a plurality of supports forms framework, and is arranged on the bridge formation on the said support, and said support or bridge formation are provided with and are used to install the chute that locks part.
A kind of liquid crystal indicator, it has comprised as above arbitrary described module backlight.
The utility model is owing to forms frame structure with backboard by a plurality of supports, on framework, is provided for installing the bridge formation of assembly such as PCB, and support and bridge formation can use general profiled member to combine, and manufacturing cost is lower, and has practiced thrift wide variety of materials; Simultaneously; Through on building bridge, chute being set in order to convex closure to be set; Convex closure can be fixed the optional position on chute; Thereby can convex closure be arranged on the relevant position on the chute according to the PCB size, so that backboard can be adapted to have the module backlight or the liquid crystal indicator of the assembly of different pcb board sizes or varying number.
Description of drawings
Fig. 1 is the structure diagram of existing backboard,
Fig. 2 is the structure diagram of the backboard of the utility model embodiment 2,
Fig. 3 is the structure diagram of the bridge formation of the utility model embodiment 2,
Fig. 4 is the structure diagram of a kind of convex closure among the utility model embodiment,
Fig. 5 is the structural representation that the convex closure among the utility model embodiment locks PCB,
Fig. 6 is the structure diagram of the another kind of convex closure of the utility model embodiment,
Fig. 7 is the structural representation that the another kind of convex closure among the utility model embodiment locks PCB,
Fig. 8 is the structure diagram of the third convex closure among the utility model embodiment.
Wherein: 1, backboard, 100, framework, 111, upper bracket, 112, right support, 113, lower carriage, 114, left socle, 115, center bearing bracket, 120, build bridge, 121, chute, 800, convex closure, 810, screwed hole, 811, screw, 820, rivet, 300, PCB.
The specific embodiment
The utility model embodiment provides a kind of liquid crystal indicator, comprises liquid crystal panel and module backlight, and said module backlight bottom is provided with backboard.Backboard comprises the framework of being made up of many supports; Framework is provided with a plurality of bridge formations; Bridge formation can be used for fixing the assembly of PCB and other module backlight, and said support or bridge formation are provided with chute, and the fixed structure of part through its bottom that lock that convex closure etc. are used to lock PCB is installed to said chute.
To this scheme, the utility model further specifies through following preferred embodiment:
The frame-type backboard of present embodiment as shown in Figure 2; Backboard is combined into main frame 100 through a plurality of supports 110; Cooperate corresponding 120 combinations of building bridge to be fixed on the support again, said support comprises end to end upper bracket 111, lower carriage 113, left socle 114, right support 112, forms the big frame of whole back plate; Big frame the inside also is provided with two intermediate supports 115, and the two ends of intermediate support 115 are separately fixed at upper and lower two above the support.Be provided with a plurality of bridge formations on each support and between two supports; Bridge formation 120 is provided with chute 121; Support and build bridge to go up corresponding setting the needed convex closures 800 of assembly such as pcb board are arranged fixedly, in the present embodiment, convex closure 800 be as the convex closure of part existence separately.As shown in Figure 2, the main frame 100 of frame-type backboard is provided with a plurality of bridge formations 120, and bridge formation 120 is provided with chute 121 (being illustrated in figure 3 as the situation that convex closure 800 is set on the bridge formation), and convex closure 800 is installed in the chute 121 as the part of individualism.Can carry out the adjustment of position according to the size needs of PCB, its adjusting range in chute 121, thereby can realize that like this, this backboard of type can be common to multiple module backlight to the locking of the PCB of this kind size.
For the convenience of installing, can in advance convex closure be installed on the said chute through screw, but, convex closure can be slided on chute not with screw lock, to the size of PCB convex closure is slided into corresponding position, again screw is locked after locking PCB.Also can directly pass through fixedly convex closure of screw or rivet, lock PCB again, to reduce operation to the size of PCB.
In the present embodiment, chute can be arranged on the support equally, and then more convex closure installation site is provided, and satisfies the more module backlight of some assemblies.
Certainly, except the use convex closure locks PCB on the backboard, also can use other the similar part that locks, as it is first-class to pester.The mushroom head is made into the part that monomer exists, and can be installed in chute in the same with convex closure can reach locking to different PCB sizes equally.
Like Fig. 4 and the convex closure 800 that is present embodiment as the individual part existence shown in Figure 6; This type of convex closure is not formed on the backboard when backboard is produced; But when needs use convex closure; On the relevant position of backboard 1, convex closure 800 is installed, locate the assemblies such as PCB of various sizes to reach the convex closure 800 of applying in a flexible way.
As shown in Figure 4; Convex closure 800 have one be used to install and fix assemblies such as pcb board screwed hole 810, this screwed hole 810 connects this independent convex closure 800 always, so that independent convex closure 800 can be fixed on the backboard 1 from the below through screw 811; Simultaneously again can be up fixing pcb board; Accordingly, the screwed hole 810 sizable convex closure installing holes that should be provided with on the backboard 1 with said convex closure 800 are chute, so that convex closure 800 can be fixed on the backboard 1.Same; Also can only use a screw fit nut to realize fixing between PCB, convex closure and the backboard; As shown in Figure 5, because screwed hole has connected whole convex closure 800, and then can directly PCB300 be locked on the backboard 1 through a screw 811 attaching nuts 812.
Easy for installation in order to make, the similar structure of rivet can be arranged in the bottom of convex closure as shown in Figure 6, and it is one-body molded to be about to rivet and convex closure, and the end portion of convex closure 800 is the riveted joint form with being connected of backboard 1, and promptly convex closure 800 is riveted on the backboard 1 through rivet 820.Riveted way is with respect to the screw ways of connecting, and it is fast, and can accomplish through machine, improves the efficient of producing.As shown in Figure 7, convex closure 800 is fixed on the backboard 1 through rivet 820, and pcb board 300 is fixed on the convex closure through screw 811 then, accomplishes locking pcb board 300.
For economical with materials, and easy to process, convex closure can be formed by the direct punching press of plate, and is as shown in Figure 8, and convex closure 800 inside are engraved structure, and its integral body is formed by a plate material, and both economical with materials made things convenient for again and made.
Certainly, the shape of the independent convex closure 800 described in the present embodiment is not limited to the tapered cross-section shape shown in the figure, with respect to other shape such as squarely also can reach corresponding use.
In the present embodiment, according to the size of PCB in the module backlight, corresponding convex closure is set on the relevant position again; Simultaneously, according to the pcb board assembly of varying number, corresponding convex closure quantity is set.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (11)
1. module backlight; Comprise backboard, pcb board and be used for pcb board is fixed to the part that locks on the backboard; It is characterized in that said backboard comprises by a plurality of supports forms framework, and is arranged on the bridge formation on the said support; Said support or bridge formation are provided with chute, and the said fixed structure of part bottom it that lock is installed on the said chute.
2. a kind of module backlight as claimed in claim 1 is characterized in that said chute is provided with the part that locks that is used for fixing PCB, and the said part that locks can be arranged on the relevant position on the chute according to the size of PCB.
3. a kind of module backlight as claimed in claim 2 is characterized in that, the said part that locks is a convex closure, and the bottom of said convex closure is provided with the fixed structure that itself is installed on the said chute.
4. a kind of module backlight as claimed in claim 3 is characterized in that, said fixed structure is the screwed hole that the convex closure bottom is provided with.
5. a kind of module backlight as claimed in claim 4 is characterized in that said screwed hole runs through convex closure.
6. a kind of module backlight as claimed in claim 3 is characterized in that, said fixed structure is the rivet that is wholely set in the convex closure bottom.
7. a kind of module backlight as claimed in claim 2 is characterized in that, the said part that locks is independent mushroom head.
8. a kind of module backlight as claimed in claim 2 is characterized in that, the said part that locks is installed on the backboard through screw, and the said part that locks can move on chute.
9. a kind of module backlight as claimed in claim 2 is characterized in that, the said part that locks is installed on the backboard and locking through screw or rivet, and the said part that locks is fixed on the said chute.
10. a backboard is characterized in that, said backboard comprises by a plurality of supports forms framework, and is arranged on the bridge formation on the said support, and said support or bridge formation are provided with and are used to install the chute that locks part.
11. a liquid crystal indicator is characterized in that, it has comprised arbitrary described module backlight like claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204620537U CN202327878U (en) | 2011-11-18 | 2011-11-18 | Backlight module, back panel and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204620537U CN202327878U (en) | 2011-11-18 | 2011-11-18 | Backlight module, back panel and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327878U true CN202327878U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204620537U Expired - Lifetime CN202327878U (en) | 2011-11-18 | 2011-11-18 | Backlight module, back panel and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410477A (en) * | 2011-11-18 | 2012-04-11 | 深圳市华星光电技术有限公司 | Backlight module, back plate and liquid crystal display device |
-
2011
- 2011-11-18 CN CN2011204620537U patent/CN202327878U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410477A (en) * | 2011-11-18 | 2012-04-11 | 深圳市华星光电技术有限公司 | Backlight module, back plate and liquid crystal display device |
| WO2013071653A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Backlight module, back board and liquid crystal display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |