CN204005442U - LED lamp bar, backlight module and liquid crystal indicator - Google Patents
LED lamp bar, backlight module and liquid crystal indicator Download PDFInfo
- Publication number
- CN204005442U CN204005442U CN201420326227.0U CN201420326227U CN204005442U CN 204005442 U CN204005442 U CN 204005442U CN 201420326227 U CN201420326227 U CN 201420326227U CN 204005442 U CN204005442 U CN 204005442U
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- splicing ear
- circuit board
- printed circuit
- groove structure
- led lamp
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Abstract
The utility model relates to Display Technique field, specifically disclose a kind of LED lamp bar, backlight module and liquid crystal indicator, described LED lamp bar comprises printed circuit board and is located at the splicing ear on described printed circuit board, the junction of described printed circuit board and described splicing ear is provided with groove structure, described splicing ear is embedded in described groove structure, and described splicing ear is fixed by scolding tin with the part that described groove structure contacts.LED lamp bar of the present utility model is by being designed to groove structure by the junction of printed circuit board and splicing ear, and in the described groove structure that splicing ear is inlayed, the part that splicing ear contacts with groove structure is fixed by scolding tin, increase widely the Exposure of splicing ear scolding tin and printed circuit board, thereby increase the contact area of splicing ear and printed circuit board, simultaneously, the groove structure of printed circuit board can stop portions thrust, has effectively prevented coming off of splicing ear.
Description
Technical field
The utility model relates to Display Technique field, relates in particular to a kind of LED lamp bar that can prevent that splicing ear from coming off and have backlight module, the liquid crystal indicator of this LED lamp bar.
Background technology
At present, main LED (light emitting diode, the Light-Emitting Diode) lamp that uses in backlight of LCD, LED lamp has two kinds of forms as back light, is respectively: side entrance back structure and downward back photo structure.In side entrance back structure, plurality of LEDs lamp is arranged on a LED lamp bar by series-parallel form, and is connected with external power source by splicing ear (connector), realizes the conducting of LED lamp bar.
In prior art, splicing ear is normally directly fixed on printed circuit board (Printed Circuit Board by scolding tin, PCB) surface, scolding tin is connected with the copper wire in printed circuit board, but, because the contact point of splicing ear and copper wire is less, in the process of outside line and splicing ear grafting, if plug number of times is more, is easy to cause splicing ear to come off from printed circuit board, thereby causes the damage of product.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of LED lamp bar, to overcome the surface that is directly fixed on printed circuit board in prior art due to the splicing ear of LED lamp bar by scolding tin, the problem that the splicing ear causing easily comes off from printed circuit board.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of LED lamp bar, comprise printed circuit board and be located at the splicing ear on described printed circuit board, the junction of described printed circuit board and described splicing ear is provided with groove structure, described splicing ear is embedded in described groove structure, and described splicing ear is fixed by scolding tin with the part that described groove structure contacts.
Preferably, the degree of depth of described groove structure is less than the thickness of described printed circuit board.
Preferably, the bottom surface of described splicing ear and side are all fixed by scolding tin with described groove structure.
Preferably, described printed circuit board is flexible PCB or hard circuit board.
The utility model also provides a kind of backlight module, comprises backlight, and described backlight comprises described LED lamp bar.
The utility model also provides a kind of liquid crystal indicator, comprises display floater and described backlight module.
Preferably, the LED lamp bar in described backlight module is arranged on the side of described display floater.
(3) beneficial effect
LED lamp bar of the present utility model is by being designed to groove structure by the junction of printed circuit board and splicing ear, and in the described groove structure that splicing ear is inlayed, the part that splicing ear contacts with groove structure is fixed by scolding tin, increase widely the Exposure of splicing ear scolding tin and printed circuit board, thereby increase the contact area of splicing ear and printed circuit board, simultaneously, the groove structure of printed circuit board can stop portions thrust, has effectively prevented coming off of splicing ear.This LED lamp bar is rational in infrastructure, easily manufactured, and applicability is strong, is easy to promote the use of.
Brief description of the drawings
Fig. 1 is the top view of the printed circuit board of the LED lamp bar of the utility model embodiment;
Fig. 2 is the schematic diagram of the LED lamp bar of the utility model embodiment while being connected with binding post;
Fig. 3 is the schematic diagram that the LED lamp bar of the utility model embodiment comprises scolding tin part while being connected with binding post.
In figure, 1: printed circuit board; 2:LED lamp; 3: groove structure; 4: splicing ear; 5: metalwork; 6: plug connector; 7 scolding tin.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.In addition,, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
As Figure 1-3, the LED lamp bar of the present embodiment comprises printed circuit board 1 and is located at the splicing ear 4 on printed circuit board 1.
Printed circuit board 1 can be flexible PCB, can be also hard circuit board, and printed circuit board 1 is provided with multiple series-parallel LED lamps 2.
Wherein, hard circuit board (Printed Circuit Board) is called for short " hardboard ", is commonly called as PCB in industry, is the printed circuit board that common rigid insulating materials is made, flexible PCB (Flexible Printed Circuit Board) is called for short " soft board ", in industry, be commonly called as FPC, it is the printed circuit board (PCB) made from flexible insulating substrate (being mainly polyimides or polyester film), have advantages of that many hard circuit boards do not possess, for example: it can free bend, reel, folding, utilize flexible PCB can greatly dwindle the volume of electronic product, be suitable for electronic product to high density, miniaturization, the needs of highly reliable future development, therefore, flexible PCB is in space flight, military, mobile communication, laptop computer, computer peripheral equipment, PDA, on the fields such as digital camera or product, be widely used, simultaneously, flexible PCB also has good thermal diffusivity and solderability and is easy to load, the advantages such as integrated cost is lower.
Splicing ear 4 can be generic connectivity terminal, and it comprises the metalwork 5 and the plug connector 6 that link together, and metalwork 5 is for being connected with the copper wire of printed circuit board 1 by scolding tin, and plug connector 6 is for the outside line of pegging graft.
Printed circuit board 1 is designed with groove structure 3 in the junction of itself and splicing ear 4, the concrete shape of groove structure 3 should be corresponding with the profile of corresponding splicing ear 4, the degree of depth of groove structure 3 is less than the thickness of printed circuit board 1, and a side of groove structure 3 can be connected with a side of printed circuit board 1.
Splicing ear 4 is embedded in groove structure 3, and the metalwork 5 of splicing ear 4 and the bottom surface of plug connector 6 are all fixed by scolding tin with printed circuit board 1, and the side of the side of the metalwork 5 of splicing ear 4 and the groove structure 3 of printed circuit board 1 is fixing by scolding tin 7.This connected mode of the groove structure 3 of splicing ear 4 and printed circuit board 1 can not only increase the Exposure of splicing ear 4 and printed circuit board 1, thereby increase the contact area of splicing ear 4 with printed circuit board 1, also can stop portions thrust, effectively prevent coming off of splicing ear 4.
The utility model also provides a kind of backlight module, and described backlight module comprises backlight, and described backlight comprises above-mentioned LED lamp bar.
The utility model also provides a kind of liquid crystal indicator, and described liquid crystal indicator comprises display floater and above-mentioned backlight module.
Preferably, the LED lamp bar in backlight module is arranged on the side of display floater.
LED lamp bar of the present utility model is by being designed to groove structure by the junction of printed circuit board and splicing ear, and in the described groove structure that splicing ear is inlayed, the part that splicing ear contacts with groove structure is fixed by scolding tin, increase widely the Exposure of splicing ear scolding tin and printed circuit board, thereby increase the contact area of splicing ear and printed circuit board, simultaneously, the groove structure of printed circuit board can stop portions thrust, has effectively prevented coming off of splicing ear.This LED lamp bar is rational in infrastructure, easily manufactured, and applicability is strong, is easy to promote the use of.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the utility model design to be suitable for the various embodiment with various amendments of special-purpose.
Claims (7)
1. a LED lamp bar, comprise printed circuit board and be located at the splicing ear on described printed circuit board, it is characterized in that, the junction of described printed circuit board and described splicing ear is provided with groove structure, described splicing ear is embedded in described groove structure, and described splicing ear is fixed by scolding tin with the part that described groove structure contacts.
2. LED lamp bar according to claim 1, is characterized in that, the degree of depth of described groove structure is less than the thickness of described printed circuit board.
3. LED lamp bar according to claim 2, is characterized in that, the bottom surface of described splicing ear and side are all fixed by scolding tin with described groove structure.
4. LED lamp bar according to claim 1, is characterized in that, described printed circuit board is flexible PCB or hard circuit board.
5. a backlight module, comprises backlight, it is characterized in that, described backlight comprises the arbitrary described LED lamp bar of claim 1-4.
6. a liquid crystal indicator, comprises display floater and backlight module, it is characterized in that, described backlight module is backlight module claimed in claim 5.
7. liquid crystal indicator according to claim 6, the LED lamp bar in described backlight module is arranged on the side of described display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326227.0U CN204005442U (en) | 2014-06-18 | 2014-06-18 | LED lamp bar, backlight module and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326227.0U CN204005442U (en) | 2014-06-18 | 2014-06-18 | LED lamp bar, backlight module and liquid crystal indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005442U true CN204005442U (en) | 2014-12-10 |
Family
ID=52045443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420326227.0U Active CN204005442U (en) | 2014-06-18 | 2014-06-18 | LED lamp bar, backlight module and liquid crystal indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204005442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703521A (en) * | 2019-10-29 | 2020-01-17 | 武汉华星光电技术有限公司 | Liquid crystal display panel |
-
2014
- 2014-06-18 CN CN201420326227.0U patent/CN204005442U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703521A (en) * | 2019-10-29 | 2020-01-17 | 武汉华星光电技术有限公司 | Liquid crystal display panel |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |