CN210805061U - LED digital display screen structure - Google Patents
LED digital display screen structure Download PDFInfo
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- CN210805061U CN210805061U CN201921851269.5U CN201921851269U CN210805061U CN 210805061 U CN210805061 U CN 210805061U CN 201921851269 U CN201921851269 U CN 201921851269U CN 210805061 U CN210805061 U CN 210805061U
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- glue
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Abstract
The utility model discloses a LED digital display screen structure, include digital display screen casing and be fixed in the inside PCB board that is used for digital display that has of digital display screen casing, the welding has the LED wafer on the PCB board, is having the welding LED wafer one side through spouting the machine of glue right PCB board surface coating glue layer, so that glue layer evenly coats and is in the surface and the cover of PCB board the LED wafer reaches LED wafer leaks the metal conductive welding wire outward, treats that the PCB board behind the spraying glue is fixed after the oven toasts the solidification install in the digital display screen casing, digital display screen casing surface has the diffusion barrier. The utility model discloses an adopt automatic glue-pouring machine to carry out even spraying glue layer to the PCB board surface of welding LED wafer one side, the PCB board behind the spraying glue toasts the solidification rear surface through the oven and can form the one deck protective layer, and it can effectively leak metal welding wire parcel outside LED wafer and get up, has just so played the guard action to the wafer.
Description
Technical Field
The utility model relates to a LED digital display screen technical field, concretely relates to LED digital display screen structure.
Background
At present, due to the fact that an LED wafer bonded on a PCB is small in size, and a metal conductive welding wire is exposed on the surface of the LED wafer, the LED wafer is easy to damage under the condition that no protective measures are taken. The traditional LED digital display screen adopts an epoxy glue filling process in the production process, the glue usage amount is large, the baking time is long, the glue can dry and shrink in the baking process, and the product is deformed after being cooled to influence the product quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a LED digital display screen structure, it can effective reduction in production cost, and can promote the product quality and prevent the deformation of product in process of production.
In order to realize the technical purpose, the utility model discloses a scheme is: the utility model provides a LED digital display screen structure, includes digital display screen casing and is fixed in digital display screen casing inside has the PCB board that is used for digital demonstration, the welding has the LED wafer on the PCB board, and is having the welding LED wafer one side through spouting the machine of glue right PCB board surface coating glue layer, so that glue layer uniform coating is in the surface of PCB board and cover the LED wafer reaches LED wafer leaks the metal conducting wire outward, treats PCB board behind the spraying glue and toasts solidification back fixed install in the digital display screen casing, digital display screen casing surface subsides have the diffusion barrier. The utility model adopts the automatic glue-pouring machine to evenly spray the glue layer on the surface of the PCB on one side of the welding LED wafer, the surface of the PCB sprayed with the glue can form a protective layer after being baked and solidified by the oven, and the PCB can effectively wrap the LED wafer and the metal welding wires leaking outside the LED wafer, thus playing the role of protecting the wafer; for traditional embedment epoxy glue, the use cost that has obviously reduced glue has reduced some links of production, the production progress of LED digital product has been accelerated, the material cost is saved, artifical use cost has also been practiced thrift from it, also can be fine control in the aspect of the quality, improve the LED digital product after spouting the gluey mode and only need toast the PCB board, and need not toast the digital display screen casing yet, will guarantee like this that whole LED digital display screen is difficult for producing deformation (the digital display screen casing is the plastic casing, very easily produce deformation after toasting).
Preferably, the PCB and the digital display screen shell are fixedly assembled through hot pressing or stamping. In order to improve the stability of the LED digital display screen, the PCB and the digital display screen shell are fixedly assembled in a hot pressing or stamping mode, and the fixing effect is enhanced.
Preferably, the PCB is further provided with a positioning hole, the digital display screen shell is provided with a positioning column, and the PCB is riveted and fixed with the positioning column on the bottom surface of the digital display screen shell in a punching or hot pressing mode through the positioning hole. In order to improve the whole assembly stability of the LED digital display screen product, the structure assembled by matching the positioning column and the positioning hole can ensure the high precision of the assembly size and avoid the risk of displacement of the PCB board in the stamping or hot-pressing process of the positioning column.
Preferably, the diameter of the positioning column is smaller than that of the positioning hole. In order to improve the assembly efficiency of the LED digital product, the diameter of the positioning column is smaller than that of the positioning hole.
Preferably, the glue sprayer is a programmable automatic glue sprayer. The PCB board overall dimension that uses automatic glue sprayer able to programme can scan sprays the glue volume to the PCB board is automatic, spraying that just can be even quick in the PCB surface, and automatic glue sprayer can adopt the singlechip to control.
Preferably, the digital display screen shell is a plastic shell. In order to reduce the weight of the whole LED digital display screen and ensure the use safety of a user, the digital display screen shell is a plastic shell.
The utility model adopts the automatic glue-pouring machine to evenly spray the glue layer on the surface of the PCB on one side of the welding LED wafer, the surface of the PCB sprayed with the glue can form a protective layer after being baked and solidified by the oven, and the PCB can effectively wrap the LED wafer and the metal welding wires leaking outside the LED wafer, thus playing the role of protecting the wafer; compared with the traditional encapsulating epoxy glue, the use cost of the glue is obviously reduced, part of links of production are reduced, the production progress of the LED digital product is accelerated, the material cost is saved, the artificial use cost is saved, the quality can be well controlled, the improvement of the LED digital product after the glue spraying mode only needs to bake the PCB, the digital display screen shell does not need to be baked, and the whole LED digital display screen is ensured to be not easy to deform.
Drawings
Fig. 1 is a schematic structural diagram of a digital display screen casing of the present invention;
FIG. 2 is a schematic diagram of the PCB structure of the present invention;
FIG. 3 is a schematic structural view of a glue layer sprayed on a PCB board of the present invention;
fig. 4 is a schematic view of the assembly section of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the utility model discloses a digital display screen structure of LED of best embodiment, include digital display screen casing 1 and be fixed in digital display screen casing 1 is inside to have PCB board 2 that is used for digital demonstration, the welding has LED wafer 3 on PCB board 2, the welding has the glue-spraying machine 5 of passing through of LED wafer 3 one side is right PCB board 2 coats glue layer 4 on the surface, so that glue layer 4 evenly coats the coating is in PCB board 2's surface and cover LED wafer 3 reaches LED wafer 3 leaks the electrically conductive welding wire of metal, treats PCB board 2 after the spraying glue and toasts the solidification back fix install in digital display screen casing 1, 1 surface coating of digital display screen casing has the diffusion barrier. The utility model adopts the automatic glue-pouring machine to evenly spray the glue layer on the surface of the PCB on one side of the welding LED wafer, the surface of the PCB sprayed with the glue can form a protective layer after being baked and solidified by the oven, and the PCB can effectively wrap the LED wafer and the metal welding wires leaking outside the LED wafer, thus playing the role of protecting the wafer; for traditional embedment epoxy glue, the use cost that has obviously reduced glue has reduced some links of production, the production progress of LED digital product has been accelerated, the material cost is saved, artifical use cost has also been practiced thrift from it, also can be fine control in the aspect of the quality, improve the LED digital product after spouting the gluey mode and only need toast the PCB board, and need not toast the digital display screen casing yet, will guarantee like this that whole LED digital display screen is difficult for producing deformation (the digital display screen casing is the plastic casing, very easily produce deformation after toasting).
Preferably, the PCB 2 and the digital display screen housing 1 are fixedly assembled by hot pressing or stamping. In order to improve the stability of the LED digital display screen, the PCB and the digital display screen shell are fixedly assembled in a hot pressing or stamping mode, and the fixing effect is enhanced.
Preferably, the PCB 2 is further provided with a positioning hole 7, the digital display screen shell 1 is provided with a positioning column 6, and the PCB 2 is riveted and fixed with the positioning column 6 on the bottom surface of the digital display screen shell 1 through the positioning hole 7 in a punching or hot pressing manner. In order to improve the whole assembly stability of the LED digital display screen product, the structure assembled by matching the positioning column and the positioning hole can ensure the high precision of the assembly size and avoid the risk of displacement of the PCB board in the stamping or hot-pressing process of the positioning column.
Preferably, the diameter of the positioning column 6 is smaller than that of the positioning hole 7. In order to improve the assembly efficiency of the LED digital product, the diameter of the positioning column is smaller than that of the positioning hole.
Preferably, the glue sprayer 5 is a programmable automatic glue sprayer. The PCB board overall dimension that uses automatic glue sprayer able to programme can scan sprays the glue volume to the PCB board is automatic, spraying that just can be even quick in the PCB surface, and automatic glue sprayer can adopt the singlechip to control.
Preferably, the digital display screen housing 1 is a plastic housing. In order to reduce the weight of the whole LED digital display screen and ensure the use safety of a user, the digital display screen shell is a plastic shell.
The utility model adopts the automatic glue-pouring machine to evenly spray the glue layer on the surface of the PCB on one side of the welding LED wafer, the surface of the PCB sprayed with the glue can form a protective layer after being baked and solidified by the oven, and the PCB can effectively wrap the LED wafer and the metal welding wires leaking outside the LED wafer, thus playing the role of protecting the wafer; compared with the traditional encapsulating epoxy glue, the use cost of the glue is obviously reduced, part of links of production are reduced, the production progress of the LED digital product is accelerated, the material cost is saved, the artificial use cost is saved, the quality can be well controlled, the improvement of the LED digital product after the glue spraying mode only needs to bake the PCB, the digital display screen shell does not need to be baked, and the whole LED digital display screen is ensured to be not easy to deform.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (6)
1. The utility model provides a digital display screen structure of LED, includes digital display screen casing and is fixed in the inside PCB board that has and is used for digital demonstration of digital display screen casing, its characterized in that: the LED wafer is welded on the PCB, the LED wafer is welded on one side of the PCB, the glue sprayer is used for spraying glue on the surface of the PCB, so that the glue layer is uniformly coated on the surface of the PCB and covers the LED wafer and the metal conductive welding wire is leaked outside the LED wafer, the PCB after being sprayed with the glue is baked and solidified by an oven and then is fixedly arranged in the digital display screen shell, and the diffusion film is pasted on the outer surface of the digital display screen shell.
2. The LED digital display screen structure of claim 1, wherein: the PCB and the digital display screen shell are fixedly assembled through hot pressing or punching.
3. The LED digital display screen structure of claim 1, wherein: the PCB is further provided with a positioning hole, the digital display screen shell is provided with a positioning column, and the PCB is riveted and fixed with the positioning column on the bottom surface of the digital display screen shell in a punching or hot pressing mode through the positioning hole.
4. The LED digital display screen structure of claim 3, wherein: the diameter of the positioning column is smaller than that of the positioning hole.
5. The LED digital display screen structure according to any one of claims 1 to 4, wherein: the glue sprayer is a programmable automatic glue sprayer.
6. The LED digital display screen structure of claim 5, wherein: the digital display screen shell is a plastic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921851269.5U CN210805061U (en) | 2019-10-29 | 2019-10-29 | LED digital display screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921851269.5U CN210805061U (en) | 2019-10-29 | 2019-10-29 | LED digital display screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210805061U true CN210805061U (en) | 2020-06-19 |
Family
ID=71228142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921851269.5U Active CN210805061U (en) | 2019-10-29 | 2019-10-29 | LED digital display screen structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210805061U (en) |
-
2019
- 2019-10-29 CN CN201921851269.5U patent/CN210805061U/en active Active
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