CN202694713U

CN202694713U - Sealing structure of light-emitting diode (LED) billboard

Info

Publication number: CN202694713U
Application number: CN 201220353209
Authority: CN
Inventors: 罗兴煌; 王刚; 都涛
Original assignee: Dongguan Simoire Electronic Science & Technology Co Ltd
Current assignee: SICHUAN SIMOIRE SCIENCE & TECHNOLOGY CO., LTD.
Priority date: 2012-07-19
Filing date: 2012-07-19
Publication date: 2013-01-23
Anticipated expiration: 2022-07-19

Abstract

A sealing structure of a light-emitting diode (LED) billboard comprises a printed circuit board (PCB), wherein the PCB is arranged on a side surface of a triangular-prism-shaped two-surface-turnover aluminum section bar; a plurality of LED lamps and a plurality of independent lamp caps for fixedly covering the corresponding LED lamps are uniformly distributed on the PCB; the other two side surfaces, which are intersected with each other, of the two-surface-turnover aluminum section bar extend to form extending edges along the included angle opening direction; and a sealing layer is filled in space enclosed by the extending edges, the PCB and the independent lamp caps and is made of silica gel, three-proofing lacquer or a nano-coating. Because the sealing layer is filled in the whole surface of the sealing structure, the problem that the LED billboard is wetted by rainwater when used outdoors is effectively solved, the reliability of the billboard is improved, the service life of the billboard is prolonged, and the maintenance frequency is reduced. Moreover, the filling quantity can be accurately controlled, the automatic production is realized, the machining cost is greatly reduced, and the production efficiency is improved.

Description

A kind of LED billboard hermetically-sealed construction

Technical field

The utility model relates to a kind of billboard hermetically-sealed construction, and LED billboard hermetically-sealed construction is turned on the two sides that relates in particular to a kind of open air.

Background technology

Billboard is turned on outdoor two sides commonly used at present, for preventing that rainwater from invading Lou circuit is caused damage, generally all between monoblock type lamp holder and pcb board, be filled with encapsulant, but encapsulant is in filling process, easily migration in the slit between pcb board and lamp holder, affect quality, simultaneously, therefore because have a plurality of positions that independently seal, when phenomenon occurring invading Lou, the investigation of invading leak source is bothered and inefficiency very much, in the production run, often adopt by the limit, the filling mode of seal point one by one, filled one by one the seal point on one side after, after the encapsulants such as needs solidify, just can turn over and continue to fill the seal point of another side, can't realize automated production, not only inefficiency, and quality is difficult to control.

The utility model content

For solving the problem on the above-mentioned prior art, a kind of simple in structure, dependable performance is provided in the utility model, is convenient to the LED billboard hermetically-sealed construction of automated production.

The utility model is realized in the following way:

A kind of LED billboard hermetically-sealed construction, comprise that being arranged at triangular prism shaped two sides turns over pcb board on aluminium section bar one side, be evenly distributed with a plurality of LED lamps on the described pcb board, and the solid independent lamp holder on each LED lamp of cover, described two sides is turned over aluminium section bar and is provided with extension edge along the extension of angle opening direction in two crossing sides in addition, is filled with sealant in the space that described extension edge, pcb board and independent lamp holder surround.

Further, described sealant is silica gel.

Further, described sealant is three anti-lacquers.

Further, described sealant is nano coating.

The utility model is by adopting whole to fill sealant, effectively stop to occur when the LED billboard uses out of doors the problem that rainwater soaks leakage, improve reliability and the serviceable life of billboard, reduce frequency of maintenance, simultaneously, can accurately control loading, realize high-efficient automatic production, significantly reduce processing cost, enhance productivity.

Description of drawings

Accompanying drawing 1 is looked synoptic diagram for master of the present utility model;

Accompanying drawing 2 is A-A place cross-sectional schematic in the accompanying drawing 1.

Shown in the figure: 1-turns over aluminium section bar in the two sides; The 11-extension edge; The 2-PCB plate; 3-independence lamp holder; The 4-sealant; The 5-cover.

Embodiment

For the ease of those skilled in the art's understanding, to the utility model and effect and the advantage that can produce, cooperate accompanying drawing below in conjunction with accompanying drawing, the preferred embodiment of lifting this case is described in detail as follows.

A kind of LED billboard hermetically-sealed construction, comprise that being arranged at triangular prism shaped two sides turns over pcb board 2 on aluminium section bar 1 one sides, be evenly distributed with a plurality of LED lamps on the described pcb board 2, and the solid independent lamp holder (3) on each LED lamp of cover, described two sides is turned over aluminium section bar 1 and is provided with extension edge 11 along the extension of angle opening direction in two crossing sides in addition, is filled with sealant 4 in the space that described extension edge 11, pcb board 2 and independent lamp holder 3 surround.

Described sealant 4 is silica gel, three anti-lacquer or nano coatings.

Add man-hour, as follows:

First pcb board 2 being installed on triangular prism shaped two sides turns on aluminium section bar 1 one sides;

Then with independent lamp holder 3 location and installation on pcb board 2, make the re-entrant portion cover cap of independent lamp holder 3 on the LED of pcb board 2 lamp;

Pass through at last automation equipment, fill the sealant 4 that is formed by sealed material in the space that described extension edge 11, pcb board 2 and independent lamp holder 3 are surrounded, such as silica gel, three anti-lacquer or nano coatings, this automation equipment possesses one or more shower nozzle, can be as required, set spraying consumption and spraying rate, quantitatively sealed material is sprayed in the space that is surrounded by extension edge 11, pcb board 2 and independent lamp holder 3 evenly.

After layer 4 curing to be sealed are stable, fixed cap clad can lid 5 on sealant 4.

The content of mentioning in above-described embodiment is not to be to restriction of the present utility model, and without departing from the concept of the premise utility, any apparent replacement is all within protection domain of the present utility model.

Claims

1. LED billboard hermetically-sealed construction, comprise that being arranged at triangular prism shaped two sides turns over pcb board (2) on aluminium section bar (1) one side, be evenly distributed with a plurality of LED lamps on the described pcb board (2), and the solid independent lamp holder (3) on each LED lamp of cover, it is characterized in that: described two sides is turned over aluminium section bar (1) and is provided with extension edge (11) along the extension of angle opening direction in two crossing sides in addition, is filled with sealant (4) in the space that described extension edge (11), pcb board (2) and independent lamp holder (3) surround.

2. a kind of LED billboard hermetically-sealed construction according to claim 1, it is characterized in that: described sealant (4) is silica gel.

3. a kind of LED billboard hermetically-sealed construction according to claim 1 is characterized in that: described sealant (4) is three anti-lacquers.

4. a kind of LED billboard hermetically-sealed construction according to claim 1, it is characterized in that: described sealant (4) is nano coating.