CN2508332Y - LED display - Google Patents
LED display Download PDFInfo
- Publication number
- CN2508332Y CN2508332Y CN 01263644 CN01263644U CN2508332Y CN 2508332 Y CN2508332 Y CN 2508332Y CN 01263644 CN01263644 CN 01263644 CN 01263644 U CN01263644 U CN 01263644U CN 2508332 Y CN2508332 Y CN 2508332Y
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- emitting diode
- circuit board
- pcb
- conductor
- Prior art date
- 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 - Fee Related
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Abstract
The utility model relates to a light-emitting diode device which can improve the heat radiation efficiency. The utility model comprises a printed circuit board, at least a conductive part spliced in the through hole of the printed circuit board and provided with a concave arc shape at one end, and at least a light-emitting diode crystal grain correspondingly fixed on the bottom part of the concave arc shape reflection surface of each conductive part. In addition, the printed circuit board, the conductive part and the light-emitting diode crystal grain are coated with epoxy resin, particularly the other end of the conductive part is stretched outside the covering of the epoxy resin, therefore, the heat radiation efficiency and the brightness of the light-emitting diode are improved.
Description
[technical field]
The utility model relates to a kind of light emitting diode indicator.
[background technology]
As shown in Figure 1, be the existing a kind of light emitting diode indicator 1 that can see on the market, be commonly called as light emitting diode (LED LAMP).It has two disjunct metal supports 10,11, its medium-height trestle 10 tops are provided with a bowl-shape reflecting surface 15, one LED crystal particle 12 is placed on bowl-shape reflecting surface 15 bottoms, and is connected to another support 11 via lead 13, and then coats with epoxy resin 14.Therefore, when with the synthetic LED display panel of this component groups, must be plugged in singly on the large substrate, not only plug-in unit is time-consuming takes a lot of work, and light emitting diode is difficult to be fixed on same direction, causes the brightness disproportionation of display frame easily.
As shown in Figure 2, it is existing another kind of light emitting diode indicator 2, be commonly called as dot matrix light emitting diode indicator (DOT MATRIX LED DISPLAY), it has the plastics external member 25 that a printed circuit board (PCB) 20 and is provided with a plurality of bowl-shape reflectings surface 24, described printed circuit board (PCB) 20 is provided with a plurality of LED crystal particle 22, and each is connected with circuit junction on the printed circuit board (PCB) via a lead 23, and combine around to be correspondences be around in each the described LED crystal particle 32 of the described bowl-shape reflecting surface 24 on the described plastics external member 25 and with printed circuit board (PCB) 20, then, add full space therebetween with solid-state epoxy resin 21.Though this kind light emitting diode indicator 2 is easy to be combined into display panel, but because its bowl-shape reflecting surface is plastic material (preventing and the printed circuit board (PCB) short circuit), reflecting effect is the bowl-shape reflecting surface 15 of the metal of light emitting diode 1 as described above not, and radiating effect is not good, the easy drive current that influences the life-span of LED crystal particle and can't increase LED crystal particle makes that its luminosity is limited.
As shown in Figure 3, it is existing another light emitting diode indicator 3, it has a printed circuit board (PCB) 34, in a plurality of through holes 35 that are plugged on described printed circuit board (PCB) 34, and an end extends to the upper surface of described printed circuit board (PCB) 34 and is formed with the electric-conductor 36 of a concave arc shape reflecting surface 37, and a plurality of LED crystal particle 30 that anchor at concave arc shape reflecting surface 37 bottoms of each described electric-conductor 36 respectively, and the other end of each described electric-conductor 36 is to extend to the lower surface below of described printed circuit board (PCB) 34 and form one to enlarge end face, and each described electric-conductor 36 be can be positioned on each described through hole 35.And described printed circuit board (PCB) 34, described electric-conductor 36 and described LED crystal particle 30 are made a light emitting diode indicator finished product by solid-state epoxy resin 33 packaged being coated with.
Described light emitting diode indicator 3 can improve aforementioned two kinds of existing light emitting diode indicators 1,2 plug-in units are time-consuming takes a lot of work, being difficult for fixed-direction causes brightness disproportionation and nonmetal reflecting surface to produce problems such as reflecting effect is not good, but, because it also is wholely to be coated by described epoxy resin 33, so also can being closed in inside, the heat that is produced when it is luminous is difficult for shedding, cause heat effectively to be shed and accumulate in the electric-conductor 36, therefore, damage because of overheated for avoiding LED crystal particle 30, so the electric current of driven for emitting lights diode crystal particle 30 can't effectively be increased, and makes the luminosity of light emitting diode indicator 3 be restricted.
[utility model content]
The purpose of this utility model is to provide a kind of luminosity of light emitting diode indicator and light emitting diode indicator of radiating efficiency of improving.
The utility model includes a printed circuit board (PCB), at least onely is plugged in the described through-holes of printed circuit boards and an end is formed with the electric-conductor of a concave arc shape reflecting surface, and at least one correspondence anchors at the LED crystal particle of the concave arc shape reflecting surface bottom of each described electric-conductor, and described printed circuit board (PCB), described electric-conductor and described LED crystal particle are coated by solid-state epoxy resin, and the other end of described electric-conductor is to extend to outside the coating of described epoxy resin.Whereby, can reach the radiating efficiency of raising light emitting diode indicator and the purpose of luminosity.
[description of drawings]
Below by preferred embodiment and accompanying drawing the light emitting diode indicator that improves radiating efficiency of the present utility model is elaborated, in the accompanying drawing:
Fig. 1 is the stereographic map of existing a kind of light emitting diode;
Fig. 2 is the three-dimensional cutaway view of existing another kind of light emitting diode indicator;
Fig. 3 is the three-dimensional cutaway view of existing another light emitting diode indicator;
Fig. 4 is the three-dimensional cutaway view that improves the light emitting diode indicator of radiating efficiency of the present utility model.
[embodiment]
As shown in Figure 4, be the embodiment that the utility model can improve the light emitting diode indicator 4 of radiating efficiency, it includes a printed circuit board (PCB) 44, several electric-conductors 46 and several LED crystal particle 40.
Provided a plurality of circuit through holes 45 on the described printed circuit board (PCB) 44, the wall of each described through hole 45 be coated with one with printed circuit board (PCB) 44 on the conductive layer 48 that connects of circuit.
Described electric-conductor 46, its correspondence are arranged in each described through hole 45 of described printed circuit board (PCB) 44, and one end 461 extends to the upper surface place of described printed circuit board (PCB) 44 and is formed with a concave arc shape reflecting surface 47.
Described LED crystal particle 40 is concave arc shape reflecting surface 47 bottoms that anchor at described each described electric-conductor 46 individually, and one electrode and corresponding electric-conductor 46 connect, and another electrode then is connected with circuit junction 42 on the printed circuit board (PCB) by a lead 41.
And, described printed circuit board (PCB) 44, described electric-conductor 46, the concave arc shape reflecting surface 47 of electric-conductor 46 particularly, and the described LED crystal particle 40 that places concave arc shape reflecting surface 47 bottoms of described electric-conductor 46, made a light emitting diode indicator finished product by solid-state epoxy resin 43 packaged being coated with.And extend downward described printed circuit board (PCB) 44 belows in the principal feature of the present utility model described through hole 45 that to be the other end 462 of described electric-conductor 46 be by described printed circuit board (PCB) 44 and protrude from the coating outside of described epoxy resin 43, and described end 462 has the end that a more described through hole 45 apertures enlarge.
Whereby, described light emitting diode indicator 4 can dispel the heat effectively and increases the area of dissipation of light emitting diode indicator 4 to the external world via the other end 462 of described electric-conductor 46 and by the metal heat-conducting material of electric-conductor 46, and can effectively improve the radiating efficiency of light emitting diode indicator 4, make the described LED crystal particle 40 on the light emitting diode indicator 4 can under the situation that heat is effectively derived, accept bigger drive current, and increase its luminosity.
And, the utility model not only can improve use that light emitting diode 1 forms that existing plug-in unit that a kind of light emitting diode indicator causes is time-consumingly taken a lot of work, direction is difficult for the shortcoming of fixing, and the problem that described existing another kind of light emitting diode indicator 2 nonmetal reflecting surface reflecting effects are not good and heat radiation is difficult for, also solved existing another light emitting diode indicator 3 because of being caused the condition of poor of dispelling the heat by epoxy resin 33 whole coatings, and reach assembling easily, reflecting effect is good and improve effect such as radiating efficiency.
Conclude described, the light emitting diode indicator 4 that the utility model can improve radiating efficiency extends to epoxy resin 43 outsides that coat described printed circuit board (PCB) 44 and is not coated by described epoxy resin 43 by the other end 462 of the electric-conductor 46 that makes described carrying LED crystal particle 40, with as the pipelines that will derive by the described LED crystal particle 40 luminous heats that produced in the concave arc shape reflecting surface 47 that is formed on described electric-conductor 46, make heat effectively be directed to extraneous and unlikely electric-conductor 46 inside that accumulate in, and the drive current of LED crystal particle 40 can be increased and improve the luminosity of described light emitting diode indicator 2.
Claims (2)
1, a kind of light emitting diode indicator is characterized in that it includes:
One printed circuit board (PCB) has at least one through hole on it;
At least one electric-conductor, it is plugged in each described through hole of described printed circuit board (PCB), and the one end is formed with a concave arc shape reflecting surface on a surface of described printed circuit board (PCB);
At least one LED crystal particle, its correspondence anchor at the concave arc shape reflecting surface bottom of described each described electric-conductor; And
One epoxy resin coats described printed circuit board (PCB), described electric-conductor and described LED crystal particle, and the other end of described electric-conductor is the coating outside that is extended to described epoxy resin by another surface of described printed circuit board (PCB).
2, light emitting diode indicator as claimed in claim 1 is characterized in that: the other end of described electric-conductor has the end that more described through-holes of printed circuit boards aperture enlarges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263644 CN2508332Y (en) | 2001-09-18 | 2001-09-18 | LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263644 CN2508332Y (en) | 2001-09-18 | 2001-09-18 | LED display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508332Y true CN2508332Y (en) | 2002-08-28 |
Family
ID=33671190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263644 Expired - Fee Related CN2508332Y (en) | 2001-09-18 | 2001-09-18 | LED display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508332Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452448C (en) * | 2003-02-28 | 2009-01-14 | 株式会社西铁城电子 | Light emitting element and light emitting device with the light emitting element and method for manufacturing the light emitting element |
-
2001
- 2001-09-18 CN CN 01263644 patent/CN2508332Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452448C (en) * | 2003-02-28 | 2009-01-14 | 株式会社西铁城电子 | Light emitting element and light emitting device with the light emitting element and method for manufacturing the light emitting element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |