CN102314812B - LED (Light-Emitting Diode) display screen - Google Patents
LED (Light-Emitting Diode) display screen Download PDFInfo
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- CN102314812B CN102314812B CN201110249137.7A CN201110249137A CN102314812B CN 102314812 B CN102314812 B CN 102314812B CN 201110249137 A CN201110249137 A CN 201110249137A CN 102314812 B CN102314812 B CN 102314812B
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- protecting seat
- emitting diode
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- circuit board
- light emitting
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Abstract
The invention relates to an LED (Light-Emitting Diode) display screen, which comprises a plurality of light-source modules, wherein the light-source modules are spliced together, each light-source module comprises an LED module, the LED module comprises a circuit board and a plurality of LEDs which are installed on the circuit board, each light-source module also comprises a protecting seat for installing the LED module, the protecting seat comprises a soleplate and a lateral wall which extends in the same direction with the circumferential edge of the soleplate, the LED module is installed on the soleplate, a glue-pouring space is formed between the circuit board of the LED module and the lateral wall of the protecting seat, casting glue is filled in the glue-pouring space to form a casting-glue layer, and the LEDs of the LED module are embedded in the casting-glue layer. The LED modules of the LED display screen are installed on the protecting seats, and the casting glue is filled in the glue-pouring spaces between the circuit boards and the lateral walls of the protecting seats, so that the protection level of each light-source module reaches more than IP65.
Description
Technical field
The present invention relates to a kind of LED lighting device, particularly a kind of LED display.
Background technology
LED (light emitting diode) is high with luminescence efficiency, long service life, feature safe and reliable and environmental protection and energy saving are paid attention to widely.LED display is as a kind of important means of Information Communication, become the sign of urban information modernization construction, constantly perfect along with socioeconomic continuous progress and LED display technique, people will more and more go deep into the understanding of LED display, and its application will be more and more wider.
LED display industry is all to complete assembling by a plurality of module connecting methods at present, and all carry out after encapsulating in the front of each module, and then a plurality of modules splice on a casing, and the reverse side of this module can be exposed to outside.When ambient humidity is too high, or when difference variation is larger, the globule easily congeals on the reverse side of the pcb board of module, LED lamp base is oxidized, to product, normal operation is affected, the high energy of the degree of protection of this LED display reaches the degree of protection of IP54, can not meet outdoor rugged environment and use.
Summary of the invention
In view of this, be necessary to provide a kind of LED display of high-protection level.
LED display of the present invention is achieved in that a kind of LED display, it comprises the some light source modules that are stitched together, each light source module comprises a light emitting diode module, described light emitting diode module comprises a circuit board and is installed on the some LED on described circuit board, each light source module also comprises the protecting seat of installing for described light emitting diode module, described protecting seat comprises a base plate and the sidewall being extended in the same way by the periphery of described base plate, described light emitting diode module is installed on described base plate, the circuit board of described light emitting diode module and the sidewall of described protecting seat form an encapsulating space, in described encapsulating space, fill casting glue to form an embedding glue-line, the LED of described light emitting diode module is embedded in embedding glue-line.
The light emitting diode module of described LED display is installed on a protecting seat, and is filled in the encapsulating space between circuit board and the sidewall of described protecting seat by casting glue, makes light source module reach degree of protection more than IP65.
Accompanying drawing explanation
Fig. 1 is the three-dimensional assembly diagram of light source module of the LED display of one embodiment of the invention.
Fig. 2 is the enlarged drawing at the circle A place of Fig. 1.
Fig. 3 is the three-dimensional exploded view of another angle of Fig. 1.
Fig. 4 is the enlarged drawing at the circle B place of Fig. 3.
Fig. 5 is the vertical view of Fig. 1.
Fig. 6 is the cutaway view Amplified image along VI-VI line of Fig. 5.
Fig. 7 is the cutaway view Amplified image along VII-VII line of Fig. 5.
Fig. 8 is the inversion figure of another angle of Fig. 1.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1 and Fig. 2, the LED of one embodiment of the invention (light emitting diode) display screen comprises the some light source modules 100 that are stitched together.Each light source module 100 is strip structure.Each light source module 100 comprises a protecting seat 10 and is installed on the light emitting diode module 30 on this protecting seat 10.
Please refer to Fig. 3 to Fig. 7, the connector 34 that described light emitting diode module 30 comprises a circuit board 31, is installed on the some LED 32 on described circuit board 31 and is electrically connected with described circuit board 31.When described light emitting diode module 30 is installed on described protecting seat 10, described circuit board 31 forms an encapsulating space 33 with the periphery of described protecting seat 10.The interior filling casting glue in described encapsulating space 33 is to form an embedding glue-line 36.The LED 32 of described light emitting diode module 30 is embedded in embedding glue-line 36.In the present embodiment, the end face of described LED 32 is concordant with the end face of described embedding glue-line 36.The bottom surface of the described circuit board 31 some chips (IC) 37 that are sticked.Between described chip 37 and the bottom of described protecting seat 10, be folded with some heat-conducting silica gel sheets 38.
Described protecting seat 10 is one-body molded by the good material of the heat conductivilitys such as aluminium alloy, kirsite, iron, steel, copper.In the present embodiment, described protecting seat 10 aluminium alloy material die casts, in other embodiments, described protecting seat 10 can process by numerical control machining center.In the present embodiment, described protecting seat 10 comprises a base plate 11, four sidewalls 12, the some heating columns 13 that extended by this base plate 11 that by described base plate 11 peripheries edges, perpendicular to base plate 11 directions, are extended in the same way and the some erection columns 16 that extended by this base plate 11.The bearing of trend of described heating column 13 and erection column 16 is identical with the bearing of trend of described sidewall 12.Each heating column 13 offers a through hole 14.This through hole 14 connects the base plate 11 of described heating column 13 and described protecting seat 10.The height of described heating column 13 is greater than the height of described erection column 16.The top of described heating column 13 is concordant with the top of the sidewall 12 of described protecting seat 10.The end face of described embedding glue-line 36 is concordant with the top of the sidewall 12 of described protecting seat 10.When described light emitting diode module 30 is installed on described protecting seat 10, described circuit board 31 forms described encapsulating space 33 with the sidewall 12 of described protecting seat 10.Heat-conducting silica gel sheet 38 described in sandwiched between described chip 37 and the base plate 11 of described protecting seat 10.
A perforation 15 is offered at middle part on described protecting seat 10 length directions, so that described connector 34 is electrically connected through this perforation 15 and described circuit board 31.In the present embodiment, described perforation 15 is square opening.The bottom surface of the base plate 11 of described protecting seat 10 is outward extended with threaded column 39, for the connection of whole LED display.
On the circuit board 31 of described light emitting diode module 30, offer some mounting holes 35.Described mounting hole 35 is between described LED 32, and corresponding one by one with the heating column 13 of described protecting seat 10.The aperture of described mounting hole 35 is slightly larger than the external diameter of described heating column 13, so that described heating column 13 can pass described mounting hole 35.
In the installation process of described light source module 100, a heat-conducting silica gel sheet 38 (as shown in Figure 6) is first sticked on the base plate 11 of described protecting seat 10.Then; the mounting hole 35 of the circuit board 31 of described light emitting diode module 30 is corresponding with the heating column 13 of described protecting seat 10; circuit board 31 is installed in protecting seat 10 through heating column 13, and by some locking part 50 screw locks, on the described erection column 16 on described protecting seat 10, completes the fixing of light emitting diode module 30.Now, described heat-conducting silica gel sheet 38 is sandwiched between the chip 37 and described base plate 11 of described circuit board 31, so that the heat on described circuit board 31 is passed on base plate 11.Then, the interior filling casting glue in described encapsulating space 33.Described casting glue is filled in encapsulating space 33.Now, the top of the sidewall 12 of the end face of described embedding glue-line 36, described protecting seat 10 is, the end face of the top of described heating column 13 and described LED 32 is all concordant.Please refer to Fig. 8; described connector 34 is fixed in the perforation 15 of described protecting seat 10; one end and the described circuit board 31 of connector 34 are electrically connected; the other end of connector 34 protrudes out the base plate 11 of described protecting seat 10; to be connected with other exterior electrical components, reach the object that power supply and communication are provided.Between described connector 34 and described perforation 15, be provided with water proof ring.
In the present embodiment, described locking part 50 is screw.Described casting glue is organic silica gel, epoxide-resin glue, polyurethane adhesive or AB glue.
The light source module 100 of LED display of the present invention completes after installation in described light emitting diode module 30; casting glue covers the gap of the sidewall 12 of described circuit board 31, described locking part 50, described circuit board 31 and described protecting seat 10; make to be subject to dust, foreign object; the place of moisture and water impact all covers, and makes light source module 100 reach degree of protection more than IP65.
In addition, the effect of the through hole 14 of described protecting seat 10 has three, one, and the contact area of increase protecting seat 10 and surrounding air, the heat that described light emitting diode module 30 is produced is effectively distributed, and has improved radiating efficiency; Its two, play ventilative and reduce the effect of windage, strengthen the wind loading rating of light source module 100; Its three, play the effect of printing opacity, be beneficial to LED display daylighting behind.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a LED display, it comprises the some light source modules that are stitched together, each light source module comprises a light emitting diode module, described light emitting diode module comprises a circuit board and is installed on the some LED on described circuit board, it is characterized in that: each light source module also comprises the protecting seat of installing for described light emitting diode module, described protecting seat comprises a base plate and the sidewall being extended in the same way by the periphery of described base plate, described light emitting diode module is installed on described base plate, the circuit board of described light emitting diode module and the sidewall of described protecting seat form an encapsulating space, in described encapsulating space, fill casting glue to form an embedding glue-line, the LED of described light emitting diode module is embedded in embedding glue-line and the end face of described LED flushes with the end face of described embedding glue-line,
Described protecting seat also comprises the some heating columns that extended by described base plate, on described circuit board, offer some mounting holes, described mounting hole site is between described LED and corresponding one by one with described heating column, and described heating column is through described mounting hole and stretch in embedding glue-line;
The heating column of described protecting seat is offered through hole, and described through hole connects the base plate of described heating column and described protecting seat.
2. LED display as claimed in claim 1, is characterized in that: the end face of described embedding glue-line is concordant with the top of the sidewall of the protecting seat of described light source module.
3. LED display as claimed in claim 1, is characterized in that: the top of the heating column of described protecting seat is concordant with the end face of described embedding glue-line.
4. LED display as claimed in claim 1, is characterized in that: described protecting seat is one-body molded by Heat Conduction Material.
5. LED display as claimed in claim 4, is characterized in that: described protecting seat is one-body molded by aluminum alloy materials.
6. LED display as claimed in claim 1; it is characterized in that: described light source module also comprises a connector; the base plate of described protecting seat is offered a perforation; described connector is embedded in described perforation; one end of described connector and the circuit board of described light emitting diode module are electrically connected, and the other end of described connector protrudes out described base plate.
7. LED display as claimed in claim 1, is characterized in that: on the circuit board of described light emitting diode module, chip is set, sandwiched one heat-conducting silica gel sheet between described chip and the base plate of described protecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110249137.7A CN102314812B (en) | 2011-08-26 | 2011-08-26 | LED (Light-Emitting Diode) display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110249137.7A CN102314812B (en) | 2011-08-26 | 2011-08-26 | LED (Light-Emitting Diode) display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102314812A CN102314812A (en) | 2012-01-11 |
| CN102314812B true CN102314812B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110249137.7A Expired - Fee Related CN102314812B (en) | 2011-08-26 | 2011-08-26 | LED (Light-Emitting Diode) display screen |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8974077B2 (en) | 2012-07-30 | 2015-03-10 | Ultravision Technologies, Llc | Heat sink for LED light source |
| CN102930785B (en) * | 2012-09-26 | 2016-06-08 | 惠州雷曼光电科技有限公司 | LED shows module |
| CN103280164B (en) * | 2013-05-30 | 2016-02-17 | 创维光电科技(深圳)有限公司 | LED display module and LED display |
| US9195281B2 (en) | 2013-12-31 | 2015-11-24 | Ultravision Technologies, Llc | System and method for a modular multi-panel display |
| US9582237B2 (en) | 2013-12-31 | 2017-02-28 | Ultravision Technologies, Llc | Modular display panels with different pitches |
| US10706770B2 (en) | 2014-07-16 | 2020-07-07 | Ultravision Technologies, Llc | Display system having module display panel with circuitry for bidirectional communication |
| CN108898969B (en) * | 2018-08-27 | 2024-01-30 | 利亚德电视技术有限公司 | Display screen |
| CN110176190A (en) * | 2019-06-17 | 2019-08-27 | 深圳市洲明科技股份有限公司 | The preparation method and LED display of LED display module |
| CN111477121B (en) * | 2020-05-26 | 2022-06-10 | 深圳市洲明科技股份有限公司 | Manufacturing method of LED display screen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2824292Y (en) * | 2005-07-06 | 2006-10-04 | 广州市先力光电科技有限公司 | Water proof radiating LED light source module |
| CN102044535B (en) * | 2009-10-26 | 2012-08-08 | 佛山市国星光电股份有限公司 | Surface mounted device (SMD) light emitting diode (LED) device and display module thereof for outdoor display screen |
| CN201667346U (en) * | 2010-01-18 | 2010-12-08 | 佛山市国星光电股份有限公司 | Surface-picked and placed LED apparatus and display screen using same |
| CN201689616U (en) * | 2010-04-01 | 2010-12-29 | 石家庄市京华电子实业有限公司 | Outdoor three-in-one surface-mount LED die set |
| CN101963296B (en) * | 2010-07-07 | 2013-03-20 | 杨东佐 | Manufacture method of LED integrated structure |
| CN102163392B (en) * | 2011-03-09 | 2013-03-13 | 深圳雷曼光电科技股份有限公司 | Light emitting diode (LED) assembled screen |
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| CN102314812A (en) | 2012-01-11 |
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