CN201689616U - Outdoor three-in-one surface-mount LED die set - Google Patents
Outdoor three-in-one surface-mount LED die set Download PDFInfo
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- CN201689616U CN201689616U CN2010201475522U CN201020147552U CN201689616U CN 201689616 U CN201689616 U CN 201689616U CN 2010201475522 U CN2010201475522 U CN 2010201475522U CN 201020147552 U CN201020147552 U CN 201020147552U CN 201689616 U CN201689616 U CN 201689616U
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- lamp plate
- mount led
- drive plate
- plate
- surface mount
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Abstract
The utility model relates to an outdoor three-in-one surface-mount LED die set, which belongs to display screen components and is applicable to outdoor LED display screens. The outdoor three-in-one surface-mount LED die set comprises a printed circuit board used for mounting a three-in-one surface-mount LED, namely a lamp panel, a printed circuit board used for mounting a drive circuit, namely a driver board, a constant-current driver IC, a three-in-one surface-mount LED, a module casing, a compound radiating fin, a heat conducting silicone grease layer, a pouring sealant layer and a module face guard. The utility model has the technical point that the driver board is one or two in quantity; when the driver boards are two in quantity, the two driver boards and the lamp panel constitute a Pi-shaped structure; and when the driver board is one in quantity, the driver board and the lamp panel constitute a T-shaped structure. The utility model has the benefits of reasonable structure, uniform heat dissipation, and stable work, and can adapt to severe outdoor environment and condition.
Description
Technical field
The utility model relates to a kind of open air three-in-one Surface Mount LED module, belongs to display screen component, is applicable to outdoor LED display screen.
Background technology
The full-color LED display screen is a kind of flat-panel screens made from the light emitting diode of three kinds of primary colours of red, green, blue, brightness height, little, the energy-saving and environmental protection of decay.
What current outdoor full color look display screen adopted is direct insertion LED device, has deficiencies such as production automation degree is low, production efficiency low, process consistency is poor, display effect is undesirable; Especially because of the bad decay that causes of LED heat radiation is very big and inhomogeneous, be far smaller than its rated life time actual life; Housing degree of protection (the especially degree of protection of back) is low, often in use, causes failure rate very high, influences the normal operation of display screen.
The outdoor LED module has two kinds of versions.
A kind of is " lamp drives divergence type " structure, promptly adopts two printed circuit board, one direct insertion LED (being lamp plate) is installed, and another piece is installed driving circuit (being drive plate), and lamp plate and drive plate are arranged in parallel, between adopt a large amount of connectors to connect.
The shortcoming of this structure is: the many and production efficiency low (adopting manual welding) of connector more, and reliability of products and consistance are relatively poor; And a cavity that forms between lamp plate and drive plate, seriously hindered the heat radiation of lamp plate, cause the decay of LED device serious, do not reach far away the rated life time of LED actual life; And the housing degree of protection of module back is very low, can't adapt to outdoor bad working environment, causes often do not reach the rated life time actual life of display screen.
Another is " lamp drives the unification type " structure, promptly only adopts a printed circuit board, and it simultaneously installs direct insertion LED, and another side is installed driving circuit.
This structure has been save in " lamp drives divergence type " structure a large amount of connector between the lamp plate and drive plate, and production efficiency and reliability all improve a lot, and do not have the cavity that hinders heat radiation, and heat radiation has clear improvement.The shortcoming of this structure is: chip for driving can only be installed in the gap of direct insertion LED pin, promptly " seizes every opportunity ", and circuit layout, wiring are subjected to bigger restriction, and heat-sinking capability still is apparent not enough; For highdensity display screen below the P16, difficult the realization.And there is the low shortcoming of housing degree of protection of module back in heat radiation equally fully by cross-ventilation.
The utility model content
Technical problem to be solved in the utility model provide have rational in infrastructure, heat radiation evenly, working stability, can adapt to a kind of open air three-in-one Surface Mount LED module of outdoor severe environmental conditions.
The technical scheme that its technical matters that solves the utility model adopts:
The utility model comprises that the printed circuit board (PCB) that the three-in-one Surface Mount LED of installation uses is that the printed circuit board (PCB) that lamp plate, installation driving circuit are used is drive plate, constant-current driven chip, three-in-one Surface Mount LED, module casing, heat sink compound, heat-conducting silicone grease layer, embedding glue-line and module face shield; Described drive plate and mutual vertical connection of the back side of lamp plate; Described three-in-one Surface Mount LED is distributed on the front of described lamp plate, is provided with uniform through hole on the lamp plate of the gap location of described three-in-one Surface Mount LED, is provided with the coat of metal on the inwall of each through hole; Described embedding glue-line covers the front of pin and the lamp plate of described three-in-one Surface Mount LED; On described module face shield, be provided with and three-in-one Surface Mount LED corresponding square holes, be provided with the horizontal convex edge that shield sunlight is used above every horizontal row square hole in the front of described module face shield, described module face shield is assembled together by plunger on its back side and the mounting hole on the module casing;
Described constant-current driven chip is installed on two sides of described drive plate;
On the upper surface of the back side of described lamp plate and constant-current driven chip, be coated with the thermal conductive silicon glue-line;
Described heat sink compound is made up of substrate, drive plate chamber and fin; The size of described substrate and the equal and opposite in direction of lamp plate, described drive plate chamber and fin are positioned on the back side of described substrate, the front of described substrate contacts with the back side of lamp plate, described lamp plate and substrate by screw retention on module casing.
Described drive plate is one or two, and when described drive plate was two, described two drive plates and lamp plate constituted Ji shape structure; When described drive plate was one, a described drive plate was Chenged Xia shape structure with lamp plate Gou; Described drive plate is welded to connect with employing " golden finger " formula that is connected between the lamp plate, and promptly utilizes the connection pads on described lamp plate and the drive plate to be welded to connect.
The beneficial effects of the utility model are as follows:
1, adopts heat sink compound to combine and constituted hermetic structure, reached waterproof, protection against the tide, dustproof purpose, make the degree of protection of entire module reach IP65 with the embedding glue-line.
2, because any device is not installed at the lamp plate back side (except that connection pads), thereby the substrate of heat sink compound closely contacts (by the thermal conductive silicon glue-line) with the lamp plate back side.Solved the heat dissipation problem that mounts LED effectively, the drive plate chamber structure of heat sink compound has solved the heat dissipation problem of driving circuit preferably;
In addition, in heat radiation, also play the effect of soaking plate at the substrate of the heat sink compound at the lamp plate back side, thoroughly solved the inconsistent problem of single LEDs working temperature, efficiently solved, and then caused the problem of " mosaic " phenomenon because non-uniform temperature causes the LED decay different.
3, adopt the constant-current driven chip driving LED, efficiently solve " mosaic " phenomenon.
4, the embedding glue-line of module front adopts heat insulation Embedding Material effectively to stop the heat that imports because of solar radiation, and the module face shield can effectively completely cut off most of heat that sun direct projection brings.
5, adopt lamp plate and drive plate separated structures, be convenient to install heat sink compound, driving circuit is dispelled the heat separately, can not dispel the heat by overslaugh LED, rational in infrastructure.
Description of drawings
Fig. 1 is structural representation of the present utility model (being the A-A cut-open view of Fig. 2).
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is the enlarged drawing of Fig. 1.
In Fig. 1-4, cover assembling that plunger, 20 drive plate chambers, 21 on module face shield mounting hole on copper layer, 8 module casings, 9 heat sink compound, 10 heat-conducting silicone grease layers, 11 embedding glue-lines, 12 module face shields, 13 horizontal convex edges, 14 screws, 15 coats of metal, 16 fins, 17 module casings, 18 substrates, the 19 module face shield back sides install screw hole that the module face shields use, 22 die sets with hole, 23 module casing pilot holes on 1 lamp plate, 2 drive plates, 3 constant-current driven chips, 4 three-in-one Surface Mount LED, 5 connection pads, 6 through holes, 7 lamp plates.
Embodiment
Embodiment 1 (lamp plate and two drive plates constitute Ji shape structure):
By the embodiment 1 shown in Fig. 1-4 as can be known, it comprises that the printed circuit board (PCB) that the three-in-one Surface Mount LED of installation uses is that two printed circuit board that lamp plate 1, installation driving circuit are used are two drive plates 2, constant-current driven chip 3, three-in-one Surface Mount LED4, module casing 8, heat sink compound 9, heat-conducting silicone grease layer 10, embedding glue-line 11 and module face shields 12; Described drive plate 2 and mutual vertical connection of the back side of lamp plate 1, lamp plate 1 and two drive plates 2 constitute Ji shape structure (see figure 1), described drive plate 2 is welded to connect with employing " golden finger " formula that is connected between the lamp plate 1, and promptly utilizes the connection pads 5 on described lamp plate 1 and the drive plate 2 to be welded to connect; Described three-in-one Surface Mount LED is distributed on the front of described lamp plate 1, is provided with uniform through hole 6 on the lamp plate 1 of the gap location of described three-in-one Surface Mount LED4, is provided with the coat of metal 15 on the inwall of each through hole 6; Described embedding glue-line 11 covers the front of pin and the lamp plate 1 of described three-in-one Surface Mount LED; On described module face shield 12, be provided with and three-in-one Surface Mount LED4 corresponding square holes, be provided with the horizontal convex edge 13 that shield sunlight is used above every horizontal row square hole in the front of described module face shield 12, described module face shield 12 is assembled together by plunger on its back side 19 and mounting hole 17 on the module casing 8;
Described constant-current driven chip 3 is installed on two sides of described drive plate 2;
On the upper surface of the back side of described lamp plate 1 and constant-current driven chip 3, be coated with thermal conductive silicon glue-line 10;
Described heat sink compound 9 is made up of substrate 18, drive plate chamber 20 and fin 16; The equal and opposite in direction of the size of described substrate 18 and lamp plate 1, described drive plate chamber 20 and fin 16 are positioned on the back side of described substrate 18, the front of described substrate 18 contacts with the back side of lamp plate 1, described lamp plate 1 and substrate 18 by screw retention on module casing 8.
The model of described constant-current driven chip 3 is: the chip of MBI5024 or MBI5030 or similar functions.
Embodiment 2 (lamp plate Cheng Xia shape structure) with a drive plate Gou:
Embodiment 2 only adopts a drive plate 2 as different from Example 1, and drive plate 2 is Chenged Xia shape structure with lamp plate 1 Gou.
Claims (2)
1. an open air three-in-one Surface Mount LED module is characterized in that the printed circuit board (PCB) that it comprises that the three-in-one Surface Mount LED of installation uses is that the printed circuit board (PCB) that lamp plate (1), installation driving circuit are used is drive plate (2), constant-current driven chip (3), three-in-one Surface Mount LED (4), module casing (8), heat sink compound (9), heat-conducting silicone grease layer (10), embedding glue-line (11) and module face shield (12); Described drive plate (2) and mutual vertical connection of the back side of lamp plate (1); Described three-in-one Surface Mount LED is distributed on the front of described lamp plate (1), is provided with uniform through hole (6) on the lamp plate (1) of the gap location of described three-in-one Surface Mount LED (4), is provided with the coat of metal (15) on the inwall of each through hole (6); Described embedding glue-line (11) covers the front of pin and the lamp plate (1) of described three-in-one Surface Mount LED; On described module face shield (12), be provided with corresponding square holes with three-in-one Surface Mount LED (4), top at every horizontal row square hole in the front of described module face shield (12) is provided with the horizontal convex edge (13) that shield sunlight is used, and described module face shield (12) is assembled together by plunger on its back side (19) and mounting hole (17) on the module casing (8);
Described constant-current driven chip (3) is installed on two sides of described drive plate (2);
On the upper surface of the back side of described lamp plate (1) and constant-current driven chip (3), be coated with thermal conductive silicon glue-line (10);
Described heat sink compound (9) is made up of substrate (18), drive plate chamber (20) and fin (16); The equal and opposite in direction of the size of described substrate (18) and lamp plate (1), described drive plate chamber (20) and fin (16) are positioned on the back side of described substrate (18), the front of described substrate (18) contacts with the back side of lamp plate (1), described lamp plate (1) and substrate (18) by screw retention on module casing (8).
2. a kind of open air according to claim 1 three-in-one Surface Mount LED module is characterized in that described drive plate (2) is one or two, and when described drive plate was two, described two drive plates and lamp plate constituted Ji shape structure; When described drive plate was one, a described drive plate was Chenged Xia shape structure with lamp plate Gou; Described drive plate is welded to connect with employing " golden finger " formula that is connected between the lamp plate, and promptly utilizes the connection pads (5) on described lamp plate and the drive plate to be welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475522U CN201689616U (en) | 2010-04-01 | 2010-04-01 | Outdoor three-in-one surface-mount LED die set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475522U CN201689616U (en) | 2010-04-01 | 2010-04-01 | Outdoor three-in-one surface-mount LED die set |
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| Publication Number | Publication Date |
|---|---|
| CN201689616U true CN201689616U (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201475522U Expired - Fee Related CN201689616U (en) | 2010-04-01 | 2010-04-01 | Outdoor three-in-one surface-mount LED die set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262844A (en) * | 2011-08-03 | 2011-11-30 | 石家庄市京华电子实业有限公司 | Aluminum-base integrated outdoor full-color three-in-one light-emitting diode (LED) display screen and method for manufacturing same |
| CN102314812A (en) * | 2011-08-26 | 2012-01-11 | 创维光电科技(深圳)有限公司 | LED (Light-Emitting Diode) display screen |
| CN105845045A (en) * | 2016-05-30 | 2016-08-10 | 无锡昊瑜节能环保设备有限公司 | High-density LED (Light Emitting Diode) panel |
-
2010
- 2010-04-01 CN CN2010201475522U patent/CN201689616U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262844A (en) * | 2011-08-03 | 2011-11-30 | 石家庄市京华电子实业有限公司 | Aluminum-base integrated outdoor full-color three-in-one light-emitting diode (LED) display screen and method for manufacturing same |
| CN102262844B (en) * | 2011-08-03 | 2013-08-14 | 石家庄市京华电子实业有限公司 | Aluminum-base integrated outdoor full-color three-in-one light-emitting diode (LED) display screen and method for manufacturing same |
| CN102314812A (en) * | 2011-08-26 | 2012-01-11 | 创维光电科技(深圳)有限公司 | LED (Light-Emitting Diode) display screen |
| CN105845045A (en) * | 2016-05-30 | 2016-08-10 | 无锡昊瑜节能环保设备有限公司 | High-density LED (Light Emitting Diode) panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20140401 |