CN201748197U - High-power LED planar light source - Google Patents
High-power LED planar light source Download PDFInfo
- Publication number
- CN201748197U CN201748197U CN2010202426487U CN201020242648U CN201748197U CN 201748197 U CN201748197 U CN 201748197U CN 2010202426487 U CN2010202426487 U CN 2010202426487U CN 201020242648 U CN201020242648 U CN 201020242648U CN 201748197 U CN201748197 U CN 201748197U
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- led
- light source
- aluminium base
- power led
- circuit board
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Abstract
The utility model discloses a high-power LED planar light source which is designed aiming to the properties of the high-power LED and adopts an aluminum baseplate as the printed circuit board. Wiring is directly carried out on the aluminum baseplate and a bonding pad is directly arranged on the surface of the aluminum baseplate, so that the radiating area and volume are greatly increased; radiating fins are arranged below the aluminum baseplate, so as to facilitate heat radiation and improve radiating effect remarkably; and the LEDs are in grouping staggered layout with intervals, so that the influence to illumination effect is reduced and the normal use can not be affected because the LEDs in adjacent areas can play a compensating effect when LEDs in a certain group fail to shine.
Description
Technical field
The utility model relates to the LED field, exactly is a kind of high-power LED plane light source, has improved radiating mode and the arrangement mode of LED.
Background technology
The application technology of LED has spread all over the world, all trades and professions are all being used the LED technology, little screen to the mobile phone consumer electronics, big to automobile tail light, and big lighting apparatus, low side ordinary individual's lighting apparatus arranged, high-end have a LED LCD TV, widelyd popularize in market at present, the advantage of LED is very obvious, yet itself also has inevitable inferior position and shortcoming, at first LED is the current mode components and parts, therefore the instability of voltage can have very big influence to the performance of LED, can be solved substantially by the constant current source drive chip in this point, the luminous energy that another unavoidable drawback is exactly LED is transformed by electric energy and comes, wherein electric energy some be converted into luminous energy, another part is converted into heat energy, and the proportion that heat energy occupies is greater, if but heat can not shed timely, life-span and performance to LED has very big influence so, on the market design of great power LED generally all be with the pad of LED central bottom as the heat radiation source, radiating effect is relatively poor, therefore will carry out relevant design at this characteristic of great power LED when doing printed circuit board; In addition, general LED planar light source is that continuous series arrangement arranges, if wherein some LED are out of order, then can cause series LED all not work, and is all grown dark in the zone of whole series connection, influences result of use.
The utility model content
Heat radiation and illumination effect problem at existing high-power LED plane light source existence, the purpose of this utility model is to provide a kind of high-power LED plane light source, by changing the radiating effect that radiator structure improves light source, be staggered by grouping and improve the result of use of LED.
The purpose of this utility model is achieved by the following technical programs, a kind of high-power LED plane light source, comprise LED and printed circuit board, LED is fixed on the printed circuit board, it is characterized in that: adopt aluminium base as printed circuit board, directly at the aluminium base upward wiring, LED is fixed in the upper surface of aluminium base by pad, and the aluminium base lower surface is provided with fin.
Preferably, the LED pad is by the bonding of the pad on silicone grease and the aluminium base, and fin is bonded in the aluminium base lower surface by silicone grease.
Preferably, described fin is the squamous fin.
Described LED adopts grouping to arrange, and staggered the layout at interval of LED on the same group do not arranged.
By above-mentioned technical scheme as can be seen, the utility model carries out relevant design at the characteristic of great power LED, adopt aluminium base as printed circuit board, directly cabling is accomplished on the aluminium base, pad directly is made in the aluminium base surface, has increased area of dissipation and volume greatly, the setting of aluminium base lower surface fin, more help heat radiation, radiating effect improves significantly; LED adopts staggered the layout at interval of grouping to arrange, even the LED of a certain grouping does not work, adjacent area LED light can play compensating action, has reduced the influence degree to illumination effect, can not influence whole normal use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-LED, 2-aluminium base, 3-fin;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, a kind of high-power LED plane light source, comprise LED1 and printed circuit board, adopt aluminium base 2 as printed circuit board, directly at the aluminium base upward wiring, the aluminium base upper surface is bonded with pad by silicone grease, the pad of LED and the pad on the aluminium base are fixing by the silicone grease bonding, have increased area of dissipation and volume greatly, and the aluminium base lower surface is bonded with squamous fin 3 by silicone grease, more help heat radiation, radiating effect improves significantly.As shown in Figure 2, described LED adopts grouping to arrange, and staggered the layout at interval of LED on the same group do not arranged.LED adopts staggered the layout at interval of grouping to arrange, even the LED of a certain grouping does not work, adjacent area LED light can play compensating action, has reduced the influence degree to illumination effect, can not influence whole normal use.Cause A district integral body not work when certain LED of A district damages, but adjacent B district is still luminous, can carry out optical compensation to the A district, it is not very obvious making the A district change, and can not have influence on whole effect thereby product can continue to use.
Above content is to further describing that this practicality is done in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by claims of being submitted to.
Claims (4)
1. a high-power LED plane light source comprises LED and printed circuit board, and LED is fixed on the printed circuit board, it is characterized in that: adopt aluminium base as printed circuit board, directly at the aluminium base upward wiring, LED is fixed in the upper surface of aluminium base by pad, and the aluminium base lower surface is provided with fin.
2. a kind of high-power LED plane light source according to claim 1 is characterized in that: the LED pad is by the bonding of the pad on silicone grease and the aluminium base, and fin is bonded in the aluminium base lower surface by silicone grease.
3. a kind of high-power LED plane light source according to claim 1 and 2 is characterized in that: described fin is the squamous fin.
4. a kind of high-power LED plane light source according to claim 1 is characterized in that: described LED adopts grouping to arrange, and staggered the layout at interval of LED on the same group do not arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202426487U CN201748197U (en) | 2010-06-30 | 2010-06-30 | High-power LED planar light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202426487U CN201748197U (en) | 2010-06-30 | 2010-06-30 | High-power LED planar light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748197U true CN201748197U (en) | 2011-02-16 |
Family
ID=43582875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202426487U Expired - Fee Related CN201748197U (en) | 2010-06-30 | 2010-06-30 | High-power LED planar light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374438A (en) * | 2011-11-10 | 2012-03-14 | 苏州晶雷光电照明科技有限公司 | Led lamp strip |
| CN103363336A (en) * | 2012-04-09 | 2013-10-23 | 戴培钧 | LED lamp with GR type lamp cap |
-
2010
- 2010-06-30 CN CN2010202426487U patent/CN201748197U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374438A (en) * | 2011-11-10 | 2012-03-14 | 苏州晶雷光电照明科技有限公司 | Led lamp strip |
| CN103363336A (en) * | 2012-04-09 | 2013-10-23 | 戴培钧 | LED lamp with GR type lamp cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |