CN102454956A - Single LED (light-emitting diode) light source radiating seat and LED lamp - Google Patents
Single LED (light-emitting diode) light source radiating seat and LED lamp Download PDFInfo
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- CN102454956A CN102454956A CN201010520677XA CN201010520677A CN102454956A CN 102454956 A CN102454956 A CN 102454956A CN 201010520677X A CN201010520677X A CN 201010520677XA CN 201010520677 A CN201010520677 A CN 201010520677A CN 102454956 A CN102454956 A CN 102454956A
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- light source
- led light
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- radiating block
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Abstract
The invention relates to a single LED (light-emitting diode) light source radiating seat which comprises a substrate for fixing an LED light source, a radiating block connected with the substrate, and a radiating plate connected with the radiating block, wherein the radiating block comprises a connecting part connected with the substrate and the radiating plate and a protruding part arranged on the connecting part; and the protruding part is adhered to the LED light source through a hole formed on the substrate. The LED light source is jointed with the protruding part of the radiating block, so that the heat generated by the light source can be directly transferred to the radiating plate through the radiating block; and because the traditional heat is transferred to the radiating block and the radiating plate in turn through the substrate, the whole conducting thermal resistance between the LED light source and the radiating plate is reduced. Therefore, the heat conduction efficiency is higher, the radiating effect is better, the junction temperature of the LED light source can be effectively reduced, and the service life of the LED light source is prolonged. In addition, the invention also relates to an LED lamp employing the single LED light source radiating seat.
Description
[technical field]
The present invention relates to a kind of single led light source heat radiation seat and LED lamp.
[background technology]
Traditional LED lamp is installed to aluminium base on the heat sink and dispels the heat generally through led light source is welded on the aluminium base.General aluminium base is to be main heat sink material with aluminium sheet, but because of also need welding the circuit leads such as pin of LED above it, so, generally on aluminium sheet, also spread the heat conductor of one deck Copper Foil as circuit and heat radiation.But, the layer that also must repave one deck insulation between Copper Foil and the aluminium sheet guarantee between the circuit and circuit and aluminium sheet between insulating properties, this insulating barrier has but produced huge thermal resistance, influences the heat dispersion of led light source.
[summary of the invention]
Based on this, be necessary to provide a kind of single led light source heat radiation seat of good heat dispersion performance.
A kind of single led light source heat radiation seat, it comprises: the heat sink that is used for fixing the substrate of led light source, the radiating block that is connected with said substrate and is connected with said radiating block; Offer porosely on the said substrate, said radiating block comprises the connecting portion that is connected with said substrate and said heat sink and is located at the jut on the said connecting portion, and said jut passes said hole and said led light source is fitted.
Wherein, said substrate comprises aluminium base successively, is located at adhesive layer on the said aluminium base, is located at the insulating barrier on the said adhesive layer and is located at the copper layer on the said insulating barrier; The connecting portion of said radiating block is connected with said aluminium base, and said led light source is welded on the said copper layer.
Wherein, the connecting portion of said radiating block and said aluminium base are affixed through heat-conducting silicone grease.
Wherein, said radiating block is the copper radiating block.
Wherein, said heat sink comprises radiating bottom plate and a plurality of fins that extend to form from said radiating bottom plate one side, and said radiating block is connected with said radiating bottom plate.
Wherein, said radiating bottom plate offers the groove that holds said connecting portion away from a side of said a plurality of fins, and the inwall of said connecting portion and said groove and bottom land weld through the Reflow Soldering mode.
Wherein, the connecting portion of said substrate, radiating block and protuberance are discoideus; Groove on said hole and the said radiating bottom plate is cylindrical; The diameter of substrate is identical with the diameter of said radiating block connecting portion, and the diameter in said hole is identical with the diameter of said protuberance, and the diameter of said groove is identical with the diameter of said connecting portion.
Wherein, Be respectively equipped with through hole on said substrate and the said connecting portion; The lead to the hole site of the corresponding said substrate of the radiating bottom plate of said heat sink, radiating block is provided with screw, and said substrate, said radiating block and said heat sink are fixed together through the screw that passes said through hole and said screw.
Wherein, said heat sink is copper heat sink or aluminium heat sink.
The present invention also provides a kind of LED lamp; It comprises: the described led light source radiating seat of led light source and claim 1, said led light source comprise the cooling pad of luminescence chip, fixing said luminescence chip and the circuit lead that electrically connects with said luminescence chip of being drawn by said cooling pad; The jut of said radiating block and said cooling pad are fitted, and said circuit lead is fixed on the substrate of said led light source radiating seat.
Above-mentioned single led light source heat radiation seat is through engaging led light source with the protuberance of radiating block; The heat that light source produces can directly be passed to heat sink through radiating block, passes to heat sink via substrate to radiating block than traditional heat again, the whole thermal-conduction resistance between having reduced from the led light source to the heat sink; Thereby heat conduction efficiency is higher; Radiating effect is better, can effectively reduce the junction temperature of led light source, prolongs the service life of led light source.
In addition, radiating block and heat sink all adopt good copper of heat conductivility or aluminium material, and fluid-tight engagement between the cooling pad, base material, radiating block, heat sink, and heat conduction efficiency is high, and heat dispersion further strengthens.
[description of drawings]
Fig. 1 is the single led light source heat radiation seat schematic perspective view of an embodiment;
Fig. 2 is the cutaway view along IV-IV line among Fig. 1;
Fig. 3 is the schematic perspective view of led light source among Fig. 1;
Fig. 4 is the schematic perspective view of substrate among Fig. 1;
Fig. 5 is the cutaway view along V-V line among Fig. 4;
Fig. 6 is the schematic perspective view of radiating block among Fig. 1;
Fig. 7 is the schematic perspective view of heat sink among Fig. 1.
[specific embodiment]
Mainly combine accompanying drawing and specific embodiment that the structure of single led light source heat radiation seat and LED lamp is done further detailed explanation below.LED lamp provided by the present invention can comprise a plurality of led light source radiating seats and a plurality of led light source.Like Fig. 1, shown in Figure 2, one of them led light source radiating seat 100 comprises: be used for fixing the substrate 120 of led light source 110, the radiating block 130 that is connected with substrate 120 and the heat sink 140 that is connected with radiating block 130.
As shown in Figure 3; The led light source 110 of present embodiment comprises luminescence chip 111, the fixedly cooling pad 113 of luminescence chip 111 and the circuit leads 115 that electrically connect with luminescence chip 111 of being drawn by cooling pad 113 both sides of the edge, and circuit lead is fixed on the substrate of said led light source radiating seat.Preferably, cooling pad 113 roughly is tabular, and luminescence chip 111 is fixed on a side of tabular cooling pad 113.
As shown in Figure 4, substrate 120 is roughly discoideus, and the centre is provided with roughly cylindrical hole 121.As shown in Figure 5, the substrate of present embodiment has layer structure, is followed successively by stacked aluminium base 123, adhesive layer 125, insulating barrier 127 and copper layer 129.
As shown in Figure 6, radiating block 130 comprises roughly being discoideus connecting portion 131 and discoideus protuberance 133 of being of connecting portion 131 centers being set of being connected with substrate 120 and heat sink 140 respectively.Wherein, Diameter, the degree of depth in the hole 121 on the diameter of protuberance 133, thickness and the substrate 120 are roughly the same; The diameter of the diameter of connecting portion 131 and substrate 120 is roughly the same, thereby radiating block 130 can fit tightly with substrate 120 realizations, increases the heat conduction efficiency of this led light source radiating seat 100.
As shown in Figure 7, heat sink 140 comprises radiating bottom plate 141 that roughly is square and a plurality of fins 143 that are cuboid that vertically extend to form from radiating bottom plate 141 1 sides.Wherein, radiating bottom plate 141 offers the groove 145 that holds radiating block 130 connecting portions 131 with fin 143 relative sides.Groove 145 is cylindric.Diameter, the thickness of the diameter of groove 145, the degree of depth and connecting portion 131 are roughly the same.The connecting portion 131 of radiating block 130 welds through the Reflow Soldering mode with the inwall of groove 145 and bottom land (not indicating among the figure), and the two closely contacts, and heat conduction efficiency is higher.
Preferably, heat sink 140 can adopt good copper of heat dispersion or aluminium material to make, and further improves the radiating efficiency of this led light source radiating seat 100.
The led light source 110 of present embodiment is fixed on the copper layer 129 of substrate 120 through circuit lead 115.Be provided with insulating barrier 127 between copper layer 129 and the aluminium base 123, can guarantee to reach between the many circuit leads 115 insulating properties between circuit lead 115 and the aluminium base 125.
Affixed between the connecting portion 131 of substrate 120 and radiating block 130 through heat-conducting silicone grease.Because the geomery of substrate 120 interstitial holes 121 is corresponding with the geomery of the protuberance 133 of radiating block 130; Protuberance 133 can pass hole 121 and fit with the cooling pad 113 of led light source 110, thereby the heat production of led light source 110 can be directly through radiating block 130 conduction.
The geomery of the connecting portion 131 of radiating block 130 is corresponding with the geomery of groove 145, and connecting portion 131 can be fixed in the groove 145 comparatively closely.In addition, connecting portion 131 is through welding with groove 145 inwalls and bottom land, and than traditional connecting portion 131 single faces and radiating bottom plate 141 welding, area of dissipation is bigger, and heat conduction efficiency is higher, and radiating effect is better.
In addition; Be respectively equipped with the through hole 201,203 that supplies screw to pass on the substrate 120 of present embodiment, the connecting portion 131 of radiating block 130; Accordingly, the position of the through hole 201,203 of radiating bottom plate 141 counterpart substrates 120 of heat sink 140 and radiating block 130 is provided with screw 205.Substrate 120, radiating block 130 and heat sink 140 can further tighten up through screw, make contact between any two more tight, and heat conduction efficiency is higher.
The led light source radiating seat 100 of present embodiment is in when assembling, can be at first the connecting portion 131 of radiating block 130 be embedded in the groove 145 of heat sink 140, and through hole is alignd with screw, with modes such as Reflow Solderings the two is welded as a whole again; Then, be welded on the copper layer 129 of substrate 120 by the circuit lead 115 of circuit configuration led light source 110; The aluminium base 123 that will weld the substrate 120 of led light source 110 through heat-conducting silicone grease again installs on the radiating block 130, aligned through holes 201,203, and make protuberance 133 fluid-tight engagement of cooling pad 113 with the radiating block 130 of led light source 110; Through mounting screw substrate 120, radiating block 130 and heat sink 140 are fixed tightly in together at last.
Led light source radiating seat 100 is through protuberance 133 fluid-tight engagement with led light source 110 and radiating block 130; The heat that light source produces can directly be passed to heat sink 140 through radiating block 130, passes to heat sink 140 via substrate 120 to radiating block 130 than traditional heat again, has reduced from led light source 110 to heat sink the whole thermal-conduction resistance 140; Thereby heat conduction efficiency is higher; Radiating effect is better, can effectively reduce the junction temperature of led light source 110, prolongs the service life of led light source.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. a single led light source heat radiation seat is characterized in that, comprising: the heat sink that is used for fixing the substrate of led light source, the radiating block that is connected with said substrate and is connected with said radiating block; Offer porosely on the said substrate, said radiating block comprises the connecting portion that is connected with said substrate and said heat sink and is located at the jut on the said connecting portion, and said jut passes said hole and said led light source is fitted.
2. single led light source heat radiation seat as claimed in claim 1 is characterized in that, said substrate comprises aluminium base successively, be located at adhesive layer on the said aluminium base, be located at the insulating barrier on the said adhesive layer and be located at the copper layer on the said insulating barrier; The connecting portion of said radiating block is connected with said aluminium base, and said led light source is welded on the said copper layer.
3. single led light source heat radiation seat as claimed in claim 2 is characterized in that, the connecting portion of said radiating block and said aluminium base are affixed through heat-conducting silicone grease.
4. like claim 1 or 3 described single led light source heat radiation seats, it is characterized in that said radiating block is the copper radiating block.
5. single led light source heat radiation seat as claimed in claim 1 is characterized in that, said heat sink comprises radiating bottom plate and a plurality of fins that extend to form from said radiating bottom plate one side, and said radiating block is connected with said radiating bottom plate.
6. single led light source heat radiation seat as claimed in claim 5; It is characterized in that; Said radiating bottom plate offers the groove that holds said connecting portion away from a side of said a plurality of fins, and the inwall of said connecting portion and said groove and bottom land weld through the Reflow Soldering mode.
7. single led light source heat radiation seat as claimed in claim 6 is characterized in that the connecting portion of said substrate, radiating block and protuberance are discoideus; Groove on said hole and the said radiating bottom plate is cylindrical; The diameter of substrate is identical with the diameter of said radiating block connecting portion, and the diameter in said hole is identical with the diameter of said protuberance, and the diameter of said groove is identical with the diameter of said connecting portion.
8. single led light source heat radiation seat as claimed in claim 5; It is characterized in that; Be respectively equipped with through hole on said substrate and the said connecting portion; The lead to the hole site of the corresponding said substrate of the radiating bottom plate of said heat sink, radiating block is provided with screw, and said substrate, said radiating block and said heat sink are fixed together through the screw that passes said through hole and said screw.
9. like claim 1 or 6 described single led light source heat radiation seats, it is characterized in that said heat sink is copper heat sink or aluminium heat sink.
10. LED lamp; It is characterized in that; It comprises: the described led light source radiating seat of led light source and claim 1, said led light source comprise the cooling pad of luminescence chip, fixing said luminescence chip and the circuit lead that electrically connects with said luminescence chip of being drawn by said cooling pad; The jut of said radiating block and said cooling pad are fitted, and said circuit lead is fixed on the substrate of said led light source radiating seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010520677.XA CN102454956B (en) | 2010-10-22 | 2010-10-22 | Single LED (light-emitting diode) light source radiating seat and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010520677.XA CN102454956B (en) | 2010-10-22 | 2010-10-22 | Single LED (light-emitting diode) light source radiating seat and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102454956A true CN102454956A (en) | 2012-05-16 |
| CN102454956B CN102454956B (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010520677.XA Active CN102454956B (en) | 2010-10-22 | 2010-10-22 | Single LED (light-emitting diode) light source radiating seat and LED lamp |
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| Country | Link |
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| CN (1) | CN102454956B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900989A (en) * | 2012-10-31 | 2013-01-30 | 深圳市华星光电技术有限公司 | LED (Light Emitting Diode) lamp strip and backlight module employing same |
| CN109768147A (en) * | 2018-12-29 | 2019-05-17 | 中山市木林森电子有限公司 | LED packaging structure and manufacturing method thereof |
| CN114905028A (en) * | 2022-05-19 | 2022-08-16 | 深圳市宝田精工科技有限公司 | In-mold die-casting insert method and in-mold die-casting insert device based on optical communication module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741291A (en) * | 2004-08-25 | 2006-03-01 | 发明家科技开发股份有限公司 | Light emitting device |
| CN101286455A (en) * | 2007-04-11 | 2008-10-15 | 一诠精密工业股份有限公司 | Manufacturing method for heat radiating base of surface adhesive diode support and construction thereof |
| US20090052177A1 (en) * | 2007-08-24 | 2009-02-26 | Ama Precision Inc. | Light Emitting Diode Base with Radiating Fins |
| CN201420960Y (en) * | 2009-03-20 | 2010-03-10 | 陈文进 | Modular LED device |
-
2010
- 2010-10-22 CN CN201010520677.XA patent/CN102454956B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741291A (en) * | 2004-08-25 | 2006-03-01 | 发明家科技开发股份有限公司 | Light emitting device |
| CN101286455A (en) * | 2007-04-11 | 2008-10-15 | 一诠精密工业股份有限公司 | Manufacturing method for heat radiating base of surface adhesive diode support and construction thereof |
| US20090052177A1 (en) * | 2007-08-24 | 2009-02-26 | Ama Precision Inc. | Light Emitting Diode Base with Radiating Fins |
| CN201420960Y (en) * | 2009-03-20 | 2010-03-10 | 陈文进 | Modular LED device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900989A (en) * | 2012-10-31 | 2013-01-30 | 深圳市华星光电技术有限公司 | LED (Light Emitting Diode) lamp strip and backlight module employing same |
| CN109768147A (en) * | 2018-12-29 | 2019-05-17 | 中山市木林森电子有限公司 | LED packaging structure and manufacturing method thereof |
| CN109768147B (en) * | 2018-12-29 | 2021-06-08 | 中山市木林森电子有限公司 | LED packaging structure and manufacturing method thereof |
| CN114905028A (en) * | 2022-05-19 | 2022-08-16 | 深圳市宝田精工科技有限公司 | In-mold die-casting insert method and in-mold die-casting insert device based on optical communication module |
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| Publication number | Publication date |
|---|---|
| CN102454956B (en) | 2014-02-19 |
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