CN102454956B - 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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- CN102454956B CN102454956B CN201010520677.XA CN201010520677A CN102454956B CN 102454956 B CN102454956 B CN 102454956B CN 201010520677 A CN201010520677 A CN 201010520677A CN 102454956 B CN102454956 B CN 102454956B
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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 generally by LED light source is welded on aluminium base, then aluminium base is installed on heat sink and is dispelled the heat.General aluminium base is to take aluminium sheet as main heat sink material, but because also needing to weld 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 aluminium sheet guarantee between circuit and circuit and aluminium sheet between insulating properties, this insulating barrier has but produced huge thermal resistance, affects 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 light source heat radiation seat, it comprises: for the substrate of fixed L ED light source, the radiating block being connected with described substrate and the heat sink that is connected with described radiating block; On described substrate, offer porosely, described radiating block comprises the connecting portion being connected with described substrate and described heat sink and is located at the jut on described connecting portion, and described jut is fitted through described hole and described LED light source.
Wherein, described substrate comprises successively aluminium base, is located at adhesive layer on described aluminium base, is located at the insulating barrier on described adhesive layer and is located at the copper layer on described insulating barrier; The connecting portion of described radiating block is connected with described aluminium base, and described LED light source is welded on described copper layer.
Wherein, the connecting portion of described radiating block and described aluminium base are affixed by heat-conducting silicone grease.
Wherein, described radiating block is copper radiating block.
Wherein, described heat sink comprises radiating bottom plate and a plurality of fins that extend to form from described radiating bottom plate one side, and described radiating block is connected with described radiating bottom plate.
Wherein, described radiating bottom plate offers away from a side of described a plurality of fins the groove that holds described connecting portion, and the inwall of described connecting portion and described groove and bottom land weld by Reflow Soldering mode.
Wherein, the connecting portion of described substrate, radiating block and protuberance are discoideus; Groove on described hole and described radiating bottom plate is cylindrical; The diameter of substrate is identical with the diameter of described radiating block connecting portion, and the diameter in described hole is identical with the diameter of described protuberance, and the diameter of described groove is identical with the diameter of described connecting portion.
Wherein, on described substrate and described connecting portion, be respectively equipped with through hole, the corresponding described substrate of radiating bottom plate of described heat sink, the lead to the hole site of radiating block are provided with screw, and described substrate, described radiating block and described heat sink are fixed together by the screw through described through hole and described screw.
Wherein, described heat sink is copper heat sink or aluminium heat sink.
The present invention also provides a kind of LED lamp, it comprises: LED light source and LED light source radiating seat claimed in claim 1, and described LED light source comprises the cooling pad of luminescence chip, fixing described luminescence chip and the circuit lead being electrically connected with described luminescence chip of being drawn by described cooling pad; The jut of described radiating block and the laminating of described cooling pad, described circuit lead is fixed on the substrate of described LED light source radiating seat.
Above-mentioned single led light source heat radiation seat is by engaging LED light source with the protuberance of radiating block, the heat that light source produces can directly be passed to heat sink by radiating block, than traditional heat, via substrate, to radiating block, pass to again heat sink, whole thermal-conduction resistance between having reduced from LED light source to heat sink, thereby heat conduction efficiency is higher, radiating effect is better, can effectively reduce the junction temperature of LED light source, extends the service life of LED light source.
In addition, radiating block and heat sink all adopt copper or the aluminium material that heat conductivility is good, and closely engage between cooling pad, base material, radiating block, heat sink, and heat conduction efficiency is high, and heat dispersion further strengthens.
[accompanying drawing explanation]
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 in Fig. 1;
Fig. 3 is the schematic perspective view of LED light source in Fig. 1;
Fig. 4 is the schematic perspective view of substrate in Fig. 1;
Fig. 5 is the cutaway view along V-V line in Fig. 4;
Fig. 6 is the schematic perspective view of radiating block in Fig. 1;
Fig. 7 is the schematic perspective view of heat sink in Fig. 1.
[specific embodiment]
Below mainly in conjunction with the drawings and the specific embodiments the structure of single led light source heat radiation seat and LED lamp is described in further detail.LED lamp provided by the present invention can comprise a plurality of LED light source radiating seats and a plurality of LED light source.As shown in Figure 1 and Figure 2, one of them LED light source radiating seat 100 comprises: for the substrate 120 of fixed L ED light source 110, the radiating block 130 being 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 the present embodiment comprises luminescence chip 111, the fixedly cooling pad 113 of luminescence chip 111 and the circuit leads 115 that are electrically connected 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 described LED light source radiating seat.Preferably, cooling pad 113 is roughly 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 centre is provided with roughly cylindrical hole 121.As shown in Figure 5, the substrate of the 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 being roughly 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 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 the radiating bottom plate 141 being roughly square and a plurality of fins 143 that are cuboid that vertically extend to form from radiating bottom plate 141 1 sides.Wherein, the side that radiating bottom plate 141 is relative with fin 143 offers the groove 145 that holds radiating block 130 connecting portions 131.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 by Reflow Soldering mode with the inwall of groove 145 and bottom land (not indicating in figure), the two close contact, and heat conduction efficiency is higher.
Preferably, heat sink 140 can adopt copper or the aluminium material that heat dispersion is good to make, and further improves the radiating efficiency of this LED light source radiating seat 100.
The LED light source 110 of the present embodiment is fixed on the copper layer 129 of substrate 120 by circuit lead 115.Between copper layer 129 and aluminium base 123, be provided with insulating barrier 127, can guarantee between many circuit leads 115 and circuit lead 115 and aluminium base 125 between insulating properties.
Affixed by heat-conducting silicone grease between the connecting portion 131 of substrate 120 and radiating block 130.Because the geomery of the geomery of substrate 120 interstitial holes 121 and the protuberance 133 of radiating block 130 is corresponding, protuberance 133 can be fitted through hole 121 and the cooling pad 113 of LED light source 110, thereby the heat production of LED light source 110 can directly be conducted by radiating block 130.
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 groove 145 comparatively closely.In addition, connecting portion 131 is by welding with groove 145 inwalls and bottom land, and than traditional connecting portion 131 one sides and radiating bottom plate 141 welding, area of dissipation is larger, and heat conduction efficiency is higher, and radiating effect is better.
In addition, on the substrate 120 of the present embodiment, the connecting portion 131 of radiating block 130, be respectively equipped with the through hole 201,203 passing for screw, accordingly, the position of radiating bottom plate 141 counterpart substrates 120 of heat sink 140 and the through hole 201,203 of radiating block 130 is provided with screw 205.Substrate 120, radiating block 130 and heat sink 140 can further pass through screws tighten, make contact between any two more tight, and heat conduction efficiency is higher.
First the LED light source radiating seat 100 of the present embodiment, when assembling, can be embedded into the connecting portion of radiating block 130 131 in the groove 145 of heat sink 140, and through hole is alignd with screw, then by modes such as Reflow Solderings, the two is welded as a whole; Then, by Circnit Layout, the circuit lead of LED light source 110 115 is welded on the copper layer 129 of substrate 120; By heat-conducting silicone grease, the aluminium base 123 that welds the substrate 120 of LED light source 110 is installed on radiating block 130 again, aligned through holes 201,203, and the cooling pad 113 of LED light source 110 and the protuberance 133 of radiating block 130 are closely engaged; Finally by mounting screw, substrate 120, radiating block 130 and heat sink 140 are fixed tightly in together.
LED light source radiating seat 100 is by closely engaging LED light source 110 with the protuberance 133 of radiating block 130, the heat that light source produces can directly be passed to heat sink 140 by radiating block 130, than traditional heat, via substrate 120, to radiating block 130, pass to again heat sink 140, reduced from LED light source 110 to the whole thermal-conduction resistance heat sink 140, thereby heat conduction efficiency is higher, radiating effect is better, can effectively reduce the junction temperature of LED light source 110, extends the service life of LED light source.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, 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 claims.
Claims (5)
1. a single led light source heat radiation seat, is characterized in that, comprising: for substrate, the radiating block being connected with described substrate of fixing single led light source and the heat sink being connected with described radiating block; On described substrate, offer porosely, described radiating block comprises the connecting portion being connected with described substrate and described heat sink and is located at the jut on described connecting portion, and described jut is fitted through described hole and described LED light source;
Described substrate comprises aluminium base successively, be located at adhesive layer on described aluminium base, be located at the insulating barrier on described adhesive layer and be located at the copper layer on described insulating barrier; The connecting portion of described radiating block and described aluminium base are affixed by heat-conducting silicone grease, and described LED light source is welded on described copper layer by the circuit lead of LED light source both sides;
Described heat sink comprises radiating bottom plate and a plurality of fins that extend to form from described radiating bottom plate one side, and described radiating block is connected with described radiating bottom plate; Described radiating bottom plate offers away from a side of described a plurality of fins the groove that holds described connecting portion, and the inwall of described connecting portion and described groove and bottom land weld by Reflow Soldering mode;
On described substrate and described connecting portion, be respectively equipped with through hole, the corresponding described substrate of radiating bottom plate of described heat sink, the lead to the hole site of radiating block are provided with screw, and described substrate, described radiating block and described heat sink are fixed together by the screw through described through hole and described screw.
2. single led light source heat radiation seat as claimed in claim 1, is characterized in that, described radiating block is copper radiating block.
3. single led light source heat radiation seat as claimed in claim 1, is characterized in that, the connecting portion of described substrate, radiating block and protuberance are discoideus; Groove on described hole and described radiating bottom plate is cylindrical; The diameter of substrate is identical with the diameter of described radiating block connecting portion, and the diameter in described hole is identical with the diameter of described protuberance, and the diameter of described groove is identical with the diameter of described connecting portion.
4. single led light source heat radiation seat as claimed in claim 1, is characterized in that, described heat sink is copper heat sink or aluminium heat sink.
5. a LED lamp, it is characterized in that, it comprises: a plurality of LED light sources and a plurality of LED light source radiating seat claimed in claim 1, and described LED light source comprises the cooling pad of luminescence chip, fixing described luminescence chip and the circuit lead being electrically connected with described luminescence chip of being drawn by described cooling pad; The jut of described radiating block and the laminating of described cooling pad, described circuit lead is fixed on the substrate of described 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN102454956A CN102454956A (en) | 2012-05-16 |
| CN102454956B true CN102454956B (en) | 2014-02-19 |
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| 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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Families Citing this family (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 |
| 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 |
| CN114905028B (en) * | 2022-05-19 | 2024-08-16 | 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 (3)
| 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 |
| CN201420960Y (en) * | 2009-03-20 | 2010-03-10 | 陈文进 | Modular LED device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI312046B (en) * | 2007-08-24 | 2009-07-11 | Ama Precision Inc | Led base with heat fins |
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- 2010-10-22 CN CN201010520677.XA patent/CN102454956B/en active Active
Patent Citations (3)
| 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 |
| CN201420960Y (en) * | 2009-03-20 | 2010-03-10 | 陈文进 | Modular LED device |
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| CN102454956A (en) | 2012-05-16 |
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