CN101737752A - Light-emitting diode light source module and optical engine thereof - Google Patents
Light-emitting diode light source module and optical engine thereof Download PDFInfo
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- CN101737752A CN101737752A CN200810176664A CN200810176664A CN101737752A CN 101737752 A CN101737752 A CN 101737752A CN 200810176664 A CN200810176664 A CN 200810176664A CN 200810176664 A CN200810176664 A CN 200810176664A CN 101737752 A CN101737752 A CN 101737752A
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Abstract
The invention provides a light-emitting diode light source module and an optical engine thereof, and the optical engine comprises a heat radiation device, a diode lamp strip and an optical element. The heat radiation device comprises a substrate and a plurality of heat radiation fins, and the plurality of heat radiation fins are vertically welded on one surface of the substrate. The diode lamp strip is fixed on the other surface of the substrate, and the heat radiation of the diode lamp strip can be realized with the help of the heat radiation fins. The optical element comprises an accommodating space for accommodating the diode lamp strip and is used for leading the light emission of the diode lamp strip for forming a preset light shape. The heat radiation device of the optical engine can flexibly increase and decrease the design of the heat radiation fins according to the heat radiation demands, thereby having the advantages of light weight, large effective heat radiation area and the like. In addition, all elements of the optical engine can be produced without using a precision mold, thereby having the advantage of low cost.
Description
Technical field
The present invention relates to a kind of light engine, particularly a kind of with light emitting diode (Light EmittingDiode; LED) be light source and light engine with lightweight heat abstractor.
Background technology
Because it is long and can not cause advantageous characteristic such as mercury pollution that light emitting diode has little power consumption, energy conversion efficiency height, life-span, makes light emitting diode become the first-selection that replaces traditional lighting.For example: the required power consumption of combined high-power light emitting diode road lamp is 1/4 of conventional incandescent street lamp, and the life-span more reaches 10 times, and the energy-conservation effect of this excellence is attracted attention widely, and all just in a planned way adopt to replace conventional road lamp various places.
Want to make light emitting diode to have widely and use, then need develop easy-to-use light fixture, some light emitting diode application luminaires are developed one after another for this reason.U.S. Patent Publication No. US2006/0,291, disclose for 201A1 number and utilize a side direction alignment light emitting device (Side Emitting Collimator), the light that it sends a light source module is done total reflection through a lens module with light and is penetrated from side direction, utilizes a reflecting mechanism with the light reflection upwards again, form parallel rays directive photographed object, wherein a light source cooperates a lens module, and this light source module dispels the heat with a heat dissipation metal piece, so as to reducing luminous diode temperature.
In addition, U.S. Patent Publication No. US 2007/0,217, disclose a kind of luminous plaque and light-emitting device (Illuminating Panel and Illuminating Device) for 192A1 number, it forms a light emitting source with a plurality of light emitting diodes, and utilize reflector that light source is concentrated forward and penetrate, light can be concentrated project photographed object.Luminous plaque is installed on light emitting source and reflector on one substrate to be formed.
In addition, U.S. Patent Publication No. US 2007/0,201, disclose a kind of light-emitting diode assembly (LED DEVICE FOR WIDE BEAM GENERATION) that can produce angle pencil of ray 225A1 number, each arrangement mode with matrix is arranged in the light emitting diode top on the printed circuit board with it, adds an optical lens.Subsequently, again the module that makes up is positioned over a support plate with heat sinking function.At last, a plastic cover and finish a light engine on the surface cover of this module.
Summary of the invention
The invention provides a kind of LED light-source module and light engine thereof, LED light-source module can utilize light engine that ray machine electricity integrates required and dispose quantity arbitrarily according to luminous flux.LED light-source module has systematized power supply, uses so allow the user can directly connect civil power.The heat abstractor tool of light engine can be according to radiating requirements the design of elasticity increase and decrease radiating fin, and the radiating fin of sheet makes the heat abstractor lightweight.
The light engine of the LED light-source module of one embodiment of the invention comprises a heat abstractor, a diode light bar and an optical element.Heat abstractor comprises a substrate and a plurality of radiating fin, and described a plurality of radiating fins uprightly are welded in a surface of this substrate.This diode light bar is fixed in another surface of this substrate, makes this diode light bar by this radiating fin heat radiation.This optical element has the accommodation space of ccontaining this diode light bar, and it is used for the luminous formation one predetermined light type with this diode light bar.
The LED light-source module of one embodiment of the invention comprises a framework and a plurality of described light engine.This framework comprises a plurality of reflectors, described a plurality of reflectors along perpendicular to its longitudinally direction be convexly set in surface of this framework and hollow out between adjacent described a plurality of reflectors.Described a plurality of light engine is installed accordingly in described a plurality of hollow out parts, wherein the forward optical axis direction reflection that the lateral light of this light engine can be by this reflecting plates of its both sides toward this light engine.
Cooperate the collocation pattern of a module, the present invention can directly apply to the light sources of many row's light emitting diodes compared to a known light source.In addition, be compared to and use known heat dissipation metal piece, heat abstractor of the present invention has the advantage of lightweight and big efficiently radiates heat area etc.Moreover each assembly of the light engine that the present invention discloses need not to use precision die to be made, so have advantage cheaply.
Description of drawings
Fig. 1 shows the schematic perspective view of the LED light-source module of one embodiment of the invention;
Fig. 2 shows the schematic diagram of the reflecting plate of one embodiment of the invention;
Fig. 3 shows the schematic diagram of the reflecting plate of another embodiment of the present invention;
Fig. 4 shows the decomposing schematic representation of the light engine of one embodiment of the invention;
Fig. 5 shows the constitutional diagram of the light engine of one embodiment of the invention;
Fig. 6 shows the right side view of the light engine of Fig. 5;
Fig. 7 shows the front view of the light engine of Fig. 5;
Fig. 8 to Figure 14 shows the light guide structure schematic diagram of the optical element of other embodiments of the invention;
Figure 15 shows the schematic diagram of the heat abstractor of one embodiment of the invention;
Figure 16 shows the schematic diagram of drive unit of the light-emitting diode light bar of one embodiment of the invention;
Figure 17 shows the schematic perspective view of the LED light-source module of another embodiment of the present invention; And
Figure 18 shows the schematic perspective view of the LED light-source module of further embodiment of this invention;
And the description of reference numerals in the above-mentioned accompanying drawing is as follows:
100 LED light-source modules
102 frameworks
104 light engines
106 reflecting plates
The 106a inclined-plane
The 106b vertical plane
402 heat abstractors
404 diode light bars
406 optical elements
408 substrates
410 radiating fins
412 surfaces
414 surfaces
416 perforates
418,420 screw holes
422 circuit boards
424 light emitting diodes
426 perforates
428,430 fixtures
702 accommodation spaces
802 first surfaces
804 second curved surfaces
806 first sides
808 second sides
810,812 incident lights
1502 fixed parts
1600 drive units
1602 power factor correction controllers
1604 AC-DC converters
1606 constant-current circuits
1700 LED light-source modules
1702 frameworks
1704 installed surfaces
1706 support members
1708 slottings
1800 LED light-source modules
1802 frameworks
1804,1806 bearings
1808 poles
1810 support members
The specific embodiment
Fig. 1 shows the schematic perspective view of the LED light-source module 100 of one embodiment of the invention.LED light-source module 100 comprises a framework 102 and a plurality of light engine 104.Be convexly equipped with the reflecting plate 106 of a plurality of strips on one surface of framework 102, it is being spaced on direction longitudinally perpendicular to it.Described a plurality of reflecting plate 106 intervals have the hollow out that is used for ccontaining light engine 104, and this configuration can be reflected by the forward optical axis direction by the reflecting plate 106 that is positioned at its both sides toward light engine 104 lateral light of each light engine 104.
With reference to Fig. 2 and Fig. 3, the reflecting surface of reflecting plate 106 can be two inclined-plane 106a or is constituted by an inclined-plane 106a and a vertical plane 106b.The angle of inclined-plane 106a cooperates the luminous situation of the lateral light of light engine 104, make the forward optical axis direction reflection of this lateral light by the reflecting plate 106 that is positioned at its both sides toward diode light engine 104, wherein the reflecting surface of reflecting plate 106 can form in the aluminium polishing.
The LED light-source module 100 that the present invention discloses is with a framework 102 and arrange a plurality of light engines 104 that are locked on the framework 102 and do simple combination and form.LED light-source module 100 can be expanded at an easy rate according to the luminous flux demand, only need select the framework 102 of suitable size for use, and light engine 104 lockings are got final product thereon.Framework 102 can be made in punching press, also can utilize aluminium extruded type spare to combine.
With reference to Fig. 4 and Fig. 5, light engine 104 comprises a heat abstractor 402, a diode light bar 404 and an optical element 406.Heat abstractor 402 comprises a substrate 408 and a plurality of radiating fins 410, and this radiating fin 410 is two separation members with this substrate 408.This radiating fin 410 is a sheet sheet material, and it can comprise the material that aluminium or copper etc. have high thermal conductivity coefficient and make with impact style.Described a plurality of radiating fin 410 be equidistantly, face to face and upright arrangement mode be bonded on the surface 412 of this substrate 408, whereby to provide light engine 104 enough heat loss through convection areas.Substrate 408 major axis both sides comprise two perforates 416 respectively, see through this perforate 416 light engine 104 is locked on the framework 102 of LED light-source module 100.In addition, the place comprises two-screw hole (418 and 420) in addition near substrate 408 major axis both ends, and it is respectively applied for locking diode light bar 404 and optical element 406.
With reference to Fig. 4 to Fig. 6, diode light bar 404 forms for vertical arrangement setting of a plurality of light emitting diodes 424 along a strip circuit board 422, and a plurality of light emitting diodes 424 can be lined up and comprise at least one row.This circuit board 422 can be metallic core circuit board (Metal Core Printed Circuit Board).The two ends of diode light bar 404 respectively have perforate 426, and it is used for this diode light bar 404 is locked in the surface 414 of substrate 408.
With reference to Fig. 4 to Fig. 7, optical element 406 is located at the emission side of diode light bar 404 and is fixed on the substrate 408 with fixture 428, optical element 406 is light guide structures of a strip, has an accommodation space 702, it is used for ccontaining diode light bar 404 (as shown in Figure 7), this accommodation space 702 injects a packing colloid (comprising silica gel and epoxy resin), to reach the purpose of waterproof after assembling.The refractive index of this packing colloid is between the refractive index of the refractive index of the used packing colloid of light emitting diode 424 and optical element 406, so can reduce Fresnel loss (Fresnel Loss) and critical angle loss (Critical Angle Loss), take out efficient to improve optics.In the embodiment of the invention, this fixture 428 comprises screw.
With reference to Fig. 6, the light guide structure of optical element 406 can be a symmetrical structure, and it comprises the curved surface of a plurality of strips.Can produce the phenomenon of total reflection based on refractive index difference between different medium, the combination of above-mentioned curved surface can make the light path of the luminous change part light of the high light emitting diode of directive property 424, but thereby reduces the generation dazzle light, obtains the bigger and uniform illumination of area and form required light type.
Fig. 8 to 14 shows the light guide structure schematic diagram of the optical element of other embodiments of the invention.With reference to Fig. 8, the strip light guide structure comprises a first surface 802, one second curved surface 804, one first side 806 and one second side 808, and this first side 806 and this second side 808 are the inclined plane.First surface 802 and this second curved surface 804 cave in from these diode light bar 404 centre of two side direction of this diode light bar 404 respectively, and above these diode light bar 404 centre, be connected, wherein this first surface 802 and this second curved surface 804 in this junction the plane, forward optical axis place with an angle and this diode light bar 404 tangent, this forward optical axis is defined as the direction on vertical this plane, light emitting diode 424 place.The light that light emitting diode is launched shines on first surface 802, second curved surface 804, first side 806 and second side 808, because incidence angle makes this irradiates light turn to because of reflection greater than the cause of critical angle.According to embodiment, the incident light 810 of irradiation first surface 802 changes its direction of advance and penetrates from first side 806 after total reflection; The incident light 812 that shines second side 808 penetrates from second curved surface, 804 forwards after total reflection.Side direction light from first side 806 and 808 ejaculations of second side can be reflected into forward light by reflecting plate 106.
According to required output light type, change the cross sectional shape (shown in Fig. 8 to 14) of the light guide structure of optical element 406, the light that light emitting diode is launched forms the light type of this output.The design of the light type of output can be according to the road lamplight type requirements such as arterial highway, domestic residential area, other countries' through street and arterial highway, shopping centre in the road lighting standard.Light guide structure also can be designed to single shape except comprising a plurality of extra curvatures, square or arc as shown in figure 14 as shown in figure 13.
Figure 15 shows the schematic diagram of the heat abstractor 402 of one embodiment of the invention.Heat abstractor 402 comprises a substrate 408 and a plurality of radiating fins 410, and this radiating fin 410 is two separation members with this substrate 408.Described a plurality of radiating fin 410 can be arranged on the substrate 408 equally spacedly.Substrate 408 comprises the material that use aluminium or copper etc. have high thermal conductivity coefficient with radiating fin 410.Radiating fin 410 can be by the mode of welding, to be positioned on radiating fin 410 1 edges and should be welded on the substrate 408 with the fixed part 1502 that radiating fin 410 is an angle, the mode of this welding comprises surperficial adhesion technology (SurfaceMount Technology; SMT).Radiating fin 410 can punching press mode make the mode moulding of the then available aluminium extruded type processing of substrate 408.Because radiating fin 410 need not pass through the extrusion die tool, so its thickness can be thinner.For example: the thickness of the radiating fin that aluminium extruded type processing is made is generally all greater than 1 centimetre, and the thickness of the radiating fin 410 of the embodiment of the invention then can be less than 1 centimetre.
In the embodiment of the invention, light-emitting diode light bar 100 is to fix on the surface (as shown in Figure 4) that substrate 408 is installed with respect to radiating fin 410 with fixture 430 lockings, wherein 408 of light-emitting diode light bar 100 and substrates then can be coated with heat-conducting cream (not shown), to reduce the thermal resistance (Thermal Resistance) of 408 of light-emitting diode light bar 100 and substrates.This fixture 430 of locking light-emitting diode light bar 100 comprises screw.
Figure 16 shows the schematic diagram of drive unit 1600 of the light-emitting diode light bar 100 of one embodiment of the invention.The drive unit 1600 of light-emitting diode light bar 100 comprises power factor correction controller 1602, AC-DC converter 1604 and constant-current circuit 1606, it provides the direct current of light-emitting diode light bar 100 to decide electric current in order to convert 95～230 volts civil power to one, wherein utilize power factor correction controller 1602 to improve energy conversion efficiency, and lower harm to public's supply network and light-emitting diode light bar 100, and this power factor correction controller 1602 can be active formula (Active) or passive type (Passive) power factor correction controller.The invention provides the drive unit 1600 of 100 1 kinds of systematizations of light-emitting diode light bar, integration, the user only need give 100～230 volts alternating current and can light.
Figure 17 shows the schematic perspective view of the LED light-source module 1700 of another embodiment of the present invention.LED light-source module 1700 comprises a framework 1702 and a plurality of light engine 104.This framework 1702 is a plate-like piece, and it comprises a plurality of and these light engine 104 corresponding slottings 1708.Respectively this slotting 1708 makes the light emitting diode (not shown) of the light engine 104 after the installation can expose to the opposite face of installed surface 1704.One avris of this framework 1702, the position can be provided for supporting the support member 1706 of this LED light-source module 1700 at vertical place of light engine 104.The material of framework 1702 is metals, and it comprises aluminium, copper, iron, ferroalloy, almag and stainless steel etc.
Figure 18 shows the schematic perspective view of the LED light-source module 1800 of further embodiment of this invention.LED light-source module 1800 comprises a framework 1802 and a plurality of light engine 104.Framework 1802 comprises two bearings 1804,1806, and respectively these light engine 104 axial two ends are individually fixed on two bearings 1804,1806 that separate, be arranged in parallel, promptly are combined into LED light-source module 1800.This kind LED light-source module 1800 has simplicity of design (only needing light engine 104 two ends fixing respectively), expand ( bearing 1804,1806 length can be reduced arbitrarily, need not additional processing) easily and advantage in light weight etc.Strengthen the support strength of 1806 of bearing 1804 and bearings as need, then can at least one pole 1808 be set according to required.Bearing the 1804, the 1806th, metal preferably uses lightweight metal material; The pole 1808 suitable higher metals of working strength are to provide bigger support strength.So matching design can make LED light-source module 1800 have light-weighted advantage.One of two bearings 1804,1806 person more can be provided with a support member 1810 that is used to support this LED light-source module 1800.
Technology contents of the present invention and technical characterstic disclose as above, yet those of ordinary skill in the art still may be based on teaching of the present invention and announcement and done various replacement and the modifications that do not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the scope that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by appended claim.
Claims (10)
1. the light engine of a LED light-source module comprises:
One heat abstractor comprises a substrate and a plurality of radiating fin, and described a plurality of radiating fins uprightly are welded in a surface of this substrate;
One diode light bar is fixed in another surface of this substrate, makes this diode light bar by this radiating fin heat radiation; And
One optical element has the accommodation space of ccontaining this diode light bar, and this optical element is used for the luminous formation one predetermined light type with this diode light bar.
2. light engine as claimed in claim 1, wherein above-mentioned radiating fin is the sheet sheet material made with impact style or makes with aluminium or copper punching press, above-mentioned radiating fin and this substrate with gold, silver, nickel billon, NiPdAu alloy, tin, sn-ag alloy, gun-metal, and one of them of SAC alloy weld, and weld with surface adhesion technology between this radiating fin and this substrate.
3. light engine as claimed in claim 1, the circuit board of wherein above-mentioned diode light bar is the metallic core circuit board, this accommodation space injects a packing colloid in assembling back, the refractive index of this packing colloid is between the refractive index of the refractive index of the used packing colloid of the light emitting diode of this diode light bar and this optical element.
4. light engine as claimed in claim 1, also comprise one in order to drive the drive unit of this diode light bar, wherein this optical element comprises the light guide structure of a strip, this light guide structure has respectively from this diode light bar centre depression of two side direction of this diode light bar and a first surface and one second curved surface that is connected, wherein this first surface and this second curved surface in this junction the plane, forward optical axis place with an angle and this diode light bar tangent, this light guide structure comprises one first side and one second side in addition, and this first side and this second side are the inclined plane.
5. LED light-source module comprises:
One framework comprises a plurality of reflectors, described a plurality of reflectors along perpendicular to its longitudinally direction be convexly set in a surface of this framework, hollow out between adjacent described a plurality of reflectors; And
A plurality of light engines are installed accordingly in described hollow out part, and it comprises:
One heat abstractor comprises a substrate and a plurality of radiating fin, and described a plurality of radiating fins uprightly are welded in a surface of this substrate;
One diode light bar is fixed in another surface of this substrate, makes this diode light bar by this radiating fin heat radiation; And
One optical element has the accommodation space of ccontaining this diode light bar, and this optical element is used for the luminous formation one predetermined light type with this diode light bar;
The wherein forward optical axis direction reflection that the lateral light of this light engine can be by this reflecting plates of its both sides toward this light engine.
6. LED light-source module as claimed in claim 5, wherein above-mentioned reflection of reflecting face are the combination of two inclined-planes or an inclined-plane and a vertical plane, and this reflecting surface is formed with the aluminium polishing.
7. LED light-source module as claimed in claim 5, wherein above-mentioned radiating fin is the sheet sheet material made with impact style or makes with aluminium or copper punching press, this radiating fin and this substrate be with gold, silver, nickel billon, NiPdAu alloy, tin, sn-ag alloy, gun-metal, and one of them of SAC alloy weld, weld with surface adhesion technology between this substrate and this radiating fin.
8. LED light-source module as claimed in claim 5, also comprise one in order to drive the drive unit of this diode light bar, wherein the circuit board of this diode light bar is the metallic core circuit board, this accommodation space injects a packing colloid in assembling back, the refractive index of this packing colloid is between the refractive index of the refractive index of the used packing colloid of the light emitting diode of this diode light bar and this optical element.
9. LED light-source module as claimed in claim 5, wherein above-mentioned optical element comprises the light guide structure of a strip, this light guide structure has respectively from this diode light bar centre depression of two side direction of this diode light bar and a first surface and one second curved surface that is connected, wherein this first surface and this second curved surface in this junction the plane, forward optical axis place with an angle and this diode light bar tangent, this light guide structure comprises one first side and one second side in addition, and this first side and this second side are the inclined plane.
10. LED light-source module as claimed in claim 5, wherein above-mentioned framework is one to have the plate-like piece with the corresponding slotting of described a plurality of light engines, wherein this framework comprises two bearings, described bearing branch is arranged, the two ends of described a plurality of light engines are individually fixed on this bearing, and wherein this framework is made with punching press or is that aluminium extruded type spare combines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810176664A CN101737752A (en) | 2008-11-14 | 2008-11-14 | Light-emitting diode light source module and optical engine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810176664A CN101737752A (en) | 2008-11-14 | 2008-11-14 | Light-emitting diode light source module and optical engine thereof |
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| CN101737752A true CN101737752A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810176664A Pending CN101737752A (en) | 2008-11-14 | 2008-11-14 | Light-emitting diode light source module and optical engine thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506340A (en) * | 2011-11-21 | 2012-06-20 | 苏睿 | LED light bar |
| CN103119354A (en) * | 2010-09-27 | 2013-05-22 | 宗拓贝尔照明器材有限公司 | Arrangement for light emission |
| CN105444040A (en) * | 2015-12-14 | 2016-03-30 | 江门市杰斯米亚照明有限公司 | High-power LED lamp tube and packaging technique |
| CN109058854A (en) * | 2018-08-02 | 2018-12-21 | 徐州鹰格电子技术有限公司 | A kind of moisture-proof freezing lamp of freezer |
-
2008
- 2008-11-14 CN CN200810176664A patent/CN101737752A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103119354A (en) * | 2010-09-27 | 2013-05-22 | 宗拓贝尔照明器材有限公司 | Arrangement for light emission |
| CN102506340A (en) * | 2011-11-21 | 2012-06-20 | 苏睿 | LED light bar |
| CN105444040A (en) * | 2015-12-14 | 2016-03-30 | 江门市杰斯米亚照明有限公司 | High-power LED lamp tube and packaging technique |
| CN109058854A (en) * | 2018-08-02 | 2018-12-21 | 徐州鹰格电子技术有限公司 | A kind of moisture-proof freezing lamp of freezer |
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