CN102478171B - LED light lamp - Google Patents
LED light lamp Download PDFInfo
- Publication number
- CN102478171B CN102478171B CN201110240630.2A CN201110240630A CN102478171B CN 102478171 B CN102478171 B CN 102478171B CN 201110240630 A CN201110240630 A CN 201110240630A CN 102478171 B CN102478171 B CN 102478171B
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- Prior art keywords
- lampshade
- radiating piece
- edge
- unit
- opening
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- 239000000463 material Substances 0.000 claims abstract description 46
- 238000004020 luminiscence type Methods 0.000 claims abstract description 35
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 230000033228 biological regulation Effects 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 13
- 230000000875 corresponding Effects 0.000 claims description 9
- XOLBLPGZBRYERU-UHFFFAOYSA-N Tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- HFGPZNIAWCZYJU-UHFFFAOYSA-N Lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 4
- 229910026161 MgAl2O4 Inorganic materials 0.000 claims description 4
- PIGFYZPCRLYGLF-UHFFFAOYSA-N aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052596 spinel Inorganic materials 0.000 claims description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L Calcium fluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N TiO Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 230000000149 penetrating Effects 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001929 titanium oxide Inorganic materials 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 230000002093 peripheral Effects 0.000 claims 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 16
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 210000003141 Lower Extremity Anatomy 0.000 description 6
- 229910001884 aluminium oxide Inorganic materials 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 229910017109 AlON Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000003287 optical Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N [O--].[Zn++].[In+3] Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000003442 weekly Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Abstract
The present invention relates to a kind of LED light lamp, including: luminescence unit, it includes the circuit substrate that one or more LED and the one or more LED are mounted thereon；Radiating piece, luminescence unit is mounted thereon, and the heat that this radiating piece dissipation luminescence unit produces；And transparent lamp shade, it directly contacts radiating piece and engages with radiating piece, in order to covering luminescence unit, wherein, lampshade is by having equal to or more than 9W/m K‑1Thermal conductivity light transmissive material formed.
Description
The cross reference of related application
This application claims the Korean Patent Shen submitted on November 30th, 2010 in Korean Intellectual Property Office
Please the rights and interests of No.10-2010-0120665, the disclosure of which is all hereby incorporated by by quoting as proof.
Technical field
It relates to a kind of light emitting diode (LED) lamp.
Background technology
Light emitting diode (LED) is can to realize shades of colour via the PN junction of compound semiconductor
The semiconductor device of light.LED has longer service life, can be miniaturized, and has lighter
Weight, and due to they have the strongest directivity for light and can be with low voltage drive.And,
Due to LED very shock resistance and vibration, it is not necessary to preheating time and complicated drive scheme, and
Various forms can be packaged into, so LED can be used in various application scenario.
Recently, have been carried out various trial, to replace traditional lamp, including white heat by LED
Electric light, fluorescent lamp, Halogen light etc..
Summary of the invention
In order to replace traditional lamp, such as, incandescent lamp, fluorescence with light emitting diode (LED) lamp
Lamp, Halogen light etc., it is necessary to by assuring that heat dissipation characteristics realizes having high efficiency and long life
Luminescent device, and it must is fulfilled for the specification of the size and dimension of the most traditional lamp.Electricity when supply
When power is low, sufficiently heat radiation can be realized in there is the LED of finite size and shape, but,
Increase along with the electric power of supply, it is difficult to guarantee sufficiently to dispel the heat in this LED.
A kind of LED is provided, is made by increasing heat radiation area in limited size and dimension
LED has the heat radiation of improvement.
Other aspects partly will illustrate in the following description, and partly from description will aobvious and
It is clear to, or can be learnt by the practice of embodiment that proposed.
According to an aspect of the present invention, LED includes: luminescence unit, and it includes one or more
The circuit substrate that LED and the one or more LED are mounted thereon；
Radiating piece, luminescence unit is mounted thereon, and the heat that this radiating piece dissipation luminescence unit produces；
And transparent lamp shade, it directly contacts radiating piece and engages with radiating piece, in order to cover luminescence unit,
Wherein, lampshade is by having equal to or more than 9W/m K-1Thermal conductivity light transmissive material formed.
Lampshade can be by having equal to or more than 9W/m K-1Thermal conductivity ceramic material formed.Described
Ceramic material can include from PLZT, CaF2、Y2O3, YAG, polymorph A ION and MgAl2O4Composition
Group in select at least one material.
Radiating piece can have the end of the edge of opening with lampshade and carry out the surface contact list that surface contacts
Unit.
Lampshade can include that the angle of radiation of the angle of radiation of the light sent from luminescence unit for regulation is adjusted
Joint unit.
According to a further aspect in the invention, LED includes: luminescence unit, and it includes one or many
The circuit base that individual LED and the one or more LED are mounted thereon
Sheet；Radiating piece, luminescence unit is mounted thereon, and the heat that this radiating piece dissipation luminescence unit produces
Amount；And transparent lamp shade, it engages with radiating piece and covers luminescence unit, wherein, lampshade include by
The cover of light transmissive material formation and heat-conducting layer, heat-conducting layer has one or more layers and directly contacts with radiating piece,
And be formed on the outer surface of cover.
Heat-conducting layer can comprise ITO, SnO2, ZnO, IZO, CNT or Graphene (graphene).
Heat-conducting layer is formed as on the end of the edge of opening of lampshade extending, and radiating piece can have
The surface contact unit that surface contacts is carried out with the heat-conducting layer of the end being formed at edge of opening.
Lampshade can include that the angle of radiation of the angle of radiation of the light sent from luminescence unit for regulation is adjusted
Joint unit.
According to a further aspect in the invention, LED includes: luminescence unit, and it includes one or many
The circuit base that individual LED and the one or more LED are mounted thereon
Sheet；Radiating piece, luminescence unit is mounted thereon, and the heat that this radiating piece dissipation luminescence unit produces
Amount；And transparent lamp shade, it directly contacts radiating piece and engages with radiating piece, in order to cover luminous single
Unit, wherein, lampshade is formed by the material obtained by being distributed heat filling in light penetrating copolymer.
Heat filling can be light transmitting filler.
Heat filling can comprise from by CNT, Graphene, titanium oxide, zinc oxide, zirconium oxide,
At least one granule selected in the group of aluminium nitride and aluminium oxide composition.
Heat filling is distributed in light penetrating copolymer, and can have and be coated with diffusion barrier (diffusion
Shell) pearl (bead) form.
Radiating piece can have the edge of opening with lampshade and carry out the surface contact unit that surface contacts.
Lampshade can include that the angle of radiation of the angle of radiation of the light sent from luminescence unit for regulation is adjusted
Joint unit.
Accompanying drawing explanation
From below in conjunction with the accompanying drawing description to embodiment, these and/or other aspect will become aobvious
And be clear to and be easier to understand, in accompanying drawing:
Fig. 1 is the decomposition diagram of light emitting diode (LED) lamp according to an embodiment of the present invention；
Fig. 2 is the side view of the LED of Fig. 1；
Fig. 3 be Fig. 1 LED in the sectional view of an example that engages of lampshade and radiating piece；
Fig. 4 be Fig. 1 LED in the sectional view of another example that engages of lampshade and radiating piece；
Fig. 5 illustrates an example of the filler of bead form；
Fig. 6 is the sectional view of the LED according to another embodiment of the present invention；
Fig. 7 be Fig. 6 LED in the sectional view of an example that engages of lampshade and radiating piece；
Fig. 8 be Fig. 6 LED in the sectional view of another example that engages of lampshade and radiating piece；
Fig. 9 is the sectional view of the LED of Halogen light type according to an embodiment of the present invention；With
And
Figure 10 is the exploded perspective of the LED of fluorescent lamp type according to an embodiment of the present invention
Figure.
Detailed description of the invention
Embodiment will be described in detail now, shown in the drawings of the example of embodiment.?
In accompanying drawing, the similar reference number in figure represents similar element, in order to clear, may be exaggerated
The size of each parts.
Fig. 1 and Fig. 2 is that light emitting diode (LED) according to an embodiment of the present invention is shown respectively
The decomposition diagram of lamp and the diagram of side view.The LED of Fig. 1 and Fig. 2 meets incandescent lamp
Specification.
With reference to Fig. 1 and Fig. 2, LED 10 is arranged on circuit substrate 20.LED sends out
Optical device 10 is formed as utilizing lead frame, molding frame, phosphor and printing opacity to fill out through free module preparation method
Fill material and carry out packaging LED chips and the LED encapsulation piece that obtains, then, circuit can be installed in
On substrate 20.And, LED 10 is formed as being coated with the LED chip of phosphor,
Then, available terminal conjunction method is installed on circuit substrate 20.And, LED light emitter
Part 10 is formed as being coated with the LED chip of phosphor, then, and can be according to flip-chip method by it
It is arranged on circuit substrate 20.Circuit substrate 20 can be metal substrate or have metal-cored circuit
Substrate, in order to improve heat dissipation characteristics.
The circuit substrate 20 being provided with LED 10 on it is mounted on radiating piece 30
On the installation unit 31 of top.Radiating piece 30 is used for produced in LED luminescence dress device 10
Heat is dissipated to outside, and is formed by metal material, such as, has the aluminum of high heat conductance.Heat radiation
The outer surface 32 of part 30 is exposed to air, and has uneven shape, to increase radiating surface
Long-pending.Installation unit 31 may utilize multiple fin 33 and is connected with outer surface 32.
Power circuit unit 40 will meet socket unit 60 and the circuit substrate of the specification of incandescent lamp
20 electrical connections.Drive circuit (not shown) is arranged in power circuit unit 40, in order to by profit
LED 10 is driven with the electric power supplied via socket unit 60.Insulating part 50 surrounds
Power circuit unit 40, and between radiating piece 30 and power circuit unit 40 and between radiating piece
Between 30 and socket unit 60.
Lampshade 70 is the diffuser with hollow domed shape, and engages with radiating piece 30, to cover
Including LED 10 and the luminescence unit of circuit substrate 20.Lampshade 70 is used for keeping lamp
Shape also protects LED 10.And, lampshade 70 can be milky cover, with diffusion
Light.With reference to Fig. 3, the top of radiating piece 30 can be formed with engagement groove 34, and, lampshade 70
Engage with engagement groove 34.Such as, as it is shown on figure 3, the edge 71 of lower open at lampshade 70
In can be formed with spiral protrusion 72, and, engagement groove 34 can have and spiral protrusion 72 complementation
Shape.But, the method that lampshade 70 and radiating piece 30 engage is not limited to this, it be also possible to use hasp
Matching method etc..
The heat produced when LED 10 is driven is transferred to heat radiation via circuit substrate 20
Part 30, and it is dissipated to outside via the outer surface 32 being exposed to air of radiating piece 30.
In order to replace traditional lamp, such as, incandescent lamp, fluorescent lamp, Halogen light etc. by LED,
Must be by assuring that heat dissipation characteristics and meet traditional lamp and make for the specification of size and dimension
LED has high efficiency and long life.Specifically, along with supplying the electric power to LED
Increasing, LED should have sufficiently heat radiation in limited size and dimension, in order to realizes high efficiency
And the long life.
Effective area of dissipation of the LED of present embodiment is actually by the outer surface of radiating piece 30
The restriction of the surface area of 32.For increasing heat radiation area, can be at the outer surface 32 of radiating piece 30
Place forms multiple concavo-convex unit.But, consumer may not agree with this design, when concavo-convex unit by
When being covered with dust in life-time service, this design is it is also possible that radiating effect is deteriorated.
Be commonly used to form the glass of lampshade 70, resin material based on Merlon (PC) and
Resin based on polymethyl methacrylate (PMMA) has 0.3 to 3W/m K-1Thermal conductivity,
The material of this thermal conductivity heat for producing in dissipation LED 10 is the most not enough.Root
It is characterised by according to the LED of present embodiment, uses the lamp of most of outer surface with LED
Cover 70 is as effective area of dissipation.The lampshade 70 of LED is by having equal to or more than 9W/m K-1's
The light transmissive material of thermal conductivity is formed.The thermal conductivity of lampshade 70 is than being formed by normal transparent resin material
The thermal conductivity of lampshade is high 3 to 30 times.
In order to contribute to that heat is transferred to lampshade 70, radiating piece 30 and lampshade 70 from radiating piece 30
Surface contact can be carried out each other.In order to increase area of heat transfer, as it is shown on figure 3, radiating piece 30 can
The end 73 with the edge 71 with lampshade 70 carries out the surface contact unit 35 that surface contacts.And
And, in order to increase area of heat transfer further, the lower limb 71 of lampshade 70 can be wrapped by radiating piece 30
Enclose.Such as, as shown in Figure 4, the end 73 of the lower limb 71 of lampshade 70 can have circular protrusion
Shape, and surface contact unit 35 can have circular concave shape.The lower limb of lampshade 70 71 weeks
The ambient conditions of the radiating piece 30 enclosed can be not limited to the round-shaped of Fig. 4.Obviously, lampshade 70 times
The end 73 at edge 71 can have circular concave shape, and surface contact unit 35 can have and is somebody's turn to do
The circular protrusion shape that circular concave shape is corresponding.
The heat that LED 10 produces is transferred to radiating piece 30 via circuit substrate 20.As
Indicated by arrow A in Fig. 2, heat is via the outer weekly form of the radiating piece 30 with concavo-convex unit
Face 32 is dissipated in air.And, as indicated by the arrow B in Fig. 2, heat be transferred to
The lampshade 70 that radiating piece 30 engages.As indicated by the arrow C in Fig. 2, heat via with air
The outer surface of the lampshade 70 of contact is dissipated in air.In this way, the periphery of not only radiating piece 30
Surface 32 and the outer surface of lampshade 70 is used as effective area of dissipation, thus LED can be improved
The heat sinking function of lamp.
Have equal to or more than 9W/m K-1The example of light transmissive material of thermal conductivity can be pottery
Ceramic material.Such as, by aluminium oxide (Al2O3) Molded body that formed has light transmission, and its
Thermal conductivity is more much higher than the thermal conductivity of common light transmissive material.Such as, at a temperature of 25 DEG C, α-Al2O3
Thermal conductivity be about 33W/m K-1.Therefore, α-Al2O3May serve as the heat radiation of lampshade 70
Material.
But, the light transmissive material as lampshade 70 is not limited to aluminium oxide.Such as, the material of lampshade 70
May is that the lead zirconate titanate (PLZT) of the polarization being used as optical communication material due to its photoelectric characteristic；
CaF2、Y2O3And YAG, they are the High-quality transparent ceramic materials with high cubic crystal；Polycrystalline
AlON；MgAl2O4Deng.By regulation Al2O3With the ratio of components of AlN and be used as sintered material
Y2O3, the amount of BN, CaO, MgO etc. form AlON.According to described ratio of components and amount, permissible
Use the material with high heat conductance and high transmission rate.The AlON manufactured by Surmet company has
AL23-1/3xO27+xN5-xThe ratio of components of (0.49 ＜ x ＜ 2), and have 9.7 at a temperature of 75 DEG C
W/m·K-1Thermal conductivity, and, MgAl2O4(being manufactured by Surmet company) is the temperature of 25 DEG C
Under there is 25W/m K-1Thermal conductivity, and under the wavelength light of 650nm and the thickness of 4mm,
There is the light transmittance of about 76%.
Lampshade 70 can be formed by the material obtained by being distributed heat filling in transmitting substrate.
Such as, transmitting substrate can include glass, the resin material of Based PC or resin based on PMMA.
Filler can be transparent material, but is not limited to this.Such as, including CNT, Graphene etc.
Grain can be used as filler.And, including titanium oxide, zinc oxide, zirconium oxide, aluminium nitride, aluminium oxide etc.
Granule can be used as filler.Lampshade 70 can be formed: according to such as by the material that use is achieved in that
The method of moulding of injection molding, blow moulding etc., by least one distribution of particles in transmitting substrate.Heat conduction
Filler can form heat conduction network in transmitting substrate, therefore, can increase the thermal conductivity of lampshade 70.Cause
This, by utilizing the outer surface of lampshade 70 as effective area of dissipation, can improve dissipating of LED
Hot merit energy.
Filler can be coated with coating material, then, and can be by filler distribution in transmitting substrate.Namely
Say, as it is shown in figure 5, include the filler as core and be covered with the pearl of diffusion barrier and can be distributed in printing opacity
In base material.According to the type of material, filler is likely to be due to absorbing light and reduces optical efficiency, so can
By using diffusion barrier to spread/reflect brokenly light, thus the light caused due to filler can be prevented
Absorbing, on the other hand, by utilizing the thermal conductivity of filler, the outer surface of lampshade 70 can be used as effectively
Area of dissipation.The material of diffusion barrier is not particularly limited, but can use and have with transmitting substrate not
Any material of same refractive index.Such as, use the material of diffusion barrier and from above-mentioned printing opacity combinedly
The transmitting substrate selected in base material.
With reference to Fig. 6, lampshade 70 can include diffuser 74 and be formed on the outer surface of diffuser 74
Heat-conducting layer 75.Such as, diffuser 74 can be formed by following a kind of material, including glass, based on
The resin material of PC or resin based on PMMA.Heat-conducting layer 75 can be formed by following a kind of material,
Including tin indium oxide (ITO), SnO2, ZnO, indium zinc oxide (IZO), CNT, Graphene
Deng.ITO、SnO2, ZnO and IZO there is extraordinary electrical conductivity and thermal conductivity, therefore, they can
With the electrode material acting on flat panel display equipment.CNT and Graphene also have extraordinary heat
Conductance.Above-mentioned material can be coated on the outer surface of diffuser 74 by performing sputtering, deposition etc.
Form heat-conducting layer 75.
According to said structure, the heat produced in LED 10 passes via circuit substrate 20
It is handed to radiating piece 30.Heat is dissipated to via the outer surface 32 of the radiating piece 30 with concavo-convex unit
In air.And, heat is transferred to the heat-conducting layer 75 of the lampshade 70 engaged with radiating piece 30, then
It is dissipated in air.In this way, by utilize the outer surface of lampshade 70 as effective area of dissipation,
The heat sinking function of LED can be improved.
Due between heat-conducting layer 75 and radiating piece 30 directly contact, can realize from radiating piece 30 to
The heat transfer of lampshade 70.With reference to Fig. 7, due to the heat-conducting layer 75 in engagement groove 34 and radiating piece
Contact between 30, can be transferred to lampshade 70 by heat from radiating piece 30.In order to increase thermal transfer surface
Long-pending, as it is shown in fig. 7, heat-conducting layer 75 can be formed, make it in the end at the edge 71 of lampshade 70 simultaneously
Extend on 73, and, radiating piece 30 can have the surface contact unit 35 contacted with end 73.
And, in order to increase area of heat transfer further, the lower limb 71 of lampshade 70 can be by radiating piece 30
Surround.As shown in Figure 8, it is formed with the end of the lower limb 71 of the lampshade 70 of heat-conducting layer 75
The 73 protrusion shapes can with circle, and surface contact unit 35 can have and circular protrusion shape phase
Corresponding circular concave shape.Obviously, the end 73 of the lower limb 71 of lampshade 70 can have circle
Concave shape, and surface contact unit 35 can to have the circle corresponding with this circle concave shape convex
Go out shape.
According to said structure, lampshade is by having equal to or more than 9W/m K-1The printing opacity material of thermal conductivity
Material is formed, the material obtained by being distributed heat filling in transmitting substrate formed, or have
The diffuser of heat-conducting layer it is formed with on it, thus the not only outer surface of radiating piece but also the appearance of lampshade
Face is used as effective area of dissipation, therefore can improve the heat sinking function of LED.Therefore, it can obtain
Must have the LED of high efficiency and long life, described LED meets the specification of traditional lamp,
And do not use the method utilizing ventilation installation to carry out forcing cooling.And, by making radiating piece and lamp
Cover is arranged to be brought into surface contact with each other, or by manufacturing round-shaped contact surface, can improve from dissipating
Warmware is to the efficiency of the heat transfer of lampshade, thus can improve heat sinking function.
Although present embodiment describes the LED of fluorescence type of electric lamps, but the invention is not restricted to this.
Such as, with reference to Fig. 9, LED can be such LED (parabola aluminum reflector (PAR)
Reflector (MR) series of serial and multiple reflecting surface composition), its replaceable Halogen light also includes LED
Luminescent device 110, circuit substrate 120, radiating piece 130 and lampshade 170.In the LED of Fig. 9,
Eliminate via circuit substrate 120 to LED 110 supply electric power power circuit unit,
Insulating part and socket unit.Lampshade 170 is integrally formed with angle of radiation regulation unit 171, this spoke
Penetrate angle regulating unit for regulating the angle of radiation of the light sent from LED 110.Although
Angle of radiation regulation unit 171 has lens shape, but present embodiment is not limited to this.Such as,
Though the most not shown, angle of radiation regulation unit 171 is formed as reflector element, with
Just the light sent from LED 110 with desired angle reflection.As shown in Figures 1 to 8,
Lampshade 170 can be by having equal to or more than 9W/m K-1The light transmissive material of thermal conductivity formed, can be by
In transmitting substrate, it is distributed heat filling and the material that obtains is formed, or can have on it to be formed and lead
The diffuser of thermosphere.
And, by having equal to or more than 9W/m K-1Thermal conductivity light transmissive material formed, by
Transmitting substrate is distributed heat filling and the material that obtains is formed, or has on it and be formed with heat-conducting layer
The lampshade of diffuser can be used as including radiating piece 230, circuit substrate 220 and LED 210
The lampshade 270 of LED of incandescent lamp type, as shown in Figure 10.In the LED of Figure 10,
Eliminate via circuit substrate 220 to LED 210 supply electric power power circuit unit,
Insulating part and socket unit.
Should be understood that in the sense that descriptive, only consider exemplary embodiment party as described herein
Formula rather than for the purpose limited.Typically, should be by the feature in each embodiment or aspect
Description be thought of as other the similar feature or the aspect that can be used in other embodiment.
Claims (12)
1. a LED light lamp, including:
Luminescence unit, it includes one or more LED and one or many
The circuit substrate that individual LED is mounted thereon；
Radiating piece, described luminescence unit is mounted thereon, and described radiating piece dissipates described
The heat that luminescence unit produces；And
Transparent lamp shade, it directly contacts described radiating piece and engages with described radiating piece, in order to
Cover described luminescence unit,
Wherein, described radiating piece includes: installation unit, and it is arranged in centre and supports
Described circuit substrate；Outer surface, its surround described installation unit and with described installation unit
Spaced apart；And multiple fin, described installation unit is connected by it with described outer surface,
And the plurality of fin is spaced apart from each other,
Described lampshade is by having equal to or more than 9W/m K-1Thermal conductivity light transmissive material formed,
Described radiating piece has the end of the edge of opening with described lampshade and carries out what surface contacted
Surface contact unit, inner peripheral surface relative with described outer surface in the top of described radiating piece
Surround the edge of opening of described lampshade and engage with the edge of opening of described lampshade, and described table
Face osculating element adjoins with described inner peripheral surface,
The end of the edge of opening of described lampshade has circular shape of protruding, the contact of described surface
Unit has the circular concave shape corresponding with the shape of the end of the edge of opening of described lampshade
Shape；Or, the end of the edge of opening of described lampshade has circular concave shape, described surface
It is convex that osculating element has the circle corresponding with the shape of the end of the edge of opening of described lampshade
Go out shape.
LED light lamp the most according to claim 1, wherein, described lampshade is by having
Have equal to or more than 9W/m K-1Thermal conductivity ceramic material formed.
LED light lamp the most according to claim 2, wherein, described ceramic material
Including from PLZT, CaF2、Y2O3, YAG, polymorph A lON and MgAl2O4The group of composition selects
At least one material.
LED light lamp the most according to claim 1, wherein, described lampshade includes
The angle of radiation regulation unit of the angle of radiation of the light sent from described luminescence unit for regulation.
5. a LED light lamp, including:
Luminescence unit, it includes one or more LED and one or many
The circuit substrate that individual LED is mounted thereon；
Radiating piece, described luminescence unit is mounted thereon, and described radiating piece dissipates described
The heat that luminescence unit produces；And
Transparent lamp shade, it engages with described radiating piece, in order to cover described luminescence unit,
Wherein, described radiating piece includes: installation unit, and it is arranged in centre and supports
Described circuit substrate；Outer surface, its surround described installation unit and with described installation unit
Spaced apart；And multiple fin, described installation unit is connected by it with described outer surface,
And the plurality of fin is spaced apart from each other,
Described lampshade includes cover and the heat-conducting layer formed by light transmissive material, and described heat-conducting layer has
One or more layers directly contacts with described radiating piece, and is formed on the outer surface of described cover,
Described heat-conducting layer is formed as extending on the end of the edge of opening of described lampshade, and
The described heat-conducting layer that described radiating piece has with the end being formed at edge of opening carries out surface
Contact surface contact unit, relative with described outer surface in the top of described radiating piece in
Perimeter surface is surrounded the edge of opening of described lampshade and engages with the edge of opening of described lampshade, and
Described surface contact unit adjoins with described inner peripheral surface,
The end of the edge of opening of described lampshade has circular shape of protruding, the contact of described surface
Unit has the circular concave shape corresponding with the shape of the end of the edge of opening of described lampshade
Shape；Or, the end of the edge of opening of described lampshade has circular concave shape, described surface
It is convex that osculating element has the circle corresponding with the shape of the end of the edge of opening of described lampshade
Go out shape.
LED light lamp the most according to claim 5, wherein, described heat-conducting layer bag
Containing ITO, SnO2, ZnO, IZO, CNT or Graphene.
LED light lamp the most according to claim 5, wherein, described lampshade includes
The angle of radiation regulation unit of the angle of radiation of the light sent from described luminescence unit for regulation.
8. a LED light lamp, including:
Luminescence unit, it includes one or more LED and one or many
The circuit substrate that individual LED is mounted thereon；
Radiating piece, described luminescence unit is mounted thereon, and described radiating piece dissipates described
The heat that luminescence unit produces；And
Transparent lamp shade, it directly contacts described radiating piece and engages with described radiating piece, in order to
Cover described luminescence unit,
Wherein, described radiating piece includes: installation unit, and it is arranged in centre and supports
Described circuit substrate；Outer surface, its surround described installation unit and with described installation unit
Spaced apart；And multiple fin, described installation unit is connected by it with described outer surface,
And the plurality of fin is spaced apart from each other,
Described lampshade is by the material shape obtained by being distributed heat filling in light penetrating copolymer
Become,
Described radiating piece has the end of the edge of opening with described lampshade and carries out what surface contacted
Surface contact unit, inner peripheral surface relative with described outer surface in the top of described radiating piece
Surround the edge of opening of described lampshade and engage with the edge of opening of described lampshade, and described table
Face osculating element adjoins with described inner peripheral surface,
The end of the edge of opening of described lampshade has circular shape of protruding, the contact of described surface
Unit has the circular concave shape corresponding with the shape of the end of the edge of opening of described lampshade
Shape；Or, the end of the edge of opening of described lampshade has circular concave shape, described surface
It is convex that osculating element has the circle corresponding with the shape of the end of the edge of opening of described lampshade
Go out shape.
LED light lamp the most according to claim 8, wherein, described heat filling
It it is light transmitting filler.
LED light lamp the most according to claim 8, wherein, described heat conduction is filled out
Material comprises from CNT, Graphene, titanium oxide, zinc oxide, zirconium oxide, aluminium nitride and oxygen
Change at least one granule selected in the group of aluminum composition.
11. LED light lamp according to claim 8, wherein, described heat conduction is filled out
Material has the bead form being coated with diffusion barrier.
12. LED light lamp according to claim 8, wherein, described lampshade bag
The angle of radiation regulation of the angle of radiation including the light sent from described luminescence unit for regulation is single
Unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100120665A KR101535463B1 (en) | 2010-11-30 | 2010-11-30 | LED lamp |
| KR10-2010-0120665 | 2010-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478171A CN102478171A (en) | 2012-05-30 |
| CN102478171B true CN102478171B (en) | 2016-12-14 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200833752A (en) * | 2006-10-23 | 2008-08-16 | Lord Corp | Highly filled polymer materials |
| WO2010058325A1 (en) * | 2008-11-18 | 2010-05-27 | Koninklijke Philips Electronics N.V. | Electric lamp |
| CN201507808U (en) * | 2009-09-03 | 2010-06-16 | 天津津亚电子有限公司 | LED bulb |
| CN201651871U (en) * | 2010-03-04 | 2010-11-24 | 浙江大学 | LED energy-saving lamp with radiator capable of freely circulating air |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200833752A (en) * | 2006-10-23 | 2008-08-16 | Lord Corp | Highly filled polymer materials |
| WO2010058325A1 (en) * | 2008-11-18 | 2010-05-27 | Koninklijke Philips Electronics N.V. | Electric lamp |
| CN201507808U (en) * | 2009-09-03 | 2010-06-16 | 天津津亚电子有限公司 | LED bulb |
| CN201651871U (en) * | 2010-03-04 | 2010-11-24 | 浙江大学 | LED energy-saving lamp with radiator capable of freely circulating air |
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Effective date of registration: 20121017 Address after: Gyeonggi Do, South Korea Applicant after: Samsung Electronics Co., Ltd. Address before: Gyeonggi Do, South Korea Applicant before: Samsung LED Co., Ltd. |
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