CN204879821U - LED vehicle headlamps light source and subassembly of encapsulation of transparent fluorescence ceramic pipe of cold thin wall of oil - Google Patents
LED vehicle headlamps light source and subassembly of encapsulation of transparent fluorescence ceramic pipe of cold thin wall of oil Download PDFInfo
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- CN204879821U CN204879821U CN201520193456.4U CN201520193456U CN204879821U CN 204879821 U CN204879821 U CN 204879821U CN 201520193456 U CN201520193456 U CN 201520193456U CN 204879821 U CN204879821 U CN 204879821U
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- light source
- ceramic pipe
- led
- transparent fluorescent
- oil
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Abstract
The utility model provides a LED vehicle headlamps light source and subassembly of encapsulation of transparent fluorescence ceramic pipe of cold thin wall of oil, including transparent fluorescence ceramic pipe, LED wick, conduction oil and heat dissipation base, wherein, the LED wick sets up inboard just setting of transparent fluorescence ceramic pipe is in on the heat dissipation base, transparent fluorescence ceramic pipe forms first cavity with the LED wick, the conduction oil fill in in the first cavity. The utility model discloses an adopting the mode encapsulation LED light source of the transparent fluorescence ceramic pipe of thin wall, making the light source present 360 and give off light, the light intensity angular distribution of light source is close with traditional vehicle headlamps light source, can effectively eliminate marginal colour difference and " the five colours " problems such as the yellow limit of LED encapsulation light source, red limit, green limit simultaneously, through the heat -sinking capability who adopts the cold mode of oil reinforcing LED light source, during the cavity in the transparent fluorescence ceramic pipe of thin wall and heat dissipation base was filled to heat conduction silicon oil, the heat energy that heat that the LED wick sent and transparent fluorescence ceramic pipe sent spread in the heat conduction silicon oil enough effectively.
Description
Technical field
The utility model relates to LED luminescence technology, particularly, relates to LED automobile headlamp light source and the assembly of a kind of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation.
Background technology
LED progressively substitutes conventional light source in every field in recent years, and wherein automotive LED headlamp is exactly a very important application, and the high-end vehicle of multiple brand has brought into use LED headlamp.Occur at present a lot for replacing the LED light source of orthodox car headlamp light source on the market.But because brightness is inadequate, light type is bad, LED automobile headlamp light source could not cause the extensive accreditation of replacing market.This is because the luminous site volume of the existing filament lamp for car headlamp, xenon lamp is very little, be usually less than
and be 360 ° of illuminating sources.But LED is 180 ° of illuminating sources, replacement on the market be at present automotive LED headlamp by two LED light sources back-to-back or multiple LED light source form of being attached to regular polygon side reach 360 ° of luminous objects.Although this method reaches 360 ° of luminous objects, cause the problem that light source heat radiation is bad and volume is excessive, when making it be assigned in orthodox car headlamp assembly, occur the problem that brightness is inadequate, light type is bad.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide LED automobile headlamp light source and the assembly of the encapsulation of a kind of oil cooling thin-walled transparent fluorescent ceramic pipe.
According to the LED automobile headlamp light source of the oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation that the utility model aspect provides, comprise transparent fluorescent ceramic pipe, LED lamp, conduction oil and cooling base;
Wherein, described LED lamp to be arranged on inside described transparent fluorescent ceramic pipe and to be arranged on described cooling base; Described transparent fluorescent ceramic pipe and LED lamp form the first cavity, and described conduction oil is filled in described first cavity.
Preferably, described transparent fluorescent ceramic pipe adopts rare earth doped yttrium (Re:Y
2o
3), luteium oxide pottery (Re:Lu
2o
3), scandium oxide pottery (Re:Sc
2o
3), yttrium-aluminium-garnet pottery (Re:Y
3al
5o
12), Luetcium aluminum garnet pottery (Re:Lu
3al
5o
12) or transition element doped aluminium oxide ceramics make.
Preferably, shown rare earth element can be the Ce singly mixed, or Ce and Eu, Er, Nd, Pr, Gd, Tb, Sm, Tm, Dy, Yb or Lu one wherein or severally to mix altogether arbitrarily; Rare earth doped total amount is 0.001 to 10wt.%.
Preferably, the column that described transparent fluorescent ceramic pipe is one end open, the other end is closed, described column is cylindric, rectangular column, cubic column, hexagonal columnar and column from all directions.
Preferably, described cooling base is provided with the second cavity;
Wherein, described first cavity and described second cavity form closed circuit.
Preferably, described conduction oil adopts transparent high thermal conductive silicon oil.
Preferably, described cooling base is provided with the protuberance stretching into transparent fluorescent ceramic pipe, and described protuberance is heat pipe, high-thermal conductive metal post and radiating fin.
Preferably, described LED lamp comprises first module module and second unit module;
Wherein, described first module module and described second unit module are spliced back-to-back; Described first module module and described second unit module include LED chip, heat-radiating substrate and box dam frame; Described LED chip is arranged on described heat-radiating substrate; Described box dam frame is arranged on described LED chip periphery.
Preferably, described LED lamp comprises first module module and second unit module;
Wherein, described first module module and described second unit module are spliced back-to-back; Described first module module and described second unit module include LED chip, sapphire substrate and box dam frame; Described LED chip is arranged on described sapphire substrate.
Preferably, described LED lamp is 360 degree and goes out radiant, and these the 360 degree ways of realization going out radiant are that wick adopts transparent material, polylith combines containing the heat sink of LED chip, directly on multiple of wick, places LED chip.
According to the automotive LED headlamp assembly of the oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation that another aspect of the utility model provides, the LED automobile headlamp light source of described oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation, also comprises light source base, oil guide pipe and radiator;
Wherein, the LED automobile headlamp light source of described oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation is arranged in described light source base; The LED lamp of the LED automobile headlamp light source of described oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation is arranged on the slot of described oil guide pipe;
Described light source base is arranged on described radiator; Described oil guide pipe is arranged on the inner side of described light source base.
Compared with prior art, the utility model has following beneficial effect:
1, the utility model is by adopting the mode encapsulated LED light source of thin-walled transparent fluorescent ceramic pipe, light source is made to present 360 ° of luminescences, the light intensity angular distribution of light source is close with orthodox car headlamp light source, effectively can eliminate edge aberration and " five colours " problems such as the yellow limit of LED light source, red limit, green limit simultaneously;
2, the heat-sinking capability of the utility model by adopting oil cooling mode to strengthen LED light source, heat conduction silicone oil is filled in the cavity in thin-walled transparent fluorescent ceramic pipe and cooling base, and the heat that LED lamp sends and the heat that transparent fluorescent ceramic pipe sends can be diffused in heat conduction silicone oil effectively;
When 3, adopting the mode encapsulated LED light source of thin-walled transparent fluorescent ceramic pipe and cooling base to assemble in the utility model, heat conduction silicone oil is formed and circulates between light source and cooling base, by the heat loss through convection of heat conduction silicone oil and high heat capacity, the heat of light source is taken away in cooling base rapidly, and in cooling base, form good samming.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 is the structural representation of the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation in the utility model;
Fig. 2 is the structural representation of the automotive LED headlamp assembly of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation in the utility model;
Fig. 3 is the light intensity angular distribution of a unit module in the utility model.
In figure:
11 is thin-walled transparent fluorescent ceramic pipe;
12 is heat conduction silicone oil;
13 is LED lamp;
21 is the LED automobile headlamp light source that oil cooling thin-walled transparent fluorescent ceramic pipe encapsulates;
22 is oil guide pipe;
23 is light source base;
24 is radiator.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described in detail.Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
Embodiment 1:
As shown in Figure 1, Al will be mixed with
2o
3, Y
2o
3, CeO
2and the base mud single injection-molded of additive, this base substrate is hollow cylindrical, and cylindrical tip is hemispherical.The light-wall pipe biscuit of ceramics of acquisition is carried out high temperature sintering, then carries out annealing in process, acquisition caliber 10mm, pipe thickness are the transparent fluorescent ceramic pipe of 1mm.
LED lamp is spliced back-to-back by two panels unit module.Each unit module is made up of 5 White-light LED chips, aluminium nitride heat-radiating substrate and box dam frame.5 inverted structure LED chip use to cover on surface electrode that brilliant technique is welded in aluminium nitride heat-radiating substrate and form cascaded structure.Thin-walled transparent fluorescent ceramic pipe is by two module enclose in interior, and two panels unit module is close to back-to-back, and two panels unit module and thin-walled transparent fluorescent ceramic pipe form a U-shaped cavity, i.e. the first cavity, fills conduction oil in U-shaped cavity.After energising, light source is 6000K white light, fluorescent tube 360 degree of luminescences and without obvious dark space.
Described transparent fluorescent ceramic pipe adopts yttrium), luteium oxide pottery (Re:Lu2O3), scandium oxide pottery (Re:Sc2O3), yttrium-aluminium-garnet pottery (Re:Y3Al5O12), Luetcium aluminum garnet pottery (Re:Lu3Al5O12) or aluminium oxide ceramics make.The column that described transparent fluorescent ceramic pipe is one end open, the other end is closed, described column is cylindric, rectangular column, cubic column, hexagonal columnar and column from all directions.Described LED lamp is arranged on cooling base.Described cooling base is provided with the second cavity; Wherein, described first cavity and described second cavity form closed circuit.Described conduction oil adopts transparent heat conduction silicone oil.Described cooling base is provided with the protuberance stretching into transparent fluorescent ceramic pipe, and described protuberance is heat pipe, high-thermal conductive metal post and radiating fin.
Embodiment 2:
Embodiment 2 is the variation of embodiment 1, adopts extruding-out process to be mixed with Al
2o
3, Y
2o
3, CeO
2and the base mud of additive is processed into round tubular structure.Adopt tabletting molding process to process disk simultaneously.The biscuit of ceramics of acquisition is carried out high temperature sintering, then carries out annealing in process, acquisition caliber 10mm, pipe thickness are the transparent fluorescent ceramic pipe of 1mm and the transparent fluorescent ceramic disk of diameter 10mm thickness 1mm.Use glue that transparent fluorescent ceramic disk is affixed on transparent fluorescent ceramic pipe one end.
LED lamp is spliced back-to-back by two panels unit module.Monolithic cell module is made up of 5 White-light LED chips, aluminium nitride heat-radiating substrate and box dam frame.5 vertical stratification White-light LED chips use eutectic technology to be welded on the surface electrode of aluminium nitride heat-radiating substrate, and use gold thread bonding technology to make 5 White-light LED chips form cascaded structure, White-light LED chip periphery arranges the box dam frame that inside casing size is 3mm × 7mm.The silicone filler being mixed with red fluorescence powder is used to dry in box dam frame.When lighting, each unit module is purple and presents the light distribution of nearly lambert's type, as shown in Figure 3.In two panels unit module is closed in by thin-walled transparent fluorescent ceramic pipe, two form unit blocks are close to back-to-back, and module and thin-walled transparent fluorescent ceramic pipe form a U-shaped cavity, fill conduction oil in cavity.After energising, light source is 5000K white light, fluorescent tube 360 degree of luminescences and without obvious dark space.
Embodiment 3:
Embodiment 3 is the variation of embodiment 1, will be mixed with Al
2o
3, Y
2o
3, CeO
2and the slurry injection forming of additive becomes tetragonal prism tubular structure.Adopt tabletting molding process to process square piece simultaneously.The biscuit of ceramics of acquisition is carried out high temperature sintering, then carries out annealing in process, acquisition radial dimension 10mm × 10mm, pipe thickness are the transparent fluorescent ceramic pipe of 1mm and the transparent fluorescent ceramic square piece of 10mm × 10mm thickness 1mm.Use glue that transparent fluorescent ceramic square piece sheet is affixed on transparent fluorescent ceramic pipe one end.
LED lamp is spliced back-to-back by two panels unit module.Monolithic cell module is made up of 5 LEDs chips, sapphire substrate.5 thin-film LED uses are covered brilliant Welding and are welded on the surface electrode of sapphire substrate.In two unit modules are closed in by thin-walled transparent fluorescent ceramic pipe, two unit modules are close to back-to-back, and unit module and thin-walled transparent fluorescent ceramic pipe form a U-shaped cavity, fill conduction oil in U-shaped cavity.After energising, light source is 6000K white light, fluorescent tube 360 degree of luminescences and no dark space.
Embodiment 4:
Embodiment 4 is the variation of embodiment 1, will be mixed with Al
2o
3, Y
2o
3, CeO
2and the pulp gel injection moulding of additive becomes tetragonal prism tubular structure.Adopt tabletting molding process to process square piece simultaneously.The biscuit of ceramics of acquisition is carried out high temperature sintering, then carries out annealing in process, acquisition radial dimension 10mm × 10mm, pipe thickness are the transparent fluorescent ceramic pipe of 1mm and the transparent fluorescent ceramic square piece of 10mm × 10mm thickness 1mm.Use glue that transparent fluorescent ceramic square piece sheet is affixed on transparent fluorescent ceramic pipe one end.
LED lamp is made up of single-wafer level packaged chip.The wafer-level packaging chip of Sapphire Substrate does not carry out back side coating film and directly can realize 360 degree of luminescences.In wafer-level packaging chip is closed in by thin-walled transparent fluorescent ceramic pipe, wafer-level packaging chip and thin-walled transparent fluorescent ceramic pipe form a U-shaped cavity, fill conduction oil in U-shaped cavity.After energising, light source is 6000K white light, fluorescent tube 360 degree of luminescences and no dark space.
Embodiment 5:
As shown in Figure 2, the LED automobile headlamp light source 21 of the oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation in embodiment 1 is installed in light source base 23.During installation, wick is plugged on the slot in the middle of two oil guide pipes 22, then puts thin-walled transparent fluorescent ceramic pipe, and internally cavity fills the rear good seal of oil.After adding 30W power to LED light source, realize 3000lm, 6000K white light exports.During thermal balance, thin-walled transparent fluorescent ceramic pipe temperature 50 C, radiator temperature 45 DEG C.After replacing H7 xenon lamp, light type is good, and brightness increases.
Embodiment 6:
The LED automobile headlamp light source 21 of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation in embodiment 2 is installed in light source base 23.During installation, wick is plugged on the slot in the middle of two oil guide pipes 22, then puts thin-walled transparent fluorescent ceramic pipe, and internally cavity fills the rear good seal of oil.After adding 30W power to LED light source, realize 2700lm, 5000K white light exports.During thermal balance, thin-walled transparent fluorescent ceramic pipe temperature 52 DEG C, radiator temperature 46 DEG C.After replacing H7 xenon lamp, light type is good, and brightness increases.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (9)
1. a LED automobile headlamp light source for oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation, is characterized in that, comprise transparent fluorescent ceramic pipe, LED lamp, conduction oil and cooling base;
Wherein, described LED lamp to be arranged on inside described transparent fluorescent ceramic pipe and to be arranged on described cooling base; Described transparent fluorescent ceramic pipe and LED lamp form the first cavity, and described conduction oil is filled in described first cavity.
2. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described transparent fluorescent ceramic pipe adopts yttrium, luteium oxide pottery, scandium oxide is ceramic, yttrium-aluminium-garnet is ceramic, Luetcium aluminum garnet is ceramic or aluminium oxide ceramics is made.
3. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, the column that described transparent fluorescent ceramic pipe is one end open, the other end is closed, described column is cylindric, rectangular column, cubic column, hexagonal columnar and column from all directions.
4. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described cooling base is provided with the second cavity;
Wherein, described first cavity and described second cavity form closed circuit.
5. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described conduction oil adopts transparent heat conduction silicone oil.
6. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described cooling base is provided with the protuberance stretching into transparent fluorescent ceramic pipe, and described protuberance is heat pipe, high-thermal conductive metal post and radiating fin.
7. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described LED lamp comprises first module module and second unit module;
Wherein, described first module module and described second unit module are spliced back-to-back; Described first module module and described second unit module include LED chip, heat-radiating substrate and box dam frame; Described LED chip is arranged on described heat-radiating substrate; Described box dam frame is arranged on described LED chip periphery.
8. the LED automobile headlamp light source of oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation according to claim 1, it is characterized in that, described LED lamp comprises first module module and second unit module;
Wherein, described first module module and described second unit module are spliced back-to-back; Described first module module and described second unit module include LED chip, sapphire substrate and box dam frame; Described LED chip is arranged on described sapphire substrate.
9. the automotive LED headlamp assembly of an oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation, it is characterized in that, comprise the LED automobile headlamp light source of the oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation described in any one of claim 1 to 8, also comprise light source base, oil guide pipe and radiator;
Wherein, the LED automobile headlamp light source of described oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation is arranged in described light source base; The LED lamp of the LED automobile headlamp light source of described oil cooling thin-walled transparent fluorescent ceramic pipe encapsulation is arranged on the slot of described oil guide pipe;
Described light source base is arranged on described radiator; Described oil guide pipe is arranged on the inner side of described light source base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193456.4U CN204879821U (en) | 2015-04-01 | 2015-04-01 | LED vehicle headlamps light source and subassembly of encapsulation of transparent fluorescence ceramic pipe of cold thin wall of oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193456.4U CN204879821U (en) | 2015-04-01 | 2015-04-01 | LED vehicle headlamps light source and subassembly of encapsulation of transparent fluorescence ceramic pipe of cold thin wall of oil |
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| Publication Number | Publication Date |
|---|---|
| CN204879821U true CN204879821U (en) | 2015-12-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423109A (en) * | 2019-09-02 | 2019-11-08 | 谢琳祥 | A kind of ceramic formula, preparation method, ceramic tube and ceramic tube application method |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423109A (en) * | 2019-09-02 | 2019-11-08 | 谢琳祥 | A kind of ceramic formula, preparation method, ceramic tube and ceramic tube application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180401 |