CN203082755U - Light emitting diode (LED) vehicle lighting source with long-strip-shaped lighting area - Google Patents
Light emitting diode (LED) vehicle lighting source with long-strip-shaped lighting area Download PDFInfo
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- CN203082755U CN203082755U CN2013200651200U CN201320065120U CN203082755U CN 203082755 U CN203082755 U CN 203082755U CN 2013200651200 U CN2013200651200 U CN 2013200651200U CN 201320065120 U CN201320065120 U CN 201320065120U CN 203082755 U CN203082755 U CN 203082755U
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Abstract
A light emitting diode (LED) vehicle lighting source with a long-strip-shaped lighting area comprises LED chips, fluorescent powder materials, a packaging base board and a packaging outer shell. The LED vehicle lighting source with the long-strip-shaped lighting area is characterized in that the LED chips are distributed to be in a long strip shape or a single long strip shape in an array mode and are installed on the packaging base board, the fluorescent powder materials are in an integral long strip shape and cover the LED chips or coat on the LED chips in a conformal mode, and the LED chips and the fluorescent powder materials on the LED chips form the LED lighting area which is in a long strip shape. The LED vehicle lighting source with the long-strip-shaped lighting area has the advantages that package of the LED vehicle lighting source with the long-strip-shaped lighting area and used for a vehicle headlamp can utilize a multi-curve reflective mirror system or a projection type headlamp system to achieve the light types of a dipped headlamp, a high beam or a fog light, wherein the multi-curve reflective mirror system or the projection type headlamp system is frequently used by a traditional light source, and the dipped headlamp, the high beam or the fog light can meet standards. Not only is a high utilization rate of light ensured, but also optical design difficulty of lamps is reduced greatly.
Description
Technical field
The utility model relates to a kind of Light-Emitting Diode light source, particularly a kind of LED car lighting light source with strip light-emitting zone.
Background technology
In recent years, along with the lifting gradually of light efficiency and the decline of cost, LED has begun to be used in automotive lighting field, particularly automobile external signal lamp and interior automotive lighting, and led light source has occupied suitable ratio.But use for headlamps such as dipped headlights, high beam and fog lamps, LED seldom is used.One of them important reason be the luminous flux of single led packaging with respect to orthodox car headlamp light sources such as Halogen lamp LED, xenon lamps, still obviously on the low side.The method that improves single led packaging luminous flux at present typically uses the encapsulation of plurality of LEDs chip array formula or adopts the large size chip encapsulation, and its light-emitting zone is square (fluorescent material guarantor type coating processes) or circular (fluorescent material gravity flow coating processes) often.Even multiple chips array encapsulated LED light source module, its led chip often also are to arrange according to square mode, or phosphor material powder is square or round-shaped, causes the light-emitting zone of LED package module still to be square or circular.Use (dipped headlights, high beam or fog lamp) for car headlamp, its light type of standard-required has the bigger angle of divergence in the horizontal direction, and has the less angle of divergence in vertical direction, i.e. the light type of strip.For fear of dazzle, the light type of dipped headlights and fog lamp need have horizontal clearly dead line in addition.Because the light-emitting zone of traditional LED encapsulating structure be square or circular, according to optical principle, difficult generation is the light type of "cut-off"line and strip clearly.
Summary of the invention
The purpose of this utility model is at the defective that exists in the prior art, and a kind of LED car lighting light source with strip light-emitting zone is provided.The purpose of this utility model is by changing the form of traditional LED encapsulation, realizes having the special-purpose led light source encapsulation of car headlamp of strip light-emitting zone.With the traditional LED encapsulation with square or circular light-emitting zone, the LED with strip light-emitting zone can easier realization satisfies dipped headlights, high beam or the mist lamplight type of standard, guarantees higher light utilization efficiency simultaneously.
The utility model comprises: led chip, phosphor powder layer, base plate for packaging, package casing, it is characterized in that described led chip is arranged into strip with array way or single strip is installed on the base plate for packaging, phosphor powder layer is that a monoblock strip covers on the led chip, perhaps guarantor's type coating (Conformal Coating) is on each LEDs chip, by led chip and on phosphor powder layer constitute the light-emitting zone of LED, the light-emitting zone of LED is elongated.
Described LED light-emitting zone be length-width ratio more than or equal to two, light-emitting zone length is between 2 millimeters and 10 millimeters.
Described base plate for packaging is that the single or double of high heat conductance applies copper ceramic substrate (DBC) or copper facing silicon substrate or metallized film ceramic substrate.
Described phosphor powder layer is fluorescent powder silica gel composite material or phosphor material powder or the phosphor ceramic composite material covers on single LEDs chip or the monoblock phosphor powder layer covers on the led chip.
The utility model has the advantages that the special-purpose led light source encapsulation of the car headlamp with strip light-emitting zone can utilize conventional light source many optical reflector of curved surface system commonly used or projection-type head lamp system to realize satisfying dipped headlights, high beam or the mist lamplight type of standard, not only can guarantee higher light utilization efficiency, significantly reduce light fixture optical design difficulty simultaneously.
Description of drawings
The plan structure schematic diagram of Fig. 1 embodiment one of the present utility model;
The perspective view of Fig. 2 embodiment one of the present utility model;
The plan structure schematic diagram of Fig. 3 embodiment two of the present utility model;
The plan structure schematic diagram of Fig. 4 embodiment three of the present utility model;
Among the figure: 101LED strip light-emitting zone, 102LED base plate for packaging, 103LED chip.
The specific embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing:
Embodiment one
Present embodiment comprises a strip light-emitting zone 101, base plate for packaging 102.Light-emitting zone 101 is arranged into strip according to 2 * 5 array way and is applied monoblock strip fluorescent material thereon by 10 foursquare led chips 103 and constitutes.The strip light-emitting zone is of a size of 5.4mm * 2.1mm.Package casing covers on the base plate for packaging 102 and forms one.Base plate for packaging 102 is that the single face of high heat conductance applies copper ceramic substrate DBC.Phosphor powder layer is the phosphor ceramic composite material, and the monoblock phosphor powder layer covers on the led chip.Referring to Fig. 1, Fig. 2.
Embodiment two
Embodiment two is identical with embodiment one, and the fluorescent powder silica gel composite material conformal (Conformal Coating) of different is light-emitting zone 101 is coated on each LEDs chip.Referring to Fig. 3.
Embodiment three
Embodiment two is identical with embodiment one, and the led chip of different is light-emitting zone 101 is one whole strip chip, rather than many little square LED chip arrayed become strip.Referring to Fig. 4.
Claims (4)
1. LED car lighting light source with strip light-emitting zone, comprise: led chip, phosphor powder layer, base plate for packaging, package casing, it is characterized in that described led chip is arranged into strip with array way or single strip is installed on the base plate for packaging, phosphor powder layer is that a monoblock strip covers on the led chip, perhaps guarantor's type is coated on each LEDs chip, by led chip and on phosphor powder layer constitute the light-emitting zone of LED, the light-emitting zone of LED is elongated.
2. the LED car lighting light source with strip light-emitting zone according to claim 1, it is characterized in that described LED light-emitting zone be length-width ratio more than or equal to two, light-emitting zone length is between 2 millimeters and 10 millimeters.
3. the LED car lighting light source with strip light-emitting zone according to claim 1 is characterized in that described base plate for packaging is the deposited copper ceramic substrate DBC of single or double or the copper facing silicon substrate or the metallized film ceramic substrate of high heat conductance.
4. the LED car lighting light source with strip light-emitting zone according to claim 1 is characterized in that described phosphor powder layer is that phosphor material powder covers on single LEDs chip or the monoblock phosphor powder layer covers on the led chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200651200U CN203082755U (en) | 2013-02-04 | 2013-02-04 | Light emitting diode (LED) vehicle lighting source with long-strip-shaped lighting area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200651200U CN203082755U (en) | 2013-02-04 | 2013-02-04 | Light emitting diode (LED) vehicle lighting source with long-strip-shaped lighting area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082755U true CN203082755U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200651200U Expired - Lifetime CN203082755U (en) | 2013-02-04 | 2013-02-04 | Light emitting diode (LED) vehicle lighting source with long-strip-shaped lighting area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968311A (en) * | 2013-02-04 | 2014-08-06 | 刘胜 | LED vehicle lighting light source with elongated light emitting area |
-
2013
- 2013-02-04 CN CN2013200651200U patent/CN203082755U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968311A (en) * | 2013-02-04 | 2014-08-06 | 刘胜 | LED vehicle lighting light source with elongated light emitting area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |