CN202259296U - Large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for headlamp of automobile - Google Patents
Large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for headlamp of automobile Download PDFInfo
- Publication number
- CN202259296U CN202259296U CN2011203804105U CN201120380410U CN202259296U CN 202259296 U CN202259296 U CN 202259296U CN 2011203804105 U CN2011203804105 U CN 2011203804105U CN 201120380410 U CN201120380410 U CN 201120380410U CN 202259296 U CN202259296 U CN 202259296U
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- China
- Prior art keywords
- light source
- led chip
- straw hat
- heat sink
- led
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
Abstract
A large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for a headlamp of an automobile comprises a strawhat-shaped high heat conduction heat sink, a solid crystal gluing layer, an LED chip, gold wires, a fluorescent powder layer, a pouring sealant layer, a lens and pins. The solid crystal gluing layer is evenly arranged on the spherical face of the strawhat-shaped high heat conduction heat sink, the LED chip is evenly placed on the solid crystal gluing layer for heating and solidification, the gold wires are welded to electrodes of the LED chip one by one and connected with the pins, the fluorescent powder layer is evenly coated on the LED chip and is then covered by the lens, and the pouring sealant layer is filled in through a glue filling hole on the lens and then heated and solidified. By means of the integrated packaging structure, the face of the heat sink changes from a plane to a round face, the heat conduction route is effectively increased, heat resistance is effectively reduced, the LED chip can be effectively cooled when an LED light source works, and the aims of low cost and long service life of the LED light source for the headlamp of the automobile are achieved.
Description
Technical field
The utility model belongs to the car lighting field, relates to a kind of LED car headlamp light-source structure, relates in particular to a kind of integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp.
Background technology
Car headlamp is one of vitals that ensures the automotive lighting safe operation.In recent years, along with the automobile-used lighting source development of technology of China, car headlamp experienced one from the incandescent lamp to the Halogen lamp LED again to the evolution of HID lamp.But these traditional light-source structures all belong to the glass bulb light fixture of vacuum or inflation, all exist fatal weakness in various aspects such as brightness, life-span, volume, heating degree, colour temperature adjustment and robustnesses.The LED car headlamp is exactly a kind of headlamp of configuration led light source; Compare with traditional car headlamp; Have long, energy-conservation, advantages such as light quality is good, simple in structure, response fast (NS level), voltage is low, volume is little of life-span, it has become falls over each other hot of research and development both at home and abroad.For satisfying illumination, reaching target light flux (1000lm), led light source must be realized with integrated encapsulation or many great power LEDs.But integrated packaged LED is difficult for heat radiation, causes light extraction efficiency reduction, life-span to shorten, and realizes increasing cost with single great power LED, influences the popularization of LED car headlamp.Therefore, developing the led light source structure that is used for car headlamp that a kind of cost is low, the life-span is long has important practical significance.
The utility model content
The purpose of the utility model is to provide a kind of low cost, long-life led light source structure that is used for car headlamp, can guarantee the long-life of LED car headlamp, does not increase its cost again, helps applying of LED car headlamp.
The technical scheme of the utility model is: be used for the integrated encapsulated LED light source structure of high-power straw hat shape of car headlamp, comprise: the heat conduction of straw hat form height is heat sink, crystal-bonding adhesive layer, led chip, gold thread, phosphor powder layer, embedding glue-line, lens, pin; On the heat sink sphere of straw hat form height heat conduction, one deck crystal-bonding adhesive layer is set evenly; Led chip evenly is placed on the crystal-bonding adhesive layer is heating and curing; One by one gold thread is welded on the led chip electrode again; Gold thread is linked to each other with pin, evenly applying lens on the layer of fluorescent powder layer bonnet on the led chip then, the hole for injecting glue on the scioptics is heating and curing after injecting the embedding glue-line again.
High heat conduction is heat sink to be straw hat shape, the crystal-bonding adhesive layer after the curing be hemisphere and be close to the heat conduction of straw hat form height heat sink on.
Led chip is uniformly distributed on the hemisphere crystal-bonding adhesive layer.
The gold thread that is welded on the led chip electrode is drawn through pin, and pin is positioned in the straw hat form height heat conduction heat sink " the brim of a hat ".
Phosphor powder layer is that hemisphere covers led chip and gold thread, and " the brim of a hat " that its underpart and pin and the heat conduction of straw hat form height are heat sink borders on.
The embedding glue-line is that hemisphere is close to hemisphere phosphor powder layer upper surface, and its underpart and pin are bordered on.
Lens are that hemisphere is close to hemisphere embedding glue-line upper surface, and its underpart and pin are bordered on.
The utility model adopts the good effect that produces after the technique scheme to be: after adopting this integrated encapsulation structure; Heat sinkly become disc by the plane; Thermally conductive pathways is effectively increased; Thereby effectively reduce thermal resistance, when led light source is worked, can effectively reduce the led chip temperature, realize that car headlamp is with the low cost of led light source, long-life hope.
Description of drawings
Accompanying drawing 1 is used for the integrated encapsulated LED light source structural profile of the high-power straw hat shape sketch map of car headlamp for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe: shown in accompanying drawing 1; The integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp; Mainly heat sink 1, crystal-bonding adhesive layer 2, led chip 3, gold thread 4, phosphor powder layer 5, embedding glue-line 6, lens 7, pin 8 by the heat conduction of straw hat form height; On the sphere of straw hat form height heat conduction heat sink 1, evenly smear one deck crystal-bonding adhesive, led chip 3 evenly is placed on the crystal-bonding adhesive, put into the baking oven baking and make it be solidified into crystal-bonding adhesive layer 2; Again gold thread 4 is welded on the electrode of led chip 3 one by one; At last gold thread 4 is linked on the pin 8, evenly applied lens 7 on layer of fluorescent powder layer 5 bonnet on the led chip 3 then, put into the baking oven heating again behind the injection of the hole for injecting glue on the scioptics 7 casting glue 6 and make it be solidified into embedding glue-line 6.
High heat conduction is heat sink 1 to be shaped as straw hat shape, and baking makes its crystal-bonding adhesive layer that is solidified into 2 be hemisphere in baking oven, and is close in the straw hat form height heat conduction heat sink 1; Led chip 3 is uniformly distributed on the hemisphere crystal-bonding adhesive layer 2; The gold thread 4 that is welded on led chip 3 electrodes is drawn through pin 8, and pin 8 is positioned on " the brim of a hat " of straw hat form height heat conduction heat sink 1; The phosphor powder layer 5 that evenly applies covers on led chip 3 and the gold thread 4 for hemisphere, and " the brim of a hat " of its underpart and pin 8 and straw hat form height heat conduction heat sink 1 borders on; Embedding glue-line 6 is a hemisphere, is close to hemisphere phosphor powder layer 5 upper surfaces, and its underpart and pin 8 are bordered on; Lens 7 are hemisphere, are close to the upper surface of hemisphere embedding glue-line 6, and its underpart and pin 8 are bordered on.
After adopting this integrated encapsulation structure; The heat conduction of straw hat form height is heat sink 1 to become sphere by the plane; Thermally conductive pathways is effectively increased; Thereby reduced thermal resistance effectively, when led light source is worked, can effectively reduce the temperature of led chip 3, thereby realized that car headlamp is with the low cost of led light source, long-life hope.
Claims (7)
1. integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp comprises: the heat conduction of straw hat form height is heat sink (1), crystal-bonding adhesive layer (2), led chip (3), gold thread (4), phosphor powder layer (5), embedding glue-line (6), lens (7), pin (8); It is characterized in that: one deck crystal-bonding adhesive layer (2) evenly is set on the sphere of straw hat form height heat conduction heat sink (1); Evenly be provided with led chip (3) on the crystal-bonding adhesive layer (2); Gold thread (4) is welded on led chip (3) electrode one by one; Gold thread (4) links to each other with pin (8), and phosphor powder layer (5) evenly is set on the led chip (3), between lens (7) and the phosphor powder layer (5) embedding glue-line (6) is set.
2. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1; It is characterized in that: high heat conduction is heat sink (1) is that straw hat shape, the crystal-bonding adhesive layer (2) after the curing are hemisphere and are close in the straw hat form height heat conduction heat sink (1).
3. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1, it is characterized in that: led chip (3) is uniformly distributed on the hemisphere crystal-bonding adhesive layer (2).
4. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1; It is characterized in that: the gold thread (4) that is welded on led chip (3) electrode is drawn through pin (8), and pin (8) is positioned on " the brim of a hat " of straw hat form height heat conduction heat sink (1).
5. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1; It is characterized in that: phosphor powder layer (5) covers led chip (3) and gold thread (4) for hemisphere, and " the brim of a hat " of its underpart and pin (8) and straw hat form height heat conduction heat sink (1) borders on.
6. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1 is characterized in that: embedding glue-line (6) is close to hemisphere phosphor powder layer (5) upper surface for hemisphere, and its underpart and pin (8) are bordered on.
7. the integrated encapsulated LED light source structure of high-power straw hat shape that is used for car headlamp according to claim 1 is characterized in that: lens (7) are close to hemisphere embedding glue-line (6) upper surface for hemisphere, and its underpart and pin (8) are bordered on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203804105U CN202259296U (en) | 2011-10-10 | 2011-10-10 | Large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for headlamp of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203804105U CN202259296U (en) | 2011-10-10 | 2011-10-10 | Large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for headlamp of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259296U true CN202259296U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203804105U Expired - Fee Related CN202259296U (en) | 2011-10-10 | 2011-10-10 | Large-power strawhat-shaped integrated packaging light-emitting diode (LED) light source structure used for headlamp of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339821A (en) * | 2011-10-10 | 2012-02-01 | 河南恒基光电有限公司 | High-power straw-hat-shaped integrated packaging light-emitting diode (LED) light source structure for automobile headlight |
| CN106051575A (en) * | 2015-04-17 | 2016-10-26 | 福特全球技术公司 | Illuminating molding for vehicle |
-
2011
- 2011-10-10 CN CN2011203804105U patent/CN202259296U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339821A (en) * | 2011-10-10 | 2012-02-01 | 河南恒基光电有限公司 | High-power straw-hat-shaped integrated packaging light-emitting diode (LED) light source structure for automobile headlight |
| CN106051575A (en) * | 2015-04-17 | 2016-10-26 | 福特全球技术公司 | Illuminating molding for vehicle |
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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: 20120530 Termination date: 20171010 |