CN101749667A - High-power LED lighting device - Google Patents
High-power LED lighting device Download PDFInfo
- Publication number
- CN101749667A CN101749667A CN200810217739A CN200810217739A CN101749667A CN 101749667 A CN101749667 A CN 101749667A CN 200810217739 A CN200810217739 A CN 200810217739A CN 200810217739 A CN200810217739 A CN 200810217739A CN 101749667 A CN101749667 A CN 101749667A
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- CN
- China
- Prior art keywords
- led lighting
- lighting device
- fin
- radiating fin
- power led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
The invention discloses a high-power LED lighting device, which mainly comprises an LED lighting chip, a circuit board and a radiating fin. The high-power LED lighting device is characterized in that: the LED lighting chip is welded on the circuit board which is closely connected with the radiating fin; the heat generated when the LED lighting chip works is transferred to the radiating fin; waterproof and insulating treatment is performed on the LED chip and circuits so that the radiating fin can be bared in the air directly; an air convection channel is designed on the radiating fin, so the heat which is transferred to the radiating fin when the LED lighting chip works enables hot air to rise, and cold air forms air convection to perform circulation radiation through the air convection channel so as to exchange heat with the environment rapidly. The high-power LED lighting device has the characteristics of low thermal-conduction resistance, insulativity and waterproof performance, utilization of air circular convection for radiating, high heat exchange efficiency, simple implementation process, capability of effectively ensuring that the LED lighting chip works in good temperature environment, simple structure, low cost, no mechanisms of a fan or the like and high reliability, and can be widely applied to various LED lighting devices such as a street lamp, a tunnel road, a flood lamp, a strip lamp and a wall washing lamp.
Description
Technical field
The present invention relates to a kind of led lighting device, relate in particular to a kind of high-power LED lighting device with radiator structure.
Background technology
Led as the 4th generation lighting source more and more known by people, from numerous patents about the led heat radiation as can be seen, heat dissipation problem is to perplex the led key technologies for application always.The seal requirement of the IP grade illumination apparatus of the high-power LED lighting device, particularly some outdoor lighting devices in the industry can't be adopted the Natural Heat Convection mode at present, makes heat dissipation problem severe more.
In patent 200710124533 documents, disclose the mode of a kind of absorber plate+heat pipe+fin, the heat that is enclosed in the high-power LED generation of working in the waterproof lampshade is conducted to heat pipe by absorber plate, heat pipe is delivered to fin and is radiated in the air.
In patent 200810065897 documents, disclose a kind of mode of fan+fin, the heat that is enclosed in the high-power LED generation of working in the waterproof lampshade has been delivered in the lamp housing by fin, taken in the air by fan again.
In patent 200720037445 documents, disclose a kind of light fixture of three cavity body structures design, the heat that produces during led work is delivered to open radiator bottom surface by the led substrate with heat-conducting glue, is radiated in the air again.
The described lighting device thermal resistance of above patent is big, and heat exchange efficiency is low, complex structure, cost height, poor reliability.
Summary of the invention
The technical problem to be solved in the present invention is the radiating mode of the existing high-power LED lighting device of improvement, allows the led illumination chip be operated under the good temperature environment, raises the efficiency and the life-span, reduces cost.
The present invention solves the technical scheme that high-power LED lighting device adopts, and manufactures and designs a kind of led High Power Illuminator, comprising: led illumination chip, wiring board, fin.
It is characterized in that: described led illumination chip welding in the circuit board;
Described led illumination chip and wiring board have been done the waterproof insulation processing;
Described fin closely is connected with wiring board;
Described fin directly exposes in air;
Design has the airflow convection passage on the described heat radiating fin structure.
Key technology of the present invention is: the led chips welding in the circuit board, wiring board is closely connecting fin, the heat that produces during the work of led illumination chip is directly delivered on the fin, led chip and circuit have been done the waterproof insulation processing, make fin directly to expose in air, because heat sink design has the airflow convection passage, producing the heat that is delivered on the fin during work of led illumination chip makes hot-air rise, cold air forms cross-ventilation circulation heat radiation by the airflow convection passage, carries out heat exchange rapidly with environment.
Transmit by multistage heat with existing led lighting device, the mode of carrying out forced heat radiation by heat radiation of light fixture fin or fan is compared again, and thermal-conduction resistance of the present invention is little, insulative water-proof utilizes the air circulation heat loss through convection, the heat exchange efficiency height, simple process realizes, guarantees that effectively the led illumination chip is operated under the good temperature environment, and is simple in structure, with low cost, mechanisms such as no fan heat pipe, reliability height, can be widely used in various led light fixtures, as street lamp, Tunnel Lamp, floodlight, strip light, wall lamp.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of first embodiment of high-power LED lighting device of the present invention.
Fig. 2 is the structural representation of second embodiment of high-power LED lighting device of the present invention.
The specific embodiment
In Fig. 1 Fig. 2, high-power LED illumination chip (1) is welded on and carries out the insulative water-proof processing after wiring board (2) is gone up, and makes fin (3) directly to expose in air and works.The heat that produces during high-power LED illumination chip (1) work passes to exposed aerial fin (3) by wiring board (2), because hot-air rises, the air convection channel (4) that cold air is gone up design by fin (3) forms the air circulation heat loss through convection.Make the heat that produces in high-power LED illumination chip (1) work exchange with environment rapidly, simple process guarantees that effectively led illumination chip (1) is operated under the good temperature environment.Simple in structure, with low cost, mechanisms such as no fan heat pipe, the reliability height can be widely used in various led light fixtures, as street lamp, Tunnel Lamp, floodlight, strip light, wall lamp.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a high-power LED lighting device comprises: led illumination chip, wiring board, fin.It is characterized in that: design has the airflow convection passage on the described fin, and described wiring board is closely connecting fin, and described led chips welding in the circuit board.
2. high-power LED lighting device according to claim 1 is characterized in that: described led illumination chip welding in the circuit board;
3. high-power LED lighting device according to claim 1, it is characterized in that: the tight connected mode of described wiring board and fin can be with the aluminum-based circuit board welding, and is bonding, is fixed on the fin, also can be with the circuit pressing, be integrated on the fin;
4. high-power LED lighting device according to claim 1 is characterized in that: done the waterproof insulation processing after described led illumination chip and wiring board welding are fixing;
5. high-power LED lighting device according to claim 1 is characterized in that: described fin directly exposes in air;
6. high-power LED lighting device according to claim 1 is characterized in that: described heat sink design has the airflow convection passage;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217739A CN101749667A (en) | 2008-12-02 | 2008-12-02 | High-power LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217739A CN101749667A (en) | 2008-12-02 | 2008-12-02 | High-power LED lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749667A true CN101749667A (en) | 2010-06-23 |
Family
ID=42477055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810217739A Pending CN101749667A (en) | 2008-12-02 | 2008-12-02 | High-power LED lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749667A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155716A (en) * | 2011-04-03 | 2011-08-17 | 东莞勤上光电股份有限公司 | LED (light-emitting diode) radiator |
| CN102221189A (en) * | 2011-06-11 | 2011-10-19 | 东莞勤上光电股份有限公司 | Vertical convector radiator and vertical convector radiating down lamp |
-
2008
- 2008-12-02 CN CN200810217739A patent/CN101749667A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155716A (en) * | 2011-04-03 | 2011-08-17 | 东莞勤上光电股份有限公司 | LED (light-emitting diode) radiator |
| CN102221189A (en) * | 2011-06-11 | 2011-10-19 | 东莞勤上光电股份有限公司 | Vertical convector radiator and vertical convector radiating down lamp |
| CN102221189B (en) * | 2011-06-11 | 2014-04-02 | 东莞勤上光电股份有限公司 | Vertical convector radiator and vertical convector radiating down lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |