CN201420995Y - LED street lamp with good heat dissipation function - Google Patents
LED street lamp with good heat dissipation function Download PDFInfo
- Publication number
- CN201420995Y CN201420995Y CN2009200530591U CN200920053059U CN201420995Y CN 201420995 Y CN201420995 Y CN 201420995Y CN 2009200530591 U CN2009200530591 U CN 2009200530591U CN 200920053059 U CN200920053059 U CN 200920053059U CN 201420995 Y CN201420995 Y CN 201420995Y
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- lamp
- pcb board
- heat
- led
- led street
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- Expired - Fee Related
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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 utility model discloses a LED street lamp with good heat dissipation function, which comprises a lamp housing (1) with radiating fins, and a PCB board (2) arranged in the lamp housing (1), a heat-radiating cooling coating layer (3) is arranged on the outer surface of the PCB board (2), and one surface of the PCB board (2) is provided with a plurality of LEDs (4). The heat dissipation path of the LED street lamp includes that: the heat generated by the LED 4 is dissipated out of the lamp body through the PCB board (aluminum substrate), the heat-radiating cooling coating layer and the lamp housing, as the directional heat dissipation treatment technique is adopted, the heat generated by the operating LED is transmitted to the lamp housing 1 through the substrate and the exterior and theinterior of the lamp can be in thermal equilibrium state rapidly. The service life of the lamp is improved and the cost and weight of the lamp are reduced; meanwhile, the cost of the LED street lamp is reduced.
Description
Technical field
The utility model belongs to the technical field of lighting, is specifically related to a kind of LED street lamp that uses light emitting diode as the good heat radiating function of light source.
Background technology
The same with conventional light source, semiconductor light-emitting-diode (LED) also can produce heat during operation, and how much it depends on whole luminous efficiency.Power up outside under the energy, the radiation recombination generation electroluminescent in electronics and hole, semiconductor medium and encapsulation medium that near the light that radiates the P-N knot also need pass through wafer (chip) itself just can arrive at external world's (air).Comprehensive electric current injection efficiency, radioluminescence quantum efficiency, wafer exterior light are taken out efficient etc., have quite a few energy mainly to transform heat energy with the form of the lattice vibration of non-radiative compound generation.And the rising of chip temperature then can strengthen non-radiative compoundly, further slackens luminous efficiency.
LED street lamp structure mainly is made up of housing, radiator, Switching Power Supply, led light source.The semi-conductor industry development of technology, the light emitting diode cost performance improves day by day, and it is trend of the times that the LED street lamp replaces conventional road lamp (high-pressure mercury lamp etc.).Solve the quick heat radiating problem of LED, the heat that PN junction is produced can distribute as soon as possible, not only can improve the luminous efficiency of product, has also improved reliability of products and life-span simultaneously.In view of LED to the having relatively high expectations of radiating condition, the limit value if the PN junction junction temperature is above standard, LED will aggravate light decay, lowers efficiency, even quits work.So heat dissipation problem is the most scabrous key of LED street lamp.
Present most of enterprise all adopts technology such as hot pipe technique or fan active heat removal in order to solve heat dissipation problem, no matter takes which kind of heat dissipation technology, finally be the problem that outer shell area solves heat radiation, and the big more weight of area is big more.Increase area of dissipation, so just strengthened light fixture weight greatly, LED street lamp weight popular on the market all increases by two to three times than existing street lamp, and the street lamp weight that has reaches more than the 20kg, and is totally unfavorable to the security performance of street lamp, increased the light fixture cost again; The radiating mode of this traditional type also is a kind of three-dimensional radiating mode simultaneously, promptly distributes around the heat court that light fixture produces, and can cause the interior temperature of lamp body greater than skin temperature like this, is easy to destroy the LED normal operation circumstances.
The utility model content
The purpose of this utility model be to provide a kind of in light weight, cost is low, have the LED street lamp of good heat radiating function.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the LED street lamp of good heat radiating function, comprise the lamp outer casing that has fin, be provided with pcb board in the described lamp outer casing, described pcb board outer surface is provided with heat loss through radiation cooling dope layer, and the face of pcb board is provided with several LED lamps.
Owing to adopted above-mentioned structure, be coated with last layer heat loss through radiation cooling dope layer at the pcb board outer surface, the heatproof amplitude of heat loss through radiation cooling dope layer is at-50--450 ℃, and coating can reduce the pcb board temperature fast with 8-13.5 μ m infrared wavelength to lamp outer casing directional type radiating and cooling.By heat loss through radiation cooling dope layer pcb board and lamp outer casing are tightly sticked together, can strengthen the heat loss through radiation ability between them, by pcb board heat guiding structure to lamp outer casing.Because the base heat radiating metal of LED lamp partly is close to pcb board,, thereby reach the effect of cooling and insulating so LED lamp body temperature is understood decline fast.Heat radiation approach of the present utility model: outside LED4 → pcb board (aluminium base) → heat loss through radiation cooling dope layer → lamp outer casing → lamp body, this employing directional type radiating treatment technology, the heat that LED work is produced conducts to lamp outer casing 1 rapidly by substrate, is in thermal balance very soon inside and outside making lamp body.Both prolong the service life of light fixture, reduced the cost and the weight that has alleviated light fixture of light fixture again, also reduced cost simultaneously.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail, but does not constitute any restriction of the present utility model.
Fig. 1 is the three-dimensional installation diagram of LED street lamp.
The specific embodiment
As shown in Figure 1, the LED street lamp of good heat radiating function described in the utility model, comprise the lamp outer casing of making by metal material 1, have fin on the lamp outer casing 1, be provided with pcb board 2 in the described lamp outer casing 1, described pcb board 2 outer surfaces are provided with heat loss through radiation cooling dope layer 3, heat loss through radiation cooling dope layer 3 is " ZS-411 " heat loss through radiation cooling coating, this coating has good anti-corrosive properties, good adhesive force, pliability, intensity, hardness, shock resistance, wearability are arranged, good self-cleaning is arranged, the advantage of no material deposition after the coating brushing.The weather resisteant of coating is also very good, can be in outdoor long-term stable operation.The one side of pcb board 2 is attached to lamp outer casing 1 inner face, and the another side of pcb board 2 is provided with several LED lamps 4, and the base heat radiating metal of LED lamp 4 partly is close to pcb board 2 (aluminium base).
Be coated with last layer " ZS-411 " heat loss through radiation cooling dope layer 3 at pcb board 2 (aluminium base) outer surface, the heatproof amplitude of heat loss through radiation cooling dope layer 3 is at-50--450 ℃, coating can reduce pcb board 2 (aluminium base) temperature fast with 8-13.5 μ m infrared wavelength to lamp outer casing 1 directional type radiating and cooling.By heat loss through radiation cooling dope layer 3 pcb board 2 (aluminium base) and lamp outer casing 1 are tightly sticked together, can strengthen the heat loss through radiation ability between them, by pcb board 2 (aluminium base) heat guiding structure to lamp outer casing 1.Because the base heat radiating metal of LED lamp 4 partly is close to pcb board 2 (aluminium base),, thereby reach the effect of cooling and insulating so LED lamp 4 body temperatures are understood decline fast.Outside heat radiation approach of the present utility model: LED4 → PCB2 plate (aluminium base) → heat loss through radiation cooling dope layer 3 → lamp outer casing 1 → lamp body, this employing directional type radiating treatment technology, the heat that LED work is produced conducts to lamp outer casing 1 rapidly by substrate, is in thermal balance very soon inside and outside making lamp body.Both prolong the service life of light fixture, reduced the cost and the weight that has alleviated light fixture of light fixture again, also reduced cost simultaneously.
Claims (1)
1. the LED street lamp of a good heat radiating function, it is characterized in that: comprise the lamp outer casing (1) that has fin, be provided with pcb board (2) in the described lamp outer casing (1), described pcb board (2) outer surface is provided with heat loss through radiation cooling dope layer (3), and the one side of pcb board (2) is provided with several LED lamps (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200530591U CN201420995Y (en) | 2009-03-20 | 2009-03-20 | LED street lamp with good heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200530591U CN201420995Y (en) | 2009-03-20 | 2009-03-20 | LED street lamp with good heat dissipation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420995Y true CN201420995Y (en) | 2010-03-10 |
Family
ID=41807653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200530591U Expired - Fee Related CN201420995Y (en) | 2009-03-20 | 2009-03-20 | LED street lamp with good heat dissipation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420995Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446876A (en) * | 2010-10-11 | 2012-05-09 | 叶福霖 | Heat sink device |
| CN102865561A (en) * | 2012-08-28 | 2013-01-09 | 东协金属科技（深圳）有限公司 | Heat dissipation bracket used for lamp, manufacturing method thereof and LED (Light-Emitting Diode) lamp |
-
2009
- 2009-03-20 CN CN2009200530591U patent/CN201420995Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446876A (en) * | 2010-10-11 | 2012-05-09 | 叶福霖 | Heat sink device |
| CN102865561A (en) * | 2012-08-28 | 2013-01-09 | 东协金属科技（深圳）有限公司 | Heat dissipation bracket used for lamp, manufacturing method thereof and LED (Light-Emitting Diode) lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEYUAN YUEXING ILLUMINATION INDUSTRY CO., LTD. Free format text: FORMER NAME: HEYUAN CITY YUEXING INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 514000 Guangdong province Heyuan city high Pugang Feng No. 38 leaf Avenue Patentee after: Heyuan Yuexing Lighting Industry Co., Ltd. Address before: 514000 Guangdong province Heyuan city high Pugang Feng No. 38 leaf Avenue Patentee before: Heyuan Yuexing Industrial Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20130320 |