CN202434573U - Large-power white light LED - Google Patents
Large-power white light LED Download PDFInfo
- Publication number
- CN202434573U CN202434573U CN2012200483728U CN201220048372U CN202434573U CN 202434573 U CN202434573 U CN 202434573U CN 2012200483728 U CN2012200483728 U CN 2012200483728U CN 201220048372 U CN201220048372 U CN 201220048372U CN 202434573 U CN202434573 U CN 202434573U
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- Prior art keywords
- white light
- led chip
- substrate
- lens
- led
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- Expired - Fee Related
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Abstract
The utility model relates to a large-power white light LED, belonging to the technical field of lighting devices. The large-power white light LED comprises a base, a substrate and an LED chip, wherein the LED chip is fixed in the center of the substrate, the base is provided with a lens wrapping the substrate and the LED chip and is further provided with a heat insulation cover which is arranged between the lens and the LED chip; and fluorescent glue is further filled between the heat insulation cover and the lens. The large-power white light LED has the advantages of high lighting efficiency and long service life.
Description
Technical field
The utility model relates to a kind of white light LEDs, belongs to the lighting device technical field.
Background technology
Compare with traditional incandescent lamp, fluorescent lighting, large power white light LED has considerable energy saving, environmental protection, and a series of incomparable advantages such as long service life are being represented the developing direction of novel green, environmental protection lighting.
Examine according to transferring; China's electric consumption on lighting every year is more than 3,000 hundred million degree; Replace whole incandescent lamps or partly replace fluorescent lamp with LED, can save 1/3 electric consumption on lighting, mean and practice thrift 1,000 hundred million degree; Be equivalent to the annual energy output that a gross investment surpasses 2,000 hundred million Three Gorges Projects, have high social benefit and economic benefit.Use the LED replace fluorescent lamps, the primary pollution of avoiding fluorescent tube to break overflowing mercury, and order is made the discarded base plate (aluminium base copper-clad plate) of LED and can be recycled and reused.
In actual use, large power white light LED is compared common white light LEDs and is had bigger power and bigger luminous quantity.But in the actual use of large power white light LED, fluorescent material usually can be because of the charing of turning black of being heated, and the fluorescent material after the charing causes the lifetime of whole element function.
At present, mainly contain large tracts of land distribution, the concentrated distribution of wafer surface and fluorescent glue conformal for the fluorescent glue coating in the white light LEDs encapsulation and distribute, different fluorescent glue coating processes can have influence on the final optical property of white light LEDs.Along with the change of fluorescence glue-line geometry, will change the light powder particles concentration on the different directions, thereby cause the optical characteristics such as luminous flux, light distribution, lighting angle and fluorescence conversion efficiency of white light LEDs to change.Therefore, very important to the control of fluorescence glue-line geometry.
The utility model content
The technical problem that the utility model will solve is not enough to prior art, proposes a kind of large power white light LED with high-luminous-efficiency and long life.
The utility model is that the technical scheme that solves the problems of the technologies described above proposition is: a kind of large power white light LED; Comprise pedestal, substrate and led chip; Said led chip is fixed in said substrate center, and said pedestal is provided with the lens with substrate and led chip parcel, also is provided with heat shield on the said pedestal; Said heat shield places between said lens and the led chip, also is filled with fluorescent glue between said heat shield and the lens.
The improvement of technique scheme is: said substrate center is made as reflective cup-shaped.
The beneficial effect that the utlity model has is: 1) owing to be provided with heat shield, led chip is when work, and the heat of generation is isolated by heat shield, can be to fluorescent glue generation effect; Be provided with lens simultaneously, can isolate external environment the broken of fluorescent glue changed, protected fluorescent glue, thereby improved luminous efficiency and the useful life of LED; 2) owing to be provided with heat shield; The geometry of heat shield can be easy to control the geometry of fluorescent glue simultaneously; And then can accurately control the profile of fluorescent glue; Thereby the fluorescent powder grain concentration on the change different directions, the optical characteristics such as luminous flux, light distribution, lighting angle and fluorescence conversion efficiency of raising white light LEDs; 3) because substrate center is made as reflective cup-shaped, improved the light emission rate of led chip.
Description of drawings
Below in conjunction with accompanying drawing being described further to the utility model.
Fig. 1 is the large power white light LED structural representation of the utility model embodiment.
Embodiment
The large power white light LED of present embodiment, as shown in Figure 1, comprise pedestal 1, substrate 2 and led chip 3, led chip 3 is fixed in substrate 2 centers, and substrate 2 centers are made as reflective cup-shaped 2-1.
Pedestal 1 is provided with the lens 4 of substrate 2 with led chip 3 parcels, also is provided with heat shield 5 on the pedestal 1.Heat shield 5 places between lens 4 and the led chip 3, also is filled with fluorescent glue 6 between heat shield 5 and the lens 4.
It is the broadband gold-tinted fluorescent material of 560nm that present embodiment adopts the blue-light LED chip 3 of the about 470nm of centre wavelength of emission spectrum to come exciting radiation spectral centroid wavelength, thereby processes the white light LEDs of blue yellow light mix.
The fluorescent glue 6 of present embodiment is mixed and made into by gold-tinted fluorescent material and epoxy resin.The material of substrate 2 can be selected aluminium for use.
During use, led chip 3 is luminous, through fluorescent glue 6 profiles of accurately being controlled by the shape and the position of lens 4 and heat shield 5, thereby processes white light LEDs.Simultaneously, substrate 2 centers are made as reflective cup-shaped 2-1, have improved the light emission rate of led chip 3.
The utility model be not limited to the foregoing description.All employings are equal to the technical scheme that replacement forms, and all drop on the protection range of the utility model requirement.
Claims (2)
1. large power white light LED; Comprise pedestal, substrate and led chip; Said led chip is fixed in said substrate center, and said pedestal is provided with the lens with substrate and led chip parcel, it is characterized in that: also be provided with heat shield on the said pedestal; Said heat shield places between said lens and the led chip, also is filled with fluorescent glue between said heat shield and the lens.
2. large power white light LED according to claim 1, it is characterized in that: said substrate center is made as reflective cup-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200483728U CN202434573U (en) | 2012-02-15 | 2012-02-15 | Large-power white light LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200483728U CN202434573U (en) | 2012-02-15 | 2012-02-15 | Large-power white light LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434573U true CN202434573U (en) | 2012-09-12 |
Family
ID=46783994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200483728U Expired - Fee Related CN202434573U (en) | 2012-02-15 | 2012-02-15 | Large-power white light LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644539A (en) * | 2013-12-13 | 2014-03-19 | 江苏晶和金江照明有限公司 | Efficient LED integrated chip fishing lamp |
| WO2017054246A1 (en) * | 2015-10-02 | 2017-04-06 | 魏晓敏 | Led module |
-
2012
- 2012-02-15 CN CN2012200483728U patent/CN202434573U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644539A (en) * | 2013-12-13 | 2014-03-19 | 江苏晶和金江照明有限公司 | Efficient LED integrated chip fishing lamp |
| WO2017054246A1 (en) * | 2015-10-02 | 2017-04-06 | 魏晓敏 | Led module |
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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: 20120912 Termination date: 20180215 |