CN203707183U - White light LED device - Google Patents
White light LED device Download PDFInfo
- Publication number
- CN203707183U CN203707183U CN201320879150.5U CN201320879150U CN203707183U CN 203707183 U CN203707183 U CN 203707183U CN 201320879150 U CN201320879150 U CN 201320879150U CN 203707183 U CN203707183 U CN 203707183U
- Authority
- CN
- China
- Prior art keywords
- white light
- optical lens
- light led
- substrate
- silica gel
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 14
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 229960001866 silicon dioxide Drugs 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009747 press moulding Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Abstract
The utility model provides a white light LED device comprising a substrate provided with at least one LED chip and an optical lens wrapping the LED chip; a silica gel layer is arranged between the substrate and the optical lens; the optical lens refers to the silica gel lens containing phosphor and formed through press moulding; the while light LED device can prevent the phosphor from generating color temperature drift in a high temperature environment, thereby improving lighting efficiency and service life of the white light LED.
Description
Technical field
The utility model belongs to lighting device technical field, especially relates to a kind of white light LED part.
Background technology
LED white-light illuminating is a kind of efficient green lighting technology, has a series of incomparable advantages such as energy-saving and environmental protection and life-span be long, and its operation principle is to utilize blue chip and yellow phosphor combination (or other compound mode) to obtain white light.
The encapsulation of traditional white light LED part is to be directly coated in blue chip surface after silica gel or resin are mixed with fluorescent material, and this encapsulation technology has its inherent defect.Because silica gel (or resin) directly contacts with blue chip with fluorescent material, while causing blue chip work, to dispel the heat not smooth, the working temperature that chip is higher is offset the emission wavelength of fluorescent material, and luminous intensity declines.Simultaneously fluorophor is close to light portion that blue chip light-emitting area will cause fluorophor to be excited to send and is reentered chip and be absorbed and cause luminous loss.In addition, the geometry of fluorescent adhesive layer also can have influence on the final optical property of white light LEDs.Therefore, be necessary to be improved.
Utility model content
The deficiency existing for above-mentioned prior art, the purpose of this utility model is to provide a kind of white light LED part with high-luminous-efficiency and long life.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of white light LED part, comprise substrate, substrate is provided with the optical lens of at least 1 LED chip and parcel LED chip, between substrate and optical lens, be provided with a layer of silica gel, described optical lens is the silica-gel lens of press mold moulding containing fluorescent material.
Preferably, described substrate is provided with reflector.
Preferably, the inside and outside camber line of described optical lens is consistent.
The beneficial effect the utlity model has is: 1) because fluorescent material is located in layer of silica gel, the heat producing when LED chip work cannot directly act on fluorescent material, avoid fluorescent material in hot environment, to produce colour temperature drift, luminous efficiency and the useful life of having improved white light LEDs; 2) because optical lens obtains by press mold moulding, its geometry can be easy to controlled, and then can change fluorescent powder grain concentration and lighting angle on different directions, improves luminous flux and the fluorescence conversion efficiency of white light LEDs.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present utility model.
In figure: 1, substrate; 2, chip; 3, layer of silica gel; 4, optical lens.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1: white light LED part, comprise substrate 1, substrate 1 is provided with at least 1 LED chip 2, uses the hemisphere mould of minor diameter to extrude the coated LED chip 2 of layer of silica gel 3, re-use large diameter hemisphere mould and in layer of silica gel 3, extrude the silica-gel lens that contains fluorescent material, i.e. optical lens 4.On substrate 1, also can be provided with reflector.By such structural design, avoid fluorescent material directly to contact with LED chip 2, and then reduced the operating ambient temperature of fluorescent material.Meanwhile, silica gel good fluidity, the preparation technology's difficulty making reduces.
The above; only embodiment of the present utility model; not the utility model is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection range of the present utility model.
Claims (3)
1. a white light LED part, comprises substrate, and substrate is provided with the optical lens of at least 1 LED chip and parcel LED chip, it is characterized in that: between substrate and optical lens, be provided with a layer of silica gel; Described optical lens is the silica-gel lens of press mold moulding containing fluorescent material.
2. a kind of white light LED part according to claim 1, is characterized in that: described substrate is provided with reflector.
3. a kind of white light LED part according to claim 1, is characterized in that: the inside and outside camber line of described optical lens is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879150.5U CN203707183U (en) | 2013-12-30 | 2013-12-30 | White light LED device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879150.5U CN203707183U (en) | 2013-12-30 | 2013-12-30 | White light LED device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707183U true CN203707183U (en) | 2014-07-09 |
Family
ID=51057581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320879150.5U Expired - Lifetime CN203707183U (en) | 2013-12-30 | 2013-12-30 | White light LED device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707183U (en) |
-
2013
- 2013-12-30 CN CN201320879150.5U patent/CN203707183U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330096 main building, No. 699, No. 101 North Sihu Road, Nanchang hi tech Zone, Jiangxi Patentee after: JIANGXI LATTICEPOWER SEMICONDUCTOR Corp. Address before: 330096 main building, No. 699, No. 101 North Sihu Road, Nanchang hi tech Zone, Jiangxi Patentee before: JIANGXI LATTICEBRIGHT Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |