CN203286338U - LED (light emitting diode) bulb - Google Patents
LED (light emitting diode) bulb Download PDFInfo
- Publication number
- CN203286338U CN203286338U CN2013202944583U CN201320294458U CN203286338U CN 203286338 U CN203286338 U CN 203286338U CN 2013202944583 U CN2013202944583 U CN 2013202944583U CN 201320294458 U CN201320294458 U CN 201320294458U CN 203286338 U CN203286338 U CN 203286338U
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- CN
- China
- Prior art keywords
- ceramic
- lampshade
- lamp
- led
- board
- 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 - Fee Related
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 5
- 238000005286 illumination Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 1
- 238000007639 printing Methods 0.000 abstract 1
- 238000007650 screen-printing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical class [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides an LED (light emitting diode) bulb. The bulb comprises a lampshade, a lamp holder, a constant current driving power supply, a ceramic radiator, a ceramic circuit board, LED lamp beads and an aluminium alloy lamp base. The bulb has the beneficial effects that the ceramic radiator is arranged in the lampshade, a metal auxiliary radiating part is arranged outside the lampshade, and a plurality of radiating air holes are distributed on the metal auxiliary radiating part, so that the radiating area is greatly increased and the lamp has a better overall radiating effect; the ceramic circuit board is formed by printing a circuit layer on a ceramic board by utilizing the screen printing technology and sintering the product at high temperature, thus prolonging the practical life of a surface mounted device and prolonging the whole life of the lamp; the lamp holder is made of resin, so that the light is softer; and the irradiation range of the light is expanded via a lens which diffuses the light, thus providing a more comfortable illumination space.
Description
Technical field
The utility model relates to a kind of LED bulb, relates in particular to the LED bulb in a kind of photoelectric lighting field.
Background technology
Since 19th-century Edison invented incandescent lamp, brought in the dark bright and happy to the mankind.But because service life of incandescent lamp is short, electro-optical efficiency is low, and most of electric energy is used for generating heat, and small part is luminous, so energy consumption is large, at current Energy-saving Society, will withdraw from gradually electric light source main flow illumination market.European Union progressively eliminates the application of incandescent lamp since on September 1st, 2009.
Second stage, the fluorescent lamp that common halogen-phosphate fluorescent material is made is after the course that has experienced nearly 60 years, although also exist many defects, in constantly improvement, improve among the superiority of its quality, price make it in market always in occupation of suitable share.
Phase III, at twentieth century, the 1970s and 1980s rare-earth trichromatic fluorescent powder is applied to energy-conservation fluorescent lamp.With respect to incandescent lamp, power saving fluorescent lamp is because its light efficiency is high, and the life-span is long, and obvious energy conservation becomes the major product of twentieth century whole world Green Lighting Project.But, by ultraviolet excited light-emitting, there is harmful mercury element in fluorescent lamp, not environmental protection; Stroboscopic; High pressure,, there is potential danger in activated phosphor; Therefore the shortcomings such as ballast and starter power consumption are large are not still a kind of very good green illumination electric light sources.Along with the time is put off also and will be eliminated gradually.
Along with the electric light source scientific technological advance, semiconductor light-emitting-diode (LED) sixties appearred in twentieth century.Through decades development, LED has obtained the technical important breakthroughs such as extension, chip in the nineties, become the 4th generation electric light source, start to enter the practical stage, and demonstrate the large advantage of its tool: optical efficiency is high; The light quality is good; Energy consumption is little; Life-span is long; Reliability and durability; Applying flexible; Safe and reliable; Environmental protection; Response time is short.Particularly through in recent years development, LED is just attracting global sight with its intrinsic superiority., for the application of LED, at the extensively universal of general lighting field, be that people expect the most in the world.At present, the application of illumination LED is confined to the particular forms such as local lighting, decorative lighting, outline lighting, and people wish that urgently LED becomes general lighting light source of new generation, and each illumination company is all at the active development Related product.In addition, many buildings and Lighting designer are thought, use LED to can be them and increase many new designs, and they can utilize LED that the inspiration of oneself and design are specialized, so and the design sample that produces can be watched for people easily, this also is very beneficial for popularizing of LED.With the perfect fusion of manufacturer, designer and user's imagination, the new application that developing traditional lighting light source can't be realized is most important.Along with the LED technology further develops, LED will become the revolutionary green illumination of 21st century mankind a new generation electric light source, will be global Lighting Industry prior development direction from now on.
Traditional LED encapsulating structure, be generally with conduction or non-conductive adhesive is contained in chip in undersized reflector or on slide holder, forms with epoxy encapsulation completed the inside and outside connection of device by spun gold after, and its thermal resistance is up to 250～300 ℃/W.If adopt the LED packing forms of traditional type, will cause because heat radiation is bad junction temperature of chip to rise rapidly and epoxy carbonization flavescence, thereby cause the acceleration light decay of device until lost efficacy, even because causing open circuit, the stress that thermal expansion rapidly produces lost efficacy.
The utility model content
In order to address the above problem, the utility model is intended to invent the LED bulb of a kind of good heat dissipation effect and long service life.
A kind of LED bulb comprises lampshade, lamp holder, constant-current driving power supply, ceramic heat sink, ceramic circuit-board, LED lamp pearl and aluminium alloy lamp socket, the lampshade lower end is connected with lamp holder, the lamp holder lower end is provided with the aluminium alloy lamp socket, the lampshade middle part is provided with ceramic circuit-board, the ceramic circuit-board upside is provided with direct-current LED lamp pearl, be provided with ceramic heat sink in lampshade, be fixed with constant-current driving power supply in ceramic heat sink, the lampshade outside is provided with metal auxiliary heat dissipation spare, be distributed with some heat radiation air-permeating holes on metal auxiliary heat dissipation spare, lamp holder is the resin lamp holder.
Preferably, described ceramic circuit-board table side is printed with line layer.
Preferably, described ceramic circuit-board downside is compounded with heat sink.
The beneficial effects of the utility model are:
1. be provided with ceramic heat sink in lampshade, the lampshade outside is provided with metal auxiliary heat dissipation spare, is distributed with some heat radiation air-permeating holes on metal auxiliary heat dissipation spare, has greatly increased area of dissipation, makes light fixture integral heat sink better effects if;
2. ceramic circuit-board utilizes fabrography that line layer is printed on ceramic wafer, by high temperature sintering, forms, and the silver slurry that heat conductivility is excellent is made the poplar ceramic substrate with the ceramic wafer of high insulation, high heat conduction.Composite ceramic heat-dissipating material is made through advanced technologies such as ball milling, precise formings with aluminium chloride, silica and rare earth element, its surface has higher radiance and larger microcosmic surface amasss, its radiance 〉=0.95, thermal conductivity factor (20 ℃ of W/m.K) is 8, density is 3.7g/cm
3Specific heat capacity 820J/kg.K, proof voltage ﹥ 5000V/s, chemical stability is good, can be delivered to heat in air quickly and effectively, and LED lamp pearl is worked at a lower temperature, part material takes into full account its heat conduction, heat dissipation characteristics, to obtain good overall thermal characteristics, increase the physical life of surface mount device, improve the bulk life time of light fixture;
3. lamp holder is the resin lamp holder, makes light more soft, and light can evenly be spread, and light fixture carries out the secondary light-distribution design, has enlarged the range of exposures of light by the lens of diffusing light, and more comfortable illumination space is provided.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, structure of the present utility model is described further.
Embodiment 1
as shown in Figure 1, a kind of LED bulb comprises lampshade 1, lamp holder 6, constant-current driving power supply 4, ceramic heat sink 2, ceramic circuit-board 3, LED lamp pearl and aluminium alloy lamp socket 5, lampshade 1 lower end is connected with lamp holder 6, lamp holder 6 lower ends are provided with aluminium alloy lamp socket 5, lampshade 1 middle part is provided with ceramic circuit-board 3, ceramic circuit-board 3 upsides are provided with direct-current LED lamp pearl, be provided with ceramic heat sink 2 in lampshade 1, be fixed with constant-current driving power supply 4 in ceramic heat sink 2, lampshade 1 outside is provided with metal auxiliary heat dissipation spare 7, be distributed with some heat radiation air-permeating holes on metal auxiliary heat dissipation spare 7, lamp holder 6 is the resin lamp holder, ceramic circuit-board 4 table sides are printed with line layer, ceramic circuit-board 4 downsides are compounded with heat sink 3.
Claims (3)
1. LED bulb, it is characterized in that: comprise lampshade, lamp holder, constant-current driving power supply, ceramic heat sink, ceramic circuit-board, LED lamp pearl and aluminium alloy lamp socket, the lampshade lower end is connected with lamp holder, the lamp holder lower end is provided with the aluminium alloy lamp socket, the lampshade middle part is provided with ceramic circuit-board, the ceramic circuit-board upside is provided with direct-current LED lamp pearl, be provided with ceramic heat sink in lampshade, be fixed with constant-current driving power supply in ceramic heat sink, the lampshade outside is provided with metal auxiliary heat dissipation spare, be distributed with some heat radiation air-permeating holes on metal auxiliary heat dissipation spare, lamp holder is the resin lamp holder.
2. LED bulb according to claim 1, it is characterized in that: described ceramic circuit-board table side is printed with line layer.
3. LED bulb according to claim 1, it is characterized in that: described ceramic circuit-board downside is compounded with heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202944583U CN203286338U (en) | 2013-05-27 | 2013-05-27 | LED (light emitting diode) bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202944583U CN203286338U (en) | 2013-05-27 | 2013-05-27 | LED (light emitting diode) bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286338U true CN203286338U (en) | 2013-11-13 |
Family
ID=49542699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202944583U Expired - Fee Related CN203286338U (en) | 2013-05-27 | 2013-05-27 | LED (light emitting diode) bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286338U (en) |
-
2013
- 2013-05-27 CN CN2013202944583U patent/CN203286338U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20131113 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |