CN103090233B - Light-emitting diode (LED) - Google Patents
Light-emitting diode (LED) Download PDFInfo
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- CN103090233B CN103090233B CN201310026054.0A CN201310026054A CN103090233B CN 103090233 B CN103090233 B CN 103090233B CN 201310026054 A CN201310026054 A CN 201310026054A CN 103090233 B CN103090233 B CN 103090233B
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Abstract
The invention discloses a light-emitting diode (LED) which is good in radiating effect on the condition that a dark area is not produced. The LED comprises a base seat, two copper sheets are arranged on the bottom of the base seat, a groove is formed in the base seat, one copper sheet forms the bottom of the groove, 3-4 LED light sources are in serial connection on the one copper sheet, the two copper sheets are also in serial connection and located at the two ends of the serial circuit, and interior of the groove is full of glue. The LED has the advantages that the 3-4 LED light sources are in serial connection on the one copper sheet, the good thermal conductivity of the one copper sheet is utilized to achieve heat radiating, the heat radiating effect is very good, and meanwhile the cost of products can be lowered.
Description
Technical field
The present invention relates to a kind of LED diode.
Background technology
LED white light emitting diode belongs to Energy--Saving Illuminating Source of new generation, belong to solid-state light emitters, because of its have efficiently, the distinguishing feature of energy-saving and environmental protection, be applied to indoor and outdoor lighting, display backlight, bulkhead lamp capable, Tunnel Lamp by light is general, the lighting fields such as street lamp, along with its application of decline gradually of LED price is more wide, finally generally can be accepted by masses, become the lighting source of forth generation gradually.Development because of LED white light emitting diode is that progression level increases, the development and change of current LED outward appearance are improving gradually from the basis of initial appearance structure all, cause LED outward appearance of a great variety, power is also by initial 0.06W high-power integrated more than 100W till now.Current LED daylight lamp (1.2 meters and 0.6 meter) starts to be commonly used to the traditional fluorescent lamp of replacement, although optimizing so far for the LED diode configuration design formed needed for LED daylight lamp, but has following shortcoming when actual production:
1, in order to reach the uniform hot spot effect of LED, use lower-powered LED diode (as 3528 diodes), the quantity increasing LED diode realizes, but overall diode price is higher.
2, in order to reduce diode cost, power middle power LED diode (as 3014 and 2835 diodes) bigger than normal is adopted to realize, usage quantity is decreased because lamp power is bigger than normal, but the diode appearance shape of power (0.1 ~ 0.8W) is all based on square and circular diode at present, the spacing in fixing length between diode is caused to become large, certain impact can be produced to the hot spot effect of lamp, produce dark space, if for the efficiency that also can affect power supply during bulb lamp, increase the cost of power supply.
3, the LED major part of middle power is all the chip manufacturing of power in adopting, and the chip area of middle power (0.1 ~ 0.8W) mostly concentrates on 600 ~ 800um
2, when normal work, junction temperature of chip is more concentrated, and require higher to heat conduction and heat dispersion, product stability can reduce.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of when not producing dark space, the good LED diode of radiating effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of LED diode, comprise pedestal, the bottom of pedestal is provided with two copper sheets, is provided with groove in described pedestal, and one of them copper sheet forms the bottom of groove, this copper sheet is in series with 3 ~ 4 LED light sources, and two copper sheets are also cascaded, two copper sheets are positioned at the two ends of this series circuit, are full of transparent glue in groove.
Described groove is divided into three layers from top to bottom, below one deck be mounting layer, intermediate layer is luminescent layer, above one deck be barrier layer.
Described LED light source is arranged in mounting layer.
The cross section of described luminescent layer is inverted trapezoidal, and the cross section on mounting layer and barrier layer is inverted trapezoidal.
Angle between cross section inverted trapezoidal two waist of described luminescent layer is 150 degree.
Distance between adjacent LED light source is less than 10mm.
The long 7.5mm of described pedestal, wide 2mm.
The invention has the beneficial effects as follows: be connected on copper sheet by 3 ~ 4 LED light sources, utilize the thermal conductive resin of copper sheet, realize heat radiation, radiating effect is fine.
Accompanying drawing explanation
Fig. 1 is the front view of LED diode of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the composition graphs of copper sheet and pedestal.
In figure: 1, pedestal, 2, left copper sheet, 3, right copper sheet, 4, LED light source, 5, glue, 6, mounting layer, 7, luminescent layer, 8, barrier layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, describe specific embodiment of the invention scheme in detail.
As shown in Figure 1, LED diode of the present invention, comprise pedestal 1, the bottom of pedestal 1 is provided with two copper sheets---left copper sheet 2 and right copper sheet 3---shown in Fig. 2, groove is provided with in pedestal 1, one of them copper sheet (right copper sheet 3) forms the bottom of groove, this copper sheet is in series with 3 ~ 4 LED light sources 4, and formation series circuit that left copper sheet 2 and right copper sheet 3 be also cascaded, when reality uses, as long as be electrified by left copper sheet 2 and right copper sheet 3 both positive and negative polarity as diode, LED diode will be luminous.Left copper sheet 2 and right copper sheet 3 are positioned at the two ends of this series circuit, are full of transparent glue 5 in groove, after glue 5 solidifies, just the wire between LED light source 4 can be fixed, and avoid fragile wire to receive and tear and break.
As shown in Figure 3, described groove is divided into three layers from top to bottom, below one deck be mounting layer 6, intermediate layer is luminescent layer 7, above one deck be barrier layer 8.Described LED light source 4 is arranged in mounting layer.In order to increase the light-emitting zone of LED light source 4, the cross section of described luminescent layer is inverted trapezoidal, and the angle between these trapezoidal two waists is 150 degree.The cross section on mounting layer and barrier layer is inverted trapezoidal.In order to reduce luminous dark space, the distance between adjacent LED light source 4 is less than 10mm.If adopt long 7.5mm, the pedestal of wide 2mm, and above-mentioned LED light source 4 adopts low-power (below 0.1W), and the LED diode produced just can form a middle power (0.1 ~ 0.8W).
Advantage of the present invention is:
One, its lighting angle is larger at 150 degree, and light efficiency is higher by 3 ~ 5% than the LED diode of other types;
Two, because of itself hot spot effect very evenly therefore be easier to solve hot spot problem for lighting time ratio;
Two, because it is the structure of strip, except being applicable to the circular luminaires such as bulb lamp, be also specially adapted to the light fixture of strip, the usage quantity of lamp pearl can be reduced, reduce the cost shared by lamp pearl in lamp applications; Example: the fluorescent tube of a 1.2 meters/18W, if need 300 with 3528 lamp pearls, 3014 lamp pearls need 180, and 2835 lamp pearls need 120, and 7520 lamp pearls (LED diode of the present invention) then only need 70.Decrease production cost.Wherein lamp pearl is those skilled in the art's another address to LED diode.3528 refer to 3.5mm × 2.8mm, and other by that analogy.
Three, because 3 ~ 4 LEDs light source series connection back light pearl driving voltages are left in 9V ~ 12, single the higher light fixture for small volume of lamp pearl voltage, little lamp pearl series connection can be adopted thus the object that after reaching series connection, required driving voltage is higher, such Power Management Design is relatively easy, and power supply cost also can reduce;
Four, because this profile lamp pearl is strip, its fin (right copper sheet 3) is also strip, the area of radiating area reaches 6 square millimeters, and 3014 lamp pearl area of dissipations of current extensive use only have 1.3 square millimeters, and 2835 lamp pearl area of dissipations only have 4 square millimeters; 3 ~ 4 wafers are uniformly distributed in surface, because chip power is less, junction temperature during work is also lower, LED light source junction temperature also can be uniformly distributed on whole fin (right copper sheet 3), be not concentrated in certain of fin, heat conduction and heat radiation more easily process, so the light fixture of assembling operationally, heat is relatively low, is greatly improved to the stability of light fixture.
Stability when LED diode of the present invention can promote the work of light fixture when applying in a word, also has greatly improved to the life-span of light fixture, most importantly can reduce the cost of light fixture itself, make product that general population more can be allowed to accept.
Claims (1)
1.LED diode, comprise pedestal, the bottom of pedestal is provided with two copper sheets, it is characterized in that: in described pedestal, be provided with groove, one of them copper sheet forms the bottom of groove, this copper sheet is in series with 3 ~ 4 LED light sources, and two copper sheets are also cascaded, two copper sheets are positioned at the two ends of this series circuit, transparent glue is full of in groove, described groove is divided into three layers from top to bottom, one deck is mounting layer below, intermediate layer is luminescent layer, one deck is barrier layer above, described LED light source is arranged in mounting layer, the cross section of described luminescent layer is inverted trapezoidal, the cross section on mounting layer and barrier layer is inverted trapezoidal, angle between cross section inverted trapezoidal two waist of described luminescent layer is 150 degree, distance between adjacent LED light source is less than 10mm, the long 7.5mm of described pedestal, wide 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026054.0A CN103090233B (en) | 2013-01-24 | 2013-01-24 | Light-emitting diode (LED) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026054.0A CN103090233B (en) | 2013-01-24 | 2013-01-24 | Light-emitting diode (LED) |
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| Publication Number | Publication Date |
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| CN103090233A CN103090233A (en) | 2013-05-08 |
| CN103090233B true CN103090233B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310026054.0A Active CN103090233B (en) | 2013-01-24 | 2013-01-24 | Light-emitting diode (LED) |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200961829Y (en) * | 2006-09-01 | 2007-10-17 | 一诠精密工业股份有限公司 | Surface adhered LED support structure with metal reflecting component |
| CN101308836B (en) * | 2007-05-18 | 2011-11-02 | 富士迈半导体精密工业（上海）有限公司 | Light emitting diode, light emitting diode component and llight emitting diode lamp string |
| CN101078509A (en) * | 2007-06-29 | 2007-11-28 | 上海隆光蜃景光电科技有限公司 | Large power LED lamp head |
| CN201237155Y (en) * | 2008-07-25 | 2009-05-13 | 弘凯光电(深圳)有限公司 | Light emitting diode |
| CN101832528B (en) * | 2009-03-09 | 2014-07-16 | 亿光电子工业股份有限公司 | Heat radiating module for light-emitting device and LED device |
| CN101737670A (en) * | 2009-12-11 | 2010-06-16 | 安徽华东光电技术研究所 | Direct-side lighting combined hybrid backlight |
| CN102313150A (en) * | 2010-06-29 | 2012-01-11 | 昆山市玉山镇城北丰怡五金机电商行 | Light emitting diode (LED) module for increasing light emitting efficiency |
| CN201819071U (en) * | 2010-08-23 | 2011-05-04 | 丁振有 | Light source module |
| CN203176787U (en) * | 2013-01-24 | 2013-09-04 | 江苏华程光电科技有限公司 | Led diode |
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