CN101586791A - Simple energy-saving semiconductor lamp - Google Patents
Simple energy-saving semiconductor lamp Download PDFInfo
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- CN101586791A CN101586791A CNA2009101112925A CN200910111292A CN101586791A CN 101586791 A CN101586791 A CN 101586791A CN A2009101112925 A CNA2009101112925 A CN A2009101112925A CN 200910111292 A CN200910111292 A CN 200910111292A CN 101586791 A CN101586791 A CN 101586791A
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- lamp
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- emitting diode
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to a simple energy-saving semiconductor lamp, relates to an illuminating apparatus of using light-emitting diode (LED). In the semiconductor lamp, commercial power supplies power to AC inverter for improving supply frequency, two output terminal of the AC inverter supplies power to at least one LED lamp string; each LED lamp string has two lamp groups composed by series connection of two groups of LED lamps with same number in sequence, then the two lamp groups are connected reversele in parallel. Problem of the LED need to be driven by low voltage direct current is solved, and after AV inverter the commercial power can light the two LED lamp groups of positive direction and negative direction in alternative. High lightning frequency of the whole can reduce flashes of eyes, and the lights is stable and flexible. Loss of the AC inverter is much lower than loss of the transformer and the rectifier, and so power is saved and cost of circuit is reduced, then lamp is lighter.
Description
Technical field
The present invention relates to a kind of lighting device that adopts light emitting diode.
Background technology
Light emitting diode (LED) is a kind of injection electroluminescence device, has advantages such as volume is little, efficient is high, the life-span is long, non-environmental-pollution, nothing ultraviolet ray pollution.Led technology is constantly progressive at present, and its photoelectric transformation efficiency also constantly promotes.Along with the raising of lumination of light emitting diode intensity, except fields such as general traditional indicator lamp, traffic lights, night scene engineerings, light emitting diode in the application of lighting field more and more widely is regarded as the lighting source of following tool potentiality.
Traditional light emitting diode all must drive with low-voltage DC (DC).Therefore, be the alternating current (AC) of 110-220 volt when supplying using civil power as power supply, must attach transformer and rectifier with the civil power step-down and be converted to low-voltage DC, the light emitting diode that just can guarantee to be installed on the insulation board can normal operation.And transformer and rectifier are with the civil power step-down and be converted in the process of low-voltage DC, power loss up to 15～30% is arranged, so such light emitting diode illuminating apparatus is the power-saving characteristic not, do not given play to the high advantage of light emitting diode photoelectric efficiency yet.
From the time coherence and the spatial coherence characteristic of degree of coherence theory and quasi-monochromatic light theory research light emitting diode, also be that the light beam stack can produce two kinds of extreme effects: a kind of situation is the amplitude stack, forms interference pattern, for relevant fully.Another kind of situation is the intensity stack, does not observe interference pattern, becomes altogether irrelevant.Actual conditions are owing to the characteristic limitations of light source, and the characteristic of light beam stack is to occupy between the two, i.e. partially coherent.To the partially coherent problem, generally consider that from temporal coherence and spatial coherence wherein the temporal coherence comparison is the light wave that the same point light source has certain optical path difference, the spatial coherence comparison be the light wave of space difference.LED source is non-monochromaticjty, has the regular hour coherence; Simultaneously, light emitting diode has certain light-emitting area, has spatial coherence.
It is safety standard that first of illumination apparatus requires, and is compulsory standard; The secondth, satisfy the performance standard of different work and living needs; The 3rd is to satisfy under the prerequisite of above-mentioned condition, considers the efficiency standard.The light of illumination is divided into spatial distribution and the time distributes, and spatial distribution has the energy stack, and the time distribution also has principle of energy superposition, and these two present instruments in aspect all can't be measured.So the efficiency of illumination is the subjective efficiency of eye-observation, is not objective efficiency, but the subjectivity amount that existing apparatus measures can not reflect fully.
Summary of the invention
The present invention aims to provide a kind of simple energy-saving semiconductor lamp.
Technical scheme of the present invention is: a kind of simple energy-saving semiconductor lamp, civil power are to the AC converter power supply that promotes frequency of supply, and two outputs of this AC converter are at least one LED light string power supply; Each LED light string has two lamp groups that the light-emitting diode sequence by two groups of similar numbers is connected into, these two lamp group reverse parallel connections.The light emitting diode number of connecting in each LED light lamp group is decided on the voltage of single light emitting diode selecting for use and the output voltage of AC converter.
The output voltage of described AC converter is identical with the voltage of civil power.
The output frequency of described AC converter is the 30-40 KHz.
Described light emitting diode is installed on the insulation board, and the material of this insulation board employing heat conduction is made and is combined with each other with metallic heat radiating plate.
Described heat sink is provided with radiating fin.
Simple energy-saving semiconductor lamp of the present invention, the present invention adopt AC high frequency power source drive two groups connect in proper order after the LED light lamp group of reverse parallel connection again.When AC converter was output as positive half-wave, LED light lamp group forward was shinny; When AC converter was output as negative half-wave, reverse LED light lamp group was luminous.Compare with traditional light emitting diode illuminating apparatus, the loss of AC converter is far below the loss of transformer and rectifier, so power saving.Do not use transformer and rectifier, can reduce circuit cost, and lighter and handier on Design of Luminaires.Civil power can make forward through AC converter and light with reverse two LED light lamp groups are staggered according to this.Whole glow frequency height can reduce the flickering of human eye, and light is stablized soft.Adapt to vision and the psychological requirement of people to illumination.The output voltage of AC converter is identical with the voltage of civil power, need not boost or step-down, can select the AC converter of simple and inexpensive for use.The light emitting diode response time is very fast, generally can respond the variation of applied voltage in tens nanoseconds.Please referring to light emitting diode response curve shown in Figure 8, the lighting the time of light emitting diode---rise time tr promptly connects power supply and makes luminosity reach normal 10% beginning, until luminosity reaches 90% time of being experienced of normal value; The light emitting diode fall time---fall time tf, promptly normal luminescent decay is to the 10% original time of being experienced.The light emitting diode response time that different materials makes (rise time tr, fall time tf) has nothing in common with each other; As GaAs, GaAsP, its response time＜10 of GaAlAs
-9S, GaP are 10
-7S.Therefore they can be used on the radio frequency system of supply frequency up to 10-100MHZ.Please referring to the normalizing curve of simple energy-saving semiconductor lamp of the present invention shown in Figure 9 optical efficiency experimental result when the different frequency, this experiment shows that the output frequency of AC converter is in the 30-40 kilohertz range time, the luminous efficiency of light emitting diode is higher relatively, so it is energy-conservation and made full use of time and spatial coherence principle of stacking, improve the subjective efficiency of illumination, therefore the characteristics of high energy efficiency are arranged.The material of the insulation board employing heat conduction of installation LED light string is made and is combined with each other with metallic heat radiating plate, and heat sink is provided with the working condition that radiating fin can improve light emitting diode by cooling, the raising whole reliability.
Description of drawings
Fig. 1 is the electrical block diagram of first embodiment of simple energy-saving semiconductor lamp of the present invention.
Fig. 2 is Fig. 1 embodiment Facad structure schematic diagram.
Fig. 3 is the side structure schematic diagram of Fig. 1 embodiment.
Fig. 4 is the perspective view of Fig. 1 embodiment.
Fig. 5 is the local enlarged diagram of the left part of Fig. 4.
Fig. 6 adopts the local enlarged diagram of direct insertion LED for Fig. 1 embodiment.
Fig. 7 adopts the structural representation of the light emitting diode integrated package of chip on board encapsulation for Fig. 1 embodiment.
Fig. 8 is the circuit diagram of second embodiment of simple energy-saving semiconductor lamp of the present invention.
Fig. 9 is the response time curve map of light emitting diode.
Figure 10 is the normalizing curve map of simple energy-saving semiconductor lamp of the present invention luminous efficiency when different frequency.
The specific embodiment
One, embodiment one
Embodiment of simple energy-saving semiconductor lamp of the present invention is the two lamp combinations according to the characteristics design of strip spot, and its circuit as shown in Figure 1.Present embodiment comprises two independently simple energy-saving semiconductor lamps.First simple energy-saving semiconductor lamp comprises AC converter 1 and LED light string 2.Second simple energy-saving semiconductor lamp comprises AC converter 1 ' and LED light string 2 '.
First simple energy-saving semiconductor lamp has the even number light emitting diode.These light emitting diodes can be one or more in the glow colors such as white light, ruddiness, green glow, blue light.It is two groups that these light emitting diodes are divided equally; The light-emitting diode sequence of two groups of similar numbers is serially connected between two outputs 12 of the AC converter 1 that promotes frequency of supply after being connected into 21,22, two lamp group 21,22 reverse parallel connections of two lamp groups, and the input 11 of this AC converter 1 connects civil power.The light emitting diode number of series connection equals the operating voltage of the output voltage of AC converter 1 divided by single light emitting diode in the LED light lamp group 21,22.In the present embodiment, the output voltage of AC converter 1 is all 220V mutually with the voltage of civil power, about 65 of the light emitting diode number that two lamp groups 21,22 are connected respectively.The incoming frequency of AC converter 1 is 50 hertz, and output frequency is the 30-40 KHz.
Second simple energy-saving semiconductor lamp is identical with first simple energy-saving semiconductor lamp, has the light emitting diode of equal number.It is that two groups and order are connected into two lamp groups 21 ', 22 ' that these light emitting diodes are divided equally, be serially connected in behind two lamp groups 21 ', the 22 ' reverse parallel connection between two outputs 12 ' of the AC converter 1 ' that promotes frequency of supply, the input 11 ' of this AC converter 1 ' connects civil power.AC converter 1 ' is identical with AC converter 1.
Please referring to Fig. 2 to Fig. 5, in the present embodiment, insulation board 31 adopts the material (for example pottery or glass or thermal conductive silicon film) of heat conduction to make, the surface and the metallic heat radiating plate 3 of insulation board 31 are combined with each other, and the AC converter 1 of first simple energy-saving semiconductor lamp and AC converter 1 ' and two lamp groups 21 ', 22 ' of 21,22 and second simple energy-saving semiconductor lamps of two lamp groups are installed in another surface of insulation board 31.The surface that insulation board 31 is installed first simple energy-saving semiconductor lamp and second simple energy-saving semiconductor lamp is covered with copper film or the aluminium film that is separated into a plurality of pads 32.Each light emitting diode is welded on two adjacent in each row's pad 32 pads 32 successively, forms two lamp groups 21 ', 22 ' of 21,22 and second simple energy-saving semiconductor lamps of two lamp groups of first simple energy-saving semiconductor lamp.Heat sink 3 can adopt aluminium matter or copper material, as the carrier that supports two simple energy-saving semiconductor lamps, and holds a concurrent post the function of heat radiation, and its back side can be designed to a plurality of radiating fins, increases area of dissipation, strengthens heat-sinking capability.
The lampshade 4 of a transparent semicircle tubular is fixed on the heat sink 3, covers two simple energy-saving semiconductor lamps, forms transparent protective layer; The light that lampshade 4 can make two lamp groups 21 ', 22 ' of 21,22 and second simple energy-saving semiconductor lamps of two lamp groups of first simple energy-saving semiconductor lamp send outwards distributes.Lampshade 4 adopts inorganic or lucite material, makes the effect that the semicircle tubular has astigmatism.For obtaining better astigmatic effect, can atomize at lampshade 4 inwalls and handle or directly be polished into frosting, make light more even.
The two ends of heat sink 3 and cover 4 are set with light fixture dop 5,5 '.Light fixture dop 5,5 ' can adopt metal or plastic cement manufacturing, and its effect is fixedly heat sink 3, lampshade 4 and electrode 6,6 '.
Two electrodes 6 connect two inputs of first simple energy-saving semiconductor lamp AC converter 1 respectively.Two electrodes 6 ' connect two inputs of second simple energy-saving semiconductor lamp AC converter 1 ' respectively.
According to actual needs, the profile of heat sink 3 and lampshade 4 can be done different shapes such as squarely, circle.
Among Fig. 2 to Fig. 5, adopt the light emitting diode of surface patch formula SMT (Surface Mount Technology).Also can adopt the light emitting diode of direct insertion DIP (Dual In-LinePackage) as shown in Figure 6; Perhaps as shown in Figure 7, adopt the light emitting diode integrated package of chip on board encapsulation COB (Chipon Board) mode.
Two, embodiment two
The circuit of second embodiment of simple energy-saving semiconductor lamp of the present invention as shown in Figure 8.Present embodiment can drive LED light string 20 and LED light string 20 ' simultaneously with an AC converter 10, perhaps drives LED light string 20 or LED light string 20 ' separately.
Present embodiment has the even number light emitting diode, and the glow color of these light emitting diodes can be one or more in white light, ruddiness, green glow, the blue light.It is four groups that these light emitting diodes are divided equally; The light-emitting diode sequence of two groups of similar numbers is connected into 210,220, two lamp group 210,220 reverse parallel connections of two lamp groups of LED light string 20, is serially connected between two outputs 120 of AC converter 10 through K switch 1 then.The light-emitting diode sequence of two groups of similar numbers is connected into 210 ', 220 ', two lamp groups 210 ' of two lamp groups, the 220 ' reverse parallel connection of LED light string 20 ', is serially connected between two outputs 120 of AC converter 10 through K switch 2 then.The input 110 of AC converter 10 connects civil power.The light emitting diode number of LED light lamp group 210,220,210 ', 220 ' middle series connection equals the operating voltage of the output voltage of AC converter 10 divided by single light emitting diode.In the present embodiment, the output voltage of AC converter 10 is all 220V mutually with the voltage of civil power, and four lamp groups 210,220,210 ', 220 ' are about 65 of the light emitting diode number of series connection respectively.The incoming frequency of AC converter 10 is 50 hertz, and output frequency is the 30-40 KHz.
Unlatching closure by gauge tap K1 and K switch 2, can regulate and control LED light string 20 and all unlatchings of LED light string 20 ', perhaps have only LED light string 20 or LED light string 20 ' to open, to realize energy-conservation and in good time brilliance control.
The frame for movement of present embodiment and the frame for movement of last embodiment are basic identical, repeat no more here, but the operation part of two K switch 1, K2 should be located at the outside of heat sink, so that implement control.
The above only is preferred embodiment of the present invention, does not limit scope of the invention process with this, and the equivalence of doing according to technical scheme of the present invention and description changes and modification, all should belong to the scope that the present invention is contained.
Claims (5)
1. simple energy-saving semiconductor lamp is characterized in that: civil power is to the AC converter power supply that promotes frequency of supply, and two outputs of this AC converter are at least one LED light string power supply; Each LED light string has two lamp groups that the light-emitting diode sequence by two groups of similar numbers is connected into, these two lamp group reverse parallel connections.
2. a kind of simple energy-saving semiconductor lamp according to claim 1 is characterized in that: the output voltage of described AC converter is identical with the voltage of civil power.
3. a kind of simple energy-saving semiconductor lamp according to claim 2 is characterized in that: the output frequency of described AC converter is the 30-40 KHz.
4. according to claim 1 or 2 or 3 described a kind of simple energy-saving semiconductor lamps, it is characterized in that: described light emitting diode is installed on the insulation board, and the material of this insulation board employing heat conduction is made and is combined with each other with metallic heat radiating plate.
5. a kind of simple energy-saving semiconductor lamp according to claim 4 is characterized in that: described heat sink is provided with radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101112925A CN101586791A (en) | 2009-03-13 | 2009-03-13 | Simple energy-saving semiconductor lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101112925A CN101586791A (en) | 2009-03-13 | 2009-03-13 | Simple energy-saving semiconductor lamp |
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| Publication Number | Publication Date |
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| CN101586791A true CN101586791A (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009101112925A Pending CN101586791A (en) | 2009-03-13 | 2009-03-13 | Simple energy-saving semiconductor lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858510A (en) * | 2010-04-30 | 2010-10-13 | 李守运 | Bi-directional super-high-power LED module |
| EP2390918A2 (en) | 2010-05-24 | 2011-11-30 | APT Electronics Ltd. | Light emitting device using AC and manufacturing method of the same |
| CN102593113A (en) * | 2011-01-10 | 2012-07-18 | 展晶科技(深圳)有限公司 | Light emitting diode packaging structure and light emitting diode crystal grains thereof |
| CN103470997A (en) * | 2013-05-13 | 2013-12-25 | 杭州璞莱科技有限公司 | Output circuit of wire-saving LED (light-emitting diode) lamp string cluster |
| US9005651B2 (en) | 2009-08-18 | 2015-04-14 | Tohoku University | Sustained drug delivery system |
-
2009
- 2009-03-13 CN CNA2009101112925A patent/CN101586791A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9005651B2 (en) | 2009-08-18 | 2015-04-14 | Tohoku University | Sustained drug delivery system |
| CN101858510A (en) * | 2010-04-30 | 2010-10-13 | 李守运 | Bi-directional super-high-power LED module |
| EP2390918A2 (en) | 2010-05-24 | 2011-11-30 | APT Electronics Ltd. | Light emitting device using AC and manufacturing method of the same |
| CN102593113A (en) * | 2011-01-10 | 2012-07-18 | 展晶科技(深圳)有限公司 | Light emitting diode packaging structure and light emitting diode crystal grains thereof |
| US8748913B2 (en) | 2011-01-10 | 2014-06-10 | Advanced Optoelectronics Technology, Inc. | Light emitting diode module |
| CN102593113B (en) * | 2011-01-10 | 2015-04-01 | 展晶科技(深圳)有限公司 | Light emitting diode packaging structure |
| CN103470997A (en) * | 2013-05-13 | 2013-12-25 | 杭州璞莱科技有限公司 | Output circuit of wire-saving LED (light-emitting diode) lamp string cluster |
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Open date: 20091125 |