CN202598208U - White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index - Google Patents
White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index Download PDFInfo
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- CN202598208U CN202598208U CN201220175967XU CN201220175967U CN202598208U CN 202598208 U CN202598208 U CN 202598208U CN 201220175967X U CN201220175967X U CN 201220175967XU CN 201220175967 U CN201220175967 U CN 201220175967U CN 202598208 U CN202598208 U CN 202598208U
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Abstract
The utility model provides a white light light-emitting diode (LED) with adjustable color-temperature and color-rendering index and relates to an LED. The white light LED with the adjustable color-temperature and the color-rendering index comprises a substrate, a packaging body provided with yellow fluorescent powder in disperse mode and an LED unit return circuit arranged inside the substrate and the packaging body, and is characterized in that the LED unit return circuit comprises a power source, a white light control return circuit, a blue light LED chip set in electric connection with the white light control return circuit, a red light control return circuit, a red light LED chip set in electric connection with the red light control return circuit, a green light control return circuit and a green light LED chip set in electric connection with the green light control return circuit, wherein the power source respectively supplies drive current for the blue light LED chip set, the red light LED chip set and the green light LED chip set through the white light control return circuit, the red light control return circuit and the green light control return circuit. The substrate is in electric connection with the blue light LED chip set, the red light LED chip set and the green light LED chip set. The white light LED with the adjustable color-temperature and the color-rendering index applies to the adjustable color-temperature and the color-rendering index of the LED.
Description
Technical field
The utility model relates to light emitting diode (LED), is specifically related to a kind of adjustable color temperature and shows the white light LEDs that refers to.
Background technology
LED is a kind of semiconductor that can electric energy be converted into luminous energy.The white light LEDs of high brightness is long with its life-span, light efficiency is high, well conventional light source such as cracky, the radiationless and low-power consumption advantage that can't compare with it and be widely used in lighting field not of anti-seismic performance; For example in a lot of families, mechanism, government and commercial Application, white light LEDs is replacing incandescent lamp rapidly becomes main lighting source.
See figures.1.and.2; The packaging body 300 that existing white light LEDs comprises pedestal 100, is located at the blue-ray LED element loop 200 on the pedestal 100 and is scattered with yellow fluorescent powder; Blue-ray LED element loop 200 is made up of blue-light LED chip group and white light control loop that a plurality of blue-light LED chips 210 are composed in series; And be packaged in the packaging body 300; The anode of the blue-light LED chip 210 of blue-ray LED element loop 200 electrically connects the positive electrode 410 of power supply, and negative electrode electrically connects the negative electrode 420 of power supply, and power supply provides drive current through positive electrode 410 and negative electrode 420 for blue-ray LED element loop 200.The circuit block diagram of above-mentioned blue-ray LED element loop 200 is as shown in Figure 3, and power supply provides drive current through the white light control loop for the blue-light LED chip group, and then produces white light.
What above-mentioned LED adopted is that blue-light LED chip adds yellow fluorescent powder, after yellow fluorescent powder is stimulated, sends sodium yellow, and like this, blue light and yellow light mix are sent white light.Among the above-mentioned LED; The colour temperature of light source and the apparent characteristic decision that refers to main by fluorescent material; Composition through changing fluorescent material and account for glue proportion and can regulate the colour temperature of white light source and show and refer to, but in actual product is made, a kind of fluorescent material composition and account for the corresponding one type of light source of glue proportion; Be the colour temperature of packaged good light source and show and refer to fix, can't be when illumination dynamic adjustments light source color temperature and show the variation that refers to.
The utility model content
The utility model technical problem to be solved is, a kind of adjustable color temperature is provided and shows the white-light LED structure that refers to, improves the colour rendering of white light LEDs, and makes that the colour temperature of led light source is adjustable, thereby solve the problem in the background technology.
In order to solve the problems of the technologies described above; The thought of the utility model is to excite yellow fluorescent powder to produce white light through blue-light LED chip; Add red LED chip and green light LED chip, and pass through the size of the electric current of adjusting red LED chip and green light LED chip, regulate colour temperature and show finger.In addition, can also add the red LED chip of different wave lengths and the green light LED chips of many group different wave lengths organized on this basis more, make its spectrum more abundant, improve apparent the finger.
A kind of adjustable color temperature of the utility model and the white light LEDs that shows finger; Comprise pedestal, be scattered with the packaging body of yellow fluorescent powder and be located at pedestal and the LED element loop of package interior; Said LED element loop comprises power supply, white light control loop and the blue-light LED chip group that is electrically connected with it, ruddiness control loop and the red LED chip group that is electrically connected with it; With green glow control loop and the green light LED chipset that is electrically connected with it, said power supply is respectively blue-light LED chip group, red LED chip group and green light LED chipset through white light control loop, ruddiness control loop and green glow control loop drive current is provided.Said pedestal and blue-light LED chip group, red LED chip group, green light LED chipset electrically connect.Wherein, said blue-light LED chip group, red LED chip group, green light LED chipset are packaged in the packaging body.
Further, said ruddiness control loop and the red LED chip group that is electrically connected with it be N ruddiness control loop and with this N the N that the ruddiness control loop is electrically connected respectively red LED chip group, wherein N 1.Not on the same group the wave band of red LED chip in the said red LED chip group is different.
Further, said green glow control loop and the green light LED chipset that is electrically connected with it be N green glow control loop and with this N the N that the green glow control loop is electrically connected respectively green light LED chipset, wherein N 1.Not on the same group the wave band of green light LED chip in the said green light LED chipset is different.
Further, said packaging body adopts epoxy resin or silica gel transparent material to process.
Adjustable color temperature of the utility model and the white light LEDs that shows finger; Excite yellow fluorescent powder to produce white light by the blue-light LED chip group; Said blue-light LED chip group is perhaps to be composed in series by the blue-light LED chip of many same wave bands by a blue-light LED chip, and its number is by required brightness decision.The same wave band of blue-light LED chip is meant that in 2.5 nanometer range the concrete subrane of blue chip is: 447.5nm-450nm, 450nm-452.5nm, 452.5nm-455nm, 455nm-457.5nm, 457.5nm-460nm, 460nm-462.5nm.Above-mentioned yellow fluorescent powder accounts for the 7%-15% of glue proportion.Said glue is silica gel or epoxy resin.In general, the white light reference color temperature that excites yellow fluorescent powder to produce by the blue-light LED chip group is 7000k-7500k.
Said red LED chip group is perhaps to be composed in series by the red LED chip of many same wave bands by a red LED chip, and its number is by required brightness decision.The same wave band of red LED chip is meant that in 5 nanometer range the concrete subrane of red light chips is: 610nm-615nm, 615nm-620nm, 620nm-625nm, 625nm-630nm, 630nm-635nm, 635nm-640nm.The first ruddiness control loop refers to the loop of the first red LED chip group and driving power composition thereof, and the second ruddiness control loop refers to the loop of the second red LED chip group and driving power composition thereof, by that analogy.
Said green light LED chipset is perhaps to be composed in series by the green light LED chip of many same wave bands by a green light LED chip, and its number is by required brightness decision.The same wave band of green light LED chip is meant that in 5 nanometer range the concrete subrane of green glow chip is: 510nm-515nm, 515nm-520nm, 520nm-525nm, 525nm-530nm, 530nm-535nm.The first green glow control loop refers to the loop of the first green light LED chipset and driving power composition thereof, and the second green glow control loop refers to the loop of the second green light LED chipset and driving power composition thereof, by that analogy.
Used said structure, the utility model compared with prior art has the following advantages:
1. in the packaging body of white light LEDs, be provided with the independently control loop and the led chip group separately of multichannel; Wherein, One the tunnel is the white light control loop of known and the blue-light LED chip group that is connected in series with it, and blue light is provided, and the yellow light mix of sending after being stimulated with yellow fluorescent powder forms white light; One the tunnel is at least one ruddiness control loop and the red LED chip group that is electrically connected with it, and ruddiness is provided, and changes colour temperature and increases the colour rendering index of LED; Also have one the tunnel to be at least one green glow control loop and the green light LED chipset that is electrically connected with it, green glow is provided, change colour temperature and increase the colour rendering index of LED;
2. use the red LED chip of many group wave bands and the green light LED chip of many group wave bands; Can make its spectrum more abundant; Replenish in the spectrum to a certain extent and lack part, more can improve colour rendering index than single wave band red LED chip and single wave band green light LED chip;
3. in addition; Said power supply is respectively blue-light LED chip group, red LED chip group and green light LED chipset through white light control loop, ruddiness control loop and green glow control loop drive current is provided; But dialogue photocontrol loop, ruddiness control loop and green glow control loop are adjusted drive current respectively; Thereby reach the purpose of adjustment colour temperature, when hanging down colour temperature, the brightness of red LED chip group and green light LED chipset is expressible higher; If will reduce illumination, only need each loop current size of adjustment to get final product.
Description of drawings
Fig. 1 is the structural representation of existing white light LEDs;
Fig. 2 is the cutaway view of existing white light LEDs;
Fig. 3 is the circuit diagram of the LED element loop of existing white light LEDs;
Fig. 4 is the circuit diagram of LED element loop of the embodiment 1 of the utility model white light LEDs;
Fig. 5 is the structural representation of the embodiment 1 of the utility model white light LEDs;
Fig. 6 is the circuit diagram of LED element loop of the embodiment 2 of the utility model white light LEDs;
Fig. 7 is the structural representation of the embodiment 2 of the utility model white light LEDs.
The specific embodiment
Combine the accompanying drawing and the specific embodiment that the utility model is further specified at present.
Embodiment 1
A kind of adjustable color temperature of the utility model and the white light LEDs that shows finger comprise pedestal, are scattered with the packaging body of yellow fluorescent powder and are located at pedestal and the LED element loop of package interior, and said packaging body adopts epoxy resin or silica gel transparent material to process.
Like Fig. 4 and shown in Figure 5, said LED element loop comprises: the green light LED element loop 202 that red-light LED element loop 201, green glow control loop that blue-ray LED element loop 200, ruddiness control loop that power supply, white light control loop and the blue-light LED chip group that is electrically connected with it constitute and the red LED chip group that is electrically connected with it constitute and the green light LED chipset that is electrically connected with it constitute.Said blue-ray LED element loop 200, red-light LED element loop 201 and green light LED element loop 202 are independent separately, are connected to the both positive and negative polarity of power supply.Said power supply is that blue-light LED chip group, red LED chip group and green light LED chipset provide drive current through white light control loop, ruddiness control loop and green glow control loop.Wherein said blue-light LED chip group, red LED chip group, green light LED chipset are packaged in the packaging body.
Said pedestal and blue-light LED chip group, red LED chip group, green light LED chipset electrically connect.
Said blue-light LED chip group is perhaps to be composed in series by the blue-light LED chip of many same wave bands by a blue-light LED chip; Its number is by required brightness decision; The blue-light LED chip group of present embodiment is composed in series by the blue-light LED chip of many same wave bands; Positive pole after the series connection is connected in the positive pole 410 of power supply, and the negative pole after the series connection is connected in the negative pole 420 of power supply.Said red LED chip group is perhaps to be composed in series by the red LED chip of many same wave bands by a red LED chip; Its number is by required brightness decision; The red LED chip group of present embodiment is composed in series by the red LED chip of many same wave bands; Positive pole after the series connection is connected in the positive pole 410 of power supply, and the negative pole after the series connection is connected in the negative pole 420 of power supply.Said green light LED chipset is perhaps to be composed in series by the green light LED chip of many same wave bands by a green light LED chip; Its number is by required brightness decision; The green light LED chipset of present embodiment is composed in series by the green light LED chip of many same wave bands; Positive pole after the series connection is connected in the positive pole 410 of power supply, and the negative pole after the series connection is connected in the negative pole 420 of power supply.
Embodiment 2
As shown in Figure 6, the said LED element loop among the embodiment 1 is replaced by following structure:
Said LED element loop comprises power supply;
The blue-ray LED element loop 200 that white light control loop and the blue-light LED chip group that is electrically connected with it constitute;
By N ruddiness control loop and with this N the N that the ruddiness control loop is electrically connected respectively the N that the red LED chip group constitutes red-light LED element loop, wherein N 1, not on the same group the wave band of red LED chip in the said red LED chip group is different.As shown in Figure 6, N red-light LED element loop specifically is the first red LED chip group control loop and the first red LED chip group that is electrically connected with it, the second red LED chip group control loop and second red LED chip group of being electrically connected with it or the like;
By N green glow control loop and with this N the N that the green glow control loop is electrically connected respectively the N that the green light LED chipset constitutes green light LED element loop, wherein N 1, not on the same group the wave band of green light LED chip in the said green light LED chipset is different.As shown in Figure 6, N green light LED element loop specifically is the first green light LED chipset control loop and the first green light LED chipset that is electrically connected with it, the second green light LED chipset control loop and second green light LED chipset of being electrically connected with it or the like.
As shown in Figure 7; Comprise a plurality of red-light LED element loops such as blue-ray LED element loop 200, the first red-light LED element loop 2010, the second red-light LED element loop 2011, the 3rd red-light LED element loop 2012 in the present embodiment, and a plurality of green light LED element loops such as first green light LED element loop 2020, the second green light LED element loop 2021, the 3rd green light LED element loop 2022.Above-mentioned blue-ray LED element loop 200, a plurality of red-light LED element loop and a plurality of green light LED element loop are independent separately, are connected to the both positive and negative polarity of power supply.
Adjustable color temperature of the utility model and the white light LEDs that shows finger; Excite yellow fluorescent powder to produce white light by the blue-light LED chip group; Said blue-light LED chip group is perhaps to be composed in series by the blue-light LED chip of many same wave bands by a blue-light LED chip, and its number is by required brightness decision.The same wave band of blue-light LED chip is meant that in 2.5 nanometer range the concrete subrane of blue chip is: 447.5nm-450nm, 450nm-452.5nm, 452.5nm-455nm, 455nm-457.5nm, 457.5nm-460nm, 460nm-462.5nm.Above-mentioned yellow fluorescent powder accounts for the 7%-15% of glue proportion.Said glue is silica gel or epoxy resin.In general, the white light reference color temperature that excites yellow fluorescent powder to produce by the blue-light LED chip group is 7000k-7500k.
Said red LED chip group is perhaps to be composed in series by the red LED chip of many same wave bands by a red LED chip, and its number is by required brightness decision.The same wave band of red LED chip is meant that in 5 nanometer range the concrete subrane of red light chips is: 610nm-615nm, 615nm-620nm, 620nm-625nm, 625nm-630nm, 630nm-635nm, 635nm-640nm.The first ruddiness control loop refers to the loop of the first red LED chip group and driving power composition thereof, and the second ruddiness control loop refers to the loop of the second red LED chip group and driving power composition thereof, by that analogy.
Said green light LED chipset is perhaps to be composed in series by the green light LED chip of many same wave bands by a green light LED chip, and its number is by required brightness decision.The same wave band of green light LED chip is meant that in 5 nanometer range the concrete subrane of green glow chip is: 510nm-515nm, 515nm-520nm, 520nm-525nm, 525nm-530nm, 530nm-535nm.The first green glow control loop refers to the loop of the first green light LED chipset and driving power composition thereof, and the second green glow control loop refers to the loop of the second green light LED chipset and driving power composition thereof, by that analogy.
Like this; The utility model is provided with the control loop and the led chip group of independent series connection separately of multichannel in the packaging body of white light LEDs; Wherein, One the tunnel is the white light control loop of known and the blue-light LED chip group that is connected in series with it, and blue light is provided, and the yellow light mix of sending after being stimulated with yellow fluorescent powder forms white light; One the tunnel is at least one ruddiness control loop and the red LED chip group that is electrically connected with it, and ruddiness is provided, and changes colour temperature and increases the colour rendering index of LED; Also have one the tunnel to be at least one green glow control loop and the green light LED chipset that is electrically connected with it, green glow is provided, change colour temperature and increased the colour rendering index of LED.In addition; Use the red LED chip of many group different-wavebands and the green light LED chip of many group different-wavebands; Can make its spectrum more abundant, replenish in the spectrum to a certain extent and lack part, more can improve colour rendering index than single wave band red LED chip and single wave band green light LED chip.In addition; White light control loop, ruddiness control loop and green glow control loop are independent separately, but technical staff's dialogue photocontrol loop, ruddiness control loop and green glow control loop are adjusted drive current respectively, thereby reach the purpose of adjustment colour temperature; When hanging down colour temperature; The brightness of red LED chip group and green light LED chipset is expressible higher, if will reduce illumination, only needs each loop current size of adjustment to get final product.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; Can make various variations to the utility model in form with on the details, be the protection domain of the utility model.
Claims (7)
1. the white light LEDs of an adjustable color temperature and apparent finger comprises pedestal, is scattered with the packaging body of yellow fluorescent powder and is located at pedestal and the LED element loop of package interior; It is characterized in that: said LED element loop comprises:
Power supply;
White light control loop and the blue-light LED chip group that is electrically connected with it;
Ruddiness control loop and the red LED chip group that is electrically connected with it;
Green glow control loop and the green light LED chipset that is electrically connected with it;
Said power supply is respectively blue-light LED chip group, red LED chip group and green light LED chipset through white light control loop, ruddiness control loop and green glow control loop drive current is provided;
Said pedestal and blue-light LED chip group, red LED chip group, green light LED chipset electrically connect.
2. adjustable color temperature according to claim 1 and the white light LEDs that shows finger; It is characterized in that: said ruddiness control loop and the red LED chip group that is electrically connected with it be N ruddiness control loop and with the red LED chip group of this N the N that the ruddiness control loop is electrically connected a respectively different-waveband, wherein N 1.
3. adjustable color temperature according to claim 1 and 2 and the white light LEDs that shows finger; It is characterized in that: said green glow control loop and the green light LED chipset that is electrically connected with it be N green glow control loop and with the green light LED chipset of this N the N that the green glow control loop is electrically connected a respectively different-waveband, wherein N 1.
4. adjustable color temperature according to claim 1 and the white light LEDs that shows finger is characterized in that: said blue-light LED chip group is perhaps to be composed in series by the blue-light LED chip of many same wave bands by a blue-light LED chip.
5. adjustable color temperature according to claim 1 and the white light LEDs that shows finger is characterized in that: said red LED chip group is perhaps to be composed in series by the red LED chip of many same wave bands by a red LED chip.
6. adjustable color temperature according to claim 1 and the white light LEDs that shows finger is characterized in that: said green light LED chipset is perhaps to be composed in series by the green light LED chip of many same wave bands by a green light LED chip.
7. adjustable color temperature according to claim 1 and the white light LEDs that shows finger is characterized in that: said packaging body adopts epoxy resin or silica gel transparent material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220175967XU CN202598208U (en) | 2012-04-24 | 2012-04-24 | White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220175967XU CN202598208U (en) | 2012-04-24 | 2012-04-24 | White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index |
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| Publication Number | Publication Date |
|---|---|
| CN202598208U true CN202598208U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220175967XU Expired - Fee Related CN202598208U (en) | 2012-04-24 | 2012-04-24 | White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151344A (en) * | 2013-03-01 | 2013-06-12 | 上海嘉塘电子有限公司 | LED (Light Emitting Diode) high-development white light emitting device for common illumination |
| CN103939779A (en) * | 2014-04-18 | 2014-07-23 | 江苏新广联绿色照明工程有限公司 | LED panel lamp allowing color temperature and color rendering index to be adjustable |
| TWI500885B (en) * | 2013-04-26 | 2015-09-21 | Lextar Electronics Corp | Multifunctional lamp |
| CN105489738A (en) * | 2016-02-16 | 2016-04-13 | 惠州雷曼光电科技有限公司 | White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device |
| CN109461725A (en) * | 2018-11-20 | 2019-03-12 | 惠州市辉采实业有限公司 | Multi color temperature LED light source, lamp and preparation method |
| CN113864670A (en) * | 2021-09-24 | 2021-12-31 | 深圳百炼光特种照明有限公司 | High-color-rendering-index white light source module with variable color temperature |
-
2012
- 2012-04-24 CN CN201220175967XU patent/CN202598208U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151344A (en) * | 2013-03-01 | 2013-06-12 | 上海嘉塘电子有限公司 | LED (Light Emitting Diode) high-development white light emitting device for common illumination |
| TWI500885B (en) * | 2013-04-26 | 2015-09-21 | Lextar Electronics Corp | Multifunctional lamp |
| CN103939779A (en) * | 2014-04-18 | 2014-07-23 | 江苏新广联绿色照明工程有限公司 | LED panel lamp allowing color temperature and color rendering index to be adjustable |
| CN105489738A (en) * | 2016-02-16 | 2016-04-13 | 惠州雷曼光电科技有限公司 | White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device |
| CN105489738B (en) * | 2016-02-16 | 2018-11-30 | 惠州雷曼光电科技有限公司 | Colour temperature is aobvious to refer to adjustable white light LED part, preparation method and regulation method |
| CN109461725A (en) * | 2018-11-20 | 2019-03-12 | 惠州市辉采实业有限公司 | Multi color temperature LED light source, lamp and preparation method |
| CN113864670A (en) * | 2021-09-24 | 2021-12-31 | 深圳百炼光特种照明有限公司 | High-color-rendering-index white light source module with variable color temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index Effective date of registration: 20150923 Granted publication date: 20121212 Pledgee: China Co truction Bank Corp Xiamen branch Pledgor: Xiamen Colorful Optoelectronics Technology Co.,Ltd. Registration number: 2015350000074 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20121212 Termination date: 20190424 |