CN201935004U - White-light LED (light-emitting diode) planar light source module with adjustable color temperature - Google Patents
White-light LED (light-emitting diode) planar light source module with adjustable color temperature Download PDFInfo
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- CN201935004U CN201935004U CN2011200236270U CN201120023627U CN201935004U CN 201935004 U CN201935004 U CN 201935004U CN 2011200236270 U CN2011200236270 U CN 2011200236270U CN 201120023627 U CN201120023627 U CN 201120023627U CN 201935004 U CN201935004 U CN 201935004U
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Abstract
The utility model relates to the technical field of the LED illumination, in particular to a white-light LED planar light source module with adjustable color temperature, which is characterized in that, a light-reflecting layer, an LED light source module and a light-guiding and -diffusing layer are sequentially arranged from bottom to top on the circuit substrate; in the LED light source module, LED light source module units with low color temperature and LED light source modules with high color temperature are sequentially arranged at intervals in a staggered way, and the LED light source module is connected with a driving circuit control unit; and the driving circuit control unit is provided with a current-adjusting device. Compared with the prior art, the color white-light LED planar light source module provided by the utility model has the advantages that the color temperature can be continuously adjusted from low color temperature to high color temperature; the intensity of the light is adjustable, the illumination makes a user comfortable, and the light source module is energy-saving and environment-friendly and is flexible in use; and meanwhile, by adopting the planar encapsulating technology, the light source is thin and light, the emitted light is uniform and gentle, and the light source modules are easily produced on a large scale at low cost.
Description
Technical field
The utility model relates to the LED lighting technical field, is a kind of white light LED plane light source module of adjustable color temperature specifically.
Background technology
The traditional lighting light source is mainly based on incandescent lamp and gas-discharge lamp.Incandescent lamp comprises Halogen lamp LED, and luminous promptly, warm light is main, and is comparatively comfortable during illumination with low colour temperature, change by electric current and can regulate luminous intensity, but low because of its luminous efficiency, power consumption is bigger, will progressively be eliminated.Gas-discharge lamp comprises that the luminous efficiency of fluorescent lamp, sodium vapor lamp, mercury lamp etc. is higher, drives because of need high pressure and high-frequency electric field when luminous, and luminous intensity is difficult for regulating, and can cause environmental pollution because of mercurous noxious material simultaneously, and its application also can be restricted.The colour temperature of fluorescent lamp can be regulated the light source that can obtain different-colour by the proportioning of fluorescent material.In case the characteristics of these conventional light source structures are light source manufacturings, its colour temperature is then fixed, colour temperature that can't the dynamic adjustments light source when luminous.
Along with improving constantly of semiconductor light-emitting-diode LED luminous efficiency and power, LED uses and has entered into lighting field from the demonstration field.Application at lighting field is then taken as the leading factor with white-light illuminating.The method that LED produces white light mainly contains three classes: 1, adopt RGB RGB three-color LED chip light emitting mixed light to obtain white light; 2, adopt blue-light LED chip coating gold-tinted or red-green glow fluorescent material, fluorescent material is excited and obtains white light with part blue light mixed light; 3, adopt ultraviolet leds chip coating white light RGB fluorescent material, fluorescent material is obtained white light by ultraviolet excitation.Wherein first method can obtain the light source of different colours or colour temperature by the light intensity of controlling the RGB chip respectively, because of adopting at least three kinds of (RGB) chips, a kind of white light source comes mixed light, cost is higher, and this class light source is only limited to the special lighting field and uses except that showing the field extensive use.And the third method is lower and cost is higher because of ultraviolet LED chip light emitting efficient at present, and technology is very unripe, remains to be further developed.Second method is because of blue-light LED chip and light-emitting phosphor efficient is higher and cost is lower, has developed into the major technique that white LED light source is made.In the manufacturing of this type of white light source, mainly by the characteristic decision of fluorescent material, the colour temperature by the composition that changes fluorescent material can be regulated white light source promptly changes to high colour temperature from low colour temperature the colour temperature of light source.In practical devices is made, the corresponding class light source of a kind of fluorescent material, the colour temperature of promptly packaged good light source is fixed, can't be when illumination the variation of dynamic adjustments light source color temperature.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, adopts cheaply and applies fluorescent material on the blue-light LED chip, and control colour temperature and luminous intensity by the drive circuit control module.
For achieving the above object, design a kind of white light LED plane light source module of adjustable color temperature, comprise: circuit substrate, reflector layer, heat-sink shell, led light source module, divider wall, fluorescence coating, leaded light diffusion layer, drive circuit control module is characterized in that: circuit substrate is provided with reflector layer, led light source module, leaded light diffusion layer from bottom to up successively; Described led light source module is arranged for low colour temperature led light source modular unit and high colour temperature led light source modular unit interleaved successively and is formed, the galvanic positive electrode that connects one road output of drive circuit control module after the positive electrode parallel connection of each low colour temperature led light source modular unit input, the galvanic negative electrode of one road output of connection drive circuit control module after the negative electrode parallel connection of each low colour temperature led light source modular unit input; The galvanic positive electrode that connects another road output of drive circuit control module after the positive electrode parallel connection of each high colour temperature led light source modular unit input, the galvanic negative electrode of another road output of connection drive circuit control module after the negative electrode parallel connection of each high colour temperature led light source modular unit input; The drive circuit control module is provided with regulating current device.
Be provided with divider wall between described low colour temperature led light source modular unit and the high colour temperature led light source modular unit.
Described low colour temperature led light source modular unit is that the outside coats low colour temperature fluorescence coating again after establishing the blue led chip on the heat-sink shell, and described low colour temperature fluorescence coating is to be made up of the mixture of low colour temperature fluorescent material of 2500-3500K and transparent silica gel.
Described high colour temperature led light source modular unit is that the outside coats high colour temperature fluorescence coating again after establishing the blue led chip on the heat-sink shell, and described high colour temperature fluorescence coating is to be made up of the mixture of high colour temperature fluorescent material of 5500-7500K and transparent silica gel.
Described circuit substrate adopts aluminium alloy or copper alloy circuit substrate.
Thickness≤the 2mm of described leaded light diffusion layer, it adopts transparent silica gel, or adopts the astigmatic particulate of mixing content＜2%wt in silica gel to constitute the leaded light diffusion layer.
Described regulating current device is to establish adjustable resistance respectively on one road output of drive circuit control module and another road output.
Described regulating current device also is provided with temperature sensor.
The utility model is compared with prior art, and colour temperature can be adjustable continuously to high reference color temperature from low colour temperature, and light intensity is adjustable, comfortable, the energy-conserving and environment-protective of throwing light on, applying flexible; Adopt the planar package technology to make light source thin and light, luminous evenly soft simultaneously, and be easy to the low-coat scale manufacturing.
Description of drawings
Fig. 1 is a sectional side view of the present utility model.
Fig. 2 is a circuit connection diagram in the utility model.
The specific embodiment
Now the utility model is further described in conjunction with the accompanying drawings.
The utility model is to establish reflector layer 2, led light source module, leaded light diffusion layer 7 formations on circuit substrate 1 from bottom to up successively, and is controlled by 9 pairs of light source modules of drive circuit control module.
One, board design manufacturing:
Circuit substrate 1 adopts the aluminium alloy or the copper alloy circuit substrate of high heat conduction, scribble the reflector layer 2 of high reflectance on circuit substrate 1 surface, these reflector layer 2 wavelength be 400～800 nanometer range, average reflectance more than 90%, establish led light source module, leaded light diffusion layer 7 on the reflector layer 2 more successively; Low color temperature light sources modular unit 81 is arranged with high colour temperature led light source modular unit 82 interleaved successively.
Described low colour temperature led light source modular unit 81 is that the outside coats low colour temperature fluorescence coating 61 again after establishing the blue led chip on the heat-sink shell 3; Described low colour temperature fluorescence coating is to be made up of the mixture of low colour temperature fluorescent material of 2500-3500K and transparent silica gel.
Described high colour temperature led light source modular unit 82 is to establish outside, blue led chip 4 back to coat high colour temperature fluorescence coating 62 again on heat-sink shell 3, and described high colour temperature fluorescence coating is to be made up of the mixture of high colour temperature fluorescent material of 5500-7500K and transparent silica gel.
And by 9 pairs of low colour temperature led light source modular units 81 of drive circuit control module and the independent respectively control of high colour temperature led light source modular unit 82, be to be connected with the positive electrode of the DC current of drive circuit control module 9 outputs after the positive electrode parallel connection between the led module of same colour temperature, the negative electrode of the DC current of exporting with drive circuit control module 9 after the negative electrode parallel connection between the led module of same colour temperature is connected, one road output 91 of drive circuit control module 9 and the size of current of another road output 92 can be regulated, and can control the luminous intensity of low colour temperature led light source modular unit 81 and high colour temperature led light source modular unit 82 respectively.
Two, led light source module manufacturing process:
Adopt planar package technology to carry out the led module manufacturing, blue-light LED chip 4 adopts solid brilliant, bonding wire craft to be fixed on the circuit substrate 1, and the heat-sink shell of 2 the high heat conduction of employing in blue-light LED chip 4 and reflecting layer 3 is bonding to be beneficial to blue-light LED chip 4 heat conduction; Adopt gluing process between modular unit, to form divider wall 5, oven dry; Low colour temperature fluorescence coating 61 and high colour temperature fluorescence coating 62 covering around the corresponding blue-light LED chip separately, oven dry forms the led light source module, and wherein low colour temperature fluorescence coating 61 all is no more than 2mm with high colour temperature fluorescence coating 62 thickness.
Cover leaded light diffusion layer 7 again on the led light source module, described leaded light diffusion layer adopts transparent silica gel, or adopts and mix content＜2%wt astigmatism particulate constitute in silica gel, and described astigmatic particulate is SiO
2Or Al
2O
3Or TiO
2Or ZnO or SnO
2Or AlN or BN or fluorescent particle etc., the thickness of leaded light diffusion layer 7 is no more than 2mm, because of leaded light diffusion layer 7 has adopted leaded light astigmatism structure, makes the luminous evenly soft of light source.
Three, drive circuit control module control principle
Change the size of DC current on one road output 91 and another road output 92 respectively by drive circuit control module 9, control the luminous intensity of the led chip 4 in low colour temperature led light source modular unit 81 and high colour temperature led light source modular unit 82 zones respectively, the light of two kinds of colour temperatures can be mixed and obtain the light of required colour temperature.
Drive circuit control module 9 is respectively by one road output 91 and another road output 92 output two-way DC currents, the big I of two-way DC current is regulated between the maximum operating currenbt of led module 0, as adopt the high colour temperature led light source modular unit 82 of 7500K, DC current on another road output 92 is 0 o'clock at this moment, adopt the low colour temperature led light source modular unit 81 of 2500K simultaneously, the DC current of output is for regulating on one road output 91, like this, high colour temperature led light source modular unit 82 is not luminous, have only low colour temperature led light source modular unit 81 luminous, just can obtain the white light of low colour temperature, the size of its light intensity changes with the variation of the direct current size of one road output 91; Otherwise then can obtain the white light of high colour temperature.
If the low colour temperature led light source modular unit 81 of control is opened simultaneously with the electric current of high colour temperature led light source modular unit 82, direct current according to output on one road output 91 is different with the direct current ratio of another road output 92 outputs, corresponding low colour temperature led light source modular unit 81 is also different with the luminous intensity of high colour temperature led light source modular unit 82, then can obtain any colour temperature between low colour temperature and high colour temperature.
Drive the control mode of the two-way DC current size of low colour temperature led light source modular unit 81 of input and high colour temperature led light source modular unit 82, can adopt manual adjustments control, also can adopt intelligent automatic control.Manually control can be established an adjustable resistor respectively with another road output 92 places at one road output 91 of circuit drives unit 9 and be regulated; Intelligent automatic control, even the colour temperature of led light source module changes with variation of temperature, can in drive circuit control module 9, establish temperature sensor, control the output current of one road output 91 and another road output 92 by temperature sensor feedback temperature signal, as when environment temperature is higher, the electric current that temperature sensor feeds back signal to one road output 91 of drive circuit control module 9 feasible low colour temperature led light source modular units 81 reduces, the electric current that connects another road output 92 of high colour temperature led light source modular unit 82 increases, and light source luminescent is based on the cold light illumination of high colour temperature like this.Otherwise, when temperature is low then based on the warm optical illumination of low colour temperature.
Claims (8)
1. the white light LED plane light source module of an adjustable color temperature, comprise: circuit substrate, reflector layer, heat-sink shell, led light source module, divider wall, fluorescence coating, leaded light diffusion layer, drive circuit control module is characterized in that: circuit substrate (1) is provided with reflector layer (2), led light source module, leaded light diffusion layer (7) from bottom to up successively; Described led light source module forms for low colour temperature led light source modular unit (81) and high colour temperature led light source modular unit (82) interleaved arrangement successively, the galvanic positive electrode that connects one road output (91) of drive circuit control module (9) after the positive electrode parallel connection of each low colour temperature led light source modular unit (81) input, the galvanic negative electrode of one road output (91) of connection drive circuit control module (9) after the negative electrode parallel connection of each low colour temperature led light source modular unit (81) input; The galvanic positive electrode that connects another road output (92) of drive circuit control module (9) after the positive electrode parallel connection of each high colour temperature led light source modular unit (82) input, the galvanic negative electrode of another road output (92) of connection drive circuit control module (9) after the negative electrode parallel connection of each high colour temperature led light source modular unit (82) input; Drive circuit control module (9) is provided with regulating current device.
2. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1 is characterized in that: be provided with divider wall (5) between described low colour temperature led light source modular unit and the high colour temperature led light source modular unit.
3. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1 or 2, it is characterized in that: described low colour temperature led light source modular unit (81) is to establish outside, blue led chip (4) back to coat low colour temperature fluorescence coating (61) again on heat-sink shell (3), and described low colour temperature fluorescence coating is to be made up of the mixture of low colour temperature fluorescent material of 2500-3500K and transparent silica gel.
4. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1 or 2, it is characterized in that: described high colour temperature led light source modular unit (82) is to establish outside, blue led chip (4) back to coat high colour temperature fluorescence coating (62) again on heat-sink shell (3), and described high colour temperature fluorescence coating is to be made up of the mixture of high colour temperature fluorescent material of 5500-7500K and transparent silica gel.
5. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1 is characterized in that: described circuit substrate (1) employing aluminium alloy or copper alloy circuit substrate.
6. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1, it is characterized in that: the thickness≤2mm of described leaded light diffusion layer (7), it adopts transparent silica gel, or adopts the astigmatic particulate of mixing content＜2%wt in silica gel to constitute leaded light diffusion layer (7).
7. the white light LED plane light source module of a kind of adjustable color temperature as claimed in claim 1 is characterized in that: described regulating current device is for establishing adjustable resistance respectively on one road output (91) of drive circuit control module (9) and another road output (92).
8. as the white light LED plane light source module of claim 1 or 7 described a kind of adjustable color temperatures, it is characterized in that: described regulating current device also is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200236270U CN201935004U (en) | 2011-01-25 | 2011-01-25 | White-light LED (light-emitting diode) planar light source module with adjustable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200236270U CN201935004U (en) | 2011-01-25 | 2011-01-25 | White-light LED (light-emitting diode) planar light source module with adjustable color temperature |
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| Publication Number | Publication Date |
|---|---|
| CN201935004U true CN201935004U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200236270U Expired - Lifetime CN201935004U (en) | 2011-01-25 | 2011-01-25 | White-light LED (light-emitting diode) planar light source module with adjustable color temperature |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709450A (en) * | 2012-03-16 | 2012-10-03 | 上舜照明（中国）有限公司 | Dimmable COB (chip on board) light source module |
| CN102720967A (en) * | 2012-06-08 | 2012-10-10 | 佛山市中昊光电科技有限公司 | Color-temperature-adjustable high-color-rendering light source module |
| CN103337495A (en) * | 2013-06-26 | 2013-10-02 | 晋城市环球利特光电技术有限公司 | Color temperature adjustable white-light LED |
| CN105222072A (en) * | 2014-10-24 | 2016-01-06 | 成都世纪光合作用科技有限公司 | Long-range high-power Dimmable lighting device |
| CN106195722A (en) * | 2015-05-05 | 2016-12-07 | 扬州艾笛森光电有限公司 | The light emitting diode illuminating apparatus of alternating current power supply be can be used directly |
| CN106989290A (en) * | 2017-05-17 | 2017-07-28 | 东莞创视自动化科技有限公司 | A kind of high uniformity light source and its colour temperature and brightness adjusting method |
| CN108591947A (en) * | 2018-05-08 | 2018-09-28 | 横店集团得邦照明股份有限公司 | A kind of adjustable color Projecting Lamp and its implementation |
-
2011
- 2011-01-25 CN CN2011200236270U patent/CN201935004U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709450A (en) * | 2012-03-16 | 2012-10-03 | 上舜照明（中国）有限公司 | Dimmable COB (chip on board) light source module |
| CN102720967A (en) * | 2012-06-08 | 2012-10-10 | 佛山市中昊光电科技有限公司 | Color-temperature-adjustable high-color-rendering light source module |
| CN103337495A (en) * | 2013-06-26 | 2013-10-02 | 晋城市环球利特光电技术有限公司 | Color temperature adjustable white-light LED |
| CN105222072A (en) * | 2014-10-24 | 2016-01-06 | 成都世纪光合作用科技有限公司 | Long-range high-power Dimmable lighting device |
| CN106195722A (en) * | 2015-05-05 | 2016-12-07 | 扬州艾笛森光电有限公司 | The light emitting diode illuminating apparatus of alternating current power supply be can be used directly |
| CN106989290A (en) * | 2017-05-17 | 2017-07-28 | 东莞创视自动化科技有限公司 | A kind of high uniformity light source and its colour temperature and brightness adjusting method |
| CN108591947A (en) * | 2018-05-08 | 2018-09-28 | 横店集团得邦照明股份有限公司 | A kind of adjustable color Projecting Lamp and its implementation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |