CN101713508B - Intelligently adjustable-color temperature LED lamp - Google Patents
Intelligently adjustable-color temperature LED lamp Download PDFInfo
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- CN101713508B CN101713508B CN2009102107981A CN200910210798A CN101713508B CN 101713508 B CN101713508 B CN 101713508B CN 2009102107981 A CN2009102107981 A CN 2009102107981A CN 200910210798 A CN200910210798 A CN 200910210798A CN 101713508 B CN101713508 B CN 101713508B
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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
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Abstract
The invention relates to an intelligently adjustable-color temperature LED lamp, which comprises a plurality of LED elements and a driving control module controlling the operation of the LED elements, wherein the plurality of LED elements are white light LED elements with different color temperatures and divided into a plurality of LED element groups according to the color temperature; and the driving control module controls one LED element group to be electrified and emit light or a plurality of the LED element groups to be electrified and emit light synchronously. The lamp also can adopt a remote controller to perform infrared remote control of a driving control circuit to obtain various color temperature modules. Due to structural optimization, the color rendering performance of the lamp is improved, the service life of the lamp is prolonged and the dazzling problem of the lamp is solved.
Description
Technical field
The present invention relates to a kind of LED lighting, particularly a kind of intelligently adjustable-color temperature LED lamp can be applicable to the high-grade room lightings such as lighting of home, office, hospital.
Background technology
The harmful substances such as LED is little because of volume, driving voltage is low and not mercurous have become the emerging light source of energy-saving and environmental protection.Particularly in recent years, along with the raising of LED epitaxial wafer and chip technology, the lifting that the LED luminous efficiency obtains continuing has reached every watt of 100 lumen.Simultaneously, the manufacturing cost of LED also constantly descends, and its range of application from early stage outdoor lighting, expands commercial lighting to, has entered again the general lighting field, makes semiconductor lighting become the development trend of current lighting engineering.
Along with growth in the living standard, people no longer are single light illumination modes to the demand of lighting, but can realize multiple bright shadow joint such as Ceiling light, lamp affixed to the ceiling, Grille lamp, Recessed light, shot-light etc., and can add the decorative lighting effect.In order to reach the adjustable effect of light source color temperature, the commerce such as supermarket, market once adopted the traditional fluorescent lamp of two high and low colour temperatures or electricity-saving lamp jointly to be installed in the Grille lamp lamp bracket, the light of lamp lighting were become just white, and were cold or partially warm to avoid color to cross.
Aspect the LED illumination, method and the corresponding product of regulating the light fixture colour temperature also come out successively.Wherein part producer has proposed the adjustable lighting of colour temperature, common are two kinds: 1. by regulating respectively the brightness of white light LEDs branch road, blue-ray LED branch road and three branch roads of red-light LED branch road, reach and regulate the purpose that LED illuminator colour temperature changes.The shortcoming of this technology is: the spatial color distribution of white light LEDs and blue-ray LED, red-light LED is inhomogeneous, and the chip used InGaN ternary semiconductor material that is based on of white light LEDs and blue-ray LED, and the used chip of red-light LED is based on AlGaInP quaternary semiconductor material, both ageing processes are inconsistent, affected the life-span of light fixture.2. adopt the electric current of slide rheostat adjusting driver output and then regulate the drive current of two groups of high-brightness LED lamp groups, these two groups of high-brightness LED lamp groups are respectively cold white high-brightness white-light LED and yellow high-brightness LED.The shortcoming of this technology is: slide rheostat is mechanical adjustment on the one hand, is easy to damage; On the other hand, adopt yellow led that the colour temperature of cold White LED is turned down, because the spectrum of yellow led is narrow, destroyed the harmony of white light LEDs spectrum, cause the colour rendering of lighting to reduce.
Summary of the invention
In order to overcome defects, the invention provides a kind of intelligently adjustable-color temperature LED lamp, take full advantage of the white light LEDs colour rendering good, the light output attenuatoin is low, but steady operation, and the advantage such as reference color temperature is large adopt to have the low light attenuation white light LED part of different-colour as light source, and X kind (X 〉=2) white light LEDs of the Drive and Control Circuit adjusting different-colour of employing remote controller infrared remote control lighting, make light fixture be N kind (N 〉=3) colour temperature pattern.
To achieve these goals, the technical solution used in the present invention is:
A kind of intelligently adjustable-color temperature LED lamp, comprise a plurality of LED devices and drive control module, described a plurality of LED device comprises the white light LED part of multiple different-colour, and being divided into some LED set of devices according to the difference of colour temperature, described drive control module is used for controlling respectively the duty of described each LED set of devices.
Described drive control module generally includes the LED adjusting control circuit, contains a plurality of colour temperature gauge taps in the described LED adjusting control circuit, and each described colour temperature gauge tap connects one group of described LED set of devices, to control the break-make of LED electric current in this LED set of devices.
Described drive control module can also comprise power circuit and the first microprocessing unit, the first power output end of described power circuit links to each other by the power input of power control switch with described LED adjusting control circuit, the second source output links to each other with the power input of described the first microprocessing unit, the pwm control signal output of described the first microprocessing unit is connected with described power control switch, to control the on off operating mode of this power control switch, the colour temperature control signal output of described the first microprocessing unit links to each other with the signal input part of described LED adjusting control circuit, to control the break-make of each described colour temperature gauge tap.
Described power circuit can comprise the EMI circuit that is provided with two-way output, wherein one the tunnel connects current rectifying and wave filtering circuit, passive PFC circuit and LED constant-current drive circuit successively, another road connects reduction voltage circuit, rectification circuit, filter circuit and mu balanced circuit successively, the output of described LED constant-current drive circuit is the first power output end of described power circuit, the output of described mu balanced circuit is the second source output of described power circuit, and described EMI circuit is the output of described power circuit.
This intelligently adjustable-color temperature LED lamp can also comprise wireless transmitter module and wireless receiving module, described wireless transmitter module comprises for the input unit that receives user instruction, radio transmitter and coordination that described user instruction is launched, control described input unit and be used for the second microprocessing unit of described radio transmitter, described wireless receiving module comprises the wireless receiving circuit that transmits be used to receiving described radio transmitter, the output of described wireless receiving circuit is connected with the signal input part of described the first microprocessing unit, described intelligently adjustable-color temperature LED lamp also is provided with remote controller, and described wireless transmitter module is arranged in the described remote controller.
This intelligently adjustable-color temperature LED lamp also comprises the LED wiring board for installation and described each the LED device of arranging usually; be positioned at the driving control panel that is used for arranging described drive control module of described LED wiring board below, and described LED wiring board and described driving control panel are arranged on wherein lamp outer casing.
Described LED wiring board can be glass-fiber-plate, aluminium base or silicon substrate usually, and is evenly distributed with the multiple LED device of described different-colour.
The preferred low light attenuation LED of described LED device device, the packing forms of described LED device can be direct insertion encapsulation, paster type encapsulation or chip on board encapsulation, described LED device is by forming with the support of reflector, the led chip that scribbles fluorescent material and peripheral colloid.
Described lamp outer casing generally includes outer cover and pedestal, and described outer cover is provided with optical scattering agent layer.
Described LED wiring board and described driving control panel can be installed on the described pedestal, and described driving control panel is between described LED wiring board and described pedestal.
The present invention compares the adjustable lighting of existing colour temperature and has following advantage:
1, regulates the white light LEDs of X kind (X 〉=2) different-colour by Drive and Control Circuit, make the colour temperature of LED lighting present multiple (at least three kinds) pattern, and according to the requirement of environment for use to illuminating effect, by increasing the quantity of LED device colour temperature, reach the quantity that the control way that improves Drive and Control Circuit can significantly increase alternative colour temperature pattern.
2, take full advantage of the advantage of many optical properties aspect of white light LEDs, realize that colour temperature does not also reduce the colour rendering of lighting in the time of adjustable.
3, owing to having adopted remote controller, can control easily " unlatching " of LED lighting and " close " and the colour temperature preference pattern.
4, owing to having adopted low-attenuation white light LED, the decay in 1000 hours of its attenuation characteristic is lower than 5%, has solved the lighting light decay, has prolonged the life-span of lighting.
5, owing to having taked optical analog that the distribution of low-attenuation white light LED device is effectively designed, avoid the glare problem of lighting, guaranteed the uniformly light-emitting of lighting.
6, the first microprocessing unit by being provided with the PWM controller carries out PWM control to the input of LED adjusting control circuit, and the break-make by the control power control switch realizes the adjusting to this output duty cycle, is conducive to improve the control accuracy to the LED luminous intensity.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present invention;
Fig. 2 is the schematic block circuit diagram during with distant control function of the present invention;
Fig. 3 is structural representation of the present invention.
The specific embodiment
Intelligently adjustable-color temperature LED lamp provided by the invention, take full advantage of the white light LEDs colour rendering good, the light output attenuatoin is low, but steady operation, and the advantage such as reference color temperature is large, adopt the white light LED part with different-colour as light source, and be divided into a plurality of white light LED part groups according to colour temperature, respectively each LED set of devices is carried out switching combination control again, utilize mixed light to reach the colour temperature that the user needs.
Fig. 1 is schematic block circuit diagram of the present invention, intelligently adjustable-color temperature LED lamp of the present invention, comprise the drive control module 2 whether LED device 1 and the described LED device of control are lighted, described LED device is the white light LED part with different-colour, and be divided into some LED set of devices according to the difference of colour temperature, described drive control module control that the single group of each described LED set of devices is lighted separately or many groups light simultaneously.
Select white light LED part to consider that mainly it has the following advantages: 1. white light LEDs can be by regulating the white light that the fluorescent material proportioning realizes all colour temperatures in the 2700K-10000K in the encapsulation technology; 2. the light output attenuatoin of white light LEDs is low, but steady operation.
The white light LED part group quantity of different-colour is more, attainable colour temperature pattern is more, be provided with the white light LEDs of X kind (X 〉=2) colour temperature, then light fixture can present N kind (N 〉=3) colour temperature pattern, the various combination mode of the LED of various different-colours can form the different colour temperature pattern of light fixture.The LED kind X of the control way of described drive control module 2 and described white light LED part 1 different-colour adapts, according to the LED electrified light emitting of corresponding one or more different-colours of colour temperature pattern control.
Described drive control module comprises LED adjusting control circuit 21, contains a plurality of colour temperature gauge taps in the described LED adjusting control circuit.Usually, the corresponding one group of described LED set of devices of each described colour temperature gauge tap, described colour temperature gauge tap can be FET, manages such as FET.
Described drive control module also comprises power circuit 22 and the first microprocessing unit 23 (such as single-chip microcomputer), the first power output end A of described power circuit links to each other with the power input of described LED adjusting control circuit, the centre is provided with the power control switch for the control break-make, this switch is electronic switch, can adopt FET etc.The second source output B of described power circuit links to each other with the power input of described the first microprocessing unit, the first signal output C of described the first microprocessing unit links to each other with the control signal input of power control switch, controls the input of described LED adjusting control circuit in the PWM mode.The secondary signal output D of described the first microprocessing unit links to each other with the color temperature signal input of described LED adjusting control circuit, to control the break-make of each described colour temperature gauge tap, thereby indirectly control the break-make of electric current of the LED device of flowing through, make the LED electrified light emitting of a certain or several different-colours wherein, form corresponding colour temperature pattern.
Described power circuit has one tunnel input, two-way output, and its input is provided with EMI (electromagnetic interference) circuit 221, and the input of described EMI circuit consists of the electrical network incoming end of described power circuit, usually can connect the alternating current 220V civil power.One tunnel output of described EMI circuit 221 is electrically connected current rectifying and wave filtering circuit 222, passive PFC (PFC) circuit 223 and LED constant-current drive circuit 224 successively, and the output of described LED constant-current drive circuit is the first power output end of described power circuit.Another road output of described EMI circuit is connected to mu balanced circuit through step-down, rectification, filter circuit successively, and the output of described mu balanced circuit is the second source output (can referring to Fig. 2) of described power circuit.
The effect of described LED constant-current drive circuit is to utilize constant-current driving LED, and wherein the large I of constant-current source electric current by PWM control, is carried out light modulation by the first microprocessing unit 23 in the 0-100% duty cycle range.
Wherein, the effect of EMI circuit is the various interfering signals that filtering is come in by electrical network, prevents from that high frequency that power switch circuit forms from disturbing to alter electrical network; The effect of passive PFC circuit is circuit of power factor correction, helps to promote the conversion efficiency of power supply.
In order to realize far distance controlled, and make control operation simple, convenient, intelligently adjustable-color temperature LED lamp of the present invention can also arrange wireless transmitter module 3 and wireless receiving module 4, as shown in Figure 2, described wireless transmitter module comprises the input unit 31 (such as button) that receives user instruction, the radio transmitter 32 that described user instruction is launched and the second microprocessing unit 33 of coordinating the described input unit of control and described radio transmitter, described wireless receiving module comprises the wireless receiving circuit 41 that transmits be used to receiving described radio transmitter, the output of described wireless receiving circuit is connected with the signal input part of described the first microprocessing unit 23, the signal that described the first microprocessing unit 23 receives from described wireless receiving circuit.Described the first microprocessing unit 23 can place in the described wireless receiving module.This intelligently adjustable-color temperature LED lamp also is provided with remote controller, and described wireless transmitter module is arranged in the described remote controller.
Wherein, wireless transmitter module 3 is that the content that input unit 31 (such as button) is inputted (is user instruction, " the colour temperature pattern " that comprises " unlatching ", " closing " and selection) be modulated in the frequency of 38K behind the coding, launch through infrared-emitting diode.Wireless receiving module 4 is to decode the press key contents that input unit 31 places receive after the infrared signal that wireless transmitter module launches is received, the first microprocessing unit (such as single-chip microcomputer) is carried out corresponding operation according to the content of button, comprise the size by the constant current output electric current of described first signal output control LED constant-current drive circuit 224, and realize the colour temperature model selection by described secondary signal output control LED adjusting control circuit 21.
As shown in Figure 3, intelligently adjustable-color temperature LED lamp of the present invention also comprises the LED wiring board 5 of the described LED device of arranging, be positioned at described LED wiring board below be used for the driving control panel 6 of described drive control module is set, and the lamp outer casing 7 that covers in described LED wiring board and described driving control panel periphery.For adopting remote control mode to realize the adjustable situation of colour temperature, wireless receiving module also can be arranged on the described driving control panel.
The shape of described lamp outer casing 7 can design according to LED lamp affixed to the ceiling, LED fluorescent lamp, the different requirement of LED Ceiling light.Described remote controller realizes the function of light fixture " unlatching ", " cutting out " and N kind (N 〉=3) colour temperature model selection by described the second microprocessing unit.Described LED device 1 is arranged in the design phase by optical analog on described LED wiring board 5, therefore guaranteed best output effect.
Described LED wiring board 5 can adopt glass-fiber-plate, aluminium base or silicon substrate, and described aluminium base or silicon substrate can be customized to high radiating circuit plate with reflector according to the COB encapsulation technology.
Described LED device 1 preferred low light attenuation LED device, the packing forms of described LED device can be direct insertion encapsulation, paster type encapsulation or chip on board (COB) encapsulation, the light decay characteristic be 1000 hours light decays less than 5%, hot spot is distributed as lambert's type.Described LED device is by forming with the support of reflector, the led chip that scribbles fluorescent material and peripheral colloid.
Described lamp outer casing comprises outer cover 71 and pedestal 72, and described outer cover is added with the optical scattering agent, makes the light fixture Integral luminous even.
Described LED wiring board is installed on the described pedestal, and described driving control panel is installed between described LED wiring board and the described pedestal.
The design procedure of intelligently adjustable-color temperature LED lamp of the present invention is:
The structural design of at first carrying out lamp outer casing according to purposes and the outward appearance of LED lighting is tentatively confirmed the spacing between LED lamp (LED device) and the lamp outer casing, and then confirms the parameters such as colour temperature, lighting angle of low-attenuation white light LED.Then carry out optical analog according to aforementioned definite structure, the white light LEDs of different-colour is effectively arranged at the LED wiring board, to realize all even uniform-illuminations of colour mixture.Then, according to the design of LED wiring board, design driven control panel and remote controller.At last LED wiring board, driving control panel effectively are electrically connected, cooperate the lamp outer casing through aesthetics design, safe design, namely form the colour temperature adjustable type LED lighting of fashion, intelligence.
Below be two specific embodiments of the present invention.
Embodiment 1:
Referring to Fig. 3, adopt the high brightness chip of wafer, wide gallium or other producers, be 110～120 ° such as 2310 chip package lighting angles, colour temperature is respectively 2700-4000K, respectively 72 of the straw hat type low-attenuation white light LEDs two of 7000-10000K, single white light LEDs luminous flux all is higher than 61m.Described white light is arranged on the round LED wiring board through optical analog emulation, and LED wiring board diameter is about 20cm, is 5～10mm apart from the lamp housing spacing.Described LED wiring board is installed on the circular housing pedestal, exists certain space to be used for placing between LED wiring board and the pedestal and drives control panel.Drive and comprise the wireless receiving module that receives the remote controller input signal on the control panel.
The light distribution of described LED lighting outgoing evenly and light extraction efficiency be higher than 85%, be respectively 3 kinds of patterns of 2700-4000K, 4000-7000K, 7000-10000K by remote controller intelligence adjustable color temperature, wherein 4000-7000K can be used as the key lighting pattern of room lighting.The alternative traditional lamp affixed to the ceiling of this LED lighting becomes the LED lamp affixed to the ceiling of colour temperature adjustable type.
Embodiment 2:
Adopt aluminium base to make the LED wiring board, the feature of described LED wiring board is to be distributed with 144 reflectors on the aluminium base, the reflector shape adopt structure and optics Software for Design can realize the LED lighting angle be 110～120 ° to obtain better illuminating effect.Set up warm white LEDs branch road and cold white LEDs branch road on the described LED wiring board separately.The brightness blue light led chip of same producer described aluminium base employing COB encapsulation technology is solid, and apply yellow fluorescent powder at the chip of 72 reflectors of cold white LEDs branch road, make the white light that sends be the cold white of high color temperature, apply warm white fluorescent material on the chip of warm 72 reflectors of white LEDs branch road, make the white light that sends be low color warm white.Described LED wiring board is installed on the circular housing pedestal, exists certain space to be used for placing between LED wiring board and the pedestal and drives control panel.Be provided with drive control module and the wireless receiving module that comprises power circuit and LED adjusting control circuit on this driving control panel.
The light of described LED lighting outgoing have warm in vain, just white, cold white three kinds of adjustable modes, its light intensity and Illumination Distribution are even, alternative traditional lamp affixed to the ceiling becomes the LED lighting of colour temperature adjustable type.
Claims (7)
1. intelligently adjustable-color temperature LED lamp, comprise a plurality of LED devices and drive control module, it is characterized in that described a plurality of LED device comprises the white light LED part of multiple different-colour, and be divided into some LED set of devices according to the difference of colour temperature, described drive control module is used for controlling respectively the duty of described each LED set of devices, described drive control module comprises the LED adjusting control circuit, contain a plurality of colour temperature gauge taps in the described LED adjusting control circuit, each described colour temperature gauge tap connects one group of described LED set of devices, to control the break-make of LED electric current in this LED set of devices, described drive control module also comprises power circuit and the first microprocessing unit, the first power output end of described power circuit links to each other by the power input of power control switch with described LED adjusting control circuit, the second source output links to each other with the power input of described the first microprocessing unit, the pwm control signal output of described the first microprocessing unit is connected with described power control switch, to control the on off operating mode of this power control switch, by the adjusting of output duty cycle being improved the control accuracy to the LED luminous intensity, the colour temperature control signal output of described the first microprocessing unit links to each other with the signal input part of described LED adjusting control circuit, to control the break-make of each described colour temperature gauge tap, LED electrified light emitting according to corresponding one or more different-colours of colour temperature pattern control, described power circuit comprises the EMI circuit that is provided with two-way output, wherein one the tunnel connects current rectifying and wave filtering circuit successively, passive PFC circuit and LED constant-current drive circuit, another road connects reduction voltage circuit successively, rectification circuit, filter circuit and mu balanced circuit, the output of described LED constant-current drive circuit is the first power output end of described power circuit, the output of described mu balanced circuit is the second source output of described power circuit, and described EMI circuit is the output of described power circuit.
2. intelligently adjustable-color temperature LED lamp according to claim 1, characterized by further comprising wireless transmitter module and wireless receiving module, described wireless transmitter module comprises for the input unit that receives user instruction, radio transmitter and coordination that described user instruction is launched, control described input unit and be used for the second microprocessing unit of described radio transmitter, described wireless receiving module comprises the wireless receiving circuit that transmits be used to receiving described radio transmitter, the output of described wireless receiving circuit is connected with the signal input part of described the first microprocessing unit, described intelligently adjustable-color temperature LED lamp also is provided with remote controller, and described wireless transmitter module is arranged in the described remote controller.
3. the described intelligently adjustable-color temperature LED lamp of arbitrary claim according to claim 1-2, characterized by further comprising the LED wiring board for installation and described each the LED device of arranging, be positioned at the driving control panel that is used for arranging described drive control module of described LED wiring board below, and described LED wiring board and described driving control panel are arranged on wherein lamp outer casing.
4. intelligently adjustable-color temperature LED lamp according to claim 3 is characterized in that described LED wiring board is glass-fiber-plate, aluminium base or silicon substrate, and is evenly distributed with the multiple LED device of described different-colour.
5. intelligently adjustable-color temperature LED lamp according to claim 4, it is characterized in that described LED device adopts low light attenuation LED device, the packing forms of described LED device is direct insertion encapsulation, paster type encapsulation or chip on board encapsulation, and described LED device is by forming with the support of reflector, the led chip that scribbles fluorescent material and peripheral colloid.
6. intelligently adjustable-color temperature LED lamp according to claim 5 is characterized in that described lamp outer casing comprises outer cover and pedestal, and described outer cover is provided with optical scattering agent layer.
7. intelligently adjustable-color temperature LED lamp according to claim 6 is characterized in that described LED wiring board and described driving control panel are installed on the described pedestal, and described driving control panel is between described LED wiring board and described pedestal.
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| CN2009102107981A CN101713508B (en) | 2009-11-10 | 2009-11-10 | Intelligently adjustable-color temperature LED lamp |
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| CN101309010A (en) * | 2007-05-15 | 2008-11-19 | 张亦翔 | Power factor compensator having LED lighting lamp |
| CN101427067A (en) * | 2006-06-28 | 2009-05-06 | 首尔半导体株式会社 | Artificial solar light system using a light emitting diode |
| CN201310775Y (en) * | 2008-09-24 | 2009-09-16 | 比亚迪股份有限公司 | LED illuminating system capable of adjusting color temperature |
-
2009
- 2009-11-10 CN CN2009102107981A patent/CN101713508B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2730076Y (en) * | 2004-09-01 | 2005-09-28 | 张嵩松 | Line control light regulator for fluorescent lamp |
| CN101427067A (en) * | 2006-06-28 | 2009-05-06 | 首尔半导体株式会社 | Artificial solar light system using a light emitting diode |
| CN101427067B (en) * | 2006-06-28 | 2010-12-15 | 首尔半导体株式会社 | Artificial solar light system using a light emitting diode |
| CN101309010A (en) * | 2007-05-15 | 2008-11-19 | 张亦翔 | Power factor compensator having LED lighting lamp |
| CN201310775Y (en) * | 2008-09-24 | 2009-09-16 | 比亚迪股份有限公司 | LED illuminating system capable of adjusting color temperature |
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| Publication number | Publication date |
|---|---|
| CN101713508A (en) | 2010-05-26 |
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