CN2817285Y

CN2817285Y - LED full color display light

Info

Publication number: CN2817285Y
Application number: CNU2005201039166U
Authority: CN
Inventors: 李维强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-17
Filing date: 2005-08-17
Publication date: 2006-09-13
Anticipated expiration: 2015-08-17

Abstract

The utility model discloses a LED full-color display lamp, which mainly utilizes a potentiometer of a control circuit to change the current of three LED luminous bodies of red, green and blue, so as to mix the light of full-color colors through the three LEDs of red, green and blue, the color change of the LED is according to the value of each potentiometer, so as to achieve the continuous brightness change, and any color light source mixed by the three LEDs can be completely displayed on the translucent lampshade of the lamp holder body, and the lamp holder body comprises an LED gathering lamp part for displaying the lamp holder body parts of various colors; in addition, the control circuit can be arranged inside or outside the lamp holder body.

Description

The full-color display lamp of LED

Technical field

The utility model relates to the full-color display lamp of a kind of LED, is meant a kind of electric current that utilizes potentiometer to change three kinds of LED luminous elements of red, green, blue especially, with the full-color display lamp of LED that carries out full-color color mixed light by three kinds of color LED of red, green, blue.

Background technology

General present lampion on the market, can only produce seven kinds of change color, its variation has: red, green, blue, (red+green), (green+indigo plant), (blue+red), (red+green+indigo plant), it mainly is to utilize the counter principle to export 3 groups of ON-OFF signals, seven kinds of colors so can only change, and can't make the brightness change; Because LED has semi-conductive physical characteristic, be difficult to adjust brightness and change with voltage control mode, generally all be that the mode with constant-current source drives, owing to be the cause of constant current, its brightness is for fixing nonadjustable.

So there is the dealer to develop a kind of color lamp of the LED of adjustment brightness, as No. 89127119 patent in Taiwan, it utilizes microcomputerized control, anaiog signal is converted to the digital signal on 256 rank, drive pulse wave width modulation device (P.W.M), allow LED produce desultory conducting, the characteristics of utilizing human eye vision to persist again, can sense the variation of brightness, reach the variable color purpose; This kind mode can produce the situation that flicker is beated when brightness dims, because exceed 1/16 second scope of the persistence of vision, therefore be difficult to make full-color effect; In addition, No. 93102287 patent in Taiwan, it equally also is by pulse wave width modulation device (P.W.M), and only changes the brightness of two groups of LED, therefore also is difficult to make the variation of complete colour.

And, aforementioned two patents all are to be purpose with the illumination, so must make light source with tens of LEDs groups, because at present the efficient of the efficient of LED and tungsten lamp is suitable, energy resource consumption about 80% is all arranged on heat, so when using with LED group, need possess huge radiator, so its cost and volume are not that institutes such as general family can bear, its practicality is not good.

The utility model content

The purpose of this utility model promptly is to provide a kind of full-color display lamp of LED that shows the shades of colour light source, makes LED brightness can present linear change, and light-source brightness can secretly, smooth-going entirely certainly transfer to the brightest.

The utility model time purpose is to provide a kind of adjustment by potentiometer, make by the electric current of LED and make linear size variation, after change is finished, its electric current promptly reverts to constant-current source and immobilizes, therefore brightness is also with regard to stable presenting, and along with each the different brightness of red, green, blue color chip, make it on the translucent lampshade of lamp socket body, present consistent color, and utilize optical principle, only need to adjust trichromatic each brightness, and, can produce the full-color display lamp of the LED of shades of colour light source on translucent lampshade by human optic nerve.

Another purpose of the utility model is to provide a kind of simple and easy control, low cost and the full-color display lamp of obvious results LED, it is popularized uses in general family and suitable place of business use, when first Transparent lamp shade of lamp socket body presents the shades of colour special-effect, can effectively increase effects such as internal ambience, sentiment and adjustment mood, and also can work as reading lamp and mini light night and use.

The full-color display lamp of LED of above-mentioned utility model purpose be can realize, a lamp socket body and a control circuit included; At least be assembled with the LED of three kinds of colors of red, green, blue in this lamp socket body, the LED of three kinds of colors of this red, green, blue is controlled the control of circuit respectively; This control circuit is made of a power supply changeover device, filter, pressurizer, potentiometer, constant-current source and flow restricter; In a kind of control circuit of enforcement, power supply changeover device one end is communicated with AC power, another output is connected to filter, filter output is connected to pressurizer, pressurizer is established three outputs, is connected to three potentiometers respectively, and three potentiometer outputs are connected to three constant-current sources respectively, the output of three constant-current sources is connected to three flow restricters respectively, and the output of three flow restricters is connected to the led chip of three kinds of colors of red, green, blue of LED luminous element lamp body respectively; Described potentiometer is a variable resistor, its with the lamp socket body on or outer adjustment push button or adjust knob and be connected, with by adjusting push button or adjusting knob and carry out the current potential adjustment of potentiometer

In the embodiment of another kind of control circuit, power supply changeover device connects AC power, and its output is connected to filter, and filter output is connected to pressurizer, and output end of voltage stabilizer is connected to potentiometer; Described potentiometer is made up of synchronous toggle switch and three groups of resistance groups of a pair of three, this toggle switch input is situated between mutually with pressurizer and connects, and output connects three groups of resistance groups, wherein every group of resistance group all is made up of the resistance of several different resistances, three groups of resistance groups' output is connected to three constant-current sources respectively, the output of three constant-current sources is connected to three flow restricters respectively, and the output of three flow restricters is connected to the red, green, blue color chip of LED luminous element respectively; In the described potentiometer on a pair of three synchronous toggle switch and the lamp socket body or the outer section knob of dialling be connected, to carry out the output potential adjustment of potentiometer by dialling a section knob.

This control circuit changes the electric current of three kinds of LED luminous elements of red, green, blue by the variation of a pair of three synchronous toggle switch on potentiometer or the potentiometer, the brightness of three kinds of color led chips of red, green, blue is changed, to produce versicolor light source.

The control circuit of technique scheme, convert AC power to DC power supply by power supply changeover device, and this power supply inputed in the filter, after filter is with power filter, again voltage source is inputed in the pressurizer, this pressurizer can use the stable output of voltage for each potentiometer, can adjust different voltage levels by a pair of three synchronous toggle switch on each potentiometer or the potentiometer, and make the voltage of being exported through each corresponding constant-current source and flow restricter, export to again on the LED luminous element, to control the red of LED luminous element, green, the light-source brightness of blue chip, thereby reach full-color mixed light effect, promptly form the full-color display lamp of this part LED; With optical principle, by adjusting indivedual brightness of Red Green Blue, can utilize human optic nerve to produce the full color light source, when giving out the shades of colour light time by the translucent lampshade of lamp socket body, many effects such as internal ambience, sentiment and adjustment mood be can effectively increase, and reading lamp and mini light night use can be used as.

Description of drawings

See also the detailed description and the accompanying drawing thereof of following relevant the utility model one preferred embodiment, can further understand technology contents of the present utility model and purpose effect thereof.Relevant this embodiment accompanying drawing is:

Fig. 1 is the three-dimensional view of the full-color display lamp of the utility model LED;

Fig. 2 is the control circuit calcspar of the full-color display lamp of the utility model LED;

Fig. 3 is the enforcement schematic diagram of the full-color display lamp of the utility model LED;

Fig. 4 is that the light source of the full-color display lamp of the utility model LED is concentrated schematic diagram;

Fig. 5 is another enforcement schematic diagram of the full-color display lamp of the utility model LED;

Fig. 6 is the another enforcement schematic diagram of the full-color display lamp of the utility model LED;

Fig. 7 is another control circuit calcspar of the full-color display lamp of the utility model LED;

Fig. 8 is group the section knob and the coaxial interlock toggle switch schematic diagram of another enforcement rotating potentiometer of the full-color display lamp of the utility model LED;

Fig. 9 is another enforcement schematic perspective view of the full-color display lamp of the utility model LED; And

Figure 10 is the another enforcement schematic perspective view of the full-color display lamp of the utility model LED.

Symbol implication among the figure: 1, the lamp socket body; 10, lampshade; 11, power supply changeover device; 12, filter; 13, pressurizer; 14, potentiometer; 21, potentiometer; 22, constant-current source; 23, flow restricter; 31, potentiometer; 32, constant-current source; 33, flow restricter; 41, potentiometer; 42, constant-current source; 43, flow restricter; 5, LED electroluminescent lamp group; 51, red chip; 52, green chip; 53, blue chip; 6, adjust push button; 7, the guide light reflection cup; 71, convex lens; 8, adjust knob; 9, dial the section knob.

Embodiment

See also Figure 1 and Figure 2, be the full-color display lamp of the utility model LED, mainly include:

One lamp socket body 1, this lamp socket body comprises a lampshade 10, this lampshade 10 is a translucent glass lamp shade or is made by other translucent material, and be provided with in lamp socket body 1 and adjust push button 6, and assembling one LED electroluminescent lamp group 5 in the lamp socket body 1, this LED electroluminescent lamp group 5 includes led

chip

51,52,53 (referring to Fig. 2) or three kinds of led chips that color is above of three kinds of colors of red, green, blue; And a control circuit 100, this control circuit 100 includes:

One power supply changeover device 11 can receive interchange (AC) power supply, and converts AC power to direct current (DC) power supply, and the DC power supply that converts exports filter 12 again to;

One filter 12 receives the DC power supply that power supply changeover device 11 is exported, and with DC power supply after Filtering Processing, ripple (Ripple) interference sections of generation is suppressed, again DC power supply is exported to pressurizer 13 after finishing;

One pressurizer 13, the DC power supply that receiving filter 12 is exported can be with the voltage voltage stabilizing to accurate stable demand voltage, and burning voltage is exported to respectively in three

potentiometers

21,31,41 simultaneously;

Three

potentiometers

21,31,41, it is a variable resistor, can receive the burning voltage that pressurizer 13 is exported, after burning voltage is adjusted via variable resistor, exportable various precisely stable demand voltage, and respectively three potentiometers, 21,31,41 demand voltages that produced are exported in three constant-current sources to 22,32,42; And these three

potentiometers

21,31,41 are connected the light-source brightness of red, green,

blue color chip

51,52,53 that can be by adjusting push button 6 control LED luminous elements 5 respectively with adjustment push button 6 on the lamp socket body 1;

Three constant-

current sources

22,32,42 receive three potentiometers, 21,31,41 voltages of being exported respectively, and convert accurate burning voltage to constant current, utilize I _L=(V-V _BE)/R _LDesign, R wherein _LBe the fixedly internal resistance of LED, V _BEBe transistorized forward bias voltage drop, be all the value of immobilizing, V is burning voltage accurately, therefore, when potentiometer is exported various accurate burning voltage to constant-current source, can make constant-current source along with the change of accurate burning voltage, and make the output of various constant currents, and respectively three constant-current sources, 22,32,42 constant currents that produced be exported in three

flow restricters

23,33,43;

Three flow restricters 23,33,43; receive three constant-current sources, 22,32,42 constant currents of being exported respectively; surpass rated maximum by flow restricter prevent from the to flow through electric current of LED; with as stable protection usefulness, again drive current is exported to the red, green,

blue color chip

51,52,53 of LED luminous element 5 at last respectively.

As shown in Figures 3 and 4, be enforcement schematic diagram of the present utility model, when desiring to carry out LED electroluminescent lamp group mixed light, the operator only need use the adjustment push button 6 on the lamp socket body 1, carry out three

potentiometers

21,31,41 current potential adjustment, be the red of may command LED electroluminescent lamp group 5, green,

blue chip

51,52,53 light-source brightness, at this moment, utilize human optic nerve induction, can produce the shades of colour light source, make lamp socket body 1 translucent lampshade 10 can demonstrate full-color mixed light effect, when utilizing translucent lampshade 10 to demonstrate the shades of colour light source, can effectively increase internal ambience, many effects (as shown in Figure 3) such as sentiment and adjustment mood, when brightness is turned down, be a mini light night, after the user also can be adjusted to high-brightness white-light with light source colour, the guide light reflection cup 7 that will have convex lens 71 again is inserted in translucent lampshade 10, light source can be concentrated on the convex lens 71, these convex lens 71 promptly can converge light source more, can effectively increase its brightness, when being applied to the bedside lamp use, because the cause that light is concentrated, also do not influence other people sleep, make it equally can be with the effect (as shown in Figure 4) of reading lamp.

Please consult simultaneously more shown in Figure 5, be the utility model another implement schematic diagram, wherein this accent pushes away the pattern of whole button, also can be to adjust knob 8 or other adjusts the button pattern, it has the effect of adjusting

potentiometer

21,31,41 output potentials equally.

Please consult shown in Figure 6ly again, be the another enforcement schematic diagram of the utility model, wherein, aforementioned control circuit 100 (Fig. 2) can be external in outside the lamp socket body 1 with adjusting push button 6 or adjust knob 8 (Fig. 5), to increase the overall aesthetics of lamp socket body 1.

See also Fig. 7 to shown in Figure 9, another circuit block diagram for the full-color display lamp of the utility model LED, by among the figure as can be known, the full-color display lamp of this LED, can make the easier operation of consumer, only adopt one to dial section knob 9 (Fig. 9), three kinds of color LED of the intrinsic red, green, blue of lamp socket can be carried out mixed light, to obtain the light source of various colors, it mainly includes:

One lamp socket body 1, this lamp socket body comprises a lampshade 10, this lampshade 10 is a translucent glass lampshade or is made by other translucent material, and be provided with one in lamp socket body 1 and dial a section knob 9, and assembling one LED electroluminescent lamp group 5 in the lamp socket body 1, this LED electroluminescent lamp group 5 includes three kinds of color led chips of red, green, blue 51,52,52 or three kind of led chip that color is above; And

One control circuit 100, this control circuit 100 comprises (Fig. 7):

One pressurizer 13, the DC power supply that receiving filter 12 is exported can be with the voltage voltage stabilizing to accurate stable demand voltage, and burning voltage is exported in the potentiometer 14;

One potentiometer 14, see Fig. 8 for details, the synchronous toggle switch 141 by a pair of three and the first resistance group 142, the

second resistance group

143 and 144 compositions of the 3rd resistance group, the input of this toggle switch 141 is situated between mutually with pressurizer 13 and connects, output then with the first resistance group 142, the second resistance group 143 and the 3rd resistance group 144 are connected, wherein, every group of resistance group 142,143,144 all comprise several resistance R 1, R2, R3, .. reach Rn, and every group of resistance group 142,143,144 resistance R 1, R2, R3, .. the resistance that reaches Rn is neither identical, make burning voltage flow through first, second and third resistance group 142,143, behind 144 the resistance, with exportable various precisely stable demand voltages, and the demand voltage that respectively a potentiometer 14 is produced exports three constant-current sources 22 to, 32, in 42;

Three constant-

current sources

22,32,42 receive the voltage that a potentiometer 14 is exported respectively, and convert accurate burning voltage to constant current, utilize I _L=(V-V _BE)/R _LDesign, R wherein _LBe the fixedly internal resistance of LED, V _BEBe transistorized forward bias voltage drop, be all and immobilize, V is burning voltage accurately, therefore, when potentiometer is exported various accurate burning voltage to constant-current source, can make constant-current source along with the change of accurate burning voltage, and make the output of various constant currents, and respectively three constant-current sources, 22,32,42 constant currents that produced be exported in three

flow restricters

23,33,43;

Three flow restricters 23,33,43, receive three constant-current sources, 22,32,42 constant currents of being exported respectively, prevent that by flow restricter the flow through electric current of LED of power supply from surpassing rated maximum, with as stable protection usefulness, again drive current is exported to the red, green,

blue color chip

51,52,53 of LED luminous element 5 at last respectively;

As shown in Figure 9, by forming of above-mentioned each member, make the user only need rotate section knob 9 of dialling on the lamp socket body 1, and it is corresponding with the color sign on the lamp socket body 1, cause LED lamp group can produce the required full-color colour light source of user (red, orange, yellow, green, blue, indigo, purple, white or other shades of colour light source), see through the most easy operation, make lamp socket body 1 equally with effects such as create atmosphere, adjustment mood and reading lamp, mini light nights.

In addition, see also shown in Figure 10, this control circuit 100 with dial a section knob 9 and can be external in outside the lamp socket body 1, to increase lamp socket body 1 integral aesthetic property.

The full-color display lamp of LED provided by the utility model, with other located by prior art mutually than, have more following advantage:

1. utilize the design in an adjustable constant-flow source, and be applied to the control mode of LED lamp, can make LED brightness present linear variation, allow light-source brightness accomplish smooth-going light modulation, can be from full shadow to the brightest.

2. the utility model is to provide a kind of adjustment that sees through potentiometer, make and do linear size of current variation, after change was finished, its electric current promptly reverted to constant-current source and immobilizes, so brightness is also with regard to stable presenting, and along with each the different brightness of red, green, blue color chip, make it on lamp socket body lampshade, can present consistent color, and utilize optical principle, only need to adjust trichromatic indivedual brightness, by the mankind's optic nerve, can produce the purpose of various full-color colour light sources.

3. the utility model is to provide a kind of simple and easy control, low cost and obvious results mode, it is popularized uses in general family and suitable place of business use, to reach the effect that increases internal ambience, sentiment and adjust mood, the utility model also can be worked as the full-color display lamp of LED that reading lamp and mini light night use.

4. the utility model is to provide a kind of guide light reflection glass holder that will have convex lens to go in the lamp socket body, just all light sources can be concentrated on the convex lens, these convex lens can converge light source more, significantly increase the brightness of light source, when being applied to the bedside lamp use, because light is concentrated the cause of a bit, other people's sleep will can not be influenced, make its effect, also brightness can be dimmed simultaneously, be used as the usefulness of mini light night with reading lamp.

Above-listed detailed description is specifying at a possible embodiments of the present utility model, this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence for it of the utility model skill spirit institute and implement or change, all should be contained among the application.

Claims

1. A LED full-color display lamp, comprising a lamp holder body and a control circuit, characterized in that:

The lamp holder body has a lampshade on it, and an LED light-emitting lamp group is assembled therein, and the LED light-emitting lamp group at least includes LED chips of three colors: red, green and blue;

The control circuit includes a power converter, a filter, a voltage stabilizer, three potentiometers, three constant current sources and three current limiters; wherein, one end of the power converter is connected to an AC power source, and the other The output terminal is connected to the filter, and the output terminal of the filter is connected to the voltage regulator. The voltage regulator has three output terminals, which are respectively connected to three potentiometers. The output terminals of each constant current source are respectively connected to three current limiters, and the output terminals of the three current limiters are respectively connected to the red, green and blue LED chips of the LED light body; the control circuit passes the potential The device changes the current of the red, green, and blue LED illuminants, so that the brightness of the red, green, and blue LED chips changes accordingly to produce light sources of various colors.

2. The LED full-color display lamp according to claim 1, wherein the constant current source utilizes the design of I _L =(VV _BE )/ _RL , wherein R _L is the fixed internal resistance of the LED, V _BE is the forward bias voltage of the transistor, which is a fixed value, and V is a precise and stable voltage.

3. The LED full-color display lamp according to claim 1, wherein the potentiometer is a variable resistor, which is connected with an adjustment push button or an adjustment knob on or outside the lamp holder body, so as to pass Adjust the push button or adjust the knob to adjust the potential of the potentiometer.

4. The LED full-color display lamp according to claim 1, wherein the lampshade is a translucent glass lampshade or made of other translucent materials, and a light guide with a convex lens can be inserted on the lampshade The reflective cup is used to concentrate the light source of the lamp holder body through the convex lens.

5. The LED full-color display lamp according to claim 1, wherein the LED light-emitting lamp group comprises LED light-emitting chips of four colors or more than four colors.

6. An LED full-color display lamp, comprising a lamp holder body and a control circuit, characterized in that:

The lamp holder body is combined with a lampshade, and an LED light-emitting lamp group is assembled in it, and the LED light-emitting lamp group at least includes LED chips of three colors: red, green and blue;

The control circuit includes a power converter, a filter, a voltage stabilizer, a potentiometer, three constant current sources and three current limiters; wherein, the power converter is connected to an AC power supply, and its output terminal is connected to To the filter, the output end of the filter is connected to the voltage stabilizer, and the output end of the voltage stabilizer is connected to the potentiometer; the potentiometer is composed of a one-to-three synchronous dial switch and three groups of resistance groups, and the dial switch input The terminal is connected with the voltage stabilizer, and the output terminal is connected to three groups of resistors, each of which is composed of several resistors with different resistance values, and the output terminals of the three groups of resistors are respectively connected to three constant current sources. , the output terminals of the three constant current sources are respectively connected to the three current limiters, and the output terminals of the three current limiters are respectively connected to the red, green and blue chips of the LED luminous body; The currents of the red, green, and blue LED illuminants change the brightness of the red, green, and blue LED chips to produce light sources of various colors.

7. The LED full-color display lamp according to claim 6, wherein the constant current source utilizes the design of I _L =(VV _BE )/ _RL , wherein R _L is the fixed internal resistance of the LED, V _BE is the forward bias voltage of the transistor, all of which are fixed, and V is a precise and stable voltage.

8. The LED full-color display lamp according to claim 6, wherein the one-to-three synchronous dial switch in the potentiometer is connected with the dial knob on or outside the lamp holder body, so as to pass through the dial The knob is used to adjust the output potential of the potentiometer.

9. The LED full-color display lamp according to claim 6, wherein the lampshade can be a translucent glass lampshade or other translucent material, and a light-guiding reflection cup with a convex lens is placed on the lampshade, The light source of the lamp holder body is concentrated through the convex lens.

10. The LED full-color display lamp according to claim 1, wherein the LED light-emitting lamp group comprises LED light-emitting chips of four colors or more than four colors.