CN102510624A - Energy storage LED (light-emitting diode) light source - Google Patents
Energy storage LED (light-emitting diode) light source Download PDFInfo
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- CN102510624A CN102510624A CN2011103404291A CN201110340429A CN102510624A CN 102510624 A CN102510624 A CN 102510624A CN 2011103404291 A CN2011103404291 A CN 2011103404291A CN 201110340429 A CN201110340429 A CN 201110340429A CN 102510624 A CN102510624 A CN 102510624A
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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 energy storage LED (light-emitting diode) light source, which consists of an LED light source (4) and an energy storage circuit B which are connected in parallel, wherein the energy storage circuit B consists of a current limit resistor R and a capacitor C which are connected in series, one end of the current limit resistor of the energy storage circuit is connected with a power supply anode of an LED unit (6), and one end of the capacitor C is connected with a power supply cathode of the LED unit (6) to form an annular circuit formed by connecting the current limit resistor R and the capacitor C connected in series and at least one LED unit (6). When a light is turned on, I+ passes through the LED light source (4) for lighting, and simultaneously the forward current charges the capacitor C through the current limit resistor R; and after the light is turned off or power is cut, electric energy stored by the capacitor C is automatically discharged, and the forward current provides electric energy to the LED unit (6) through the current limit resistor R to make the LED unit shine so as to achieve the purpose that after the light is turned off or the power is cut, the LED unit can still shine, keep certain brightness and light for a period of time.
Description
Technical field
The present invention relates to lighting source technology and passage sign field, be fit to be applied to the emergent sign lighting source of room lighting light source, corridor lighting sign and passway for escaping.
Background technology
In existing technology, traditional illuminating lamp is that environment is exactly as dark as a stack of black cats after turning off the light, and the people is difficult to adapt at short notice.The present invention utilizes LED (light-emitting diode) as illumination component, because the conducting voltage of LED is low, electric current is little; Utilize this characteristic, can adopt the function of electric capacity charge and discharge, turn off the light the back with or have a power failure after; By electric capacity back-up source is provided; Make that lamp is unlikely to extinguish, but the light of having a surplus is also illuminating environment, lamp is slowly extinguishing at once.Utilize this characteristic, the present invention can be widely used in the sign of room lighting, corridor and emergency escape passage.
Summary of the invention
The objective of the invention is to: propose the energy storage led light source that a kind of power failure also can be luminous.
Energy storage led light source of the present invention; For solving after turning off the light or having a power failure, the light fixture problem of a period of time that also can continue to throw light on, energy storage led light source of the present invention; It is the functional characteristic that utilizes the electric capacity charge and discharge; When turning on light use, when+V threw light on through led light source, electric current charged to capacitor C through diode D; Turn off the light the back or have a power failure after, capacitor C is discharged automatically, it provides electric energy and makes it luminous to led light source through current-limiting resistance R, thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.
Energy storage led light source of the present invention; By the parallelly connected formation of led light source (4) with accumulator B; Its accumulator B is connected with capacitor C by current-limiting resistance R and constitutes, and the current-limiting resistance one of accumulator B is terminated between the positive pole of negative pole and LED unit (6) of LED unit (5), and capacitor C one is terminated at the negative pole of LED unit (6) or the negative pole of power supply; Formation one is by current-limiting resistance R, capacitor C series connection and be no less than the loop circuit that 1 LED unit (6) connects and composes; Led light source (4) constitutes by being no less than 1 LED unit (5) and being no less than 1 LED unit (6) series connection, and said LED unit (5) is made up of many 1 LED, and said LED unit (6) is made up of many 1 LED.When using when turning on light, when I+ threw light on through led light source (4), forward current charged to capacitor C through current-limiting resistance R; After turning off the light or having a power failure, the electric energy that capacitor C stores discharges automatically, and forward current provides electric energy and makes it luminous to LED unit (6) through current-limiting resistance R; Thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.For the bigger voltage of acquisition, electric current are charged to capacitor C, preferred accumulator B establishes a diode D and current-limiting resistance R is connected in parallel, and the forward current of diode D is terminated at LED unit (5) negative pole one end, and the reverse current of diode D is terminated at capacitor C.
Energy storage led light source of the present invention; Its energy storage led light source is by the parallelly connected formation with accumulator B of led light source (4); Its led light source (4) can be constituted by one or more led light sources unit (5), (6), and led light source unit (5), (6) can be constituted by one or more LED respectively.
Energy storage led light source of the present invention; Preferred led light source is made up of LED1, LED2, the series connection of LED3 three parts; Be provided with capacitor energy storage circuit in its led light source; Capacitor energy storage circuit is connected with capacitor C and is constituted by diode D, current-limiting resistance R parallel connection, and diode D forward current is terminated between LED1, the LED2, constitutes the loop circuit of LED2, LED3 and a diode D, capacitor C; One of current-limiting resistance R is terminated between LED2, the LED3, constitutes the loop circuit of a LED3 and current-limiting resistance R, capacitor C.When using when turning on light ,+V is through LED1, LED2, when LED3 throws light on, and forward current charges to capacitor C through LED1, diode D; After turning off the light or having a power failure, the electric energy that capacitor C stores discharges automatically, and forward current provides electric energy and makes it luminous to LED3 through current-limiting resistance R; Thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.At this moment, because diode D is in the reverse current state, electric current is ended, and to LED1, LED2 electric energy is not provided.
Energy storage led light source of the present invention, the LED1 of its led light source, LED2, LED3 are made up of one or more LED lamps respectively.
Energy storage LED illuminating lamp of the present invention, said capacitor can be selected capacitor or the super capacitor or the capacitor batteries of the high power capacity of prior art for use.
Energy storage led light source of the present invention can adopt the manufacturing approach of prior art to produce; All parts; All can on market, buy acquisition or adopt prior art to accomplish; Energy storage LED illuminating lamp assembling of the present invention all can adopt prior art to accomplish.
The present invention's beneficial effect compared with prior art: owing to adopted such scheme, the present invention compared with prior art: the one owing to be designed with accumulator, make illuminating lamp when turning off the light, be unlikely to make life, operational environment to be deceived entirely once; The 2nd, the energy source circuit of deposit is not consume public energy source, and the present invention meets the requirement of energy-saving and emission-reduction.
Description of drawings
To the present invention is described further, but execution mode of the present invention is not limited thereto below in conjunction with the accompanying drawing instance.
Fig. 1, energy storage led light source circuit diagram
Fig. 2, energy storage led light source preferred circuit figure one
Fig. 3, energy storage led light source preferred circuit figure two
One of Fig. 4, energy storage led light source circuit connecting line map (1 method that connects that LED lamp pearl is bright)
One of Fig. 5, energy storage led light source circuit connecting line map (2 methods that connect that LED lamp pearl is bright)
One of Fig. 6, energy storage led light source circuit connecting line map (the bright method that connects of 1 string LED lamp pearl)
One of Fig. 7, energy storage led light source circuit connecting line map (the bright method that connects of 2 string LED lamp pearls)
Fig. 8, energy storage LED illuminating lamp way circuit figure
The lighting sketch map that Fig. 9, energy storage led light source are used
Among the figure: lamp housing (1), lampshade (2), energy storage led light source (3), led light source (4), led light source unit (5), (6), drive circuit A,, accumulator B, rectifier diode D, resistance R, storage capacitor C, energy storage led light source circuit E.
Embodiment
Shown in Fig. 1-7, energy storage led light source of the present invention is by the parallelly connected formation with accumulator B of led light source (4); Its accumulator B is connected with capacitor C by current-limiting resistance R and constitutes; The current-limiting resistance one of accumulator is terminated at LED unit (6) positive source, and capacitor C one is terminated at the negative pole of LED unit (6) power cathode and power supply, and formation one is by current-limiting resistance R, capacitor C series connection and be no less than the loop circuit that 1 LED unit (6) connects and composes; Led light source (4) constitutes by being no less than 1 LED unit (5) and being no less than 1 LED unit (6) series connection; Said LED unit (5) is made up of many 1 LED, and said LED unit (6) is made up of many 1 LED, when using when turning on light; When I+ threw light on through led light source (4), forward current charged to capacitor C through current-limiting resistance R; After turning off the light or having a power failure, the electric energy that capacitor C stores discharges automatically, and forward current provides electric energy and makes it luminous to LED unit (6) through current-limiting resistance R; Thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.
As shown in Figure 2, illustrate as follows: its energy storage led light source preferred circuit, the LED1 of led light source (4), LED2, LED3 are constituted with high bright light-emitting diode (english abbreviation is LED) by 12 0.3W illuminations respectively; Diode D is the rectifier diode of 1N4001, and current-limiting resistance R is 22 Ω, the resistance of 1/4W; Storage capacitor C is 0.1F, and the capacitor of 5.5V high power capacity, drive circuit A are YD-E2707; Experiment selected rectangle light fixture, lamp housing, lampshade adopt prior art to accomplish.
Like Fig. 2, shown in 9; The illuminating lamp of energy storage led light source of the present invention constitutes the tubulose strip light by lamp housing, lampshade, led light source, drive circuit A, and its led light source is made up of LED1, LED2, the series connection of LED3 three parts; Be provided with capacitor energy storage circuit in its led light source; Capacitor energy storage circuit is made up of parallel diode D, current-limiting resistance R series capacitance C, and diode D positive terminal is connected between LED1, the LED2, constitutes the loop circuit of LED2, LED3 and a diode D, capacitor C; One of current-limiting resistance R is terminated between LED2, the LED3, constitutes the loop circuit of a LED3 and current-limiting resistance R, capacitor C.When using when turning on light, V+ is through LED1, LED2, when LED3 throws light on, and forward current charges to capacitor C through LED1, diode D; After turning off the light or having a power failure, the electric energy that capacitor C stores discharges automatically, and forward current provides electric energy and makes it luminous to LED3 through current-limiting resistance R; Thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.At this moment, because diode D is in the reverse current state, electric current is ended, and to LED1, LED2 electric energy is not provided.
All parts of the illuminating lamp of energy storage led light source of the present invention; All can on market, buy acquisition or adopt prior art to accomplish; Energy storage LED illuminating lamp assembling of the present invention all can adopt prior art to accomplish.
Energy storage led light source of the present invention, can realize that division is following through multiple different connected mode:
Like Fig. 2-4, shown in Figure 6, one of energy storage led light source circuit connecting, the concrete connection described in detail as follows:
Power supply V+ supplies with the required work energy of LED1--LED3 by the V+ end output current of driving power.The positive pole of LED 1 is connected to V+, and the negative pole of LED 1 is connected to the positive pole of LED 2, and the negative pole of LED 2 is connected to the positive pole of LED 3, and the negative pole of LED 3 is connected to V-.The positive pole of rectifier diode D is connected to negative pole and the LED2 positive pole of LED1; The negative pole of rectifier diode D is connected to the positive pole of capacitor and the end of current-limiting resistance R; It is anodal that the other end of current-limiting resistance R is connected to negative pole and the LED3 of LED2, and the negative pole of capacitor C is connected to V-(hold).Electric current flows to negative pole from the positive pole of LED1, and simultaneously, current pathway diode D, current-limiting resistance R charge to capacitor C, accomplishes to the capacitor C charging process.To be electric current flow out via the positive pole of capacitor C discharge process, flows to the negative pole of LED3 through the positive pole of current-limiting resistance R, LED3, flows into the negative pole of capacitor C, accomplishes discharge process and light LED 3 simultaneously.
Like Fig. 1,5, shown in Figure 7, one of energy storage led light source circuit connecting, the concrete connection described in detail as follows:
Power supply V+ supplies with light emitting diode LED (5), (6) required work energy by the V+ end output current of driving power.The positive pole of light emitting diode LED (5) is connected to V+, and the negative pole of light emitting diode LED (5) is connected to the positive pole of light emitting diode LED (5), and this is the tandem-type connection of a plurality of light emitting diode LED (5), (6).The negative pole of a plurality of light emitting diode LED (5) or (6) is connected to V-; One of current-limiting resistance R is terminated at the positive pole of light emitting diode LED (6), the negative pole of (5); The other end of current-limiting resistance R is connected to the positive pole of capacitor C, and the negative pole of capacitor C is connected to V-(hold).Electric current flows to negative pole from the positive pole of light emitting diode LED (6), and R charges to capacitor C via current-limiting resistance, accomplishes to the capacitor C charging process.To be electric current flow out via the positive pole of capacitor C discharge process, flows to the negative pole of light emitting diode LED (6) through the positive pole of current-limiting resistance R, light emitting diode LED (6), flows into the negative pole of capacitor C, accomplishes discharge process and light LED (6) simultaneously.
As shown in Figure 8, energy storage LED illuminating lamp way circuit figure, concrete principle is summarized as follows:
The A of Fig. 8 is a PWM (pulse-width modulation) switching power circuit, and AC power changes direct current into via the rectifier bridge heap, and PWM modulation chip U1 produces a high-frequency square-wave signal; Act on metal-oxide-semiconductor; Metal-oxide-semiconductor is connected in high frequency transformer, and high frequency transformer is under the effect of the connecting and disconnecting of metal-oxide-semiconductor, and the auxiliary winding of high frequency transformer is just exported required magnitude of voltage; Draw DC power supply V+ through rectifier diode; The positive pole of energy storage led light source is connected to V+, and the negative pole of energy storage led light source is connected to V-(hold), forms complete current circuit and lights the energy storage led light source.
In the such scheme, described lamp body can be a ball bubble shape lamp, can be the tubulose strip light, can be the PAR30/PAR38 lamp, can be Down lamp, can be ceiling light, and said accumulator becomes one with lamp body.
The objective of the invention is to: propose the energy storage LED illuminating lamp that a kind of power failure also can be luminous.For solving after turning off the light or having a power failure, the light fixture problem of a period of time that also can continue to throw light on, energy storage LED illuminating lamp of the present invention is to utilize the functional characteristic of electric capacity charge and discharge to realize.Under the normal operating condition ,+V charges to capacitor C through LED1 (light-emitting diode), diode D, turns off the light after back or the power failure, and power supply is provided electric energy and makes it luminous to LED3 (light-emitting diode) through current-limiting resistance R by capacitor C.Energy storage LED illuminating lamp of the present invention is constituted by lamp body, lamp plate, LED (light-emitting diode), lampshade, for after realizing turning off the light or having a power failure; Still continue luminous; Keep certain brightness, the purpose of illumination a period of time, the circuit of LED illuminating lamp is the circuit that is designed with as the electric capacity charge and discharge of reserve power; Because capacitor possesses storage and discharges the functional characteristic of electric energy; Use time+V to charge to capacitor C through LED1 (light-emitting diode), diode D when turning on light, after turning off the light or having a power failure, power supply is provided electric energy and makes it luminous to LED3 (light-emitting diode) through current-limiting resistance R by capacitor C; Thereby realize turning off the light the back or have a power failure after, still continue luminously, keep certain brightness, the purpose of illumination a period of time.Energy storage LED illuminating lamp of the present invention, said capacitor can select for use the capacitor of the high power capacity of prior art to accomplish.In the such scheme, described lamp body can be a ball bubble shape lamp, can be the tubulose strip light, can be the PAR30/PAR38 lamp, can be Down lamp, can be ceiling light, and said accumulator becomes one with lamp body.Energy storage LED illuminating lamp of the present invention can adopt the manufacturing approach of prior art to produce.Owing to adopted such scheme, the present invention compared with prior art: the one owing to be designed with accumulator, make illuminating lamp when turning off the light, be unlikely to make life, operational environment to be deceived entirely once; The 2nd, the energy source circuit of deposit is not consume public energy source, and the present invention meets the requirement of energy-saving and emission-reduction.As shown in Figure 1, energy storage LED illuminating lamp of the present invention is supplied power to the power supply of whole lamp by+V, and it is normally luminous to make that LED1, LED2, LED3 are able to, and power supply to storage capacitor C charging, is accomplished the process of charging to storage capacitor via LED1 and rectifier diode D simultaneously.Turn off the light or when having a power failure, feeder ear+V does not have supply of electrical energy, discharge electric energy by storage capacitor C this moment, and discharge process is via storage capacitor C, resistance R, LED3 discharge and light LED3.When sending a telegram here once more, above-mentioned charge and discharge process capable of circulation, thereby realize turning off the light with or can not cause when having a power failure living, the incompatibility situation of operational environment moment blackening.Obtain the parts of energy storage light emitting LED lamp; Parts energy storage light emitting LED lamp is and the power supply one design and assembly that wait body, promptly obtains energy storage LED illuminating lamp of the present invention.The manufacturing of all parts, assembling all can adopt prior art to accomplish.
Claims (2)
1. energy storage led light source; It is characterized in that: by the parallelly connected formation with accumulator B of led light source (4), its accumulator B is connected with capacitor C by current-limiting resistance R and constitutes, and the current-limiting resistance one of accumulator B is terminated between the positive pole of negative pole and LED unit (6) of LED unit (5); Capacitor C one is terminated at the negative pole of LED unit (6); Formation one is by current-limiting resistance R, capacitor C series connection and be no less than the loop circuit that 1 LED unit (6) connects and composes, and its led light source (4) constitutes by being no less than 1 LED unit (5) and being no less than 1 LED unit (6) series connection, and said LED unit (5) is made up of many 1 LED; Said LED unit (6) is made up of many 1 LED; When using when turning on light, when I+ threw light on through led light source (4), forward current charged to capacitor C through current-limiting resistance R; After turning off the light or having a power failure, the electric energy that capacitor C stores discharges automatically, and forward current provides electric energy and makes it luminous to LED unit (6) through current-limiting resistance R, thus realize turning off the light the back or have a power failure after, still continue luminous, the purpose of a period of time of throwing light on.
2. energy storage led light source according to claim 1; It is characterized in that: said accumulator B is provided with a diode D and current-limiting resistance R is connected in parallel; The forward current of diode D is terminated at LED unit (5) negative pole one end, and the reverse current of diode D is terminated at capacitor C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103404291A CN102510624A (en) | 2011-10-30 | 2011-10-30 | Energy storage LED (light-emitting diode) light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103404291A CN102510624A (en) | 2011-10-30 | 2011-10-30 | Energy storage LED (light-emitting diode) light source |
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| CN102510624A true CN102510624A (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103404291A Pending CN102510624A (en) | 2011-10-30 | 2011-10-30 | Energy storage LED (light-emitting diode) light source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769956A (en) * | 2012-06-29 | 2012-11-07 | 艾维新能源科技南京有限公司 | High-power factor filtering circuit |
| CN102869151A (en) * | 2012-08-24 | 2013-01-09 | 广西桂林宇川光电科技有限公司 | Light emitting diode (LED) light having slow dimming effect |
| CN110446312A (en) * | 2019-06-25 | 2019-11-12 | 杭州艾芯智能科技有限公司 | A kind of circuit design method about raising light source performance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121805Y (en) * | 2007-12-03 | 2008-09-24 | 左进保 | Capacitor electric power accumulation torch |
| CN201382353Y (en) * | 2009-04-01 | 2010-01-13 | 三门峡仪电有限责任公司 | Capacitance LED emergency lighting lamp unit |
| CN201393319Y (en) * | 2009-05-04 | 2010-01-27 | 谢东升 | LED noctilucent energy-saving lamp circuit |
| JP2011090970A (en) * | 2009-10-23 | 2011-05-06 | Le Dac Inc | Led emergency lighting device |
-
2011
- 2011-10-30 CN CN2011103404291A patent/CN102510624A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121805Y (en) * | 2007-12-03 | 2008-09-24 | 左进保 | Capacitor electric power accumulation torch |
| CN201382353Y (en) * | 2009-04-01 | 2010-01-13 | 三门峡仪电有限责任公司 | Capacitance LED emergency lighting lamp unit |
| CN201393319Y (en) * | 2009-05-04 | 2010-01-27 | 谢东升 | LED noctilucent energy-saving lamp circuit |
| JP2011090970A (en) * | 2009-10-23 | 2011-05-06 | Le Dac Inc | Led emergency lighting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769956A (en) * | 2012-06-29 | 2012-11-07 | 艾维新能源科技南京有限公司 | High-power factor filtering circuit |
| CN102869151A (en) * | 2012-08-24 | 2013-01-09 | 广西桂林宇川光电科技有限公司 | Light emitting diode (LED) light having slow dimming effect |
| CN110446312A (en) * | 2019-06-25 | 2019-11-12 | 杭州艾芯智能科技有限公司 | A kind of circuit design method about raising light source performance |
| CN110446312B (en) * | 2019-06-25 | 2022-02-18 | 杭州艾芯智能科技有限公司 | Circuit design method for improving light source performance |
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Application publication date: 20120620 |