CN204756774U - Electron candle - Google Patents
Electron candle Download PDFInfo
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- CN204756774U CN204756774U CN201520241629.5U CN201520241629U CN204756774U CN 204756774 U CN204756774 U CN 204756774U CN 201520241629 U CN201520241629 U CN 201520241629U CN 204756774 U CN204756774 U CN 204756774U
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Abstract
The utility model discloses an electron candle relates to LED electronics lamp decoration field, has characteristics such as multi -functional use, energy -saving power. Main form including luminous wick, the candle body, waterproof cover, fix couple, the solar panel that charges, USB and charge converter, LED and expand lamp cluster group, external control panel, visible light remote controller and control circuit. Luminous wick appearance structure comprises wick seat, wick cover, and the wick seat comprises lid and central cavity, has battery poweredly in the central cavity. Control circuit installs in central cavity one side, is used for controlling whole wick work, and the operating surface of controlling element and interface is located wick flap body surface face, and the LED banks of a plurality of way light signal of control circuit output drive wick tip is luminous to by leaded light lens leaded light and project outside lamp body inner wall, finally make whole lamp body luminous.
Description
Technical field
The utility model relates to the sub-lamp decoration field of LED electrical, be specifically related to the luminous wick of multifunction energy-saving LED and electric candle, adopt control circuit structure that is multi-functional, energy-saving design.
Background technology
Luminous wick and electric candle are as the expansion derived product of Conventional luminescent light fixture.From the most ancient coal gas lamp, candle lighting to electron luminescence wick today.Electron luminescence wick form is in the market varied, have common bulb, have energy-saving bulb, have LED, has mains-supplied, has battery powered etc., is widely used the velocitron gorget territories such as illumination, ornament lamp, lantern.
Although luminous wick and electric candle are various in style, and be not often that function ratio more single or be not exactly practical not comprehensively, Energy Efficiency Ratio is not high, and below lower simply to analyze is done in citing.
Some wicks use mains-supplied, do not have the occasion of civil power to need other pull the wire, use inconvenience, cost not low, cannot use and have the potential safety hazards such as electric shock, electric leakage, fire during power failure.
Most electronics wick to use disposable battery, although have chargeable, charging modes is convenient and practical not, and it is inadequate that product continues usability.
The overwhelming majority uses luminous wick and the electric candle of battery+LED light-emitting mode, use simple series resistance current limliting form to the luminosity of control LED, even if some adopts PWM drives structure, but its LED drive circuit is simple, and photoelectric transformation efficiency, brightness, luminous efficiency are all inadequate.Most of lamplight brightness is without permanent photocontrol, and brightness battery electric quantity fluctuates, first bright secretly rear, just can not work after voltage is lower than certain value, but battery now also has more dump energy, and therefore battery utilization rate is low, causes the larger wasting of resources.
Some wicks use booster circuit+series resistance to control the electric current of LED, although also serve the permanent light action of certain constant current, battery utilization rate, luminous efficiency all improve to some extent, but employ simple series resistance current limliting form, resistance causes the electrical loss of larger proportion, and its driving force is less than normal, do not arrive desirable efficiency of energy utilization.
The power switch of most luminous wick and electric candle, arrange button etc. be positioned at bottom just below, after putting fixed position, user just cannot carry out direct control again, must could operate by flip cover, uses very inconvenient and has the risk of overturning, damaging.
Some wicks by manual control switch's lamp, without automatically turning off the light, function of turning on light, have employ simple timing controlled but practicality is inadequate, unattended occasion can not be suitable for and use.
The luminous wick of current majority is not Portable suspended type, and what have can only put in ad-hoc location, the lamp body being only suitable for hanging on several specific dimensions had, and such as, to size on the market, different lantern, suspension adaptability is inadequate.
Most luminous wick is not with waterproof, and be not suitable for outdoor round-the-clock application, environmental suitability is inadequate.
Summary of the invention
The purpose of this utility model is to provide electric candle, to solve above-mentioned multinomial defect in prior art.
The utility model includes: luminous wick, candle body, waterproof cover, fixed hook, solar panels, USB charging converter, LED expand lamp string group, external control panel, visible ray remote controller and control circuit composition.Luminous wick contour structures is made up of wick holder, wick cover, and wick holder is made up of lid and central cavity, has powered battery in central cavity.Control circuit is arranged on central cavity side, be used for controlling whole wick work, the operating surface of control element and interface is positioned at wick holder top surface, control circuit exports some street lamp optical signals and drives the LED group of wick end luminous, and guide-lighting and project outside lamp body inwall by light guiding lens, finally make whole lamp body luminous.
Adopt compact design good looking appearance generous, can be used as light modulation core and independently uses and also can be arranged on that candle body is inner forms electric candle, is a multifunction energy-saving LED luminescence wick and electric candle.
Use powered battery, band charging inlet, the disposable and rechargeable battery of compatible use.Operating voltage range is wide, and shape can be used to save all kinds battery and the connection in series-parallel combinations such as 1.2V or 1.5V battery, 1-2 joint 3V battery, 1 joint 3.7V battery as 1-4.High-energy source utilization rate, economizing on energy and electricity, overlength working time.Save No. 2 (No. C) for brand battery 2, once change battery last and use about 100 days (2400 hours), if with timing work in bright 4 hours/day, can use about 600 days, lamplight brightness is reasonable and constant.Suitably turn down brightness, the time continuing to use can reach 3000 hours.
Adopt SCM program to realize the intelligentized control method of light, brightness, light-emitting mode are all adjustable.Luminous position is positioned at wick end, adopts some ultra-high brightness LED lamp assembled highly-effective rates luminous; LED is inner and be added with reflector around to reflect spuious light raising light utilization rate, light projects candle or lamp body inwall by the camera lens of particular design, evenly one is glittering and translucent to make light, dynamic change light makes it to enhance each other's beauty, diversified lamp light mode more can make lamp body have several stratification significantly surperficial, and electric wire also can be used LED combination to be drawn out to wick outside and to put the luminescence of flame body.Light comprises that simulation candle dodges slowly, get brighter the patterns true to nature such as gradually back light, alternately flicker.
Control circuit architectural feature is: adopt multi-functional, energy-saving design, and circuit composition comprises: battery, high efficiency synchronous rectification buck/boost power-switching circuit, program PWM adjusting control circuit, low-loss LED drive circuit, high-luminous-efficiency LED.This is a kind of illuminating circuit pattern of high energy efficiency ratio.
Battery VBAT produces a specific and stable internal electric source VDD by the digital synchronous buck/boost high-efficiency power translation circuit of particular design, and synchronous rectification conversion efficiency can reach 95%, and the VF voltage of vdd voltage and LED used approximately.Power converting circuit is according to battery VBAT and VDD magnitude relationship automatic switchover buck/boost pattern, strict control inputs output voltage ratio can improve conversion efficiency, when battery VBAT is in decompression mode higher than during VDD, when battery VBAT is in boost mode lower than during VDD, it can work below 0.9V, even single battery work, most electricity of battery also can be fully utilized.
Program produces high brightness light also all the time with the brightness continuous illumination of setting with PWM in conjunction with low on-resistance metal-oxide-semiconductor modular form driving LED, and program can regulate drive current PWM dutycycle form to set brightness.This circuit structure substantially avoided the loss that in series resistance current limliting form, current-limiting resistance causes, also obviously improve compared to common driver circuit illumination effect, the economize on electricity more than 40% of same brightness, compare simple boost mode add the constant current of series resistance, permanent optical circuit power savings significantly, operating voltage range is wider, current drive capability is stronger, be suitable for the LED driving the VF voltages such as white light, blue light, green glow higher, be also suitable for the LED driving VF voltage as low in ruddiness, gold-tinted etc.These Energy-saving reformations all make battery life, utilization rate maximize, and greatly reduce use cost, have expanded the use field of luminous wick.
Wick uses in addition and namely candle body or housing share the same light homochromy with the light-illuminating of color, makes light utilization rate the highest, light best results, as red candle red light, and the warm white LEDs replacement that also available light efficiency is higher of yellow wax candle amber light.
Be furnished with ingehious design multifunctional ports socket, external control panel interface, charging inlet, TRYME user tried out interface and organically merge simultaneously.
Be furnished with and be attached to candle or the outside external control panel with film key of lamp body, push button signalling inputs the control circuit of wick inside by interface, thus realizes corresponding controlling functions.Make candle or lamp body have better operability, avoid user's flip cover to operate the inconvenience that bottom gauge tap causes and the risk of overturning, damaging housing.
Novel visible ray distant control function.Visible ray remote control system comprises two part remote controllers and receiver, for visible ray as: ruddiness, laser etc. are remote control carrier.Remote controller key signal launches visible ray with pulse code modulation form driving LED lamp, through opto-electronic conversion, amplification, Shape correction after wick reception light, decoded by CPU and perform corresponding function or optimum configurations, as open and close lamp, brightness etc. is set, thus realizes distant control function.During remote control, people can see the light that remote controller is launched, and similar flashlight form is irradiated, and to the very peculiar fresh sensation of people, interest is arisen spontaneously.
There is the timing function that can arrange the time delay lighting time, realize the automation of lighting, light-off, be suitable for unattended occasion.According to current time after opening power, the time delay hourage that distance starts lighting time point is set, waits time delay to terminate rear beginning and automatically light, timing to rear automatic light-off, later every day at same punctum lamp, light turning off timing, go round and begin again periodic duty, need not manual intervention control.This effectively avoids common timing function on market: power on and namely start timing bright light, daytime, opening power just started the shortcoming of bright light daytime.
There is light control time-delay function, improve wick work actual effect.Automatic lighting when light is dark, delay time is to rear automatic light-off (but turning off the light all the time when light is bright).Avoid on market common light-operated: lighting all the time after light is dark, the shortcomings such as lighting overlong time, whole night power consumption.There is light return difference control, effectively avoid lighting back reflection light to the interference of wick self light-operated circuit, make light-operated reliable and stable.
Feature in conjunction with outdoor application wick adopts separated type solar charging structure, and making full use of solar electrical energy generation is wick charging, ensures the non-maintaining continuous firing of wick.Solar energy electroplax is fixed on lamp body outside top, absorbs solar energy and is converted to electric energy and is charged to wick by charging inlet, and wick is arranged on the inside such as lamp body such as such as candle, lantern or storm lantern.The parameters such as reasonable disposition solar energy electroplax size, charged battery capacity, lamplight brightness, not only can reach predetermined working effect but also can save cost, energy-conserving and environment-protective.Charge daytime use in evening, fill one day energy with many days, as long as become a fine day never power-off, sky the moon also can continue to use a couple of days.
Wick band expansion connection interface is used for connecing external LED lamp string group, be applicable to the decoration occasions of large area, multi-angle, multi-faceted, many LED, a wick can drag multiple candle, lantern or lamp string, and it is integrative control that these lamp strings and king light core form lamp string group, the effect of circulation of having a ride on a horse up and down can be produced, also can produce effect of whole lamp body rotation etc., lighting effects are very grand.
Be furnished with the fixed hook of the spring shape of ingehious design, can adapt to again while making wick have portable characteristics hang on the different light fixture of all size general on the market, lampshade, lantern inside, use very convenient.
Have water-proof function, be furnished with waterproof cover and effectively protect the parts such as battery, battery cover, switch, waterproof does not affect again operation, makes whole wick in outdoor all weather operations, can be particularly suitable for the lamp body of the outdoor applications such as lantern, storm lantern, advertising lamp.
Wick and electric candle through well-designed functional expansionary by force, all can play a role in indoor, outdoor.Such as directly can make timing night lamp to use in indoor, or join some specific lampshades and become corresponding light fixture.In addition wick can be used to luminous outer also can being used as is USB charger or solar charger.
Accompanying drawing explanation
Fig. 1 a is the STRUCTURE DECOMPOSITION schematic diagram of the luminous wick of the electric candle described in the utility model embodiment;
Fig. 1 b is the structural representation of the candle body of the electric candle described in the utility model embodiment;
Fig. 1 c is the structural representation of the solar panels of the electric candle described in the utility model embodiment;
Fig. 1 d is the structural representation of the USB charging converter of the electric candle described in the utility model embodiment;
The LED that Fig. 1 e is the electric candle described in the utility model embodiment expands the structural representation of lamp string group;
Fig. 1 f is the structural representation of the external control panel of the electric candle described in the utility model embodiment;
Fig. 1 g is the structural representation of the visible ray remote controller of the electric candle described in the utility model embodiment;
Fig. 1 h is the structural representation of the fixed hook of the electric candle described in the utility model embodiment.
Fig. 2 a-2h is applied to the various usage schematic diagram of electric candle for the luminous wick described in the utility model embodiment.
Fig. 3 hangs on lantern, lantern string and solar charging electrical schematic for the luminous wick described in the utility model embodiment.
Fig. 4 a-4c is the LED expansion lamp various string group connection schematic diagram described in the utility model embodiment.
Fig. 5 a-5b is other purposes schematic diagram of the luminous wick described in the utility model embodiment.
Fig. 6 is the composition and working principle block diagram of the luminous wick circuit described in the utility model embodiment.
Fig. 7 is the luminous wick circuit theory diagrams described in the utility model embodiment.
Fig. 8 a is N1IC internal structure schematic diagram in the electric candle control circuit described in the utility model embodiment.
Fig. 8 b is the electric candle control circuit practice schematic diagram described in the utility model embodiment.
Wherein: 1-waterproof cover, 2-battery cover, 3-battery connects shell fragment, 4-battery, 5-wick holder, 6-light-sensitive element, 7-power switch, 8-button is set, 9-control circuit board, 10-LED lamp panel connects winding displacement, 11-multifunctional ports socket, 12-connect wire, 13-power positive cathode wire, 14-battery plus-negative plate shell fragment, 15-fixed leg, 16-LED string extension socket, 17-LED lamp panel, 18-LED group, 19-light guiding lens, 20-wick cover, 22-connect wire, 23-solar charging plug, 24-fixed double-sided glue, 25-solar panels substrate, 26-solar panels fixed frame, 27-USB charges output plug, 28-connect wire, 29-USB charging indicator light, 30-USB charging converter, 31-USB charging input socket, 32-USB line output plug, 33-USB connecting line, 34-USB line input plug, 35-LED string plug, 36-LED string wire, 37-LED cluster of lamps, ornamental section, 38-film key, 39-film face-plate, 40-cover connectors, 41-film face-plate plug, 42-remote control light-emitting LED, 43-remote controller casing, 44-remote controller PCB, 45-remote controller key, 46-remote controller battery, 47-battery buckle, 48-fixed hook, 49-candle body, 50-luminous wick (assembly), 51-candle flame body, 52-LED, 53-connect wire.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, being further elaborated the utility model.
As shown in Figure 1a, wick holder 5, wick cover 20 coordinates and is stuck and form the most basic profile of luminous wick, luminous wick (assembly) 50 be entirety after whole luminous wick has been assembled, inside is formed be described by general alignment order below.
Wick holder 5 is made up of upper cover body and central cavity, and central cavity is used for installing some batteries 4, and battery cover 2 is used for installing battery and connects shell fragment 3 and fixedly push down battery 4; Battery 4 is coupled together by cell connector 3, provides DC power supply to control circuit board 9 via battery plus-negative plate shell fragment 14 and power positive cathode wire 13.
Control circuit board 9 is arranged on the central cavity side of wick holder 5, and be used for controlling the work of whole wick, comprise following control element and interface, their operating surface is positioned at wick holder 5 upper cover body surface and is convenient to user operation.Power switch 7 be used for open, powered-down.Arrange button 8 to be used for arranging mode of operation and parameter.Light-sensitive element 6 receives extraneous light and realizes light-operated.Multifunctional ports socket 11 has organically merged external control interface, charging inlet, TRYME user try out interface in one.
Some street lamp optical drive signals that control circuit board 9 produces connect winding displacement 9 by LED lamp panel and are connected to LED lamp panel 17, and driving LED lamp group 18 is luminous.It is outside that some street lamp light that LED group 18 produces export to wick cover 20 by light guiding lens 19, and disperse equably, project lamp body internal interface, finally makes whole lamp body luminous.When needing practical application according to light, light guiding lens 19 may not individualism, and accessible site is in the vitreum lens of the single led lamp head of LED group 18.According to actual product need LED lamp panel 17 can, above control circuit board 9, light drive singal is received external LED lamp by direct wire.
LED lamp panel 17 is installed on wick holder 5 end by fixed leg 15, and LED string extension socket 16 is positioned in the middle part of LED lamp panel 17, and the external LED that exportable some street lamp optical drive signals are used for connecing expansion expands lamp string group.
As shown in Figure 1 b, the composition of electric candle part:
Candle body 49 is lamp bodies of candle shape, its middle, top is fixed with candle flame body 51, candle body 49 is enclosed within the periphery of luminous wick (assembly) 50, connect wire 53 and draw LED lamplight signal to LED 52 from luminous wick (assembly) 50 inside, LED 52 luminescence is illuminated and is placed on outside candle flame body 51, light is guide-lighting through the wall body of candle flame body 51, scattering produces flame effect, coordinate light to dodge method, thus simulate the effect that candle more true to nature lights.
As Fig. 2 series is applied to the various usage of electric candle for luminous core, wherein as Fig. 2 a be extraction 1 lamp to flame body, be extraction 2 lamps as Fig. 2 b to flame body, be extraction 3 lamps as Fig. 2 c to flame body, as Fig. 2 d be on wick 1 lamp+extraction, 1 lamp to flame body, as Fig. 2 e be wick 1 lamp directly through flame body, as Fig. 2 f be on wick 1 lamp project flame core, as Fig. 2 g be that on wick, many lamps project candle body and flame core, are extraction 3 lamp graded irradiation candle bodies and flame core as Fig. 2 h.
Waterproof cover 1 can cover in the waterproof protective hermetically-sealed construction that wick holder 5 upper cover and wick cover 20 constitute wick entirety, makes wick can outdoor all weather operations.
Fixed hook 21, structure consists of: the spring body of elastomeric material coiling, 2 vertical hanging feets and crotch.Spring body is placed on that wick cover 20 is peripheral to be formed integrally with wick, separates grab in lamp body peg suitable for reading or tapping, reliably wick is hung on lamp body inside by 2 vertical hanging feets and crotch.When dispatching from the factory, 2 vertical hanging feets do not have crotch, and user selects suitable position according to the size of lamp body (lantern), shape bends voluntarily, has fine versatility and flexibility.
As illustrated in figure 1 c, the composition of solar recharging part:
Solar panels substrate 25 outside has solar panels fixed frame 26 to protect, and lamp body (lantern) outside top can be fixed on the fixing hole of needle thread passing fixed frame 26 periphery, fixed double-sided glue 24 can be strengthened fixing, solar panels substrate 25 faces sunlight direction, the electric energy sent exports by connecting wire 22, be inserted into multifunctional ports socket 11 (charging inlet) by charging plug 23 to charge to wick, the generating of this outside, charge inside luminous separated type solar charging structure well utilize the feature of outdoor lamp body (lantern), use reliably convenient, flexible.
Be illustrated in figure 3 luminous wick and hang on lantern, lantern string and solar charging electrical schematic, also specifically illustrate the details that separated type solar charging structure is applied to lantern.
As shown in Figure 1 d, the composition of USB charging converter:
Consider the use cost of wick, general USB live part be with 1 drag many outer-type realize and be optional.USB line input plug 34 obtains DC5V power supply from external USB charging adapter, via USB connecting line 33, USB line input plug 32, USB charging input socket 31, be input to USB charging converter 30, and produce 1 and drag some charging signals to export by connecting wire 28, the USB output plug 27 that charges is inserted into multifunctional ports socket 11 (charging inlet), and a USB charging converter can give the charging of some wicks simultaneously.USB charging indicator light 29 indicates the charged state of corresponding wick.
As shown in fig. le, LED expands the composition of lamp string group:
If LED string plug 35 is inserted into LED string extension socket 16 and obtains street lamp optical drive signal from king light core, and luminous through LED string wire 36 driving LED lamp cluster of lamps, ornamental section 37.
LED string wire 36 is made up of a common wire and some drive wires, and a drive wire represents a paths of LEDs drive wire signal.LED cluster of lamps, ornamental section 37 is made up of some sections of LED sections arranged side by side, and a LED section correspondence can connect a lamp body (lantern, candle), and one group of LED string can connect one group of lamp body (lantern, candle) string.The illuminating effect of LED string wire 36 generation different from the connection of LED cluster of lamps, ornamental section 37.
Expand lamp string group connection as Fig. 4 series is depicted as LED, wherein as Fig. 4 a connects light connection, light connection as in parallel in Fig. 4 b, connection of dividing into groups as Fig. 4 c many lamps string, be not limited to this several special case.
If Fig. 5 series is other purposes of luminous wick, wherein as Fig. 5 a be festival lamp luster, decorative chain and as Fig. 5 b be electron luminescence storm lantern (drawing 3 candle bodies to join 1 wick).
As shown in Figure 1 f, the composition of external control panel:
Film face-plate 39 there is film key 38, key contact signal by cover connectors 40, and is inserted into multifunctional ports socket 11 (external control panel interface) input signal by film face-plate plug 41 and realizes to control circuit board 9 and power switch 7, to arrange the similar corresponding function of button 8.Film face-plate 39 is attached to lamp body (candle) side by gum with thin slice panel-form, user-friendly.
As shown in Figure 1 g, the composition of visible ray remote controller:
Visible ray remote controller is made up of remote controller casing 43, remote controller key 45, remote controller PCB44, battery buckle 47 etc.The battery 46 that uses a teleswitch is powered, after user presses remote controller key 45, remote controller PCB44 produces corresponding pulse code modulation signal, drive remote control light-emitting LED42 to launch visible ray (similar flashlight) and irradiate wick, light-sensitive element 6 receives extraneous light and is input to CPU through amplifying Shape correction, perform after CPU decoding press function corresponding to remote controller key, thus realize remote pilot.
Luminous wick control circuit and complete machine roughly operation principle:
Be illustrated in figure 6 the composition and working principle block diagram of luminous wick circuit.
Be illustrated in figure 7 luminous wick roughly circuit theory diagrams.
Be electric candle control circuit practice schematic diagram as shown in Figure 8 b.
If Fig. 8 a is N1IC internal structure schematic diagram in electric candle control circuit.
The composition of control circuit board:
Control circuit is positioned on control circuit board 9, roughly comprises: power switch, main power circuit, CPU (single-chip microcomputer), and crystal oscillator clock, arranges button, LED drive circuit, photoinduction circuit, over, solar charging circuit.
Wick built-up circuit also comprises: multifunctional ports socket 11 (comprise external control interface, charging inlet, TRYME user try out interface), LED lamp panel 17, LED group 18, LED string extension socket 16.
External circuit composition comprises: external control panel, charging solar panels, USB charging converter, and LED expands lamp string group, visible ray remote controller etc.
Power switch: battery 4 provides DC power supply for control circuit board 9, controls electric power starting, closedown by power switch 8.
Main power circuit: accept battery VBAT and power as whole control circuit board 9 provides a fixing voltage VDD.Battery VBAT, by the synchronous rectification buck/boost one conversion electric power circuit of particular design, produces stable internal electric source VDD.By changing R1/R2 Parameter adjustable joint vdd voltage, the VF voltage of the vdd voltage chosen and LED used approximately.Power converting circuit is according to battery VBAT and VDD magnitude relationship automatic switchover buck/boost pattern.When battery VBAT is in decompression mode higher than during VDD.When battery VBAT is in boost mode lower than during VDD, it can work VBAT lower than 0.9V, even single battery work, most electricity of battery also can be fully utilized.
Accepted standard synchronous rectification buck/boost integrated power supply change-over circuit, input, output services voltage range is the widest, adapt to battery electric quantity, voltage change ability the strongest, conversion efficiency can reach 95%, but cost is relatively high.
Consider actual production cost and conversion efficiency, the main power circuit of wick is directed to the VF voltage of different battery VBAT and VDD magnitude relationship and different light LED, can also select following 3 kinds of buck/boost topological structure circuit forms (often kind of circuit form all can regard a kind of flexible circuit of buck/boost integrated power supply change-over circuit under special voltage condition as):
Circuit form 1: synchronous rectification reduction voltage circuit, efficiency can reach 95%.This circuit uses decompression mode, is suitable for input voltage VBAT higher and all the time higher than the occasion of VDD.
Circuit form 2: synchronous rectified boost circuit, efficiency can reach 95%.This circuit uses boost mode, is suitable for input voltage VBAT lower and all the time lower than the occasion of VDD.
Circuit form 3: a kind of low voltage difference buck/boost integral circuitry.When VBAT is lower than being in synchronous rectified boost state during VDD.When VBAT is higher than being in step-down state during VDD, and requiring VBAT a little more than VDD and pressure reduction is little of below 0.6V, filling the stable vdd voltage of the generation of charge and discharge mode with copped wave.Although circuit inputs, output voltage range is wide not as standard synchronisation rectification buck/boost integrated power supply change-over circuit, circuit structure is succinct, and quiescent dissipation is minimum, and efficiency can reach 95%, and advantage of lower cost can be used on specific occasion.
Operation principle is: as shown in N1IC internal structure schematic diagram in Fig. 8 a-Fig. 8 b, there is pair of switches metal-oxide-semiconductor IC inside: boosting flyback metal-oxide-semiconductor Qr, devices Qd.When VBAT is lower than being in normal pressure-increasning state during VDD, Qr, Qd alternately open work to inductance and capacitor charge and discharge, and boosting produces stable vdd voltage.When VBAT is higher than VDD, Qr is in closed condition all the time, VDD is equaled in order to IC output voltage can be maintained, IC control circuit first can open Qd, VBAT passes through inductance L 1 to charging C2, C3 charges, Qd is closed immediately again after output voltage is higher than VDD when IC detects, C2, C3 starts electric discharge, after IC output voltage is lower than VDD, IC opens Qd again, the Qd that goes round and begins again is in the on off state and switching frequency is higher of bursting, IC is automatically according to vdd voltage, feed back and regulate Qd switch ratio, by the charge/discharge transformation of inductance and electric capacity, form chopping switch charge and discharge mode, thus step-down produces stable VDD, realize the buck functionality of efficient stable thus.Because VBAT is only than vdd voltage below height 0.6V, so the VDD ripple that step-down produces is also little, select rational L1 and C2, C3 parameter, voltage regulation result is better.
The luminous wick of this kind of buck/boost of low voltage difference cleverly integrated power supply change-over circuit is used to be successfully applied to the products such as electric candle, storm lantern, lamp string.Economizing on energy and electricity, overlength working time, LED luminance is reasonable and constant.Save No. 2 (No. C) for brand battery 2, once change battery last and use about 100 days (2400 hours), if with timing work in bright 4 hours/day, about 600 days can be used.If suitably turn down brightness, the time continuing to use can reach 3000 hours.
Crystal oscillator clock: for CPU provides precision clock reference frequency, comprise crystal oscillator and oscillating capacitance, if CPU is designed to application-specific integrated circuit chip, oscillating capacitance can be integrated into IC inside.If do not ask accurate timing, crystal oscillator clock can substitute with CPU internal oscillator.
CPU (single-chip microcomputer): the control core being whole luminous wick, after powering on, crystal oscillator clock makes CPU program start working, and produces some roads pwm signal to LED drive circuit on the one hand, and driving LED lamp group is luminous, can realize the intelligentized control method of light, brightness, light-emitting mode are all adjustable; Accept on the other hand to arrange button, photoinduction circuit, the signal of over, solar charging circuit, processes accordingly.
Cpu circuit form can be general single chip IC chip, but is not limited thereto, and also comprises the application-specific integrated circuit chip according to this principle design.Encapsulation can be case chip form also can be nude film binding form.
LED drive circuit: program produces pwm signal and drives low on-resistance metal-oxide-semiconductor to produce high brightness light with upper frequency switching molding form driving LED and all the time with the brightness continuous illumination of setting, can set brightness by regulating PWM dutycycle form.This circuit structure switching loss is very low, substantially avoided the loss that in series resistance current limliting form, current-limiting resistance causes, also obviously improve compared to common driver circuit illumination effect, the economize on electricity more than 40% of same brightness, compare simple boost mode and add that the more remarkable operating voltage range of the permanent optical circuit power savings of constant current of series resistance is wider, current drive capability is stronger, be suitable for the LED driving the VF voltages such as white light, blue light, green glow higher, be also suitable for the LED driving VF voltage as low in ruddiness, gold-tinted etc.These Energy-saving reformations all make battery life, utilization rate maximize, and greatly reduce use cost, have expanded the use field of luminous wick.
Consider actual production cost, when using small electric stream driving LED, consider that the current driving ability of general CPU output pin is comparatively strong, can directly export PWM driving LED lamp by CPU output pin luminous, to save use metal-oxide-semiconductor, but conversion efficiency is substantially constant.
Button is set: arrange button 8 and be used for using to user's parameters, the mode of operation of wick and various parameter can be set as light flash pattern, brightness, timing etc.
Photoinduction circuit: light-sensitive element 6 receives extraneous light and is input to CPU through amplifying Shape correction, performs an action, can realize light-operated switch, the functions such as visible ray remote control after CPU decoding.
Over, solar charging circuit: ensure that rechargeable battery because being reduced service life by excessive photoelectricity, can not control solar charging electric process and leaking electricity when preventing from not charging.
Claims (8)
1. an electric candle, is characterized in that, main composition includes luminous wick, candle body, waterproof cover, fixed hook, solar panels, USB charging converter, LED expansion lamp string group, external control panel, visible ray remote controller and control circuit; Luminous wick contour structures is made up of wick holder, wick cover, and wick holder is made up of lid and central cavity, has powered battery in central cavity; Control circuit is arranged on central cavity side, be used for controlling whole wick work, the operating surface of control element and interface is positioned at wick holder top surface, control circuit exports some street lamp optical signals to drive the LED group of wick end luminous, and guide-lighting and project outside lamp body inwall by light guiding lens, finally make whole lamp body luminous.
2. electric candle according to claim 1, it is characterized in that, described control circuit architectural feature is: circuit composition comprises battery, synchronous rectification buck/boost power-switching circuit, program PWM adjusting control circuit, LED drive circuit, high-luminous-efficiency LED.
3. electric candle according to claim 1, is characterized in that: some street lamp optical drive signals of wick inside export by LED string extension socket, and it is luminous to drive the LED of wick outside to expand lamp string group.
4. electric candle according to claim 1, is characterized in that: be furnished with and be attached to candle body or the outside external control panel with film key of lamp body, push button signalling inputs the control circuit of wick inside by interface, thus realizes corresponding control.
5. electric candle according to claim 1, is characterized in that: solar panels are positioned at lamp body outside, absorbs solar energy and is converted to electric energy and is charged to the wick of lamp body inside by charging inlet, is a kind of pluggable separated type solar electricity charging structure.
6. electric candle according to claim 1, is characterized in that: USB charging converter obtains power supply from external USB charging adapter, gives the charging of several wicks by charging inlet simultaneously.
7. electric candle according to claim 1, it is characterized in that: the remote controller key signal of visible ray remote controller launches visible ray with pulse code modulation form driving LED lamp, through opto-electronic conversion, amplification, Shape correction after wick reception light, decoded by CPU and perform corresponding control, thus realizing distant control function.
8. electric candle according to claim 1, it is characterized in that: be furnished with fixed hook, structure consists of: the spring body of elastomeric material coiling, 2 vertical hanging feets and crotch; It is peripheral that spring body is placed on wick cover, and separate grab in lamp body peg suitable for reading or tapping by 2 vertical hanging feets and crotch, wick hangs on lamp body inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241629.5U CN204756774U (en) | 2015-04-20 | 2015-04-20 | Electron candle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520241629.5U CN204756774U (en) | 2015-04-20 | 2015-04-20 | Electron candle |
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| CN204756774U true CN204756774U (en) | 2015-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | An LED light-emitting flame lamp circuit, an LED wind lamp and a candle lamp |
| CN112823570A (en) * | 2019-09-17 | 2021-05-18 | 武文静 | Candle lamp and vision persistence effect realization circuit thereof |
| CN116624820A (en) * | 2023-06-02 | 2023-08-22 | 炬锵工艺制品(惠州)有限公司 | lighting element |
-
2015
- 2015-04-20 CN CN201520241629.5U patent/CN204756774U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | An LED light-emitting flame lamp circuit, an LED wind lamp and a candle lamp |
| CN112823570A (en) * | 2019-09-17 | 2021-05-18 | 武文静 | Candle lamp and vision persistence effect realization circuit thereof |
| CN112823570B (en) * | 2019-09-17 | 2023-05-02 | 武文静 | Candle lamp and visual persistence effect realization circuit thereof |
| CN116624820A (en) * | 2023-06-02 | 2023-08-22 | 炬锵工艺制品(惠州)有限公司 | lighting element |
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Granted publication date: 20151111 Termination date: 20190420 |