CN201119100Y - A device for lighting multiple fluorescent lamps - Google Patents
A device for lighting multiple fluorescent lamps Download PDFInfo
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- CN201119100Y CN201119100Y CNU2007200978842U CN200720097884U CN201119100Y CN 201119100 Y CN201119100 Y CN 201119100Y CN U2007200978842 U CNU2007200978842 U CN U2007200978842U CN 200720097884 U CN200720097884 U CN 200720097884U CN 201119100 Y CN201119100 Y CN 201119100Y
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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
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Abstract
The utility model discloses a device which can light multiple fluorescent lamps. The device comprises an active filter circuit, a high frequency rectification circuit, a high frequency chopping power output circuit, a current phase shifting circuit, a current limiting circuit and a resonance circuit, wherein the fluorescent lamp tube unit is connected with the current phase shifting circuit, the current limiting circuit and the resonance circuit in series; mains supply passing through the active filter circuit and the high frequency rectification circuit in sequence is output to the high frequency chopping power output circuit, the high frequency chopping power output circuit provides electric power for two or above two circuits, namely, the current phase shifting circuit, the current limiting circuit and the resonance circuit connected in the output circuit in parallel. The device has the advantages that by adopting the high frequency switching power supply, the current phase shifting circuit, the current limiting circuit and the resonance circuit, the higher photo-electricity conversion efficiency on the premise that lower power is used is ensured to be obtained by the electric light source, multiple fluorescent lamps can be light simultaneously, the illuminating quality is obviously improved after multiple ballasts, starters or electronic ballasts are canceled, the power factor is enhanced, therefore, the purposes of saving raw material and energy are achieved.
Description
Technical field
The utility model relates to the electric source lighting technical field, particularly relates to a kind of device of lighting many fluorescent lamps.
Background technology
Traditional mode of lighting electric light source, be determine input line voltage, light tube electric voltage, lamp current, with inductance, electric capacity, resistance or electric ballast current limliting, step-down, method such as boost guarantees the startup and the operate as normal of electric light source.
The household electricity light source can be divided into the three major types type substantially at present: ordinary lamps (tungsten lamp), Halogen lamp LED and fluorescent lamp; Fluorescent lamp mainly is made up of fluorescent tube, starter, ballast, the fluorescent tube operation principle is: behind the switch connection power supply voltage is added between the two poles of the earth of starter, make the neon discharge and send aura, the heat that aura produces makes U type movable contact spring expansion elongation, connect with static contact, so the filament in ballast coil and the fluorescent tube just has electric current to pass through.After circuit was connected, the neon in the starter stopped discharge, and the cooling of U matrix is shunk, and two contacts separate the circuit automatic disconnection.In the moment that circuit disconnects suddenly, because the ballast electric current sharply reduces, can produce very high self induction electromotive force, self induction electromotive force and supply voltage that direction is identical with original voltage direction add together, form an instantaneous high pressure, be added in lamp tube ends, make the gas in the fluorescent tube begin discharge, begin luminous so fluorescent lamp becomes current paths.Fluorescent lamp begins when luminous, because alternating current will produce self induction electromotive force by the coil of ballast in the coil, it always hinders, and electric current changes, and at this moment ballast plays a part the step-down current limliting, to guarantee the fluorescent lamp operate as normal.Ballast produces instantaneous high pressure when starting, light fluorescent lamp, plays step-down when operate as normal, metering function; The effect of capacitor is to avoid producing electric spark in the starter.
Because traditional ignition device is directly lit a lamp by ballast with civil power 220V50Hz, improve power factor mostly as much as possible in order not influence electrical network reduction line loss, reduce reactive current, and electric current is depended in fluorescent lamp lamp power brightness of lamp just under the certain situation of light tube electric voltage.
The real work electric current of several electric light sources commonly used: under line voltage 220V situation,
Single lamp of 400W high-pressure sodium lamp, operating current are 4.2A.
Single lamp of 250W high-pressure sodium lamp, operating current are 2.5A.
Single lamp of 400W metal halide lamp, operating current are 3.8A.
Single lamp of 250W metal halide lamp, operating current are 2.3A.
Single lamp of inductance type ballast 40W fluorescent lamp, operating current is 0.36A.
Single lamp of electronic ballast 40W fluorescent lamp, operating current is 0.18A.
According to above data as can be known, the electric light source power consumption is except that electric light source itself, and ballast is simultaneously also at consumed power.In addition, the producer that great majority are engaged in lighting technology exploitation, produce drops into a large amount of manpowers, equipment, fund and is devoted to the research of ligthing paraphernalia as pure resistive load is produced little effect, and fails obviously to improve energy-saving effect.
In the prior art, because most of electric light source commonly used is low to the utilance of electric energy, and lighting quality is not high, has caused the waste of the raw material and the valuable energy.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides that a kind of cost is low, lighting quality is high, the effective energy-conservation device of lighting many fluorescent lamps.
The technical scheme that the utility model adopted is: a kind of device of lighting many fluorescent lamps, comprise: active filter circuit, rectifier filter circuit, high frequency chopping power output circuit, electric current phase shift, current limliting, resonant circuit, be connected in series with the fluorescent tube group in described electric current phase shift, current limliting, the resonant circuit, mains supply is imported described active filter circuit; Described active filter circuit is exported to described rectifier filter circuit, the positive voltage output end of described rectifier filter circuit output is connected with the positive voltage input of described high frequency chopping power output circuit, the negative voltage output of described rectifier filter circuit output is connected with the negative voltage input of described high frequency chopping power output circuit, and described high frequency chopping power output circuit provides electric power for electric current phase shift, current limliting, the resonant circuit that two or more are connected in parallel in the output loop.
The operating frequency range of described high frequency chopping power output circuit is 40-120KC.
The operating frequency of described high frequency chopping power output circuit is 80KC.
Described electric current phase shift, current limliting, resonant circuit are in series by inductance coil and fluorescent tube group and form, and described fluorescent tube group is composed in series by fluorescent tube is end to end, are connected with capacitor between one of them incoming end of every fluorescent lamp head end and tail end.
Fluorescent tube group in described electric current phase shift, current limliting, the resonant circuit is made up of 1 to 4 fluorescent tube.
Inductance coil in described electric current phase shift, current limliting, the resonant circuit and capacitive load fluorescent lamp are formed series resonant circuit, the resonance frequency of its each electric current phase shift, current limliting, resonant circuit has nothing in common with each other, and it is identical with the operating frequency of described high frequency chopping power output circuit that each series resonant circuit parallel connection becomes the resonance frequency after the overall load.
The beneficial effects of the utility model are: the utility model is owing to adopt high frequency switch power and electric current phase shift current limliting resonant circuit, can light many fluorescent lamps simultaneously, when having cancelled a plurality of ballasts, starter or a plurality of electric ballast, obviously improved lighting quality, reduced the Harmonics of Input total amount, improve power factor, thereby reached the purpose that saves material with the energy.
Utilize mains supply, produce one and the power supply that electric light source more can effectively mate is lighted electric light source than mains supply; Make electric light source can under the prerequisite of using smaller power, obtain higher photoelectric conversion efficiency; Under the situation of the normal working voltage that guarantees electric light source, effectively utilize reactive current, satisfy the electricity consumption requirement of electrical network and civil power simultaneously, thereby reach energy-conservation effect.
Description of drawings
Fig. 1 is a composition block diagram of the present utility model;
Fig. 2 is that the utility model is by inductance coil and single electric current phase shift, current limliting, the resonant circuit schematic diagram that fluorescent tube is formed;
Fig. 3 is that the utility model is by inductance coil and many electric current phase shift, current limliting, the resonant circuit schematic diagrames that fluorescent tube is formed.
Fig. 4 is the circuit diagram that the utility model is lighted the device of many group fluorescent lamps;
Among the figure:
PFC: active filter circuit PW: high frequency chopping power output circuit
IP: electric current phase shift, current limliting, resonant element IPin: input
IPout: electric current phase shift, current limliting, resonant circuit output
C: capacitor D: fluorescent lamp
S: Filament of fluorescent lamp splicing ear
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is a composition block diagram of the present utility model, as shown in Figure 1, the utility model is lighted the device of many fluorescent lamps, comprise: active filter circuit, rectifier filter circuit, high frequency chopping power output circuit and electric current phase shift, current limliting, resonant circuit, described electric current phase shift, current limliting, be connected in series with the fluorescent tube group in the resonant circuit, mains supply is exported to described rectifier filter circuit after importing described active filter circuit, the positive voltage output end of described rectifier filter circuit output is connected with the positive voltage input of described high frequency chopping power output circuit, the negative voltage output of described rectifier filter circuit output is connected with the negative voltage input of described copped wave power output circuit, and described high frequency chopping power output circuit is connected in parallel on electric current phase shift in the output loop for two or more, current limliting, resonant circuit provides electric power.Described electric current phase shift, current limliting, resonant circuit are in series by inductance coil and fluorescent tube group and form, and described fluorescent tube group is composed in series by fluorescent tube is end to end, are connected with capacitor between one of them incoming end of every fluorescent lamp head end and tail end.
Conventional fluorescent need man-to-manly be lighted with ballast, starter or electric ballast.There are several fluorescent lamps that several ballasts, starter or several electrons ballast are just arranged.And this device can a pair of n light many fluorescent lamps.When having cancelled n ballast, a starter or n electric ballast, also improved lighting quality, reduced the Harmonics of Input total amount, improved power factor, reached energy savings and raw-material purpose.
The utility model operation principle is as follows: the alternating current of 220V50Hz or 110V60Hz, behind over commutation with high-quality PFC active filter circuit, to effectively be improved because of lighting the current waveform that fluorescent lamp changes, substantially reach sinusoidal wave, simultaneously power factor is brought up to more than 0.98, and direct voltage boosted, reach and light the needed voltage of fluorescent lamp.Under the fluctuation of mains input voltage ± 30%, the VD of PFC active filter circuit remains unchanged.
Through high-frequency rectification, filtered direct voltage, through obtaining the alternating voltage output of a positive and negative symmetry of high frequency after the copped wave of high frequency chopping power output circuit, basic high frequency chopping power output circuit can be half-bridge, full-bridge, resonant circuit etc.No matter adopt the sort of circuit, when doing load, be the high-frequency alternating current of positive-negative half-cycle symmetry with fluorescent lamp.
The T0.T1 output of high frequency chopping power output circuit, two groups or more fluorescent lamp is lighted in parallel connection simultaneously.The quantity that the fluorescent lamp group is lighted in parallel connection depend on the high frequency chopping power output circuit power output and lighted the power of fluorescent tube.Its computational methods:
The power output W=1.2Wd of high frequency chopping power output circuit.
Wd be lighted the power summation of fluorescent lamp.
Fig. 2 be the utility model by inductance coil and single electric current phase shift, current limliting, the resonant circuit schematic diagram that fluorescent tube is formed, Fig. 3 is that the utility model is by inductance coil and many electric current phase shift, current limliting, the resonant circuit schematic diagrames that fluorescent tube is formed; Shown in Figure 3 as Fig. 2, every group of fluorescent lamp that parallel connection is lighted can be 1-4, and the fluorescent lamp in every group is for being connected in series, and its quantity depends primarily on peak, the peak value of the high frequency voltage of high frequency chopping power output circuit output, its computational methods:
Fluorescent lamp in every group is counted n=0.6Vpp/VD
Vpp: the output voltage peak of high frequency chopping power output circuit, peak value
VD: the pipe of every group of single fluorescent lamp in being connected in series is pressed
Every group of its power of the fluorescent lamp that is connected in series, pipe are pressed, operating current should be roughly the same.
Every group of fluorescent lamp that is connected in series should connect when being connected in parallel with high frequency chopping power output circuit output an electric current phase shift, current limliting, resonant inductance, the effect of electric current phase shift, current limliting, resonant inductance is current limliting, phase shift, resonance.
The utility model adopts traditional inductance to carry out current limliting, owing to be high frequency switch power, the frequency of its high frequency chopping power output up to tens of kilocycles to kilocycles up to a hundred, its current-limiting inductance is a high-frequency inductor, significantly reduce when its volume, power consumption are all than civil power 50Hz frequency under the identical situation of induction reactance, when having improved lighting quality, reach purpose of energy saving.
The utility model circuit is to change traditional ignition device, because traditional ignition device is directly lit a lamp by ballast with civil power 50Hz, reduce line loss in order not influence electrical network, improve power factor mostly as much as possible, reduce reactive current, and fluorescent lamp, under the situation that light tube electric voltage is determined, lamp power, the electric current that flows through lamp itself is depended in the brightness of lamp just, that is to say that to flow through the big more brightness of the electric current of fluorescent tube own big more, based on this principle, the utility model circuit has adopted phase shifting equipment, to flow through lamp tube current increases, that is, under the situation that does not increase the existing power of fluorescent tube
WD＝VD*ID*COSΦ。
WD=fluorescent tube active power;
The VD=light tube electric voltage;
The ID=lamp current;
COS Φ=lamp driver power factor.
Can draw from formula, reduce COS Φ and drop at 0.5 o'clock from 0.8, ID can improve 0.3 under all constant situation of WD, VD, that is, reactive current increases by 0.3, and the brightness of lamp can improve 0.3 promptly 30% under the constant situation of power.Second effect of phase shift is to change the phase place between the output voltage that flows through lamp tube current and high frequency chopping power output circuit.Make and flow through the lamp current phase place difference of respectively organizing fluorescent lamp D, the output current of high frequency chopping power output circuit will reduce, equal the also corresponding minimizing of electric current of 0.98 o'clock high frequency switch power input in power factor, and the electric current that the fluorescent lamp in every group flows through is constant, thereby reaches energy-conservation purpose.
Furtherly, every group of electric current phase shift that is connected in parallel in the high frequency chopping power output circuit output, current limliting, resonant circuit is by current-limiting inductance L, start capacitor C, add electric capacity E, fluorescent lamp, form series resonant circuit, its resonance frequency has nothing in common with each other, it is identical with the frequency of described high frequency chopping power output circuit that every group of series resonant circuit parallel connection becomes the resonance frequency after the overall load, the output current of civil power will reduce in the identical time, consequently guaranteeing under the constant situation of every group of D fluorescent lamp electric current, reduce the output current of active filter circuit PFC and high frequency chopping power output circuit, thereby reached purpose of energy saving.
The utility model circuit is to utilize active filter circuit PFC, and high frequency chopping power output circuit and other circuit bank become a high frequency switch power.Switching frequency is 40KC to 120KC, and optimal selection is 80KC, lights 2 groups or 2 groups of above fluorescent tube groups.
Fig. 3 be the utility model by inductance coil and many electric current phase shift, current limliting, the resonant circuit schematic diagrames that fluorescent tube is formed, Fig. 4 is the circuit diagram that the utility model is lighted the device of many fluorescent lamps; As shown in Figures 1 to 4, civil power 220v50Hz or 110v60Hz power supply is connected with active filter circuit PFC input 1.2, the positive and negative terminal of active filter circuit PFC output is connected with the rectifier filter circuit positive-negative input end, the output of high-frequency rectification circuit is connected with the input of high frequency chopping power output circuit PW, the power take-off T0 of high frequency chopping power output circuit PW and all electric current phase shifts, current limliting, the input IPin of resonant circuit IP is connected, the electric current phase shift, current limliting, the output of resonant element IP, be connected with the filament S1 end of pairing fluorescent lamp, the other end S2 of the filament of fluorescent lamp, be connected by capacitor C with another S3 end of organizing filament of corresponding fluorescent lamp, another group filament S4 is the electric current phase shift, current limliting, resonant circuit output IPout can directly be connected with the output T1 of high frequency chopping power output circuit PW, also can 1 after the series connection of-4 fluorescent lamps, filament Sn is the electric current phase shift, current limliting, resonant circuit output IPout end is connected with the output T1 of high frequency chopping power output circuit PW, all loads of high frequency chopping power output circuit PW, promptly, the electric current phase shift, current limliting, resonant circuit and electric current phase shift, current limliting, the fluorescent lamp D that resonant element IP is connected all with high frequency chopping power output circuit PW output T0, T1 is connected in parallel, each electric current phase shift, current limliting, resonant element IP connects one group of fluorescent lamp D, every group of fluorescent lamp D is connected in series by capacitor C and filament, and the quantity of the fluorescent lamp D that is connected in series is 1-4.
Described electric current phase shift, current limliting, resonant inductance and capacitive load fluorescent lamp D form series resonant circuit, its each series resonant circuit resonance frequency has nothing in common with each other, and it is identical with the frequency of described high frequency chopping power output circuit that each series resonant circuit parallel connection becomes the resonance frequency after the overall load.
It is worthy of note; protection range of the present utility model is not limited to above-mentioned instantiation mode, and according to basic fundamental design of the present utility model, those of ordinary skills need not through creative work; the execution mode that can associate all belongs to protection range of the present utility model.
Claims (6)
1. device of lighting many fluorescent lamps, comprise: active filter circuit, rectifier filter circuit, high frequency chopping power output circuit, it is characterized in that: also comprise electric current phase shift, current limliting, resonant circuit, be connected in series with the fluorescent tube group in described electric current phase shift, current limliting, the resonant circuit, mains supply is imported described active filter circuit; Described active filter circuit is exported to described rectifier filter circuit, the positive voltage output end of described rectifier filter circuit output is connected with the positive voltage input of described high frequency chopping power output circuit, the negative voltage output of described rectifier filter circuit output is connected with the negative voltage input of described high frequency chopping power output circuit, and described high frequency chopping power output circuit provides electric power for electric current phase shift, current limliting, the resonant circuit that two or more are connected in parallel in the output loop.
2. a kind of device of lighting many fluorescent lamps according to claim 1 is characterized in that: the operating frequency range of described high frequency chopping power output circuit is 40-120KC.
3. a kind of device of lighting many fluorescent lamps according to claim 2 is characterized in that: the operating frequency of described high frequency chopping power output circuit is 80KC.
4. a kind of device of lighting many fluorescent lamps according to claim 1, it is characterized in that: described electric current phase shift, current limliting, resonant circuit are in series by inductance coil and fluorescent tube group and form, described fluorescent tube group is composed in series by fluorescent tube is end to end, is connected with capacitor between one of them incoming end of every fluorescent lamp head end and tail end.
5. a kind of device of lighting many fluorescent lamps according to claim 4 is characterized in that: the fluorescent tube group in described electric current phase shift, current limliting, the resonant circuit is made up of 1 to 4 fluorescent tube.
6. according to claim 1 or 4 described a kind of devices of lighting many fluorescent lamps, it is characterized in that: inductance coil in described electric current phase shift, current limliting, the resonant circuit and capacitive load fluorescent lamp are formed series resonant circuit, the resonance frequency of its each electric current phase shift, current limliting, resonant circuit has nothing in common with each other, and it is identical with the operating frequency of described high frequency chopping power output circuit that each series resonant circuit parallel connection becomes the resonance frequency after the overall load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200978842U CN201119100Y (en) | 2007-11-19 | 2007-11-19 | A device for lighting multiple fluorescent lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200978842U CN201119100Y (en) | 2007-11-19 | 2007-11-19 | A device for lighting multiple fluorescent lamps |
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| Publication Number | Publication Date |
|---|---|
| CN201119100Y true CN201119100Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200978842U Expired - Fee Related CN201119100Y (en) | 2007-11-19 | 2007-11-19 | A device for lighting multiple fluorescent lamps |
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| CN (1) | CN201119100Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295951A (en) * | 2013-07-17 | 2015-01-21 | 龚秋声 | Energy saving lamp illuminating system with power supplied by medium-frequency power supply |
-
2007
- 2007-11-19 CN CNU2007200978842U patent/CN201119100Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295951A (en) * | 2013-07-17 | 2015-01-21 | 龚秋声 | Energy saving lamp illuminating system with power supplied by medium-frequency power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20151119 |
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| EXPY | Termination of patent right or utility model |