CN204741608U - Intelligence high pressure sodium lamp electronic ballast - Google Patents
Intelligence high pressure sodium lamp electronic ballast Download PDFInfo
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- CN204741608U CN204741608U CN201520328131.2U CN201520328131U CN204741608U CN 204741608 U CN204741608 U CN 204741608U CN 201520328131 U CN201520328131 U CN 201520328131U CN 204741608 U CN204741608 U CN 204741608U
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Abstract
Intelligence high pressure sodium lamp electronic ballast, belongs to the electronic device field, can effectively make the light intensity in order to provide one kind, the electronic ballast that energy saving and anti surge voltage strike, including the consecutive filtering unit that connects, rectification and active power factor correction unit, high frequency half -bridge inverter unit, mains input terminal, still include the surge protection unit, unit and intelligent control unit adjust luminance, the surge protection unit links to each other with mains input terminal and filtering unit respectively, intelligent control unit is connected with the high frequency half -bridge inverter unit and the unit of adjusting luminance, gush the protected location and include firewire input port, zero line input, ground wire input end, live wire output and zero line output, still include gas discharge tube no. 1, gas discharge tube no. 2, gas discharge tube no. 3, resistance no. 1, resistance no. 2, resistance no. 3, resistance no. 4, inductance no. 1 and inductance no. 2, resistance no. 1, resistance no. 2, resistance no. 3, four metal oxide varistor that all are hot protection type of resistance, be applicable to current electronic ballast.
Description
Technical field
The utility model belongs to field of electronic devices, specifically a kind of energy-saving electronic ballast being applicable to intelligent high-pressure sodium vapor lamp.
Background technology
Along with carrying out in an all-round way of national energy-saving emission reduction work, emerge in large numbers a large amount of Energy--Saving Illuminating Sources at Chinese lighting field, new product as various in LED, Non-polarized lamp etc.But owing to being subject to the serious restriction of the factors such as light efficiency is low, price is high, under current market and economic environment, the various new product such as LED, Non-polarized lamp replaces the high-pressure sodium lamp, the Metal halogen lamp that generally use now, and difficulty is larger.High-pressure sodium lamp (HPSL) is a kind of high-intensity gas discharge lamp (HIDL) of excellent performance, and its advantage is that light efficiency is high, the life-span is long, photochromic good, so be widely used.The same with all gas discharge electric light sources, high-pressure sodium lamp, in negative V-I characteristic, needs ballast to suppress lamp current, and needs the gas breakdown voltage of 5 ~ 20kV when starting.And ballast comprises electronic ballast and inductance type ballast.But along with the development of electronic technology, adopt electronic ballast to replace traditional inductance type ballast at lighting field, its power savings clearly, can reach more than 30%, and has the features such as with low cost, the life-span is long, volume is little, voltage range is wide.
The poor reliability of the electronic ballast of high voltage sodium lamp now developed, be embodied in electronic component and often burnt, its reason is relevant with the surge voltage in mains-supplied net.Existing electronic ballast of high voltage sodium lamp does not generally arrange surge protection circuit, even if be provided with this protective circuit, but its protected effect is not satisfactory.In addition, existing electronic ballast of high voltage sodium lamp does not have light intensity adjusting function, and when light is not too dark, the power consumption of high-pressure sodium lamp is comparatively large, and energy waste is serious.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electronic ballast of intelligent high-voltage sodium lamp, and this ballast has the performance that anti-surge voltage impacts, low residual voltage and zero afterflow, and effectively can modulate light intensity, energy savings.
The utility model solves the technical scheme that its technical problem adopts: electronic ballast of intelligent high-voltage sodium lamp, comprise be connected successively filter unit, rectification and Active Power Factor Correction unit, high frequency half bridge inversion unit, also comprise mains electricity input end, described mains electricity input end comprises live wire end, zero line side, ground terminal, also comprise surge protection unit, dimming unit and intelligent control unit, described surge protection unit is connected with mains electricity input end and filter unit respectively, and intelligent control unit is connected with high frequency half bridge inversion unit and dimming unit;
Described surge protection unit comprises live wire input, zero line input, ground wire input, fire wire output end and zero line output, also comprise gas discharge tube one, gas discharge tube two, gas discharge tube three, resistance one, resistance two, resistance three, resistance four, Thermal Cutoffs one, inductance one and inductance two, resistance one, resistance two, resistance three, resistance four are all the metal oxide piezo-resistance of Thermal protection type; The live wire input of surge protection unit, zero line input, ground wire input connect one to one be connected with the live wire end of mains electricity input end, zero line side, ground terminals respectively; One end of Thermal Cutoffs one is connected with live wire input, the two ends of resistance one are connected with the other end of Thermal Cutoffs one and one end of gas discharge tube one respectively, the two ends of resistance two are connected with the other end of gas discharge tube one and zero line input respectively, and the another end of gas discharge tube one is connected with ground wire input; The two ends of resistance three are connected with the other end of Thermal Cutoffs one and one end of gas discharge tube two respectively, and the other end of gas discharge tube two connects with zero line input; The two ends of resistance four are connected with one end of fire wire output end and gas discharge tube three respectively, and the other end of gas discharge tube three is connected with zero line output; The other end of Thermal Cutoffs one is connected with fire wire output end by inductance one, and zero line input is connected with zero line output by inductance two.
Further, also comprise indicator light and divider resistance, another pin of the Thermal Cutoffs of resistance one connects with another pin of the Thermal Cutoffs of resistance two, another pin of the Thermal Cutoffs of resistance two connects with another pin of the Thermal Cutoffs of resistance three again, another pin of the Thermal Cutoffs of resistance three is connected with the positive pole of indicator light by divider resistance, and the negative pole of indicator light is connected with another pin of the Thermal Cutoffs of resistance four again.
Concrete, dimming unit comprises the light adjusting circuit signal input unit, signal conversion unit, control signal output unit and the power adjustment unit that are connected.
Concrete, described high frequency half bridge inversion unit comprises the active half-bridge branch road of two power switch transistor compositions and the passive half-bridge branch road of two capacitor compositions, and described two power switch transistors are N channel enhancement MOSFET power tube.
Preferably, described intelligent control unit is the single-chip microcomputer of PIC18 series.
The beneficial effects of the utility model are: structure is simple; be easy to manufacture; high safety; adopt frequency modulating technology to eliminate acoustic resonance phenomenon, can ensure that the current operating frequency moment of high-pressure sodium lamp changes around centre frequency, and overcurrent, overvoltage and abnormal protection can be provided; reliability is strong; effectively can modulate light intensity simultaneously, reduce power consumption, energy savings.The utility model is applicable to existing electric ballast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of surge protection unit of the present utility model;
Wherein, L10 is live wire input, and N10 is zero line input, L20 is fire wire output end, and N20 is zero line output, and PE is ground wire input, L1 is inductance one, L2 be inductance two, G1 is gas discharge tube one, G2 is gas discharge tube two, G3 be gas discharge tube three, TMOV1 is resistance one, TMOV2 is resistance two, TMOV3 be resistance three, TMOV4 is resistance four, LED is indicator light, and R is divider resistance, and TCO1 is Thermal Cutoffs one.
Embodiment
Below in conjunction with accompanying drawing, describe the technical solution of the utility model in detail.
As shown in Fig. 1 and 2, electronic ballast of intelligent high-voltage sodium lamp of the present utility model, comprise be connected successively filter unit, rectification and Active Power Factor Correction unit (APEC), high frequency half bridge inversion unit, also comprise mains electricity input end, described mains electricity input end comprises live wire end, zero line side, ground terminal, also comprise surge protection unit and dimming unit, intelligent control unit, described surge protection unit is connected with mains electricity input end and filter unit respectively, and intelligent control unit is connected with high frequency half bridge inversion unit and dimming unit; Described surge protection unit comprises live wire input L10, zero line input N10, ground wire input PE, fire wire output end L20 and zero line output N20, also comprise gas discharge tube one G1, gas discharge tube two G2, gas discharge tube three G3, resistance one TMOV1, resistance two TMOV2, resistance three TMOV3, resistance four TMOV4, Thermal Cutoffs one TCO1, inductance one L1 and inductance two L2, described resistance one TMOV1, resistance two TMOV2, resistance three TMOV3, resistance four TMOV4 are the metal oxide piezo-resistance (TMOV) of Thermal protection type; Live wire input L10, the zero line input N10 of surge protection unit, ground wire input PE connect one to one be connected with the live wire end of mains electricity input end, zero line side, ground terminals respectively; One end of Thermal Cutoffs one TCO1 is connected with live wire input L10, the two ends of resistance one TMOV1 are connected with the other end of Thermal Cutoffs one TCO1 and one end of gas discharge tube one respectively, the two ends of resistance two TMOV2 are connected with the other end of gas discharge tube one G1 and zero line input N10 respectively, and the another end of gas discharge tube one G1 is connected with ground wire input PE; The two ends of resistance three TMOV3 are connected with the other end L10 of Thermal Cutoffs one TCO1 and one end of gas discharge tube two G2 respectively, and the other end of gas discharge tube two G2 connects with zero line input N10; The two ends of resistance four TMOV4 are connected with one end of fire wire output end L20 and gas discharge tube three G3 respectively, and the other end of gas discharge tube three G3 is connected with zero line output N20; The other end of Thermal Cutoffs one TCO1 is connected with fire wire output end L20 by inductance one L1; zero line input is connected with zero line output N20 by inductance two L2, and the fire wire output end L20 of surge protection unit and zero line output N20 is connected with the fire wire output end of filter unit and zero line output respectively.
Electric ballast is exactly in fact power-switching circuit, the low-frequency ac power of input is carried out the change of frequency, waveform and amplitude, provides satisfactory high-frequency ac power to high-pressure sodium lamp.Therefore, power supply is input to the work of supply high-pressure sodium lamp from electrical network, must through AC-DC, DC-AC two change procedures.The former adopts conventional bridge rectifier to realize.The latter and inverter circuit, fundamental type mainly contains: regression equation, push-pull type, semibridge system and full-bridge type.Electric ballast provides the current limliting in high-pressure pneumatic and steady operation for high-pressure sodium lamp.The pneumatic of high-pressure sodium lamp is exactly produce arc light by igniting and make it stable process.Filter unit can resist radio frequency and electromagnetic interference, power supply network and electric ballast is isolated mutually, excludes interference each other.Adopt rectification and Active Power Factor Correction unit can obtain stable elevated track power factor.
TMOV as the standard components and parts of Surge Protector, both can be used as one independently surge suppressor be arranged in equipment, again can as the components and parts of Surge Protector (as SPD, TVSS).The classical insulation of TMOV is completely the same with conventional MOV parameter.MOV (metal oxide piezo-resistance) is connected in series with TCO (Thermal Cutoffs), does not affect the electric property of MOV.
Wherein, first branch road is: the branch road that resistance one TMOV1, gas discharge tube one G1 connect with resistance two TMOV2; the isolation of live wire input L10 and ground wire input PE can be realized respectively, and the isolation of zero line input N10 and ground wire input PE, be this key problem in technology lightning protection part.Overtemperature protection can be formed to follow-up each unit by using Thermal protection type piezo-resistance.Second branch road is: the branch road that resistance three TMOV3 connects with gas discharge tube two G2.3rd branch road is: the branch road that resistance four TMOV4 connects with gas discharge tube three G3.
Adopt multiple TMOV parallel connection more reliable than only adopting single TMOV; because adopt single TMOV to protect; once this TMOV lost efficacy; then protected equipment just will lose protection; and when after employing several TMOV parallel connection protection; in TMOV doublet, if one damaged, other intact persons still can undertake protective effect.And when being applied to the protection occasion of larger transient state overcurrent, multiple TMOV parallel connection can provide lower clamping voltage, improves the ability of transient state overcurrent of releasing.In like manner, take the mode of the first branch road, the second branch road and the 3rd branch circuit parallel connection, more reliable than single branch road.
In the circuit of TMOV and GDT tandem compound, GDT plays on-off action, when there is no transient overvoltage effect, TMOV and supply power voltage can keep apart by it, do not apply power-frequency voltage, almost No leakage electric current in TMOV, effectively can solve the problem that the leakage current in TMOV constantly increases.If separately GDT is used in a power, GDT can produce afterflow, but when TMOV and GDT is connected in series, TMOV therebetween just can cut off afterflow.
In order to the operating state of surge protection unit can be observed in time, be provided with indicator light.Another pin of the Thermal Cutoffs of resistance one TMOV1 connects with another pin of the Thermal Cutoffs of resistance two TMOV2, another pin of the Thermal Cutoffs of resistance two TMOV2 connects with another pin of the Thermal Cutoffs of resistance three TMOV3 again, another pin of the Thermal Cutoffs of resistance three TMOV3 is connected with the positive pole of indicator light LED by divider resistance R, and the negative pole of indicator light LED is connected with another pin of the Thermal Cutoffs of resistance four TMOV4 again.Indicator light LED also connects with each Thermal Cutoffs, when MOV normally works, indicator light is bright, when MOV excess temperature, its inside presents short-circuit condition, and whole MOV becomes a good conductor, and excessive electric current flows through MOV and fuse within the extremely short time, thus causing blown fuse, indicator light extinguishes.In addition also can utilize audible alarm unit or sound and light warning unit carry out Thermal Cutoffs fusing time alert operation.
This surge protection unit is when breaking down, and device has overheated dropout defencive function, can disconnect the connection with electrical network immediately, improves protective capability and reliability, protection subsequent cell.
The output of described dimming unit is connected with high-pressure sodium lamp, can control the brightness of high-pressure sodium lamp according to intelligent control unit in time.As intelligent control unit is provided with time control program, light intensity can be strengthened at late 8 to morning 5, reduce light intensity morning 5 gradually to morning 7.
Of the present utility model intelligent in order to improve, intelligent control unit is the single-chip microcomputer of PIC18 series, and its crystal oscillator frequency is high, and speed is fast, and peripheral hardware aboundresources, the program space is large.Dimming unit comprises the light adjusting circuit signal input unit, signal conversion unit, control signal output unit and the power adjustment unit that are connected.Light adjusting circuit signal input unit can catch the extraneous light intensity luminance signal of current time, is then judged whether to need to regulate light intensity by intelligent control unit, if desired, then controls high-pressure sodium lamp by power adjustment unit and changes light intensity.
General, described high frequency half bridge inversion unit comprises the active half-bridge branch road of two power switch transistor compositions and the passive half-bridge branch road of two capacitor compositions, and lamp load is connected between two branch roads.Two transistor alternate conduction and cut-off, can obtain a high frequency sinusoidal voltage, be lighted by tube starting between the mid point of two half-bridges, and lamp load electric current is provided by passive half-bridge branch road.Wherein, two power switch transistors select N channel enhancement MOSFET power tube, this power tube is the monopole type device relying on majority carrier work, there is not the intrinsic second breakdown of bipolar transistor and minority carrier storage time problem, thus there is larger area of safety operaton, good thermal stability and high switching speed, driving power is little, and circuit is simple.
The utility model is applicable to 150w, the situation of 250w, 450w.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. electronic ballast of intelligent high-voltage sodium lamp, comprise be connected successively filter unit, rectification and Active Power Factor Correction unit, high frequency half bridge inversion unit, also comprise mains electricity input end, described mains electricity input end comprises live wire end, zero line side, ground terminal, it is characterized in that, also comprise surge protection unit, dimming unit and intelligent control unit, described surge protection unit is connected with mains electricity input end and filter unit respectively, and described intelligent control unit is connected with high frequency half bridge inversion unit and dimming unit;
Described surge protection unit comprises live wire input, zero line input, ground wire input, fire wire output end and zero line output, also comprise gas discharge tube one, gas discharge tube two, gas discharge tube three, resistance one, resistance two, resistance three, resistance four, Thermal Cutoffs one, inductance one and inductance two, described resistance one, resistance two, resistance three, resistance four are all the metal oxide piezo-resistance of Thermal protection type; The live wire input of surge protection unit, zero line input, ground wire input connect one to one with the live wire end of mains electricity input end, zero line side, ground terminal respectively; One end of Thermal Cutoffs one is connected with live wire input, the two ends of resistance one are connected with the other end of Thermal Cutoffs one and one end of gas discharge tube one respectively, the two ends of resistance two are connected with the other end of gas discharge tube one and zero line input respectively, and the another end of gas discharge tube one is connected with ground wire input; The two ends of resistance three are connected with the other end of Thermal Cutoffs one and one end of gas discharge tube two respectively, and the other end of gas discharge tube two connects with zero line input; The two ends of resistance four are connected with one end of fire wire output end and gas discharge tube three respectively, and the other end of gas discharge tube three is connected with zero line output; The other end of Thermal Cutoffs one is connected with fire wire output end by inductance one, and zero line input is connected with zero line output by inductance two.
2. electronic ballast of intelligent high-voltage sodium lamp as claimed in claim 1, it is characterized in that, also comprise indicator light and divider resistance, one pin of the Thermal Cutoffs of resistance one connects with a pin of the Thermal Cutoffs of resistance two, another pin of the Thermal Cutoffs of resistance two connects with a pin of the Thermal Cutoffs of resistance three again, another pin of the Thermal Cutoffs of resistance three is connected with the positive pole of indicator light by divider resistance, and the negative pole of indicator light is connected with a pin of the Thermal Cutoffs of resistance four again.
3. electronic ballast of intelligent high-voltage sodium lamp as claimed in claim 1, it is characterized in that, dimming unit comprises the light adjusting circuit signal input unit, signal conversion unit, control signal output unit and the power adjustment unit that are connected.
4. electronic ballast of intelligent high-voltage sodium lamp as claimed in claim 3, it is characterized in that, described high frequency half bridge inversion unit comprises the active half-bridge branch road of two power switch transistor compositions and the passive half-bridge branch road of two capacitor compositions, and described two power switch transistors are N channel enhancement MOSFET power tube.
5. electronic ballast of intelligent high-voltage sodium lamp as claimed in claim 1, it is characterized in that, described intelligent control unit is the single-chip microcomputer of PIC18 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328131.2U CN204741608U (en) | 2015-05-20 | 2015-05-20 | Intelligence high pressure sodium lamp electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328131.2U CN204741608U (en) | 2015-05-20 | 2015-05-20 | Intelligence high pressure sodium lamp electronic ballast |
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| Publication Number | Publication Date |
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| CN204741608U true CN204741608U (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520328131.2U Expired - Fee Related CN204741608U (en) | 2015-05-20 | 2015-05-20 | Intelligence high pressure sodium lamp electronic ballast |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089366A (en) * | 2017-06-13 | 2018-12-25 | 乐山加兴科技有限公司 | Electric ballast with surge protection circuit |
| CN109089367A (en) * | 2017-06-13 | 2018-12-25 | 乐山加兴科技有限公司 | Intelligent electronic ballast for fluorescent lamp |
-
2015
- 2015-05-20 CN CN201520328131.2U patent/CN204741608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089366A (en) * | 2017-06-13 | 2018-12-25 | 乐山加兴科技有限公司 | Electric ballast with surge protection circuit |
| CN109089367A (en) * | 2017-06-13 | 2018-12-25 | 乐山加兴科技有限公司 | Intelligent electronic ballast for fluorescent lamp |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20160520 |