CN101924386A - Charging-discharging controller of solar street lamp - Google Patents
Charging-discharging controller of solar street lamp Download PDFInfo
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- CN101924386A CN101924386A CN2010102783370A CN201010278337A CN101924386A CN 101924386 A CN101924386 A CN 101924386A CN 2010102783370 A CN2010102783370 A CN 2010102783370A CN 201010278337 A CN201010278337 A CN 201010278337A CN 101924386 A CN101924386 A CN 101924386A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a charging-discharging controller of a solar street lamp, comprising a solar battery board, a storage battery, a lamp, a charging current detecting circuit module, a dynamic energy storage element, a solar battery board voltage detecting circuit module, a charging pulse width control circuit module, a charging control switch module, a storage battery voltage detecting circuit module, a discharging pulse width control circuit module and a discharging control switch module. The charging-discharging controller has the advantages of improving the charging efficiency, prolonging the lamp-lighting time and reduces the passivation phenomenon of the storage battery.
Description
Technical field
The present invention relates to a kind of solar street light power-saving technology, be specifically related to a kind of charging-discharging controller of solar street lamp.
Background technology
In present city, the night lighting street lamp has been brought into use solar street light, fully is beneficial to green energy resource to reach, the purpose of saves energy.Existing charging-discharging controller of solar street lamp, its circuit structure is generally by solar panel and storage battery and is connected to form charge circuit, storage battery and energy-saving lamp connect and compose the work loop, in charge circuit and work loop, can adopt the break-make of photosensitive switch control circuit, make to absorb solar energy storage its daytime, carry out bright lamp illumination night.
In the existing solar street light control technology, when charging, solar cell panel voltages need be higher than battery tension, charge efficiency the best when solar panel reaches maximum power.But when insufficient light, the energy that solar panel is collected is low, its voltage can sharply descend during charging, charging current reduces, will cause charge efficiency to reduce, also have in the part control technology and used boost module, by boosting and voltage stabilizing charges a battery, but boost and Voltage stabilizing module meeting consumption part electric weight itself, reduced charge efficiency equally.In addition, in the existing solar street light control technology, continue charging modes, easily cause storage battery to produce passivation phenomenon, have a strong impact on the useful life of storage battery because charging is the direct current that adopts.
Simultaneously, in the existing solar street light control technology, when night lighting, generally be directly to adopt storage battery directly to power to light fixture, there is the short defective of power-on time, particularly more obvious when accumulator electric-quantity is not enough.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of charge efficiency that can improve at above-mentioned the deficiencies in the prior art, prolongation light fixture operating time, the charging-discharging controller of solar street lamp of reduction storage battery passivation phenomenon.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of charging-discharging controller of solar street lamp comprises:
Solar panel, being used for transform light energy is electric energy;
Storage battery, described storage battery and solar panel are connected to form charge circuit;
Light fixture, described light fixture and storage battery are connected to form discharge loop;
Its characteristics are, also comprise
Charging current testing circuit module, described charging current testing circuit module is arranged in the charge circuit, is used to detect the charging current size; Described charging current testing circuit module is to be used to detect the charge circuit current effective value, described current effective value can be considered as the current average within a bit of time in this charge circuit, can adopt during concrete the detection at the charge circuit small resistor of connecting, and use an electric capacity in parallel with small resistor, the voltage at these electric capacity two ends can not produce transition with quick variation of charging current, therefore can draw the charge circuit current effective value by the voltage of measuring the electric capacity two ends, concrete method of measurement is a techniques well known;
Dynamic energy-storage travelling wave tube, described dynamic energy-storage travelling wave tube is parallel between described solar panel and the storage battery; Described dynamic energy-storage travelling wave tube can be to adopt electric capacity etc. to have the element of energy-storage function;
Solar cell panel voltages testing circuit module, described solar cell panel voltages testing circuit module and solar panel are arranged in parallel, be used to detect the solar cell panel voltages size, solar cell panel voltages testing circuit module links to each other with discharge pulse width control circuit module with charging pulse width control circuit module respectively;
Charging pulse width control circuit module, described charging pulse width control circuit module one end link to each other with charging current testing circuit module and obtain the signal of charging current size; The other end links to each other with charge control switch module; Described charging pulse width control circuit module has following two effects, the one, instruct to charge control switch module according to current signal transmission from charging current testing circuit module, control its energising and disconnection, and then realize the adjustment of pulse charging electric current duty ratio size; The 2nd, according to voltage signal from the solar cell panel voltages detection module, when voltage signal is lower than lower limit, (judge darkness this moment) charge control switch module is disconnected, when voltage signal is higher than higher limit, (judge daybreak this moment) charge control switch module is connected;
Charge control switch module, described charge control switch module is arranged in the charge circuit, is used for adjusting according to instruction the on off state of charge circuit, thereby realizes the adjustment of pulse charging electric current duty ratio size;
The accumulator voltage detecting circuit module, described accumulator voltage detecting circuit module is arranged in the discharge loop, is used to detect the battery tension size;
Discharge pulse width control circuit module, described discharge pulse width control circuit module one end link to each other with the accumulator voltage detecting circuit module and obtain the signal of battery tension size; The other end links to each other with the discharge control switch module and sends instruction according to the voltage signal that receives; Described discharge pulse width control circuit module has following two effects, the one, instruct to the discharge control switch module according to voltage signal transmission from the accumulator voltage detecting circuit module, control its energising and disconnection, and then realize the adjustment of pulsed discharge electric current duty ratio size; The 2nd, according to voltage signal from the solar cell panel voltages detection module, when voltage signal is lower than lower limit, (judge darkness this moment) the discharge control switch module is connected, when voltage signal is higher than higher limit, (judge daybreak this moment) charge control switch module is disconnected;
The discharge control switch module, described discharge control switch module is arranged in the discharge loop, is used for adjusting according to instruction the on off state of discharge loop, and then realizes the adjustment of pulsed discharge electric current duty ratio size.
The present invention is in charging process, adopted charging current testing circuit module to detect the size of charging current, charging pulse width control circuit module is according to the size of charging current, the control charge control switch module disconnects and is closed, and then the charging current duty ratio size of adjustment charge circuit, the more little then duty ratio of charging current more little (referring to that promptly charge control switch module is closed more little with the time ratio that disconnects) makes that the size of the pulsed electric current that arrives storage battery is the charging effect charging current charging current of when charging current can be the operation of solar panel maximum power preferably (this charging effect) preferably.When bright and clear, when solar panel was in the maximum power operation, controlling the electric current duty ratio this moment was that 100%(refers to that promptly charge control switch module is closed always).Work as insufficient light, when solar cell panel voltages equaled the minimum charging voltage of storage battery, this moment, charging current reduced to 0, controlled the charging current duty ratio this moment and reduced to 0(and refer to that promptly charge control switch module disconnects always), stop charging.When light was comparatively sufficient, then the size according to electric current was adjusted into a suitable duty ratio.Specifically, in charging process, when charge control switch module disconnects, because dynamic energy-storage travelling wave tube in parallel in the circuit, the electric energy that this moment, solar panel produced will charge in the energy-storage travelling wave tube, when charge control switch module was closed, solar panel and dynamic energy-storage travelling wave tube charged a battery simultaneously, simultaneously, because the impedance of charge circuit is very little, charging current in short-term can be very big, makes charging effect better, and the voltage of solar panel and dynamic energy-storage travelling wave tube can descend, charging current descends, when it dropped to a certain degree, charge control switch module disconnected again, finished the charging of a pulse period.
When light after the darkness died down gradually, charging current can descend gradually, and the energy shortage of collecting up to solar panel is to charge a battery, at this moment, solar cell panel voltages is very low all the time, and the charging duty ratio is 0, charge circuit disconnects fully, starts discharge loop, opens light fixture.When daybreak in second day, sunray change once more bright after, the solar cell panel voltages detection module detects solar cell panel voltages has been enough to be charge in batteries, this moment disconnect discharge loop, close light fixture, and charge circuit reclosed.
Discharge loop is connected after darkness, battery discharging is started working light fixture, the present invention is in discharge process, adopted the accumulator voltage detecting circuit module to detect the size of battery tension, discharge pulse width control circuit module is according to the size of this discharge voltage, control discharge control switch module is adjusted discharge voltage duty ratio size, and the more little duty ratio of battery tension is more little, makes that the positive pulse end size of pulsed voltage at light fixture two ends is identical with the light fixture optimum operating voltage.When the accumulator electric-quantity abundance is saturation voltage, the control duty ratio is 100%, and is not enough and when be minimum operating voltage, controlling duty ratio is 0 when accumulator electric-quantity, when storage battery was between the two voltage, the duty ratio size can be set according to the flash-over characteristic of storage battery.Like this, can play the maintenance lamp brightness, the purpose that prolongs discharge time.
In sum, than prior art, the present invention has the following advantages:
1, charge efficiency height.The present invention adopts dynamic energy-storage travelling wave tube, dynamically energy-storage travelling wave tube plays the effect at the moment accumulation solar energy electric weight that charge circuit disconnects, satisfied the large current charge of pulse charging when switch connection, so just make when light is more weak, the pulsed electric current that arrives storage battery electric current during greater than common charging makes than still charging under the decreased light, has improved charge efficiency, avoid the use DC voltage booster circuit to boost simultaneously, improved capacity usage ratio.
2, the battery discharging time is long.The present invention adopts pulsed discharge, can keep lamp brightness, prolong discharge time, and light fixture lighting time is more of a specified duration.
3, the present invention has realized pulse charging, thus can also slow down the storage battery passivation effectively, and then prolonged storage battery useful life, make that the street lamp working life is longer.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of charging-discharging controller of solar street lamp comprises:
Charging current testing circuit module 5, described charging current testing circuit module 5 is arranged in the charge circuit, is used to detect the charging current size;
Dynamic energy-storage travelling wave tube 4, described dynamic energy-storage travelling wave tube 4 is parallel between described solar panel 1 and the storage battery 2;
Solar cell panel voltages testing circuit module 11, described solar cell panel voltages testing circuit module 11 is arranged in parallel with solar panel 1, be used to detect solar panel 1 voltage swing, solar cell panel voltages testing circuit module 11 links to each other with discharge pulse width control circuit module 9 with charging pulse width control circuit module 6 respectively;
Charging pulse width control circuit module 6, described charging pulse width control circuit module 6 one ends link to each other with charging current testing circuit module 5 and obtain the signal of charging current size; The other end links to each other with charging current pulse width control switch module 7 and sends instruction according to the current signal that receives;
Charge control switch module 7, described charge control switch module 7 is arranged in the charge circuit, is used for adjusting according to instruction the on off state of charge circuit, thereby realizes the adjustment of pulse charging electric current duty ratio size;
Accumulator voltage detecting circuit module 8, described accumulator voltage detecting circuit module 8 is arranged in the discharge loop, is used to detect storage battery 2 voltage swings;
Discharge pulse width control circuit module 9, described discharge pulse width control circuit module 9 one ends link to each other with accumulator voltage detecting circuit module 8 and obtain the signal of battery tension size; The other end links to each other with discharge control switch module 10 and sends instruction according to the voltage signal that receives;
Discharge control switch module 10, described discharge control switch module 10 is arranged in the discharge loop, is used for adjusting according to instruction the on off state of discharge loop, and then realizes the adjustment of pulsed discharge electric current duty ratio size.
During concrete enforcement, physical circuit is ripe prior art in described each module, and those skilled in the art need not to pay creative work and can implement under the instruction of the disclosed content of the present invention.
Claims (1)
1. charging-discharging controller of solar street lamp comprises:
Solar panel, being used for transform light energy is electric energy;
Storage battery, described storage battery and solar panel are connected to form charge circuit;
Light fixture, described light fixture and storage battery are connected to form discharge loop;
It is characterized in that, also comprise
Charging current testing circuit module, described charging current testing circuit module is arranged in the charge circuit, is used to detect the charging current size;
Dynamic energy-storage travelling wave tube, described dynamic energy-storage travelling wave tube is parallel between described solar panel and the storage battery;
Solar cell panel voltages testing circuit module, described solar cell panel voltages testing circuit module and solar panel are arranged in parallel, be used to detect the solar cell panel voltages size, solar cell panel voltages testing circuit module links to each other with discharge pulse width control circuit module with charging pulse width control circuit module respectively;
Charging pulse width control circuit module, described charging pulse width control circuit module one end link to each other with charging current testing circuit module and obtain the signal of charging current size; The other end links to each other with charge control switch module;
Charge control switch module, described charge control switch module is arranged in the charge circuit, is used for adjusting according to instruction the on off state of charge circuit, thereby realizes the adjustment of pulse charging electric current duty ratio size;
The accumulator voltage detecting circuit module, described accumulator voltage detecting circuit module is arranged in the discharge loop, is used to detect the battery tension size;
Discharge pulse width control circuit module, described discharge pulse width control circuit module one end link to each other with the accumulator voltage detecting circuit module and obtain the signal of battery tension size; The other end links to each other with the discharge control switch module and sends instruction according to the voltage signal that receives;
The discharge control switch module, described discharge control switch module is arranged in the discharge loop, is used for adjusting according to instruction the on off state of discharge loop, and then realizes the adjustment of pulsed discharge electric current duty ratio size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102783370A CN101924386A (en) | 2010-09-10 | 2010-09-10 | Charging-discharging controller of solar street lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102783370A CN101924386A (en) | 2010-09-10 | 2010-09-10 | Charging-discharging controller of solar street lamp |
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| CN101924386A true CN101924386A (en) | 2010-12-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155503A (en) * | 2014-06-05 | 2014-11-19 | 工业和信息化部邮电工业标准化研究所 | Testing circuit and testing method for voltage drop of charging loop of solar controller |
| TWI601326B (en) * | 2015-11-13 | 2017-10-01 | Battery pulse charge equalizer activator and its activation method | |
| CN107477506A (en) * | 2017-09-05 | 2017-12-15 | 朱建忠 | A kind of energy-conserving road lamp head of solar energy, faint light and civil power hybrid power supply |
| CN108934113A (en) * | 2018-04-09 | 2018-12-04 | 深圳市利思达光电科技有限公司 | A kind of intelligent work control method of Solar lamp |
| CN109802453A (en) * | 2018-11-23 | 2019-05-24 | 韶关市欧姆机电设备有限公司 | A kind of the intelligent charge management module and management method of photo-voltaic power supply |
| CN112737048A (en) * | 2021-01-04 | 2021-04-30 | 广东东庸光电科技有限公司 | Multi-solar-panel intelligent charging system |
| WO2024046180A1 (en) * | 2022-08-31 | 2024-03-07 | 中兴通讯股份有限公司 | Hybrid battery charging circuit, method, device, and storage medium |
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| CN101144580A (en) * | 2007-10-25 | 2008-03-19 | 雷宗平 | Energy-storage type solar energy LED lamp |
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Patent Citations (5)
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| CN101146394A (en) * | 2007-08-02 | 2008-03-19 | 安研 | Optical road lamp load control device |
| CN101144580A (en) * | 2007-10-25 | 2008-03-19 | 雷宗平 | Energy-storage type solar energy LED lamp |
| CN201182028Y (en) * | 2008-04-17 | 2009-01-14 | 保定市阳光盛原科技有限公司 | Solar intelligent LED street lamp controller |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155503A (en) * | 2014-06-05 | 2014-11-19 | 工业和信息化部邮电工业标准化研究所 | Testing circuit and testing method for voltage drop of charging loop of solar controller |
| TWI601326B (en) * | 2015-11-13 | 2017-10-01 | Battery pulse charge equalizer activator and its activation method | |
| CN107477506A (en) * | 2017-09-05 | 2017-12-15 | 朱建忠 | A kind of energy-conserving road lamp head of solar energy, faint light and civil power hybrid power supply |
| CN108934113A (en) * | 2018-04-09 | 2018-12-04 | 深圳市利思达光电科技有限公司 | A kind of intelligent work control method of Solar lamp |
| CN109802453A (en) * | 2018-11-23 | 2019-05-24 | 韶关市欧姆机电设备有限公司 | A kind of the intelligent charge management module and management method of photo-voltaic power supply |
| CN112737048A (en) * | 2021-01-04 | 2021-04-30 | 广东东庸光电科技有限公司 | Multi-solar-panel intelligent charging system |
| WO2024046180A1 (en) * | 2022-08-31 | 2024-03-07 | 中兴通讯股份有限公司 | Hybrid battery charging circuit, method, device, and storage medium |
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Application publication date: 20101222 |