CN203632903U - Solar street lamp controller - Google Patents
Solar street lamp controller Download PDFInfo
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- CN203632903U CN203632903U CN201220739708.5U CN201220739708U CN203632903U CN 203632903 U CN203632903 U CN 203632903U CN 201220739708 U CN201220739708 U CN 201220739708U CN 203632903 U CN203632903 U CN 203632903U
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Abstract
The utility model discloses a solar street lamp controller. The solar street lamp controller mainly comprises a solar panel, a storage battery pack, a load, a MCU computer main controller, a PWM power drive circuit, a temperature sensor, an output protection circuit, a current sampling circuit and the like. The controller is a new-generation multifunctional low-cost solar power (street lamp) controller, represents the latest development level of photovoltaic technology, is specially designed for a small solar independent power generation system, and automatically controls the charging and discharging process. The charging process of the PWM battery of the controller is optimized, the service life of the battery can be prolonged, and the performances of the system are improved. With the overall self-testing function and the electronic protection function, damages to the controller caused by installation errors and system faults can be avoided. The solar street lamp controller is mainly applied to a system where the load needs automatic power supply for a long time, and the load switch is controlled manually.
Description
Technical field
The utility model relates to a kind of solar street lamp controller, specifically, relates to a kind of intelligent solar road lamp controller that storage battery is discharged and recharged to control.
Background technology
Energy problem is one of significant problem of the world today, the energy is the important substance guarantee of economy and social development, energy resource consumption simultaneously can have an immense impact on to environment again, photovoltaic generation is the current major way that utilizes solar energy, photovoltaic generation has the advantages such as inexhaustible and pollution-free, has one of development prospect the most widely at present in the numerous applications of China.
At present, on market, have a lot of solar charging controllers, but there are the following problems:
1, some use the simple charge controller of controlling voltage, in the time that battery tension rises to overcharged voltage (now storage battery is not really full of completely), controller disconnects charge circuit automatically, but due to the effect of accumulator internal resistance, disconnect after charge circuit, the voltage of storage battery can decline immediately.And connect and disconnect with after electric loading when charge circuit, equally due to accumulator internal resistance, the voltage of storage battery can rise immediately.So repeatedly, charge controller very easily produces vibration, not only makes controller cisco unity malfunction, but also easily damages storage battery.In the time charging a battery, large electric current can cause energy loss, and can produce a large amount of gas in the charging later stage simultaneously, the life of storage battery is shortened, but just need for a long time with low current charge, cannot accomplish quick charge, and charging current difference is also different to the recovery of battery capacity.
2, existing simple type solar charging controller is after storage battery is full of; for protection storage battery, the both positive and negative polarity of solar panel is carried out to short circuit, can cause like this joint temperature of solar panel array too high; easily damage solar panel, the useful life of reducing solar panel.
3, some solar charging controllers, in charge circuit, adopt the mode that seals in diode to prevent reversal connection and prevent that night, battery current poured in down a chimney, and in the time of charging, the conduction loss of diode is very large, has reduced the efficiency of controller.
This controller aims at solar DC electric power system, the design of solar DC road lamp system, has used the intelligent control of special computer chip.Controller is mainly used to discharging and recharging of storage battery to control, and avoids overcharging and over-discharge can that load running causes of solar panel energy.Controller adopts one-touch touch-switch, completes all operations and setting.There is overtemperature, short circuit, overload, unique anti-reverse protection, be full of, cross put automatically shut down, the global function safeguard measure such as recovery, detailed charging indication, battery condition, load and various faulty indication.This controller parameter that the terminal voltage to storage battery, discharging current, ambient temperature etc. relate to battery capacity by computer chip is sampled, calculate by special purpose model, what realization met battery characteristics discharges and recharges control, temperature self-compensation correction charging voltage, and adopt efficient PWM serial connection charge pattern, guarantee that battery-operated, at best state, extends the useful life of storage battery greatly.There is multiple-working mode, output mode selection, meet the various needs of user.
Utility model content
The technical problem that the utility model solves is to have solved the shortcoming that existing charge efficiency is not high, and a kind of efficient pulse current charge mode is provided, and circuit design is simple, cost performance height and the good solar street lamp controller of the stability of a system.
The utility model object realizes by following technical measures.
A kind of solar street lamp controller; be used for controlling solar cell to charge in batteries and power to the load, it is characterized in that: comprise solar panel 1., input lightning protection 2., solar cell panel voltages sampling 3., battery tension sampling 4., pwm power drive circuit 5., MCU computer main controller 6., temperature sensor 7., output protection and power drive 3., current sensor 9., fuse 10., batteries
, charging control loop and discharge control loop;
Solar panel positive pole, the positive pole of storage battery and the positive pole of load 1. connects together, and is connected to transient voltage suppressor diode TVS 2. between the positive pole of solar panel and negative pole, and controller is carried out to anti-lightning strike protection or instantaneous overvoltage protection;
1. solar panel is connected in batteries by power tube Q1 and two MOSFET that are connected in series of power tube Q2, and batteries connects output by power tube Q3 again and is connected with external loading;
3. solar cell panel voltages samples, 4. battery tension samples, 7. temperature sensor is sent to MCU computer main controller with current sensor signal 9. and 6. processes, and 8. 5. MCU computer main controller controlled with output protection and power drive pwm power drive circuit after 6. processing.
Further, the source S of power tube Q1 is connected on solar panel negative terminal 1., and the drain D of power tube Q1 is connected with the drain D of power tube Q2, and 10. the source S of power tube Q2 is connected with the negative pole of storage battery by fuse, batteries
negative pole be 10. 9. connected with current sensor by fuse, 9. current sensor links together with the source S of power tube Q3, the drain D of power tube Q3 is connected with the negative pole of output external loading again, and anode 1. of solar panel and the anode of storage battery and the anode of outside output loading link together.
Further, the switch control circuit that charging control loop adopts power tube Q1 and power tube Q2 to be composed in series charges to batteries, the discharge loop of the switch control batteries being connected to form by power tube Q3 and load.
Further, 3. solar cell panel voltages sampling samples to solar panel voltage 1. by electric resistance partial pressure, by precision resistance dividing potential drop, accumulator battery voltage is sampled, 7. ambient temperature and controller self temperature are detected by temperature sensor, 9. current sensor detects the load current of output.
Further, the detection of solar cell panel voltages, battery tension detect and detect with ambient temperature is all by being connected with single-chip microcomputer after external testing circuit, and single-chip microcomputer is ATMEGA88PA.
Further, in solar street lamp controller, load control comprises that a MOSFET power tube and sampling resistor couple together load and controller, by the short circuit of sampling resistor control load or overload protection.
Compared with prior art, remarkable benefit of the present utility model is embodied in:
1) adopt precision resistance dividing potential drop to carry out voltage sample to solar panel, storage battery, circuit structure is simple, and sampled result is accurate.
2) be connected in series and charge and anti-reaction with MOSFET power tube, adopt pwm pulse mode to charge to storage battery, the charge efficiency of whole controller is improved, reduce switching loss simultaneously.
3) by thermo-sensitive resistor, ambient temperature is sampled, reduced the cost of controller, by sampled value, the charging voltage of storage battery is compensated simultaneously, improved the useful life of storage battery.
4) adopt precision resistance as sampling resistor, the electric current of discharge loop has been sampled, thereby the fault such as overload, short circuit of load has been protected, improved the safety and reliability of controller.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of charging control circuit of the present utility model;
Fig. 3 is the schematic diagram of charge/discharge control circuit of the present utility model;
Fig. 4 is voltage sampling circuit schematic diagram of the present utility model;
Fig. 5 is ambient temperature sampled voltage schematic diagram of the present utility model;
Fig. 6 is pwm power driving circuit principle figure of the present utility model.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
A kind of solar street lamp controller embodiment illustrated in fig. 1 is made up of charge control loop and discharge control loop, comprise solar panel 1., input lightning protection 2., solar cell panel voltages sampling, battery tension sampling, pwm power drive circuit, MCU computer main controller, temperature sensor, output protection and power drive, current sensor 9., fuse 10., batteries
etc. several part compositions.
A kind of solar street lamp controller charging control loop embodiment illustrated in fig. 2 is sampled by solar cell panel voltages, and 3. 6. sampling is transferred to MCU computer main controller after 4. respectively the voltage of solar panel and storage battery being sampled with battery tension; By computing 6. of MCU computer main controller output pwm control signal power ratio control pipe Q1 and power tube Q2, storage battery is carried out the pulse charging mode of different phase; Power tube Q1 and power tube Q2 are connected in series, its connected mode as shown in Figure 1, the source S of power tube Q1 is connected on solar panel negative terminal 1., and the drain D of power tube Q1 is connected with the drain D of power tube Q2, and 10. the source S of power tube Q2 is connected with the negative pole of storage battery by fuse; Wherein power tube Q2 prevents that batteries charges to solar panel, and what traditional circuit was used is the anti-reaction of diode, and power tube Q2 adopts MOSFET can reduce the power loss of circuit here, improves the charge efficiency of complete machine.
A kind of solar street lamp controller control of discharge embodiment illustrated in fig. 3 has three kinds of control modes, be respectively manual mode, timing mode, when two stage mode control storage battery to load supplying.Manual mode is three kinds of patterns that electric discharge is set by the button of controller, in the time being set to manual mode, 6. send signal by pushing button to MCU computer main controller, MCU computer main controller judges that now the state of storage battery judges whether to open or switching off load after 6. receiving push button signalling again, by the state that changes a load next time.Timing mode is to be set under timing mode by button, its load service time can be set by user oneself, load service time need to be sampled and 3. 6. solar cell panel voltages sampling be inputed to MCU computer main controller by solar cell panel voltages, 6. MCU computer main controller judges according to the voltage threshold setting again, when the magnitude of voltage of the solar panel sampling lower than set threshold voltage time think night, now 6. output signal to the gate pole control Q3 conducting of power tube Q3 by MCU computer main controller, open load.When two, stage mode is set to stage mode when two by button, sample and 3. 6. solar cell panel voltages sampling is inputed to MCU computer main controller by solar cell panel voltages, 6. MCU computer main controller judges according to the voltage threshold setting again, when the magnitude of voltage of the solar panel sampling is lower than thinking that arrive night when threshold voltage the night of setting, now 6. output signal to the gate pole control Q3 conducting of power tube Q3 by MCU computer main controller, open load, after a period of time, close load, before daybreak, opened again load a period of time, when the magnitude of voltage of the solar panel sampling thinks that arrive daytime higher than the daybreak of setting when threshold voltage, close load.The darkness of controller meeting automatic learning reality is to the duration of daybreak, to adapt to the variation in season.
A kind of solar street lamp controller voltage sampling circuit embodiment illustrated in fig. 4, passes through precision resistance dividing potential drop post-sampling in the analog input channel of single-chip microcomputer in figure, obtain respectively the voltage of solar panel and the voltage of batteries by Fig. 4 circuit.
The temperature sensing circuit of a kind of solar street lamp controller embodiment illustrated in fig. 5, adopt thermo-sensitive resistor 7. to carry out testing environment temperature as temperature sensor, according to the temperature characterisitic of storage battery, according to different ambient temperatures, the charging voltage of storage battery is carried out to suitable voltage compensation, improve like this useful life of storage battery, utilize this circuit simple and practical, reduced the cost of whole controller.
The pwm power drive circuit of a kind of solar street lamp controller embodiment illustrated in fig. 6, the drive circuit of controller adopts and recommends the way of output, makes conduction loss little, and output transfer power improves.
Whole solar street lamp controller device detailed operation principle is as follows:
When solar irradiation is mapped on solar panel, solar panel absorbs luminous energy and converts thereof into electric energy, charge a battery by solar street lamp controller again, by conversion power storage in storage battery, in the time of night, by solar street lamp controller, load is discharged again, solar street lamp controller mainly manages the charging and discharging of storage battery exactly, this controller also has comprehensive self-test function and automatic Protection and can avoid causing controller to damage due to setup error and the system failure simultaneously, controller has surge, overtemperature, overcharge, cross and put, overload, short-circuit protection and unique full-automatic safeguard measure such as anti-reverse grade, more than protection does not all damage any parts, make full use of the useful life of the energy and prolongation storage battery.
Below the utility model is described in detail; the above; it is only the preferred embodiment of the utility model; when not limiting the utility model practical range; all any modifications of doing within spirit of the present utility model and principle, be equal to replace or improve, within all should being included in protection range of the present utility model.
Claims (4)
1. a solar street lamp controller; be used for controlling solar cell to charge in batteries and power to the load, it is characterized in that: comprise solar panel 1., input lightning protection 2., solar cell panel voltages sampling 3., battery tension sampling 4., pwm power drive circuit 5., MCU computer main controller 6., temperature sensor 7., output protection and power drive 8., current sensor 9., fuse 10., batteries
, charging control loop and discharge control loop;
Solar panel positive pole, the positive pole of storage battery and the positive pole of load 1. connects together, and is connected to transient voltage suppressor diode TVS 2. between the positive pole of solar panel and negative pole, and controller is carried out to anti-lightning strike protection or instantaneous overvoltage protection;
1. solar panel is connected in batteries by power tube Q1 and two MOSFET that are connected in series of power tube Q2, and batteries connects output by power tube Q3 again and is connected with external loading;
3. solar cell panel voltages samples, 4. battery tension samples, 7. temperature sensor is sent to MCU computer main controller with current sensor signal 9. and 6. processes, and 8. 5. MCU computer main controller controlled with output protection and power drive pwm power drive circuit after 6. processing.
2. a kind of solar street lamp controller according to claim 1, it is characterized in that: the source S of power tube Q1 is connected on solar panel negative terminal 1., the drain D of power tube Q1 is connected with the drain D of power tube Q2,10. the source S of power tube Q2 is connected with the negative pole of storage battery by fuse, batteries
negative pole be 10. 9. connected with current sensor by fuse, 9. current sensor links together with the source S of power tube Q3, the drain D of power tube Q3 is connected with the negative pole of output external loading again, and anode 1. of solar panel and the anode of storage battery and the anode of outside output loading link together.
3. a kind of solar street lamp controller according to claim 1, it is characterized in that: the switch control circuit that charging control loop adopts power tube Q1 and power tube Q2 to be composed in series charges to batteries, the discharge loop of the switch control batteries being connected to form by power tube Q3 and load.
4. a kind of solar street lamp controller according to claim 1, it is characterized in that: 3. solar cell panel voltages sampling samples to solar panel voltage 1. by electric resistance partial pressure, by precision resistance dividing potential drop, accumulator battery voltage is sampled, 7. ambient temperature and controller self temperature are detected by temperature sensor, 9. current sensor detects the load current of output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220739708.5U CN203632903U (en) | 2012-12-31 | 2012-12-31 | Solar street lamp controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220739708.5U CN203632903U (en) | 2012-12-31 | 2012-12-31 | Solar street lamp controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632903U true CN203632903U (en) | 2014-06-04 |
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ID=50819338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220739708.5U Expired - Fee Related CN203632903U (en) | 2012-12-31 | 2012-12-31 | Solar street lamp controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123533A (en) * | 2016-11-30 | 2018-06-05 | 镇江石鼓文智能化系统开发有限公司 | A kind of solar charging controller system |
| CN108123532A (en) * | 2016-11-30 | 2018-06-05 | 镇江港诚电力设备有限公司 | A kind of solar charging controller system |
| CN108944470A (en) * | 2018-07-06 | 2018-12-07 | 李可 | It is small-sized across solar energy unmanned plane and its energy management method round the clock |
-
2012
- 2012-12-31 CN CN201220739708.5U patent/CN203632903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123533A (en) * | 2016-11-30 | 2018-06-05 | 镇江石鼓文智能化系统开发有限公司 | A kind of solar charging controller system |
| CN108123532A (en) * | 2016-11-30 | 2018-06-05 | 镇江港诚电力设备有限公司 | A kind of solar charging controller system |
| CN108944470A (en) * | 2018-07-06 | 2018-12-07 | 李可 | It is small-sized across solar energy unmanned plane and its energy management method round the clock |
| CN108944470B (en) * | 2018-07-06 | 2024-04-16 | 李可 | Small day and night-crossing solar unmanned aerial vehicle and energy management method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuhan Jintian New Energy Technology Co., Ltd. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Wuhan Jintian New Energy Technology Co., Ltd. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Wuhan Jintian new energy Polytron Technologies Inc Document name: Notification that Application Deemed not to be Proposed |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuhan Jintian New Energy Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| 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: 20140604 Termination date: 20151231 |