CN202738220U - Intelligent solar LED street lamp controller - Google Patents

Intelligent solar LED street lamp controller Download PDF

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Publication number
CN202738220U
CN202738220U CN2012204521714U CN201220452171U CN202738220U CN 202738220 U CN202738220 U CN 202738220U CN 2012204521714 U CN2012204521714 U CN 2012204521714U CN 201220452171 U CN201220452171 U CN 201220452171U CN 202738220 U CN202738220 U CN 202738220U
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triode
resistance
power supply
base stage
copped wave
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Expired - Fee Related
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CN2012204521714U
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Chinese (zh)
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谢永桢
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses an intelligent solar LED lamp street lamp controller, which comprises an MCU system controlling module, a storage battery charge controlling module, an LED load controlling module and a circuit power supply module. A highly-efficient, rapid, accurate and safe intelligent charge controller is used for a storage battery, to prolong the service life of the storage battery; according to the capacity of the storage battery, stepless light modulation for LED lamps can be realized through a PWM power control function, so that the LED lamps work in an ideal pulse state, the efficiency is high, and the energy saving effects are obvious; and the intelligent solar LED lamp street lamp controller of the utility model also has the advantages including environmental protection, safety, convenient installation, good usage effects, and small maintenance load, which can be widely applied to illumination in places including roads and gardens.

Description

A kind of intelligent solar LED controller for road lamp
Technical field:
The utility model relates to a kind of solar recharging control technology, is specifically related to a kind of solar panel that utilizes and charges a battery, and automatically regulate the intelligent solar LED controller for road lamp of luminous power according to battery capacity.
Background technology:
Large positive energy streetlight need not cable laying with it, does not consume the advantages such as conventional energy resource and has obtained extensive approval.Yet solar street light also exists some problems to cause its high expensive, the problems such as reliability is unstable often just needed to change less than 1 year such as battery, had not only improved the expense of later maintenance, and increased client's consumer cost, also caused the wasting of resources.Next is that solar energy belongs to the unstable energy, and Energy distribution is uneven, and summer, energy was sufficient, but street lamp is short service time, and winter, effective light application time was short, but street lamp is long service time, greatly reduce reliability of operation, its reason mainly is subject to the impact of solar street lamp controller performance.Controller for solar is the core in the solar energy photovoltaic system; mainly finish the open and close control of charge and discharge, light modulation and street lamp to storage battery; and overcharging, when the situations such as overdischarge, overload occur system carried out in time and effectively protection; guarantee lighting hours; guarantee reliability; effectively extending battery life reduces cost.
The utility model content:
The utility model is to overcome that present solar LED street lamp is existing fails to take full advantage of solar cell; the protection of storage battery is not fully made the lost of life of storage battery; the low problems such as poor reliability that cause whole road lamp system so that meet continuously overcast and rainy can't work of opto-electronic conversion utilance provide a kind of intelligent solar LED controller for road lamp.
The new technical scheme of this practicality is: a kind of intelligent solar LED controller for road lamp, comprise the MCU system control module, the Battery charge controller module, the LED load control module, the circuit power module, described charge in batteries module comprises charging circuit and control circuit, the positive pole with solar panel in the charging circuit is connected with the drain electrode of copped wave pipe Q1, the source electrode of copped wave pipe Q1 is connected with battery positive voltage by anti-reverse charging diode D2, and the negative pole of solar panel is connected with battery terminal negative; The input control end of the control circuit in the control circuit is connected with the base stage of triode Q3, the collector electrode of triode Q3 is connected with power supply U2, the emitter of triode Q3 is connected with the base stage of triode Q2 by resistance R 3, and the collector electrode of triode Q2 is connected with the grid of copped wave pipe Q1 by resistance R 2; The collector electrode of triode Q2 is connected with ground, and the base stage of triode Q2 is connected with ground by resistance R 4; Series resistor R5 between the collector electrode of triode Q3 and the base stage, the base stage of triode Q3 is connected with ground by resistance R 6, and the emitter of triode Q3 is connected with ground by resistance R 7.
Described LED load control module comprises optoelectronic switch Q5 and copped wave pipe Q8, wherein, the input anode of optoelectronic switch Q5 is connected with power supply U1 by resistance R 10, input cathode is connected with the collector electrode of triode Q4, the emitter base of triode Q4, base stage is connected with the PWM control end of MCU system control module by resistance R 14; The output head anode of described optoelectronic switch Q5 is connected with power supply U1 by resistance R 11, negative pole of output end is connected with the grid of copped wave pipe Q8 by resistance R 12, the drain electrode of copped wave pipe Q8 is connected with LED lamp group negative pole, and LED lamp group is anodal to be connected with battery positive voltage by resistance R 15; The source electrode of copped wave pipe Q8 is connected with ground, is parallel with resistance R 12 and reaction diode D4 between the grid of copped wave pipe Q8 and the source electrode; The base stage of triode Q4 is connected with power supply U1 by resistance R 8, and this base stage is connected with ground by resistance R 9 simultaneously.
The positive input of described circuit power module is connected with the input of 78LXX series pressurizer Q6 by diode D5, and the output of this 78LXX series pressurizer Q6 is power supply U1; 78LXX series pressurizer Q6 output is connected with 78LXX series pressurizer Q7 input, and 78LXX series pressurizer Q6 output is power supply U2; Power supply U1 and U2 are connected with ground with C2 by capacitor C 1 respectively.
The utility model adopts chopped mode PWM charging principle, detects the charging end voltage of storage battery, the accumulator voltage that detection is obtained and set point voltage ratio, if less than given voltage, the chopper all-pass charges a battery rapidly; When the voltage of storage battery during greater than given voltage, then according to the duty ratio of ratio Modulating Power pipe, charging enters the trickle charge stage, improves charge characteristic, prevents from overcharging; Adopt simultaneously timesharing, dividing potential drop to control, according to the different time sections at night, people are to the different requirements of illumination, the input power of control solar LED street lamp, and according to solar cell endergonic size on daytime, the power output of control solar LED street lamp is adjusted the LED load automatically according to the residual capacity of storage battery, and the demand of illumination is carried out brightness adjustment control for LED and can further be reached energy-conservation effect.Reach to design with minimum cost and can satisfy under the bad weather condition people to the basic demand of solar LED street lamp.Finish hardware circuit design, algorithm research and software control, realized the scientific management to storage battery.
Beneficial effect is: controller of the present utility model comprises the control of MCU system, Battery charge controller, LED load control, four modules of circuit power.Controller can be by the detection to battery capacity, different with setting-up time according to battery capacity, load LED lamp is operated under the corresponding power, control needs according to solar street light, solar street lamp controller is designed from hardware configuration and software development aspect, this controller have antijamming capability strong, be convenient to the control characteristics.Intelligent solar LED controller for road lamp of the present utility model has environmental protection, safe, easy for installation, the advantage such as result of use is good, maintenance is little, can be widely used in the illuminations such as road, garden.
Description of drawings:
Fig. 1 is control circuit functional-block diagram of the present utility model;
Fig. 2 is the program flow diagram that discharges and recharges of the utility model embodiment;
Fig. 3 is the LED load control circuit figure of the utility model embodiment;
Fig. 4 is the power module circuitry figure of the utility model embodiment;
Fig. 5 is the storage battery charge controller circuit diagram of the utility model embodiment.
Embodiment:
Embodiment 1:LED Solar Street Lighting System as shown in Figure 1, can find out that it is comprised of solar cell, intelligent solar LED controller for road lamp, storage battery and LED street lamp four parts, wherein solar cell is used for solar energy is turned mutual electric energy, be that the moment on daytime solar cell charges a battery, and can judge bright degree according to the size of solar cell both end voltage.Namely judge darkness and daybreak from the size of solar cell voltage.Storage battery is the deposit energy device of whole solar energy system, and solar cell charges a battery during daytime, and evening or overcast and rainy system and load electricity consumption are provided by storage battery.Solar street lamp controller is of paramount importance parts in the Solar Street Lighting System, and the quality of its Functional Design has determined the quality of a Solar Street Lighting System ruuning situation.The function that controller for road lamp need to be realized has: according to sun brightness; disconnect the LED street lamp daytime and charge a battery, to street lamp power supply, road lamp power supply, and can carry out at times the power adjustment by storage battery evening; prevent from accumulator super-charge and cross putting, have short-circuit protection and reversal connection protection function etc.
Wherein, intelligent solar LED controller for road lamp comprises the MCU system control module, Battery charge controller module, LED load control module, circuit power module.
Referring to Fig. 4, the positive input of described circuit power module is connected with the input of 78LXX series pressurizer Q6 by diode D5, and the output of this 78LXX series pressurizer Q6 is power supply U1; 78LXX series pressurizer Q6 output is connected with 78LXX series pressurizer Q7 input, and 78LXX series pressurizer Q6 output is power supply U2; Power supply U1 and U2 are connected with ground with C2 by capacitor C 1 respectively.
MCU system control module referring to Fig. 2: controller can detect current state automatically, and at first detecting current state according to the solar cell both end voltage is daytime or night, and then selection is charge mode or discharge mode.Voltage according to storage battery two two ends in charge mode is selected different charge modes, when the voltage that detects storage battery during less than 13.5V, switching tube is connected all the time, namely take the all-pass charging modes, if take the pulse width modulation mode charging when detecting battery tension greater than 13.5V and less than 14.4V, along with the increase of battery tension, pulsewidth constantly narrows down, until accumulator voltage is when rising to 14.4V, the pulsewidth calibration is 0, stops charging.Pulse width modulation mode is realized by software.
In discharge process referring to Fig. 3, if adopt full light mode to power to the load when detecting battery tension greater than 12.3V and less than 14.4V, export narrow pulse width signal during less than 12.3V through triode Q4 control field effect transistor optoelectronic switch Q5 when voltage, make LED lamp group be operated in that Morning Has Broken under the small-power state.
Described charge in batteries module comprises charging circuit and control circuit, referring to Fig. 5.Positive pole with solar panel in the charging circuit is connected with the drain electrode of copped wave pipe Q1, and the source electrode of copped wave pipe Q1 is connected with battery positive voltage by anti-reverse charging diode D2, and the negative pole of solar panel is connected with battery terminal negative; The input control end of the control circuit in the control circuit is connected with the base stage of triode Q3, the collector electrode of triode Q3 is connected with power supply U2, the emitter of triode Q3 is connected with the base stage of triode Q2 by resistance R 3, and the collector electrode of triode Q2 is connected with the grid of copped wave pipe Q1 by resistance R 2; The collector electrode of triode Q2 is connected with ground, and the base stage of triode Q2 is connected with ground by resistance R 4; Series resistor R5 between the collector electrode of triode Q3 and the base stage, the base stage of triode Q3 is connected with ground by resistance R 6, and the emitter of triode Q3 is connected with ground by resistance R 7.
The charge in batteries module has adopted chopped mode PWM principle, and in minute two stages, the phase I, second stage was PWM stage (the trickle charge stage) in order to fill the stage soon.
Circuit adopts chopped mode PWM charging principle, detects the charging end voltage of storage battery, the accumulator voltage that detection is obtained and set point voltage ratio, if less than given voltage, the chopper all-pass charges a battery rapidly; When the voltage of storage battery during greater than given voltage, then according to the duty ratio of ratio Modulating Power pipe, charging enters the trickle charge stage, improves charge characteristic, prevents from overcharging.
The copped wave pipe Q1 (switching tube) of charging control selects POWER MOFFETIRF4905.This pipe is the MOFFET pipe of P raceway groove, has little conducting resistance, RON=20m Ω, and (25 ℃ of condition temperature, VGS=-10V), switching speed is fast, has good switch performance for maximum on state current ID=74A.When this pipe gate source voltage VGS<-during 8.0V, this pipe just has good switch performance as switching tube.Because this pipe for the P raceway groove, is easy to reference voltage is selected on the point, then the reliability of system can obtain larger raising again.
(1) design of the drive circuit of IRF4905 MOFFET pipe
In circuit theory diagrams shown in Figure 5, D2 is Schottky diode, and wherein forward conduction voltage drop is 0.3V, and maximum On current is 20A, satisfies system requirements fully.The effect of this diode is anti-reverse charging, and namely when battery tension was higher than solar cell voltage, the diode cut-off had prevented that storage battery is to the solar cell reverse charge.
D3 is a protection diode that prevents the accumulator anode and cathode reversal connection, and namely when reverse connection of accumulator, D3 forward conduction, electric current are very large, and fusible link can blow, and circuit disconnects, thereby has protected controller and storage battery, has improved the reliability of system.
(2) charging process
MCU system control module (single-chip microcomputer P2.0 mouth) provides the control signal of charging, be P2.0=1, NPN triode Q3 conducting, because this triode works in the emitter-base bandgap grading output state, it launches very high level, NPN triode Q2 conducting, because the effect of voltage-stabiliser tube D1, so that the gate source voltage clamper of IRF4905 pipe is at-10V, IRF4905 manages conducting, and solar cell is to charge in batteries.Otherwise front the two poles of the earth triode all ends VGS=0V, and IRF4905 manages disconnection, and solar cell can not be to charge in batteries.
Referring to Fig. 3, described LED load control module comprises optoelectronic switch Q5 and copped wave pipe Q8, wherein, the input anode of optoelectronic switch Q5 is connected with power supply U1 by resistance R 10, input cathode is connected with the collector electrode of triode Q4, the emitter base of triode Q4, base stage is connected with the PWM control end of MCU system control module by resistance R 14; The output head anode of described optoelectronic switch Q5 is connected with power supply U1 by resistance R 11, negative pole of output end is connected with the grid of copped wave pipe Q8 by resistance R 12, the drain electrode of copped wave pipe Q8 is connected with LED lamp group negative pole, and LED lamp group is anodal to be connected with battery positive voltage by resistance R 15; The source electrode of copped wave pipe Q8 is connected with ground, is parallel with resistance R 12 and reaction diode D4 between the grid of copped wave pipe Q8 and the source electrode; The base stage of triode Q4 is connected with power supply U1 by resistance R 8, and this base stage is connected with ground by resistance R 9 simultaneously.
In order to adopt different brightness in the different moment at night, to reach the purpose of saves energy, design has adopted pwm power control function that the LED light fixture is realized stepless dimming.Principle as shown in Figure 3.Wherein MCU system control module (single-chip microcomputer P0.6 mouth) provides control signal, namely during P0.6=1, and the triode conducting, optocoupler is closed, metal-oxide-semiconductor conducting Q8, storage battery is to street lamp power supply, road lamp power supply.When electric weight deficiency or daytime, control end output low level signal cuts off current supply circuit.

Claims (3)

1. intelligent solar LED controller for road lamp, comprise the MCU system control module, the Battery charge controller module, the LED load control module, the circuit power module is characterized in that: described charge in batteries module comprises charging circuit and control circuit, and the positive pole with solar panel in the charging circuit is connected with the drain electrode of copped wave pipe Q1, the source electrode of copped wave pipe Q1 is connected with battery positive voltage by anti-reverse charging diode D2, and the negative pole of solar panel is connected with battery terminal negative; The input control end of the control circuit in the control circuit is connected with the base stage of triode Q3, the collector electrode of triode Q3 is connected with power supply U2, the emitter of triode Q3 is connected with the base stage of triode Q2 by resistance R 3, and the collector electrode of triode Q2 is connected with the grid of copped wave pipe Q1 by resistance R 2; The collector electrode of triode Q2 is connected with ground, and the base stage of triode Q2 is connected with ground by resistance R 4; Series resistor R5 between the collector electrode of triode Q3 and the base stage, the base stage of triode Q3 is connected with ground by resistance R 6, and the emitter of triode Q3 is connected with ground by resistance R 7.
2. intelligent solar LED controller for road lamp according to claim 1, it is characterized in that: described LED load control module comprises optoelectronic switch Q5 and copped wave pipe Q8, wherein, the input anode of optoelectronic switch Q5 is connected with power supply U1 by resistance R 10, input cathode is connected with the collector electrode of triode Q4, the emitter base of triode Q4, base stage is connected with the PWM control end of MCU system control module by resistance R 14; The output head anode of described optoelectronic switch Q5 is connected with power supply U1 by resistance R 11, negative pole of output end is connected with the grid of copped wave pipe Q8 by resistance R 12, the drain electrode of copped wave pipe Q8 is connected with LED lamp group negative pole, and LED lamp group is anodal to be connected with battery positive voltage by resistance R 15; The source electrode of copped wave pipe Q8 is connected with ground, is parallel with resistance R 12 and reaction diode D4 between the grid of copped wave pipe Q8 and the source electrode; The base stage of triode Q4 is connected with power supply U1 by resistance R 8, and this base stage is connected with ground by resistance R 9 simultaneously.
3. intelligent solar LED controller for road lamp according to claim 1, it is characterized in that: the positive input of described circuit power module is connected with the input of 78LXX series pressurizer Q6 by diode D5, and the output of this 78LXX series pressurizer Q6 is power supply U1; 78LXX series pressurizer Q6 output is connected with 78LXX series pressurizer Q7 input, and 78LXX series pressurizer Q6 output is power supply U2; Power supply U1 and U2 are connected with ground with C2 by capacitor C 1 respectively.
CN2012204521714U 2012-09-07 2012-09-07 Intelligent solar LED street lamp controller Expired - Fee Related CN202738220U (en)

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Application Number Priority Date Filing Date Title
CN2012204521714U CN202738220U (en) 2012-09-07 2012-09-07 Intelligent solar LED street lamp controller

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Application Number Priority Date Filing Date Title
CN2012204521714U CN202738220U (en) 2012-09-07 2012-09-07 Intelligent solar LED street lamp controller

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103347348A (en) * 2013-07-23 2013-10-09 舒治成 Solar LED streetlight controller
CN106505540A (en) * 2016-12-20 2017-03-15 奉化市慧光太阳能科技有限公司 Battery lamp load short-circuit protection circuit
CN109379818A (en) * 2018-10-17 2019-02-22 雷宗平 A kind of wisdom street lamp energized by software

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103347348A (en) * 2013-07-23 2013-10-09 舒治成 Solar LED streetlight controller
CN103347348B (en) * 2013-07-23 2015-02-25 舒治成 Solar LED streetlight controller
CN106505540A (en) * 2016-12-20 2017-03-15 奉化市慧光太阳能科技有限公司 Battery lamp load short-circuit protection circuit
CN109379818A (en) * 2018-10-17 2019-02-22 雷宗平 A kind of wisdom street lamp energized by software

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C17 Cessation of patent right
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Granted publication date: 20130213

Termination date: 20130907