CN203352868U - Intelligent photovoltaic controller for solar LED lamp - Google Patents
Intelligent photovoltaic controller for solar LED lamp Download PDFInfo
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- CN203352868U CN203352868U CN2013202906469U CN201320290646U CN203352868U CN 203352868 U CN203352868 U CN 203352868U CN 2013202906469 U CN2013202906469 U CN 2013202906469U CN 201320290646 U CN201320290646 U CN 201320290646U CN 203352868 U CN203352868 U CN 203352868U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses an intelligent photovoltaic controller for a solar LED lamp, and the controller comprises an MCU (master control unit), a photocell input voltage sampling unit, a voltage stabilization working power supply, a cell voltage sampling unit, a display unit, a button input unit, an LED load output control unit, a short circuit protection unit, an energy storage cell charging control and protection unit, and a temperature sampling unit. A working mode is set through a button and digital display. The controller has a function of automatic identification of a voltage of an energy storage cell. After the voltage of the energy storage cell is automatically identified, a corresponding mode is called to carry out the charging and discharging management.
Description
Technical field
The utility model relates to the solar energy photovoltaic system control technology, particularly designs a kind of intelligent solar LED light fixture photovoltaic controller.
Background technology
In world's energy starved today, the lighting technology of novel energy-saving and environment friendly extensively starts application, and particularly the application of the solar energy photovoltaic system of the compositions such as solar energy photocell board, LED light source and energy-storage battery has obtained further developing.The LED solar energy photovoltaic system comprises solar energy photocell board, energy-storage battery, LED load and solar photovoltaic controller, undertaking the management of solar energy photocell board, energy-storage battery and LED light source is controlled as the solar photovoltaic controller of critical piece, its performance directly affects the life-span of the useful life of solar energy photovoltaic system, especially energy-storage battery.
The following defect that current solar LED light source load controller exists:
1, because photovoltaic system is automatically to light LED light source according to the illumination situation of daylight, when ambient light illumination is low, be tabula rasa voltage drop while dropping to the magnitude of voltage of a setting to a certain extent, control the LED load and light.When ambient light illumination approaches critical condition, due to outside illumination variation uncertain type, while opening when controller there will be lighting of LED load, disconnected phenomenon LED lamp Suddenly it apperared and disappered.
2, most of solar illuminating systems are applied in the public places such as park and greenbelt in little residential region, in order more to save energy, extend the life-span of energy-storage battery, need to set according to actual conditions the time of illumination.
3, the photovoltaic cell module that usually the solar LED photovoltaic system is used in application and energy-storage battery nominal voltage have multiplely, in application, need to determine energy storage electrical storage cell voltage, then select the controller of relevant voltage.
4, in application, due to reasons such as drive circuit damage or human operational errors, the solar LED photovoltaic system there will be the LED load to cause short circuit, and by built-in protective tube fusing, operating personnel will take out replacing from light fixture and housing by controller, more loaded down with trivial details.
Summary of the invention
In order to overcome above-mentioned defect, the purpose of this utility model is to provide a kind of intelligent solar LED light fixture photovoltaic controller controller, comprise MUC main control unit, photocell input voltage sampling unit, voltage-stabilizing working power supply and battery voltage sampling unit, display unit, key-press input unit, LED load output control unit and energy-storage battery charging control and protected location, wherein, the MUC main control unit carries out Based Intelligent Control according to the signal of other each parts collections to controller; Photocell input voltage sampling unit is sampled to photocell voltage, and the cut-in voltage of LED lamp load is set, and enters data into MCU Main Processing Unit; Sampled to energy-storage battery voltage in voltage-stabilizing working power supply and battery voltage sampling unit, sampled voltage is input to MCU Main Processing Unit, and MCU Main Processing Unit is identified the load voltage value of energy-storage battery according to sampled result, adopt corresponding charge mode; Display unit receives the control signal of MUC main control unit, carries out the digital demonstration of mode of operation, and the display light cell panel is lighted time delay and turn-offed indication etc. charged state, the state of energy-storage battery electric weight, the LED load of energy-storage battery; Key-press input unit is connected with the MUC main control unit, for the mode of operation of controller is set; LED load output control unit is for lighting according to the signal of MCU Main Processing Unit and extinguishing the LED load; MCU Main Processing Unit is according to the input signal from photocell input voltage sampling unit and voltage-stabilizing working power supply and battery voltage sampling unit; to the control signal that the energy-storage battery charging is controlled and protected location sends; the charge circuit of conducting or shutoff photocell-energy-storage battery, adopt the PWM mode to manage the charging of photovoltaic cell module to energy-storage battery.
In addition, described intelligent solar LED light fixture photovoltaic controller also comprises the temperature sampling unit, and it gathers the energy-storage battery temperature, and it is inputed to MCU Main Processing Unit, when the variations in temperature overrate, MCU Main Processing Unit is controlled the charge circuit that turn-offs photocell-energy-storage battery.
Also have; described intelligent solar LED light fixture photovoltaic controller also comprises the short-circuit protection unit be connected with MCU Main Processing Unit; carry out short-circuit protection when short circuit appears in the LED load, can use the components and parts such as accurate sampling resistor and amplifier integrated circuit to detect load current and control field effect transistor conducting shutoff.
Preferably, key-press input unit is used switch element one key that mode of operation is set; LED load output control unit adopts field effect transistor as switching device; Voltage-stabilizing working power supply and battery voltage sampling unit are connected with each parts of described controller, for it provides voltage-stabilizing working power supply.
Intelligent solar LED light fixture photovoltaic controller controling appliance of the present utility model has or not to be lighted delay function and lights the time time control function, by button and digital display setting mode of operation, can set according to the practical service environment of solar energy lamp light, delay time, control LED light source load break-make, and be provided with and safeguard debugging mode, be convenient to safeguard.
This novel energy-storage battery voltage automatic identification function that also is provided with, automatically after identification energy-storage battery voltage, call corresponding management mode and carry out management of charging and discharging, the lead acid accumulator (comprising the colloid lead-acid battery) that the management mode support is commonly used and polymer Li-ion battery etc.
This novel employing load short-circuit protection circuit and New-safety element, from recovering insurance (PPTC), after the short trouble repair process, recover to use automatically.
The accompanying drawing explanation
Accompanying drawing 1 is the structured flowchart of intelligent solar LED light fixture photovoltaic controller of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of intelligent solar LED light fixture photovoltaic controller of the present utility model;
Accompanying drawing 3 is package assemblies of intelligent solar LED light fixture photovoltaic controller of the present utility model.
Embodiment
As shown in Figure 1, intelligent solar LED light fixture photovoltaic controller of the present utility model comprises MUC main control unit 1, photocell input voltage sampling unit 2, voltage-stabilizing working power supply and battery voltage sampling unit 3, display unit 4, key-press input unit 5, LED load output control unit 6, short-circuit protection unit 7, energy-storage battery charging control and protected location 8 and temperature sampling unit 9.Wherein, MUC main control unit 1 carries out Based Intelligent Control according to the signal of other each parts collections to controller; 2 pairs of photocell voltages of photocell input voltage sampling unit are sampled, and the cut-in voltage of LED lamp load is set, and enter data into MCU Main Processing Unit 1; The 3 pairs of energy-storage battery voltages in voltage-stabilizing working power supply and battery voltage sampling unit are sampled, sampled voltage is input to MCU Main Processing Unit 1, MCU Main Processing Unit 1 is identified the load voltage value of energy-storage battery according to sampled result, adopt corresponding charge mode, voltage-stabilizing working power supply and battery voltage sampling unit 3 also provide voltage-stabilizing working power supply for each parts of controller; Display unit 4 is accepted the control signal of MUC main control unit 1, carries out the digital demonstration of mode of operation and display light cell panel and charged state, the state of energy-storage battery electric weight, the LED load of energy-storage battery is lighted to time delay and turn-off indication and the load short circuits indication; Key-press input unit 5 is connected with MUC main control unit 1, for the mode of operation of controller is set, can mode of operation be set a key; LED load output control unit 6 is lighted for the signal according to MCU Main Processing Unit 1 and is extinguished the LED load, preferably adopts field effect transistor as switching device; Short-circuit protection unit 7 carries out short-circuit protection when short circuit appears in the LED load, uses the components and parts such as accurate sampling resistor and amplifier integrated circuit to detect load current and controls field effect transistor conducting shutoff; MCU Main Processing Unit 1 is according to the input signal from photocell input voltage sampling unit 2 and voltage-stabilizing working power supply and battery voltage sampling unit 3, to the control signal that the energy-storage battery charging is controlled and protected location 8 sends, the charge circuit of conducting or shutoff photocell-energy-storage battery, adopt the PWM mode to manage the charging of photovoltaic cell module to energy-storage battery; Temperature sampling unit 9 gathers the energy-storage battery temperature, and it is inputed to MCU Main Processing Unit 1, and during the variations in temperature overrate, MCU Main Processing Unit 1 is controlled the charge circuit that turn-offs photocell-energy-storage battery.
Below will be with reference to the accompanying drawings 2, describe the circuit theory of intelligent solar LED light fixture photovoltaic controller of the present utility model in detail.
Photocell input voltage sampling unit 2 is comprised of resistance R 11, R16, R29, R18, triode P4, voltage stabilizing didoe Z5, capacitor C 7 and two-way twin zener dioder TVS RV1, the tabula rasa sampled voltage is through Z5, P4, R29, R18 dividing potential drop, and the voltage Vpv after dividing potential drop is through the input of the I/O of MCU Main Processing Unit 1 end.When photocell voltage higher than Z5 voltage stabilizing value+0.2V, the P4 conducting, Vpv is normal sampled voltage scope; When photocell voltage, lower than Z5 voltage stabilizing value, P4 ends, and now Vpv approaches 0V, and MCU Main Processing Unit 1 is controlled and opened the control point, and the TVS RV1 that is attempted by photovoltaic cell module plays the lightning protection effect.
Voltage-stabilizing working power supply and battery voltage sampling unit 3 form serial regulating circuit by triode Q1, voltage stabilizing didoe Z2, resistance R 3, diode D1, electrochemical capacitor E3, its output voltage V 1 is as the driving ring current of MOSFET, the circuit that simultaneously V1 is comprised of three-terminal voltage-stabilizing IC U1 and electrochemical capacitor E2, filter capacitor C2, C1 is exported VCC, as the working power of MUC main control unit 1 grade.Precision resistance R24, R26 dividing potential drop gather energy-storage battery voltage, and the voltage after dividing potential drop is through the A/D input of the I/O of MCU Main Processing Unit 1 end, and MCU identifies the load voltage value of energy-storage battery according to sampled result, adopt corresponding charge mode.
Display unit 4 carries out the digital demonstration of mode of operation and tabula rasa, energy-storage battery, LED lamp load state show, seven sections LED charactron DS1, CD4511 seven-segment decoder U4, exclusion RP1, RP2, monochrome and dual-colored LED 1, LED2, LED3 and current-limiting resistance R25, R27, R30, consists of.LED is the common anode utmost point, and control signal is by I/O mouth RC and the RB output of MCU Main Processing Unit 1.The LED display mode is set as Chang Liang and flicker, represents respectively different states.
Key-press input unit 5 consists of push-button switch S1 and pull-up resistor R42, for the mode of operation of controller is set.
LED load output control unit 6 mainly is comprised of field effect transistor T1, triode Q2, Q3, resistance R 9, R1, R2, RS1, diode D2, when the control signal of MCU Main Processing Unit 1 is exported high level by the I/O mouth, Q3 conducting, Q2 cut-off, T1 conducting, LED load are lighted, otherwise are extinguished.
Short-circuit protection unit 7 mainly is comprised of operational amplifier U2A, U2B, accurate sensing resistor RS1 and peripheral resistance R 6, R7, R5, R35, R38, R39, R34, R37, R40, triode Q2, diode D9, resistance R 8, diode D3, R10, triode Q4, resistance R 12.When short circuit appears in the LED load, the Vp voltage jump uprises, the 3 pin input amplifiers through operational amplifier U2A, 1 pin of operational amplifier U2A amplifies output, output voltage connects 5 pin of operational amplifier U2B after R34 and R37 dividing potential drop, with 6 pin of operational amplifier U2B by R41 and R36 dividing potential drop obtain reference voltage relatively after, operational amplifier U2B 7 output high level, thereby make the D3 forward conduction, the Q2 conducting, the T1 cut-off, make the Q4 conducting, Vp1 is by high step-down, the I/O of MCU Main Processing Unit 1 detects this trailing edge, control the I/O mouth to load immediately and send the low level instruction, switching off load output, another I/O exports high level Vp2 simultaneously, the Q10 conducting, the 7 pin clamps of U2B are low level, D3 turn-offs.The load short circuits fault is recovered after getting rid of automatically.
Energy-storage battery charging control and protected location 8 are mainly by field effect transistor T2, diode D4, triode Q6, P3, Q7, P2, Q5, diode D5, D6, voltage stabilizing didoe Z3, Z4 and resistance R 10, R17, R13, R21, R23, R20, R22, the compositions such as R14, field effect transistor T2, diode D4 connects with energy-storage battery with photovoltaic cell module, MCU Main Processing Unit 1 is according to the voltage of Real-Time Monitoring energy-storage battery, in I/O output, control with PWM mode signal, control the T2 break-make and come the switched charge loop, I/O mouth output Vpwm is high level, the Q2 conducting, the P1 conducting, the Q3 conducting, the Q4 cut-off, the P3 conducting, T2 stopping charge circuit, otherwise I/O mouth output Vpwm is low level, T2 conducting, unlatching charge circuit, D4 adopts Schottky diode, plays anti-reverse effect.
Temperature sampling unit 9 is connected with the I/O of MCU with negative tempperature coefficient thermistor (NTC) TR series connection dividing potential drop by R28, gathers the energy-storage battery temperature, during the variations in temperature overrate, controls and turn-offs charge circuit.
MCU Main Processing Unit 1 can be selected PIC16F883; it adopts the enhancement mode flash memory single-chip microcomputer of nanowatt technology; powerful; built-in A/D and the power poles such as reference voltage source and EEPROM are low; utilize 3 RA (A/D) input port respectively as photovoltaic cell module, energy-storage battery, temperature sampling analog input; 2 I/O mouths of port RC and RB port are done the control output of display unit; key-press input is done in 1 I/O position, and 4 I/O mouths of port RB are respectively LED load output control, PWM charging control, short-circuit protection detection input and output.
Accompanying drawing 3 shows the package assembly of intelligent solar LED light fixture photovoltaic controller of the present utility model, the pcb board 12 that comprises the schematic diagram design that adopts accompanying drawing 2, ABS plastic shell 13, draw and connect wire 14, metal back cover plate 11, lead-in wire plastic slab 15, press the circuit theory diagrams of accompanying drawing 2 and make pcb board 12, display device and button are determined position according to shell, shell 13 is the ABS plastic material, wire 14---energy-storage battery just to draw 3 pairs of connections, the negative pole line, photovoltaic cell module just, negative pole line and LED load are just, negative line, connecting wire 14 is drawn by the wire hole of shell 13, pcb board 12 is fixed in shell 13, because field effect transistor and Schottky diode need heat radiation, be fixed on the metal material cover plate, and add heat-conducting silica gel sheet and guarantee good heat radiating and insulation, the panel of shell 13 is pasted by the PVC film that has display window and stud bump, with electronic heat-conducting silicon perfusion casing inside, play heat conduction and waterproof action, 3 pairs connect wire 14 and insert lead-in wire plastic slab 15.
Finally it should be noted that: above embodiment is only in order to the technical solution of the utility model to be described but not be limited; although with reference to preferred embodiment, the utility model is had been described in detail; those of ordinary skill in the art is to be understood that: as short-circuit protection unit and temperature sampling unit not necessarily; those skilled in the art can modify or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (7)
1. an intelligent solar LED light fixture photovoltaic controller; it is characterized in that: comprise MUC main control unit, photocell input voltage sampling unit, voltage-stabilizing working power supply and battery voltage sampling unit, display unit, key-press input unit, LED load output control unit and energy-storage battery charging control and protected location
Wherein, the MUC main control unit carries out Based Intelligent Control according to the signal of other each parts collections to controller;
Photocell input voltage sampling unit is sampled to photocell voltage, and the cut-in voltage of LED lamp load is set, and enters data into MCU Main Processing Unit;
Sampled to energy-storage battery voltage in voltage-stabilizing working power supply and battery voltage sampling unit, sampled voltage is input to MCU Main Processing Unit, and MCU Main Processing Unit is identified the load voltage value of energy-storage battery according to sampled result, adopt corresponding charge mode;
Display unit receives the control signal of MUC main control unit, carries out the digital demonstration of mode of operation, and the display light cell panel is lighted time delay and turn-offed indication etc. charged state, the state of energy-storage battery electric weight, the LED load of energy-storage battery;
Key-press input unit is connected with the MUC main control unit, for the mode of operation of controller is set;
LED load output control unit is for lighting according to the signal of MCU Main Processing Unit and extinguishing the LED load;
MCU Main Processing Unit is according to the input signal from photocell input voltage sampling unit and voltage-stabilizing working power supply and battery voltage sampling unit; to the control signal that the energy-storage battery charging is controlled and protected location sends; the charge circuit of conducting or shutoff photocell-energy-storage battery, adopt the PWM mode to manage the charging of photovoltaic cell module to energy-storage battery.
2. intelligent solar LED light fixture photovoltaic controller as claimed in claim 1, it is characterized in that: also comprise the temperature sampling unit, it gathers the energy-storage battery temperature, and it is inputed to MCU Main Processing Unit, when the variations in temperature overrate, MCU Main Processing Unit is controlled the charge circuit that turn-offs photocell-energy-storage battery.
3. intelligent solar LED light fixture photovoltaic controller as claimed in claim 1 or 2, is characterized in that: also comprise the short-circuit protection unit be connected with MCU Main Processing Unit, carry out short-circuit protection when short circuit appears in the LED load.
4. intelligent solar LED light fixture photovoltaic controller as claimed in claim 3 is characterized in that: the short-circuit protection unit is used the components and parts such as accurate sampling resistor and amplifier integrated circuit to detect load currents and controls the field effect transistor conductings and turn-off.
5. intelligent solar LED light fixture photovoltaic controller as described as one of claim 1 to 3 is characterized in that: key-press input unit is used switch element one key that mode of operation is set.
6. intelligent solar LED light fixture photovoltaic controller as described as one of claim 1 to 3 is characterized in that: LED load output control unit adopts field effect transistor as switching device.
7. intelligent solar LED light fixture photovoltaic controller as described as one of claim 1 to 3, it is characterized in that: voltage-stabilizing working power supply and battery voltage sampling unit are connected with each parts of described controller, for it provides voltage-stabilizing working power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202906469U CN203352868U (en) | 2013-05-26 | 2013-05-26 | Intelligent photovoltaic controller for solar LED lamp |
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| CN2013202906469U CN203352868U (en) | 2013-05-26 | 2013-05-26 | Intelligent photovoltaic controller for solar LED lamp |
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| CN203352868U true CN203352868U (en) | 2013-12-18 |
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| CN2013202906469U Expired - Fee Related CN203352868U (en) | 2013-05-26 | 2013-05-26 | Intelligent photovoltaic controller for solar LED lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954251A (en) * | 2018-05-31 | 2018-12-07 | 芜湖徽福电子科技有限公司 | A kind of constant-current type light source controller of high efficiency and heat radiation |
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2013
- 2013-05-26 CN CN2013202906469U patent/CN203352868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954251A (en) * | 2018-05-31 | 2018-12-07 | 芜湖徽福电子科技有限公司 | A kind of constant-current type light source controller of high efficiency and heat radiation |
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Granted publication date: 20131218 Termination date: 20140526 |