CN204156567U - A kind of digital control type solar charging controller - Google Patents
A kind of digital control type solar charging controller Download PDFInfo
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- CN204156567U CN204156567U CN201420628008.8U CN201420628008U CN204156567U CN 204156567 U CN204156567 U CN 204156567U CN 201420628008 U CN201420628008 U CN 201420628008U CN 204156567 U CN204156567 U CN 204156567U
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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 utility model discloses a kind of digital control type solar charging controller, comprise solar panel, anti-lightning strike module, PWM current control module, voltage sample modules A, voltage sample module B, single chip control module, current sample module, storage battery.The utility model by voltage sample module respectively to the output voltage of solar panel and battery tension real time monitoring signals, sampling; by current sample module to charging current Real-Time Monitoring, sampling; and import the sampled signal of above-mentioned multipoint circuit parameter into single chip control module analysis; and then control charging current by PWM current control module; the size of adjustable charging current; and then protect storage battery and extend its useful life; reduce and produce and installation cost; also can prevent battery current from pouring in down a chimney, and then improve charge efficiency.Meanwhile, anti-lightning strike module can prevent thunder and lightning weather to the damage of solar recharging system.
Description
Technical field
The utility model relates to a kind of battery charging plant, especially a kind of digital control type solar charging controller.
Background technology
Solar energy, as the reproducible clean energy resource of one, is widely applied, as solar water heater, solar power generation etc. in human being's production and life.Current, the Application and Development of the solar cell being principle with " photovoltaic effect " progressively moves towards commercialization, industrialization, the solar cell of small-power small size occurs in enormous quantities and starts extensive use, this solar cell is made up of photovoltaic panel, controller and storage battery, converted solar energy into electrical energy by photovoltaic panel and be stored in storage battery, by controller, charging process being controlled simultaneously.
But because solar energy resources has unsteadiness, as being in the area that crosses of southeast warm moist air and northwest cold air for the southwest in Chongqing, the four seasons moist rainy and many thunders and lightnings weather, it is the area that the whole nation hours of daylight is the shortest, intensity of illumination is the poorest, solar energy resources is least stable, if use common solar charger, solar cell panel voltages, electric current all extremely unstable, therefore charge efficiency is extremely low, and can because of overshoot, battery current occur and pour in down a chimney phenomenon, under thunderstorm weather frequently, hit by thunder and lightning and burnt.In order to the demand enabling solar cell meet the typical weather conditions in Southwestern China area, not only first need anti-lightning strike design, also the fan-out capability of solar cell and the storage capacity of storage battery are had higher requirement, therefore need to design that a conversion efficiency is high, production cost is low, use safer solar charging controller for electric consumption, the problem effectively utilizing solar energy under complicated weather conditions could be solved.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of digital control type solar charging controller.
The technical scheme that the utility model adopts comprises solar panel, anti-lightning strike module, PWM current control module, voltage sample modules A, voltage sample module B, single chip control module, current sample module, storage battery, wherein:
Described solar panel is charged to storage battery by PWM current control module, current sample module;
Described anti-lightning strike module one end connects solar panel, other end ground connection, suffers to impact higher than the instantaneous overvoltage of normal working voltage for avoiding circuit;
Described voltage sample modules A one end connects solar panel, the other end connects single chip control module, for sampling to the voltage of solar panel and passing the signal to single chip control module;
Described voltage sample module B one end connects storage battery, the other end connects single chip control module, for sampling to the voltage of storage battery and passing the signal to single chip control module;
Described current sample module one end connects PWM current control module, the other end connects storage battery, samples, and sampled signal is transferred to single chip control module to the charging current entering storage battery;
Described single chip control module receives solar panel, the voltage sampling signal of storage battery and the current signal of inflow storage battery, and by corresponding control signal input PWM current control module, and then control the switching of charging current.
Described PWM current control module comprises resistance R1, N channel enhancement metal-oxide-semiconductor Q1, inductance L 1, electrochemical capacitor C1 and driver module U2, photoelectrical coupler U7, wherein: resistance R1 one end connects the S pole of solar panel and metal-oxide-semiconductor, the other end connects the output stage PWM1 of metal-oxide-semiconductor G pole H and photoelectrical coupler U7, inductance L 1 one end connects the D pole of metal-oxide-semiconductor Q1, the other end connects positive pole and the current sample module of electrochemical capacitor C1, the minus earth of electrochemical capacitor C1, the PWM2 output stage of driver module U2 connects the G pole of a N channel enhancement metal-oxide-semiconductor Q3, the S pole ground connection of this metal-oxide-semiconductor Q3, D pole connects the D pole of metal-oxide-semiconductor Q1, the positive pole of electrochemical capacitor C1 is through the input of current sample model calling storage battery, described PWM current control module can receive the control signal of single chip control module, and after isolation processing being carried out to control signal by photoelectrical coupler, be transferred to the G pole of metal-oxide-semiconductor Q1, and then charging current controlled and regulates, its inductance L 1 can carry out stable regulation to charging current further, avoids electric current to occur significantly vibrating.
The utility model carries out Real-Time Monitoring to the both end voltage signal of solar panel and storage battery respectively by voltage sample module, sample and import single chip control module into, by current sample module, Real-Time Monitoring is carried out to the charging current value flowing into storage battery simultaneously, sample and import single chip control module into, after single chip control module is analyzed signal, corresponding control signal is sent to PWM current control module according to different results, and then the charging current in control charge circuit, not only can ensure that charging current is more stable, also can prevent battery current from pouring in down a chimney.
Further, described driver module U2 is TC4469 chip.
Further, described anti-lightning strike module comprises ceramic gas discharge tube D4, D5 of two series connection, when solar panel is struck by lightning, instantaneous high pressure of crossing makes wherein gas breakdown, Low ESR is become by high impedance, the huge current flow that thunder and lightning produces directly is imported to ground by the mode of short circuit, avoids circuit burnout.
Further, the voltage follower that described voltage sample modules A comprises resistance R2, resistance R5 and is made up of resistance R11, electric capacity C6, operational amplifier U1C, wherein: ground connection after resistance R2 one end connects solar panel, the other end is connected with resistance R5, the in-phase input end of operational amplifier U1C is connected between R2 and R5 by R11, inverting input is connected to its output and single chip control module, the in-phase input end of electric capacity C6 one end concatenation operation amplifier U1C, other end ground connection;
The voltage follower that described voltage sample module B comprises resistance R3, resistance R4 and is made up of resistance R12, electric capacity C7, operational amplifier U1D, wherein: resistance R3 one end connects the positive pole of electrochemical capacitor C1, the other end connects ground connection afterwards with resistance R4, the in-phase input end of operational amplifier U1D is connected between R3 and R4 by R12, inverting input is connected to its output and single chip control module, the in-phase input end of electric capacity C7 one end concatenation operation amplifier U1D, other end ground connection.
Further, described current sample module comprises resistance R7, resistance R13, resistance R14, resistance R9, resistance R34 and operational amplifier U1B, wherein: R7 one end connects PWM current control module, the other end connects storage battery; The inverting input of operational amplifier U1B is connected between resistance R7 and PWM current control module by R14, is received output by R9 simultaneously, its positive input is connected between resistance R7 and storage battery, simultaneously by R34 ground connection by R13, its output connects the input of single chip control module, the current signal flowing through R7 can be converted into voltage signal by described current sample module, and outputs in single chip control module and analyze.
Further, described single chip control module is AT91SAM7S32 single-chip microcomputer;
The beneficial effects of the utility model are:
Under effectively can preventing frequent thunder and lightning weather, solar recharging system is by the situation of burning;
Can Real-Time Monitoring, sampling solar panel and the voltage of storage battery, and automatically control, regulate charging current, ensure that the stable of charging current, achieve additives for overcharge protection, make charge in batteries safer, efficient, also extend its useful life;
Real-time sampling, analysis can be carried out to the electric current flowing into storage battery, and the break-make of fast reaction, automatic control electric stream, thus effectively prevent battery current from pouring in down a chimney, ensure that charge efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model main circuit structure figure.
Fig. 3 is the voltage follower circuit structure chart of the utility model voltage sample modules A.
Fig. 4 is the voltage follower circuit structure chart of the utility model voltage sample module B.
Fig. 5 is plate utility model current sample module section circuit structure diagram.
Fig. 6 is the utility model PWM current control module part circuit structure figure.
Embodiment
By reference to the accompanying drawings and embodiment the utility model is further illustrated.
As shown in Figure 1, the utility model comprises solar panel, anti-lightning strike module, PWM current control module, current sample module, voltage sample modules A, voltage sample module B, single chip control module, storage battery: described anti-lightning strike module one end connects solar panel, other end ground connection; Described PWM current control module one end connects solar panel, the other end connects current sample module; Described current sample module one end connects PWM current control module, the other end connects storage battery; Described voltage sample modules A one end connects solar panel, the other end connects single chip control module, for sampling to the voltage of solar panel and passing the signal to single chip control module; Described voltage sample module B one end connects storage battery, the other end connects single chip control module.Described single chip control module is AT91SAM7S32 single-chip microcomputer, can receiver voltage sampling module A, the voltage sampling signal of voltage sample module B and the current sampling signal of current sample module, and by corresponding control signal input PWM current control module.
Described solar cell is high-power polycrystal silicon cell plate, and storage battery is high-capacity gel battery.
As shown in Figure 2, described anti-lightning strike module comprises ceramic gas discharge tube D4, D5 of two series connection, is become Low ESR when being struck by lightning from high impedance, and instantaneous huge current flow short circuit thunderbolt produced imports ground, protects other elements not to be damaged.
As shown in Figure 2 and Figure 3, described current sample module comprises resistance R7, resistance R13, resistance R14, resistance R9, resistance R34 and operational amplifier U1B, and wherein R7 one end connects inductance L 1, the other end connects storage battery; The inverting input of operational amplifier U1B to be connected between resistance R7 and inductance L 1 by R14 and to receive output by R9, its positive input to be connected between resistance R7 and storage battery by R13 and by R34 ground connection, its output connects the input of single chip control module.
As shown in Figure 2, Figure 4 shows, the voltage follower that described voltage sample module B comprises resistance R3, resistance R4 and is made up of resistance R12, electric capacity C7, operational amplifier U1D, resistance R3 one end connects the positive pole of electrochemical capacitor C1, the other end connects ground connection afterwards with resistance R4, the in-phase input end of operational amplifier U1D is connected between R3 and R4 by R12, inverting input is connected to its output and single chip control module, the in-phase input end of electric capacity C7 one end concatenation operation amplifier U1D, other end ground connection.
As Fig. 2, shown in Fig. 6, described PWM current control module comprises resistance R1, N channel enhancement metal-oxide-semiconductor Q1, inductance L 1, electrochemical capacitor C1 and driver module U2, photoelectrical coupler U7, described driver module U2 is TC4469 driving chip, resistance R1 one end connects the S pole of solar panel and metal-oxide-semiconductor, the other end connects the output stage PWM1 of metal-oxide-semiconductor G pole H and photoelectrical coupler U7, the D pole of metal-oxide-semiconductor Q1 connects inductance L 1, inductance L 1 other end connects positive pole and the resistance R7 of electrochemical capacitor C1, the minus earth of electrochemical capacitor C1, the PWM2 output stage of driver module U2 connects the G pole of a N channel enhancement metal-oxide-semiconductor Q3, the S pole ground connection of this metal-oxide-semiconductor Q3, D pole connects the D pole of metal-oxide-semiconductor Q1.
As shown in Fig. 2, Fig. 5, described current sample module comprises resistance R7, resistance R13, resistance R14, resistance R9, resistance R34 and operational amplifier U1B, and wherein R7 one end connects inductance L 1, the other end connects storage battery; The inverting input of operational amplifier U1B is connected between resistance R7 and inductance L 1 by R14, is received output by R9 simultaneously, its positive input is connected between resistance R7 and storage battery, simultaneously by R34 ground connection by R13, its output connects the input of single chip control module, the current signal flowing through R7 can be converted into voltage signal, and be sent to AT91SAM7S32 Chip Microcomputer A/D 3 input and analyze after operational amplifier U1B amplifies.
The utility model carries out Real-Time Monitoring, sampling to the output voltage of solar panel and battery tension signal respectively by voltage sample module, and information of voltage is imported into single chip control module and carry out analytical calculation, when solar panel output voltage meets charge condition, then single chip control module exports charging signals to PWM current controling signal, then start charging; When solar panel output voltage does not meet charge condition, then disconnect charging current, avoid the overheated and lack of water because overshoot causes, thus protection battery.Meanwhile, by current sample module, Real-Time Monitoring, sampling are carried out to charging current, and import sampled signal into single chip control module analysis, and then by PWM current control module, charging current is controlled, prevent battery current from pouring in down a chimney.
Claims (6)
1. a digital control type solar charging controller, it is characterized in that: comprise solar panel, anti-lightning strike module, PWM current control module, voltage sample modules A, voltage sample module B, single chip control module, current sample module, storage battery, wherein: solar panel is charged to storage battery by PWM current control module, current sample module; Anti-lightning strike module one end connects solar panel input, other end ground connection; Voltage sample modules A one end connects solar panel input, the other end connects single chip control module; Voltage sample module B one end connects storage battery input, the other end connects single chip control module; Current sample module one end connects PWM current control module, the other end connects storage battery input;
Described PWM current control module comprises resistance R1, N channel enhancement metal-oxide-semiconductor Q1, inductance L 1, electrochemical capacitor C1 and driver module U2, photoelectrical coupler U7, wherein: resistance R1 one end connects the S pole of solar panel input and metal-oxide-semiconductor, the other end connects the output stage PWM1 of metal-oxide-semiconductor G pole H and photoelectrical coupler U7, inductance L 1 one end connects the D pole of metal-oxide-semiconductor Q1, the other end connects the positive pole of electrochemical capacitor C1, the positive pole of electrochemical capacitor C1 connects storage battery through current sample module, minus earth, the PWM2 output stage of driver module U2 connects the G pole of N channel enhancement metal-oxide-semiconductor Q3, the S pole ground connection of this metal-oxide-semiconductor Q3, D pole connects the D pole of metal-oxide-semiconductor Q1, the positive pole of electrochemical capacitor C1 is through the input of current sample model calling storage battery,
Described single chip control module receiver voltage sampling module A, the voltage sampling signal of voltage sample module B and the current sampling signal of current sample module, input PWM current control module by control signal.
2. a kind of digital control type solar charging controller as claimed in claim 1, is characterized in that: described anti-lightning strike module comprises ceramic gas discharge tube D4, D5 of two series connection.
3. a kind of digital control type solar charging controller as claimed in claim 1, is characterized in that:
The voltage follower that described voltage sample modules A comprises resistance R2, resistance R5 and is made up of resistance R11, electric capacity C6, operational amplifier U1C, wherein: ground connection after resistance R2 one end connects solar panel input, the other end is connected with resistance R5, the in-phase input end of operational amplifier U1C is connected between R2 and R5 by R11, inverting input is connected to its output and single chip control module, the in-phase input end of electric capacity C6 one end concatenation operation amplifier U1C, other end ground connection;
The voltage follower that described voltage sample module B comprises resistance R3, resistance R4 and is made up of resistance R12, electric capacity C7, operational amplifier U1D, wherein: resistance R3 one end connects the positive pole of electrochemical capacitor C1, the other end connects ground connection afterwards with resistance R4, the in-phase input end of operational amplifier U1D is connected between R3 and R4 by R12, inverting input is connected to its output and single chip control module, the in-phase input end of electric capacity C7 one end concatenation operation amplifier U1D, other end ground connection.
4. a kind of digital control type solar charging controller as claimed in claim 1, is characterized in that: described driver module U2 is TC4469 chip.
5. a kind of digital control type solar charging controller as claimed in claim 1, it is characterized in that: described current sample module comprises resistance R7, resistance R13, resistance R14, resistance R9, resistance R34 and operational amplifier U1B, wherein: resistance R7 is serially connected between PWM current control module and storage battery input; The inverting input of operational amplifier U1B is connected between resistance R7 and PWM current control module by R14, is received output by R9 simultaneously, its positive input is connected between resistance R7 and storage battery input, simultaneously by R34 ground connection by R13, and its output connects the input of single chip control module.
6. a kind of digital control type solar charging controller as claimed in claim 1, is characterized in that: described single chip control module is AT91SAM7S32 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628008.8U CN204156567U (en) | 2014-10-28 | 2014-10-28 | A kind of digital control type solar charging controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420628008.8U CN204156567U (en) | 2014-10-28 | 2014-10-28 | A kind of digital control type solar charging controller |
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| CN204156567U true CN204156567U (en) | 2015-02-11 |
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| CN201420628008.8U Expired - Fee Related CN204156567U (en) | 2014-10-28 | 2014-10-28 | A kind of digital control type solar charging controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871186A (en) * | 2016-05-09 | 2016-08-17 | 北京新雷能科技股份有限公司 | Current reverse flow protection method and device and synchronous rectification circuit |
| CN107222014A (en) * | 2017-07-21 | 2017-09-29 | 东莞市钜大电子有限公司 | A kind of solar charging circuit of lithium battery |
| CN112677791A (en) * | 2020-11-23 | 2021-04-20 | 安徽恒瑞新能源股份有限公司 | Portable high-power energy storage fills electric pile |
-
2014
- 2014-10-28 CN CN201420628008.8U patent/CN204156567U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871186A (en) * | 2016-05-09 | 2016-08-17 | 北京新雷能科技股份有限公司 | Current reverse flow protection method and device and synchronous rectification circuit |
| CN105871186B (en) * | 2016-05-09 | 2019-08-23 | 北京新雷能科技股份有限公司 | A kind of current flowing backwards guard method, device and circuit of synchronous rectification |
| CN107222014A (en) * | 2017-07-21 | 2017-09-29 | 东莞市钜大电子有限公司 | A kind of solar charging circuit of lithium battery |
| CN107222014B (en) * | 2017-07-21 | 2024-02-02 | 东莞市钜大电子有限公司 | Solar charging circuit of lithium battery |
| CN112677791A (en) * | 2020-11-23 | 2021-04-20 | 安徽恒瑞新能源股份有限公司 | Portable high-power energy storage fills electric pile |
| CN112677791B (en) * | 2020-11-23 | 2022-07-29 | 安徽汉星能源有限公司 | Portable high-power energy storage fills electric pile |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20171028 |