CN102480134B - A kind of solar recharging system - Google Patents
A kind of solar recharging system Download PDFInfo
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- CN102480134B CN102480134B CN201010552138.4A CN201010552138A CN102480134B CN 102480134 B CN102480134 B CN 102480134B CN 201010552138 A CN201010552138 A CN 201010552138A CN 102480134 B CN102480134 B CN 102480134B
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- pwm controller
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- solar
- inverter
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Abstract
The invention provides a kind of solar recharging system, comprise: solar panel, control cabinet and battery box, wherein, described control cabinet comprises charger, inverter, first Pwm controller, described charger input connects described solar panel, and its output connects described battery box charging inlet; Described inverter input terminal connects the voltage output end of described solar panel and battery box, and its output connects the ac voltage output of described solar recharging system; Described first Pwm controller connects described inverter, and it is for the protection of control inverter.Can meet by the present invention the needs that solar energy is converted into safely electric energy, ensure Electrical Safety by Pwm controller protective circuit simultaneously, further, whether can charge by automatic control electric bottle case, improve Consumer's Experience.
Description
Technical field
The invention belongs to charging technique field, especially relate to the technology utilizing solar recharging.
Background technology
Solar energy, as the natural green energy of occurring in nature, has and obtains convenient, free of contamination advantage.But because solar energy is to the particular/special requirement of weather, current solar energy system has relatively unstable shortcoming mostly, and can not ensure to power at any time, like this, the circuit protection problem of solar recharging system just becomes increasingly conspicuous.
To this; businessman on market provides some solution pages and solves above problem; but; owing to such as transshipping in solar energy conversion process; excess temperature powerup issue proposes new requirement to circuit; this makes to need in the design of solar charging circuit to add protective circuit, meanwhile, how to accomplish to ensure that solar recharging system does not continue by weather effect to export the service efficiency that electric energy also affects solar recharging system.
Therefore, provide one can effectively conversion solar can and be stored as electric energy, simultaneously can just seem particularly important to the solar recharging system that charging device plays available protecting effect.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, the solar recharging system of electricity consumption handling safety, when solar energy input residue, dump energy is to battery box charge storage; When the upper use of solar energy supply exports, the remaining electricity of battery box supplies inverter with solar energy simultaneously; When solar energy does not have, storage battery directly supplies.
For defect of the prior art, the invention provides a kind of solar recharging system, comprising: solar panel and battery box, wherein, a control cabinet, comprising:
One charger, its input connects described solar panel, output connects described battery box charging inlet, described charger comprises charging circuit and charge protector, described charge protector, after the voltage loaded on described charging circuit reaches a standard value, disconnects this charging circuit;
One inverter, its input connects the output of described battery box, and described inverter comprises a transformer, a rectification circuit connects and an inverter circuit;
First Pwm controller, for controlling the input voltage of the primary coil of described transformer;
Thermal-shutdown circuit, it is connected with described first Pwm controller, for after described control the temperature inside the box reaches a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
Above-mentioned solar recharging system, wherein, one second Pwm controller, connects described inverter circuit, and described second Pwm controller is used for the voltage stabilizing of the output AC voltage of control inverter.
Above-mentioned solar recharging system, wherein, also comprises in described control cabinet:
Under-voltage protecting circuit, it is connected with described first Pwm controller, for after described input voltage drops to a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
Above-mentioned solar recharging system, wherein, described control cabinet also comprises:
Overvoltage crowbar, it is connected with described first Pwm controller, for after described input voltage reaches a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
Above-mentioned solar recharging system, wherein, described control cabinet also comprises:
Overload protecting circuit, it is connected with described first Pwm controller, for when load is excessive, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
Above-mentioned solar recharging system, wherein, described control cabinet also comprises:
Short-circuit protection circuit, it is connected with described second Pwm controller, for when load is excessive, sends signal to described second Pwm controller, turns off described inversion and export.
Above-mentioned solar recharging system, wherein, described solar energy electroplax is single-crystalline-silicon solar-cell panel or polysilicon solar cell plate.
The present invention by charger and inverter being arranged in control cabinet, and arranges protective circuit to improve product safety performance, and when using product of the present invention, use hommization, solar energy delivery efficiency is higher.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to following accompanying drawing, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 illustrates according to the first embodiment of the present invention, a kind of operation principle block diagram of solar recharging system;
Fig. 2 illustrates according to a second embodiment of the present invention, a kind of charger circuit diagram of solar recharging system;
According to the third embodiment of the invention Fig. 3 shows, a kind of inverter circuit schematic diagram of solar recharging system;
Fig. 4 shows according to a fourth embodiment of the invention, a kind of prime protective circuit of voltage regulation schematic diagram of solar recharging system;
Fig. 5 shows according to a fifth embodiment of the invention, a kind of thermal-shutdown circuit schematic diagram of solar recharging system;
Fig. 6 shows according to a sixth embodiment of the invention, a kind of overvoltage of solar recharging system, the circuit diagram of overload protection; And
Fig. 7 shows according to a seventh embodiment of the invention, a kind of short-circuit protection principle block diagram of solar recharging system.
Embodiment
Below in conjunction with specification drawings and specific embodiments, solar recharging equipment of the present invention is described in more detail.
Fig. 1 illustrates according to the first embodiment of the present invention, a kind of operation principle block diagram of solar recharging system.Particularly, in the present embodiment, described solar recharging system comprises solar panel 1, control cabinet 2, battery box 3, and control cabinet 2 comprises charger 201, inverter 202, inverter protecting control device 203.Charger and inverter as being wholely set in control cabinet, thus make system easy to be attractive in appearance by present system.
Wherein, the input of charger 201 is connected with described solar panel 1, the output of charger 201 is connected with the input of battery box 3, and battery box 3 output is connected with the direct current input of inverter 4.
The operation principle of the solar recharging equipment of the present embodiment is as follows: first, and solar panel 1 receives after ambient light is shone and produces DC voltage and current through opto-electronic conversion, and DC voltage and current is converted into alternating current through inverter 202 and exports; When solar energy input residue, dump energy is to battery box 2 charge storage, and particularly, described DC voltage and current is converted into charging current voltage and charges to described battery box 3 after charger 201; When the upper use of solar energy supply exports, battery box more than 3 electricity supplies inverter 202 with solar energy simultaneously; When lacking solar energy, storage battery directly supplies, and the electric energy of storage is supplied to inverter 202 and carries out the conversion that direct current delivers stream by battery box 3.Solar energy changes into civilian alternating current and exports to user's use, as long as namely the output that user connects loads to the inverter 202 of this solar recharging equipment can be load supplying the most at last.In addition, under-voltage when the inverter protecting control device 203 of this solar recharging equipment can also charge to charging system, mistake is put, excess temperature etc. carries out Automatic Control.The solar recharging equipment of the present embodiment, structure is simple, and fitting operation is simple, convenient mobile, is applicable to work in a lot of environment.
In a preference, solar panel 1 is single-crystalline-silicon solar-cell panel.It will be appreciated by those skilled in the art that described solar recharging system also can adopt multiple solar panel, described change does not affect the enforcement of the present embodiment, does not repeat them here.
Fig. 2 illustrates according to a second embodiment of the present invention, a kind of charger circuit diagram of solar recharging system.With reference to the embodiment shown in figure 1, in the present embodiment, described charger input connects described solar panel, and its output connects described battery box charging inlet; Wherein, described charger is made up of charge protector 2001 and charging circuit 2002, and charge protector 2001, after the voltage loaded on described charging circuit reaches a standard value, disconnects this charging circuit.Particularly, in the present embodiment, solar panel output voltage is 15V, battery box output voltage is 12V, with reference to figure 2, solar energy input SOLAR+15V adds fashionable, resistance R5 and R6 dividing potential drop detect and judge whether solar energy adds in charger, make triode N2 turns on pull-down over the ground, now resistance R3 and R4 divides effectively over the ground and gets battery voltage, BATTERY+12V is as the reverse comparative voltage of voltage comparator ic 1A the 6th pin comparator, as the reference voltage 2.5V that voltage comparator ic 1A the 6th pin connects lower than the 5th pin, 7th pin exports high potential and promotes triode N1, relay J adhesive, relay J normally-closed contact Jb connects a red light, simultaneously solar-electricity adds diode D1 and D2 forward to storage battery (not shown in Fig. 2) charging and red light R is bright by relay adhesive, when battery box is full of electric energy, battery voltage is carried in voltage comparator ic 1A the 6th pin will higher than the 5th pin reference voltage 2.5V, and the 7th pin exports electronegative potential and promotes triode N1, relay J not adhesive, described relay J normally opened contact Jk connects a green light, and now the red light R G that do not give a green light is bright.
Further; Fig. 2 also show the over-discharge protection circuit of battery box; wherein, resistance R2 and R1, diode D4; electric capacity C2; 5,6 and 7 pin of resistance R3 and R4 and voltage comparator ic 1A form a voltage step, and when utilizing 7 pin of voltage comparator ic 1A to export electronegative potential, the 7 pin inside of voltage comparator ic 1A over the ground; form drop, be full of to one, storage battery and recover charging interval process.By isolating as effective with diode forward charging, can prevent the battery voltage when static state from flowing backwards.Just to have stopped on R3 and R4 like this when not having solar-electricity to input can to battery cell discharge may, thus reach zero loss, can not when there is no solar energy for a long time to battery cell discharge may.
According to the third embodiment of the invention Fig. 3 shows, a kind of inverter circuit schematic diagram of solar recharging system.With reference to the embodiment shown in figure 1, in the present embodiment, described inverter input terminal connects the voltage output end of described solar panel and battery box, and its output connects the ac voltage output of described solar recharging system; Wherein, described inverter is by transformer, and rectification circuit and inverter circuit composition, connect described rectification circuit between described transformer and described inverter circuit, the output of inverter circuit is as inverter output end.
Battery voltage DC12V joins elementary input 6.7 pin of transformer T1 by fuse, the grid that control switch triode P3 and triode P4 promotes field effect transistor Q1 and field effect transistor Q2 is respectively controlled by the first Pwm controller 301, field effect transistor is connected with the high frequency two of transformer T1 is elementary, form a push-pull type to drive, field effect transistor high frequency forms concussion over the ground.Transformer rear class exports high-frequency ac high voltage, draws a high direct voltage HV through diode D3, D4, D5 and D6 bridge rectifier.Diode D22, D23, D24 and D25 also rectification export a direct voltage VCC as rear class power supply.Described high direct voltage HV joins the drain electrode of field effect transistor M1, M4, controls field effect transistor M2, the conducting of M1, M3 and M4 and cut-off by the second Pwm controller 302, forms a full-bridge like this and exports modified sine wave shape.
Below in conjunction with Fig. 3, inverter of the present invention is described, direct current amplifies voltage, after transformer boost, by fast recovery diode rectification, finally by field effect transistor M1, M2, M3 and M4 switch control rule output AC by prime field effect transistor.
Fig. 4 shows according to a fourth embodiment of the invention, a kind of prime protective circuit of voltage regulation schematic diagram of solar recharging system.With reference to the embodiment shown in figure 3, in the present embodiment, the size that described prime protective circuit of voltage regulation controls prime input by the height of described rear class high pressure HV compensates the demand of rear class.High direct voltage HV is through resistance R2, R9 dividing potential drop is carried out the conducting of control switch triode N1 and is ended the luminous degree realizing controlling photoelectricity coupling and device O1, the light levels got from the other end of optocoupler is different, conducting degree also just obtains controlled, output voltage G2 pin joins 12 of voltage comparator ic 3, 13 and 14 pin compare output, connect described first Pwm controller 301 again and carry out pulse-width adjustment control, namely control described field effect transistor Q1 and Q2(with reference to figure 3) conducting degree, also the high pressure that transformer rear class exports just is controlled, form a feedback circuit.
Further, described solar recharging system also comprise rear class protective circuit of voltage regulation, described rear class protective circuit of voltage regulation realizes mainly through the control of described second Pwm controller 302 pairs of inverters 2.Particularly, with reference to figure 3, resistance R49, R64 take output voltage after voltage-stabiliser tube Z3 voltage stabilizing punctures by resistance R48 and R62 dividing potential drop, connect the second Pwm controller 302, described second Pwm controller 302 controls driver output to realize the voltage stabilizing function of rear class output AC voltage.
According to the third embodiment of the invention Fig. 5 shows, a kind of thermal-shutdown circuit schematic diagram of solar recharging system.Described thermal-shutdown circuit connects the first Pwm controller 301, after temperature reaches a predetermined value in described control cabinet 2, sends signal to described first Pwm controller 301.Particularly, when internal temperature is too high, the resistance that resistance TC1 presents will increase, when increasing to set point, triode P2 is with regard to conducting, and the 6th pin current potential on voltage comparator ic 34 is dragged down, and 7 pin export high potential and connect the first Pwm controller 301 through D9, like this, described first Pwm controller sends signal, turns off the input voltage of described transformer, reaches the object that excess temperature turns off; Also upper for comparator IC33 the 2nd pin current potential is also dragged down, the 1st pin exports high potential and is added to triode N2 conducting, and reporting to the police over the ground in buzzer B3 mono-termination power one end, realizes overtemperature alarm function simultaneously.
Further, described solar recharging system also comprise under-voltage protecting circuit, with reference to figure 5, the bleeder circuit of 12V Input voltage terminal contact resistance R4, R22 and R19 composition, comparator IC3 the 2nd pin is connected, when voltage drop is to set point, when the 3rd pin of comparator IC33 is higher than the 2nd pin between resistance R22 and resistance R19,1 pin exports high potential conducting N2 triode, buzzer B3 undervoltage warning; And when 5 pin that voltage continues to drop to comparator IC3 are higher than 6 pin, 7 pin export high potentials, then connect the first Pwm controller 301 through D9, turn off pulsewidth pin, reach the function of undervoltage turnoff.Undervoltage warning function can be first had before undervoltage turnoff from upper explanation.
Fig. 6 shows according to a sixth embodiment of the invention, a kind of overvoltage of solar recharging system, overload protecting circuit schematic diagram.Particularly; described overvoltage, overload protecting circuit comprise a voltage comparator ic 12; 3rd pin of described voltage comparator ic 12 connects the first Pwm controller 301; wherein; for overvoltage crowbar; it is for after described input voltage reaches a preset value, sends to described first Pwm controller the input voltage that signal turns off the primary coil of described transformer.In the embodiment of the protective circuit shown in Fig. 6; after input voltage Vn reaches a preset value; compare after input voltage Vn and scheduled voltage V1 through voltage comparator ic 12; described voltage comparator ic 12 exports a high potential; turn off the first Pwm controller 301, realize overvoltage turn-off function.
Similarly, for overload protecting circuit, overload is owing to exceeding setting load, the load of band is larger, larger in the pressure drop of load voltage terminal voltage, load voltage (V load) end adds the 2nd pin of IC12 through resistance R35, after load voltage reaches a preset value, compare after input voltage and scheduled voltage V1 through voltage comparator ic 12, described voltage comparator ic 12 exports a high potential, turn off the first Pwm controller 301, like this, just achieve when load is excessive, first Pwm controller described in described overload protecting circuit case sends the input voltage that signal turns off described transformer, thus realize overvoltage turn-off function.
Fig. 7 shows according to a seventh embodiment of the invention, a kind of short-circuit protection principle block diagram of solar recharging system.Described short-circuit protection circuit 701 is connected with described second Pwm controller 203; described short-circuit protection circuit 701 connects load voltage end (not shown); when load is excessive; described short-circuit protection circuit 701 sends signal to described second Pwm controller 203, turns off the inverting output terminal of described inverter.
In one embodiment; the secondary output end of described inverter 203 utilizes constantan wire for sample line; when load excessive on sample line sampling value be greater than set point; described short-circuit protection circuit 701 comprises a comparison amplifier, exports high potential turn off described second Pwm controller 203 by described comparison amplifier.
It should be appreciated by those skilled in the art that those skilled in the art can realize described change case in conjunction with prior art and above-described embodiment, do not repeat them here.Such change case does not affect flesh and blood of the present invention, does not repeat them here.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. a solar recharging system, comprising: solar panel and battery box, is characterized in that, a control cabinet, comprising:
One charger, its input connects described solar panel, output connects described battery box charging inlet, described charger comprises charging circuit and charge protector, described charge protector, after the voltage loaded on described charging circuit reaches a standard value, disconnects this charging circuit;
One inverter, its input connects the output of described battery box, and described inverter comprises a transformer, a rectification circuit and an inverter circuit;
First Pwm controller, for controlling the input voltage of the primary coil of described transformer;
Thermal-shutdown circuit, it is connected with described first Pwm controller, for after described control the temperature inside the box reaches a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller;
One second Pwm controller, connects described inverter circuit, and described second Pwm controller is used for the voltage stabilizing of the output AC voltage of control inverter;
Described control cabinet also comprises:
Short-circuit protection circuit, it is connected with described second Pwm controller, for when load is excessive, sends signal, turn off the inverting output terminal of described inverter to described second Pwm controller;
Described charge protector comprises:
The input of described charger passes through resistance R5 and the resistance R6 ground connection of series connection, the base stage of triode N2 is connected with the junction of described resistance R5 and resistance R6, this triode N2 grounded emitter, and the collector electrode of this triode N2 is compared power supply BATTERY with resistance R3 with battery be connected by the resistance R4 of series connection, the reverse input end of voltage comparator ic 1A is connected to the junction of described resistance R4 and described resistance R3, and the input in the same way of this voltage comparator ic 1A is connected with reference voltage, the output of described voltage comparator ic 1A is connected with the base stage of triode N1 by resistance R7, the grounded emitter of this triode N1, the collector electrode of described triode N1 is connected with relay J.
2. solar recharging system according to claim 1, is characterized in that, also comprises in described control cabinet:
Under-voltage protecting circuit, it is connected with described first Pwm controller, for after described input voltage drops to a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
3. solar recharging system according to claim 1, is characterized in that, described control cabinet also comprises:
Overvoltage crowbar, it is connected with described first Pwm controller, for after described input voltage reaches a preset value, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
4. solar recharging system according to claim 1, is characterized in that, described control cabinet also comprises:
Overload protecting circuit, it is connected with described first Pwm controller, for when load is excessive, sends signal, turn off the input voltage of described transformer to described first Pwm controller.
5. solar recharging system according to claim 1, is characterized in that, described solar panel is single-crystalline-silicon solar-cell panel or polysilicon solar cell plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552138.4A CN102480134B (en) | 2010-11-22 | 2010-11-22 | A kind of solar recharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552138.4A CN102480134B (en) | 2010-11-22 | 2010-11-22 | A kind of solar recharging system |
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| Publication Number | Publication Date |
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| CN102480134A CN102480134A (en) | 2012-05-30 |
| CN102480134B true CN102480134B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010552138.4A Expired - Fee Related CN102480134B (en) | 2010-11-22 | 2010-11-22 | A kind of solar recharging system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406700A (en) * | 2015-12-21 | 2016-03-16 | 中国科学院广州能源研究所 | Photovoltaic inverter bus capacitance pressure equalization and bus overvoltage protection control circuit and system |
| CN112721837B (en) * | 2021-01-29 | 2023-08-15 | 武汉法拉唯汽车科技有限公司 | Vehicle power distribution system |
| CN116191631B (en) * | 2023-01-31 | 2023-09-29 | 深圳市凌鑫电子有限公司 | Low-cost power supply charging circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5581171A (en) * | 1994-06-10 | 1996-12-03 | Northrop Grumman Corporation | Electric vehicle battery charger |
| CN201048296Y (en) * | 2007-04-23 | 2008-04-16 | 李贺源 | Multi-use AC power plant |
| CN201075729Y (en) * | 2007-08-03 | 2008-06-18 | 浙江省能源研究所 | Solar energy photovoltaic power generation and commercial power complementation apparatus |
| CN201430542Y (en) * | 2009-07-06 | 2010-03-24 | 泉州市英德光电科技有限公司 | Solar inverted power supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222343B1 (en) * | 1998-08-14 | 2001-04-24 | Milwaukee Electric Tool Corporation | Battery charger, a method for charging a battery, and a software program for operating the battery charger |
-
2010
- 2010-11-22 CN CN201010552138.4A patent/CN102480134B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5581171A (en) * | 1994-06-10 | 1996-12-03 | Northrop Grumman Corporation | Electric vehicle battery charger |
| CN201048296Y (en) * | 2007-04-23 | 2008-04-16 | 李贺源 | Multi-use AC power plant |
| CN201075729Y (en) * | 2007-08-03 | 2008-06-18 | 浙江省能源研究所 | Solar energy photovoltaic power generation and commercial power complementation apparatus |
| CN201430542Y (en) * | 2009-07-06 | 2010-03-24 | 泉州市英德光电科技有限公司 | Solar inverted power supply |
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| CN102480134A (en) | 2012-05-30 |
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Owner name: SHANGHAI MAXGAIN ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHENYUAN PHOTOELECTRIC TECHNOLOGY CO., LTD. Effective date: 20130122 |
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Effective date of registration: 20130122 Address after: 201806. 6 building, No. 158 Heng Fei Road, Jiading District, Shanghai Applicant after: Shanghai Maiji Electronics Co., Ltd. Address before: 201806, No. 158, Heng Fei Road, No. 1 Industrial Park, Jiading District, Shanghai Applicant before: Shanghai Shenyuan Photoelectric Technology Co., Ltd. |
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