CN201887502U - Solar power device with overcharging protection circuit - Google Patents
Solar power device with overcharging protection circuit Download PDFInfo
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- CN201887502U CN201887502U CN2010206204917U CN201020620491U CN201887502U CN 201887502 U CN201887502 U CN 201887502U CN 2010206204917 U CN2010206204917 U CN 2010206204917U CN 201020620491 U CN201020620491 U CN 201020620491U CN 201887502 U CN201887502 U CN 201887502U
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Abstract
The utility model discloses a solar power device with an overcharging protection circuit, which comprises a solar module, a photovoltaic controller and a storage battery component. The photovoltaic controller consists of an anti-reverse-connection charging circuit, the overcharging protection circuit, an over-discharging protection circuit and a power output circuit, and the overcharging protection circuit includes a hysteresis comparator circuit. The solar power device effectively prevents damage caused by accidental reverse connection during charging, realizes overcharging protection by the aid of the hysteresis comparator circuit, prevents oscillation at a full charging critical point by the aid of the hysteresis comparator circuit, effectively prevents damage due to overcharging, is stable and safe, and meets the use requirements in special environments such as highlands and the like.
Description
Technical field
The utility model belongs to power supply power supply unit field, relates in particular to a kind of multipurpose solar electric supply installation, particularly a kind of solar power supply unit of additives for overcharge protection circuit.
Background technology
For a long time, freely do not reach the influence of factors such as historical many reasons and traditional custom owing to geographical position, awful weather, traffic, make the culture of Tibetan area and other minority areas and underdeveloped.Compare with low altitude area, interior ground, culture obviously lags behind with science and technology, presents significantly staged drop.Because habits and customs and consumption idea and interior having nothing in common with each other and self-centered traditional demand model that each ethnic group is intrinsic, and the influence of natural environment and geographical environment have seriously been hindered the development of science and culture technology in the minority area.Make that minority area resident's cultural and recreational activity is quite poor.
Specific geographical position and environment have been brought up Tibetan area and other minority areas blocked state for a long time, traditional for a long time begin work at sunrise, sunset and cease, self-centered simple life style can not satisfy the Chinese Minority Nationalities people's the culture and the demand of life ﹠ amusement.Along with the growing process of society, further develop and to enrich the science and technology and the culture life of Tibetan area and other minority areas extremely urgent.
In order to solve the lighting problem in agriculture and animal husbandry area, take a series of measure at present, formulated and realized the engineering of energising in every family.Solve the outlying district electrical problem, particularly the electricity consumption solar photovoltaic power in the sufficient area of daylight is a best choice.But present solar photovoltaic power purposes is single, can only throw light on; Power supply self-protection insufficiency face; Particularly alternating current-direct current needs to be met etc. simultaneously, and this has seriously restricted the application and the development of solar photovoltaic power.
Since the particularity of solar photovoltaic power environment for use, power source charges environment instability, battery is destroyed because of overcharging easily, and system need be provided with protective circuit, existing protective circuit complicated incompatibility plateau and the needs that often flow.
Existing solar photovoltaic power counnter attack charge protection device is also complicated simultaneously, and the incompatibility outlying district particularly needs the frequent use needs that flow, and fail safe and use stability requirement have a lot of deficiencies in use in special area.
Summary of the invention
The utility model discloses a kind of solar power supply unit that the additives for overcharge protection circuit is arranged.Problem to be solved in the utility model provides a kind of solar power supply unit, and it can effectively prevent the infringement that causes to power supply unit because of overcharging; The utility model can also prevent the infringement that unexpected reverse charge causes to power supply unit.
The utility model is achieved through the following technical solutions:
A kind of solar power supply unit that the additives for overcharge protection circuit is arranged; comprise solar module, photovoltaic controller, accumulator cell assembly; wherein: photovoltaic controller comprises anti-reverse charge road, additives for overcharge protection circuit, over circuit, power output circuit, and described additives for overcharge protection circuit comprises hysteresis comparator circuit.
Further described hysteresis comparator circuit comprises comparator U2D, the resistance R 17 that is connected with comparator U2D positive input terminal, the sample circuit resistance R 21, R13 and the R12 that are connected with resistance R 17, the reference voltage circuit resistance R 16 that is connected with comparator U2D negative input end and the diode D6 and the D7 that are connected with resistance R 16.
Further described additives for overcharge protection circuit comprises that the triode Q1, the triode Q1 that are connected with relay SJ2 are connected with comparator U2D by resistance R 6.
Further described counnter attack charge protector comprise with the crystal diode D1 that connect of charging connecting line, with connecting line parallel resistor R1 and the indicator light D2 of charging.
Outside solar panels input power supply VIN charges the battery by diode D1 in the circuit, utilize the oppositely back discharge of power supply when characteristic guarantees not have solar irradiation of diode, can not uprise suddenly for assurance solar panels input power supply in the circuit, insert resistance R 1, indicator light D2 indication, these two functions that are equivalent to load make solar panels can not be in Light Condition, because the solar panels no-load voltage ratio is higher simultaneously.
Adopt hysteresis comparator circuit that equipment is carried out additives for overcharge protection in the circuit, prevent to be full of the concussion of electric critical point by this circuit, the system power supply switch can not opened when charging in the circuit, the control power supply passes through diode D5 by external solar plate power supply VIN, the V12 that D9 provides, cell voltage changes from cell voltage VBAT by resistance R 21 in the comparison circuit, R13, the sampling voltage BSTH that the sampling of R2 dividing potential drop gets, it sends into the comparator positive input terminal by resistance R 17 and by diode D6, the benchmark voltage V1 that the D7 dividing potential drop gets sends into negative input end relatively by resistance R 16, because diode all has its fixed pressure drop, so more stable in its both end voltage; When the battery sampling voltage BSTH of positive input terminal is lower than the reference voltage V 1 of negative input end, comparator output is low, drive triode Q1 conducting by resistance R 6, relay SJ2 closure, the input power supply is by relay SJ2, and diode D1 charges normal, when sampling voltage BSTH is higher than V1, comparator output is high, cell voltage VBAT is at the Va place, by resistance R 6 make triode Q1 by, relay SJ2 disconnects, stop charging, owing to there is the feedback of resistance R 20 to form sluggish comparison, when cell voltage VBAT dropped to Va, the output of comparator was constant, when cell voltage drops to Vb, comparator output is low, drives triode Q1 conducting, relay SJ2 closure by resistance R 6, begin charging again, this Δ V wherein is exactly the threshold voltage that prevents to be full of the critical point concussion.Such as being full of electric cell voltage is 14V (Va), the back cell voltage that stops so charging will descend a bit less than 14V, if there is not sluggishness relatively to act on, circuit will charge the battery again, so repeatedly, forms concussion, but after having sluggishness relatively, voltage will drop to 13V (Vb) just the startup charging process, has so just avoided concussion, cushions just as the section of having in the middle of this.
The over circuit is to have used hysteresis comparator circuit, prevents the concussion of under-voltage protection critical point by this circuit, and when battery tension was lower than protection voltage, controller cut out output automatically and is not damaged with the protection storage battery.This is by a pair of Automatic Protection Switching control, and a protection switch is out that a protection switch is to close off switch automatic disconnection when brownout.
Photovoltaic controller can comprise multiple power supply output socket, can comprise the direct voltage output interface of three 12V, can be used for illumination, satellite receiver, high definition HEVD or the like.A 5V cell-phone charging port, in such information age, it is more convenient, lighter that portable mobile phone gas station allows everybody live.
Above-mentioned each electronic component all has commercially available.
Helpfulness of the present utility model: the utility model has been realized the output of alterating and direct current, and makes power supply more stable, safe, durable owing to the utlity model has the kinds of protect function, and it covers with under the situation about using of loading and can use more than 18 hours continuously most.The application that this has expanded solar powered power supply greatly has good using value.This product can solve multipurpose such as the illumination, multimedia equipment of the family of no electrical network, no optical cable area and short of electricity, wild place's work unit and tourism, frontier defense and use.The utility model can effectively prevent the infringement that unexpected reverse charge causes to power supply unit; Utilize hysteresis comparator circuit that equipment is carried out additives for overcharge protection, prevent to be full of the concussion of electric critical point, effectively prevent the infringement that causes to power supply unit because of overcharging, and the circuit stability and safety adapts to the use needs of particular surroundingss such as plateau by this circuit.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the utility model system principle structured flowchart;
Fig. 2 is that the utility model connects the use schematic block diagram;
Fig. 3 is the anti-overcharge electric protection circuit diagram of the utility model;
Fig. 4 is the sluggish logical coordinates figure of the utility model voltage.
Embodiment
In conjunction with Fig. 1 to Fig. 4.
Fig. 1 is the utility model system principle structured flowchart, and as shown in the figure: systemic-function comprises anti-reverse charge road B, additives for overcharge protection circuit A, over circuit C, power output circuit D.Anti-reverse charge road B comprises B place dotted line block diagram among the figure, and additives for overcharge protection circuit A comprises A place dotted line block diagram among the figure, and over circuit C comprises C place dotted line block diagram among the figure, and power output circuit D comprises D place dotted line block diagram among the figure.
Fig. 2 is that the utility model connects the use schematic block diagram, and as shown in the figure: solar panel becomes electric energy with transform light energy after certain energy solar radiation.The power storage that controller in the multi-functional photovoltaic power supply produces solar cell is in storage battery.Photovoltaic control system is reasonably distributed to electricity of accumulator in the different loads during electricity consumption.
Fig. 3 is the anti-overcharge electric protection circuit diagram of the utility model, and Fig. 4 is the sluggish logic signal of a utility model voltage coordinate diagram.Used hysteresis comparator circuit in the circuit, prevent to be full of the concussion of electric critical point by this circuit, the system power supply switch can not opened when charging in the circuit, the control power supply passes through diode D5 by external solar plate power supply VIN, the V12 that D9 provides, cell voltage changes from cell voltage VBAT by resistance R 21 in the comparison circuit, R13, the sampling voltage BSTH that the sampling of R12 dividing potential drop gets, it sends into comparator U2D positive input terminal by resistance R 17, with benchmark voltage V1 (by diode D6, the D7 dividing potential drop gets, because diode all has its fixed pressure drop, so more stable in its both end voltage) send into comparator U2D negative input end relatively by resistance R 16, when the battery sampling voltage BSTH of positive input terminal is lower than the reference voltage V 1 of negative input end, comparator output is low, drive triode Q1 conducting by resistance R 6, relay SJ2 (G5LA-14) closure, the input power supply is by relay SJ2 (G5LA-14), diode D1 charges normal, a line process among Fig. 4, when sampling voltage BSTH is higher than V1, comparator output is high, cell voltage VBAT is the Va place in Fig. 4, by resistance R 6 make triode Q1 by, relay SJ2 (G5LA-14) disconnects, stop charging, owing to there is the feedback of resistance R 20 to form sluggish comparison, when cell voltage VBAT descends (b line process among the figure) in Fig. 4 during Va, the output of comparator is constant, when cell voltage drops among Fig. 4 Vb, comparator output is low, drives triode Q1 conducting, relay SJ2 (G5LA-14) closure by resistance R 6, begin charging again, this Δ V wherein is exactly the threshold voltage that prevents to be full of the critical point concussion.Being full of electric cell voltage such as me is 14V (Va), the back cell voltage that stops so charging will descend a bit less than 14V, if there is not sluggishness relatively to act on, circuit will charge the battery again, so repeatedly, form concussion, but after having sluggishness relatively, voltage will drop to 13V (Vb) just the startup charging process, has so just avoided concussion.Comparator U2D adopts LM239 in this example, and relay SJ2 adopts G5LA-14.
External solar plate input power supply VIN charges the battery by diode D1 during charging, utilize the oppositely back discharge of power supply when characteristic guarantees not have solar irradiation of diode, can not uprise suddenly for assurance solar panels input power supply in the circuit, insert resistance R 1, indicator light D2 indication, these two functions that are equivalent to load make solar panels can not be in Light Condition, because the solar panels no-load voltage ratio is higher simultaneously.
The utility model also comprises over circuit C, power output circuit D.The over circuit is to have used hysteresis comparator circuit, prevents the concussion of under-voltage protection critical point by this circuit, and when battery tension was lower than protection voltage, controller cut out output automatically and is not damaged with the protection storage battery.This is by a pair of Automatic Protection Switching control, and a protection switch is out that a protection switch is to close off switch automatic disconnection when brownout.Photovoltaic controller can comprise multiple power supply output socket, can comprise the direct voltage output interface of three 12V, can be used for illumination, satellite receiver, high definition HEVD or the like.A 5V cell-phone charging port, in such information age, it is more convenient, lighter that portable mobile phone gas station allows everybody live.
Claims (4)
1. solar power supply unit that the additives for overcharge protection circuit is arranged; comprise solar module, photovoltaic controller, accumulator cell assembly; wherein: photovoltaic controller comprises anti-reverse charge road, additives for overcharge protection circuit, over circuit, power output circuit, and it is characterized in that: described additives for overcharge protection circuit comprises hysteresis comparator circuit.
2. the solar power supply unit that the additives for overcharge protection circuit is arranged according to claim 1 is characterized in that: described hysteresis comparator circuit comprises comparator (U2D), the resistance (R17) that is connected with comparator (U2D) positive input terminal, the sample circuit resistance (R21, R13, R12) that is connected with resistance (R17), reference voltage circuit resistance (R16) that is connected with comparator (U2D) negative input end and the diode (D6, D7) that is connected with resistance (R16).
3. the solar power supply unit that the additives for overcharge protection circuit is arranged according to claim 1 is characterized in that: described additives for overcharge protection circuit comprises that the triode (Q1), the triode (Q1) that are connected with relay (SJ2) are connected with comparator (U2D) by resistance (R6).
4. according to each described solar power supply unit that the additives for overcharge protection circuit is arranged of claim 1 to 3, it is characterized in that: described counnter attack charge protector comprise with the charging connecting line crystal diode (D1) of connect, with connecting line parallel resistor (R1) and the indicator light (D2) of charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206204917U CN201887502U (en) | 2010-11-23 | 2010-11-23 | Solar power device with overcharging protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206204917U CN201887502U (en) | 2010-11-23 | 2010-11-23 | Solar power device with overcharging protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887502U true CN201887502U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206204917U Expired - Fee Related CN201887502U (en) | 2010-11-23 | 2010-11-23 | Solar power device with overcharging protection circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762769A (en) * | 2016-04-26 | 2016-07-13 | 深圳珈伟光伏照明股份有限公司 | Cell protection circuit applied to solar photovoltaic product |
| CN106410953A (en) * | 2016-10-26 | 2017-02-15 | 深圳航天东方红海特卫星有限公司 | Separation self power on and battery protection method applied to micro/nano satellite |
| CN108336786A (en) * | 2018-02-11 | 2018-07-27 | 深圳市显控科技股份有限公司 | A kind of anti-load power source oscillating circuit for farad capacitor backup power supply |
| CN109038715A (en) * | 2018-07-20 | 2018-12-18 | 上海空间电源研究所 | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery |
| CN112186827A (en) * | 2020-08-24 | 2021-01-05 | 韶关市益金农业有限公司 | Solar energy charge and discharge control circuit for solar insecticidal lamp |
-
2010
- 2010-11-23 CN CN2010206204917U patent/CN201887502U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762769A (en) * | 2016-04-26 | 2016-07-13 | 深圳珈伟光伏照明股份有限公司 | Cell protection circuit applied to solar photovoltaic product |
| CN106410953A (en) * | 2016-10-26 | 2017-02-15 | 深圳航天东方红海特卫星有限公司 | Separation self power on and battery protection method applied to micro/nano satellite |
| CN106410953B (en) * | 2016-10-26 | 2019-05-07 | 深圳航天东方红海特卫星有限公司 | It is a kind of to be powered on and accumulator protecting method suitable for being isolated from for micro-nano satellite |
| CN108336786A (en) * | 2018-02-11 | 2018-07-27 | 深圳市显控科技股份有限公司 | A kind of anti-load power source oscillating circuit for farad capacitor backup power supply |
| CN109038715A (en) * | 2018-07-20 | 2018-12-18 | 上海空间电源研究所 | A kind of software and hardware combined battery charge controller of high-voltage lithium ion battery |
| CN112186827A (en) * | 2020-08-24 | 2021-01-05 | 韶关市益金农业有限公司 | Solar energy charge and discharge control circuit for solar insecticidal lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131123 |