CN203674746U - Portable solar mobile power source with MPPT function - Google Patents

Portable solar mobile power source with MPPT function Download PDF

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Publication number
CN203674746U
CN203674746U CN201320786359.7U CN201320786359U CN203674746U CN 203674746 U CN203674746 U CN 203674746U CN 201320786359 U CN201320786359 U CN 201320786359U CN 203674746 U CN203674746 U CN 203674746U
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CN
China
Prior art keywords
circuit
cover
lithium battery
power source
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320786359.7U
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Chinese (zh)
Inventor
王金林
张文博
杨啸宇
姜海
周陆
王莉
谷云龙
石慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN ZHONGHUAN CHUANGXIN TECHNOLOGY Co Ltd
Original Assignee
TIANJIN ZHONGHUAN CHUANGXIN TECHNOLOGY Co Ltd
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Priority to CN201320786359.7U priority Critical patent/CN203674746U/en
Application granted granted Critical
Publication of CN203674746U publication Critical patent/CN203674746U/en
Withdrawn - After Issue legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The utility model relates to a portable solar mobile power source with an MPPT function. In circuitry, an MPPT charging management circuit is respectively connected with a solar cell panel and a lithium battery protection circuit, the lithium battery protection circuit is respectively connected with a lithium battery and a boosted circuit, and the output end of the boosted circuit is connected with a USB interface through an overcurrent protection circuit. A shell body comprises an upper cover and a lower cover, the polymer lithium battery and a master control PCB are contained in a cavity defined by the upper cover and the lower cover, the standard USB interface is formed in the edge of the upper cover, a 5V/1A power source is output and provided outwards, an electric quantity display key hole location, four electric quantity indicating LED lamps and a hole location of a charging indicating lamp are further arranged on the upper cover, and fixing screw locations are arranged on the lower cover and used for fixing the upper cover and the lower cover. The portable solar mobile power source has the advantages that an MPPT technology is utilized in the circuitry, the charging efficiency of the solar cell panel on the solar mobile power source is improved, the electric quantity self-loss phenomenon of the mobile power source caused by IC work currents is avoided, and the protection circuit solves the problems of the overcharging, the overdischarging, the short circuit and the overcurrent of the solar mobile power source.

Description

A kind of portable type solar energy portable power source with MPPT function
Technical field
The utility model relates to Portable power source, particularly a kind of portable type solar energy portable power source with MPPT function.This portable power source can be its electric energy supplement by solar panel, preserves these energy of being changed by solar panel by built-in poly-lithium battery.This portable power source also provides the USB interface of standard, and the external fan-out capability of 5V/1A is provided.Can be that other portable digital produces charging by USB interface anywhere or anytime.
Background technology
Along with improving constantly of people's living standard, portable digital product is in kind and quantitatively all get more and more, as mobile phone, panel computer, digital camera, medical health equipment etc.These equipment all will be used battery, but the internal battery of these equipment always can not meet long use because capacity is too little.In the time going on business or travel, being again these equipment has not had electricity through the crucial moment battery of being everlasting, particularly in the time that mobile phone is made a phone call and when digital camera is being taken pictures.And also every kind of equipment all can not be joined to a reserve battery, cost is high nor convenient.Based on this, portable power source arises at the historic moment.
What existing portable power source product capacity can be done on the market is higher, and single-machine capacity can reach 2500mAh to 12000mAh, generally adopts polymer lithium ion battery cell, and capacity and the volume of common portable power source are directly proportional.Capacity large portable power source again, if electric energy supplement not in time, the electric energy of being preserved by lithium battery also can be finished.If utilize solar energy to continue a journey for portable power source, just can avoid the problem that does not have electricity to cause portable power source to use due to inner lithium ion battery.Be converted to electric energy if utilize solar panel to collect solar energy, directly electric energy is input to the charging end of portable power source, can does not mate and cause the utilance of solar energy very low due to the input impedance of portable power source charging end and the output impedance of solar panel.The output impedance of solar panel is again along with the intensity of illumination and the variation of output voltage and change.
If so development solar energy movable power supply just must adopt a kind of utilization ratio of novel method raising solar panel, MPPT maximal power tracing technology that Here it is.Common portable power source all can have self-discharge phenomenon, do not give other digital product chargings, the electric weight of self also can reduce along with the time, this is because the boost static working current of IC of DC-DC causes, so just must adopt high performance booster power administrative skill for the unloaded hold facility that improves portable power source.
Except possessing high performance booster power administrative skill, the fail safe of portable power source is also the problem that development solar energy movable power supply should come into one's own.Portable power source must possess in inside: overcharge, cross put, the safeguard measure such as short circuit, overcurrent.
At present, domestic this type of technology that there is no is applied, and also has no bibliographical information, how to address this problem and just becomes the problem that those skilled in the art will study and solve.
Summary of the invention
The purpose of this utility model is exactly for overcoming the deficiencies in the prior art, a kind of technical scheme of portable type solar energy portable power source of the MPPT of having function is provided, by the principle of maximal power tracing technology and the circuit structure of maximal power tracing, adopt the impedance of a kind of novel method coupling solar panel and portable power source charging end, to improve the charge efficiency of solar panel to solar energy movable power supply, improve portability and the practicality of solar energy movable power supply.
The utility model is to realize by such technical scheme: a kind of portable type solar energy portable power source of the MPPT of having function, it is characterized in that, circuitry comprises MPPT charge management circuit, lithium battery protection circuit, booster circuit, current foldback circuit and electric quantity display circuit; MPPT charge management circuit is connected with solar panel, lithium battery protection circuit respectively, and lithium battery protection circuit is also connected with lithium battery, booster circuit respectively; Booster circuit output is connected with current foldback circuit, and current foldback circuit connects USB interface;
Described MPPT charge management circuit is made up of lithium cell charging managing chip CN3065 and peripheral circuit thereof;
Described lithium battery protection circuit is made up of single-lithium-battery protection IC chip S8261 and peripheral circuit thereof;
Described booster circuit is made up of step-up DC/DC controller ME2109 with PWM/PFM handoff functionality;
Described current foldback circuit is made up of load switch MXT1610 and peripheral circuit thereof.
Circuitry is arranged in housing, housing comprises upper cover and lower cover, in the cavity of upper cover and lower cover formation, be accommodated with poly-lithium battery and master control PCB circuit board, cover rim is provided with the USB interface of standard, externally output provides 5V/1A power supply, upper cover is also provided with the position, hole of position, electric weight display button hole, four battery capacity indication LED lamps and charging indicator light, under be stamped fixed screw position, in order to fixed cover and lower cover.
The utility model beneficial effect: by design new hull contour structures, improve portability and the practicality of solar energy movable power supply; Circuitry utilizes maximal power tracing technology, has improved the charge efficiency of solar panel to solar energy movable power supply; Adopt the CMOS being formed by the PWM/PFM control switching circuit DC/DC controller that boosts to solve the large problem of IC static working current of boosting, can prevent from causing that because of the operating current of IC portable power source electric weight is from loss phenomenon; Added protective circuit has solved the overcharging of solar energy movable power supply, has crossed and put, short circuit, cross flow problem simultaneously.
The utility model has good reference significance to the design of solar energy movable power supply.
Brief description of the drawings
Fig. 1, circuit structure block diagram of the present utility model;
Fig. 2, MPPT charge management circuit figure;
Fig. 3, lithium battery protection circuit figure;
Fig. 4, booster circuit figure;
Fig. 5, current foldback circuit figure;
Fig. 6, electric quantity display circuit figure.
Embodiment
Understand the utility model for clearer, describe in conjunction with the accompanying drawings and embodiments the utility model in detail:
Embodiment: as shown in Figures 1 to 6, have the portable type solar energy portable power source of MPPT function, circuitry comprises MPPT charge management circuit, lithium battery protection circuit, booster circuit, current foldback circuit and electric quantity display circuit;
MPPT charge management circuit is connected with solar panel, lithium battery protection circuit respectively, and lithium battery protection circuit is also connected with lithium battery, booster circuit respectively; Booster circuit output is connected with current foldback circuit, and current foldback circuit connects USB interface; Lithium battery connects electric quantity display circuit;
Described MPPT charge management circuit is made up of lithium cell charging managing chip CN3065 and peripheral circuit thereof;
Described lithium battery protection circuit is made up of single-lithium-battery protection IC chip S8261 and peripheral circuit thereof;
Described booster circuit is made up of step-up DC/DC controller ME2109 with PWM/PFM handoff functionality;
Described current foldback circuit is made up of load switch MXT1610 and peripheral circuit thereof;
As shown in Figure 2, lithium cell charging managing chip CN3065 is the core of MPPT charge management circuit, the mode of operation of its employing linear power supply, and inside comprises power transistor.Inner analog to digital converter, can automatically adjust sending-end impedance according to the electric current fan-out capability of input solar panel, thereby automatically adjust charging current, can maximally utilise the electric current fan-out capability of input solar panel, improve charge efficiency.
The 4th pin of lithium cell charging managing chip CN3065 connects solar panel through port J1, and port J2 connects the output of lithium battery protection circuit, and by port, J2 charges to lithium battery, and charge cutoff voltage is 4.2V; Resistance R 4 is the resistance that arranges of constant current charge electric current, and its computing formula is Ich=1800V/R4; The 6th pin of lithium cell charging managing chip CN3065 and the 7th pin connect respectively the indicator light and just at charging indicator light of having charged, the indicator light that wherein charged is red LED, just green LED at charging indicator light, these two LED are packaged together, common anode, is reserved with position, a hole in case top lid for these two common anode utmost point LED.
As shown in Figure 3; lithium battery protection circuit has adopted single-lithium-battery protection IC chip S8261; the 5th pin, the 6th pin of single-lithium-battery protection IC chip S8261 connect lithium battery through port J3; port J4 is the protection output of lithium battery; can charge to lithium battery by port J4, lithium battery is also externally to discharge by port J4 simultaneously.The inner integrated voltage comparator of chip S8261, when cell voltage is during lower than minimum voltage, the grid of the 1st pin control metal-oxide-semiconductor Q3 ME9926 by chip S8261, thus metal-oxide-semiconductor is turn-offed, isolate the ground that battery and lithium battery protection circuit are exported.Stop the permanent damages phenomenon causing because of lithium battery deep discharge, the life-span of having improved portable power source.
As shown in Figure 4, booster circuit design has adopted the CMOS being made up of the PWM/PFM control switching circuit DC/DC controller ME2109 that boosts, in the time that load is lighter, it is 15% PFM control circuit that operating state is switched to duty ratio, can prevent from boosting portable power source electric weight that the operating current of IC causes from loss phenomenon because of DC-DC.The 2nd pin, the 3rd pin of step-up DC/DC controller ME2109 connect li-ion cell protection output through port J4; port J6 is the output of booster circuit; resistance R 9, R10 are used for the output voltage of Circuit tuning; output voltage is 5V; capacitor C 5, C6 and C7 are used for eliminating output ripple voltage and the spike noise of Switching Power Supply, make stable output.
As shown in Figure 5, in current foldback circuit, load switch MXT1610 the 4th pin, connectivity port J7 after the 5th pin short circuit, connect the output of booster circuit through port J7, load switch chip MXT1610 the 1st pin, the 3rd pin connectivity port J8, port J8 is USB interface, the load capacity of 5V/1A is externally provided, working load switch chip MXT1610 is connected on output of the present utility model, wherein resistance R 11 be the maximum current that allows of overcurrent protection resistance is set, when output overcurrent occurs, when short circuit phenomenon, the metal-oxide-semiconductor of load switch chip MXT1610 inside can be closed automatically, thereby disconnect the load that booster circuit output is connected with USB output of the present utility model, overcurrent and short-circuit protection effect are played.
According to the above description, can realize scheme of the present utility model in conjunction with art technology.

Claims (5)

1. a portable type solar energy portable power source with MPPT function, is characterized in that, circuitry comprises MPPT charge management circuit, lithium battery protection circuit, booster circuit, current foldback circuit and electric quantity display circuit;
MPPT charge management circuit is connected with solar panel, lithium battery protection circuit respectively, and lithium battery protection circuit is also connected with lithium battery, booster circuit respectively; Booster circuit output is connected with current foldback circuit, and current foldback circuit connects USB interface;
Described MPPT charge management circuit is made up of lithium cell charging managing chip CN3065 and peripheral circuit thereof;
Described lithium battery protection circuit is made up of single-lithium-battery protection IC chip S8261 and peripheral circuit thereof;
Described booster circuit is made up of step-up DC/DC controller ME2109 with PWM/PFM handoff functionality;
Described current foldback circuit is made up of load switch MXT1610 and peripheral circuit thereof;
Circuitry is arranged in housing, housing comprises upper cover and lower cover, in the cavity of upper cover and lower cover formation, be accommodated with poly-lithium battery and master control PCB circuit board, cover rim is provided with the USB interface of standard, externally output provides 5V/1A power supply, upper cover is also provided with the position, hole of position, electric weight display button hole, four battery capacity indication LED lamps and charging indicator light, under be stamped fixed screw position, in order to fixed cover and lower cover.
2. a kind of portable type solar energy portable power source with MPPT function as claimed in claim 1; it is characterized in that; the 4th pin of lithium cell charging managing chip CN3065 connects solar panel through port J1, and port J2 connects the output of lithium battery protection circuit.
3. a kind of portable type solar energy portable power source with MPPT function as claimed in claim 1; it is characterized in that; the 5th pin, the 6th pin of single-lithium-battery protection IC chip S8261 connect lithium battery through port J3; port J4 is the protection output of lithium battery; can charge to lithium battery by port J4, lithium battery is also externally to discharge by port J4 simultaneously.
4. a kind of portable type solar energy portable power source with MPPT function as claimed in claim 1; it is characterized in that; in described booster circuit; the 2nd pin, the 3rd pin of step-up DC/DC controller ME2109 connect li-ion cell protection output through port J4; port J6 is the output of booster circuit; resistance R 9, R10 are used for the output voltage of Circuit tuning, and output voltage is 5V, and capacitor C 5, C6 and C7 are used for eliminating output ripple voltage and the spike noise of Switching Power Supply.
5. a kind of portable type solar energy portable power source with MPPT function as claimed in claim 1; it is characterized in that; in current foldback circuit; connectivity port J7 after load switch MXT1610 the 4th pin, the 5th pin short circuit; connect the output of booster circuit through port J7; load switch chip MXT1610 the 1st pin, the 3rd pin connectivity port J8, port J8 is USB interface.
CN201320786359.7U 2013-12-04 2013-12-04 Portable solar mobile power source with MPPT function Withdrawn - After Issue CN203674746U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320786359.7U CN203674746U (en) 2013-12-04 2013-12-04 Portable solar mobile power source with MPPT function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320786359.7U CN203674746U (en) 2013-12-04 2013-12-04 Portable solar mobile power source with MPPT function

Publications (1)

Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103607021A (en) * 2013-12-04 2014-02-26 天津中环创新科技有限公司 Portable solar mobile power source with MPPT function
CN104124737A (en) * 2014-07-31 2014-10-29 济南大学 Multifunctional mobile power source
WO2019216777A1 (en) * 2018-05-07 2019-11-14 Allison Martijena Mario Alberto Basic domestic solar energy system
CN112032643A (en) * 2020-08-12 2020-12-04 江门标昇光能科技有限公司 MPPT system of solar lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103607021A (en) * 2013-12-04 2014-02-26 天津中环创新科技有限公司 Portable solar mobile power source with MPPT function
CN103607021B (en) * 2013-12-04 2015-10-07 天津中环创新科技有限公司 There is the portable type solar energy portable power source of MPPT function
CN104124737A (en) * 2014-07-31 2014-10-29 济南大学 Multifunctional mobile power source
WO2019216777A1 (en) * 2018-05-07 2019-11-14 Allison Martijena Mario Alberto Basic domestic solar energy system
CN112032643A (en) * 2020-08-12 2020-12-04 江门标昇光能科技有限公司 MPPT system of solar lamp

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20140625

Effective date of abandoning: 20151007