CN102361333A - Multipurpose standby power supply - Google Patents
Multipurpose standby power supply Download PDFInfo
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- CN102361333A CN102361333A CN2011103091757A CN201110309175A CN102361333A CN 102361333 A CN102361333 A CN 102361333A CN 2011103091757 A CN2011103091757 A CN 2011103091757A CN 201110309175 A CN201110309175 A CN 201110309175A CN 102361333 A CN102361333 A CN 102361333A
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- lithium iron
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- iron battery
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a multipurpose standby power supply, which comprise an iron-lithium battery pack and a functional module, wherein the iron-lithium battery pack is formed by connecting a plurality of single iron-lithium battery units in series and in parallel; the functional module comprises a direct-current boost module, a direct-current to alternating-current conversion module and a charging circuit module; the output end of the charging circuit module is connected with the iron-lithium battery pack; the output of an iron-lithium battery pack module is taken as the input of the direct-current boost module; and the direct-current to alternating-current conversion module is connected with the iron-lithium battery pack. By adopting an efficient boost circuit, specified standard voltage can be output with a small quantity of iron-lithium batteries, and the cost, size and weight are reduced greatly. Alternating current can be output, input of a solar panel can be received for charging a battery, and an ordinary storage battery charger can be taken as a charging power supply.
Description
Technical field
The invention belongs to the power-supply device field, specifically relate to a kind of DC voltage booster circuit that combined, direct current is delivered the stream translation circuit, and is connected the multi-purpose battery group that lithium iron battery is a core with parallel way with series connection.
Background technology
Present electric vehicle is an example with the electric bicycle, and its power type that mainly uses is a lead accumulator, but its intrinsic limitation of lead accumulator: capacity (and flying power) is low, useful life short, environmentally safe influence is big.Generally speaking, the normal flying power of lead accumulator of 48V/10A that is full of electricity is in 40 kilometers, and useful life, length was 2 years, and the processing after scrapping is very big to environmental impact.
Lithium iron battery is a kind of very desirable novel battery that can be used for replacing traditional lead accumulator, but the most general electric vehicle all needs the power supply about direct current 48V/10Ah now.Simply single-unit (3.2V; 10Ah) the lithium iron battery words of the output voltage that obtains 48V that are together in series; Then with two groups of parallel connections (needing 30 single-unit lithium iron battery cores altogether), the cost of lithium iron battery pack module will remain high like this, be unfavorable for the popularization of this kind battery with the series connection of needs 15 joint.And the lithium iron battery charge mode is single, needs special charger, and is incompatible with the charger of the present employing lead accumulator electric bicycle that is power.
In addition, be that the stand-by power supply of core does not possess many power supplys fan-out capability with the lead accumulator, or be to exchange, or be direct current, can not be used for electric vehicle and civilian alternating-current installation/AC installation simultaneously, more do not have the fan-out capability of the 220V alternating current different with 110V.
Summary of the invention
The present invention is directed to the weak point that above-mentioned technology exists, provide a kind of and can reduce cost, guarantee complete compatible conventional charger, can use solar recharging again, can also export the multipurpose back-up source of required alternating voltage.
To achieve these goals, the technical scheme of the present invention's employing is:
A kind of multipurpose back-up source; Comprise lithium iron battery group and functional module group; Said lithium iron battery group adopts series connection and parallel way to connect to form by some single-unit lithium iron batteries unit, and said functional module group comprises that DC boosting module, direct current exchange modular converter and charging circuit module; Said charging circuit module output is connected with said lithium iron battery group, and said DC boosting module is output as input with said lithium iron battery group, and said direct current exchanges module and is connected with said lithium iron battery module.
Preferably, said charging circuit module comprises bi-directional voltage stabilizing power supply chip, switch voltage-stabilizing circuit and charging management chip, and said charging circuit module both can have been accepted the input of conventional accumulators charger, can accept the input of solar panel again.
Preferably, said DC boosting module comprises step-up transformer, self-oscillating circuit and voltage stabilizing circuit, and said DC boosting module can be raised to required direct voltage with the direct voltage of lithium iron battery group output.
Preferably, said direct current exchanges modular converter and comprises single-chip microcomputer, inverter and several high-voltage MOS pipes, and said direct current exchanges modular converter can convert the direct voltage of lithium iron battery group output to required alternating voltage.
Charging circuit module of the present invention can support solar panel and polylith solar panel to be together in series as the input power supply of charger; Can make it be used for open-air scientific investigation; Disaster relief, accident rescue and underground work still can be used in individual or area illumination system simultaneously.DC boosting module of the present invention can be increased to lower direct current output the high voltage output of the required standard of electric bicycle.Direct current ac conversion circuit of the present invention can be exported the alternating current of 220V/50Hz and 110V/60Hz, in case of emergency, can take off from electric bicycle, is used for civilian household electrical appliances or the power supply of the electrical equipment of handling official business.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Label among the figure: 1, lithium iron battery group; 2, DC boosting module; 3, charging circuit module; 4, direct current exchanges modular converter; 5, step-up transformer; 6, port I; 7, port II; 8, port III; 9, port IV; 10, inverter.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
As shown in Figure 1, the present invention discloses a kind of multipurpose back-up source, comprises that lithium iron battery group 1, DC boosting module 2, charging circuit module 3 exchange modular converter 4 with direct current.Lithium iron battery group 1 among the present invention adopts the ferric phosphate lithium cell group.The lithium iron battery group adopts ferric phosphate lithium cell in the present embodiment.
The ferric phosphate lithium cell group is made up of some joint ferric phosphate lithium cells unit, adopts series connection to be connected with the mode of parallel connection.As shown in Figure 1,8 one end to end being together in series of Battery pack both positive and negative polarity, and then connect together the final output cathode and the positive pole of this battery pack of two groups 8 one group, the output that connects together of negative pole and negative pole.Eight strings two and designs make the lithium iron battery quantity of whole battery group reduce to 16 from 30, it is nearly 46% that cost, volume and weight all descend, and can be low to moderate five joint series connection or six joint series connection in actual the use.Though reduced the series connection number of battery; But owing to adopted paralleling model; Total flying power of battery does not reduce, and but is greatly improved useful life simultaneously, brings up to the useful life at least five years from maximum 2 years useful life of traditional lead accumulator.The ferric phosphate lithium cell group to the anodal single line that is connected to battery pack of other functional modules (+VCC) with negative pole single line (GND).
DC boosting module 2 is made up of step-up transformer 5, voltage stabilizing circuit and self-oscillating circuit.This module can be raised to 48V to what the ferric phosphate lithium cell group was exported far below 48V voltage through step-up transformer, and the secondary output of step-up transformer is stablized into 48V through voltage stabilizing circuit again, can externally export to the electric bicycle power supply.The output of ferric phosphate lithium cell group supplies to 1: 2 step-up transformer elementary; Adopt the pulse of a 100kHz～500kHz driving elementary frequent conducting and the shutdown mode of being in; Thereby utilize transformer converting direct-current voltage into alternating-current voltage and raise; The pulse of 100kHz～500kHz is produced by self-oscillating circuit, and self-oscillating circuit adopts civilian formula vibration generator.The self adaptation height pulse that self-oscillating circuit produces is input in the oscillating controller (UCC38C43D); Produce the relevant control impuls of voltage regulation signal; The rhythmic opening and closing of control metal-oxide-semiconductor (FDS8672S); Finally reach stable output direct current 48V and export, be used for charging to electric bicycle from port I6.DC boosting module 2 is output as input with the ferric phosphate lithium cell group ,+VCC and the access of GND line.The output of this module directly connects the input of electric vehicle power sources.This module is output as input with the ferric phosphate lithium cell group ,+VCC and the access of GND line.
Said charging circuit module 3 comprises switch voltage-stabilizing circuit, bi-directional voltage stabilizing power supply chip and charging management chip.This module has two inputs, and one is port II 7, accepts the output of the charger of common lead accumulator electric motor car; As the input of charge power supply, switch voltage-stabilizing circuit is selected LM22677 series for use, and the efficient with 90% is the input voltage of common 48V lead accumulator electric car charger; Adjust to the charging voltage of the 28.8V of ferric phosphate lithium cell group needs; Another one port III8 accepts the charging of one-level or multistage solar cell plate, and its voltage needs bidirectional modulation; The integrated power source special chip of LTC3780 that two pressure stabilized power supply chips are selected Linear Tech for use can be accepted the voltage input of wide region.What charging management chip was used is the BQ24630 specialized lithium battery charging management chip of TI (Texas Instrument), accomplishes constant current charge, guarantee under the 28.8V constant voltage, to the ferric phosphate lithium cell group with constant charging current.
Said direct current exchanges the direct current interchange module that modular converter 4 is general UPS; Comprise single-chip microcomputer, inverter 10 and 4 high-voltage MOS pipes; Inverter 10 is that a primary and secondary ratio is about 1: 10 a transformer; Single-chip microcomputer is selected minimum 16 the PIC single-chip microcomputer series of Microchip company for use, and the model of metal-oxide-semiconductor is IRF341.This module functions is exactly that the converting direct-current voltage into alternating-current voltage of ferric phosphate lithium cell group output is exported through port IV9, in single-chip microcomputer, can be formulated as 220V/50Hz output or 110V/60Hz output according to different needs.The adjustment of voltage is recently adjusted through the percentage of the pulsewidth of the pulse of inverter primary coil driven MOS pipe, and output frequency is adjusted through the bridge-type two-way turn-on frequency of controlling 4 metal-oxide-semiconductors, thus the 220V/50Hz of output simulation or the alternating current of 110V/60H.Direct current exchanges modular converter 4 can convert the output of the direct-current discharge of ferric phosphate lithium cell group to interchange output; Can give the household electrical appliance emergency service; In case of emergency even can replace diesel engine generator back-up source to be provided for open-air rescue medical team, thus promoted its function of use and the scope of application greatly.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make other distortion or improvement, and these all belong to protection scope of the present invention.
Claims (4)
1. multipurpose back-up source; Comprise lithium iron battery group and functional module group; It is characterized in that; Said lithium iron battery group adopts series connection and parallel way to connect to form by some single-unit lithium iron batteries unit, and said functional module group comprises that DC boosting module, direct current exchange modular converter and charging circuit module; Said charging circuit module output is connected with said lithium iron battery group, and said DC boosting module is output as input with said lithium iron battery group, and said direct current exchanges module and is connected with said lithium iron battery module.
2. a kind of multipurpose back-up source according to claim 1; It is characterized in that; Said charging circuit module comprises bi-directional voltage stabilizing power supply chip, switch voltage-stabilizing circuit and charging management chip; Said charging circuit module both can have been accepted the input of conventional accumulators charger, can accept the input of solar panel again.
3. a kind of multipurpose back-up source according to claim 1; It is characterized in that; Said DC boosting module comprises step-up transformer, self-oscillating circuit and voltage stabilizing circuit, and said DC boosting module can be raised to required direct voltage with the direct voltage of lithium iron battery group output.
4. a kind of multipurpose back-up source according to claim 1; It is characterized in that; Said direct current exchanges modular converter and comprises single-chip microcomputer, inverter and several high-voltage MOS pipes, and said direct current exchanges modular converter can convert the direct voltage of lithium iron battery group output to required alternating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103091757A CN102361333A (en) | 2011-10-13 | 2011-10-13 | Multipurpose standby power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103091757A CN102361333A (en) | 2011-10-13 | 2011-10-13 | Multipurpose standby power supply |
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| CN102361333A true CN102361333A (en) | 2012-02-22 |
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| CN2011103091757A Pending CN102361333A (en) | 2011-10-13 | 2011-10-13 | Multipurpose standby power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138352A (en) * | 2013-03-21 | 2013-06-05 | 深圳市共进电子股份有限公司 | Portable solar router |
| CN110994754A (en) * | 2019-12-10 | 2020-04-10 | 国网山东省电力公司威海供电公司 | Portable direct current standby power supply |
| CN116345621A (en) * | 2023-03-23 | 2023-06-27 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
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| CN2631118Y (en) * | 2003-04-02 | 2004-08-04 | 唐锡刚 | Vehicular inverter |
| CN101286655A (en) * | 2008-05-22 | 2008-10-15 | 中国科学院电工研究所 | Complementary power supply system of wind and photovoltaic power generation based on super capacitor power storage |
| US20090058352A1 (en) * | 2007-08-27 | 2009-03-05 | Yu Chuan Technology Enterprise Co., Ltd. | Cold storage device capable of collecting solar power |
| CN101777839A (en) * | 2009-01-08 | 2010-07-14 | 中国电子为华实业发展有限公司 | Switch power supply device applying piezoelectric transformer |
| CN102074983A (en) * | 2010-11-29 | 2011-05-25 | 周荻 | Design of electric part of lithium dynamoelectric moped |
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2011
- 2011-10-13 CN CN2011103091757A patent/CN102361333A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2631118Y (en) * | 2003-04-02 | 2004-08-04 | 唐锡刚 | Vehicular inverter |
| US20090058352A1 (en) * | 2007-08-27 | 2009-03-05 | Yu Chuan Technology Enterprise Co., Ltd. | Cold storage device capable of collecting solar power |
| CN101286655A (en) * | 2008-05-22 | 2008-10-15 | 中国科学院电工研究所 | Complementary power supply system of wind and photovoltaic power generation based on super capacitor power storage |
| CN101777839A (en) * | 2009-01-08 | 2010-07-14 | 中国电子为华实业发展有限公司 | Switch power supply device applying piezoelectric transformer |
| CN102074983A (en) * | 2010-11-29 | 2011-05-25 | 周荻 | Design of electric part of lithium dynamoelectric moped |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138352A (en) * | 2013-03-21 | 2013-06-05 | 深圳市共进电子股份有限公司 | Portable solar router |
| CN103138352B (en) * | 2013-03-21 | 2015-01-07 | 深圳市共进电子股份有限公司 | Portable solar router |
| CN110994754A (en) * | 2019-12-10 | 2020-04-10 | 国网山东省电力公司威海供电公司 | Portable direct current standby power supply |
| CN116345621A (en) * | 2023-03-23 | 2023-06-27 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
| CN116345621B (en) * | 2023-03-23 | 2024-01-26 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
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Application publication date: 20120222 |