CN204481505U - Multisection lithium battery series connection quick charge device - Google Patents
Multisection lithium battery series connection quick charge device Download PDFInfo
- Publication number
- CN204481505U CN204481505U CN201520066412.5U CN201520066412U CN204481505U CN 204481505 U CN204481505 U CN 204481505U CN 201520066412 U CN201520066412 U CN 201520066412U CN 204481505 U CN204481505 U CN 204481505U
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- circuit
- joint group
- battery
- lithium battery
- electric quantity
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Multisection lithium battery series connection quick charge device, comprise boost charge circuit, step-down charging circuit, battery strings joint group, electric quantity display circuit, step-down discharge circuit and single chip machine controlling circuit, described boost charge circuit is all connected with battery strings joint group with step-down charging circuit; Described battery strings joint group is connected with step-down discharge circuit; Described boost charge circuit, step-down charging circuit, battery strings joint group are all connected with single chip machine controlling circuit with step-down discharge circuit; Described single chip machine controlling circuit is connected with electric quantity display circuit, and this electric quantity display circuit is connected with battery strings joint group; This multisection lithium battery series connection quick charge device, because the charging interval shortens, can do greatly battery electric quantity, provides stand-by power supply then can to the electrical appliance of as far as possible many use batteries; Improve the discharging efficiency of lithium battery, effectively extend the life-span of lithium battery; This product adopts high-voltage lithium serial connection charge, and step-down discharge, the charging interval is short, and lithium battery discharging efficiency is high, is worth promoting.
Description
Technical field
the utility model relates to stand-by power supply field, especially a kind of multisection lithium battery series connection quick charge device.
Background technology
the charging current of existing stand-by power supply is the highest only has 1A, and the electric current assigning to single-unit is limited, so charging rate is slow.In addition power supply adaptor used to accomplish low-voltage and high-current, not high to the fail safe of circuit.Existing stand-by power supply is charged in parallel, step-up discharge, and the charging interval is long, and discharging efficiency is low.
Utility model content
the utility model aims to provide a kind of employing high-voltage lithium serial connection charge, step-down discharge, and the charging interval is short, and lithium battery discharging efficiency is high, the multisection lithium battery series connection quick charge device be worth promoting.
for achieving the above object, the utility model provides following technical scheme: multisection lithium battery series connection quick charge device, comprise boost charge circuit, step-down charging circuit, battery strings joint group, electric quantity display circuit, step-down discharge circuit and single chip machine controlling circuit, described boost charge circuit is all connected with battery strings joint group with step-down charging circuit, for charging the battery, wherein when input voltage is less than cell voltage, boost charge circuit is used to charge, when input voltage is greater than cell voltage, step-down charging circuit is used to charge, power supply adaptor is not needed to carry out pressure regulation, easy to use, improve the fail safe of circuit, described battery strings joint group is connected with step-down discharge circuit, carries out step-down discharge by step-down discharge circuit, improves lithium battery discharging efficiency, described boost charge circuit, step-down charging circuit, battery strings joint group are all connected with single chip machine controlling circuit with step-down discharge circuit, are controlled by single chip machine controlling circuit, described single chip machine controlling circuit is connected with electric quantity display circuit, and this electric quantity display circuit is connected with battery strings joint group, for showing battery current electric quantity.
compared with prior art, the beneficial effects of the utility model are: this multisection lithium battery series connection quick charge device, and the charging interval shortens, thus can battery electric quantity be done greatly, provides stand-by power supply then to the electrical appliance of as far as possible many use batteries.Improve the discharging efficiency of lithium battery, effectively extend the life-span of lithium battery.Solve existing portable power source charged in parallel, the problem existing for step-up discharge.This product adopts high-voltage lithium serial connection charge, and step-down discharge, the charging interval is short, and lithium battery discharging efficiency is high, is worth promoting.
Accompanying drawing explanation
fig. 1 is line module figure A of the present utility model;
fig. 2 is line module figure B of the present utility model;
fig. 3 is circuit theory diagrams of the present utility model.
Embodiment
below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
refer to Fig. 1-3, in the utility model embodiment, multisection lithium battery series connection quick charge device, comprise boost charge circuit, step-down charging circuit, battery strings joint group, electric quantity display circuit, step-down discharge circuit and single chip machine controlling circuit, described boost charge circuit is all connected with battery strings joint group with step-down charging circuit, for charging the battery, wherein when input voltage is less than cell voltage, boost charge circuit is used to charge, when input voltage is greater than cell voltage, step-down charging circuit is used to charge, power supply adaptor is not needed to carry out pressure regulation, easy to use, improve the fail safe of circuit, described battery strings joint group is connected with step-down discharge circuit, carries out step-down discharge by step-down discharge circuit, improves lithium battery discharging efficiency, described boost charge circuit, step-down charging circuit, battery strings joint group are all connected with single chip machine controlling circuit with step-down discharge circuit, are controlled by single chip machine controlling circuit, described single chip machine controlling circuit is connected with electric quantity display circuit, and this electric quantity display circuit is connected with battery strings joint group, for showing battery dump energy.
operation principle of the present utility model: please refer to Fig. 3, live part: one, when external adapter access portable power source, voltage signal is had to input at the 18th pin of single-chip microcomputer, now single-chip microcomputer the 2nd pin exports high level, opens booster circuit and step-down discharge circuit to the current charges of a battery 170mA.
two, with 170mA current charges after 2 minutes, single-chip microcomputer the 5th pin exports high level, and now triode Q10, triode Q9 bis-MOSFET open, and resistance R31 is in parallel with resistance R46, and resistance total value diminishes, and now charging current is 1A.If input power power is inadequate, voltage can decline, and when dropping to 4.5V, single-chip microcomputer the 5th pin turns off, and maintains trickle charge.
three, when input voltage is higher than 13V, after microprocessor detect to voltage, the 4th pin exports high level, the 2nd pin output low level.Such booster circuit does not work, and only has reduction voltage circuit work.Carry out step-down charging.
four, chip U2 is battery protection ic; in the process of charging, if certain batteries voltage advances to 4.2V, the 1st pin exports high level; turn off triode Q4; now charging circuit is without load, and output potential raises, and the 16th pin of single-chip microcomputer detects that current potential raises; and then the 2nd; 5 pin output low levels, turn off charging circuit, and charging terminates.If each batteries electric quantity balancing, when series voltage is 12.6V, single-chip microcomputer the 16th pin output low level, turns off charging.Charging terminates.
discharge portion:
one, when load access portable power source chip USB port, triode Q2 or triode Q7 conducting, single-chip microcomputer the 6th or the 7th pin is by high step-down level, single-chip microcomputer is waken up, and then single-chip microcomputer the 8th pin exports high level, step-down discharge circuit is opened, and battery is charged to load by triode Q5, triode Q4, chip U3 step-down discharge circuit.
two, when the voltage of certain batteries is lower than 3.0V, chip U2 the 3rd pin exports high level, turns off triode Q5, and electric discharge terminates.
three, when the load of short circuit is linked into chip USB port, chip U2 starts short-circuit protection, turns off triode Q5, step-down discharge circuit can not be worked.
four, when load current is greater than 2A, single-chip microcomputer the 14th pin or 15 pin detect big current, thus the 8th pin output low level, turn off step-down discharge circuit and can not work by it.Reach the object of protection.
to those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
in addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (1)
1. multisection lithium battery series connection quick charge device, comprise boost charge circuit, step-down charging circuit, battery strings joint group, electric quantity display circuit, step-down discharge circuit and single chip machine controlling circuit, it is characterized in that, described boost charge circuit is all connected with battery strings joint group with step-down charging circuit; Described battery strings joint group is connected with step-down discharge circuit; Described boost charge circuit, step-down charging circuit, battery strings joint group are all connected with single chip machine controlling circuit with step-down discharge circuit; Described single chip machine controlling circuit is connected with electric quantity display circuit, and this electric quantity display circuit is connected with battery strings joint group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066412.5U CN204481505U (en) | 2015-01-30 | 2015-01-30 | Multisection lithium battery series connection quick charge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066412.5U CN204481505U (en) | 2015-01-30 | 2015-01-30 | Multisection lithium battery series connection quick charge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481505U true CN204481505U (en) | 2015-07-15 |
Family
ID=53637278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520066412.5U Expired - Fee Related CN204481505U (en) | 2015-01-30 | 2015-01-30 | Multisection lithium battery series connection quick charge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204481505U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786894A (en) * | 2016-12-26 | 2017-05-31 | 锐马（福建）电气制造有限公司 | One kind is based on binodal lithium battery fast charge method and electronic equipment charging module |
| US11056896B2 (en) | 2016-10-12 | 2021-07-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal and device |
| US11322949B2 (en) | 2016-10-12 | 2022-05-03 | Guangdong Oppo Mobile Telecommunication Corp., Ltd. | Battery management circuit, device to be charged, and power management method |
-
2015
- 2015-01-30 CN CN201520066412.5U patent/CN204481505U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11056896B2 (en) | 2016-10-12 | 2021-07-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal and device |
| US11322949B2 (en) | 2016-10-12 | 2022-05-03 | Guangdong Oppo Mobile Telecommunication Corp., Ltd. | Battery management circuit, device to be charged, and power management method |
| CN106786894A (en) * | 2016-12-26 | 2017-05-31 | 锐马（福建）电气制造有限公司 | One kind is based on binodal lithium battery fast charge method and electronic equipment charging module |
| CN106786894B (en) * | 2016-12-26 | 2019-07-16 | 锐马（福建）电气制造有限公司 | One kind being based on binodal lithium battery fast charge method and electronic equipment charging module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |