CN103123991A - Lithium-based batteries connected in parallel by modules - Google Patents
Lithium-based batteries connected in parallel by modules Download PDFInfo
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- CN103123991A CN103123991A CN2011103719291A CN201110371929A CN103123991A CN 103123991 A CN103123991 A CN 103123991A CN 2011103719291 A CN2011103719291 A CN 2011103719291A CN 201110371929 A CN201110371929 A CN 201110371929A CN 103123991 A CN103123991 A CN 103123991A
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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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Abstract
The invention discloses lithium-based batteries connected in parallel by modules and particularly relates to at least two or more lithium-based battery packs with same or different characteristics which can be charged and discharged and interconnected in parallel, wherein each lithium-based battery pack comprises at least one battery, a battery manager system (BMS), a charge switch, a discharge switch and a charger detection circuit which are electrically connected and communicated with one another, and the charge switch is provided with an isolator. The charger detection circuit is used for detecting whether a charger for each lithium-based battery pack is switched on or not, and the isolator is used for isolating inverse charge of power supplies among all the lithium-based battery packs; and when each lithium-based battery pack is connected with a load for discharge operation, single discharge or parallel discharge can be set by connecting all the lithium-based battery packs in parallel, and protection mechanisms of battery modules are self-managed by all the battery modules.
Description
Technical field
This technology is that the lithium of relevant a kind of module parallel connection is battery, refer in particular to be that battery pack is carried out the charge and discharge operation with lithiums identical more than at least two or two or not identical characteristics, and these lithiums to be battery pack system link setting mutually with parallel way, and lithium be battery pack comprise at least one battery core group is arranged, battery core group management system (BMS), charge switch, discharge switch and charger circuit for detecting.Utilize the charger circuit for detecting is whether the charger of battery pack accesses in order to detect lithium, then see through transfer of data and determine whether carrying out charging in exchange, reaching lithium is the purpose that the in parallel single charging of battery module or parallel connection are charged simultaneously; Recycling each lithium in parallel is that battery pack sees through transfer of data and exchange decides single discharge or parallel discharge, and reaching each lithium is battery pack tool protection mechanism, being that battery pack is managed voluntarily by each lithium.
Background technology
the mankind's the vehicles that the most often use in life are (as vapour now, locomotive) all need to use fossil energy, and natural fossil energy is limited, make fossil energy also reduce gradually because of for a long time consumption, moreover the burning because of fossil energy produces toxic emission again, cause global greenhouse effect to increase gradually, cause ball ecological environment gradually change and worsen, therefore in response to fossil energy shortage with reduce greenhouse effect, gradually towards take green can be as the electric motor car of power, and because electric motor car needs by the supply of the battery pack more than at least one group as power supply, and then the technology that has the developer to be battery with lithium significantly breaks through, make lithium battery can be used as the supply power supply of high electric weight demand, to solve the problems such as distance falls short of that continue after electric motor car is full of power supply each time.
yet lithium is battery still to have problems on reality is used, battery module volume for example, weight, price, maintenance issues, characteristic etc. factor, need a plurality of battery pack parallel connections to use together, if but incite somebody to action when more than at least two or two, the lithium series battery group of identical characteristics is in parallel uses, often each lithium series battery group is because of various factors, produce different qualities, several specific characters need to consider, each lithium is that battery pack is because the lithium series battery core that different time production and different vendor make, different components material lithium series battery group, the lithium series battery group of different internal resistances, different lithium is battery capacity, it is that battery pack has different qualities that different voltage lithium series battery cores all make each lithium, when causing each lithium battery group to discharge and recharge, because each lithium is can't reach mutual coupling between battery pack, so easily making some lithium is that battery pack is overcharged or overdischarge and protection situation, can cause lithium is the damage of battery, causing each lithium battery group of different qualities mutually to link to arrange with parallel way fills, the discharge operation.
Summary of the invention
In view of above problem, the lithium that main purpose of the present invention is to provide a kind of module parallel connection is battery, refer in particular to be that battery pack is carried out the charge and discharge operation with the lithium of at least two or two above identical characteristics or non-identical characteristics, and these lithiums to be battery pack system link setting mutually with parallel way, wherein lithium be battery pack comprise at least one battery core group is arranged, a battery core group management system (Battery Manager System, be called for short BMS), charger circuit for detecting, charge switch and discharge switch.Battery core group management system system is electrically connected with the battery core group, and in order to monitoring the electric weight of battery core group, and the battery core group management system can be in order to receive and to send data-signal; Charger circuit for detecting system is connected with the battery core group management system, in order to detect the connection status that lithium is battery pack and a charger; Charge switch and discharge switch are respectively and the battery core group is electrically connected, and in order to the control of doing the external power source conducting or opening circuit, and charge switch separately includes an isolator, is that between battery pack, the contrary of power supply fills in order to intercept each lithium; Each lithium is that the battery core group management system of battery pack can be connected with a data line again, and each data line phase mutual connection is established the connection conducting, but making each lithium is the transmission of date number between battery pack, and can setting wherein by a default firmware, a lithium be that battery pack is battery pack as the master control lithium of issuing order.so, when lithium is battery module access in parallel one preset charged device, can be that battery pack sees through data line and notifies other each lithium is that battery pack determines whether to carry out charging by the master control lithium, and each lithium to be battery pack charge according to required electric weight, (one group of charging is completed and is changed one group again to reach battery module single charging in parallel, complete in proper order charging) or in parallel and fill the purpose of (battery module that uses in parallel charges simultaneously), and be that power supply between battery pack contrary fills and the firmware that sees through the battery core group management system solves the heat that produces because of isolator by isolator in order to intercept each lithium, and being battery module, lithium is connected in parallel a load when discharging operation, be that battery pack sees through transfer of data and exchange to decide each lithium be that battery pack is that (one group is discharged and changes other one group again in single discharge by each lithium in parallel, until all battery pack are discharged) or parallel discharge (in parallel to use lithium be that battery pack is discharged simultaneously, until all battery pack are discharged), and the protection mechanism of battery module is managed voluntarily by each battery module.
Below be described in detail detailed features and the advantage of this creation in execution mode, its content is enough to make any related art techniques person of haveing the knack of understand technology contents of the present invention and implement according to this, and content disclosed according to this specification, claim and graphic, any related art techniques person of haveing the knack of can understand the aforesaid purpose of this creation and advantage easily.
Description of drawings
The 1st figure is that the present invention is that lithium is battery module the first embodiment configuration diagram in parallel.
The 2nd figure is that the present invention is that lithium is that the lithium of battery module parallel connection is battery pack inside structure schematic diagram.
The 3rd figure is that lithium of the present invention is battery module the second embodiment configuration diagram in parallel.
The 4th figure is that lithium of the present invention is battery module the 3rd embodiment configuration diagram in parallel.
The 5th figure is that lithium of the present invention is battery module the 4th embodiment configuration diagram in parallel.
[primary clustering symbol description]
1, lithium is battery pack 11, battery core group
12, battery core group administration module 13, charger circuit for detecting
14, charge switch 141, isolator
15, discharge switch 16, positive terminal
17, negative pole end 2, data line
3, wireless transceiver 4, control device
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
See also shown in the 1st, 2 figure, the present invention is that a kind of lithium of exposure is that battery module is in parallel, refer in particular to be that battery pack 1 is carried out the charge and discharge operation with lithiums identical more than at least two or two or not identical characteristics, be mutually to link setting with parallel way and these lithiums are battery pack 1, wherein lithium is that battery pack 1 includes at least one battery core group 11, a battery core group management system (Battery Manager System is called for short BMS) 12, charger circuit for detecting 13, charge switch 14 and discharge switch 15.Battery core group 11 its include a plurality of battery cores mutually connect consist of.Battery core group management system 12 is and battery core group 11 is electrically connected, and in order to monitoring the electric weight of battery core group 11, and battery core group management system 12 can be in order to receive and to send data-signal.Charger circuit for detecting 1
3 are and battery core group management system 11 is electrically connected, and in order to detecting the connection status that lithium is battery pack 1 and a charger, and send a triggering signal.Charge switch 14 is to be electrically connected with battery core group 11, in order to the control of doing the external power source conducting or opening circuit, and charge switch 14 includes an isolator 141, be that between battery pack 1, the contrary of power supply fills in order to intercept each lithium, and isolator 141 can be diode, metal-oxide layer-semiconductor-field-effect transistor and (is called for short metal-oxide half field effect transistor, the electronic building brick of multi-form congenerous such as MOSFET).Discharge switch 15 is to be electrically connected with battery core group 11, in order to the control of doing the external power source conducting or opening circuit.And the battery core group management system 12 that each lithium is battery pack 1 can be connected with a data line 2, and each data line 2 phase mutual connections are established the connection conducting, but making each lithium is the transmission of date number between battery pack 1, and then can set wherein by a default firmware that a lithium is that battery pack 1 is battery pack 1 as the master control lithium of issuing order.
The present invention attempts an embodiment, and this charge switch 14 can be arranged at discharge switch 15 positive terminal 16 that lithium is battery pack 1, is that charge switch 14 is connected with positive terminal 16 with discharge switch 15, uses the mode that anode is controlled that reaches; In addition, this charge switch 14 can be arranged at discharge switch 15 negative pole end 17 (not shown) that lithium is battery pack 1, is that charge switch 14 is connected with negative pole end 17 with discharge switch 15, uses the mode that negative terminal is controlled that reaches.
And aforesaid charger circuit for detecting 13, isolator 141 can be located at battery core group management system 12 inside or be located at battery core group management system 12 outsides or be located at lithium in the additional circuit mode is battery pack 1 outside; And an embodiment is attempted in this creation, charger circuit for detecting 13 can be located at lithium and be battery pack 1 inside, isolator 141 further can be located at charge switch 14 inside in addition.Battery core group management system 12 can be control integration circuit (IC), central processing unit (CPU), microprocessor (MCU) or program-controlled device (PLC) again, and its include a firmware, voltage detecting, current detecting, temperature detection, balance control, calculation of capacity, LED driving, timer (Timer), communication port (as: SMBUS, RS232,, RS485, CANBUS, RS422 ... Deng).
when lithium is that battery module is parallel to when charging, be that lithium is battery module access in parallel one preset charged device, be that the set charger circuit for detecting 13 of battery pack 1 has detected the charger access by each lithium, and send a triggering signal (detection signal) to battery core group management system 12 by charger circuit for detecting 13, be battery pack 1 and transmit a triggering signal (detection signal) to master control lithium by battery core group management system 12 through data line 2, and when the master control lithium be battery pack 1 receive each lithium be battery pack 1 when transmitting the triggering signal (detection signal) that has detected the charger access, be that battery pack 1 send another triggering signal (charging signals) and through data line 2 be sent to battery core group management system 12 that each lithium be battery pack 1 by the master control lithium this moment, reach to be that battery pack 1 notifies through data line 2 other each lithium is whether battery pack 1 decision carries out charging by the master control lithium, and each lithium to be battery pack 1 charge according to required electric weight, by each lithium to be 12 control charge switch 14 conductings (ON) of the set battery core group management system of battery pack 1, making each lithium is that battery pack 1 is charged according to required electric weight, and each lithium be battery pack 1 can be by battery core group management system 12 in order to monitor the state of charge of battery core group 11, making each lithium is that (one group of charging is completed and changed one group again in battery pack 1 single charging in parallel, complete in proper order charging) or the purpose of synchronous charging in parallel (in parallel use battery module charge simultaneously), each lithium that reaches identical characteristics or non-identical characteristics is that battery pack 1 tool is managed the electric weight charging mechanism voluntarily, when lithium is the electric weight of battery core group 11 of battery pack 1 when saturated, can transmit a signal (saturated notification signal) to master control lithiums by battery core group management system 12 through data line 2 again be battery pack 1, and controls charge switch 14 open circuit (OFF).In addition, when each lithium is that battery pack 1 is in charging process, can be that between battery pack 1, the contrary of power supply fills in order to intercept each lithium by set isolator 141, avoid because of each lithium be that between battery pack 1, the contrary of power supply fills, be that overcharge conditions occurs battery pack 1 and cause some lithium, and then cause the damage of lithium battery, and the firmware that sees through battery core group management system 12 solves the heat that produces because of isolator 141.
when lithium is that battery module is connected in parallel a load when discharging operation, can be that the battery core group management system 12 of battery pack 1 is in order to monitor the state of charge of battery core group 11 by each lithium, namely each lithium in parallel is that battery pack 1 sees through transfer of data and exchange to decide each lithium be that battery pack 1 is that (one group is discharged and changes other one group again in single discharge, until all battery pack are discharged) or synchronous discharge in parallel (in parallel to use lithium be that battery pack is discharged simultaneously, until all battery pack are discharged), reach tool and manage voluntarily corona discharge mechanism, be 12 controlled discharge switch 15 conductings (ON) of the set battery core group management system of battery pack 1 to utilize each lithium, until load is pulled out or the electric weight of battery core group 11 is discharged, this moment is again by battery core group management system 12 controlled discharge switches 15 open circuit (OFF).
Please coordinate and consult shown in the 3rd figure, for lithium of the present invention is battery module the second embodiment configuration diagram in parallel, wherein, each lithium is that battery pack 1 can be connected with a wireless transceiver 3 via data line 2, making lithium is that the data-signal of battery pack 1 can be sent to wireless transceiver 3 via data line 2, by wireless transceiver 3, data-signal is sent with wireless mode again, the wireless transceiver 3 that is battery pack 1 for another lithium receives, and uses that to reach each lithium be that data-signal between battery pack 1 can the wireless mode transmission; In addition, each lithium is to set wherein by a default firmware between battery pack 1 that a lithium is that battery pack 1 is battery pack 1 as the master control lithium of issuing order.
Please coordinate and consult shown in the 4th figure, for lithium of the present invention is battery module the 3rd embodiment configuration diagram in parallel, wherein, each lithium is that battery pack 1 can be connected with a control device 4 via data line 2, making each lithium is that the data-signal of battery pack 1 can be sent to control device 4 via data line 2, after being received the data-signal that each lithiums are battery pack 1 and processed by control device 4, can sending one, to control signal to each lithium be battery pack 1, is namely the main control unit 4 of battery pack 1 as each lithium.
Please coordinate and consult shown in the 5th figure, for lithium of the present invention is battery module the 4th embodiment configuration diagram in parallel, wherein, each lithium is that battery pack 1 can be connected with a wireless transceiver 3 via data line 2, and the lithium of this creation is that the battery module parallel connection can further include a control device 4, and control device 4 is connected with a wireless transceiver 3; By this, each lithium is that the data-signal of battery pack 1 can be sent to wireless transceiver 3 via data line 2, by wireless transceiver 3, data-signal is sent with wireless mode again, wireless transceiver 3 for control device 4 receives, making each lithium is that the data-signal of battery pack 1 can be sent to control device 4 by wireless mode, after receiving by control device 4 data-signal and processing that each lithium is battery pack 1, controlling signal to each lithium with wireless mode transmission one again is battery pack 1, is namely the main control unit 4 of battery pack 1 as each lithium.
In sum, the lithium of at least two or two above identical characteristics of the technical characterictic general of system of the present invention or non-identical characteristics is that battery pack 1 links setting mutually with parallel way, wherein lithium be battery pack 1 to be provided with a charger circuit for detecting 13 be whether battery pack 1 carries out charged state in order to detect lithium, and to be provided with an isolator 141 be that between battery pack 1, the contrary of power supply fills in order to intercept each lithium; And to see through each lithium be that the set battery core group management system 12 of battery pack 1 can be managed its discharge mechanism voluntarily, and reaching to be that battery pack 1 is carried out the charge and discharge operation simultaneously with the lithium of at least two or two above identical characteristics or non-identical characteristics.
The above person only is preferred embodiment of the present invention, is not to limit the scope that this creation is implemented; Therefore done equivalence or variation person easily when haveing the knack of this skill, as increased some basic circuit component or systems, but changed and modify not breaking away from the equalization of doing under the scope of the invention, all should be covered by in the scope of the claims of this creation.
Claims (10)
1. the lithium of a module parallel connection is battery, and the lithium that includes more than at least two or two is battery pack, and these lithiums are that battery pack is mutually to link setting with parallel way, and wherein lithium is that battery pack comprises having:
At least one battery core group, include a plurality of battery cores mutually connect consist of;
One battery core group management system is and the battery core group is electrically connected that in order to monitoring the electric weight of battery core group, and the battery core group management system can be in order to receive and to send data-signal;
One charger circuit for detecting is to be electrically connected with the battery core group management system, in order to detect the connection status that lithium is battery pack and a charger;
One charge switch is and the battery core group is electrically connected that in order to the control of doing the external power source conducting or opening circuit, and charge switch includes an isolator, is that between battery pack, the contrary of power supply fills in order to intercept each lithium;
One discharge switch is to be electrically connected with the battery core group, in order to the control of doing the external power source conducting or opening circuit.
2. the lithium of module parallel connection as described in claims 1 is battery, and wherein these lithiums are that battery pack has identical characteristics or non-identical characteristics.
3. the lithium of module parallel connection as described in claims 1 is battery, and it is inner that wherein this charger circuit for detecting, isolator can be located at the battery core group management system.
4. the lithium of module parallel connection as described in claims 1 is battery, and it is outside that wherein this charger circuit for detecting, isolator can be located at the battery core group management system.
5. the lithium of module parallel connection as described in claims 1 is battery, and wherein can be located at lithium be that battery pack is outside for this charger circuit for detecting, isolator.
6. the lithium of module parallel connection as described in claims 1 is battery, and wherein this isolator can be diode.
7. the lithium of module parallel connection as described in claims 1 is battery, and wherein this isolator can be metal-oxide half field effect transistor (MOSFET).
8. the lithium of module parallel connection as described in claims 1 is battery, wherein this each lithium is battery pack the battery core group management system can be connected with a data line, and each data line phase mutual connection is established the connection conducting, is the transmission of date number between battery pack but make each lithium.
9. the lithium of module parallel connection as described in claims 1 is battery, wherein this each lithium is battery pack the battery core group management system can be connected with a data line, and data line is connected with a wireless transceiver, and making each lithium is that data-signal between battery pack can the wireless mode transmission.
10. the lithium of module parallel connection as described in claims 1 is battery, wherein this each lithium is battery pack the battery core group management system can be connected with a data line, and data line is connected with a control device, and the data-signal that each lithium is battery pack can be sent to control device via data line, by control device receive each lithium be the data-signal of battery pack and process after, can sending one, to control signal to each lithium be battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110371929.1A CN103123991B (en) | 2011-11-18 | 2011-11-18 | The lithium system battery of wired in parallel |
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|---|---|---|---|
| CN201110371929.1A CN103123991B (en) | 2011-11-18 | 2011-11-18 | The lithium system battery of wired in parallel |
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| CN103123991A true CN103123991A (en) | 2013-05-29 |
| CN103123991B CN103123991B (en) | 2018-02-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104167800A (en) * | 2014-09-02 | 2014-11-26 | 安徽工程大学 | Lithium battery management system and method capable of expanding communication standby power supply |
| CN105322605A (en) * | 2014-04-18 | 2016-02-10 | 智富科技国际有限公司 | Rechargeable battery and management method of rechargeable battery |
| CN108461834A (en) * | 2018-02-12 | 2018-08-28 | 维沃移动通信有限公司 | A kind of battery pack structure, mobile terminal and charge/discharge control method |
| CN109149671A (en) * | 2017-06-19 | 2019-01-04 | 威艾能源有限公司 | A kind of battery pack device |
| CN109449514A (en) * | 2018-12-07 | 2019-03-08 | 深圳市海盈科技有限公司 | A kind of Li-ion batteries piles |
| CN114268137A (en) * | 2020-09-16 | 2022-04-01 | 北京小米移动软件有限公司 | Charging and discharging circuit, charging and discharging control method and electronic equipment |
| CN114335761A (en) * | 2020-10-10 | 2022-04-12 | 南京泉峰科技有限公司 | Battery pack, battery pack power supply method and electric tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114335761B (en) * | 2020-10-10 | 2024-08-27 | 南京泉峰科技有限公司 | Battery pack, battery pack power supply method and electric tool |
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Address after: 518000 South District of Nanshan High-tech Industrial Park, Shenzhen City, Guangdong Province, 418-420, Industry, Education and Research Building, Hong Kong Polytechnic University, No. 18, Yuexingdao, South District, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Delong Kinetic Energy Technology (Shenzhen) Co., Ltd. Address before: 518000 South District of Nanshan High-tech Industrial Park, Shenzhen City, Guangdong Province, 418-420, Industry, Education and Research Building, Hong Kong Polytechnic University, No. 18, Yuexingdao, South District, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Delong Weichuang Technology (Shenzhen) Co., Ltd. |
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