CN108233484B - Lithium titanate battery module electricity supplementing power supply electric system - Google Patents
Lithium titanate battery module electricity supplementing power supply electric system Download PDFInfo
- Publication number
- CN108233484B CN108233484B CN201810131908.4A CN201810131908A CN108233484B CN 108233484 B CN108233484 B CN 108233484B CN 201810131908 A CN201810131908 A CN 201810131908A CN 108233484 B CN108233484 B CN 108233484B
- Authority
- CN
- China
- Prior art keywords
- power supply
- battery
- discharge
- battery pack
- module
- 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.)
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000005611 electricity Effects 0.000 title claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 14
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a lithium titanate battery module electricity supplementing power supply electric system, which comprises a battery pack, a charging circuit and a plurality of discharging circuits, wherein the battery pack is connected with the charging circuit; the charging circuit comprises a mains supply interface, a charging switch and a switching power supply, wherein the input end of the switching power supply is connected with the mains supply interface, and the output end of the switching power supply is connected with two poles of the battery pack through the charging switch; each path of discharging circuit comprises a DCDC voltage reducing module, a discharging switch and a discharging interface, wherein two poles of the battery pack are connected with the input end of the DCDC voltage reducing module through the discharging switch, and the output end of the DCDC voltage reducing module is connected with the discharging interface; the output end of the DCDC voltage reduction module is provided with an adjustable potentiometer. According to the application, through adjusting the potentiometer at the output end of the DCDC voltage reduction module, after the output voltage and the output current are set, the output voltage can be controlled while the large current is output, the lithium titanate battery module can be protected from being overcharged, and the method is particularly suitable for supplementing electricity to the lithium titanate battery module.
Description
[ technical field ]
The application relates to the technical field of lithium battery charge and discharge control, in particular to an electric system of a power supply suitable for lithium titanate battery module electricity supplementing.
Background art
With the rapid development of new energy automobile technology, new energy automobiles mainly comprising electric automobiles have gradually opened markets and come into the lives of people. The electric automobile comprises a power battery for providing a power source and a low-voltage battery for supplying power to the electric appliance for the whole automobile, and when the electric quantity of the low-voltage battery is exhausted, the electric appliance for the whole automobile cannot be used.
In the prior art, some power supply electric systems for realizing power supply are used for controlling a power battery of an electric automobile to charge a low-voltage battery. However, most of the existing power supply electric systems are suitable for supplementing electricity to ternary, lithium cobaltate and lithium iron phosphate battery modules, and the lithium titanate battery packs are easy to cause overcharging of the battery packs or small output current, so that the working efficiency is reduced.
Summary of the application
The application aims to provide an electric system for a lithium titanate battery module electricity supplementing power supply of an electric bus, which can be used for single electricity supplementing of various lithium titanate battery modules.
In order to achieve the above object, the present application adopts the following technical scheme:
a lithium titanate battery module electricity supplementing power supply electric system comprises a battery pack, a charging circuit and a plurality of discharging circuits; the charging circuit comprises a mains supply interface, a charging switch and a switching power supply, wherein the input end of the switching power supply is connected with the mains supply interface, and the output end of the switching power supply is connected with two poles of the battery pack through the charging switch; each path of discharging circuit comprises a DCDC voltage reducing module, a discharging switch and a discharging interface, wherein two poles of the battery pack are connected with the input end of the DCDC voltage reducing module through the discharging switch, and the output end of the DCDC voltage reducing module is connected with the discharging interface; the output end of the DCDC voltage reduction module is provided with an adjustable potentiometer.
As a further technical scheme, the power supply electrical system further comprises a battery protection plate, wherein each battery positive electrode pin of the battery protection plate is respectively connected with the positive electrode of each battery of the battery pack, and each battery negative electrode pin of the battery protection plate is connected with the negative electrode of the battery pack.
As a further technical scheme, the power supply electrical system further comprises a shunt and a double-display meter head of the voltmeter, and the shunt and the double-display meter head are connected between the output negative electrode of the battery protection plate and the positive electrode of the battery pack.
As a further technical scheme, the charging circuit further comprises a fan and is connected to two ends of the mains supply interface in parallel.
As a further technical scheme, each path of discharging circuit further comprises a fan and is connected with the output end of the DCDC voltage reduction module in parallel.
As a further technical scheme, each path of discharge circuit further comprises a voltage display gauge head for detecting the input voltage and the output voltage of the discharge circuit.
As a specific technical scheme, the discharge interface is an EC5 type socket.
As a specific technical scheme, the charging switch and the discharging switch are both ship-shaped switches.
According to the power supply electrical system provided by the application, after the output voltage and the output current are set by adjusting the potentiometer at the output end of the DCDC voltage reduction module, the output voltage can be controlled while the high current is output, the lithium titanate battery module can be protected from being overcharged, and the power supply electrical system is particularly suitable for supplementing electricity to the lithium titanate battery module. The application has the advantages that: the DCDC module is convenient to update after replacement; high cost performance; the safety and reliability are realized; the operation efficiency is improved.
Description of the drawings
Fig. 1 is a schematic circuit diagram of an electrical system of a lithium titanate battery module power supply according to an embodiment of the present application.
Best mode for carrying out the application
As shown in fig. 1, the electrical system for the lithium titanate battery module power supply provided in this embodiment includes a battery pack 1, a charging circuit and a plurality of discharging circuits (two discharging circuits in fig. 1).
The charging circuit comprises a delta-shaped socket 10, a first ship-shaped switch 2, a switching power supply 3 and a first fan 5, wherein the input end of the switching power supply 3 is connected with the delta-shaped socket 10, and the output end of the switching power supply is connected with two poles of the battery pack 1 through the first ship-shaped switch 2. The delta-shaped socket 10 is used as a mains supply interface, the mains supply of AC220V is connected in, the switching power supply 3 converts the mains supply of AC220V into DC15V voltage for supplying power to the battery pack 1, and the first fan 5 is connected to two ends of the mains supply interface in parallel.
Taking one path of discharging circuit as an example for illustration, the discharging circuit comprises a DCDC voltage reducing module 4, a second ship-shaped switch 2, an EC5 socket 11, a voltmeter 7 and a second fan 5, wherein two poles of the battery pack 1 are connected with the input end of the DCDC voltage reducing module 4 through the second ship-shaped switch 2, and the output end of the DCDC voltage reducing module 4 is connected with the EC5 socket 11 and the second fan 5. The EC5 socket 11 is used as a discharging interface and is connected with the lithium titanate battery module, the DCDC voltage reduction module 4 converts the voltage output of DC15V of the battery pack 1 into the voltage output of DC2.65V used for charging the lithium titanate battery module, and the output end of the DCDC voltage reduction module 4 is provided with an adjustable potentiometer.
The lithium titanate battery module electricity supplementing power supply electric system further comprises a voltage ammeter double-display gauge head 6, a protection plate 8 and a shunt 9. The battery protection board 8 adopts the existing product, and aims to charge and discharge the serial lithium battery pack, the positive electrode pins of the batteries of the battery protection board 8 are respectively connected with the positive electrodes of the batteries of the battery pack 1, and the negative electrode pins of the batteries of the battery protection board 8 are connected with the negative electrode of the battery pack 1. The shunt 9 and the voltmeter double-display gauge outfit 6 are connected between the output cathode of the battery protection plate 8 and the anode of the battery pack 1. The voltage ammeter double-display gauge outfit 6, the battery protection board 8 and the shunt 9 are integrated together to provide voltage and low voltage and overcurrent monitoring protection for power output.
The working principle of the lithium titanate battery module electricity supplementing power supply electric system is as follows:
charging mode: the AC220V commercial power is communicated through the delta-shaped socket 10, and enters the input end (in end) of the switch power supply 3, the switch power supply 3 converts the AC220V alternating current into 15V direct current, and the out end of the switch power supply 3 serves as a charging power supply of the battery pack 1.
Discharge mode: the current flows out from the positive electrode of the battery pack 1, passes through the input end (in end) of the DCDC voltage reduction module 4, the DCDC voltage reduction module 4 converts 15V direct current into 2.65V direct current, and the output end (out end) of the DCDC voltage reduction module 4 is connected with the lithium titanate battery module through the EC5 socket 11.
The above embodiments are merely for fully disclosing the present application, but not limiting the present application, and should be considered as the scope of the present disclosure based on the substitution of equivalent technical features of the inventive subject matter without creative work.
Claims (6)
1. A lithium titanate battery module electricity supplementing power supply electric system comprises a battery pack, a charging circuit and a plurality of discharging circuits; the method is characterized in that: the charging circuit comprises a mains supply interface, a charging switch and a switching power supply, wherein the input end of the switching power supply is connected with the mains supply interface, and the output end of the switching power supply is connected with two poles of the battery pack through the charging switch; the plurality of discharge circuits comprise at least two discharge circuits which are used for supplementing electricity to a single section of the lithium titanate battery module respectively, each discharge circuit comprises a DCDC voltage reduction module, a discharge switch and a discharge interface, two poles of the battery pack are connected with the input end of the DCDC voltage reduction module through the discharge switch, and the output end of the DCDC voltage reduction module is connected with the discharge interface; the output end of the DCDC voltage reduction module is provided with an adjustable potentiometer; the battery protection board is connected with the positive electrode of each battery of the battery pack respectively, and the negative electrode pin of the battery protection board is connected with the negative electrode of the battery pack; the shunt and the double-display gauge head of the voltmeter are connected between the output negative electrode of the battery protection plate and the positive electrode of the battery pack; the voltage ammeter double-display gauge head, the battery protection board and the shunt are integrated together to provide low voltage and overcurrent monitoring protection for power output.
2. The power electrical system of claim 1, wherein the charging circuit further comprises a fan connected across the mains interface.
3. The power electrical system of claim 1, wherein the discharge circuit further comprises a fan and is connected in parallel to the DCDC buck module output.
4. The power electrical system of claim 1, wherein the discharge circuit further comprises a voltage display header that detects the discharge circuit input and output voltages.
5. The power electrical system of claim 1, 3 or 4, wherein the discharge interface is an EC5 type socket.
6. The power electrical system of claim 1, wherein the charge switch and the discharge switch each employ a boat switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131908.4A CN108233484B (en) | 2018-02-08 | 2018-02-08 | Lithium titanate battery module electricity supplementing power supply electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131908.4A CN108233484B (en) | 2018-02-08 | 2018-02-08 | Lithium titanate battery module electricity supplementing power supply electric system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108233484A CN108233484A (en) | 2018-06-29 |
| CN108233484B true CN108233484B (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810131908.4A Active CN108233484B (en) | 2018-02-08 | 2018-02-08 | Lithium titanate battery module electricity supplementing power supply electric system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108233484B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753114A (en) * | 2013-12-31 | 2015-07-01 | 高宾 | Lithium-ion power battery pack charging energy-storage system |
| CN104810885A (en) * | 2015-04-14 | 2015-07-29 | 深圳市迈思普电子有限公司 | Quick charging portable power source |
| CN205092632U (en) * | 2015-11-20 | 2016-03-16 | 乐视致新电子科技（天津）有限公司 | Output voltage adjustable portable power source adaptation line |
| CN205960687U (en) * | 2016-07-07 | 2017-02-15 | 新际电子元件（杭州）有限公司 | Portable power source capable of being charged rapidly |
| CN206117129U (en) * | 2016-08-30 | 2017-04-19 | 深圳市佰泽电子有限公司 | Protection shield of lithium titanate battery |
| CN206712509U (en) * | 2017-05-08 | 2017-12-05 | 武汉城市职业学院 | A kind of lithium battery intelligent charging circuit |
| CN206742907U (en) * | 2017-04-25 | 2017-12-12 | 山东威林特新能源科技有限公司 | A kind of complete intelligent lithium titanate battery group management system |
| CN208272656U (en) * | 2018-02-08 | 2018-12-21 | 银隆新能源股份有限公司 | Lithium titanate battery mould group mends electric power sourced electric system |
-
2018
- 2018-02-08 CN CN201810131908.4A patent/CN108233484B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753114A (en) * | 2013-12-31 | 2015-07-01 | 高宾 | Lithium-ion power battery pack charging energy-storage system |
| CN104810885A (en) * | 2015-04-14 | 2015-07-29 | 深圳市迈思普电子有限公司 | Quick charging portable power source |
| CN205092632U (en) * | 2015-11-20 | 2016-03-16 | 乐视致新电子科技（天津）有限公司 | Output voltage adjustable portable power source adaptation line |
| CN205960687U (en) * | 2016-07-07 | 2017-02-15 | 新际电子元件（杭州）有限公司 | Portable power source capable of being charged rapidly |
| CN206117129U (en) * | 2016-08-30 | 2017-04-19 | 深圳市佰泽电子有限公司 | Protection shield of lithium titanate battery |
| CN206742907U (en) * | 2017-04-25 | 2017-12-12 | 山东威林特新能源科技有限公司 | A kind of complete intelligent lithium titanate battery group management system |
| CN206712509U (en) * | 2017-05-08 | 2017-12-05 | 武汉城市职业学院 | A kind of lithium battery intelligent charging circuit |
| CN208272656U (en) * | 2018-02-08 | 2018-12-21 | 银隆新能源股份有限公司 | Lithium titanate battery mould group mends electric power sourced electric system |
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| Publication number | Publication date |
|---|---|
| CN108233484A (en) | 2018-06-29 |
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