CN106602178A - Lithium battery heating system - Google Patents
Lithium battery heating system Download PDFInfo
- Publication number
- CN106602178A CN106602178A CN201710013070.4A CN201710013070A CN106602178A CN 106602178 A CN106602178 A CN 106602178A CN 201710013070 A CN201710013070 A CN 201710013070A CN 106602178 A CN106602178 A CN 106602178A
- Authority
- CN
- China
- Prior art keywords
- unit
- chip
- lithium battery
- heating
- main control
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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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
Abstract
The invention discloses a lithium battery heating system comprising a temperature signal collection unit, a main control unit and a first heating unit, wherein the temperature signal collection unit and the first heating unit are respectively connected with the main control unit. Compared with the prior art, the lithium battery heating system provided by the invention uses the temperature signal collection unit to collect a temperature parameter close to a battery panel, if the temperature parameter is lower than a value set by the main control unit, the main control unit drives the first heating unit to heat so as to improve the temperature of the battery panel, and thus the problem that the charging speed of a lithium battery is reduced in cold weather is solved.
Description
Technical field
The present invention relates to lithium cell charging technical field, more particularly to a kind of lithium battery heating system.
Background technology
Because " running of the battery under zero degree low temperature is unsatisfactory, and this has been long-standing problem, traditional battery
Serious kwh loss is can suffer from subfreezing temperature, so as to cause the charging rate under arctic weather to slow down,
In order to compensate " cold damage " problem caused for energy, heat-preservation cotton can be increased in set of cells, the so required set of cells for using is just
Become increasing, while increased product cost.
The content of the invention
The present invention provides a kind of lithium battery heating system, is filled under arctic weather with solving lithium battery of the prior art
Electric speed slows down, and in order to compensate " cold damage " problem caused for energy, heat-preservation cotton can be increased in set of cells, causes to use
Set of cells just become increasing, while increase product cost technical problem.
The technical scheme is that what is be achieved in that:
A kind of lithium battery heating system, including temperature signal collection unit, main control unit and the first heating unit, it is described
Temperature signal collection unit is connected respectively main control unit with the first heating unit, and the system also includes that cell plate voltage collection is single
Unit, the second heating unit, the cell plate voltage collecting unit and the second heating unit are connected respectively main control unit, and described first
Heating unit and the second heating unit are same heating unit.
Preferably, the main control unit adopts chip LM2904DRG3, the 1IN+ connection temperature signal collections of the chip
Unit, the 1OUT of chip connects the first heating unit, chip 2IN+ connection cell plate voltage collecting units, the 2OUT connections of chip
Second heating unit, the VCC of chip connects power supply, and GND, 1IN-, 2IN- of chip are grounded respectively.
Preferably, the temperature signal collection unit adopts thermal resistance temperature sensor.
Preferably, the cell plate voltage collecting unit includes voltage acquisition node, resistance R14, the resistance being sequentially connected in series
The other end connection chip 2IN+ of R12, the resistance R12.
Preferably, switching diode 1N4148 and voltage stabilizing are connected with turn between the resistance R14 and voltage acquisition node
Pipe 1N4734, wherein, the reverse cut-off end of resistance R14 connecting valve diode 1N4148, voltage acquisition node connection stabilivolt
The reverse cut-off end of 1N4734.
Compared with prior art, the invention has the advantages that:
The lithium battery heating system of the present invention, using temperature signal collection unit the temperature parameter near cell panel is gathered,
If the temperature parameter can then drive the first heating unit heats less than the value set by main control unit, main control unit, to improve
The temperature of cell panel, so as to solve the problems, such as arctic weather under lithium cell charging speed slow down.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic block circuit diagram of lithium battery heating system of the present invention;
Fig. 2 is the circuit theory diagrams of lithium battery heating system of the present invention;
Fig. 3 is the circuit theory diagrams of main control unit of the present invention.
In figure:Temperature signal collection unit 1, main control unit 2, the first heating unit 3, cell plate voltage collecting unit 4, the
Two heating units 5.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1 to Figure 2, a kind of lithium battery heating system, including temperature signal collection unit 1, main control unit 2 and
First heating unit 3, the temperature signal collection unit 1 is connected respectively main control unit 2 with the first heating unit 3.The system
Also include cell plate voltage collecting unit 4, the second heating unit 5, first heating unit 3 can be with the second heating unit 5
Same heating unit, the cell plate voltage collecting unit 4 is connected respectively main control unit 2, the temperature with the second heating unit 5
Signal gathering unit 1 respectively sends the temperature signal of respective collection, cell plate voltage signal with cell plate voltage collecting unit 4
To main control unit 2, then main control unit 2 compares above-mentioned Signal Regulation processing and amplifying with temperature and voltage reference value, if
The signal of collection is below reference value, then drive corresponding heating unit to work respectively, and the temperature reference value that the system is arranged is 4
DEG C, the first heating unit 3 starts heating automatically when less than this temperature, and cell plate voltage can gather the electricity between 6V-32V
Pressure signal.The voltage reference value that the system is arranged is 8V, and heating automatically is started when the voltage of cell panel is less than 8V, is passed through
Change temperature reference value and cell plate voltage can change the size of the cut-in voltage of the size and cell panel of collection external temperature.
The main control unit 2 adopts chip LM2904DRG3, such as Fig. 3, output driving part that the first heating list is driven using AOS MOS
Unit 3 or the heating work of the second heating unit 5, reach to the purpose of lithium battery heating.If the heater of driving more high current can
To change the MOS of more high standard, the 1IN+ connection temperature signal collections unit 1 of the chip, the 1OUT connections first of chip add
Hot cell 3, chip 2IN+ connection cell plate voltages collecting unit 4, the 2OUT of chip connects the second heating unit 5, the VCC of chip
Power supply is connect, GND, 1IN-, 2IN- of chip are grounded respectively.The temperature signal collection unit 1 adopts thermal resistance temperature sensor.
The cell plate voltage collecting unit 4 includes voltage acquisition node, resistance R14, the resistance R12 being sequentially connected in series, the resistance R12
The other end connection chip 2IN+.Switching diode 1N4148 is connected with turn between the resistance R14 and voltage acquisition node
With stabilivolt 1N4734, wherein, the reverse cut-off end of resistance R14 connecting valve diode 1N4148, voltage acquisition node connection
The reverse cut-off end of stabilivolt 1N4734, is formed using stabilivolt 1N4734 and switching diode 1N4148 combination settings.If
The voltage of cell panel does not reach the reverse cut-in voltages of stabilivolt 1N4734 and would not turn on, and such cell panel collecting part would not
Work, reduces the purpose of loss.
Knowable to the structure and principle of the comprehensive present invention, the lithium battery heating system of the present invention, using temperature signal collection list
Temperature parameter near unit's collection cell panel, if the temperature parameter is less than the value set by main control unit, main control unit then can
Drive the first heating unit heats, to improve the temperature of cell panel, so as to solve arctic weather under lithium cell charging speed
The problem for slowing down.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of lithium battery heating system, it is characterised in that including temperature signal collection unit, main control unit and the first heating
Unit, the temperature signal collection unit is connected respectively main control unit with the first heating unit, and the system also includes cell panel
Voltage acquisition unit, the second heating unit, the cell plate voltage collecting unit is connected respectively master control list with the second heating unit
Unit, first heating unit and the second heating unit are same heating unit.
2. a kind of lithium battery heating system according to claim 1, it is characterised in that the main control unit adopts chip
LM2904DRG3, the 1IN+ connection temperature signal collection units of the chip, the 1OUT of chip connects the first heating unit, chip
2IN+ connects cell plate voltage collecting unit, and the 2OUT of chip connects the second heating unit, and the VCC of chip connects power supply, chip
GND, 1IN-, 2IN- are grounded respectively.
3. a kind of lithium battery heating system according to claim 4, it is characterised in that the temperature signal collection unit is adopted
Use thermal resistance temperature sensor.
4. a kind of lithium battery heating system according to claim 3, it is characterised in that the cell plate voltage collecting unit
Including the voltage acquisition node, resistance R14, the resistance R12 that are sequentially connected in series, the other end connection chip 2IN+ of the resistance R12.
5. a kind of lithium battery heating system according to claim 4, it is characterised in that the resistance R14 and voltage acquisition
It is connected with switching diode 1N4148 and stabilivolt 1N4734 between node in turn, wherein, resistance R14 connecting valve diodes
The reverse cut-off end of 1N4148, voltage acquisition node connects the reverse cut-off end of stabilivolt 1N4734.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710013070.4A CN106602178A (en) | 2017-01-09 | 2017-01-09 | Lithium battery heating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710013070.4A CN106602178A (en) | 2017-01-09 | 2017-01-09 | Lithium battery heating system |
Publications (1)
Publication Number | Publication Date |
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CN106602178A true CN106602178A (en) | 2017-04-26 |
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CN201710013070.4A Pending CN106602178A (en) | 2017-01-09 | 2017-01-09 | Lithium battery heating system |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101651325A (en) * | 2008-08-15 | 2010-02-17 | 上海益而益电器制造有限公司 | Electric leakage detection protector |
WO2013079983A1 (en) * | 2011-12-02 | 2013-06-06 | Rimac Automobili D.O.O. | System and process for mantaining of working temeperature of battery cells for starter accumulators in vehicles |
CN103390778A (en) * | 2012-05-08 | 2013-11-13 | 海洋王照明科技股份有限公司 | LED light fixture and lithium battery heating circuit thereof |
CN103560304A (en) * | 2013-11-19 | 2014-02-05 | 东风汽车公司 | Heating control method of power battery pack of electric vehicle |
CN205104589U (en) * | 2015-10-13 | 2016-03-23 | 江苏华富储能新技术股份有限公司 | A heating control circuit for lithium ion battery |
CN105826619A (en) * | 2015-01-05 | 2016-08-03 | 北京长城华冠汽车科技有限公司 | Constant-temperature thermal management system for lithium-ion power battery pack |
-
2017
- 2017-01-09 CN CN201710013070.4A patent/CN106602178A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101651325A (en) * | 2008-08-15 | 2010-02-17 | 上海益而益电器制造有限公司 | Electric leakage detection protector |
WO2013079983A1 (en) * | 2011-12-02 | 2013-06-06 | Rimac Automobili D.O.O. | System and process for mantaining of working temeperature of battery cells for starter accumulators in vehicles |
CN103390778A (en) * | 2012-05-08 | 2013-11-13 | 海洋王照明科技股份有限公司 | LED light fixture and lithium battery heating circuit thereof |
CN103560304A (en) * | 2013-11-19 | 2014-02-05 | 东风汽车公司 | Heating control method of power battery pack of electric vehicle |
CN105826619A (en) * | 2015-01-05 | 2016-08-03 | 北京长城华冠汽车科技有限公司 | Constant-temperature thermal management system for lithium-ion power battery pack |
CN205104589U (en) * | 2015-10-13 | 2016-03-23 | 江苏华富储能新技术股份有限公司 | A heating control circuit for lithium ion battery |
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Application publication date: 20170426 |
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