CN106600885A - Safety monitoring and early warning system for lithium battery power of new energy automobile and early warning method - Google Patents
Safety monitoring and early warning system for lithium battery power of new energy automobile and early warning method Download PDFInfo
- Publication number
- CN106600885A CN106600885A CN201710039469.XA CN201710039469A CN106600885A CN 106600885 A CN106600885 A CN 106600885A CN 201710039469 A CN201710039469 A CN 201710039469A CN 106600885 A CN106600885 A CN 106600885A
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery case
- patient
- abnormal smells
- early warning
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- 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 safety monitoring and early warning system for lithium battery power of a new energy automobile. The system is composed of a shell, wherein the shell is arranged in a lithium battery box; a signal processing unit is arranged in the shell; the input end of the signal processing unit is respectively in electric connection with the output ends of a wide-range temperature sensor and a smell convertor; the output end of the signal processing unit is connected with a communication interface; the communication interface is electrically connected with a system controller through a connecting line; the system controller is electrically connected with a temperature smell state display; the input ends of the wide-range temperature sensor and the smell convertor are electrically connected with the output end of a thermostatic controller. The sensor which is high in temperature and smell sensitivity and high in stability is used by the system; the working area is divided into three areas, namely, safe, abnormal and dangerous areas; when the battery box is in a dangerous state, the battery box is immediately treated; the detection before smog generation can be realized; the serious accidents of complete damage and combustion explosion of the battery box can be avoided.
Description
Technical field
The present invention relates to new forms of energy lithium battery technical field of vehicle security detection, specially a kind of new-energy automobile lithium battery
Power safety monitoring and warning system and method for early warning.
Background technology
In recent years, dynamic lithium battery new-energy automobile has moved towards market, and this battery car is generally used several as power
Battery case（Hundreds of battery unit is included per case）, up to more than ten battery case, the short circuit of Individual cells, heating will cause
The heating of battery, expansion, deformation is burnt.
The problem that cell safety need to have been solved into the field pole, existing market is directed to the safety detection of lithium battery box, almost
It is to be managed based on BMS, and smoke detection.BMS has to be prevented from overcharging, avoided putting, temperature control, keep battery component voltage and
The function managements such as hygral equilibrium, the dump energy of prediction battery and remaining driving mileage, but lithium battery damage cannot be carried out pre-
Survey, main detection temperature is produced with smog.But, it is often day after the fair when battery case detects smog, therewith
What is come is exactly burning and blast, and not leaving enough time to human pilot carries out emergent management.
The actual observation in modern age finds that battery case is that temperature steeply rises before smoke mist, first, causes electricity with research
The expansion of pool unit, forms crack, and electrolyte overflows, and what is be succeeded by is the generation of abnormal smells from the patient.Due to different types of lithium battery
The electrolyte for using is different, and the gas of generation has hydrogen, also imflammable gas, produces abnormal smells from the patient varied.Temperature is drastically
Rise, the enriching with abnormal smells from the patient will cause smog to produce, finally burn, explode.
When battery further deteriorates, produce high temperature, smolder, after-combustion, blast arrive immediately, at this moment can give driver and crew
Corresponding counter-measure is taken, the time just seldom, there need to be a technology, be exactly electricity before lithium battery box is not reaching to smolder
In the stage that pond case occurs in dangerous high temperature and gas with abnormal smells from the patient, safety monitoring signal is sent, be current new forms of energy car lithium battery
Car urgent task.
The content of the invention
It is an object of the invention to provide a kind of new-energy automobile lithium battery power safety monitoring and warning system and the pre- police
Method, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, the present invention provides following technical scheme：A kind of new-energy automobile lithium battery power safety prison
Detection early warning system, its composition includes：Shell, described shell is placed in lithium battery and thinks interior, and described inside the shell is provided with signal
Reason unit, the input of described signal processing unit is respectively at wide-range temperature sensor and the output of olfactive transducer
End is electrically connected with, the outfan connecting communication interface of described signal processing unit, described communication interface by connecting line with
System controller is electrically connected with, and described system controller is electrically connected with temperature abnormal smells from the patient status displayies, described wide-range
The input of temperature sensor and olfactive transducer is electrically connected with the outfan of radiator valve.
Preferably, the method for early warning of described new-energy automobile lithium battery power safety monitoring and warning system, olfactive
Transducer, the gas produced in battery case, complicated abnormal smells from the patient are converted to voltage signal；Wide-range temperature sensor, with spy
Different element NTC and circuit, the temperature in conversion battery case is magnitude of voltage, and the temperature change in battery case is converted to the big of the three ten-day period of hot season
Voltage output, is easy to the division in safety, hazardous area, signal processing unit the voltage signal of abnormal smells from the patient and temperature to be processed, Jing
Communication interface circuit, by biography line, is sent to system controller, is shown by temperature abnormal smells from the patient status displayies, radiator valve, is responsible for electricity
The temperature constant state of pond case safety detection unit.Olfactive conversion is kept to be in temperature constant state with temperature transition, it is ensured that detection
Accuracy, early warning is mainly made up of two partition sections：Part I is temperature subregion, when the temperature of battery case is less than 40 DEG C,
Mean that significant local pyrexia does not occur in the battery case, battery case is in safe operation state, in temperature safety area,（Ⅰ）；
When temperature rises to 40 DEG C to 75 DEG C, belong to temperature anomaly area, existing percentage of batteries fever expansion, in temperature anomaly area
（Ⅱ）；When temperature is in 75 DEG C -100 DEG C, some battery-heatings are seriously very much, in temperature hazardous area（Ⅲ）；Second
Point it is subregion that abnormal smells from the patient occurs, when odorousness is in below 150PPM in battery case, belongs to inappreciable gas concentration, is
Abnormal smells from the patient place of safety（Ⅰ）；Existing some cell expansions in battery case, produce crack, electrolyte abnormal smells from the patient and start to overflow, and concentration is in
It is abnormal smells from the patient exceptions area between 150-500PPM（Ⅱ）；Battery crack increases, and odorousness is reached between 500-1000PPM, gas
Taste is in hazardous area（Ⅲ）；When temperature and abnormal smells from the patient are all in hazardous area, burning may occur with blast, and this state should
Take immediate steps, the battery case was turned off before combustion explosion
Compared with prior art, the invention has the beneficial effects as follows：The new-energy automobile lithium battery power safety monitoring and warning system
Using temperature and abnormal smells from the patient high sensitivity, the sensor of high stability, to the Division safety that works, exception and dangerous three regions,
When certain battery case is in the hole, the battery case is processed immediately, it is possible to achieve visited before smog is produced
Survey, release battery case is damaged completely, the major accident of combustion explosion.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1st, shell, 2, communication interface, 3, connecting line, 4, system controller, 5, temperature abnormal smells from the patient status displayies, 6,
Signal processing unit, 7, wide-range temperature sensor, 8, olfactive transducer, 9, radiator valve.
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.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：
Embodiment 1：
A kind new-energy automobile lithium battery power safety monitoring and warning system, its composition includes：Shell 1, described shell 1 is put
In lithium battery is thought, signal processing unit 6 is provided with described shell 1, the input of described signal processing unit 6 is distinguished
Be electrically connected with the outfan of wide-range temperature sensor 7 and olfactive transducer 8, described signal processing unit 6 it is defeated
Go out to hold connecting communication interface 2, described communication interface 2 to be electrically connected with system controller 4 by connecting line 3, described system
Controller 4 is electrically connected with temperature abnormal smells from the patient status displayies 5, described wide-range temperature sensor 7 and olfactive transducer 8
The outfan of input and radiator valve 9 be electrically connected with.
Embodiment 2：
The method for early warning of the new-energy automobile lithium battery power safety monitoring and warning system according to embodiment 1, olfactive
Transducer, the gas produced in battery case, complicated abnormal smells from the patient are converted to voltage signal；Wide-range temperature sensor, with spy
Different element NTC and circuit, the temperature in conversion battery case is magnitude of voltage, and the temperature change in battery case is converted to the big of the three ten-day period of hot season
Voltage output, is easy to the division in safety, hazardous area, signal processing unit the voltage signal of abnormal smells from the patient and temperature to be processed, Jing
Communication interface circuit, by biography line, is sent to system controller, is shown by temperature abnormal smells from the patient status displayies, radiator valve, is responsible for electricity
The temperature constant state of pond case safety detection unit.Olfactive conversion is kept to be in temperature constant state with temperature transition, it is ensured that detection
Accuracy, early warning is mainly made up of two partition sections：
Part I is temperature subregion, when the temperature of battery case is less than 40 DEG C, means that significant office does not occur in the battery case
Portion generates heat, and battery case is in safe operation state, in temperature safety area,（Ⅰ）；When temperature rises to 40 DEG C to 75 DEG C, belong to
Temperature anomaly area, existing percentage of batteries fever expansion, in temperature anomaly area（Ⅱ）；When temperature is in 75 DEG C -100 DEG C, have
Battery-heating is seriously very much, in temperature hazardous area（Ⅲ）；Part II is the subregion that abnormal smells from the patient occurs, when gas in battery case
Taste concentration is in below 150PPM, belongs to inappreciable gas concentration, is abnormal smells from the patient place of safety（Ⅰ）；It is existing in battery case
Cell expansion, produces crack, electrolyte abnormal smells from the patient and starts to overflow, and concentration is abnormal smells from the patient exceptions area between 150-500PPM
（Ⅱ）；Battery crack increases, and odorousness is reached between 500-1000PPM, and abnormal smells from the patient is in hazardous area（Ⅲ）；When temperature and gas
When taste is all in hazardous area, burning may occur with blast, and this state should take immediate steps, before combustion explosion
Turn off the battery case
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, it is possible to understand that
These embodiments can be carried out without departing from the principles and spirit of the present invention with various changes, modification, replacement and become
Type, the scope of the present invention be defined by the appended.
Claims (3)
1. a kind of new-energy automobile lithium battery power safety monitoring and warning system, its composition includes：Shell（1）, it is characterized in that：Institute
The shell stated（1）It is placed in lithium battery and thinks interior, described shell（1）Inside it is provided with signal processing unit（6）, described signal processes
Unit（6）Input respectively at wide-range temperature sensor（7）With olfactive transducer（8）Outfan be electrically connected with,
Described signal processing unit（6）Outfan connecting communication interface（2）, described communication interface（2）By connecting line（3）With
System controller（4）It is electrically connected with, described system controller（4）With temperature abnormal smells from the patient status displayies（5）It is electrically connected with, it is described
Wide-range temperature sensor（7）With olfactive transducer（8）Input and radiator valve（9）Outfan electrically connect
Connect.
2. the method for early warning of new-energy automobile lithium battery power safety monitoring and warning system according to claim 1, it is special
Levying is：Olfactive transducer, the gas produced in battery case, complicated abnormal smells from the patient are converted to voltage signal；Wide-range temperature
Degree sensor, with particular components NTC and circuit, the temperature in conversion battery case is magnitude of voltage, the temperature change in battery case
The big voltage output of the three ten-day period of hot season is converted to, is easy to the division in safety, hazardous area, signal processing unit, abnormal smells from the patient and the voltage of temperature
Signal is processed, Jing communication interface circuits, by biography line, is sent to system controller, is shown by temperature abnormal smells from the patient status displayies, permanent
Temperature controller, is responsible for the temperature constant state of battery case safety detection unit.
3. keep olfactive conversion to be in temperature constant state with temperature transition, it is ensured that the accuracy of detection, early warning is mainly by two points
Area part constitutes：
Part I is temperature subregion, when the temperature of battery case is less than 40 DEG C, means that significant office does not occur in the battery case
Portion generates heat, and battery case is in safe operation state, in temperature safety area,（Ⅰ）；When temperature rises to 40 DEG C to 75 DEG C, belong to
Temperature anomaly area, existing percentage of batteries fever expansion, in temperature anomaly area（Ⅱ）；When temperature is in 75 DEG C -100 DEG C, have
Battery-heating is seriously very much, in temperature hazardous area（Ⅲ）；Part II is the subregion that abnormal smells from the patient occurs, when gas in battery case
Taste concentration is in below 150PPM, belongs to inappreciable gas concentration, is abnormal smells from the patient place of safety（Ⅰ）；It is existing in battery case
Cell expansion, produces crack, electrolyte abnormal smells from the patient and starts to overflow, and concentration is abnormal smells from the patient exceptions area between 150-500PPM
（Ⅱ）；Battery crack increases, and odorousness is reached between 500-1000PPM, and abnormal smells from the patient is in hazardous area（Ⅲ）；When temperature and gas
When taste is all in hazardous area, burning may occur with blast, and this state should take immediate steps, before combustion explosion
Turn off the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039469.XA CN106600885A (en) | 2017-01-19 | 2017-01-19 | Safety monitoring and early warning system for lithium battery power of new energy automobile and early warning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039469.XA CN106600885A (en) | 2017-01-19 | 2017-01-19 | Safety monitoring and early warning system for lithium battery power of new energy automobile and early warning method |
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| Publication Number | Publication Date |
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| CN106600885A true CN106600885A (en) | 2017-04-26 |
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| CN201710039469.XA Pending CN106600885A (en) | 2017-01-19 | 2017-01-19 | Safety monitoring and early warning system for lithium battery power of new energy automobile and early warning method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139749A (en) * | 2017-05-18 | 2017-09-08 | 江苏银基烯碳能源科技有限公司 | Battery management system |
| CN112952228A (en) * | 2021-05-13 | 2021-06-11 | 国网江苏综合能源服务有限公司 | Battery online early warning device and method for new energy rail locomotive |
| CN114300769A (en) * | 2022-01-04 | 2022-04-08 | 深圳芯闻科技有限公司 | New energy automobile battery monitoring system with intelligent smell chip function |
| CN116599475A (en) * | 2023-07-17 | 2023-08-15 | 铱芯科技(深圳)有限公司 | Partition overheat protection method, device and system for automobile power amplifier |
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