CN109193076A - It is a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter - Google Patents
It is a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter Download PDFInfo
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- CN109193076A CN109193076A CN201811292284.0A CN201811292284A CN109193076A CN 109193076 A CN109193076 A CN 109193076A CN 201811292284 A CN201811292284 A CN 201811292284A CN 109193076 A CN109193076 A CN 109193076A
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- 238000001816 cooling Methods 0.000 title claims abstract description 56
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 56
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 50
- 229910052802 copper Inorganic materials 0.000 claims description 50
- 239000010949 copper Substances 0.000 claims description 50
- 239000000919 ceramic Substances 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000007600 charging Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000011883 electrode binding agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
-
- 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
- H01M10/635—Control systems based on ambient 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The present invention is a kind of, and what is involved is one kind for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter that 18650 type lithium ion batteries, the temperature anomaly in storage, transport and charge and discharge process increases early warning and water circulation cooling device, carries out early warning and cooling to battery in battery storage, transport and charge and discharge mid-winter.Structure includes battery pack temperature monitoring and warning part, circulating water battery section and recirculated water water temperature detection and cooling segment.In the charge and discharge, storage, transportational process of lithium ion battery, safer charge and discharge electrical environment is provided for the charge and discharge process of lithium ion battery, timely early warning is carried out before battery charging and discharging thermal runaway.
Description
Technical field
What is involved is a kind of right for a kind of hydrologic cycle cooling system for disposing Li-ion batteries piles mid-winter of the present invention
18650 type lithium ion batteries temperature anomaly in storage, transport and charge and discharge process increases early warning and water circulating cooling dress
It sets, early warning and cooling is carried out to battery in battery storage, transport and charge and discharge mid-winter.
Background technique
21 century, with people to it is safe and environment-friendly the problems such as pay attention to day by day, electrochmical power source has been developed as human lives
In indispensable power source.Especially lithium ion battery, this high capacity secondary chemical sources of electric energy have operating voltage height, follow
The desired advantages of people such as the bad service life is long, self discharge is low, can be quickly charged and discharged, lithium ion battery is worldwide by pole
It is widely applied.
However, internal heat of lithium battery during charge and discharge is easy accumulation, so that temperature increases rapidly, eventually
Cause " thermal runaway " of battery, causes the safety accidents such as leakage, burning even explosion.There are highly exothermic secondary anti-for inside battery
It answers, and heat generation rate has exponent relation increase with the raising of temperature, such as the decomposition of solid electrolyte interface film (SEI film)
Reaction, positive electrode between reaction, negative electrode material and electrolyte and the reaction between electrolyte, the decomposition reaction of electrolyte with
And reacting between negative electrode material and binder.Therefore, it is necessary to handle in lithium ion battery mid-winter battery,
It avoids because causing safety accident after battery mid-winter.
Currently, people have carried out some research and inquirement for the thermal runaway mechanism and its rule of lithium ion battery.Lithium from
Cyclical stability, thermal stability, mechanical stability, the electrochemical stability of sub- battery compare comprehensive security performance and grind
There is also deficiency, lithium ion battery thermal runaways for the research for the problems such as studying carefully, but propagating for lithium battery thermal runaway risk, thermal runaway
When can occur to burn or explode, and release toxic and fuel gas, cause casualties and property loss, in lithium ion battery
Temperature carries out timely early warning and cools just to be particularly important when being higher than normal temperature.
The deficiency and Lessons of comprehensive various technologies, it is aobvious for thermal runaway of the lithium ion battery in charge and discharge process
It obtains particularly important.
Summary of the invention
It is a kind of for disposing Li-ion batteries piles mid-winter the purpose of the present invention is in view of the above shortcomings, providing
Hydrologic cycle cooling system is monitored for thermal parameter of Li-ion batteries piles during charge and discharge, right with cooling water connection grade
The raised battery pack of temperature anomaly is cooled down, while being monitored to cooling circulating water water temperature and being reached in cooling circulating water water temperature
It is cooling that electric cooler is carried out to cooling circulating water in time when to certain temperature, it is ensured that the temperature monitoring of whole device and cooling effect
Fruit avoids battery temperature from further rising and leads to the generation of fire explosion.
The present invention adopts the following technical solutions to achieve:
A kind of hydrologic cycle cooling system for disposing Li-ion batteries piles mid-winter includes battery pack temperature monitoring and warning portion
Point, circulating water battery section and recirculated water water temperature detection and cooling segment；
Battery pack temperature monitoring and warning part includes first singlechip, infrared temperature sensor pin interface, the first electromagnetism relay
Device pin interface, the first power switch, LED alarm lamp, infrared temperature sensor, the first fixed value resistance, the first crystal oscillator, the first pottery
Porcelain capacitor, the first triode and the first power supply；First ceramic condenser through conducting wire both ends respectively with the first crystal oscillator and the first power supply
Switch is connected；First crystal oscillator is connected with first singlechip；First fixed value resistance through conducting wire respectively with first singlechip and infrared
Temperature inductor pin interface is connected；First triode is serially connected between LED alarm lamp and the first fixed value resistance；First power supply point
It is not connected with first singlechip and the first power switch；The output end and infrared temperature sensor pin of infrared temperature sensor
Interface is connected；First electromagnetic relay is connected with the first electromagnetic relay pin interface by signal wire；Infrared temperature sensor
It is connected by signal wire with first singlechip with infrared temperature sensor pin interface；The output end of infrared temperature sensor with it is red
Outer temperature inductor pin interface is connected；First electromagnetic relay is connected by signal wire with first singlechip；
Circulating water battery section is made of the first electromagnetic relay, pump, copper pipe and liquid circulation water；First electromagnetism relay
Device is connected by signal wire with pump；The copper pipe is using circulation copper pipe；Pump setting is between circulation copper pipe；
Recirculated water water temperature detection and cooling segment include second singlechip, the second electromagnetic relay pin interface, K-type thermocouple well
Foot interface, K-type thermocouple, the second electromagnetic relay, cooler, the second fixed value resistance, the second crystal oscillator, the second ceramic condenser,
Two triodes, second source switch and second source；The second crystal oscillator and second singlechip phase are passed through in one end of second ceramic condenser
Even, the other end of the second ceramic condenser is connected with second source switch；Second fixed value resistance via line is connected on second singlechip
And second between electromagnetic relay pin interface；Second source is connected with second singlechip and second source switch respectively；K-type
Thermocouple is connected with K-type thermocouple pin interface by signal wire；K-type thermocouple pin interface passes through signal wire and the second monolithic
Machine is connected.
First ceramic condenser and the second ceramic condenser are for shielding, filtering clutter.
The LED alarm lamp uses red LED alarm lamp, can also use other colors, preferred red more eye-catching.
First triode amplifies electric current, makes when the early warning of lithium ion battery thermal runaway and cooling treatment device work
LED alarm lamp can work normally；In lithium ion battery mid-winter early warning, it is used as noncontacting switch.
K-type thermocouple is placed between arc copper pipe and cooler, is tightly attached in copper pipe surface, comes from copper pipe for measuring
Temperature signal is reached second singlechip by the temperature of tube wall.
The specification of copper pipe is the circular copper pipe of diameter 5.0mm, thickness 0.5mm, the copper pipe by bend in the form of semi-ring around
Cooling effect is improved in battery pack outer wall side to increase contact surface area.
The infrared temperature sensor uses commercially available infrared temperature sensor.
The algnment accuracy that the infrared temperature sensor provides within the scope of room temperature is ± 0.5 DEG C, infrared temperature sensor
Calculated temperature be all objects in infrared temperature sensor angular field of view mean temperature, infrared temperature sensor face
Tested battery cathode, distance are 0.5cm~1.0cm.
Working principle:
When a kind of hydrologic cycle cooling system work for disposing Li-ion batteries piles mid-winter, connect by infrared temperature sensor
The temperature signal from tested battery pack is received, and the signal is reached into electricity by infrared temperature sensor pin interface and route
The first singlechip of pond set temperature monitoring early warning part carries out temperature judgement by first singlechip, and first singlechip is according to setting
Temperature threshold, drive LED alarm lamp and the first electromagnetic relay Operating In Persistent Current Mode, the first electromagnetic relay is closed transfer tube work
Work makes recirculated water circulating cooling battery pack；The recirculated water water temperature in tested copper pipe is received by K-type thermocouple simultaneously, and by signal
The second singlechip in recirculated water water temperature detection and cooling segment is reached by K-type thermocouple pin interface and signal wire, by
Two single-chip microcontrollers carry out temperature judgement, and second singlechip drives the second electromagnetic relay Operating In Persistent Current Mode according to the temperature threshold of setting,
Second electromagnetic relay drives recirculated water in cooler operating cooling copper tube；External infrared of infrared temperature sensor pin interface
The algnment accuracy that temperature inductor provides within the scope of room temperature is ± 0.5 DEG C, and the temperature that infrared temperature sensor is detected is
The mean temperature of all objects in infrared temperature sensor angular field of view, infrared temperature sensor face measurand battery pack are negative
Pole, distance are 0.5cm~1.0cm, and K-type thermocouple is placed between arc copper pipe and cooler, and is tightly attached to the surface of copper pipe.
For disposing the method for disposal of the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, include the following steps:
1) by infrared temperature sensor face negative electrode of lithium ion battery；
2) after infrared temperature sensor senses ambient temperature, temperature signal is transmitted to first singlechip, and in interior contrast
Temperature sends instructions to LED alarm lamp and the first electromagnetic relay by first singlechip；
2-1) when external infrared temperature sensor feedback temperature is greater than 50 DEG C, monitored battery pack reaches early warning cooling condition,
First singlechip sends instructions to LED alarm lamp, and LED alarm lamp lights, and issues the light persistently flashed, and prompting personnel pay attention to battery
Group state of temperature；First singlechip sends instructions to the first electromagnetic relay, controls pump by the first electromagnetic relay and starts work
Make, moves up circulating water flow, battery pack is cooled down；
2-2) when the feedback temperature of infrared temperature sensor is down to 50 DEG C or less, first singlechip stop to LED alarm lamp and
First electromagnetic relay issues alarm command, and LED alarm lamp stops working or do not work at this time, and the first electromagnetic relay disconnects electricity
Stream stops working or does not work so that pumping, and judges that first singlechip again the temperature of battery pack；
3) temperature signal is transmitted to second singlechip, is fitted recirculated water water in copper pipe by K-type thermocouple by induction copper pipe temperature
Temperature simultaneously carries out temperature comparisons inside second singlechip, the second electromagnetic relay is sent instructions to by second singlechip, to control
The operating of cooler；
3-1) when K-type thermocouple feedback cycle coolant-temperature gage is greater than 50 DEG C, monitored recirculated water reaches cooling condition, the second monolithic
Machine sends instructions to the second electromagnetic relay, and the second electromagnetic relay closure, which generates loop current, makes cooler start to work, right
Recirculated water is cooled down in copper pipe；
3-2) when K-type thermocouple feedback cycle coolant-temperature gage is down to 50 DEG C or less, second singlechip stops to the second electromagnetism relay
Device sends instruction, and the second electromagnetic relay turn-off current makes cooler stop working or not work at this time, then makes the second list
Piece machine carries out new round judgement to circulating water temperature.
In step 1), the distance between infrared temperature sensor and negative electrode of lithium ion battery are 0.5cm~1.0cm, are reduced
Or the deviation of monitoring battery temperature is avoided, reach optimal monitoring effect；
In step 3), copper pipe specification is the circular copper pipe of diameter 5.0mm, thickness 0.5mm, and copper pipe is partly looped around battery pack outer wall side,
To increase contact surface area, cooling effect is improved.
The present invention, which is used as, is directed to Li-ion batteries piles mid-winter earlier cycles water cooling and prior-warning device, has operation letter
The advantages that list, real-time monitoring, early warning are in time, disposition is effective.It can be waited in the group charge and discharge storage and transport of lithium ion battery
Cheng Zhong provides safer external environment for the charge and discharge process of Li-ion batteries piles.For Li-ion batteries piles charge and discharge,
Electricity storage, transport etc. during, by temperature determining program battery pack temperature be higher than normal temperature when carry out timely early warning and
Cooling treatment, to prevent temperature of lithium ion battery group from further developing and expand；For Li-ion batteries piles charge and discharge,
Excessively high the progresss early warning of temperature and cooling treatment in storage and transportational process, greatly ensure that the safety of lithium ion battery with
Reliability, reduce Li-ion batteries piles thermal runaway and combustion explosion accident institute to personnel generation injury.Detailed description of the invention
Fig. 1 is the structure principle chart of present system；
Fig. 2 is copper pipe partial enlarged view in Fig. 1；
Fig. 3 is the work flow diagram of present system first singlechip；
Fig. 4 is the work flow diagram of present system second singlechip.
In figure: 1-1, first singlechip, 1-2, the first crystal oscillator, 1-3, LED alarm lamp, 1-4, the first power switch, 1-5,
First triode, 1-6, the first fixed value resistance, 1-7, the first ceramic condenser, 1-8, the first electromagnetic relay, 1-9, the first electromagnetism
Relay pin interface；2-1, second singlechip, 2-2, the second crystal oscillator, 2-4, second source switch, 2-5, the second triode, 2-
6, the second fixed value resistance, 2-7, the second ceramic condenser, 2-8, the second electromagnetic relay, 2-9, the second electromagnetic relay pin connect
Mouthful；3, K-type thermocouple, 3-1, K-type thermocouple pin interface；4, infrared temperature sensor；4-1, infrared temperature sensor pin
Interface；5, it pumps；6, cooler；7, copper pipe；A, copper pipe is bent corresponding central angle.
Specific embodiment
Referring to attached drawing 1, the present invention includes battery for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter
Set temperature monitoring early warning part, circulating water battery section and recirculated water water temperature detection and cooling segment；
Battery pack temperature monitoring and warning part includes first singlechip 1-1, infrared temperature sensor pin interface 4-1, the first electricity
Magnetic relay pin interface 1-9, the first power switch 1-4, LED alarm lamp 1-3, infrared temperature sensor 4, the first fixed value resistance
1-6, the first crystal oscillator 1-2, the first ceramic condenser 1-7, the first triode 1-5 and the first power supply；First ceramic condenser 1-7 is through conducting wire
Both ends are connected with the first crystal oscillator 1-2 and the first power switch 1-4 respectively；First crystal oscillator 1-2 is connected with first singlechip 1-1；
First fixed value resistance 1-6 is connected with first singlechip 1-1 and infrared temperature sensor pin interface 4-1 respectively through conducting wire；The
One triode 1-5 is serially connected between LED alarm lamp 1-3 and the first fixed value resistance 1-6；First power supply respectively with first singlechip 1-
1 and first power switch 1-4 be connected；The output end of infrared temperature sensor 4 and infrared temperature sensor pin interface 4-1 phase
Even；First electromagnetic relay 1-8 is connected with the first electromagnetic relay pin interface 1-9 by signal wire；Infrared temperature sensor 4
It is connected by signal wire with first singlechip 1-1 with infrared temperature sensor pin interface 4-1；Infrared temperature sensor 4 it is defeated
Outlet is connected with infrared temperature sensor pin interface 4-1；First electromagnetic relay 1-8 passes through signal wire and first singlechip 1-
1 is connected；
Circulating water battery section is made of the first electromagnetic relay 1-8, pump, copper pipe 7 and liquid circulation water；First electromagnetism
Relay 1-8 is connected by signal wire with pump；The copper pipe 7 is using circulation copper pipe；Pump setting is between circulation copper pipe；
Recirculated water water temperature detection and cooling segment include second singlechip 2-1, the second electromagnetic relay pin interface 2-9, K-type heat
Galvanic couple pin interface 3-1, K-type thermocouple 3, the second electromagnetic relay 2-8, cooler 6, the second fixed value resistance 2-6, the second crystal oscillator
2-2, the second ceramic condenser 2-7, the second triode 2-5, second source switch 2-4 and second source；Second ceramic condenser 2-7's
One end is connected by the second crystal oscillator 2-2 with second singlechip 2-1, and the other end and second source of the second ceramic condenser 2-7 switchs
2-4 is connected；Second fixed value resistance 2-6 via line be connected on second singlechip 2-1 and the second electromagnetic relay pin interface 2-9 it
Between；Second source is connected with second singlechip 2-1 and second source switch 2-4 respectively；K-type thermocouple 3 and K-type thermocouple well
Foot interface 3-1 is connected by signal wire；K-type thermocouple pin interface 3-1 is connected by signal wire with second singlechip 2-1.
Shown in Fig. 2, copper pipe 7 is wound on battery pack outer wall side in the form of semi-ring to bend to, and to increase contact surface area, improves cold
But effect, in Fig. 2, a indicates that copper pipe is bent corresponding central angle, and in the present embodiment, central angle is 60 °.
Present system is different for battery of the 18650 type lithium ion batteries in storage, transport and battery charge and discharge process
Normal heating initial stage carries out early warning and cools down, mountable in places such as the chargings, electric discharge, storage of lithium ion battery, is different places
Under lithium ion battery provide temperature parameter.It is more than that battery normally makes in lithium ion battery by analyzing temperature parameter
When with temperature, timely early warning, so that personnel effectively take measures, so that lithium ion battery thermal runaway bring be avoided to injure.
With reference to the accompanying drawing 3 ~ 4 and specific embodiment, the present invention is further illustrated.
Embodiment 1:
In use, by infrared temperature sensor and 18650 type negative electrode of lithium ion battery faces, away from cathode 0.5cm~1.0cm, one
The corresponding battery of a infrared temperature sensor；K-type thermocouple and the copper pipe of recirculated cooling water module are in close contact.
It is now assumed that certain 18650 type lithium ion battery carries out exoelectrical reaction in infrared temperature sensor monitoring range, when it
Occur temperature anomaly, method for early warning the following steps are included:
1) after infrared temperature sensor senses ambient temperature, temperature signal is transmitted to first singlechip；
2) temperature signal and the early warning temperature in inner setting are compared by first singlechip, rear first singlechip is sent
Instruct early warning part；
If 2-1) temperature is greater than 50 DEG C, red LED alarm lamp is continued working, and issues the feux rouges of flashing, and prompting personnel pay attention to being supervised
Battery status is surveyed, and the first electromagnetic relay acts, the movement of the first electromagnetic relay drives the movement of the first power switch, and connection follows
The power supply of ring cooling water module, pump working absorb the heat of battery；
If 2-2) infrared temperature sensor sense temperature no more than 50 DEG C, then red LED alarm lamp and the first electromagnetism after
Electric appliance does not work or stops.
3) after K-type thermocouple induction to copper pipe temperature, the real-time temperature signal of copper pipe is transmitted to second singlechip.
4) the early warning temperature value of the temperature signal and inner setting is compared by second singlechip, second singlechip is logical
It crosses the second electromagnetic relay pin interface and sends instructions to the second electromagnetic relay；
If 4-1) temperature is greater than 50 DEG C, the second electromagnetic relay movement, the second electromagnetic relay movement drives second source switch
The power supply of circulating water cooling module is connected in movement, and electric cooling fin is started to work, the heat of absorption cycle water.
If 4-2) K-type thermocouple induction is not more than 50 DEG C to temperature, then the second electromagnetic relay does not work or stops.
In embodiments of the present invention, infrared temperature sensor selects the original-pack MLX90614ESF-BCC number of MELEXIS non-
Infrared temperature probe is contacted, single-chip microcontroller uses MCS-51 type single-chip microcontroller, and red LED alarm lamp uses commercially available LED light, K-type
Thermocouple uses the model of TJ36-CAXL-116U-2, and electromagnetic relay uses commercially available miniature electro-magnetic relay.
Embodiment 2:
The present embodiment infrared temperature sensor position is with embodiment 1, if infrared temperature sensor position is not away from monitored 18650
At type negative electrode of lithium ion battery 0.5cm~1.0cm, then infrared temperature sensor monitoring battery temperature has deviation, leads to early warning
It is ineffective.
If infrared temperature sensor position is in the 18650 type negative electrode of lithium ion battery to work away from monitored discharge circuit
At 0.5cm~1.0cm, the temperature detected by the external infrared temperature sensor of infrared temperature sensor pin interface, by temperature
Signal via line is transmitted to first singlechip and carries out program judgement operation, if temperature can issue and refer to more than set 50 DEG C
It enables, the first electromagnetic relay movement, pump is opened, and cooling circulating water starts the cycle over, cools down to battery.Red LED lamp simultaneously
Lasting flashing.
To, when temperature is reduced to 50 DEG C or less, the first electromagnetic relay does not work or stops, control after battery cooling
The pump of system does not also work or stops, and red LED lamp does not work or stops.
K-type thermocouple location leads to embodiment 1, if K-type thermocouple location not at the position described in embodiment 1, K-type thermoelectricity
Even temperature collection may lag, and can have some impact on to cooling effect.
If K-type thermocouple location is as described in Example 1, by the external K-type thermocouple monitoring of K-type thermocouple pin interface to
Temperature signal via line is transmitted to second singlechip and carries out program judgement operation by temperature, if temperature is higher than 50 DEG C of setting,
Instruction, the movement of the second electromagnetic relay can be issued, point cooler is opened and worked, cools down to copper pipe.
After copper pipe cooling, when temperature is reduced to 50 DEG C or less, the second electromagnetic relay does not work or stops,
The electric cooler controlled does not work or stops.
Claims (10)
1. a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, it is characterised in that: including battery pack
Temperature monitoring early warning part, circulating water battery section and recirculated water water temperature detection and cooling segment；
Battery pack temperature monitoring and warning part includes first singlechip, infrared temperature sensor pin interface, the first electromagnetism relay
Device pin interface, the first power switch, LED alarm lamp, infrared temperature sensor, the first fixed value resistance, the first crystal oscillator, the first pottery
Porcelain capacitor, the first triode and the first power supply；First ceramic condenser through conducting wire both ends respectively with the first crystal oscillator and the first power supply
Switch is connected；First crystal oscillator is connected with first singlechip；First fixed value resistance through conducting wire respectively with first singlechip and infrared
Temperature inductor pin interface is connected；First triode is serially connected between LED alarm lamp and the first fixed value resistance；First power supply point
It is not connected with first singlechip and the first power switch；The output end and infrared temperature sensor pin of infrared temperature sensor
Interface is connected；First electromagnetic relay is connected with the first electromagnetic relay pin interface by signal wire；Infrared temperature sensor
It is connected by signal wire with first singlechip with infrared temperature sensor pin interface；The output end of infrared temperature sensor with it is red
Outer temperature inductor pin interface is connected；First electromagnetic relay is connected by signal wire with first singlechip；
Circulating water battery section is made of the first electromagnetic relay, pump, copper pipe and liquid circulation water；First electromagnetism relay
Device is connected by signal wire with pump；The copper pipe is using circulation copper pipe；Pump setting is between circulation copper pipe；
Recirculated water water temperature detection and cooling segment include second singlechip, the second electromagnetic relay pin interface, K-type thermocouple well
Foot interface, K-type thermocouple, the second electromagnetic relay, cooler, the second fixed value resistance, the second crystal oscillator, the second ceramic condenser,
Two triodes, second source switch and second source；The second crystal oscillator and second singlechip phase are passed through in one end of second ceramic condenser
Even, the other end of the second ceramic condenser is connected with second source switch；Second fixed value resistance via line is connected on second singlechip
And second between electromagnetic relay pin interface；Second source is connected with second singlechip and second source switch respectively；K-type
Thermocouple is connected with K-type thermocouple pin interface by signal wire；K-type thermocouple pin interface passes through signal wire and the second monolithic
Machine is connected.
2. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: the LED alarm lamp uses red LED alarm lamp.
3. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: the ceramic condenser is for shielding, filtering clutter.
4. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: first triode amplifies electric current, makes the normal work of LED alarm lamp in lithium ion battery mid-winter early warning
Make；First triode is used as noncontacting switch in lithium ion battery mid-winter early warning.
5. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: the K-type thermocouple is placed between copper pipe and cooler, is tightly attached in copper pipe surface, comes from copper pipe pipe for measuring
Temperature signal is reached second singlechip by the temperature of wall.
6. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: the specification of the copper pipe is the circular copper pipe of diameter 5.0mm, thickness 0.5mm, the copper pipe by bend in the form of semi-ring around
Cooling effect is improved in battery pack outer wall side to increase contact surface area.
7. according to claim 1 for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter, feature
Be: the infrared temperature sensor face is tested battery cathode, and distance is 0.5cm~1.0cm.
8. it is described in claim 1 for disposing the method for disposal of the hydrologic cycle cooling system of Li-ion batteries piles mid-winter,
It is characterized by comprising the following steps:
1) by infrared temperature sensor face negative electrode of lithium ion battery；
2) after infrared temperature sensor senses ambient temperature, temperature signal is transmitted to first singlechip, and in interior contrast
Temperature sends instructions to LED alarm lamp and the first electromagnetic relay by first singlechip；
2-1) when external infrared temperature sensor feedback temperature is greater than 50 DEG C, monitored battery pack reaches early warning cooling condition,
First singlechip sends instructions to LED alarm lamp, and LED alarm lamp lights, and issues the light persistently flashed, and prompting personnel pay attention to battery
Group state of temperature；First singlechip sends instructions to the first electromagnetic relay, controls pump by the first electromagnetic relay and starts work
Make, moves up circulating water flow, battery pack is cooled down；
2-2) when the feedback temperature of infrared temperature sensor is down to 50 DEG C or less, first singlechip stop to LED alarm lamp and
First electromagnetic relay issues alarm command, and LED alarm lamp stops working or do not work at this time, and the first electromagnetic relay disconnects electricity
Stream stops working or does not work so that pumping, and judges that first singlechip again the temperature of battery pack；
3) temperature signal is transmitted to second singlechip, is fitted recirculated water water in copper pipe by K-type thermocouple by induction copper pipe temperature
Temperature simultaneously carries out temperature comparisons inside second singlechip, the second electromagnetic relay is sent instructions to by second singlechip, to control
The operating of cooler；
3-1) when K-type thermocouple feedback cycle coolant-temperature gage is greater than 50 DEG C, monitored recirculated water reaches cooling condition, the second monolithic
Machine sends instructions to the second electromagnetic relay, and the second electromagnetic relay closure, which generates loop current, makes cooler start to work, right
Recirculated water is cooled down in copper pipe；
3-2) when K-type thermocouple feedback cycle coolant-temperature gage is down to 50 DEG C or less, second singlechip stops to the second electromagnetism relay
Device sends instruction, and the second electromagnetic relay turn-off current makes cooler stop working or not work at this time, then makes the second list
Piece machine carries out new round judgement to circulating water temperature.
9. according to claim 8 for disposing the disposition side of the hydrologic cycle cooling system of Li-ion batteries piles mid-winter
Method, which is characterized in that in step 1), the distance between infrared temperature sensor and negative electrode of lithium ion battery be 0.5cm~
1.0cm is reduced or avoided the deviation of monitoring battery temperature, reaches optimal monitoring effect.
10. according to claim 8 for disposing the disposition of the hydrologic cycle cooling system of Li-ion batteries piles mid-winter
Method, which is characterized in that in step 3), copper pipe specification is the circular copper pipe of diameter 5.0mm, thickness 0.5mm, and copper pipe is partly looped around
Battery pack outer wall side improves cooling effect to increase contact surface area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292284.0A CN109193076A (en) | 2018-11-01 | 2018-11-01 | It is a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292284.0A CN109193076A (en) | 2018-11-01 | 2018-11-01 | It is a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter |
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| CN109193076A true CN109193076A (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292284.0A Pending CN109193076A (en) | 2018-11-01 | 2018-11-01 | It is a kind of for disposing the hydrologic cycle cooling system of Li-ion batteries piles mid-winter |
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| CN202839900U (en) * | 2012-09-12 | 2013-03-27 | 北京普莱德新能源电池科技有限公司 | Circulating water cooling system for electric vehicle battery pack |
| CN204558621U (en) * | 2015-05-08 | 2015-08-12 | 桂林电子科技大学 | A kind of water cooled electrodynamic automobile power cell heat abstractor |
| CN206194923U (en) * | 2016-12-03 | 2017-05-24 | 深圳名飞远科技有限公司 | Heat management device for power batteries |
| CN207781836U (en) * | 2017-11-16 | 2018-08-28 | 南京工业大学 | The thermal runaway early warning device of lithium ion battery in charge and discharge process |
| CN209016229U (en) * | 2018-11-01 | 2019-06-21 | 南京工业大学 | The early warning of Li-ion batteries piles mid-winter and water circulation cooling device |
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2018
- 2018-11-01 CN CN201811292284.0A patent/CN109193076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839900U (en) * | 2012-09-12 | 2013-03-27 | 北京普莱德新能源电池科技有限公司 | Circulating water cooling system for electric vehicle battery pack |
| CN204558621U (en) * | 2015-05-08 | 2015-08-12 | 桂林电子科技大学 | A kind of water cooled electrodynamic automobile power cell heat abstractor |
| CN206194923U (en) * | 2016-12-03 | 2017-05-24 | 深圳名飞远科技有限公司 | Heat management device for power batteries |
| CN207781836U (en) * | 2017-11-16 | 2018-08-28 | 南京工业大学 | The thermal runaway early warning device of lithium ion battery in charge and discharge process |
| CN209016229U (en) * | 2018-11-01 | 2019-06-21 | 南京工业大学 | The early warning of Li-ion batteries piles mid-winter and water circulation cooling device |
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Inventor after: Zhou Yuxin Inventor after: Liu Kai Inventor after: Jing Mingju Inventor after: Wang Zhirong Inventor after: Yang Bin Inventor after: Chen Xiangyu Inventor before: Yang Bin Inventor before: Liu Kai Inventor before: Wang Zhirong Inventor before: Zhou Yuxin Inventor before: Chen Xiangyu Inventor before: Jing Mingju |
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Application publication date: 20190111 |
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