CN110416456A - The anti-spontaneous combustion system of new energy car battery - Google Patents
The anti-spontaneous combustion system of new energy car battery Download PDFInfo
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- CN110416456A CN110416456A CN201910635920.3A CN201910635920A CN110416456A CN 110416456 A CN110416456 A CN 110416456A CN 201910635920 A CN201910635920 A CN 201910635920A CN 110416456 A CN110416456 A CN 110416456A
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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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
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- H01M10/42—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
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses the anti-spontaneous combustion systems of new energy car battery, battery case is arranged on chassis, battery is stated by two pieces of bottom plate closings in the bottom of battery case, battery is provided on two pieces of bottom plates, retaining mechanism is equipped between two pieces of bottom plates, chassis is connected with refrigerant cooling mechanism, battery case is connected with wind-cooling heat dissipating mechanism, refrigerant cooling mechanism and wind-cooling heat dissipating mechanism radiate to battery case simultaneously, all battery cases are also connected with same extraction sector, extraction sector takes out negative pressure to battery case, as battery the temperature inside the box > T1When retaining mechanism unlock, two pieces of bottom plates open battery and are detached from corresponding battery case, the refrigerant cooling mechanism, extraction sector are connected with control circuit, and the control circuit is provided with main microprocessor, and main microprocessor is connected with baroceptor, temperature sensor and combined aural and visual alarm；The present invention carries out double-radiation function, good heat dissipation effect to battery case simultaneously by refrigerant cooling mechanism and wind-cooling heat dissipating mechanism.
Description
Technical field
The present invention relates to batteries of electric automobile technical fields, and in particular to the anti-spontaneous combustion system of new energy car battery.
Background technique
In recent years as automotive engineering is changed, while in response to the energy saving call with protection environment of country, new energy
Source automobile comes into being, and has pushed new-energy automobile technology fast-developing.Wherein electric car be using vehicle power supply as power,
It for gasoline automobile, has fewer environmental impacts, non-renewable gasoline resource can be substituted, development prospect is extensive
It is good.
But currently, many technologies of electric car are not still overripened, especially battery is at work due to battery, right
Temperature there are certain requirements, if temperature is excessively high, not only influence battery performance, and be easy to cause nature, explosion the problems such as appearance,
There are severe compromises, and automobile safety accident caused by excessive cause battery spontaneous combustion also occurs in recent years, has seriously affected people
To the degree of recognition of electric car.
Summary of the invention
In view of this, the present invention provides the anti-spontaneous combustion systems of new energy car battery.
Its technical solution is as follows: the anti-spontaneous combustion system of new energy car battery, including chassis, key are: the chassis
On offer N number of battery case bayonet, N number of battery case bayonet is distributed in array-like, is arranged with electricity in the battery case bayonet
The bottom of pond case, the battery case is closed by two pieces of bottom plates, is placed with battery on two pieces of bottom plates；
The chassis is connected with refrigerant cooling mechanism, and the battery case is connected with wind-cooling heat dissipating mechanism, the refrigerant heat dissipation
Mechanism and wind-cooling heat dissipating mechanism give the battery case to radiate simultaneously, and all battery cases are also connected with the same extraction sector,
The extraction sector aspirates the air in each battery case pumping；
Two pieces of bottom plates are hinged with the inner wall of the battery case respectively, and retaining mechanism is equipped between two pieces of bottom plates, works as battery case
Interior temperature > T1The unlock of Shi Suoshu retaining mechanism, two pieces of bottom plates are opened, and the battery is detached from the corresponding battery case；
The refrigerant cooling mechanism, extraction sector are connected with control circuit, and the control circuit is provided with main microprocessor,
Main microprocessor is connected with baroceptor, temperature sensor and combined aural and visual alarm, baroceptor and temperature sensor peace
Loaded in battery case；
Main microprocessor controls the switch of extraction sector according to the signal of baroceptor, and main microprocessor is passed by temperature
Sensor obtains battery the temperature inside the box, when battery the temperature inside the box is greater than the temperature threshold T of setting3When, main microprocessor controls acousto-optic
Alarm issues alarm signal, temperature threshold T3< T1。
Wherein T1For the maximum temperature limit value of battery case.
By adopting the above technical scheme, daily traveling on the way, refrigerant cooling mechanism and wind-cooling heat dissipating mechanism are simultaneously to battery
Case carries out double-radiation function, and good heat dissipation effect, the temperature for effectively preventing battery case is excessively high, influences the normal function of battery, and one
Denier battery is abnormal when releasing flammable explosive gas, sulfur dioxide, hydrogen that extraction sector can timely release battery
The discharge of the flammable explosive gas such as gas, oxygen, prevents these gases to be enriched with excessive concentrations in battery case and set off an explosion, and when electricity
Pond constant temperature is increased to maximum temperature limit value T1When possible spontaneous combustion, the battery can be detached from automobile by unlocking mechanism, this
Invention effectively improves the security reliability of battery by multiple-protection, ensure that the safety of driver and passenger, automobile itself, prevents
There is serious accident and reduces economic loss.
When main microprocessor detects the interior air pressure of battery case greater than atmospheric pressure by baroceptor, i.e. control is taken out
Gas mechanism opening extracts the flammable explosive gas such as sulfur dioxide, hydrogen, oxygen out.Conversely, when being less than atmospheric pressure, control pumping
Mechanism closes.
Main microprocessor obtains battery the temperature inside the box by temperature sensor, when battery the temperature inside the box is greater than the temperature of setting
Threshold value T3When, main microprocessor controls combined aural and visual alarm and issues alarm signal, reminds user that automobile is reached place of safety jettisoning
Battery.
As further preferred:
Above-mentioned refrigerant cooling mechanism includes the compressor being sequentially connected in series, condenser, expansion valve and heat-exchange tube, wherein described
Heat-exchange tube is S-shaped to be coiled in the chassis, and condensing agent is full of in the heat-exchange tube, temperature is equipped in the battery case and passes
Sensor, as the temperature > T in the battery case2When, the refrigerant cooling mechanism starting cooling, wherein 40 DEG C of < T2< T1.Using
This structure, the optimum working temperature of battery are 15-25 DEG C, general control within 30 DEG C, more than 40 DEG C after battery service life and
Efficiency can decline, and when the temperature of battery is more than 40 DEG C, starting refrigerant cooling mechanism in time radiates to battery, can effectively mention
The service life and efficiency of battery are risen, while can also prevent that battery temperature is excessively high and leads to potential risks.
Above-mentioned wind-cooling heat dissipating mechanism includes heat dissipation wind channel, air collecting chamber and air-exhausting duct, is provided in the tank wall of the battery case perpendicular
The heat dissipation wind channel is formed to through-hole, for the air inlet of the heat dissipation wind channel towards chassis lower section, the chassis top passes through support
Frame is equipped with cover board, is equipped with the air collecting chamber in the cover board, the gas outlets of all vertical through holes by guide duct with it is described
Air collecting chamber connection, the air collecting chamber are connected with air-exhausting duct.Using this structure, the gas of bottom of car can be entered by heat dissipation wind channel
Battery case tank wall, and then be discharged through air-exhausting duct, effective cooling and heat dissipation can be played to battery case, this radiator structure makes full use of
Aerodynamics, realize air-flow automatically into and discharge, not only energy conservation and environmental protection, and even hinder in battery circuit
Effective cooling and heat dissipation can still be played the role of in the case where hindering.
It is separately installed with the air-exhausting duct in the A column of automobile, B column and C column, the gas outlet of the air-exhausting duct is located at automobile
Roof.Using this structure, when galloping, the high-speed flow at vehicle bottom is guided roof discharge, is reducing bottom of car
Air pressure while, moreover it is possible to certain suppressing action is played to automobile, achieve the purpose that reduce air lift, improve grabbing for automobile
Soil fertility keeps automobile more stable in the case where running at high speed.
Above-mentioned extraction sector includes the negative pressure runner and negative pressure cavity being arranged in the cover board, the top surface of the battery case with
The lower surface of the cover board fits closely, and each row is corresponded in the cover board or each column battery case is described negative equipped with one
Runner is pressed, the inner cavity of the battery case is connected to the corresponding negative pressure runner, and the negative pressure runner is connected to the negative pressure cavity,
The negative pressure cavity is connected with vacuum pump.Using this structure, vacuum pump can in time be extracted the inflammable and explosive automobile in battery case out, be made
Certain vacuum degree is inwardly kept, battery explosion is prevented.
The case top of above-mentioned battery case is equipped with bleeding point, is equipped with the plug that shape therewith matches in the bleeding point, described
Correspond to the bleeding point on cover board and offer pumping slot, the notch of the pumping slot is opposite with the bleeding point, the pumping slot with
The corresponding negative pressure runner is connected to, and is equipped with plug spring in the pumping slot, which pushes to take out by the plug
Port is provided with mandril on the battery, which overcomes plug spring force, and the plug is jacked up to make the battery
The inner cavity of case is connected to the negative pressure runner.Using this structure, when reach capacity situation after battery be detached from battery case after, plug exists
It is automatically fallen off under the action of plug spring and blocks bleeding point, so that entire negative pressure runner be made to be still in sealing state, not shadow
Ring the pumping negative pressure of other battery cases.
The battery case is corresponded on above-mentioned cover board and is equipped with docking end cap, and the docking end cap is protruded on the top of the battery case
It is interior, sealing ring is equipped between the inner wall of the docking end cap and the outer wall of the battery case.Using this structure, battery case and cover board
The better tightness of junction.
Above-mentioned retaining mechanism includes locking latch, locking spring and memorial alloy item, is equipped in one of bottom plate
Latch groove, is equipped with sequentially connected memorial alloy item, locking spring and locking latch in the latch groove, in another described bottom plate
Equipped with locking hole, the memorial alloy item is pushed against the slot bottom of the latch groove by the locking spring inner end, outside locking spring
The locking latch is held out against in the locking hole bottom hole change of the memorial alloy item to lock two pieces of bottom plates by end
State temperature is T1, as battery the temperature inside the box > T1When, the memorial alloy item restores to spiral helicine stable state, the locking bullet
The slot bottom that spring drives locking latch towards latch groove is mobile, and the locking latch exits two pieces of bottom plates of the locking hole and solved
Lock.Using this structure, when battery temperature increases the transformation temperature for reaching memorial alloy item suddenly, memorial alloy item is deformed rapidly
Original state is returned to, so that locking latch be made to deviate from locking hole, bottom plate is opened, and battery falls off, and automobile can continue to slide one section
It stops after time, effectively prevents a possibility that battery burns in battery case.
The interface of upper two pieces of bottom plates is step-like in mutually matched three-level, and the three-level step of two pieces of bottom plates is public
Mother's cooperation, wherein on the terrace and table top of first order step, on the table top of second level step and on the terrace of third level step
It is respectively equipped with the first sealing strip, the terrace of second level step takes the form of inclined plane, and the latch groove is located on the terrace of second level step.
Using this structure, sealing is close at the docking of two bottom plates, can effective means battery case gas leakage, influence to take out vacuum effect.
Force sensor is installed around the battery in above-mentioned battery case, the force snesor is contacted with the battery, power
Sensor and battery chamber interior wall are connected, and probe is also equipped with baroceptor in the battery case towards battery.Using this knot
Structure, can detect battery by force snesor is bulging enough occur, can detect the air pressure in battery case by baroceptor.
Compared with prior art, beneficial effects of the present invention: refrigerant cooling mechanism and wind-cooling heat dissipating mechanism are simultaneously to battery
Case carries out double-radiation function, and good heat dissipation effect, the heat build-up for effectively preventing battery case is excessively high, once and battery is abnormal and releases
When releasing flammable explosive gas, sulfur dioxide, hydrogen, oxygen that extraction sector can timely release battery etc. are inflammable and explosive
Gas discharge, prevents these gases to be enriched with excessive concentrations in battery case and set off an explosion, and when battery temperature is persistently increased to
When possible spontaneous combustion, the battery can be detached from automobile by unlocking mechanism, automobile can stop afterwards for a period of time by coast,
Carry out the processing such as alarm again, the present invention effectively improves the security reliability of battery by multiple-protection, ensure that driver and passenger,
The safety of automobile itself prevents serious accident and reduces economic loss.
Detailed description of the invention
Fig. 1 is outline structural diagram of the invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is the enlarged drawing in the portion a in Fig. 2；
Fig. 4 is the planar structure schematic diagram on chassis；
Fig. 5 is the planar structure schematic diagram of cover board；
Fig. 6 is the structural schematic diagram that the present invention is mounted on automobile.
Fig. 7 is circuit diagram of the invention；
Fig. 8 is the circuit diagram of main microprocessor；
Fig. 9 is the circuit diagram from microprocessor；
Figure 10 is another implementation example figure of retaining mechanism.
Specific embodiment
The invention will be further described with attached drawing with reference to embodiments.
As Figure 1-10 shows, the anti-spontaneous combustion system of new energy car battery, including chassis 1 offer on the chassis 1 N number of
Battery case bayonet, N number of battery case bayonet rectangular array shape are distributed, and are arranged with battery case 2, institute in the battery case bayonet
It states and is placed with battery 3 in battery case 2, the chassis 1 is connected with refrigerant cooling mechanism 4, and the battery case 2 is connected with wind-cooling heat dissipating
Mechanism 5, the refrigerant cooling mechanism 4 and wind-cooling heat dissipating mechanism 5 radiate to the battery case 2 simultaneously, and all battery cases 2 are also
It is connected with the same extraction sector 5, which aspirates the air in each battery case 2；
Preferably, the bottom of the battery case 2 is closed by two pieces of bottom plates 8, two pieces of bottom plates 8 respectively with the battery case 2
Inner wall is hinged, and the battery 3 is provided on two pieces of bottom plates 8, retaining mechanism 7 is equipped between two pieces of bottom plates 8, when battery case 2
Interior temperature > T1Shi Suoshu retaining mechanism 7 unlocks, and two pieces of bottom plates 8 are opened, and the battery 3 is detached from the corresponding battery case
2。
Wherein battery 3 is N number of, the power supply system of automobile is formed in the form of multiple series connection and parallel connection, when one of them
When the battery 3 of overtemperature falls off, power supply system remains to output electric current, which remains to push running car, but exports electric current and become
It is small.For example 15 batteries, every 5 batteries 3 series connection are in parallel by three concatenated battery packs after series connection.
The refrigerant cooling mechanism 4, extraction sector 6 are connected with control circuit, and the control circuit is provided with main micro process
Device 100, main microprocessor 100 are connected with baroceptor 10, temperature sensor 402 and combined aural and visual alarm 101, air pressure sensing
Device 10 and temperature sensor 402 are installed in battery case 2；
Main microprocessor 100 controls the switch of extraction sector 6, main microprocessor 100 according to the signal of baroceptor 10
Temperature in battery case 2 is obtained by temperature sensor 402, when temperature is greater than the temperature threshold T of setting in battery case 23When, master is micro-
Processor 100 controls combined aural and visual alarm 101 and issues alarm signal, temperature threshold T3< T1。
Wherein T1For the maximum temperature limit value of battery case.
Temperature sensor 402 uses AD590 temperature sensor, and the lower end of temperature sensor 402 and the upper surface of battery 3 are supported
It connects, the upper end of temperature sensor 402 is threaded through in sleeve, and the inner cavity top of sleeve and battery case 2 is connected, and bullet is provided in sleeve
Spring, through the inner cavity top of spring connection sleeve, temperature sensor 402 is connected to battery 3 by spring for the upper end of temperature sensor 402
Upper surface.Main microprocessor 100 is also connected with reset button 102.
Specifically, the refrigerant cooling mechanism 4 includes not regarding out in the compressor, condenser, expansion valve figure being sequentially connected in series
It with heat-exchange tube 401, is coiled in the chassis 1 wherein the heat-exchange tube 401 is S-shaped, adjacent two column or two rows of electricity
At least one straight section is equipped between pond case 2, it is preferable that straight section there are two being set between adjacent two column or two rows of battery cases 2, two
A straight section is positioned adjacent respectively to two column or two rows of battery cases 2, is full of condensing agent condensing agent in the heat-exchange tube 401
It can be R134, R134a, R22, R407c or R410a etc., temperature sensor 402 be equipped in the battery case 2, when the battery
Temperature > T in case 22When, the starting of refrigerant cooling mechanism 4 cooling, wherein 40 DEG C of < T2< T1。
The control circuit further includes first switch triode Q1, the first relay J1, and main microprocessor 100 is provided with
One control terminal, main microprocessor 100 connect the base stage of first switch triode Q1, first switch triode by the first control terminal
Q1 controls the coil power on/off of the first relay J1, the switch of the normal open switch control compressor of the first relay J1.
Wherein T2For the start-up temperature threshold value of refrigerant cooling mechanism 4, when temperature sensor 402 detects the battery case 2
Interior temperature > T2When, main microprocessor 100 controls first switch triode Q1 conducting, first switch three by the first control terminal
The coil that pole pipe Q1 controls the first relay J1 is powered, the opening of the normal open switch closure control compressor of the first relay J1.
Conversely, control compressor is closed.
The wind-cooling heat dissipating mechanism 5 includes heat dissipation wind channel 504, air collecting chamber 502 and air-exhausting duct 503, is led to above the chassis 1
It crosses support frame 9 and cover board 501 is installed, the air collecting chamber 502 is equipped in the cover board 501, is provided in the tank wall of the battery case 2 perpendicular
The heat dissipation wind channel 504 is formed to through-hole, and the air inlet of the heat dissipation wind channel 504 is towards 1 lower section of chassis, all radiation airs
The gas outlet in road 504 is connected to by guide duct 505 with the air collecting chamber 502, and the air collecting chamber 502 is connected with air-exhausting duct 503, vapour
It is separately installed with the air-exhausting duct 503 in the A column of vehicle, B column and C column, the gas outlet of the air-exhausting duct 503 is located at the vehicle of automobile
It pushes up, mountable discharge fan in the air-exhausting duct 503, to accelerate air draft, which is powered by the battery 3.
The extraction sector 6 includes the negative pressure runner 601 and negative pressure cavity 602 being arranged in the cover board 501, the cover board
The battery case 2 is corresponded on 501 and is equipped with docking end cap 608, and the top of the battery case 2 is protruded into the docking end cap 608, institute
The lower surface of the top surface and the cover board 501 of stating battery case 2 fits closely, the inner wall and the battery of the docking end cap 608
It is equipped with sealing ring 609 between the outer wall of case 2, each row is corresponded in the cover board 501 or each column battery case 2 is equipped with one
The negative pressure runner 601, the negative pressure runner 601 and negative pressure cavity 602 are respectively positioned on the lower section of the air collecting chamber 502, the battery
The inner cavity of case 2 is connected to the corresponding negative pressure runner 601, and the negative pressure runner 601 is connected to the negative pressure cavity 602, described
Negative pressure cavity 602 is connected with vacuum pump 603.
The control circuit further includes second switch triode Q2, the second relay J2, and main microprocessor 100 is provided with
Two control terminals, main microprocessor 100 connect the base stage of second switch triode Q2, second switch triode by the second control terminal
Q2 controls the coil power on/off of the second relay J2, the switch of the normal open switch control vacuum pump 603 of the second relay J2.
It is main when main microprocessor 100 detects the interior air pressure of battery case greater than atmospheric pressure by baroceptor 10
Microprocessor 100 by the second control terminal control second switch triode Q2 conducting, second switch triode Q2 control second after
The coil of electric appliance J2 is powered, the opening of the normal open switch closure control vacuum pump 603 of the second relay J2.Conversely, control vacuum
Pump 603 is closed.
To ensure that entire negative pressure runner still keeps sealing state, the case of the battery case 2 after any one battery falls off
Top is equipped with bleeding point 604, which is up big and down small conical opening, is equipped with shape phase therewith in the bleeding point 604
Matched plug 607 is equipped with seal washer 611, on the cover board 501 between the plug 607 and the inner wall of the bleeding point 604
The corresponding bleeding point 604 offers pumping slot 605, and the notch of the pumping slot 605 and the bleeding point 604 are opposite, the pumping
Air drain 605 is connected to the corresponding negative pressure runner 601, is equipped with plug spring 606 in the pumping slot 605, the plug bullet
Spring 606 pushes the plug 607 to bleeding point 604, is provided with mandril 610 on the battery 3, which overcomes plug bullet
The elastic force of spring 606 jacks up the plug 607 to be connected to the inner cavity of the battery case 2 with the negative pressure runner 601.
The retaining mechanism 7 includes locking latch 701, locking spring 703 and memorial alloy item 704, one of described
It is equipped with latch groove 702 in bottom plate 8, sequentially connected memorial alloy item 704, locking spring 703 and lock are equipped in the latch groove 702
Tight bolt 701, it is preferable that the " T " shape shape of the memorial alloy item 704, the locking spring 703 and memorial alloy item 704
Transverse arm is fixedly connected, and is equipped with locking hole 705 in another described bottom plate 8, and 703 inner end of locking spring is by the memorial alloy
The vertical arm of item 704 is pushed against the slot bottom of the latch groove 702, while 703 outer end of locking spring holds out against the locking latch 701
In 705 bottom hole of locking hole, so that two pieces of bottom plates 8 be locked, the memorial alloy item 704 is preferably that round trip memory is closed
Gold, transformation temperature T1, as temperature > T1 in battery case 2, the memorial alloy item 704 restores to spiral helicine stabilization
State, the slot bottom that the locking spring 703 drives locking latch 701 towards latch groove 702 is mobile, and the locking latch 701 exits institute
705 two pieces of the locking hole bottom plates 8 are stated to be unlocked.
To reinforce sealing, two pieces of bottom plates 8 are hinged by the inner wall of torsional spring and the battery case 2 respectively, the bottom plate 8
The inner wall of the battery case 2 of top is equipped with sealed batten, and the lower surface of the sealed batten takes the form of inclined plane, the bottom plate 8
The inclined-plane that upper surface corresponds to the sealed batten is equipped with matching inclined plane part, and the lower surface bonds of the sealed batten have the
Two sealing strips, the inclined plane part are pushed against on second sealing strip；
The interface of two pieces of bottom plates 8 is step-like in mutually matched three-level, and the three-level step of two pieces of bottom plates 8 is public
Mother's cooperation, wherein on the terrace and table top of first order step, on the table top of second level step and on the terrace of third level step
It is respectively equipped with the first sealing strip 706, the terrace of second level step takes the form of inclined plane, and the latch groove 702 is located at second level step
On terrace.
Compressor, vacuum pump etc. are battery powered.
A circle force snesor 11, the force snesor 11 and the electricity are installed around the battery 3 in the battery case 2
Pond 3 contacts.
The force snesor 11 is LH-Z10 micro-force sensor.
Baroceptor 10 is also equipped in the battery case 2.
As shown in fig. 6, B of the present invention is located at the bottom of automobile A, cover board 501 of the invention can be used as the floor of automobile, note
Recalling alloy bar 704 can be Nitinol etc., and in daily traveling, wind-cooling heat dissipating mechanism 5 is constantly in open state to battery case 2
Heat dissipation, after travelling a period of time, when the temperature in battery case 2 rises to T2When such as 45 DEG C, opens compressor and given by condensing agent
Chassis 1 and battery case 2 radiate, and when baroceptor 10 detects that the air pressure in battery case 2 is greater than atmospheric pressure, open vacuum
Pump 603 is vacuumized to battery case 2, when temperature continues to be increased to T in battery case 21When, it is steady that memorial alloy item 704 returns back to spiral
Stationary state, locking spring 703 is passively mobile towards latch groove slot bottom end, and then drives the passively abjection locking hole 705 of locking latch 701,
Two pieces of bottom plates turn downward opening as shown in figure 1 shown in the battery case of the rightmost side, and battery 3 thereon is detached from battery case 2, can be according to not
Same T1Different types of memorial alloy item 704, such as setting T may be selected1When being 100-130 DEG C, Ni-Ti, Cu-Zn- may be selected
The alloys such as Al, Cu-Al-Ni make memorial alloy item 704, set T1When being 180 DEG C, Ti-15Ni-25Pd may be selected and add
10%Cu makes memorial alloy item 704, sets T1When being 230 DEG C or so, Ti-49.5Ni-15Hf may be selected and add 15%Nb
As memorial alloy item.
It as shown in Figure 10, is another embodiment of retaining mechanism 7, the retaining mechanism 7 is electromagnetic lock 103, electromagnetic lock
103 are connected with main microprocessor 100.Main microprocessor 100 detects that temperature continues in battery case 2 by temperature sensor 402
It is increased to T1When, control electromagnetic lock 103 is opened；Manual switch K, when necessary, Ke Yitong are also connected with from microprocessor
Cross manual switch K switch electromagnetic lock 103.
Preferably, the pumping slot 605 is connected to through solenoid valve 104 with negative pressure runner 601, solenoid valve 104 and main micro process
Device 100 is connected, when main microprocessor 100 detects the air pressure in the battery case 2 by the baroceptor 10 in the battery case 2
When greater than atmospheric pressure, the solenoid valve 104 that main microprocessor 100 controls the battery case 2 is opened, and aspirates the battery case 2.Conversely, control
Solenoid valve 104 processed is closed.
There are two electrode column 31, the inner wall tops of the battery case 2 to be provided with and two electrode columns 31 for the setting of battery 3
The electrode cap 32 of cooperation, electrode column 31 are inserted into electrode cap 32 and fix battery 3, prevent battery 3 from all around swinging, electrode
Cap 32 is connected with output lead.
Preferably, plating nickel spring is fixedly installed in electrode cap 32, plating nickel spring is abutted with electrode column 31.Figure omits.
Another scheme of detection 3 bulging of battery is: being equipped with infrared distance measurement around the battery 3 in the battery case 2
Sensor, the infrared distance sensor are not contacted with the battery 3；Infrared distance sensor is connected with main microprocessor 100.
Infrared distance sensor detects that the distance of battery outer wall is sent to main microprocessor 100, if battery rouses
Swollen, then the distance of infrared distance sensor detection reduces.Infrared distance sensor is not contacted with battery 3, will not be occurred with battery 3
Friction.
Preferably, main microprocessor 100 is also connected with display screen, for showing the temperature of battery 3.It can also show simultaneously
The battery 3 alarmed or fallen off.
Main microprocessor 100 from microprocessor connection electromagnetic lock 103, solenoid valve 104, baroceptor 10, power through sensing
Device 11, temperature sensor 402；One battery case 2 is correspondingly arranged on one from microprocessor.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of anti-spontaneous combustion system of new energy car battery, including chassis (1), it is characterised in that: offered on the chassis (1)
N number of battery case bayonet, N number of battery case bayonet are distributed in array-like, are arranged with battery case (2) in the battery case bayonet,
The bottom of the battery case (2) is closed by two pieces of bottom plates (8), is placed with battery (3) on two pieces of bottom plates (8)；
The chassis (1) is connected with refrigerant cooling mechanism (4), and the battery case (2) is connected with wind-cooling heat dissipating mechanism (5), described
Refrigerant cooling mechanism (4) and wind-cooling heat dissipating mechanism (5) radiate to the battery case (2) simultaneously, and all battery cases (2) also connect
The same extraction sector (6) are connected to, which aspirates the air in each battery case (2)；
Two pieces of bottom plates (8) are hinged with the inner wall of the battery case (2) respectively, are equipped with retaining mechanism (7) between two pieces of bottom plates (8),
As the interior temperature > T of battery case (2)1Shi Suoshu retaining mechanism (7) unlock, two pieces of bottom plates (8) are opened, and the battery (3) is de-
From the corresponding battery case (2)；
The refrigerant cooling mechanism (4), extraction sector (6) are connected with control circuit, and the control circuit is provided with main micro process
Device (100), main microprocessor (100) are connected with baroceptor (10), temperature sensor (402) and combined aural and visual alarm
(101), baroceptor (10) and temperature sensor (402) are installed in battery case (2)；
Main microprocessor (100) controls the switch of extraction sector (6), main microprocessor according to the signal of baroceptor (10)
(100) battery case (2) interior temperature is obtained by temperature sensor (402), when battery case (2) interior temperature is greater than the temperature threshold of setting
Value T3When, main microprocessor (100) controls combined aural and visual alarm (101) and issues alarm signal, temperature threshold T3< T1。
2. the anti-spontaneous combustion system of new energy car battery according to claim 1, it is characterised in that: the refrigerant cooling mechanism
It (4) include the compressor being sequentially connected in series, condenser, expansion valve and heat-exchange tube (401), wherein the heat-exchange tube (401) is set
It sets in the chassis (1), condensing agent is full of in the heat-exchange tube (401), as the temperature > T in the battery case (2)2
When, refrigerant cooling mechanism (4) the starting cooling, wherein 40 DEG C of < T2< T1；
The control circuit further includes first switch triode Q1, the first relay J1, and main microprocessor (100) is provided with first
Control terminal, main microprocessor (100) connect the base stage of first switch triode Q1, first switch triode by the first control terminal
Q1 controls the coil power on/off of the first relay J1, the switch of the normal open switch control compressor of the first relay J1.
3. the anti-spontaneous combustion system of new energy car battery according to claim 1 or 2, it is characterised in that: the wind-cooling heat dissipating
Mechanism (5) includes heat dissipation wind channel (504), air collecting chamber (502) and air-exhausting duct (503), is provided in the tank wall of the battery case (2) perpendicular
It is formed the heat dissipation wind channel (504) to through-hole, the air inlet of the heat dissipation wind channel (504) is towards below chassis (1), the chassis
(1) top is equipped with cover board (501) by support frame (9), is equipped with the air collecting chamber (502) in the cover board (501), all described
The gas outlet of vertical through holes is connected to by guide duct (505) with the air collecting chamber (502), air collecting chamber (502) row of being connected with
Air hose (503).
4. the anti-spontaneous combustion system of new energy car battery according to claim 3, it is characterised in that: the extraction sector (6)
Including the negative pressure runner (601) and negative pressure cavity (602) being arranged in the cover board (501), the top surface of the battery case (2) and institute
The lower surface for stating cover board (501) fits closely, and each row is corresponded in the cover board (501) or each column battery case (2) sets
There is the negative pressure runner (601), the inner cavity of the battery case (2) is connected to the corresponding negative pressure runner (601), described
Negative pressure runner (601) is connected to the negative pressure cavity (602), and the negative pressure cavity (602) is connected with vacuum pump (603)；
The control circuit further includes second switch triode Q2, the second relay J2, and main microprocessor (100) is provided with second
Control terminal, main microprocessor (100) connect the base stage of second switch triode Q2, second switch triode by the second control terminal
Q2 controls the coil power on/off of the second relay J2, the switch of normal open switch control vacuum pump (603) of the second relay J2.
5. the anti-spontaneous combustion system of new energy car battery according to claim 4, it is characterised in that: the battery case (2)
Case top is equipped with bleeding point (604), is equipped with the plug (607) that shape therewith matches, the cover board in the bleeding point (604)
(501) bleeding point (604) is corresponded on offers pumping slot (605), the notch and the bleeding point of the pumping slot (605)
(604) relatively, the pumping slot (605) is connected to the corresponding negative pressure runner (601), installation in the pumping slot (605)
There are plug spring (606), which pushes the plug (607) bleeding point (604) to, sets on the battery (3)
Mandril (610) are equipped with, which overcomes the elastic force of plug spring (606), and the plug (607) are jacked up to make institute
The inner cavity for stating battery case (2) is connected to the negative pressure runner (601).
6. the anti-spontaneous combustion system of new energy car battery according to claim 5, it is characterised in that: on the cover board (501)
The corresponding battery case (2) is equipped with docking end cap (608), and the docking end cap (608) is protruded on the top of the battery case (2)
It is interior, sealing ring (609) are equipped between the inner wall of docking end cap (608) and the outer wall of the battery case (2).
7. the anti-spontaneous combustion system of new energy car battery according to claim 1, it is characterised in that: the retaining mechanism (7)
Including locking latch (701), locking spring (703) and memorial alloy item (704), it is equipped with and inserts in one of bottom plate (8)
Cotter way (702), the latch groove (702) is interior to be equipped with sequentially connected memorial alloy item (704), locking spring (703) and locks slotting
It sells (701), is equipped with locking hole (705) in another described bottom plate (8), the memory is closed in locking spring (703) inner end
Gold bar (704) is pushed against the slot bottom of the latch groove (702), and locking spring (703) outer end holds out against the locking latch (701)
In the locking hole (705) bottom hole to lock two pieces of bottom plates (8), the transformation temperature of the memorial alloy item (704)
For T1, as the interior temperature > T of battery case (2)1When, the memorial alloy item (704) is restored to spiral helicine stable state, the locking
The slot bottom that spring (703) drives locking latch (701) towards latch groove (702) is mobile, and the locking latch (701) exits the lock
(705) two pieces of the tieholen bottom plates (8) are unlocked.
8. the anti-spontaneous combustion system of new energy car battery according to claim 1, it is characterised in that: the retaining mechanism (7)
For electromagnetic lock (103), electromagnetic lock (103) is connected with main microprocessor (100).
9. the anti-spontaneous combustion system of new energy car battery according to claim 7, it is characterised in that: two pieces of bottom plates (8)
Interface it is step-like in mutually matched three-level, the three-level step male and female cooperation of two pieces of bottom plates (8), wherein first order platform
The first sealing strip is respectively equipped on the terrace and table top of rank, on the table top of second level step and on the terrace of third level step
(706), the terrace of second level step takes the form of inclined plane, and the latch groove (702) is located on the terrace of second level step.
10. the anti-spontaneous combustion system of new energy car battery according to claim 7, it is characterised in that: in the battery case (2)
Force sensor (11) are installed around the battery (3), the force snesor (11) contacts with the battery (3)；Force snesor
(11) it is connected with main microprocessor (100).
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| CN114374060A (en) * | 2022-03-22 | 2022-04-19 | 深圳市青之鸟科技有限公司 | Be applied to plant protection unmanned aerial vehicle's group battery |
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