CN110416454A - A kind of safe and reliable new energy car battery system - Google Patents
A kind of safe and reliable new energy car battery system Download PDFInfo
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- CN110416454A CN110416454A CN201910635902.5A CN201910635902A CN110416454A CN 110416454 A CN110416454 A CN 110416454A CN 201910635902 A CN201910635902 A CN 201910635902A CN 110416454 A CN110416454 A CN 110416454A
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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
-
- 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
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. 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)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a kind of safe and reliable new energy car battery systems, 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 pumping negative pressure mechanism, it takes out negative pressure mechanism and 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 present invention carries out double-radiation function to battery case simultaneously by refrigerant cooling mechanism and wind-cooling heat dissipating mechanism, good heat dissipation effect, when battery, which is abnormal, releases flammable explosive gas, the flammable explosive gas that can timely battery be released by taking out negative pressure mechanism is discharged, and when battery temperature is persistently increased to possible spontaneous combustion, the battery can be made to be detached from automobile by the unlock of retaining mechanism.
Description
Technical field
The present invention relates to batteries of electric automobile technical fields, and in particular to a kind of safe and reliable new energy car battery system
System.
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 a kind of safe and reliable new energy car battery systems.
Its technical solution is as follows: a kind of safe and reliable new energy car battery system, including chassis, key are:
N number of battery case bayonet is offered on the chassis, N number of battery case bayonet is distributed in array-like, in the battery case bayonet
It is arranged with battery case, the bottom of 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 pumping Negative pressure machine
The air in each battery case pumping aspirates in structure, the pumping negative pressure mechanism；
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.
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, take out sulfur dioxide that negative pressure mechanism can timely release battery,
The discharge of the flammable explosive gas such as hydrogen, oxygen, prevents these gases to be enriched with excessive concentrations in battery case and set off an explosion, thus
It takes defensive measure to provide valuable operable time for car owner, greatly improves the safety coefficient of electric car, and when electricity
When pond constant temperature is increased to possible spontaneous combustion, retaining mechanism unlock, battery automatically disengages automobile, and automobile can rely on coast one
It stops after the section time, then carries out the processing such as alarm, the present invention effectively improves the security reliability of battery by multiple-protection, protects
The safety for having demonstrate,proved driver and passenger, automobile itself prevents serious accident and reduces economic loss.
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, is equipped at least one straight section, institute between adjacent two column or two rows of battery cases
It states full of condensing agent in heat-exchange tube, the battery case is interior to be equipped with temperature 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 is 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, start refrigerant cooling mechanism in time and radiate to battery, can effectively promote the service life and efficiency of battery, while also can
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 pumping negative pressure mechanism includes the negative pressure runner and negative pressure cavity being arranged in the cover board, the top surface of the battery case
It is fitted closely with the lower surface of the cover board, each row is corresponded in the cover board or each column battery case is equipped with described in one
Negative pressure runner, the inner cavity of the battery case are connected to the corresponding negative pressure runner, and the negative pressure runner and the negative pressure cavity connect
Logical, the negative pressure cavity is connected with vacuum pump.Using this structure, vacuum pump can in time be taken out the inflammable and explosive automobile in battery case
Out, make inwardly to keep certain vacuum degree, prevent battery explosion.
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.
Pressure sensor is installed around the battery in above-mentioned battery case, the pressure sensor connects with the battery
It touches, is also equipped with baroceptor in the battery case.Using this structure, it is enough for can detect battery by infrared distance sensor
There is bulging, 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, it is inflammable easily to take out sulfur dioxide, hydrogen, oxygen that negative pressure mechanism can timely release battery etc.
The discharge of gas explosion body, prevents these gases to be enriched with excessive concentrations in battery case and set off an explosion, and takes defensive measure for driver
Valuable buffer time is provided, and when battery temperature is persistently increased to possible spontaneous combustion, the unlock of retaining mechanism can be passed through
The battery is set to be detached from automobile, automobile can stop afterwards for a period of time by coast, then carry out the processing such as alarm, and the present invention passes through
Multiple-protection effectively improves the security reliability of battery, ensure that the safety of driver and passenger, automobile itself, prevents great
Safety accident and reduction 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.
Specific embodiment
The invention will be further described with attached drawing with reference to embodiments.
As shown in figs 1-9, a kind of safe and reliable new energy car battery system, including chassis 1 are opened on the chassis 1
Equipped with N number of battery case bayonet, N number of battery case bayonet rectangular array shape distribution (it is for example circular to be also possible to other shapes
Array distribution), battery case 2 is arranged in the battery case bayonet, battery 3 is placed in the battery case 2, and the chassis 1 connects
It is connected to refrigerant cooling mechanism 4, 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 radiates to the battery case 2 simultaneously, and all battery cases 2 are also connected with the same pumping negative pressure mechanism 6, the pumping negative pressure
The air in each battery case 2 aspirates in mechanism 6；
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 retaining mechanism 7 is equipped between two pieces of bottom plates 8, the battery 3 is provided on 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 N number of battery 3 forms the power supply system of automobile in the form of multiple series connection and parallel connection, when one of them is super
When the battery 3 of temperature falls off, power supply system remains to output electric current, which remains to push running car, but exports electric current and become smaller.
For example 15 batteries, every 5 series connection are in parallel again after series connection.
The refrigerant cooling mechanism 4, pumping negative pressure mechanism 6 are connected with control circuit, and the control circuit is provided with main micro- place
Device 100 is managed, main microprocessor 100 is connected with baroceptor 10, temperature sensor 402 and combined aural and visual alarm 101, air pressure transmission
Sensor 10 and temperature sensor 402 are installed in battery case 2；
Main microprocessor 100 controls the switch for taking out negative pressure mechanism 6, main microprocessor according to the signal of baroceptor 10
100 obtain temperature in battery case 3 by temperature sensor 402, when temperature is greater than the temperature threshold T of setting in battery case 33When,
Main microprocessor 100 controls combined aural and visual alarm 101 and issues alarm signal, temperature threshold T3< T1, wherein T1For the highest of battery case
Temperature limit.
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 that compressor, condenser, the expansion valve being sequentially connected in series (do not regard in figure
Out) and heat-exchange tube 401, it is coiled in the chassis 1 wherein the heat-exchange tube 401 is S-shaped, described in adjacent two column or two rows
At least one straight section is equipped between battery case 2, it is preferable that it sets between adjacent two column or two rows of battery cases 2 there are two straight section,
Two straight sections are positioned adjacent respectively to two column or two rows of battery cases 2, and it is (cold to be full of condensing agent in the heat-exchange tube 401
Solidifying agent can be R134, R134a, R22, R407c or R410a etc.), the battery case 2 is interior to be equipped with temperature sensor 402, works as institute
State the temperature > T in battery case 22When, the starting of refrigerant cooling mechanism 4 cooling, wherein 40 DEG C of < T2< T1, and T2< T3。
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 control compressor of the first relay J1.Conversely,
Compressor is controlled to close.
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 negative pressure mechanism 6 of taking out includes the negative pressure runner 601 and negative pressure cavity 602 being arranged in the cover board 501, the lid
The battery case 2 is corresponded on plate 501 is equipped with docking end cap 608, the top of the battery case 2 is protruded into the docking end cap 608,
The top surface of the battery case 2 is fitted closely with the lower surface for docking end cap 608, the inner wall of the docking end cap 608 and institute
It states and is equipped with sealing ring 609 between the outer wall of battery case 2, each row is corresponded in the cover board 501 or each column battery case 2 is set
There is 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, institute
The inner cavity for stating battery case 2 is connected to the corresponding negative pressure runner 601, and the negative pressure runner 601 connects with the negative pressure cavity 602
Logical, 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
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.
When main microprocessor 100 passes through interior air pressure >=1/2 or 0.7 atmospheric pressure that baroceptor 10 detects battery case
Qiang Shi, main microprocessor 100 control second switch triode Q2 conducting, second switch triode Q2 control by the second control terminal
The coil of second relay J2 is powered, the opening of the normal open switch control vacuum pump 603 of the second relay J2.Conversely, control is true
Sky 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 > T in battery case 21When, the memorial alloy item 704 restores to spiral helicine stable 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 the lock
705 two pieces of the tieholen bottom plates 8 are 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 pressure sensor 11, the pressure sensor 11 and institute are installed around the battery 3 in the battery case 2
The contact of battery 3 is stated, the pressure sensor 11 is LH-Z10 micro pressure sensor, passes through the pressure change of pressure sensor 11
It may know that whether battery 3 has bulging.
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 pass through condensing agent
It radiates to chassis 1 and battery case 2, when baroceptor 10 detects air pressure >=1/2 or 0.7 atmospheric pressure in battery case 2
(being also possible to other values, as long as the vacuum degree in battery case 2 is greater than preset vacuum degree), vacuum pump 603 is opened to battery case 2
It vacuumizes, when temperature continues to be increased to T in battery case 21When, memorial alloy item 704 returns back to spiral stable state, locking spring
703 is passively mobile towards latch groove slot bottom end, and then locking latch 701 is driven passively to deviate from locking hole 705, and two pieces of bottom plates turn downward
Dynamic to open (as shown in figure 1 shown in the battery case of the rightmost side), battery 3 thereon is detached from battery case 2, can be according to different T1It may be selected
Different types of memorial alloy item 704, such as setting T1When being 100-130 DEG C, Ni-Ti, Cu-Zn-Al, Cu-Al-Ni may be selected
Equal alloys make memorial alloy item 704, set T1When being 180 DEG C, Ti-15Ni-25Pd may be selected and add 10%Cu production note
Recall alloy bar 704, sets T1When being 230 DEG C or so, Ti-49.5Ni-15Hf may be selected and add 15%Nb as memorial alloy
Item.
There are two electrode columns for the setting of battery 3, and the inner wall top of the battery case 2 is provided with and two electrode columns cooperate
Electrode cap, electrode column insertion electrode cap in battery 3 is fixed, prevent battery 3 from all around swinging, electrode cap is connected with defeated
Conducting wire out.
Preferably, plating nickel spring is fixedly installed in electrode cap, plating nickel spring is abutted with electrode column.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 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.
Main microprocessor 100 is through connecting baroceptor 10, pressure sensor 11, temperature sensor 402 from microprocessor；
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 safe and reliable new energy car battery system, including chassis (1), it is characterised in that: opened on the chassis (1)
Equipped with N number of battery case bayonet, N number of battery case bayonet is distributed in array-like, is arranged with battery case in the battery case bayonet
(2), 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
It is connected to the same pumping negative pressure mechanism (6), 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).
2. the safe and reliable new energy car battery system of one kind according to claim 1, it is characterised in that: the refrigerant
Cooling mechanism (4) includes the compressor being sequentially connected in series, condenser, expansion valve and heat-exchange tube (401), wherein the heat-exchange tube
(401) S-shaped to be coiled in the chassis (1), it is straight that at least one is equipped between adjacent two column or two rows of battery cases (2)
Section, the heat-exchange tube (401) is interior to be full of condensing agent, temperature sensor (402) is equipped in the battery case (2), when the electricity
Temperature > T in pond case (2)2When, refrigerant cooling mechanism (4) the starting cooling, wherein 40 DEG C of < T2< T1。
3. the safe and reliable new energy car battery system of one kind according to claim 1 or 2, it is characterised in that: described
Wind-cooling heat dissipating mechanism (5) includes heat dissipation wind channel (504), air collecting chamber (502) and air-exhausting duct (503), the tank wall of the battery case (2)
In be provided with vertical through holes and formed the heat dissipation wind channel (504), the air inlet of the heat dissipation wind channel (504) towards below chassis (1),
Cover board (501) are installed by support frame (9) above the chassis (1), are equipped with the air collecting chamber (502) in the cover board (501),
The gas outlet of all vertical through holes is connected to by guide duct (505) with the air collecting chamber (502), the air collecting chamber (502)
It is connected with air-exhausting duct (503).
4. the safe and reliable new energy car battery system of one kind according to claim 3, it is characterised in that: the A of automobile
It is separately installed in column, B column and C column the air-exhausting duct (503), the gas outlet of the air-exhausting duct (503) is located at the roof of automobile.
5. the safe and reliable new energy car battery system of one kind according to claim 3, it is characterised in that: described take out is born
Press mechanism (6) includes the negative pressure runner (601) and negative pressure cavity (602) being arranged in the cover board (501), the battery case (2)
Top surface and the lower surface of the cover board (501) fit closely, each row or each column electricity are corresponded in the cover board (501)
Pond case (2) is equipped with a negative pressure runner (601), the inner cavity of the battery case (2) and the corresponding negative pressure runner (601)
Connection, the negative pressure runner (601) are connected to the negative pressure cavity (602), and the negative pressure cavity (602) is connected with vacuum pump (603).
6. the safe and reliable new energy car battery system of one kind according to claim 5, it is characterised in that: the battery
The case top of case (2) is equipped with bleeding point (604), is equipped with the plug (607) that shape therewith matches, institute in the bleeding point (604)
It states and corresponds to the bleeding point (604) on cover board (501) and offer pumping slot (605), the notch of the pumping slot (605) and the pumping
Relatively, the pumping slot (605) is connected to port (604) with the corresponding negative pressure runner (601), in the pumping slot (605)
Plug spring (606) are installed, which pushes the plug (607) bleeding point (604) to, the battery (3)
On be provided with mandril (610), which overcomes the elastic force of plug spring (606), by the plug (607) jack up to
It is connected to the inner cavity of the battery case (2) with the negative pressure runner (601).
7. the safe and reliable new energy car battery system of one kind according to claim 6, it is characterised in that: the cover board
(501) battery case (2) are corresponded on and are equipped with docking end cap (608), and the docking end cap is protruded on the top of the battery case (2)
(608) in, sealing ring (609) are equipped between the inner wall of docking end cap (608) and the outer wall of the battery case (2).
8. the safe and reliable new energy car battery system of one kind according to claim 3, it is characterised in that: the locking
Mechanism (7) includes locking latch (701), locking spring (703) and memorial alloy item (704), and one of bottom plate (8) is interior
Be equipped with equipped with latch groove (702), in the latch groove (702) sequentially connected memorial alloy item (704), locking spring (703) and
Locking latch (701), another described bottom plate (8) is interior to be equipped with locking hole (705), and locking spring (703) inner end will be described
Memorial alloy item (704) is pushed against the slot bottom of the latch groove (702), and locking spring (703) outer end is by the locking latch
(701) it holds out against in the locking hole (705) bottom hole to lock two pieces of bottom plates (8), the memorial alloy item (704)
Transformation temperature is T1, as the interior temperature > T of battery case (2)1When, the memorial alloy item (704) is restored to spiral helicine stable state,
The slot bottom that the locking spring (703) drives locking latch (701) towards latch groove (702) is mobile, and the locking latch (701) is moved back
(705) two pieces of the locking hole bottom plate (8) is unlocked out.
9. the safe and reliable new energy car battery system of one kind according to claim 8, it is characterised in that: described in two pieces
The interface of bottom plate (8) 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 is respectively equipped 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
Sealing strip (706), the terrace of second level step take the form of inclined plane, and the latch groove (702) is located on the terrace of second level step.
10. the safe and reliable new energy car battery system of one kind according to claim 8, it is characterised in that: the electricity
It is equipped with pressure sensor (11) in pond case (2) around the battery (3), the pressure sensor (11) and the battery (3)
Contact, the battery case (2) is interior to be also equipped with baroceptor (10).
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| CN110416454B (en) | 2022-08-23 |
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