CN106711548A - Power battery air heat management system for pure electric vehicle and operating method of system - Google Patents
Power battery air heat management system for pure electric vehicle and operating method of system Download PDFInfo
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- CN106711548A CN106711548A CN201710096457.0A CN201710096457A CN106711548A CN 106711548 A CN106711548 A CN 106711548A CN 201710096457 A CN201710096457 A CN 201710096457A CN 106711548 A CN106711548 A CN 106711548A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- H01M10/60—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
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
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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
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
-
- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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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- Automation & Control Theory (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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Abstract
The invention relates to a power battery air heat management system for a pure electric vehicle and an operating method of the system. The power battery air heat management system for the pure electric vehicle comprises an air distribution pipeline connected with a power battery pack box, a temperature sensor and a battery management system all-in-one machine, wherein one end of the air distribution pipeline is sequentially connected with a heater, an air pump, an air storage tank, a two-position three-way electromagnetic directional valve E, a cooler, a two-position three-way electromagnetic directional valve F and a two-position two-way electromagnetic directional valve; the two-position three-way electromagnetic directional valve E is connected with the two-position three-way electromagnetic directional valve F through a pipeline; and the other end of the air distribution pipeline is sequentially connected with a two-position three-way electromagnetic directional valve A and the two-position two-way electromagnetic directional valve. The power battery air heat management system disclosed by the invention has multiple temperature regulation modes, is capable of performing corresponding mode selection aiming at different battery conditions, realizing reasonable and fine management of the power battery and realizing automatic switch and control of multiple modes according to the temperature change in the battery box, and has the advantages of accurate adjustment, rapid switch and the like.
Description
Technical field
The present invention relates to a kind of power battery of pure electric automobile air hot pipe reason system and its method of work, belong to electronic vapour
Car technical field.
Background technology
It is increasingly serious the problems such as global energy shortage and environmental pollution with economic fast development, develop pure electricity
Electrical automobile turns into the effective way for solving this problem at present.And electrokinetic cell is used as the core of restriction Development of Electric Vehicles
Part, is always focus that numerous research and development, production unit fall over each other input.Wherein the heat management of electrokinetic cell turn into key technology it
One.
The battery thermal management method of present engineer applied is mainly free air cooling, liquid cooling.Liquid-cooling system structure
Complexity, quality is big, easily short circuit, and cooling medium is easily revealed, so using less.Heat is carried out to electrokinetic cell by medium of air
Management, exactly allows air is horizontal to plunder battery pack, to take away or bring heat, reaches the purpose of radiating or heating.Air-cooled radiating system
System is with its simple structure, and quality is smaller, and cooling medium leakage does not pollute the environment, energy available ventilation when producing pernicious gas, into
Preferred option of the advantages of this is relatively low as electric automobile power battery radiating.
The air cooled scheme for currently using is mostly fairly simple, and some batteries are exposed to natural cooling, nothing in air
Method meets the demand of electrokinetic cell heat management.The cooling scheme of partial power battery is cooled down using constant pressure, it is impossible to according to
The temperature change of battery is cooled down accordingly, increased the extra consumption of battery electric quantity, and energy-saving effect is poor.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of power battery of pure electric automobile air hot pipe reason system.
The present invention also provides the method for work that above-mentioned power battery of pure electric automobile air hot pipe manages system.
Technical scheme is as follows：
A kind of power battery of pure electric automobile air hot pipe manages system, it is characterised in that including connection power battery pack case
Air distribution manifold, temperature sensor and battery management system all-in-one；
Air distribution manifold one end is sequentially connected heater, air pump, air accumulator, two position, three-way electromagnetic change valve E, cooling
Device, two position, three-way electromagnetic change valve F and two-position two-way electromagnetic directional valve, wherein two position, three-way electromagnetic change valve E also pass through pipeline
Connection two position, three-way electromagnetic change valve F；The air distribution manifold other end is sequentially connected two position, three-way electromagnetic change valve A and two two
Electric change valve；
Temperature sensor be arranged in power battery pack case and with battery management system one mechatronics, battery management system
Entity machine also respectively with two position, three-way electromagnetic change valve A, heater, air pump, two position, three-way electromagnetic change valve E, cooler,
Two position, three-way electromagnetic change valve F and two-position two-way electromagnetic directional valve are electrically connected.
Preferably, the two-position two-way electromagnetic directional valve is also connected with air cleaner A.
Preferably, the two position, three-way electromagnetic change valve E is also connected with air cleaner B.
Preferably, the air hot pipe reason system also includes two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve
D and two position, three-way electromagnetic change valve B；Air distribution manifold one end is by connecting two position, three-way electromagnetic change valve C, two-position three way electricity
Heater is reconnected after magnetic reversal valve D, the air distribution manifold other end is reconnected after connecting two position, three-way electromagnetic change valve B
Two position, three-way electromagnetic change valve A, the two position, three-way electromagnetic change valve C also connect two position, three-way electromagnetic change valve A by pipeline,
Two position, three-way electromagnetic change valve D also connects two position, three-way electromagnetic change valve B by pipeline；Two position, three-way electromagnetic change valve C, two
Three-way solenoid valve D and two position, three-way electromagnetic change valve B also respectively with battery management system one mechatronics.
Preferably, the both sides up and down of the power battery pack case are each provided with three interfaces, and air distribution manifold is by connecing
Mouth is connected with power battery pack case.The advantage of this design is that air distribution manifold is that air is passed through into three dispersed placements
Entrance is input in power battery pack case, then will be exported by the air of heat transfer by three outlets of dispersed placement, is prevented
Only dissipate (plus) heat concentrates, be conducive to dispersion dissipate (plus) heat and it is balanced dissipate (plus) heat, setting for power battery pack casing can also be reduced
Meter processing cost.
A kind of power battery of pure electric automobile air hot pipe manages the method for work of system, it is characterised in that including following step
Suddenly,
A gas storage circulation patterns：
When pure electric automobile starts to start, battery management system all-in-one starts gas storage circulation pattern, now two three
Electric change valve A energizations are acted, and air pump startup carries out air circulation；
B normal temperature refrigerating modes：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts normal temperature cooling
Modes I, now two position, three-way electromagnetic change valve E energizations action, air pump startup realizes that extraneous air enters system, to power
Battery pack carries out normal temperature cooling from top to bottom；
After normal temperature refrigerating mode I runs a period of time, battery management system all-in-one restarts normal temperature refrigerating mode II,
Now two position, three-way electromagnetic change valve B, two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D, two-position three-way electromagnetic
Reversal valve E energizations are acted, and air pump startup realizes that extraneous air enters system, normal temperature is carried out from top to bottom to power battery pack
Cooling；
C sub-cooled patterns：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts sub-cooled
Modes I, now two position, three-way electromagnetic change valve A energizations action, air pump and cooler start, and outside normal temperature air is through supercooling
Device is cooled into Cryogenic air, and Cryogenic air carries out sub-cooled from top to bottom to power battery pack；
After sub-cooled modes I runs a period of time, battery management system all-in-one restarts sub-cooled mode II,
Now two position, three-way electromagnetic change valve A, two position, three-way electromagnetic change valve B, two position, three-way electromagnetic change valve C, two-position three-way electromagnetic
Reversal valve D energizations are acted, and air pump and cooler start, and outside normal temperature air is cooled into Cryogenic air through subcooler, low
Warm air carries out sub-cooled from top to bottom to power battery pack；
D heating modes：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts heating mode
I, now two position, three-way electromagnetic change valve F and two-position two-way electromagnetic directional valve energization is acted, and forms closing inner circulating air loop,
Air pump and heater starting, inner air start the cycle over flowing, start simultaneously at and air is heated, to power battery pack from
Under to above being heated；
After heating mode I runs a period of time, battery management system all-in-one restarts heating mode II, now two
Three-way solenoid valve B, two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D, two position, three-way electromagnetic change valve F,
Two-position two-way electromagnetic directional valve energization action, air pump and heater starting, inner air start the cycle over flowing, and it is right to start simultaneously at
Air is heated, and power battery pack is heated from top to bottom.
The beneficial effects of the present invention are：
1st, electrokinetic cell air hot pipe reason system of the present invention, with various temperature shaping modes, can be directed to different electricity
Pond operating mode carries out correspondingly model selection, realizes rationalization, fine-grained management to electrokinetic cell.
2nd, electrokinetic cell air hot pipe of the present invention reason system, it is open compared to traditional using the air-cooled pattern of relative enclosed
Refrigerating mode, temperature adjustment is more accurate, and air quality is higher.
3rd, electrokinetic cell air hot pipe reason system of the present invention, using enclosed heating mode, can realize the circulation of hot-air
Utilize, energy saving, improve the efficiency of heating surface.
4th, the present invention can be realized using the air hot pipe reason system of intelligentized control method according to the temperature change in battery case
The automatic switchover and control of various modes, with regulation precisely, the advantage such as conversion is quick.
5th, the present invention chooses suitable air solenoid directional control valve, it is ensured that as far as possible few under different mode in such a system
Part energization is acted so that system charge consumption is minimum.
Brief description of the drawings
Fig. 1 is the annexation schematic diagram that air hot pipe of the present invention manages various parts；
Fig. 2 is working state figure of the air hot pipe reason system of the present invention under gas storage circulation pattern；
Fig. 3 is working state figure of the air hot pipe reason system of the present invention under normal temperature refrigerating mode I；
Fig. 4 is working state figure of the air hot pipe reason system of the present invention under normal temperature refrigerating mode II；
Fig. 5 is working state figure of the air hot pipe reason system of the present invention under sub-cooled modes I；
Fig. 6 is working state figure of the air hot pipe reason system of the present invention under sub-cooled mode II；
Fig. 7 is working state figure of the air hot pipe reason system of the present invention under heating mode I；
Fig. 8 is working state figure of the air hot pipe reason system of the present invention under heating mode II；
Wherein：1st, air cleaner A；2nd, two position, three-way electromagnetic change valve A；3rd, two position, three-way electromagnetic change valve B；4th, battery
Management system all-in-one；5th, temperature sensor；6th, power battery pack case；7th, air distribution manifold；8th, two-position three-way electromagnetic commutation
Valve C；9th, two position, three-way electromagnetic change valve D；10th, heater；11st, air pump；12nd, air accumulator；13rd, air cleaner B；14th, two
Position three-way solenoid valve E；15th, cooler；16th, two position, three-way electromagnetic change valve F；17th, two-position two-way electromagnetic directional valve.
Specific embodiment
Below by embodiment and with reference to accompanying drawing, the present invention will be further described, but not limited to this.
Embodiment 1：
A kind of power battery of pure electric automobile air hot pipe manages system, including the air of connection power battery pack case 6 is distributed
Pipeline 7, temperature sensor 5 and battery management system all-in-one 4；
The one end of air distribution manifold 7 is sequentially connected heater 10, air pump 11, the commutation of air accumulator 12, two-position three-way electromagnetic
Valve E14, cooler 15, two position, three-way electromagnetic change valve F16 and two-position two-way electromagnetic directional valve 17, wherein two-position three-way electromagnetic are changed
Two position, three-way electromagnetic change valve F16 is also connected by pipeline to valve E14；The other end of air distribution manifold 7 connection two-position three way electricity
Magnetic reversal valve A2 and two-position two-way electromagnetic directional valve 17；
Temperature sensor 5 is arranged in power battery pack case 6 and is electrically connected with battery management system all-in-one 4, cell tube
Reason system all-in-one machine 4 also commutates with two position, three-way electromagnetic change valve A2, heater 10, air pump 11, two-position three-way electromagnetic respectively
Valve E14, cooler 15, two position, three-way electromagnetic change valve F16 and two-position two-way electromagnetic directional valve 17 are electrically connected.
In the present embodiment, air pump model Qihai FQY4816, two position, three-way electromagnetic change valve selects model PC23-1/
The direct-acting electromagnetic valve of 2T, two-position two-way electromagnetic directional valve selects the Direct-action electromagnetic valve of model PC22-1/2T, air cleaner
Model LF-1/8-D-5M-MINI-A, temperature sensor selects the thermistor (temperature) sensor of model SA1-TH-44004-40-T,
Air accumulator, cooler, heater are customized according to actual conditions, and battery management system all-in-one selects Zhejiang Gao Taihaoneng sections
The battery management system all-in-one of the model QT-BCU-48T16C of skill Co., Ltd production.
Upper and lower sides respectively set four temperature sensors in power battery pack case 6, and middle position sets a temperature and passes
Sensor.This is designed to gather the temperature in battery pack box at each position comprehensively, exactly, is follow-up accurate regulating cell group
Temperature in case provides foundation, it is to avoid the phenomenon of excessive temperature differentials in battery pack box occur.
The both sides up and down of power battery pack case 6 are each provided with three interfaces, and air distribution manifold 7 passes through interface and power electric
Pond group case 6 is connected.The advantage of this design is that air distribution manifold is that air is input to by the entrance of three dispersed placements
In power battery pack case, then will be exported by the air of heat transfer by three outlets of dispersed placement, prevent from dissipating (plus) heat
Concentrate, be conducive to dispersion dissipate (plus) heat and it is balanced dissipate (plus) heat, the design processing cost of power battery pack casing can also be reduced.
In addition, two-position two-way electromagnetic directional valve 17 is also connected with air cleaner A1, two-position three-way electromagnetic commutation reversal valve E14
It is also connected with air cleaner B13.Increased air cleaner, ensure that the degree of purity into air in system, it is to avoid impurity
Influence the using effect and service life of electrokinetic cell.
Operation principle：The present embodiment technical scheme, by the temperature data in temperature sensor collection battery pack box, and by temperature
Degrees of data is converted to electric signal transmission and gives battery management system all-in-one, is judged by battery management system all-in-one, when reaching
Opened under the program by starting the corresponding program in implantation battery management system all-in-one in advance to during a certain threshold range
Corresponding mechano-electronic element, realizes the operation of different working modes, and the purpose of regulating cell group the temperature inside the box is reached with this, protects
Hinder the normal operation of electrokinetic cell.
Embodiment 2：
A kind of power battery of pure electric automobile air hot pipe manages system, and as described in Example 1, its difference exists structure
In：Air hot pipe reason system also includes two position, three-way electromagnetic change valve B3, two position, three-way electromagnetic change valve C8 and two-position three way electricity
Magnetic reversal valve D9, the one end of air distribution manifold 7 is by connecting two position, three-way electromagnetic change valve C8, two position, three-way electromagnetic change valve D9
Heater 10 is reconnected afterwards；The other end of air distribution manifold 7 reconnects two after connecting two position, three-way electromagnetic change valve B3
Three-way solenoid valve A2, the two position, three-way electromagnetic change valve C7 also connect two position, three-way electromagnetic change valve A2 by pipeline,
Two position, three-way electromagnetic change valve D9 also connects two position, three-way electromagnetic change valve B3 by pipeline；Two position, three-way electromagnetic change valve C8,
Two position, three-way electromagnetic change valve D9 and two position, three-way electromagnetic change valve B3 are also electrically connected with battery management system all-in-one 4 respectively.
The present embodiment is on the basis of embodiment 1, it is possible to achieve under same pattern, and air flow is from bottom to up or from up to
Lower two kinds of directions carry out temperature adjustment to electrokinetic cell, the purpose is to make the inside diverse location of power battery pack the temperature difference more
It is small, preferably balanced radiating.
Embodiment 3：
A kind of power battery of pure electric automobile air hot pipe manages the method for work of system, using the air described in embodiment 2
Heat management system, specific work process is comprised the following steps,
A gas storage circulation patterns：(as shown in Figure 2)
When pure electric automobile starts to start, battery management system all-in-one 4 starts gas storage circulation pattern, now two three
Electric change valve A2 energizations are acted, and air pump 11 starts, and carries out air circulation；
In such a mode, the toxic gas of battery operated release is discharged in whole system, while test whole system being
It is no unobstructed, prevent from not changing the system congestion that air filtering core or internal structure failure are caused due to long-time, and make in air accumulator
There are enough air, are that the interior circulation of system is ready.
B normal temperature refrigerating modes：
Under common operating mode, electrokinetic cell heating is relatively low, and carrying out cooling using normal temperature air can reach for pure electric automobile
Temperature requirement.Normal temperature refrigerating mode is divided into I, II two kind, normal temperature refrigerating mode I so that hot-air enters from the bottom of power battery pack
Enter, then discharged from the top of power battery pack；Normal temperature refrigerating mode II causes that hot-air enters from the top of power battery pack,
Discharged from the bottom of power battery pack, so as to realize that alternative expression normal temperature is cooled down.
When the temperature in temperature sensor detects power battery pack case reaches given threshold, battery management system is integrally
Machine 4 first starts normal temperature refrigerating mode I (as shown in Figure 3), now two position, three-way electromagnetic change valve E14 energizations action, air pump 11
Start, realize that extraneous air enters system, normal temperature cooling is carried out from top to bottom to power battery pack；
(can be by programming setting run time), battery management system one after normal temperature refrigerating mode I runs a period of time
Body machine 4 restarts normal temperature refrigerating mode II (as shown in Figure 4), and now two position, three-way electromagnetic change valve B3, two-position three-way electromagnetic are changed
Acted to valve C8, two position, three-way electromagnetic change valve D9, two position, three-way electromagnetic change valve E14 energizations, air pump 11 starts, realized outer
Portion's air enters system, and normal temperature cooling is carried out from top to bottom to power battery pack；
Under the pattern, the temperature of electrokinetic cell alternately, is finally made using normal temperature refrigerating mode I and normal temperature refrigerating mode II
Degree is maintained in the reasonable scope, and preventing the excessive temperature differentials of import and export in temperature of powered cell overheat and power battery box influences
The using effect and service life of electrokinetic cell.
C sub-cooled patterns：
Under heavy load operating mode, the power output of electrokinetic cell becomes big to pure electric automobile, and self-heating is serious, normal temperature air
Cooling can not meet the requirement of radiating, at this time need using sub-cooled pattern.Sub-cooled pattern is divided into I, II liang
Kind, sub-cooled modes I causes that hot-air enters from the bottom of power battery pack, is discharged from the top of power battery pack；Low temperature
Refrigerating mode II causes that hot-air enters from the top of power battery pack, is discharged from the bottom of power battery pack, so as to realize handing over
For formula sub-cooled.
When the temperature in temperature sensor detects power battery pack case reaches given threshold, battery management system is integrally
Machine 4 first starts sub-cooled modes I (as shown in Figure 5), now two position, three-way electromagnetic change valve A2 energizations action, the He of air pump 11
Cooler 15 starts, and outside normal temperature air is cooled into Cryogenic air through subcooler 15, and Cryogenic air is via air pump 11 pairs
Power battery pack carries out sub-cooled from top to bottom；
(can be by programming setting run time), battery management system one after sub-cooled modes I runs a period of time
Body machine 4 restarts sub-cooled mode II (as shown in Figure 6), and now two position, three-way electromagnetic change valve A2, two-position three-way electromagnetic are changed
Acted to valve B3, two position, three-way electromagnetic change valve C8, two position, three-way electromagnetic change valve D9 energizations, air pump 11 and cooler 15 are opened
Dynamic, outside normal temperature air is cooled into Cryogenic air through subcooler 15, and Cryogenic air is via air pump 11 to power battery pack
Sub-cooled is carried out from top to bottom；
Under the pattern, the temperature of electrokinetic cell alternately, is finally made using sub-cooled modes I and sub-cooled mode II
Degree is maintained in the reasonable scope, and preventing the excessive temperature differentials of import and export in temperature of powered cell overheat and power battery box influences
The using effect and service life of electrokinetic cell.
D heating modes：
In northern China, the temperature in winter can reach subzero twenty or thirty degree Celsius, and this prevents electrokinetic cell from normal
Work, the popularization of pure electric automobile is restricted.So electrokinetic cell needs the heating it is operated in the range of reasonable temperature, make
Electrokinetic cell can be in cold region normal work.
Heating mode of the invention belongs to interior circulation heating, and preferably inner air can be heated, and causes heat
Air circulation is used, and improves firing rate, reduces battery energy consumption in this respect.Heating mode is divided into I, II two kind, heated mould
Formula I causes that hot-air enters from the bottom of power battery pack, is discharged from the top of power battery pack；Heating mode II causes that heat is empty
Gas enters from the top of power battery pack, is discharged from the bottom of power battery pack, so as to realize alternation heating.
When the temperature in temperature sensor detects power battery pack case reaches given threshold, battery management system is integrally
Machine 4 first starts heating mode I (as shown in Figure 7), now two position, three-way electromagnetic change valve F16 and two-position two-way electromagnetic directional valve 17
Energization is acted, and forms closing inner circulating air loop, and air pump 11 and heater 10 start, and inner air starts the cycle over flowing,
Start simultaneously at and air is heated, power battery pack is heated from top to bottom；
(can be by programming setting run time), battery management system all-in-one 4 after heating mode I runs a period of time
Restart heating mode II (as shown in Figure 8), now two position, three-way electromagnetic change valve B3, two position, three-way electromagnetic change valve C8, two
Position three-way solenoid valve D9, two position, three-way electromagnetic change valve F16, the energization of two-position two-way electromagnetic directional valve 17 action, air pump
11 and heater 10 start, inner air starts the cycle over flowing, starts simultaneously at and air is heated, to power battery pack from upper
Heated under.
Under the pattern, alternately, finally maintain the temperature of electrokinetic cell using heating mode I and heating mode II
In zone of reasonableness, the excessive temperature differentials influence electrokinetic cell of import and export in temperature of powered cell supercooling and power battery box is prevented
Using effect and service life.
Claims (6)
1. a kind of power battery of pure electric automobile air hot pipe manages system, it is characterised in that including connection power battery pack case
Air distribution manifold, temperature sensor and battery management system all-in-one；
Air distribution manifold one end be sequentially connected heater, air pump, air accumulator, two position, three-way electromagnetic change valve E, cooler,
Two position, three-way electromagnetic change valve F and two-position two-way electromagnetic directional valve, wherein two position, three-way electromagnetic change valve E are also connected by pipeline
Two position, three-way electromagnetic change valve F；The air distribution manifold other end is sequentially connected two position, three-way electromagnetic change valve A and bi-bit bi-pass electricity
Magnetic reversal valve；
Temperature sensor be arranged in power battery pack case and with battery management system one mechatronics, battery management system one
Body machine also respectively with two position, three-way electromagnetic change valve A, heater, air pump, two position, three-way electromagnetic change valve E, cooler, two
Three-way solenoid valve F and two-position two-way electromagnetic directional valve are electrically connected.
2. power battery of pure electric automobile air hot pipe as claimed in claim 1 manages system, it is characterised in that described two two
Electric change valve is also connected with air cleaner A.
3. power battery of pure electric automobile air hot pipe as claimed in claim 1 manages system, it is characterised in that described two three
Electric change valve E is also connected with air cleaner B.
4. power battery of pure electric automobile air hot pipe as claimed in claim 1 manages system, it is characterised in that the air heat
Management system also includes two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D and two position, three-way electromagnetic change valve B；It is empty
Gas distribution circuit one end reconnects heater after connecting two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D,
The air distribution manifold other end reconnects two position, three-way electromagnetic change valve A after connecting two position, three-way electromagnetic change valve B, described
Two position, three-way electromagnetic change valve C also connects two position, three-way electromagnetic change valve A by pipeline, and two position, three-way electromagnetic change valve D also leads to
Cross pipeline connection two position, three-way electromagnetic change valve B；Two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D and two three
Electric change valve B also respectively with battery management system one mechatronics.
5. power battery of pure electric automobile air hot pipe as claimed in claim 1 manages system, it is characterised in that the power electric
The both sides up and down of pond group case are each provided with three interfaces, and air distribution manifold is connected by interface with power battery pack case.
6. a kind of power battery of pure electric automobile air hot pipe as described in claim any one of 1-5 manages the work side of system
Method, it is characterised in that comprise the following steps,
A gas storage circulation patterns：
When pure electric automobile starts to start, battery management system all-in-one starts gas storage circulation pattern, now two-position three way electricity
Magnetic reversal valve A energizations are acted, and air pump startup carries out air circulation；
B normal temperature refrigerating modes：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts normal temperature refrigerating mode
I, now two position, three-way electromagnetic change valve E energizations action, air pump startup realizes that extraneous air enters system, to electrokinetic cell
Group carries out normal temperature cooling from top to bottom；
After normal temperature refrigerating mode I runs a period of time, battery management system all-in-one restarts normal temperature refrigerating mode II, now
Two position, three-way electromagnetic change valve B, two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D, two-position three-way electromagnetic commutation
Valve E energizations are acted, and air pump startup realizes that extraneous air enters system, normal temperature cooling is carried out from top to bottom to power battery pack；
C sub-cooled patterns：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts sub-cooled pattern
I, now two position, three-way electromagnetic change valve A energizations action, air pump and cooler start, and outside normal temperature air is cold through subcooler
But Cryogenic air is turned into, Cryogenic air carries out sub-cooled from top to bottom to power battery pack；
After sub-cooled modes I runs a period of time, battery management system all-in-one restarts sub-cooled mode II, now
Two position, three-way electromagnetic change valve A, two position, three-way electromagnetic change valve B, two position, three-way electromagnetic change valve C, two-position three-way electromagnetic commutation
Valve D energizations are acted, and air pump and cooler start, and outside normal temperature air is cooled into Cryogenic air through subcooler, and low temperature is empty
Gas carries out sub-cooled from top to bottom to power battery pack；
D heating modes：
When the temperature in power battery pack case reaches given threshold, battery management system all-in-one first starts heating mode I, this
When two position, three-way electromagnetic change valve F and two-position two-way electromagnetic directional valve energization action, form closing inner circulating air loop, air
Pump and heater starting, inner air start the cycle over flowing, start simultaneously at and air is heated, to power battery pack from it is lower to
On heated；
After heating mode I runs a period of time, battery management system all-in-one restarts heating mode II, now two-position three way
Solenoid directional control valve B, two position, three-way electromagnetic change valve C, two position, three-way electromagnetic change valve D, two position, three-way electromagnetic change valve F, two
Two electric change valve energizations action, air pump and heater starting, inner air start the cycle over flowing, start simultaneously to air
Heated, power battery pack is heated from top to bottom.
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