CN107681223A - It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system - Google Patents
It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system Download PDFInfo
- Publication number
- CN107681223A CN107681223A CN201710809905.7A CN201710809905A CN107681223A CN 107681223 A CN107681223 A CN 107681223A CN 201710809905 A CN201710809905 A CN 201710809905A CN 107681223 A CN107681223 A CN 107681223A
- Authority
- CN
- China
- Prior art keywords
- heat
- heat pipe
- lithium battery
- heat exchanger
- phase change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 102
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 title claims abstract description 9
- 230000008859 change Effects 0.000 claims description 48
- 239000004519 grease Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 description 11
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012802 pre-warming Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
-
- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Automation & Control Theory (AREA)
Abstract
The lithium battery preheating of two phase flow power type separate heat pipe and cooling system are utilized the invention discloses a kind of, it is related to battery thermal management technical field, including lithium cells, heat-pipe working medium circulation line, central controller and self-loopa heat pipe magnetic valve, in addition to hot-cast socket unit and power unit.The invention has the advantages that improving security and the radiating effect that lithium battery uses, solve the problems, such as that lithium battery performance in cold operation is low, and then extend the service life of lithium battery.
Description
Technical field
The present invention relates to battery thermal management technical field, particularly a kind of lithium using two phase flow power type separate heat pipe
Battery preheats and cooling system.
Background technology
Lithium battery can produce fever phenomenon at work, and under normal operating conditions, its surface temperature is up to 50-60 DEG C；It is special
Not in heavy-current discharge and charging, fever phenomenon especially severe, or even thermal runaway phenomenon occurs.Heating will cause lithium battery
It can decline, life-span reduction, more serious will cause lithium battery damage even to be exploded.Existing cool-down method is mostly ventilation heat extraction,
The defects of heat transfer efficiency lowly, easily accumulates dust be present；The battery heat exchanger of rare monomer-type heat pipe composition, because of arrangement
Closely, it is not easy to overhaul, it is difficult to find the single heat pipe of failure.Meanwhile in cold district or winter starting motor, the high-power electricity of need
When power inputs, because lithium battery temperature is too low, discharge capability declines and can not meet momentary high power demand；Big electricity under low-temperature condition
During current charge, because the insertion ability of negative pole graphite declines, in fact it could happen that lithium battery thermal runaway even results in security incident.To lithium
The rare research of Preheating of battery.
The content of the invention
Lithium battery is safe to use, radiating effect is strong and energy-conservation the invention aims to solving, and devises a kind of utilization
The lithium battery preheating of two phase flow power type separate heat pipe and cooling system.Reach and keep clean in lithium cells, start electricity
Rapidly pre-warming lithium battery is to preference temperature before machine or charging, proper temperature and uniform temperature fields under normal operating conditions, improves electricity
Pond service life.
Realize above-mentioned purpose the technical scheme is that, a kind of lithium battery using two phase flow power type separate heat pipe
Preheating and cooling system, including lithium cells, heat-pipe working medium circulation line, central controller and self-loopa heat pipe magnetic valve,
Also include hot-cast socket unit and power unit, the lithium cells, hot-cast socket unit and self-loopa heat pipe magnetic valve/power list
Member forms loop by heat-pipe working medium circulation line；The lithium cells are micro- including lithium battery box temperature sensor, inside
Passage heat exchange of heat pipe and lithium battery module, heat-conducting silicone grease is filled between internal micro channel heat heat exchange of heat pipe and lithium battery module；
The hot-cast socket unit includes interior heat exchanger channels and outer heat exchanger channels, and the interior heat exchanger channels include the phase-transition heat-storage being sequentially connected
Device heat pipe electromagnetic valve I, phase change heat accumulator and phase change heat accumulator heat pipe electromagnetic valve II, and it is provided with phase change heat accumulator in phase change heat accumulator
Temperature sensor and phase change heat accumulator internal exchanger, the outer heat exchanger channels include the external heat exchanger heat pipe electricity being sequentially connected
Magnet valve I, external heat exchanger and external heat exchanger heat pipe electromagnetic valve II；The power unit includes four-way reversing valve and solution pump,
The power unit includes four-way reversing valve and solution pump, and two paths of four-way reversing valve are connected with solution pump, in addition two paths
It is connected respectively with lithium cells and hot-cast socket unit；The central controller respectively with lithium battery box temperature sensor, outer
Portion's heat exchanger heat pipe electromagnetic valve I, external heat exchanger heat pipe electromagnetic valve II, phase change heat accumulator heat pipe electromagnetic valve I, phase change heat accumulator heat
Pipe electromagnetic valve II, phase change heat accumulator temperature sensor I, self-loopa heat pipe magnetic valve, four-way reversing valve, solution pump and it is arranged on
External temperature sensor in air is connected by control and power output line.
Preferably, the outer heat exchanger channels also include external heat exchanger blower fan, and external heat exchanger blower fan is arranged on outside and changed
The outside of hot device, and external heat exchanger blower fan is connected with central controller by control and power output line.
Preferably, the top of the lithium cells, which is set, is vented dust-proof valve.
Preferably, the system of the internal micro channel heat heat exchange of heat pipe, phase change heat accumulator internal exchanger and external heat exchanger
It is aluminium alloy as material.
A kind of lithium battery using two phase flow power type separate heat pipe made using technical scheme is preheated
And cooling system, its advantage are to improve security and the radiating effect that lithium battery uses, and solve lithium battery in low temperature
The problem of performance is low in operation, and then the service life of lithium battery is extended, it is embodied in：
1st, the two phase flow heat pipe of mass-and heat-transfer is carried out with gas-liquid two-phase fluidised form, energy transmission density is big, required driving force, changes
Hot area, heat exchanger volume and connecting line diameter significantly reduce；
2nd, separate heat pipe separate condenser and evaporator, remotely transferring and heat transfer direction-agile is realized, is permitted
Perhaps each part dispersed placement of hot-pipe system, space utilization is flexible, and heat transfer commutation can preheat lithium battery；
3rd, to consume a small amount of electric energy as cost, the power-actuated dynamic heat pipe of solution pump can overcome long distance delivery hot
On-way resistance caused by plumber's matter, the problem of avoiding driving force deficiency under the small temperature difference, similar gravity type monomer heat pipe is avoided to exist
Condensation segment can only be in the installation confinement problems of evaporator section eminence；
4th, the heat exchanger that multiple conventional monomer heat pipe combinations form overhauls, change monomer heat pipe is extremely difficult, and two phase flow
Power type separate-type heat pipe system has the ripe portions such as condenser, evaporator and the connecting line of similar direct-expansion type refrigeration system
Part, it is easy to maintenance.
Brief description of the drawings
Fig. 1 is the heat dissipation of lithium battery flow chart using two phase flow power type separate heat pipe；
Fig. 2 is lithium cells internal cross section structure chart；
Fig. 3 is to preheat flow chart using the lithium battery of two phase flow power type separate heat pipe.
More than in each figure, 1, lithium cells；2nd, heat-pipe working medium circulation line；31st, phase change heat accumulator heat pipe electromagnetic valve I；
32nd, phase change heat accumulator heat pipe electromagnetic valve II；41st, external heat exchanger heat pipe electromagnetic valve I；42nd, external heat exchanger heat pipe electromagnetic valve II；
5th, phase change heat accumulator；6th, external heat exchanger blower fan；7th, external heat exchanger；8th, phase change heat accumulator temperature sensor；9th, phase-transition heat-storage
Device internal exchanger；10th, lithium battery box temperature sensor；11st, self-loopa heat pipe magnetic valve；12nd, four-way reversing valve；13rd, it is molten
Liquid pump；14th, control and power output line；15th, central controller；16th, internal micro channel heat heat exchange of heat pipe；17th, it is vented dust-proof valve；
18th, lithium battery module；19th, charging and discharging lithium battery cable；20th, lithium battery box cover；21st, lithium battery box body case；22nd, heat pipe
Working medium circulation pipe interface；23rd, heat-conducting silicone grease；24th, external temperature sensor.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to embodiment, structure, feature and its effect according to the present invention, describe in detail as follows：
The application is related to a kind of lithium battery preheating using two phase flow power type separate heat pipe and cooling system, is divided into lithium
Battery radiating mode and lithium battery preheating mode.The system uses the separate type heat with separate condenser and evaporator
Pipe, remotely transferring and heat transfer direction-agile are realized, each part dispersed placement of hot-pipe system, space utilization is flexible, heat transfer commutation
Lithium battery can be preheated；It can be overcome caused by long distance delivery heat-pipe working medium using the power-actuated dynamic heat pipe of solution pump
On-way resistance, the problem of avoiding driving force deficiency under the small temperature difference；The Optimal design and calculation of heat exchanging device pipeline and working medium charging amount,
Realize that working medium two-phase flow regime is conducted heat, the big purpose of energy transmission density.
Embodiment 1
Such as Fig. 1, shown in Fig. 2 (by taking tabular lithium battery module as an example), heat dissipation of lithium battery pattern includes lithium cells 1, heat
Plumber's matter circulation line 2, hot-cast socket unit, power unit, self-loopa heat pipe magnetic valve 11, control and power output line 14 and in
Controller 15 is entreated, wherein, lithium cells 1, hot-cast socket unit and self-loopa heat pipe magnetic valve 11 pass through heat-pipe working medium circulation pipe
Road 2 forms self circulation heat exchange loop；Lithium cells 1, hot-cast socket unit and power unit pass through the shape of heat-pipe working medium circulation line 2
Into drive cycle heat exchange loop.
Lithium cells 1 carry out sealed damp-proof dustproof design, including lithium battery box temperature sensor 10, internal microchannel
Heat exchange of heat pipe 16, the dust-proof valve 17 of exhaust, lithium battery module 18, charging and discharging lithium battery cable 19, lithium battery box cover 20, lithium
Battery case shell 21, heat-pipe working medium circulation line interface 22 and heat-conducting silicone grease 23, wherein, lithium battery module 18 produces gas,
Discharged by the opening in lithium cells 1, set in opening and be vented dust-proof valve 17, dust-proof effect can be played；It is internal micro-
Filled between passage heat exchange of heat pipe 16 and lithium battery module 18 using heat-conducting silicone grease 23, heat-conducting silicone grease 23 has electric insulation and led
The characteristics of hot property is excellent, non-newtonian flow body characteristicses are presented during high temperature, therefore the gap between solid wall surface can be eliminated, reduce shake
Dynamic and thermal conduction resistance, prevent electric leakage accident, improve the uniformity of the temperature inside the box field.In addition, micro channel heat inside lithium cells
Heat exchange of heat pipe 16, phase change heat accumulator internal exchanger and external heat exchanger 7 reduce flowing using optimization designs such as parallel multiplexes
Resistance, the working medium for forming two-phase flow regime, are prepared using the material that aluminium alloy etc. is frivolous, heat conduction is good.
Hot-cast socket unit includes interior heat exchanger channels and outer heat exchanger channels, wherein, interior heat exchanger channels include the phase being sequentially connected
Become storage heater heat pipe electromagnetic valve I 31, phase change heat accumulator 5 and phase change heat accumulator heat pipe electromagnetic valve II 32, and in phase change heat accumulator 5
Provided with phase change heat accumulator temperature sensor 8；It is external heat exchanger heat pipe electromagnetic valve I 41 that outer heat exchanger channels include being sequentially connected, outer
Portion's heat exchanger 7 and external heat exchanger heat pipe electromagnetic valve II 42, because the system is using single transfer passage bi-directional path, therefore
Both ends are respectively provided with magnetic valve, are easy to control.In addition, outer heat exchanger channels also include the outside for being arranged on the outside of external heat exchanger 7
Heat exchanger blower 6, for improving radiating efficiency.
Power unit includes four-way reversing valve 12 and solution pump 13, and two paths and the solution pump 13 of four-way reversing valve 12 connect
Connect, two paths are connected with lithium cells and hot-cast socket unit respectively in addition, and solution pump 13 gives the work for flowing through four-way reversing valve 12
Matter provides power, strengthens laser propagation effect, therefore power unit plays a part of providing working medium circulation power and extends heat transfer distances, with
It is cost to consume a small amount of electric energy, and the power-actuated dynamic heat pipe of solution pump can be overcome caused by long distance delivery heat-pipe working medium
On-way resistance, the problem of avoiding driving force deficiency under the small temperature difference, avoid condensation segment existing for similar gravity type monomer heat pipe can only
In the installation confinement problems of evaporator section eminence.
Central controller 15 respectively with lithium battery box temperature sensor 10, external heat exchanger heat pipe electromagnetic valve I 41, outer
It is portion's heat exchanger heat pipe electromagnetic valve II 42, phase change heat accumulator heat pipe electromagnetic valve I 31, phase change heat accumulator heat pipe electromagnetic valve II 32, outer
Portion's Heat exchanger blower 6, phase change heat accumulator temperature sensor 8, self-loopa heat pipe magnetic valve 11, four-way reversing valve 12, solution pump 13
And aerial external temperature sensor 24 is set to be connected by control and power output line 14；The work of central controller 15
With being signal by collecting, handling each sensor, the parts such as each magnetic valve, solution pump are controlled, it is right under different occasions
The heat management of energy-conservation is optimized in lithium battery box body.
In the present embodiment, according to the programmed instruction of optimization, lithium battery box temperature biography is collected and handled to central controller 15
Temperature detected by sensor 10 and external temperature sensor 24, when casing internal-external temperature difference is larger, control and power can be passed through
Output line 14 closes external heat exchanger blower fan 6, is even switched off solution pump 13 and opens self-loopa heat pipe magnetic valve 11 to start heat
Pipe self-loopa pattern, improve energy-saving effect；Detect that the temperature of phase change heat accumulator 5 reaches in phase change heat accumulator temperature sensor 8 to set
During the definite value upper limit, phase change heat accumulator heat pipe magnetic valve 3 is closed, heat is all dissipated to external environment condition by external heat exchanger 7.Specific fortune
Row process is as follows：
In lithium battery electric discharge work, heat-pipe working medium absorbs heat in the inside micro channel heat heat exchange of heat pipe 16 of lithium cells 1
Evaporation is through working medium circulation pipeline 2 in the form of two phase flow, and into hot-cast socket unit exothermic condensation, i.e., interior heat exchanger channels and outer heat exchange are logical
Road exothermic condensation, pressure is improved subsequently into the solution pump 13 of power unit, (solid line is working medium stream to four-way reversing valve 12 in Fig. 1
Dynamic direction) flow direction is determined, the inside micro channel heat heat exchange of heat pipe 16 for returning to lithium cells 1 absorbs heat evaporation again, so
Circulation, the internal heat of lithium cells 1 is transported to phase change heat accumulator 5, and the waste heat of external environment discharge in time.Value
It must illustrate, the heat being stored in phase change heat accumulator 5 can be otherwise utilized for delivery to other positions, as heating uses.
Embodiment 2
As different from Example 1, the present embodiment is lithium battery preheating mode, as shown in figure 3, it includes lithium cells
1st, interior heat exchanger channels, power unit, control and the power output line 14 in heat-pipe working medium circulation line 2, hot-cast socket unit and in
Controller 15 is entreated, i.e., the pattern does not include the outer heat exchanger channels in hot-cast socket unit, and self-loopa heat pipe magnetic valve 11 is closed.It is dynamic
Power unit is switched to preheating mode, changes flow direction of the working medium between lithium cells 1 and hot-cast socket unit.
In the present embodiment, according to the programmed instruction of optimization, central controller 15 is in the institute of lithium battery box temperature sensor 10
When the internal temperature of lithium cells 1 detected reaches preheating setting value, heat pipe system is closed by control and power output line 14
System, and allow to enable lithium battery group；Reached in the internal temperature of lithium cells 1 detected by lithium battery box temperature sensor 10
During to the setting value upper limit, heat pipe heat radiation pattern is opened.Carrying out practically process is as follows：
Before lithium battery group low-temperature starting is used or before low temperature charging, the startup hot-pipe system preheating mode of central controller 15, two
The heat-pipe working medium of phase manifold state in the inside micro channel heat heat exchange of heat pipe 16 of lithium cells 1 exothermic condensation through working medium circulation pipe
Road 2, the solution pump 13 into power unit improve pressure, and four-way reversing valve 12 (dotted line is Working fluid flow direction in Fig. 3) determines
Flow direction, absorb heat and evaporate subsequently into the interior heat exchanger channels in hot-cast socket unit, return to the inside microchannel of lithium cells 1
The exothermic condensation again of heat exchange of heat pipe 16, so circulation, are transported to lithium cells 1 by the heat of phase change heat accumulator 5, reach pre-
The purpose of hot lithium battery.
According to the scheme described by embodiment 1 and embodiment 2, central controller is according to interior pre-set programs and phase change heat accumulator
The parameter of temperature sensor, lithium battery box temperature sensor and external temperature sensor, under different occasions, by system
Middle different component output different switching value instructions, the heat management to optimizing energy-conservation in lithium cells, concrete operations side
Method is as follows：
1st, during lithium battery group normal work, phase change heat accumulator heat pipe magnetic valve is closed, hot-pipe system passes through solution pump and electricity
Pond case internal-external temperature difference driving working medium carries out two phase flow motion, by heat through external heat exchanger and the externally discharged environment of blower fan, dimension
The temperature inside the box is held in suitable interval；
2nd, during lithium battery group normal work, phase change heat accumulator heat pipe magnetic valve is closed, if ambient temperature is relatively low, is stopped
Only fan operation, the maintenance the temperature inside the box more saved is in suitable interval；
3rd, during lithium battery group normal work, phase change heat accumulator heat pipe magnetic valve, if ambient temperature is very low, battery are closed
Case internal-external temperature difference is very big, then stops solution pump and fan operation, self-loopa heat pipe magnetic valve is opened, into heat pipe self-loopa mould
Formula, maintenance the temperature inside the box of maximum energy-conservation is in suitable interval；
4th, during lithium battery group normal work, if phase change heat accumulator temperature is less than setting value lower limit, by opening phase-transition heat-storage
Device heat pipe magnetic valve simultaneously closes external heat exchanger heat pipe magnetic valve, preferentially to phase change heat accumulator heat supply, realizes that used heat storage is sharp again
With；If phase change heat accumulator temperature reaches the setting value upper limit, two groups of magnetic valve states are exchanged, and carry out External Environment heat extraction；
5th, when lithium battery group temperature is relatively low, before motor or charging is started, four-way reversing valve switches to preheating mode, opens
Phase change heat accumulator heat pipe magnetic valve simultaneously closes external heat exchanger heat pipe magnetic valve and self-loopa heat pipe magnetic valve, and hot-pipe system passes through
Temperature difference driving working medium carries out two phase flow motion between phase change heat accumulator in solution pump and battery case, the heat that phase change heat accumulator is stored
Amount is discharged into battery case, and the rapid battery pack that heats realizes that micro- energy consumption preheats to suitable temperature section using used heat.
In parts used by the application, compared to the convective heat transfer resistance of gas and solid wall surface, biphase gas and liquid flow
Smaller with the convective heat transfer resistance of solid wall surface, heat transfer efficiency is high, it also avoid the drawbacks of gas transport easily accumulates dust；Two-phase
Heat pipe is flowed, energy transmission density is big, and required driving force, heat exchange area, heat exchanger volume and connecting line diameter significantly reduce；Separately
Outside, the heat exchanger that multiple conventional monomer heat pipe combinations form overhauls, change monomer heat pipe is extremely difficult, and two phase flow power type point
From the ripe parts such as condenser, evaporator and the connecting line that formula hot-pipe system has similar direct-expansion type refrigeration system, maintenance side
Just.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This, without departing from the scope of the invention, various improvement can be carried out to it and can be replaced wherein with equivalent
Part, as long as structural hazard is not present, the every technical characteristic being previously mentioned in each embodiment can combine in any way
Get up, and any reference in claim should not be considered as to the involved claim of limitation, no matter come from which point
See, embodiment all should be regarded as exemplary, and be nonrestrictive.Therefore, it is any to fall within the scope of the appended claims
All technical schemes it is within the scope of the present invention.
Claims (4)
1. a kind of lithium battery using two phase flow power type separate heat pipe preheats and cooling system, including lithium cells (1),
Heat-pipe working medium circulation line (2), central controller (15) and self-loopa heat pipe magnetic valve (11), it is characterised in that also include heat
Converting unit and power unit, the lithium cells (1), hot-cast socket unit and self-loopa heat pipe magnetic valve (11)/power list
Member forms loop by heat-pipe working medium circulation line (2)；
The lithium cells (1) include lithium battery box temperature sensor (10), internal micro channel heat heat exchange of heat pipe (16) and
Lithium battery module (18), heat-conducting silicone grease (23) is filled between internal micro channel heat heat exchange of heat pipe (16) and lithium battery module (18)；
The hot-cast socket unit includes interior heat exchanger channels and outer heat exchanger channels, and the interior heat exchanger channels include the phase transformation being sequentially connected
Storage heater heat pipe electromagnetic valve I (31), phase change heat accumulator (5) and phase change heat accumulator heat pipe electromagnetic valve II (32), and phase change heat accumulator
(5) phase change heat accumulator temperature sensor (8) and phase change heat accumulator internal exchanger (9) are provided with, the outer heat exchanger channels include
External heat exchanger heat pipe electromagnetic valve I (41), external heat exchanger (7) and the external heat exchanger heat pipe electromagnetic valve II being sequentially connected
(42)；
The power unit includes four-way reversing valve (12) and solution pump (13), two paths and solution pump of four-way reversing valve (12)
(13) connect, two paths are connected with lithium cells (1) and hot-cast socket unit respectively in addition；
The central controller (15) respectively with lithium battery box temperature sensor (10), external heat exchanger heat pipe electromagnetic valve I
(41), external heat exchanger heat pipe electromagnetic valve II (42), phase change heat accumulator heat pipe electromagnetic valve I (31), phase change heat accumulator heat pipe electromagnetism
Valve II (32), phase change heat accumulator temperature sensor (8), self-loopa heat pipe magnetic valve (11), four-way reversing valve (12), solution pump
(13) and aerial external temperature sensor (24) is set to be connected by control and power output line (14).
2. a kind of lithium battery using two phase flow power type separate heat pipe according to claim 1 preheats and radiating is
System, it is characterised in that the outer heat exchanger channels also include external heat exchanger blower fan (6), and external heat exchanger blower fan (6) is arranged on outer
The outside of portion's heat exchanger (7), and external heat exchanger blower fan (6) passes through control and power output line (14) with central controller (15)
Connection.
3. a kind of lithium battery using two phase flow power type separate heat pipe according to claim 1 preheats and radiating is
System, it is characterised in that the top of the lithium cells (1), which is set, is vented dust-proof valve (17).
4. a kind of lithium battery using two phase flow power type separate heat pipe according to claim 1 preheats and radiating is
System, it is characterised in that internal micro channel heat heat exchange of heat pipe (16), phase change heat accumulator internal exchanger (9) and the external heat-exchanging
The making material of device (7) is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809905.7A CN107681223B (en) | 2017-09-08 | 2017-09-08 | Lithium battery preheating and heat dissipation system utilizing two-phase flow power type separated heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710809905.7A CN107681223B (en) | 2017-09-08 | 2017-09-08 | Lithium battery preheating and heat dissipation system utilizing two-phase flow power type separated heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107681223A true CN107681223A (en) | 2018-02-09 |
| CN107681223B CN107681223B (en) | 2023-12-01 |
Family
ID=61134732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710809905.7A Active CN107681223B (en) | 2017-09-08 | 2017-09-08 | Lithium battery preheating and heat dissipation system utilizing two-phase flow power type separated heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107681223B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378548A (en) * | 2018-11-01 | 2019-02-22 | 王慧敏 | Method for power battery pack hold over system |
| CN110190296A (en) * | 2019-05-16 | 2019-08-30 | 苏州纳尔森能源科技有限公司 | Battery thermal management system and its control method |
| CN111193081A (en) * | 2018-11-14 | 2020-05-22 | 奥迪股份公司 | Back-up device and method for supporting at least one of two interfaces with a medium arranged between the interfaces |
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014034061A1 (en) * | 2012-08-28 | 2014-03-06 | 株式会社デンソー | Vehicle heat management system |
| JP2014226962A (en) * | 2013-05-20 | 2014-12-08 | パナソニック株式会社 | Vehicle heat management system |
| DE202014010473U1 (en) * | 2014-01-15 | 2015-09-17 | Hans Kunstwadl | Passive temperature control of batteries through two-phase heat transfer and storage |
| CN106935937A (en) * | 2017-03-09 | 2017-07-07 | 宁波诺丁汉大学 | A kind of electric automobile lithium battery heat management system based on heat pipe |
| CN106985657A (en) * | 2017-03-26 | 2017-07-28 | 安徽安凯汽车股份有限公司 | New energy pure electric motor coach power cell motor combines heat management system and thermal management algorithm |
| CN207265193U (en) * | 2017-09-08 | 2018-04-20 | 青岛大学 | It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system |
-
2017
- 2017-09-08 CN CN201710809905.7A patent/CN107681223B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014034061A1 (en) * | 2012-08-28 | 2014-03-06 | 株式会社デンソー | Vehicle heat management system |
| JP2014226962A (en) * | 2013-05-20 | 2014-12-08 | パナソニック株式会社 | Vehicle heat management system |
| DE202014010473U1 (en) * | 2014-01-15 | 2015-09-17 | Hans Kunstwadl | Passive temperature control of batteries through two-phase heat transfer and storage |
| CN106935937A (en) * | 2017-03-09 | 2017-07-07 | 宁波诺丁汉大学 | A kind of electric automobile lithium battery heat management system based on heat pipe |
| CN106985657A (en) * | 2017-03-26 | 2017-07-28 | 安徽安凯汽车股份有限公司 | New energy pure electric motor coach power cell motor combines heat management system and thermal management algorithm |
| CN207265193U (en) * | 2017-09-08 | 2018-04-20 | 青岛大学 | It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378548A (en) * | 2018-11-01 | 2019-02-22 | 王慧敏 | Method for power battery pack hold over system |
| CN111193081A (en) * | 2018-11-14 | 2020-05-22 | 奥迪股份公司 | Back-up device and method for supporting at least one of two interfaces with a medium arranged between the interfaces |
| CN111193081B (en) * | 2018-11-14 | 2023-08-25 | 奥迪股份公司 | A back-up device and a method for supporting at least one of two interfaces with a medium therebetween |
| CN110190296A (en) * | 2019-05-16 | 2019-08-30 | 苏州纳尔森能源科技有限公司 | Battery thermal management system and its control method |
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107681223B (en) | 2023-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106450572B (en) | A kind of system and method based on lithium ion battery component zone heat management | |
| CN109860950B (en) | Combined type electric automobile power battery heat management device | |
| CN205194809U (en) | Electric automobile power battery's thermal management system and electric automobile | |
| Ma et al. | Experimental study on the performance of vehicle integrated thermal management system for pure electric vehicles | |
| CN205039216U (en) | Thermal management system of cuboid group battery | |
| CN105375084B (en) | Battery heat removal system and batteries of electric automobile radiation management system | |
| CN107681223A (en) | It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system | |
| US10648743B2 (en) | Systems with multi-circuited, phase-change composite heat exchangers | |
| CN101275782B (en) | Heat pump air conditioning water supply machine | |
| CN108621832A (en) | A kind of electric vehicle integrated heat management system based on phase-change material | |
| CN205141099U (en) | Group battery and batteries of electric vehicle thermal management system | |
| CN109585729A (en) | A kind of controlling temp type power battery pack | |
| CN106960988B (en) | Power lithium battery thermal management system | |
| CN110071348A (en) | Based on the cooling power battery thermal management system of composite phase-change material and its application | |
| CN113451682B (en) | Battery pack based on phase change heat transfer and natural cooling | |
| CN207265193U (en) | It is a kind of to utilize the lithium battery preheating of two phase flow power type separate heat pipe and cooling system | |
| CN100494862C (en) | Heat pipe accumulator | |
| GB2532485A (en) | An apparatus for storage of sensible heat | |
| US20230272927A1 (en) | Systems with multi-circuited, phase-change composite heat exchangers | |
| CN114243165B (en) | Lithium ion battery thermal management system | |
| EP3546854B1 (en) | Defrosting a heat pump system with waste heat | |
| CN104088490B (en) | A kind of communication base station | |
| CN215597747U (en) | Electrochemical heat exchange device and air conditioner indoor unit | |
| CN216924603U (en) | Heat storage air conditioning system | |
| CN218525632U (en) | Battery pack temperature control system and large-capacity battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |