CN110112510A - A kind of the lithium battery pack heat management system and method for separating dry space from moist space - Google Patents

A kind of the lithium battery pack heat management system and method for separating dry space from moist space Download PDF

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Publication number
CN110112510A
CN110112510A CN201910511703.3A CN201910511703A CN110112510A CN 110112510 A CN110112510 A CN 110112510A CN 201910511703 A CN201910511703 A CN 201910511703A CN 110112510 A CN110112510 A CN 110112510A
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Prior art keywords
battery
battery pack
heat
pipe array
liquid cooling
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CN201910511703.3A
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Chinese (zh)
Inventor
赵耀华
徐红霞
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Individual
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Individual
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Priority to CN201910511703.3A priority Critical patent/CN110112510A/en
Publication of CN110112510A publication Critical patent/CN110112510A/en
Priority to CN201911062866.4A priority patent/CN110707395A/en
Priority to CN201911063355.4A priority patent/CN110707396A/en
Priority to PCT/CN2019/117640 priority patent/WO2020248491A1/en
Priority to JP2021574177A priority patent/JP2022542762A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods 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
    • B60L58/26Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods 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
    • B60L58/27Methods 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 heating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/617Types of temperature control for achieving uniformity or desired distribution of temperature
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6552Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/657Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571Resistive heaters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A kind of the lithium battery pack heat management system and method for separating dry space from moist space, including battery pack, battery pack case, liquid cooling plate heat exchanger, battery or battery modules surface are bonded micro heat pipe array, and the extension of the micro heat pipe array is bonded with battery pack case;The outer surface of the liquid cooling plate heat exchanger fitting battery pack case, and the liquid cooling plate heat exchanger is connect with electric car refrigeration system.The present invention is effectively by the micro heat pipe array with efficient heat transfer in conjunction with liquid cooling mode, further pass through position and the Rankine-Hugoniot relations of micro heat pipe array and battery unit, so that one or two liquid cooling plate heat exchanger is arranged in the external of each battery pack, effectively the temperature conduction of inside battery can be gone out, prevent temperature excessively high, guarantee that the temperature of battery is uniform, radiating efficiency is high.

Description

A kind of the lithium battery pack heat management system and method for separating dry space from moist space
Technical field
The present invention relates to the battery pack thermal management algorithm and system of a kind of separating dry space from moist space, the battery pack for belonging to electric car dissipates Hot field.
Background technique
The heat management of lithium electricity packet is not only most important to battery life, also most important to the safety of battery.
Traditional battery pack thermal management algorithm --- air cooling technique is not able to satisfy wanting for the degree of protection of lithium battery pack not only It asks, and since the air cooling system inlet and outlet temperature difference is big, causes the biggish temperature difference between battery core and battery core, the injury to lithium battery Greatly, therefore at present it sees substantially without use value.
Traditional lithium battery pack thermal management algorithm with high-protection level generally uses liquid cooling mode, at present major part factory Single liquid cooling plate is only arranged in the bottom of battery modules in the liquid cooling bottom plate that family uses, and the single liquid in the bottom of battery modules Cold plate radiating mode will cause temperature difference very big up and down inside battery cell, right in fast charging and discharging and low-temperature prewarming The injury of battery is larger.Only tesla uses the full side surface liquid cooling mode of all batteries.But current liquid cooling medium is using antifreeze Liquid or refrigerant are directly cooling, and the latter is equivalent to direct-expansion type evaporator.Refrigerant direct-expansion type is cooling due to refrigerant Temperature is too low, will cause serious cold shock to battery and causes the great temperature difference of inside battery, causes to battery very big Injury does not have practical value substantially yet.Using it is more be anti-icing fluid, contain water in anti-icing fluid, for the liquid more than welding position Cold bottom plate, in use, welding position are easy breakage, and internal anti-icing fluid is caused to be revealed;Full side is used for tesla Face is to liquid cooling pipe, although soldering opening is located at battery pack to outside, once hitting, the liquid cooling tube damage between battery core can also be made It is revealed at anti-icing fluid, and soldering opening is distributed in full side, the probability that soldering opening is destroyed is big.No matter which kind of situation, leakage is prevented Freezing liquid can make battery pack short-circuit if contacting with the battery in battery pack, can all cause serious safety accident.
Summary of the invention
In order to solve the problems, such as that prior art security risk is big, radiating efficiency is low, it is big to injure to battery, the present invention proposes one The lithium battery pack heat management system and method for kind separating dry space from moist space.
Technical solution of the present invention:
A kind of lithium battery pack heat management system of separating dry space from moist space, it is characterised in that including battery pack, battery pack case and liquid Cold plate heat exchange of heat pipe,
It include one or more groups of batteries or battery modules in the battery pack, the battery or the fitting of battery modules surface are micro- Heat pipe array, it is evaporator section that the micro heat pipe array, which is bonded the battery or the part of battery modules, the micro heat pipe array Length is greater than the length of the battery or battery modules, and extension is bonded as condensation segment with battery pack case;
The battery pack case is around the battery pack and is enclosed construction, and the battery pack case is at least described in the correspondence It is heat conduction baffle at condensation segment;
The base plate seals of the liquid cooling plate heat exchanger, and pass through battery pack case and battery or the complete physics of battery modules Isolation;
At least corresponding outer surface for being bonded the heat conduction baffle of the liquid cooling plate heat exchanger, and the liquid cooling plate pipe exchanges heat Device is connect with electric car refrigeration system.
The preferred battery or the every row of battery modules include multiple groups, and are distributed for multiple rows of superposition, and every group of surface is pasted respectively Conjunction has the micro heat pipe array.
Battery described in further preferred every group or the double-sided surface of battery modules are bonded the micro heat pipe array, every side table Face is at least bonded the micro heat pipe array.
Vertical Square of the extension of each of further preferred micro heat pipe array to the micro heat pipe array plane To bending, vertical component is bonded with heat conduction baffle.
The substrate of the preferred liquid cooling plate heat exchanger is connect with the outer surface of the battery pack case by sealing ring Or welding, the battery pack case are IP67 rank.
The heat conductive pad of compressible deformation is provided between the preferred micro heat pipe array and the battery or battery modules Piece.
The substrate of the preferred liquid cooling plate heat exchanger has refrigerant inlet and refrigerant exit, respectively with electric car system Cooling system connection.
Further include preferably automatic control system and battery core temperature detecting unit, the automatic control system respectively with it is described Battery core temperature detecting unit is connected with the electric car refrigeration system.
The outer surface of the preferred micro heat pipe array is additionally provided with electric heating film.
A kind of lithium battery pack thermal management algorithm of separating dry space from moist space, it is characterised in that use heat management system above-mentioned, every group Battery or the evaporator section of the micro heat pipe array of battery modules surface fitting absorb the heat of each battery unit, conduct heat to Then extension is conducted heat to by heat conduction baffle and is bonded with the outer surface of heat conduction baffle, is with electric car refrigeration The liquid cooling plate heat exchanger that system is connected, when battery core temperature detected is higher than setting value, control system starts electronic automatically The refrigeration system of automobile drives the starting of liquid cooling plate heat exchanger, radiates to battery core;When battery core temperature is lower than setting value, The refrigeration system of electric car stops to liquid cooling plate heat exchanger cooling supply.
The electric heating film for being set to the outer surface of micro heat pipe array is preferably heated when battery temperature is lower than set temperature, And battery is heated by micro heat pipe array, cooling system is out of service at this time.
Advantageous effects of the invention:
A kind of battery pack heat management system of separating dry space from moist space of the invention pastes on the surface of battery (battery core) or battery modules Micro heat pipe array heat carrier is closed, heat is transferred to liquid cooling plate heat exchanger by heat conduction baffle, the latter combines electric car Refrigeration system constitutes liquid cooling system, and the temperature of battery core is managed using indirect liquid cooling mode.On the one hand, micro heat pipe array with every group The unilateral or bilateral surface of battery core is bonded, preferably double-sided surface, accordingly even when internally positioned battery core, temperature also can The heat conduction baffle for giving its fitting is effectively conducted at both ends by the micro heat pipe array being bonded therewith, and then is conducted to outside battery Portion, the liquid cooling plate heat exchanger then being connect by the refrigeration system with electric car, by inside battery by way of liquid cooling Temperature be dispersed into the environment except battery case, radiating efficiency is high.On the other hand, since micro heat pipe array is by metal material The flat heat carrier with porous structure formed is squeezed, inside has multiple mutual disconnected low-grade fevers being arranged side by side Pipe, and the hydraulic diameter of each micro heat pipe only has 1.0nm, even more small, tube wall bearing capacity is high, therefore leakage problem is almost It can ignore, and phase-change working substance will not cause battery even if being damaged leakage under extreme case for micro, non-conductive medium Damage;And heat conduction baffle is used as the protection shell of battery core simultaneously, and the substrate of liquid cooling plate heat exchanger is separated with battery pack, and By seal approach such as sealing ring or welding by the base plate seals of liquid cooling plate heat exchanger, realize and the intracorporal electricity of the shell Core is physically isolated completely, is effectively prevent the cooling medium in liquid cooling plate heat exchanger to leak in battery pack, is guaranteed battery pack Degree of protection reaches IP67 waterproof and dustproof grade.
The battery pack heat management system of a kind of separating dry space from moist space of the invention, when the temperature of internal battery core is higher than setting value When, such as 35 DEG C -42 DEG C, control system starts the refrigeration system of automobile automatically, and freeze and exchanges heat with liquid cooling plate heat exchanger, battery core The heat on surface by micro heat pipe array conduct to it is being arranged outside battery pack case, be connected with electric car refrigeration system Liquid cooling plate heat exchanger swaps out.
To sum up, the present invention further passes through effectively by the micro heat pipe array with efficient heat transfer in conjunction with liquid cooling mode The position and Rankine-Hugoniot relations of micro heat pipe array and battery unit, so that one or two liquid cooling plate is arranged in the external of each battery pack The temperature conduction of inside battery can effectively be gone out, prevent temperature excessively high by heat exchange of heat pipe, guarantee that the temperature of battery is uniform, be dissipated The thermal efficiency is high.
It is bonded after extension bending setting with heat conduction baffle, the condensation segment and heat conduction baffle of micro heat pipe array can be made Contact area it is bigger, increase heat transfer efficiency.
The heat-conducting pad has thermally conductive, electrical isolation and guarantees micro heat pipe array and the good accessible function of battery.
Detailed description of the invention
Fig. 1 is the decomposition texture schematic diagram of the embodiment of the lithium battery pack heat management system of separating dry space from moist space of the invention;
Fig. 2 is the schematic diagram after Fig. 1 assembling;
Fig. 3 is the partial sectional schematic view of battery unit one end.
1- battery pack case;2- liquid cooling plate heat exchanger;3- refrigerant inlet;4- refrigerant exit;5- battery unit;6- low-grade fever Pipe array, 61- extension, 7- heat-conducting pad, 8- electric heating film.
Specific embodiment
In order to be clearer to understand the contents of the present invention, will be described in detail by attached drawing 1-3 and specific embodiment.
As shown in Figure 1-3, a kind of battery pack heat management system of separating dry space from moist space of the present embodiment, including battery pack and attaching Liquid cooling plate heat exchanger 2 in the outside of battery pack case 1, the battery core in the battery pack are divided into four layers, and every layer longitudinally, laterally each Three.Wherein three 5 upper and lower surfaces of battery unit of every layer of transverse direction are bonded two groups of micro heat pipe arrays extended transversely 6 respectively. Micro heat pipe array 6 is that metal material is squeezed the flat heat carrier with porous structure formed, it is internal with it is multiple simultaneously The mutual disconnected micro heat pipe of arrangement, micro heat pipe enclosed inside have phase-change working substance.Micro heat pipe array 6 is that a kind of heat-transfer effect is strong The heat carrier of change.Wherein the micro heat pipe array is pasted onto the surface of battery unit 5 by heat conductive silica gel, is spaced apart from each other, It can also closely come together, the part that micro heat pipe array 6 has been bonded the battery unit 5 is evaporator section, the micro heat pipe battle array The part that the length of column 7 is greater than every group of battery core 7 forms extension 61, and extension 61 is used as condensation segment.It is arranged outside battery pack Battery pack case 1, the battery pack case 1 surround enclosed construction.The extension 61 of each micro heat pipe array 6 is to described The vertical direction of micro heat pipe array plane is bent, and is bonded on the inside of vertical component and battery pack case 1, wherein battery pack case 1 is right It answers at the condensation segment as heat conduction baffle.Liquid cooling plate heat exchanger 2 is at least bonded with the outer surface of heat conduction baffle, with the low-grade fever The elongated portion 61 of pipe array 6 carries out heat exchange, a side surface of substrate and battery pack case 1 by the heat conduction baffle 8 Outer surface welding, can also be connected by sealing ring, realize the complete object of liquid cooling plate heat exchanger 2 and internal battery unit 5 Reason isolation, guarantees that the degree of protection of battery pack reaches IP67.The liquid cooling plate heat exchanger 2 and the refrigeration system of electric car connect Connect the liquid cooling system for constituting battery.
As shown in Figure 1, the extension bending of the micro heat pipe array 6 of 5 upper side plane of battery unit described in being located at every group, position In the bending upward of underside plan, battery unit 5 is enclosed in inside by the two, to keep out the outside position of battery unit for being located at outside It moves.
The substrate of the liquid cooling plate heat exchanger 2 has refrigerant inlet 3 and refrigerant exit 4, with electric car refrigeration system Connection.
In addition, may be provided with leading for compressible deformation between the micro heat pipe array 6 and battery unit 5 as shown in Figure 3 Heat pad piece 7.
Battery unit 5, which can change into, to be combined the outside constituted by two or more soft encapsulation single batteries and has structural strength The flexible-packed battery mould group of shell.
A kind of battery pack heat management system of separating dry space from moist space of the present embodiment further includes automatic control system and battery core temperature Detection unit, automatic control system are connect with the battery core temperature detecting unit and the electric car refrigeration system respectively.
In use, the evaporator section in the micro heat pipe array 6 of the double-sided surface fitting of every group of battery unit 5 absorbs each battery The heat of unit 5, and the condensation segment that the extension conducted to the one end for being located at micro heat pipe array 6 is constituted, then condensation segment will Heat is conducted to the heat conduction baffle 8 being bonded therewith, heat conduction baffle 8 conduct heat to be bonded with the outer surface of heat conduction baffle 8, with The liquid cooling plate heat exchanger 2 that electric car refrigeration system is connected, when the temperature of detection unit battery unit 5 detected is higher than At 35 DEG C, control system starts the refrigeration system of electric car automatically, thus using liquid cooling plate heat exchanger 2, heat conduction baffle and Micro heat pipe array radiates to battery core, and the heat of battery core is swapped out;When the temperature of battery unit 5 is lower than 35 DEG C, electronic vapour The refrigeration system of vehicle stops freezing to the liquid cooling system.As shown in figure 3, the outer surface of the micro heat pipe array can also be arranged There is electric heating film 8, electric heating film 8 is heated when battery temperature is lower than set temperature, and battery is heated by micro heat pipe array, this When cooling system it is out of service.
The foregoing is merely the preferable specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, the anti-counterfeit plastic size that can be readily occurred in Variation or the size and number etc. of longitudinal tear line should be covered by the protection scope of the present invention.Therefore, of the invention Protection scope should be subject to the scope of protection of the claims.

Claims (10)

1. a kind of lithium battery pack heat management system of separating dry space from moist space, it is characterised in that including battery pack, battery pack case and liquid cooling Plate heat exchanger,
It include one or more groups of batteries or battery modules in the battery pack, the battery or battery modules surface are bonded micro heat pipe Array, it is evaporator section, the length of the micro heat pipe array that the micro heat pipe array, which is bonded the battery or the part of battery modules, Greater than the battery or the length of battery modules, and extension is bonded as condensation segment with battery pack case;
The battery pack case is around the battery pack and is enclosed construction, and the battery pack case is at least in the correspondence condensation It is heat conduction baffle at section;
The base plate seals of the liquid cooling plate heat exchanger, and by battery pack case and battery or the complete physics of battery modules every From;
At least corresponding outer surface for being bonded the heat conduction baffle of the liquid cooling plate heat exchanger, and the liquid cooling plate heat exchanger with The connection of electric car refrigeration system.
2. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that the battery Or the every row of battery modules includes multiple groups, and is distributed for multiple rows of superposition, every group of surface is fitted with the micro heat pipe array respectively.
3. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 2, it is characterised in that described in every group Battery or the double-sided surface of battery modules are bonded the micro heat pipe array, and every side surface is at least bonded the micro heat pipe battle array Column.
4. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that each described The extension of micro heat pipe array is bent to the vertical direction of the micro heat pipe array plane, and vertical component and heat conduction baffle paste It closes.
5. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that the liquid cooling The substrate of plate heat exchanger is connect or is welded by sealing ring with the outer surface of the battery pack case, the battery pack case For IP67 rank.
6. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that the low-grade fever The heat-conducting pad of compressible deformation is provided between pipe array and the battery or battery modules.
7. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that including automatic Control system and battery core temperature detecting unit, the automatic control system respectively with the battery core temperature detecting unit and the electricity The connection of electrical automobile refrigeration system.
8. a kind of lithium battery pack heat management system of separating dry space from moist space according to claim 1, it is characterised in that the low-grade fever The outer surface of pipe array is provided with electric heating film.
9. a kind of lithium battery pack thermal management algorithm of separating dry space from moist space, it is characterised in that using any heat of claim 1-8 The evaporator section of the micro heat pipe array of management system, every group of battery or the fitting of battery modules surface absorbs the heat of each battery unit Amount, conduct heat to extension, then conducted heat to by heat conduction baffle be bonded with the outer surface of heat conduction baffle, and The liquid cooling plate heat exchanger that electric car refrigeration system is connected, when battery core temperature detected is higher than setting value, control system The refrigeration system of the automatic starting electric car of system, drives the starting of liquid cooling plate heat exchanger, radiates to battery core;When battery core temperature When lower than setting value, the refrigeration system of electric car stops to liquid cooling plate heat exchanger cooling supply.
10. a kind of lithium battery pack thermal management algorithm of separating dry space from moist space according to claim 9, it is characterised in that the low-grade fever The outer surface of pipe array is provided with electric heating film, heats electric heating film when battery temperature is lower than set temperature, and pass through low-grade fever Pipe array applicator battery, cooling system is out of service at this time.
CN201910511703.3A 2019-06-13 2019-06-13 A kind of the lithium battery pack heat management system and method for separating dry space from moist space Pending CN110112510A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201910511703.3A CN110112510A (en) 2019-06-13 2019-06-13 A kind of the lithium battery pack heat management system and method for separating dry space from moist space
CN201911062866.4A CN110707395A (en) 2019-06-13 2019-11-04 Dry-wet separation vertical lithium battery pack liquid-cooled thermal management system and method
CN201911063355.4A CN110707396A (en) 2019-06-13 2019-11-04 Dry-wet separated lithium battery pack heat management system and method
PCT/CN2019/117640 WO2020248491A1 (en) 2019-06-13 2019-11-12 Thermal management system and method for lithium battery pack
JP2021574177A JP2022542762A (en) 2019-06-13 2019-11-12 Lithium battery pack thermal management system and method

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Application Number Priority Date Filing Date Title
CN201910511703.3A CN110112510A (en) 2019-06-13 2019-06-13 A kind of the lithium battery pack heat management system and method for separating dry space from moist space

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CN201910511703.3A Pending CN110112510A (en) 2019-06-13 2019-06-13 A kind of the lithium battery pack heat management system and method for separating dry space from moist space
CN201911062866.4A Pending CN110707395A (en) 2019-06-13 2019-11-04 Dry-wet separation vertical lithium battery pack liquid-cooled thermal management system and method
CN201911063355.4A Pending CN110707396A (en) 2019-06-13 2019-11-04 Dry-wet separated lithium battery pack heat management system and method

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CN201911063355.4A Pending CN110707396A (en) 2019-06-13 2019-11-04 Dry-wet separated lithium battery pack heat management system and method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110534830A (en) * 2019-09-30 2019-12-03 北京普莱德新能源电池科技有限公司 A kind of battery pack and automobile
CN111564675A (en) * 2020-04-15 2020-08-21 吉利汽车研究院(宁波)有限公司 Battery thermal management system based on heat pipe and liquid cooling device
WO2020248491A1 (en) * 2019-06-13 2020-12-17 赵耀华 Thermal management system and method for lithium battery pack

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