CN106876827A - A kind of cylindrical battery cooling device of application hot pipe technique - Google Patents

A kind of cylindrical battery cooling device of application hot pipe technique Download PDF

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Publication number
CN106876827A
CN106876827A CN201710174645.0A CN201710174645A CN106876827A CN 106876827 A CN106876827 A CN 106876827A CN 201710174645 A CN201710174645 A CN 201710174645A CN 106876827 A CN106876827 A CN 106876827A
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CN
China
Prior art keywords
heat
cold drawing
heat pipe
metallic plate
battery
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.)
Pending
Application number
CN201710174645.0A
Other languages
Chinese (zh)
Inventor
高天元
施骏业
王雨风
刘启媛
李万勇
陈江平
陈涛
陈海忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Zhongguancun Science And Technology Industrial Park Energy Saving Environmental Protection Research Co Ltd
Original Assignee
Jiangsu Zhongguancun Science And Technology Industrial Park Energy Saving Environmental Protection Research Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Zhongguancun Science And Technology Industrial Park Energy Saving Environmental Protection Research Co Ltd filed Critical Jiangsu Zhongguancun Science And Technology Industrial Park Energy Saving Environmental Protection Research Co Ltd
Priority to CN201710174645.0A priority Critical patent/CN106876827A/en
Publication of CN106876827A publication Critical patent/CN106876827A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01M10/64Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643Cylindrical cells
    • 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
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

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  • 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)

Abstract

The present invention discloses a kind of cylindrical battery cooling device of application hot pipe technique, including one piece of metallic plate of bending, and above with the arc-shaped concave coordinated with cylindrical battery, heat pipe is arranged on a metal plate.The evaporator section of heat pipe corresponding with the part that battery is contacted, the condensation segment of metallic plate heat pipe corresponding with the part that cold drawing is contacted on metallic plate.Groove on metallic plate and cold drawing coordinates, and cold drawing is inserted on the whole, and metallic plate is inserted into the runner of cold drawing.The heat that the absorbable battery of heat pipe evaporator section is produced, transfers heat to condensation segment and realizes heat exchange with cold drawing by medium, and the heat exchange of battery is realized on the whole.The present invention has heat exchange efficiency high, compact conformation, the advantages of being easily installed, can be used for the protection of battery, lifts battery efficiency.

Description

A kind of cylindrical battery cooling device of application hot pipe technique
Technical field
The present invention is a kind of cooling device for new energy car battery heat management system, is capable of achieving battery and cold drawing Between high efficient heat exchanging, protect cell safety, improve battery operated efficiency.
Background technology
In electric automobile, electrokinetic cell is the energy-storage travelling wave tube of core, and the operating efficiency of battery directly influences vehicle Distance travelled.Battery when it can export or be input into larger, can discharge the substantial amounts of heat in place, if too late in charge and discharge process When the temperature of battery is controlled, battery dieseling can be caused or even can be exploded.But traditional batteries of electric automobile In heat management system, the cooling system of indirect cooling-type is usually using single aluminium sheet as battery cooling apparatus, heat exchange efficiency It is not high, there is a problem of radiating in time.
Heat pipe be using medium hot junction evaporate after cold end condensation phase transition process (i.e. using liquid evaporation latent heat and The latent heat of condensation), heat is quickly conducted.Heat pipe one end is evaporation ends, and other end is condensation end, when heat pipe one end is heated, Liquid rapid vaporization in capillary, steam flows to other end under the power of thermal diffusion, and discharges heat in cold end condensation Amount, liquid flows back to evaporation ends along porous material by capillarity again, and so circulation is more than, and until heat pipe two ends, temperature is equal.This Planting circulation is quickly carried out, and heat can be conducted continuously to be come.
Traditional battery cooling apparatus are improved using hot pipe technique, the heat exchange efficiency of battery cooling apparatus can be improved, maintained Battery operating temperature protects cell safety in OK range, lifts battery operated efficiency.
The content of the invention
Present invention seek to address that the hypodynamic problem of common batteries cooling device heat-energy transducer, it is proposed that one kind application heat pipe skill The battery cooling apparatus scheme of art.
A kind of cylindrical battery cooling device of application hot pipe technique, it includes:Cold drawing, and it is curved on cold drawing Bent metallic plate, there is the arc-shaped concave coordinated with cylindrical battery side on the metallic plate, constitute and cylindrical battery contact surface; Heat pipe is arranged in metallic plate.
The heat pipe is divided into three parts:Evaporator section, adiabatic section, and condensation segment;Evaporator section is used to absorb heat, promotes heat Pipe interior media evaporates, and after gaseous medium flows through adiabatic section, in condensation segment condensation, is changed into liquid, discharges heat;Last condensation segment Liquid flows back to evaporator section by capillary, and so far inside heat pipe realizes circulation.The heat that battery is distributed enters after passing through metallic plate Heat pipe, is then absorbed by evaporator section.The condensation segment partial insertion cold drawing of heat pipe, contacts, heat with the coolant in cold drawing runner In release to the coolant in cold drawing runner, the heat from battery is discharged., to flatten heat pipe, its flow channel shape is by straight line for heat pipe Constituted with circular arc;Spacing is to flatten the 1/10-1/20 of heat pipe width between heat pipe runner wall and circular arc heat-transfer surface.
The metallic plate is aluminium sheet, and cold drawing is inserted in bottom by groove, for discharging heat pipe internal heating amount;Insert the heat of cold drawing Pipe portion is divided into the condensation segment of heat pipe;The top of heat pipe it is corresponding with battery be evaporator section.There is coolant to circulate in cold drawing runner, Cold drawing is maintained at lower temperature for a long time.
The metallic plate longitudinal cross-section is isosceles trapezoid, and isosceles trapezoid top margin it is long be 1.08- the ratio between with bottom side length 1.12;Some elastic sheet metals, at least one end of elastic sheet metal are laterally or longitudinally set on each arc-shaped concave of metallic plate It is fixedly connected with metal sheet surface, is fitted with cylindrical battery surface in the presence of elastic force.
The metallic plate includes one first metallic plate and two piece of second metallic plate, and the first metallic plate is fixed on two second metals In the middle of plate, wherein the first metallic plate thermal coefficient of expansion is far below the second metallic plate, pyroconductivity is provided with the second metallic plate high In the first metallic plate and the heat conducting film of the second metallic plate, being shaped as heat conducting film is trapezoidal, and width is gradually reduced from top to bottom, thick Degree is also gradually reduced;Second metallic plate thermal coefficient of expansion is higher than the first metallic plate.
Mounting means using the cylindrical battery cooling device of hot pipe technique is:Battery is initially mounted on cold drawing one and consolidates Positioning is put;Groove on metallic plate and cold drawing coordinates, overall insertion cold drawing so that cooling device connects with coolant in cold drawing runner Touch;Fixed position and grooved position that battery is installed so that battery side is brought into close contact with the arc-shaped concave on metallic plate.
The thickness of the aluminium sheet reduces as far as possible according to processing technology, on the one hand can save the system of single battery cooling device Make cost, on the one hand can reduce battery cooling apparatus and take volume so that the heat exchange list being made up of battery and battery cooling apparatus Meta structure is more compact.
The heat exchange unit quantity being made up of battery and one section of circular arc on the aluminium sheet is not limited, can according to actual needs Match somebody with somebody.
The end of the heat pipe coincides with the end of aluminium sheet, its closed at both ends.
The evaporation segment length of the heat pipe is corresponding with cell height, can fully absorb the heat of battery generation;Condensation segment Part with aluminium sheet insertion cold drawing is corresponding, can fully absorb the cold come by cold drawing transmission.Inside heat pipe evaporator section absorbs electricity Pond heat, liquid medium evaporation, flows to condensation segment;Medium is realized exchanging heat in condensation segment, and the liquid formed after medium condensation passes through Capillary flows back to evaporator section, and so far inside heat pipe forms a closed circulation, is capable of achieving high efficient heat exchanging.
The invention has the advantages that:
1st, the battery cooling apparatus heat exchange efficiency using hot pipe technique is high, it is possible to resolve common cooling device radiates not in time Problem.
2nd, battery cooling apparatus can and battery be fitted close, take up space small, battery can be made closely to arrange.
3rd, battery cooling apparatus simple structure, is easy to dismounting.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention, Objects and advantages will become more apparent upon:
The schematic diagram of the battery cooling apparatus that Fig. 1 is provided for the present invention;
The sectional view of the battery cooling apparatus heat pipe section that Fig. 2 is provided for the present invention;
The scheme of installation of the battery cooling apparatus that Fig. 3 is provided for the present invention;
The schematic diagram of the cold drawing that Fig. 4 is provided for the present invention.
In figure:1- heat pipes;2- circular arc contact surfaces;3- evaporator sections;4- adiabatic sections;5- condensation segments;6- cooling devices with it is cold But liquid contact surface;7- heat pipe runners;8- heat-transfer surfaces;9- metallic plates (aluminium sheet);10- batteries;11- cold drawings;12- cold drawing grooves;13- Cold drawing runner.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention Protection domain.
In battery (10) course of work, certain heat, heat can be produced to pass through metallic plate and battery contact surface (2), Into heat pipe evaporator section (3);The interior medium heat absorption evaporation of evaporator section (3), steam flows through adiabatic section under pressure promotion in evaporation cavity (4) after, into condensation segment (5);Condensation segment (5) correspond to the part of metallic plate insertion groove (12), with coolant directly contact; The coolant of circulation causes to be maintained at lower temperature outside heat pipe condenser section (5) in cold drawing runner (13);Steam in heat pipe After medium enters condensation segment (5), in condensation segment (5) gas-liquid interface condensing heat-exchange, heat has a common boundary via metallic plate and coolant Face (6) is transferred to coolant, is taken out of by coolant.
Battery (10) is firstly fixed on the ad-hoc location on cold drawing, installs metallic plate again afterwards:Metallic plate (9) can be aluminium Plate, inserts cold drawing, is engaged with cold drawing groove (12).The position that the position of groove (12) and battery are installed is engaged, and may be such that Battery is in close contact with aluminium sheet (9), while realizing high efficient heat exchanging, can the compact installation so that battery is tried one's best.
As the second embodiment of the application, in order to strengthen heat transfer and so that heat exchanger components and the electricity to heat pipe evaporator section Pond is more fitted, and is improved on the basis of a upper embodiment, and itself and upper embodiment difference are only described herein, identical Part is repeated no more.Metallic plate longitudinal cross-section is isosceles trapezoid, and isosceles trapezoid top margin it is long be 1.08- the ratio between with bottom side length 1.12;Some elastic sheet metals, at least one end and the metallic plate table of elastic sheet metal are set on each arc-shaped concave of metallic plate Face is fixedly connected, and is fitted with cylindrical battery surface in the presence of elastic force.
As the 3rd embodiment of the application, metallic plate is arranged to longitudinal cross-section falling of being gradually reduced of width from top to bottom It is trapezoidal, one end of a resilient blade, the other end connection of resilient blade are fixedly connected on the arc-shaped concave of aluminium sheet One inverted V-shaped elastic spring, elastic spring is contacted with arc-shaped concave bottom;Metallic plate arc-shaped concave and resilient blade surface apply One layer of heat conducting film is applied, being shaped as heat conducting film is trapezoidal, and width is gradually reduced from top to bottom, and thickness is also gradually reduced.When carrying The aluminium sheet of resilient blade is fitted into array, due to the effect of elastic force so that elastic sheet metal can be close to battery Surface, strengthens heat-transfer effect;Because the evaporator section of heat pipe is mainly used in absorbing heat, set on the surface with battery directly contact Pyroconductivity heat conducting film higher, by the area and thickness that control the heat conducting film so that heat concentrates the evaporator section to heat pipe Conducted, further improved heat exchange efficiency.
As the fourth embodiment of the application, metallic plate is arranged to bimetallic plates, it includes one first metallic plate and two The metallic plate of block second, the first metallic plate is fixed in the middle of two second metallic plates, wherein the first metallic plate thermal coefficient of expansion is far below Second metallic plate, is provided with pyroconductivity heat conducting film higher on the second metallic plate, being shaped as heat conducting film is trapezoidal, and on to Lower width is gradually reduced, and thickness is also gradually reduced;Second metallic plate thermal coefficient of expansion is higher than the first metallic plate, in the process of heat transfer In the second metallic plate thermal expansion can occur so that heat exchange surface is more fitted with battery surface.
Above-described embodiment is merely to illustrate technical solution of the present invention, but it is not for limiting the present invention.Any ability Field technique personnel without departing from the spirit and scope of the present invention, may be by the content of the disclosure above to proposed by the invention Scheme make possible variation and modification, therefore, it is every without departing from technology contents of the invention, according to technology reality of the invention Any simple modification, equivalent variation and modification that confrontation above example is made, belong to protection scope of the present invention.

Claims (9)

1. a kind of cylindrical battery cooling device of application hot pipe technique, it is characterised in that including:Cold drawing, and installed in cold Crooked metal sheet on plate, there is the arc-shaped concave coordinated with cylindrical battery side on the metallic plate, constitute and cylindrical type electricity Pond contact surface;Heat pipe is arranged in metallic plate.
2. the cylindrical battery cooling device of application hot pipe technique according to claim 1, it is characterised in that:The heat pipe It is divided into three parts:Evaporator section, adiabatic section, and condensation segment;Evaporator section is used to absorb heat, promotes inside heat pipe medium to evaporate, After gaseous medium flows through adiabatic section, in condensation segment condensation, it is changed into liquid, discharges heat;Last condensation segment liquid passes through capillary Evaporator section is flowed back to, so far inside heat pipe realizes circulation.
3. the cylindrical battery cooling device of application hot pipe technique according to claim 2, it is characterised in that:Battery is distributed Heat through heat pipe is entered after metallic plate, then absorbed by evaporator section.
4. the cylindrical battery cooling device of application hot pipe technique according to claim 2, it is characterised in that:The heat pipe Condensation segment partial insertion cold drawing, contacted with the coolant in cold drawing runner, heat is discharged in the coolant to cold drawing runner, Heat of the discharge from battery.
5. the cylindrical battery cooling device of application hot pipe technique according to claim 1, it is characterised in that:The heat pipe To flatten heat pipe, its flow channel shape is made up of straight line with circular arc;Spacing is pressure between heat pipe runner wall and circular arc heat-transfer surface The 1/10-1/20 of flat heat pipe width.
6. the cylindrical battery cooling device of application hot pipe technique according to claim 1, it is characterised in that:The metal Plate is aluminium sheet, and cold drawing is inserted in bottom by groove, for discharging heat pipe internal heating amount;The heat pipe section for inserting cold drawing is the cold of heat pipe Solidifying section;The top of heat pipe it is corresponding with battery be evaporator section.
7. the cylindrical battery cooling device of application hot pipe technique according to claim 6, it is characterised in that:Cold drawing runner Inside there is coolant to circulate, cold drawing is maintained at lower temperature for a long time.
8. the cylindrical battery cooling device of application hot pipe technique according to claim 1, it is characterised in that:The metal Plate longitudinal cross-section is isosceles trapezoid, and isosceles trapezoid top margin it is long be 1.08-1.12 the ratio between with bottom side length;Each arc of metallic plate Some elastic sheet metals are laterally or longitudinally set on shape concave surface, and at least one end of elastic sheet metal is fixed with metal sheet surface and connected Connect, fitted with cylindrical battery surface in the presence of elastic force.
9. the cylindrical battery cooling device of the application hot pipe technique as described in claim 1-8, it is characterised in that:Its installation side Formula is:Battery is initially mounted on a fixed position on cold drawing;Groove on metallic plate and cold drawing coordinates, overall insertion cold drawing, makes Cooling device is obtained to be contacted with coolant in cold drawing runner;Battery install fixed position and grooved position so that battery side with Arc-shaped concave on metallic plate is brought into close contact.
CN201710174645.0A 2017-03-22 2017-03-22 A kind of cylindrical battery cooling device of application hot pipe technique Pending CN106876827A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107346814A (en) * 2017-08-31 2017-11-14 广东工业大学 A kind of battery thermal management system
CN107732368A (en) * 2017-10-30 2018-02-23 清华大学 A kind of battery modules thermal runaway extension restraining device based on heat pipe
CN107833747A (en) * 2017-12-22 2018-03-23 武汉船用电力推进装置研究所(中国船舶重工集团公司第七二研究所) A kind of combined type super capacitor module radiator structure
CN107959090A (en) * 2017-12-13 2018-04-24 西安科技大学 A kind of power battery thermal management system
CN109066010A (en) * 2018-08-01 2018-12-21 常永利 A kind of battery thermal management system
CN111566839A (en) * 2018-01-31 2020-08-21 三洋电机株式会社 Battery pack
US11936023B2 (en) 2020-05-08 2024-03-19 Volvo Car Corporation Battery module

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080311468A1 (en) * 2007-06-18 2008-12-18 Weston Arthur Hermann Optimized cooling tube geometry for intimate thermal contact with cells
CN102438850A (en) * 2009-03-30 2012-05-02 贝洱两合公司 Device for thermal connection of an energy store
CN205039217U (en) * 2015-08-13 2016-02-17 惠州市亿能电子有限公司 Built -in heat pipe formula battery module
CN206742462U (en) * 2017-03-22 2017-12-12 江苏中关村科技产业园节能环保研究有限公司 A kind of cylindrical battery cooling device using hot pipe technique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080311468A1 (en) * 2007-06-18 2008-12-18 Weston Arthur Hermann Optimized cooling tube geometry for intimate thermal contact with cells
CN102438850A (en) * 2009-03-30 2012-05-02 贝洱两合公司 Device for thermal connection of an energy store
CN205039217U (en) * 2015-08-13 2016-02-17 惠州市亿能电子有限公司 Built -in heat pipe formula battery module
CN206742462U (en) * 2017-03-22 2017-12-12 江苏中关村科技产业园节能环保研究有限公司 A kind of cylindrical battery cooling device using hot pipe technique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107346814A (en) * 2017-08-31 2017-11-14 广东工业大学 A kind of battery thermal management system
CN107346814B (en) * 2017-08-31 2023-10-27 广东工业大学 Battery thermal management system
CN107732368A (en) * 2017-10-30 2018-02-23 清华大学 A kind of battery modules thermal runaway extension restraining device based on heat pipe
CN107732368B (en) * 2017-10-30 2024-01-26 清华大学 Heat pipe-based battery module thermal runaway expansion suppression device
CN107959090A (en) * 2017-12-13 2018-04-24 西安科技大学 A kind of power battery thermal management system
CN107833747A (en) * 2017-12-22 2018-03-23 武汉船用电力推进装置研究所(中国船舶重工集团公司第七二研究所) A kind of combined type super capacitor module radiator structure
CN111566839A (en) * 2018-01-31 2020-08-21 三洋电机株式会社 Battery pack
CN111566839B (en) * 2018-01-31 2022-10-28 三洋电机株式会社 Battery pack
CN109066010A (en) * 2018-08-01 2018-12-21 常永利 A kind of battery thermal management system
CN109066010B (en) * 2018-08-01 2019-05-07 常永利 A kind of battery thermal management system
US11936023B2 (en) 2020-05-08 2024-03-19 Volvo Car Corporation Battery module

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Application publication date: 20170620