CN108232082A - Extremely frigid zones new-energy automobile lithium battery heat management system - Google Patents

Extremely frigid zones new-energy automobile lithium battery heat management system Download PDF

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Publication number
CN108232082A
CN108232082A CN201810203739.0A CN201810203739A CN108232082A CN 108232082 A CN108232082 A CN 108232082A CN 201810203739 A CN201810203739 A CN 201810203739A CN 108232082 A CN108232082 A CN 108232082A
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CN
China
Prior art keywords
lithium battery
temperature
thermally conductive
conductive sheet
working solution
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.)
Withdrawn
Application number
CN201810203739.0A
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Chinese (zh)
Inventor
李绍松
李政
王国栋
张军
武广鑫
荣耀
刘秀峰
孙会双
张晋
任海波
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Changchun University of Technology
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Changchun University of Technology
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Filing date
Publication date
Application filed by Changchun University of Technology filed Critical Changchun University of Technology
Priority to CN201810203739.0A priority Critical patent/CN108232082A/en
Publication of CN108232082A publication Critical patent/CN108232082A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • 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
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses extremely frigid zones new-energy automobile lithium battery heat management system, including lithium battery group, temperature elevation system, control system and working solution.Using aluminium alloy as thermally conductive sheet, while the temperature of working solution is passed into thermally conductive sheet, lithium battery electric core is then passed to by thermally conductive sheet, so as to fulfill the management to lithium battery temperature as heat-conducting medium using working solution.Lithium battery is maintained by optimum working temperature by this set system always.In addition, when control system detects that motor speed is zero, and when lithium battery temperature is too low, ECU control temperature elevation system intermittent works enable automobile quickly to start.The configuration of the present invention is simple, it is securely and reliably, at low cost, it is highly practical, use of the electric vehicle in extremely frigid zones can be accelerated.

Description

Extremely frigid zones new-energy automobile lithium battery heat management system
Technical field
The present invention relates to a kind of battery thermal management system more particularly to extremely frigid zones new-energy automobile lithium battery heat management systems System.
Background technology
Lithium battery group is the critical component of electric vehicle as energy storage device main on electric vehicle, the direct shadow of performance Ring the performance of electric vehicle.At low ambient temperatures, electric vehicle continuation of the journey, which shortens, is primarily due to extremely low temperature lithiumation can be closed Object activity has an impact.And these compounds are at low temperatures, reduced activity, efficiency for charge-discharge declines, and makes electric vehicle lithium Battery durable ability declines, and causes vehicle start difficult, is short of power or even can not normally travel.By controlling working solution Temperature, and then be a kind of efficient mode to control the temperature of battery.
Chinese patent application No. is 201610884971.6 discloses a kind of battery pack thermal management system, by cooling line System and control piping system composition, internal battery pack cooling water pipe pass through water outlet and the first 3-position-3-way electromagnetism after battery pack The 2 ports connection of valve, 3 ports of the first 3-position-3-way solenoid valve are connected by external cooling water pipe with the water inlet end of radiator It connects, the water outlet of radiator is connect with 4 ports of the second three-position electromagnetic valve；5 ports of the first 3-position-3-way solenoid valve pass through outer Portion's cooling water pipe is connect after passing through car bottom with 6 ports of the second 3-position-3-way solenoid valve, and the 1 of the second 3-position-3-way solenoid valve Port is connected with the water inlet end of internal battery pack cooling water pipe, and the water inlet end of internal battery pack water pipe is provided with water pump, water pump It is equipped with water pump and controls relay, battery temperature sensor is arranged on the side of battery pack.By the switch for controlling solenoid valve Into the control of trip temperature.
The set heat management system has the following disadvantages：Pipe-line system is complicated, and processing is more difficult with manufacturing, and installation difficulty is big, Thermal management effect unobvious, cost is higher, and reliability is not strong, and practicability is not strong.
Invention content
The invention discloses a kind of simple in structure, number of parts is less, and processing is relatively simple with manufacturing, easy for installation, hot Management effect is apparent, at low cost, securely and reliably, highly practical electric automobile lithium battery heat management system.
The present invention realizes by the following technical solutions：
Extremely frigid zones new-energy automobile lithium battery heat management system, including lithium battery group, temperature elevation system, control system, work Make liquid.Lithium battery group is connect with temperature elevation system using pipeline, is flowed in the circuit that working solution is formed in lithium battery group with temperature elevation system It is dynamic；The lithium battery group is composed in parallel by lithium battery, is placed in incubator；The lithium battery is by battery core, thermally conductive sheet, outside battery Shell and temperature sensor composition；Battery core is cascaded, and the quantity of battery core is designed according to required voltage, thermally conductive sheet three Bread wraps lid battery core, and thermally conductive sheet uses albronze material, and thermally conductive sheet both sides resist battery case, heat is passed to rapidly Battery core；The entry/exit pipe joint of working solution is respectively distributed to the both sides of incubator, and there are certain height for the two interfaces Difference, input duct connect near from incubator distance from bottom, and outlet pipe incubator distance from bottom is remote, extend working solution in battery pack Flowing time, be heated evenly battery；The temperature elevation system is by liquid storing barrel, the pump housing, heater composition；Liquid storing barrel is adopted with the pump housing It is connected with pipeline, working solution can be driven to flow by the pump housing, the pump housing is connect with heater using pipeline, heater and battery pack Also it is connected using pipeline；The control system is made of ECU and motor speed sensor.
As an optimization, the present invention uses working solution by 60% ethylene glycol, 0.1% corrosion inhibiter, 39.9% distilled water Composition, and working solution is big with specific heat capacity, anti-corrosion, inhibition is not volatile, fire-retardant, and good fluidity, viscosity is small, good heat conductivity, Insulation, safety, it is environmentally protective the features such as, lithium battery is enable to be stably maintained in best operating temperature.
As an optimization, the entry/exit pipe joint of working solution of the present invention is respectively distributed to the left and right sides of incubator, and this two There are certain differences in height for a interface, and working solution import incubator bottom is near, and working solution exports remote from incubator bottom, makes work Liquid energy is enough fully to carry out heat exchange with each lithium battery, ensures that lithium battery interior temperature is consistent.
As an optimization, thermally conductive sheet of the present invention uses albronze material, and copper can be allowed quickly heat using albronze Amount is transmitted to aluminium, then heat is dispersed by aluminium, this not only compensates for the heat conduction of aluminium not as good as copper, and the heat dissipation for also compensating for copper is not so good as aluminium, Organically combine so as to achieve the effect that the rapid cooling that conducts heat soon.
As an optimization, incubator surfaces externally and internally of the present invention is coated with heat insulating coat, reduces heat dissipation.
As an optimization, ECU of the present invention can be according to the motor speed information and temperature that motor speed sensor detects The temperature information that sensor detects controls temperature elevation system intermittent work, battery pack temperature is maintained t2, and t2 in time< T1, to reduce the loss of the lithium battery energy when electric vehicle is in parking.
The beneficial effects of the invention are as follows：Extremely frigid zones new-energy automobile lithium battery heat management system proposed by the present invention, has Conducive to electric vehicle is used under cold condition, and improve the work condition environment of vehicle, make lithium battery high efficiency charge and discharge, improve The comprehensive performance of electric vehicle increases the course continuation mileage of electric vehicle.
Description of the drawings
Fig. 1 is the assembly figure of the present invention.
Fig. 2 is the structure chart of the lithium battery of the present invention.
Fig. 3 is the thermally conductive sheet outside drawing of the present invention.
Fig. 4 is the exemplary control strategy of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, embodiment of the present invention is described in detail：Extremely frigid zones new-energy automobile lithium battery Heat management system, including lithium battery group, temperature elevation system, control system, working solution.As shown in Figure 1, the lithium battery group is by lithium electricity Pond 1-1 parallel connections and incubator 1-2 compositions；The temperature elevation system is made of liquid storing barrel 2-1, pump housing 2-2, heater 2-3；The control System processed is made of motor speed sensor 3-1 and ECU 3-2；The liquid storing barrel 2-1 and heater of lithium battery group and temperature elevation system 2-3 is connected using pipeline, is flowed in the circuit that working solution is formed in lithium battery group with temperature elevation system；As shown in Fig. 2, the lithium electricity Pond 1-1 is made of battery core 1-1-1, thermally conductive sheet 1-1-2, battery case 1-1-3 and temperature sensor 1-1-4.Battery core 1-1-1 goes here and there It being linked togather, tri- bread of thermally conductive sheet 1-1-2 wraps lid battery core 1-1-1, thermally conductive sheet 1-1-2 both sides and resists li battery shell 1-1-3, There are working solutions, thermally conductive sheet 1-1-2 outside li battery shell 1-1-3 to absorb li battery shell 1-1-3 heats, pass through thermally conductive sheet 1-1- 2 transfer heat to battery core 1-1-1, and wherein thermally conductive sheet is as shown in Figure 3；The entry/exit pipe joint of working solution is respectively distributed to protect At left and right sides of incubator 1-2, input duct interface position is low, and outlet pipe position is high, extends stream of the working solution in lithium battery group The dynamic time, it is heated evenly lithium battery；Described liter of liquid storing barrel 2-1 is connect with pump housing 2-2 using pipeline, pump housing 2-2 and heater 2-3 is connected using pipeline, and heater 2-3 is connect with lithium battery group using pipeline；When ECU 3-2 detect lithium battery group temperature mistake When low, the pump housing 2-2 in control system control temperature elevation system starts to work, and pump housing 2-2 pumps working solution from liquid storing barrel 2-2 Going out, and pump to heater 2-3, heated device 2-3 heating, working solution flows into battery pack, transfers heat to thermally conductive sheet 1-1-2, Thermally conductive sheet transmits heat by being contacted with battery core 1-1-1.Refering to Fig. 4, lithium battery heat management system operation principle is：ECU 3-2 Can be according to the motor speed information that motor speed sensor 3-1 is detected, the lithium electricity detected according to temperature sensor 1-1-4 The temperature information of pond 1-1, control temperature elevation system work.If motor speed continues 5 minutes when being zero, and temperature sensor 1-1-4 Temperature when being always below t2, the ECU 3-2 control intermittent work of temperature elevation system makes working solution temperature maintain near t2. If motor speed is not zero, represent that automobile is in transport condition, when the temperature of temperature sensor 1-1-4 is less than t1, ECU 3-2 Temperature elevation system continuous firing is controlled, working solution is made to maintain temperature t1.
As an optimization, the entry/exit pipe joint of working solution of the present invention is respectively distributed to the both sides of incubator 1-2, and this two There are certain differences in height for a interface, and working solution import is near from incubator 1-2 bottoms, and working solution is exported from incubator 1-2 bottoms Far, extend flowing time of the working solution in battery pack, working solution enable fully to carry out heat exchange with each lithium battery group, Ensure that lithium battery is heated evenly.

Claims (1)

1. extremely frigid zones new-energy automobile lithium battery heat management system, including lithium battery group, temperature elevation system, control system, work Liquid.Lithium battery group is connect with temperature elevation system using pipeline, is flowed in the circuit that working solution is formed in lithium battery group with temperature elevation system； The lithium battery group is composed in parallel by lithium battery (1-1), is placed in incubator (1-2)；The lithium battery (1-1) is by battery core (1-1-1), thermally conductive sheet (1-1-2), battery case (1-1-3) and temperature sensor (1-1-4) composition.Battery core (1-1-1) is gone here and there It is linked togather, three bread of thermally conductive sheet (1-1-2) wraps lid battery core (1-1-1), and thermally conductive sheet (1-1-2) both sides resist battery-pack exterior casing (1-1-3)；The entry/exit pipe joint of working solution is respectively distributed to the left and right sides of incubator (1-2), and the two interfaces exist Certain difference in height；The temperature elevation system is by liquid storing barrel (2-1), the pump housing (2-2), heater (2-3) composition；Liquid storing barrel (2-1) It is connect with the pump housing (2-2) using pipeline, the pump housing (2-2) is connect with heater (2-3) using pipeline, heater (2-3) and lithium electricity Pond group is also connected using pipeline；The control system is made of motor speed sensor (3-1) and ECU (3-2).
CN201810203739.0A 2018-03-13 2018-03-13 Extremely frigid zones new-energy automobile lithium battery heat management system Withdrawn CN108232082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810203739.0A CN108232082A (en) 2018-03-13 2018-03-13 Extremely frigid zones new-energy automobile lithium battery heat management system

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Application Number Priority Date Filing Date Title
CN201810203739.0A CN108232082A (en) 2018-03-13 2018-03-13 Extremely frigid zones new-energy automobile lithium battery heat management system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109360916A (en) * 2018-11-29 2019-02-19 山东交通学院 A kind of cell apparatus with intelligent temperature control function
CN115084726A (en) * 2022-08-18 2022-09-20 靖江市永天金属制品有限公司 Dynamic temperature adjusting method for power battery and power battery

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103094640A (en) * 2013-01-29 2013-05-08 北京航空航天大学 Battery pack heat management device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103094640A (en) * 2013-01-29 2013-05-08 北京航空航天大学 Battery pack heat management device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109360916A (en) * 2018-11-29 2019-02-19 山东交通学院 A kind of cell apparatus with intelligent temperature control function
CN109360916B (en) * 2018-11-29 2024-02-02 山东交通学院 Battery device with intelligent temperature control function
CN115084726A (en) * 2022-08-18 2022-09-20 靖江市永天金属制品有限公司 Dynamic temperature adjusting method for power battery and power battery

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Application publication date: 20180629