CN107681226A - Lithium battery group temperature control unit, temperature control pipeline and heat management system - Google Patents
Lithium battery group temperature control unit, temperature control pipeline and heat management system Download PDFInfo
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- CN107681226A CN107681226A CN201710905466.XA CN201710905466A CN107681226A CN 107681226 A CN107681226 A CN 107681226A CN 201710905466 A CN201710905466 A CN 201710905466A CN 107681226 A CN107681226 A CN 107681226A
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- lithium battery
- temperature control
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- temperature
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 238000007726 management method Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 23
- -1 PTC heating plates Substances 0.000 abstract 1
- 239000000306 component Substances 0.000 description 9
- 239000002826 coolant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010622 cold drawing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000000476 thermogenic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material 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
- H01M10/61—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
- H01M10/63—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
- H01M10/655—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
- H01M10/656—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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of lithium battery group temperature control unit, temperature control pipeline and heat management system, wherein temperature control unit, for multi-layer piping, inner water tube, heat-conducting filler, PTC heating plates, glue filler, package casing are set gradually from inside to outside, and PTC thermal control plates are set between PTC heating plates and package casing.Heat management system includes at least two liquid cooling plate being oppositely arranged, and water inlet and delivery port are set respectively on each liquid cooling plate；Inlet channel connects with outlet conduit, is installed in parallel in the connecting portion for the liquid cooling plate being oppositely arranged, and is connected with the water inlet on cold liquid plate and delivery port, and install lithium battery group temperature control unit.The present invention can effectively control the temperature of temperature in lithium battery group, the service life realized the uniformity of the battery cell temperature of diverse location in lithium battery group, extend lithium battery group.
Description
Technical field
The invention belongs to New-energy electric vehicle dynamic lithium battery technical field, lithium battery group temperature is more particularly related to
Control unit, temperature control pipeline and heat management system.
Background technology
The continuous growth of auto output so that needed on the earth in face of increasingly severe air pollution and energy resource consumption
Problem.How to go to mitigate the destruction to environment such as motor vehicle exhaust emission, whole world automobile industry has all paid close attention to new energy
The direction of source electric car, and research institution and business research center corresponding to foundation one after another.And in New-energy electric vehicle side
Xiang Zhong, dynamic lithium battery, which is also just complied with, becomes one of core component of research to stand in the breach.
During the use of electric automobile of power lithium battery cell system is loaded, since it is desired that the big electricity in frequently travelling
Situations such as large current charge for banish electricity, transient energy recovery being needed because of emergency brake, is used because of reusing, electricity
The battery core temperature in pond can constantly raise in above-mentioned operating mode and produce temperature difference, unsafe condition be present, further influence electricity
The risk in pond life-span etc..In order to reduce these risks, current research institution both domestic and external, generally made using air-cooled and liquid cooling system
The temperature of the battery core in power lithium battery cell system is controlled for the type of cooling.
In current air cooling way, can not solve the function of heating at low temperature, so as to which lithium battery system can not be ensured
Normal use of the system in the cold environment less than -20 °C；And air-cooled mode, it can not ensure in the battery bag of same case not
With the good uniformity of the temperature difference of the battery core of position.
In the current cold mode of liquid, can solve the function of heating at low temperature, but because heating liquid passes through
Different pipelines, or because the temperature difference that series connection is brought, also bring along the temperature of the battery core of diverse location in the battery bag of same case
The otherness for having more than 8 DEG C of difference, with the accumulation using process, this otherness can also become larger.
The content of the invention
, goal of the invention.
The first object of the present invention is to propose a kind of lithium battery group temperature control unit, with solve in lithium battery group temperature without
The technical problem that method effectively controls.
The second object of the present invention is to propose a kind of temperature control pipeline, to solve the battery of diverse location in lithium battery group
The inconsistent technical problem of cell temperature.
The third object of the present invention is to propose a kind of heat management system, to solve lithium battery group because making under cold environment
With the technical problem for causing short life.
, the technical solution adopted in the present invention.
A kind of lithium battery group temperature control unit, it is multi-layer piping, sets gradually inner water tube, conductive filler from inside to outside
Thing, PTC heating plates, glue filler, package casing, PTC thermal control plates are set between PTC heating plates and package casing.
In further embodiment, described PTC heating plates form polygonal shape tubes by multiple heating plates and wrapped up
Inner water tube, every piece of heating plate are located at the corresponding tangent position of pipeline, and PTC thermal control plates are bonded with one of heating plate and set
Put.The heating plate of the present invention sets the area for both having expanded heating and will not expand overall volume
In further embodiment, described PTC thermal control plates are controlled by BMS battery management systems.
A kind of temperature control pipeline of lithium battery group proposed by the present invention, wherein described temperature control unit, internal water
Pipe sets straight tube and the circular helix tube of external helicoid, two sections of temperature control pipelines joining place using rubber linking tube company
Connect, the helix tube and straight tube of two sections of temperature control pipelines switch inside rubber linking tube, are connected by wherein one section of straight tube another
One section of helix tube, another section of straight tube is connected by wherein one section of helix tube.To solve the function of straight tube and helix tube switching.
In further embodiment, described rubber linking tube connection, described rubber linking tube includes rubber
Pipe clamp, caulking gum pipe.Wherein rubber pipe clamp is used for two fixed segment pipes, and realizes that the inside of helix tube and straight tube is cut
Change.
A kind of heat management system of lithium battery group proposed by the present invention, at least two liquid cooling plate being oppositely arranged, often
Water inlet and delivery port are set respectively on individual liquid cooling plate；Inlet channel connects with outlet conduit, is installed in parallel in what is be oppositely arranged
The connecting portion of liquid cooling plate, it is connected with the water inlet on cold liquid plate and delivery port, and lithium battery group temperature control unit is installed.
In further embodiment, described lithium battery group temperature control unit is arranged on inlet channel, institute
Temperature in use control pipeline on the inlet channel and outlet conduit stated.
In further embodiment, described liquid cooling plate is double-deck liquid cooling plate, between it is relatively solid by fixed plate
It is fixed.
In further embodiment, described double-deck coldplate is connected by Y-piece, and two ports of Y-piece connect
The water inlet or delivery port of liquid cooling plate are connect, another port connects inlet channel or outlet conduit accordingly.
In further embodiment, described inlet channel and outlet conduit are fixed by intake-outlet connector
Connection.
, the present invention caused by technique effect.
（1）The lithium battery group temperature control unit of the present invention, the temperature of temperature in lithium battery group can be effectively controlled, improved
Service life.Suitable for the temperature of the temperature adjusting liquid in regulation liquid injecting pipeline injection different masses cold drawing, the warp from liquid reserve tank output is avoided
Temperature adjusting liquid after heater heating is in the process of circulation along liquid injecting pipeline because the loss of heat causes to inject different cold drawings
The difference of the temperature of interior temperature adjusting liquid.
（2）The temperature control pipeline of the present invention, it is possible to achieve the one of the battery cell temperature of diverse location in lithium battery group
Cause property is good.
（3）A kind of heat management system of the present invention, it is possible to achieve extend the service life of lithium battery group.When battery unit
By injecting cooling effect of the coolant realization to battery unit when temperature is too high, the overheat of battery unit is avoided to use.Again may be used
To realize the thermogenic action to battery unit when the temperature of battery unit is too high, avoid the supercooling of battery unit from using, play
Pre-heat effect.Cooling and the double action of heating so that lithium battery group uses in the state of preferably.
Brief description of the drawings
Fig. 1 is the structure chart of the heating control unit of the present invention.
Fig. 2 is the temperature control pipe connecting structure schematic diagram of the present invention.
The temperature control pipeline that Fig. 3 is the present invention connects internal structure schematic diagram.
Fig. 4 is the temperature control pipeline inside coil road and straight tube schematic diagram of the present invention.
Fig. 5 is the heat management system schematic diagram of the present invention.
Fig. 6 is another heat management system schematic diagram of the present invention.
Fig. 7 is the double-deck liquid cooling plate structural representation of the present invention.
Fig. 8 is multiple battery bag stack combinations schematic diagrames of the present invention.
Fig. 9 is the building-block of logic of the heat management system of the lithium battery group of the present invention.
Description of reference numerals：Liquid cooling plate 1, inlet channel 2, intake-outlet connector 3, PTC heating systems 4, rubber pipe clamp
5, caulking gum pipe 6, Y-piece 7, battery module 8, water inlet 9, delivery port 10, rubber linking tube 11, PTC thermal control plates 12,
Heat-conducting filler 13, inner water tube 14, PTC heating plates 15, glue filler 16, package casing 17, outlet conduit 18.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
Embodiment 1
As shown in figure 1, a kind of lithium battery group temperature control unit proposed by the present invention, is multi-layer piping, sets successively from inside to outside
Put inner water tube 14, heat-conducting filler 13, PTC heating plates 15, glue filler 16, package casing 17, PTC heating plates 15 and envelope
PTC thermal control plates 12 are set between casing 17.There is constant temperature warming, energy-conservation, peace using lithium battery group temperature control unit
Full performance is good, the advantage of service life length.
Described PTC heating plates 15 form polygonal shape tubes parcel inner water tube 14, every piece of heating plate by multiple heating plates
Positioned at the corresponding tangent position of pipeline, PTC thermal control plates 12 are bonded setting with one of heating plate.Used in the present embodiment
Hexagon added hot channel, expanding the area of heating and overall volume will not be expanded.As shown in figure 9, the PTC in the present embodiment adds
Thermal control plate 12 is controlled by BMS battery management systems.BMS is used to gather each battery unit 8 in battery module in real time
Temperature, and suitable for being connected with vehicle-mounted control component.BMS is preset with battery thermal management strategy, can be according to the temperature gathered in real time
Data, the judgement of Current Temperatures situation is made according to default battery thermal management strategy, and sent accordingly to vehicle-mounted control component
Signal.
Embodiment 2
As in Figure 2-4, the present invention proposes a kind of temperature control pipeline of lithium battery group, using described temperature control unit,
The wherein circular helix tube of the setting straight tube of inner water tube 14 and external helicoid, rubber is used in the joining place of two sections of temperature control pipelines
Gemel connection pipe 11 connects, and the helix tube and straight tube of two sections of temperature control pipelines switch inside rubber linking tube, by wherein one section
Straight tube connect another section of helix tube, another section of straight tube is connected by wherein one section of helix tube.Described rubber linking tube
Connection, described rubber linking tube include rubber pipe clamp 5, caulking gum pipe 6.Wherein rubber pipe clamp 5 is used for two sections of fixed pipes
Road, and realize the inside switching of helix tube and straight tube.
When being radiated, coolant enters from the straight tube of left pipeline, is reached via helical pipe rubber linking tube right
In square tube road helix tube.The characteristics of this construction is：In radiating, liquid can further radiate in pipeline enclosure flowing through row, by
In the characteristic of helical pipe, coolant can preferably be radiated, so that it is guaranteed that entering next battery module liquid cooling plate
When, there can be preferably cooling capacity, so as to greatly promote the cooling performance of system.
In heating, coolant enters from the helix tube of left pipeline, and right is reached via helical pipe rubber linking tube
In pipeline straight tube.The characteristics of this construction is：For liquid when by PTC heating systems, due to being in helical pipe, heating surface is more
Greatly, heated time is longer, so as to reach more preferable heating effect；And when by transmission pipeline between coldplate, by straight tube
The characteristics of transmission, influences, and faster, the thermal losses of liquid is smaller for transmission speed, greatly improves the heating properties of system.
The present invention is merged both good heat treatment strategies so that the system takes into account various situations, is body
System is integrated, reaches target and provides more high-quality processing scheme, greatly improves the feasibility of system.
Coolant delivery pipe of the present invention is the multi-layer piping structure being made up of helix tube, straight tube, outsourcing pipeline in itself.Spiral
Manage and be used for system radiating, coolant is first injected into straight tube from control system during radiating, due to being straight tube, coolant can be quick
In the helix tube for reaching rear（Lift transmission speed）, coolant is at the same time injected into overclad tubes, with the cold pipe of similar snake
Working method carries out fast cooling to system.By the cold pipe characteristic of snake, we understand so greatly enhance system radiating ability, can
To reduce in system each battery bag temperature rapidly so as to reach the demand of fast cooling.Straight tube heats for system, during heating by
The first injection heating liquid into helix tube of control system, due to being helix tube, when by PTC heating systems, can fully increase
Glass tube heating surface area, heating liquid is set quickly to heat, then reaching rear by connection rubber tube conveys in straight tube, passes through straight tube
Liquid after heating is delivered to rapidly around heating bag, system is heated.This jacket heating system, it can be carried in heating
The system efficiency of heating surface is risen, reaches the design requirement of efficient energy-saving；In conveying, liquid is transferred in straight tube rapidly, is carried out quick defeated
Send, so as to greatly reduce heat waste of the heating liquid in course of conveying, reach the design object that the energy makes full use of.
The whole series add（Dissipate）Hot systems integrate, and can effectively reduce space station use, reach highly integrated design mesh
Mark.This other jacket heating system is combined by multistage heating pipeline, is attached, can be fitted by multiple rubber hose therebetween
The battery pack arrangement mode that form is different is answered, while is also more convenient for dismantling, change and recombinating.
This set adds（Dissipate）Hot systems are application and the system of adapting to property, helix tube in order to reach preferably radiating or
Heating effect and design, itself is more very thin, and working environment there are certain requirements.And the integrated rear required stream of the system
Amount, flow velocity and the impact of performance are that this set adds（Dissipate）The suitable environment of hot systems work, so its ability in the environment of the system
Its performance advantage can be given full play to, if being placed into other large-scale heating systems, then very thin pipeline is inherently doomed
It does not reach optimum performance requirement, if expanding pipeline by force on the contrary not as conventional adds（Dissipate）The excellent result of hot systems.
Embodiment 3
A kind of as shown in Figure 5 heat management system of lithium battery group proposed by the present invention, including at least two be oppositely arranged
Liquid cooling plate（1）, each liquid cooling plate（1）It is upper that water inlet is set respectively（9）And delivery port（10）, liquid cooling plate（1）Using aluminium sheet, in aluminium
Groove is opened up on plate, and embedment is suitable to the copper pipe of temperature adjusting liquid injection in groove, aluminium and copper have high thermal conductivity.
Inlet channel（2）And outlet conduit（18）Connection, is installed in parallel in the liquid cooling plate being oppositely arranged（1）Connecting portion,
With the water inlet on cold liquid plate（9）And delivery port（10）It is connected, and lithium battery group temperature control unit is installed.In order to realize liquid
Cold drawing（1）And battery module（8）Between insulation, heat conductive insulating plate is provided between liquid cooling plate 1 and battery module 8.The heat conduction is exhausted
Listrium is optional to be made of conductivity of heat silicon rubber.
Embodiment 4
Further, on the basis of embodiment 3, as shown in fig. 6, described lithium battery group temperature control unit is arranged on into water
Pipeline（2）On, described inlet channel（2）And outlet conduit（18）The temperature control pipeline of embodiment 2 described in upper use.
As shown in fig. 7, described liquid cooling plate（1）For double-deck liquid cooling plate, between be relatively fixed by fixed plate.
As shown in fig. 6-7, described double-deck coldplate passes through Y-piece（7）Connection, Y-piece（7）Two port connection liquid are cold
Plate（1）Water inlet or delivery port, another port connects inlet channel accordingly（2）Or outlet conduit（18）.
As shown in fig. 6, described inlet channel（2）And outlet conduit（18）Pass through intake-outlet connector（3）It is fixed to connect
Connect.
In order that our integrated system can be more highly integrated, more narrow and small environment is can be suitably used for, such as Fig. 8 institutes
Show, battery bag triplets are put into cooling box, cooling tube and coldplate are covered after the completion of laying, form a battery mould
Block.Then each two battery module is fixed back-to-back, forms a battery pack, according to real needs, we can be as far as possible
More laying battery packs, the constraint of surrounding environment will not be limited to as conventional system（High system flexibility）, battery pack
It is attached between group with conveyance conduit, it is due to conveyance conduit and customized for this structure, adapt to various forms of
Battery pack distribution situation, be not in situation as pseudo- flexiblesystem so system flexibility can be improved really.
The integration mode selection of the present invention is considered as what the system specially designed, is directed to middle-size and small-size or stenotic type space.
Battery pack volume after compression is integrated, make its arrangement can be more flexible, plus flexible high special pipeline, this nested structure is gathered around
There are the high flexibility not available for other heating systems, the property such as high-adaptability and low energy consumption, high efficiency, high resource utilization
Energy.
The heat management system course of work of lithium battery group is as follows：
The BMS battery management systems for being preset with battery thermal management strategy gather the temperature of each battery module 8 in real time, in real time collection
After temperature data, the judgement of Current Temperatures situation is made according to default battery thermal management strategy.
When the temperature data of collection is higher than the value that BMS battery management systems are set according to thermal management policy, BMS cell tubes
Reason system sends cooling signal to vehicle-mounted control component, and vehicle-mounted control component receives the cooling that BMS battery management systems are sent
After signal, the sucking pump of temperature-regulating module is opened in control, and temperature adjusting liquid is passed through liquid injecting pipeline 5 after importing and exporting connector, then is reached every
Block liquid cooling plate 1, using the heat exchange of liquid cooling plate 1 and battery module 8, and in liquid cooling plate 1 temperature adjusting liquid flowing, battery can be taken away
The heat of battery cell 1 is simultaneously transmitted on liquid cooling plate 1 by the heat of monomer 1, to take away the heat of battery cell 1, so as to ensure
The timely transfer of the heat of whole battery module and ensure whole battery module and be in preferable operating temperature.
When the temperature data of collection is higher than the value that BMS battery management systems are set according to thermal management policy, such as winter
The New-energy electric vehicle getting up early environment temperature that cold district uses may be less than minus 20 degrees, or New-energy electric vehicle
When just starting to charge up, temperature may also be less than minus 20 degrees.At this moment the temperature number that BMS battery management systems collect in real time
During according to that can be less than value that BMS battery management systems are set according to thermal management policy, BMS battery management systems can be to vehicle-mounted control group
Part sends heat temperature raising signal, vehicle-mounted after vehicle-mounted control component receives the heat temperature raising signal that BMS battery management systems are sent
The heater work of the corresponding configuration of liquid reserve tank is opened in control assembly control, to be heated to temperature adjusting liquid, treats the temperature adjustment of liquid reserve tank
When the temperature of liquid reaches required temperature, sucking pump is opened, temperature adjusting liquid is passed through liquid injecting pipeline after importing and exporting connector, then reaches every
Block liquid cooling plate 1, using the heat exchange of liquid cooling plate 1 and battery module, and in liquid cooling plate 1 temperature adjusting liquid flowing, to battery module 8
Heated, ensure whole battery module so as to ensure the rise of the temperature of whole battery module and be in preferably work temperature
Degree.
In above process, because the temperature adjusting liquid after the heated device heating that is exported from liquid reserve tank is along liquid injecting pipeline 5
The process of circulation in can have the loss of heat, difference can be caused by losing after the temperature adjusting liquid after heat injects different liquid cooling plates 1
Liquid cooling plate 1 is inconsistent for the temperature rise effect of respective battery modules 8, therefore after sucking pump is opened, vehicle-mounted control component can intelligence
The ptc heater that liquid injecting pipeline corresponding to the liquid cooling plate 1 of ground control different masses is set starts heating, for adjusting liquid injecting pipeline note
Enter the temperature of the temperature adjusting liquid in different masses liquid cooling plate 1, improve the temperature adjustment to the battery module 8 of diverse location in lithium battery group
Uniformity.
Specifically, in the control process of above-mentioned vehicle-mounted control component control ptc heater, when BMS battery management systems
Discrepancy delta of the mean temperature of the whole unit of the battery module 8 collected with the mean temperature of the battery core of whole battery module
When V reaches 3 DEG C and the above, vehicle-mounted control component will control open the present invention to should battery module 8 liquid cooling plate 1
Ptc heater 2 starts heating；When the battery module 8 that BMS battery management systems collect whole unit mean temperature with whole
When the discrepancy delta V of the mean temperature of the battery core of individual battery module is less than or equal to 1 DEG C, vehicle-mounted control component will control closing
The present invention to should battery module 8 liquid cooling plate 1 ptc heater stop heating.With specific reference to as shown in the table：
| Sequence number | Ptc heater | Decision condition |
| 1 | Open | ΔV≥3°C |
| 2 | Close | ΔV≤1°C |
Δ V=V1-V2 in upper table；
V1 is the mean temperature after the cumulative total value of the temperature of the battery core of battery module divided by total temperature spot number；
In the cumulative total value divided by unit of the battery core temperature for the battery module 8 that V2 heats for needs after total temperature spot number
Mean temperature.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
In the description of the invention, it is to be understood that the term of indicating position or position relationship is based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure
Must be fully horizontal, but can be slightly tilted.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Claims (10)
- A kind of 1. lithium battery group temperature control unit, it is characterised in that：For multi-layer piping, inner water tube is set gradually from inside to outside （14）, heat-conducting filler（13）, PTC heating plates（15）, glue filler（16）, package casing（17）, PTC heating plates（15）With Package casing（17）Between set PTC thermal control plates（12）.
- 2. lithium battery group temperature control unit according to claim 1, it is characterised in that：Described PTC heating plates（15）Polygonal shape tubes parcel inner water tube is formed by multiple heating plates（14）, every piece of heating plate Positioned at the corresponding tangent position of pipeline, PTC thermal control plates（12）Setting is bonded with one of heating plate.
- 3. lithium battery group temperature control unit according to claim 1, it is characterised in that：Described PTC thermal control plates （12）Controlled by BMS battery management systems.
- A kind of 4. temperature control pipeline of lithium battery group, it is characterised in that the temperature control unit described in usage right requirement 1, its Middle inner water tube（14）Straight tube and the circular helix tube of external helicoid are set, rubber is used in the joining place of two sections of temperature control pipelines Gemel connection pipe（11）Connection, the helix tube and straight tube of two sections of temperature control pipelines switch inside rubber linking tube, by wherein one The straight tube of section connects another section of helix tube, and another section of straight tube is connected by wherein one section of helix tube.
- 5. the temperature control pipeline of lithium battery group according to claim 4, it is characterised in that described rubber linking tube connects Connect, described rubber linking tube includes rubber pipe clamp（5）, caulking gum pipe（6）.
- A kind of 6. heat management system of lithium battery group, it is characterised in that including：At least two liquid cooling plate being oppositely arranged （1）, each liquid cooling plate（1）It is upper that water inlet is set respectively（9）And delivery port（10）；Inlet channel（2）And outlet conduit（18）Even It is logical, it is installed in parallel in the liquid cooling plate being oppositely arranged（1）Connecting portion, with the water inlet on cold liquid plate（9）And delivery port（10）Phase Even, and lithium battery group temperature control unit as claimed in claim 1 is installed.
- 7. the heat management system of lithium battery group according to claim 6, it is characterised in that：Described lithium battery group temperature control Part processed is arranged on inlet channel（2）On, described inlet channel（2）And outlet conduit（18）It is upper to use such as claim 3 institute The temperature control pipeline stated.
- 8. the heat management system of lithium battery group according to claim 6, it is characterised in that：Described liquid cooling plate（1）To be double Layer liquid cooling plate, between be relatively fixed by fixed plate.
- 9. the heat management system of lithium battery group according to claim 8, it is characterised in that：Described double-deck coldplate passes through Y-piece（7）Connection, Y-piece（7）Two ports connect liquid cooling plate（1）Water inlet or delivery port, another port connects accordingly Tap into waterpipe（2）Or outlet conduit（18）.
- 10. the heat management system of lithium battery group according to claim 6, it is characterised in that：Described inlet channel（2）With Outlet conduit（18）Pass through intake-outlet connector（3）It is fixedly connected.
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| CN201710905466.XA CN107681226B (en) | 2017-09-29 | 2017-09-29 | Temperature control component, temperature control pipeline and thermal management system of lithium battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905466.XA CN107681226B (en) | 2017-09-29 | 2017-09-29 | Temperature control component, temperature control pipeline and thermal management system of lithium battery pack |
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| CN107681226A true CN107681226A (en) | 2018-02-09 |
| CN107681226B CN107681226B (en) | 2024-04-16 |
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| CN107681226B (en) | 2024-04-16 |
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