CN106505276A - A kind of heat management system - Google Patents
A kind of heat management system Download PDFInfo
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- CN106505276A CN106505276A CN201610880258.4A CN201610880258A CN106505276A CN 106505276 A CN106505276 A CN 106505276A CN 201610880258 A CN201610880258 A CN 201610880258A CN 106505276 A CN106505276 A CN 106505276A
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- cooling
- cooling unit
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- cooling medium
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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
- H01M10/613—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
- H01M10/617—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
- H01M10/655—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
-
- 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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a kind of heat management system, belongs to battery thermal management field.The system includes：Multiple cooling units corresponding with multiple battery modules difference, each cooling unit are constructed to be permeable to circulation cooling medium to cool down corresponding battery modules；For receiving the main entrance of cooling medium and general export for discharging cooling medium；Flow switch, by be in fluid communication in the way of be connected with each cooling unit respectively, and multiple cooling units are interconnected in series enable from main entrance reception cooling medium along flow path flow sequentially through each cooling unit and from general export discharge；Wherein, flow switch is operable to, so that arbitrary cooling unit can receive the cooling medium from main entrance as first in multiple cooling units.The present invention can be effectively in reduction system arbitrarily between battery the temperature difference, thoroughly solve the problems, such as excessive temperature differentials between battery, so as to improve battery performance, prolongation battery.
Description
Technical field
The present invention relates to motor vehicle driven by mixed power or electric vehicle, more particularly to a kind of to motor vehicle driven by mixed power or electric motor car
Electrokinetic cell in carries out the heat management system of heat management.
Background technology
As the environmental consciousness of the increasingly serious of Energy situation, people is gradually strengthened, electric motor car is also increasingly subject to full society
Can attention, thus drive therewith is continually developing and improving for electric motor car Vehicular battery and power-supply system.Current battery
Overheated, thermal runaway is still to affect battery performance and the main cause in life-span.Main flow depot is being researched and developed liquid cooling system now
Apply in power-supply system, to improve battery performance, extend battery.
Liquid cooling system generally has three kinds of distribution forms in power-supply system：Series, parallel and serial-parallel mirror.Cascade is excellent
Point is save space, compact in design, low cost, has the disadvantage that the temperature difference of first and last battery along serial flow circuit is big, and inhomogeneous cooling affects
Battery.Parallel form advantage is that cooling concordance is good, has the disadvantage taken up space big, and high cost is unfavorable for that battery is tight
Gather design.Serial-parallel mirror advantage is can to have the disadvantage high cost, complex structure according to space rational deployment.Can with the cold scheme of upper liquid
To solve the problems, such as that system temperature is too high, but there is cost, take up room conflicting with cooling effect, and can not solve
The certainly excessive problem of temperature difference between battery.Excessive temperature differentials between battery, battery temperature concordance are excessively poor, make battery performance differ
Cause, battery life decay is uneven.Power-supply system performance and life-span depend on worst battery in system, therefore the temperature difference between battery
Excessive directly affect battery system performance and life-span.And the cold scheme of tradition liquid can only be whole to change by changing the efficiency of liquid pump
The cooling effectiveness of liquid cooling system, it is impossible to individually improve or reduce the cooling effectiveness of the corresponding cooling unit of some battery, it is impossible to
Thoroughly excessive temperature differentials between battery is solved the problems, such as.
R＆D team of tesla discloses a kind of set of cells heat-transferring method, and which is inverted by the rotating forward of liquid pump, is changed cold
But the flow direction of liquid, so that exchange the position that cooling system is always imported and exported.Because at system main entrance, coolant temperature is low, cold
But unit cooling effectiveness is high, and at general export, coolant temperature is high, and cooling unit cooling effectiveness is low, therefore, by exchanging cooling system
System is total to import and export position, and the cooling effectiveness at regulating system first and last end can reduce the temperature difference of total import and export battery.
Content of the invention
Inventors herein have recognized that：For power-supply system, pyrotoxin exists multiple, in addition to battery itself, also comes
From extraneous thermal source, the exhaustor variable interval work of such as hybrid electric vehicle, the difference of surface temperature locally dabble, and speed is not
With air-flow cooling difference etc. is caused, the battery of excessive temperature differentials can be caused to appear at unfixed position.However, special this
Draw announcement method solve the problems, such as that the battery temperature difference at system liquid in-out mouth is big, for for example not fixing at other positions
The big situation of the battery temperature difference at position is insurmountable.Therefore, prior art does not solve problems with, that is, work as the temperature difference
Excessive battery not in the case of cooling system or the total import and export of heating system, how to reduce excessive temperature differentials battery and its
The temperature difference between his battery.
It is an object of the present invention to a kind of heat management system is provided, in motor vehicle driven by mixed power or electric vehicle
Electrokinetic cell carry out heat management, the electrokinetic cell includes multiple battery modules；The heat management system includes：
Multiple cooling units corresponding with the plurality of battery modules difference, each cooling unit are constructed to be permeable to circulate cold
But medium is cooling down corresponding battery modules；
For receiving the main entrance of the cooling medium and general export for discharging the cooling medium；With
Flow switch, its are connected with each cooling unit in the way of being in fluid communication respectively, and by the plurality of cooling
Unit is interconnected in series and enables the cooling medium received from the main entrance suitable along flow path
Flow through to sequence each cooling unit and discharge from the general export；
Wherein, the flow switch is operable to, so that the arbitrary cooling unit in the plurality of cooling unit
The cooling medium from the main entrance can be received as first in the plurality of cooling unit.
Further, the flow switch includes mutually disconnected multiple interface channels, the plurality of interface channel
It is connected in the way of being in fluid communication with the main entrance, the plurality of cooling unit and the general export respectively, will be described total
Entrance, the plurality of cooling unit and the general export are interconnected in series.
Further, the flow switch is moveable, when mobile to be operated in the flow switch,
The cooling medium sequentially passes through each cooling unit with the flow path that changes and/or change.
Further, each cooling unit has two ports, wherein, when the either port conduct in described two ports
During the entrance of the cooling medium, the outlet of another port in described two ports as the cooling medium；And
The plurality of interface channel of the flow switch includes：
Passage, one end of the entrance passage and the main entrance communication is entered, the other end is cold with the plurality of
But a port communication of a cooling unit in unit；
Passing away, one end of the passing away and general export's communication, the other end are cold with the plurality of
But a port communication of a cooling unit in unit；With
One or more guiding channels, the two ends of each guiding channel respectively different from the plurality of cooling unit two
The respective a port of individual cooling unit is connected.
Further, the flow switch includes that the block of circle, the plurality of interface channel are formed in the block
Internal；The main entrance and the general export are formed at the block；
Wherein, described the other end of passage, the other end of the passing away entered and each described is drawn
The two ends of pathway are formed at the circumference of the block, and the corresponding port flow with the plurality of cooling unit respectively
Body is connected；
Wherein, the block is arranged to around its center rotating, to cause the entrance after the Block rotation
The two ends of the other end of passage, the other end of the passing away and each guiding channel are changing
Corresponding relation connect with the port flow of the plurality of cooling unit respectively so that stream of the cooling medium to change
Dynamic path and/or change sequentially pass through each cooling unit.
Further, the other end for entering passage, the other end of the passing away and each institute
The two ends for stating guiding channel are spacedly distributed along the circumference of the block, the port of the plurality of cooling unit
The circumference along the block is spacedly distributed, so that the block often rotates a predetermined angular and described entrance is led to
The two ends of the other end in road, the other end of the passing away and each guiding channel are with different
Corresponding relation is connected with the port flow of the plurality of cooling unit respectively.
Further, the two ends of each guiding channel are relative along the diameter of the block, the institute for entering passage
State the other end relative along the diameter of the block with the other end of the passing away.
Further, the heat management system also includes：
Temperature detecting unit, for detecting the temperature of each battery modules；
Controller, according to the temperature detected by the temperature detecting unit, determines in the plurality of cooling unit
Cooling unit is first cooling unit for receiving the cooling medium from the main entrance, and calculates answering for the block
Rotational angle；
Actuator, drives the block to answer rotational angle around described in its center rotating under the control of the controller.
Further, the plurality of cooling unit is at least three cooling units.
The heat management system of the present invention, due to be able to receiving arbitrary cooling unit from main entrance as first
Cooling medium cooling unit, therefore, when the temperature for determining wherein some battery modules according to the temperature of each battery modules
When spending big or larger with the temperature difference of other battery modules, can be defined as needing first cooling for flowing through of cooling medium
Unit, so that cooling medium can first flow through the battery modules that the temperature is excessive or the temperature difference is larger, improves the battery modules pair
The cooling effectiveness of the cooling unit that answers, the temperature difference that can be effectively in reduction system between battery solve temperature difference mistake between battery
Big problem, so as to improve battery performance, extends battery.
According to the solution of the present invention, flow switch is moveable, when flow switch is operated and is moved, cooling
Medium can sequentially pass through each cooling unit with the flow path that changes and/or change.It is that each cooling unit has can
First cooling unit that cooling medium is flowed through can be changed into, when first cooling unit changes, which cools down path and will follow
Change.When the cooling unit corresponding to the larger battery modules of temperature higher temperatures difference becomes first cooling that cooling medium is flowed through
Unit, then to become the cooling of cooling effectiveness highest due to receiving the minimum cooling medium of temperature first single for the cooling unit
Unit, therefore, the temperature of corresponding battery modules can efficiently be reduced and be reduced and the temperature between other battery modules
Difference.When temperature is higher or the battery modules of excessive temperature differentials occur in other positions, then flow switch can continue to be operable to
Change cooling medium flow direction, with change first reception cooling medium cooling unit, so as to continue reduce battery modules it
Between the temperature difference.So, As time goes on, by flow switch execute one or many to the break-in of cooling medium it
Afterwards, the temperature difference between battery modules will be gradually reduced.Therefore, the scheme of the application, can execute one by flow switch
Secondary or repeatedly to the break-in of cooling medium after, accumulation over time is gradually lowered the temperature difference between each battery modules, makes
The temperature difference obtained between multiple battery modules can be substantially equal to perfect condition, that is, be substantially equal to the state that the temperature difference is zero.
In addition, the solution of the present invention, as cooling medium flowed back to the flow direction conversion before next cooling unit is entered
Device, then heat management system is flowed out by general export.So that valve control pipe-line layout is simple, cost is relatively low.
According to the detailed description below in conjunction with accompanying drawing to the specific embodiment of the invention, those skilled in the art will be brighter
The above-mentioned and other purposes of the present invention, advantages and features.
Description of the drawings
Some specific embodiments of the present invention are described in detail hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the principle schematic of heat management system according to an embodiment of the invention；
Fig. 2 is the top view of heat management system according to an embodiment of the invention；
Fig. 3 is the decomposing schematic representation of heat management system according to an embodiment of the invention；
Fig. 4 is the inside connecting pipeline structure schematic diagram by flow switch according to an embodiment of the invention, and
Show the flow direction of cooling medium of the flow switch under current state；
Fig. 5 is on the basis of Fig. 4 to illustrate the cooling medium flow direction order after 30 ° of flow switch rotate counterclockwise
Figure；
Fig. 6 is on the basis of Fig. 4 to illustrate the flow switch order of the cooling medium flow direction after 30 ° that turns clockwise
Figure.
Specific embodiment
Fig. 1 shows the structured flowchart of the heat management system 100 according to first embodiment of the invention, and which can be used for right
Electrokinetic cell carries out heat management.It is appreciated that for, for motor vehicle driven by mixed power or electric vehicle, these electrokinetic cells are usual
It is provided in battery bag 111, and is arranged in the form of multiple battery modules 110.N battery is exemplarily depicted in Fig. 1
Module, i.e. 1～n of battery modules.
The heat management system 100 can include multiple cooling units 140 corresponding with multiple battery modules 110, that is,
The corresponding cooling unit 140 for being cooled down to which of each battery modules 110, with 1～n of battery modules in such as Fig. 1
Corresponding 1～the n of cooling unit of difference.Cooling unit 140 is constructed to be permeable to circulation cooling medium to cool down corresponding battery modules
110.Cooling medium can flow in cooling unit 140, so that its heat for distributing is absorbed at battery modules 110, and will
Heat takes the outside of battery bag 111 to and is radiated.Cooling medium can be that liquid, gas or gel etc. have good cooling effect
Fruit and the coolant of good fluidity.Cooling unit 140 can be the heat exchanger of any suitable construction, and which can be disposed directly beside
Or contact battery modules 110, to absorb the heat for giving out of battery modules 110 to cool down battery modules 110.In other realities
Apply in example, it is also possible to which more cooling units 140 are set at arbitrary battery modules 110, and with the alternate manner different from Fig. 1
Arrangement.
The heat management system 100 can include main entrance 31 and general export 32 and flow switch 160.Use main entrance 31
In receiving the cooling medium for example from storage tank 180, and to be provided to cooling unit 140, general export 32 will be for will flow through
Cooling medium after cooling unit 140 is expelled to such as storage tank 180.Flow switch 160 by be in fluid communication in the way of respectively with
Each cooling unit 140 connects, and multiple cooling units 140 is interconnected in series so that connecing from main entrance 31
The cooling medium of receipts can flow sequentially through each cooling unit 140 along flow path and discharge from general export 32.In a reality
Apply in example, flow switch 160 is to realize the series connection to multiple cooling units 140 by the fluid passage being internally formed at which
Connection, this will hereinafter be described in detail.As shown in figure 1, the heat management system 100 can also include storage cooling medium
Storage tank 180, for pumping the pump 170 and the heat abstractor 190 for being radiated of cooling medium to cooling medium.In work
When making, cooling medium is pumped into main entrance 31 from storage tank 180 by pump 170, and the cooling medium via the reception of main entrance 31 is according to stream
The flow path limited to transducer 160 is discharged through general export 32 after sequentially passing through each cooling unit 140 again, then through dissipating
Thermal 190 radiates and returns to after lowering the temperature in storage tank 180, so as to form the cooling circuit 130 of cooling medium.
Flow switch 160 is operable to, so that the arbitrary cooling unit 140 in multiple cooling units 140 can be made
The cooling medium from main entrance 31 is received for first in multiple cooling units 140.In other words, flow switch
160 flow directions that can change the cooling medium received from main entrance 31 so as to can flow to first as needed arbitrary desired
Cooling unit 140, so that generally change sequence of flow of the cooling medium in each cooling unit.Due to each cooling list
140 corresponding battery modules 110 of unit, therefore, when the temperature of a certain battery modules 110 is of a relatively high, can be as needed
To operate flow switch 160 so that the 110 corresponding cooling unit 140 of battery modules enters from always as first reception
The cooling unit 140 of the cooling medium of mouth 31, sequentially passes through other cooling units 140 according still further to flow path, so that cold
But to cool down the temperature higher for the of a relatively high cooling unit 140 (relatively low by the temperature of cooling medium in the inner) of efficiency
Battery modules 110.Cooling medium is flowed out after last cooling unit 140 along flow path, can be entered outside battery bag 111
The heat abstractor 190 in portion, and exchanged heat with media such as such as air herein so that cooling medium radiates and lowers the temperature.Cooling
After cooling medium afterwards returns storage tank 180, electrokinetic cell can be entered via cooling circuit 130 again in the presence of pump 170
Row cooling.Although the heat management system 100 is mainly used in the cooling to electrokinetic cell, it will be appreciated that can also be in cooling
The heater of heated cooling medium is provided in loop 130, so as under the situation such as ambient temperature is colder, by heating
Cooling medium and the temperature difference between different battery modules 110 is gradually reduced.Storage tank 180, pump above in association with Fig. 1 descriptions
170th, heat abstractor 190 or the heater that does not use can be to adopt conventional construction and arrangement mode, in other embodiments
The suitable construction and arrangement mode of other different from Fig. 1 can also be adopted.
Compared with prior art, due to be able to receiving arbitrary cooling unit 140 from main entrance as first
The cooling unit 140 of 31 cooling medium, therefore, when according to the temperature of each battery modules 110 determination wherein some battery
When the temperature of module 110 is excessive or larger with the temperature difference of other battery modules 110, can be defined as needing cooling medium
One cooling unit 140 for flowing through, so that cooling medium can first flow through the battery modules that temperature is excessive or the temperature difference is larger
110, the cooling effectiveness of the 110 corresponding cooling unit 140 of battery modules is improved, can be effectively in reduction system between battery
The temperature difference, solves the problems, such as excessive temperature differentials between battery, so as to improve battery performance, extends battery.Specifically
Ground, near the main entrance 31 of heat management system 100, the temperature of cooling medium is minimum, and cooling effectiveness is with respect to highest.According to this
Bright scheme, by operating flow switch 160 so that the battery modules 110 that the temperature difference is maximum in system or temperature is higher are corresponding
Cooling unit 140 become first receive from the main entrance 31 of system cooling medium cooling unit 140 so that cooling
The battery modules 110 that 140 cooling range of cooling unit of efficiency high is maximum or temperature is higher.So, As time goes on, and
It is accompanied by and may operates flow switch 160 in multiple times so that the temperature difference between battery modules is gradually reduced.
In order to realize that the flow direction to cooling medium is guided, flow switch 160 can include mutually disconnected multiple companies
Road connecting passage in other words is connected, multiple interface channels are respectively with main entrance 31, multiple cooling units 140 and general export 32 with stream
The mode of body connection connects, and main entrance 31, multiple cooling units 140 and general export 32 are interconnected in series,
Cooling medium is enabled to sequentially pass through main entrance 31, multiple cooling units 140 and general export 32.Cooling medium can be with selectivity
Initially enter arbitrary cooling unit 140, the cooling unit 140 is received cooling medium at main entrance as first
Cooling unit 140, then cooling medium enter next cooling unit 140 according to the interface channel in flow switch 160,
Until being flowed out by general export 32 after entering last cooling unit 140 again.Flow switch 160 be moveable, so as to
Flow switch 160 by operation during movement, by changing its interface channel and main entrance 31, multiple cooling units 140 and total
The connection corresponding relation of outlet 32, so that cooling medium is each with sequentially passing through for the flow path that changes and/or change
Cooling unit 140.So, when by operate flow switch 160 using another cooling unit 140 as first receive from
During the cooling unit 140 of the cooling medium at main entrance 31, although the communicating passage of flow switch 160 does not change itself,
But as its connection corresponding relation with main entrance 31, multiple cooling units 140 and general export 32 there occurs change, therefore by
Being connected in series for they and the flow path that formed is just natural therefore can change.So, by operating flow switch 160,
Each cooling unit 140 is likely to become first cooling unit that cooling medium is flowed through.When first cooling unit changes
When, the flow path of cooling medium cools down path in other words and will follow change.When the battery mould that temperature is higher or the temperature difference is larger
Cooling unit 140 corresponding to group 110 is when becoming first cooling unit that cooling medium is flowed through, then the cooling unit 140 is then
Cooling effectiveness highest cooling unit 140 can be become due to receiving the minimum cooling medium of temperature first, therefore, corresponding
The temperature of battery modules 110 can efficiently be reduced and be reduced and the temperature difference between other battery modules 110.When temperature compared with
The battery modules of high or excessive temperature differentials occur in other positions, then flow switch 160 can continue to be operated to vary cooling
The flow direction of medium, to change the cooling unit of first reception cooling medium, so that continue to reduce the temperature difference between battery modules.
So, As time goes on, after executing break-in of the one or many to cooling medium by flow switch 160, battery
The temperature difference between module 110 will be gradually reduced.
When being embodied as, each cooling unit 140 can have two ports, wherein, either end in two ports
Mouthful as cooling medium entrance when, the outlet then as cooling medium of the another port in two ports.All cooling units
The main entrance 31 of 140 all of the port and cooling medium is connected with the interface channel of flow switch 160 with general export 32
Logical, this may be referred to Fig. 2-Fig. 4.
Fig. 2 shows the top view of heat management system according to an embodiment of the invention 100.Fig. 3 is shown according to this
The decomposing schematic representation of the heat management system of invention one embodiment.Shown in Fig. 2 and Fig. 3, in one embodiment, flow direction conversion
Device 160 can be shaped as the block of circle.As shown in figure 4, multiple interface channels are formed in bulk inner, main entrance 31 and always go out
Mouth 32 can also be formed at the block.
In the embodiment shown in Fig. 2-Fig. 4, the heat management system 100 exemplarily includes six cooling units 140, point
It is not the first cooling unit 41, the second cooling unit 42, the 3rd cooling unit 43, the 4th cooling unit 44, the 5th cooling unit
45 and the 6th cooling unit 46.For each cooling unit, two port is identified with a and b respectively.So, for example for
One cooling unit 41, two port is then individually identified as 41a and 41b.Multiple interface channels of flow switch 160 include into
Enter passage 61, passing away 62 and one or more guiding channels 63.Include aforementioned 6 cooling units in heat management system 100
In the case of 41-46, as shown in figure 4, the interface channel of flow switch 160 includes entering passage 61, passing away 62 and five
Individual guiding channel 63.Enter one end of passage 61 and the one of 31 communication of main entrance, the other end and the 5th cooling unit 45
Individual port 45b communications.One end of passing away 62 and 32 communication of general export, the other end and the second cooling unit
42 a port communication.The two ends of a guiding channel 63 in five guiding channels 63 respectively will be single for the 5th cooling
Unit 45 is connected with 41 respective a port of the first cooling unit, and the two ends of a guiding channel 63 respectively will be single for the first cooling
Unit 41 is connected with 44 respective a port of the 4th cooling unit, and the two ends of a guiding channel 63 respectively will be single for the 4th cooling
Unit 44 is connected with 46 respective a port of the 6th cooling unit, and the two ends of a guiding channel 63 respectively will be single for the 6th cooling
Unit 46 is connected with 43 respective a port of the 3rd cooling unit, and the two ends of a guiding channel 63 respectively will be single for the 3rd cooling
Unit 43 is connected with 42 respective a port of the second cooling unit.Due to the 5th cooling unit 45 a port 45b with total
The other end communication of entrance 31, therefore, now the 5th cooling unit 45 is cooled down as first that cooling medium is flowed through
Unit.According to five guiding channels 63 respectively with the annexation between each cooling unit, cooling medium flows through six coolings
The order of unit 41-46 is the 5th cooling unit 45, the first cooling unit 41, the cooling list of the 4th cooling unit the 44, the 6th successively
First 46, the 3rd cooling unit 43 and the second cooling unit 42.Therefore, the flow path of cooling medium or cooling path are：31-
45b-45a-41b-41a-44b-44a-46b-46a-43b-43a-42b-42a-32.Its principle flows through at first for cooling medium
During five cooling units 45, the 5th cooling unit 45 becomes cooling effectiveness highest cooling unit, the cooling of other cooling units
Efficiency is relatively lower, accumulation over time, the battery modules 110 and other cooling units corresponding to the 5th cooling unit 45
The temperature difference between corresponding battery modules 110 can be gradually reduced.
In the embodiment shown in Fig. 2-Fig. 4, flow switch 160 includes seven interface channels, respectively one entrance
61, passing away 62 of passage and five guiding channels 63.Enter the other end of passage 61, passing away 62 the other end with
And the two ends of each guiding channel 63 are formed at the circumference of block, and the corresponding port with multiple cooling units 140 respectively
It is in fluid communication.More specifically, as shown in figure 4, entering the other end of passage 61, the other end of passing away 62 and each drawing
The two ends of pathway 62 are spacedly distributed along the circumference of block, the circumference etc. of the port of six cooling unit 41-46 along block
It is spaced apart.The two ends of each guiding channel 63 are relative along the diameter of block, enter the other end and passing away 62 of passage 61
The other end relative along the diameter of block.So cause block often rotate a predetermined angular cause enter passage 61 the other end,
The two ends of the other end of passing away 62 and each guiding channel 63 with different corresponding relations respectively with six cooling units
The port flow connection of 41-46.Wherein, block is arranged to around its center rotating, to cause to enter after Block rotation
Corresponding relation difference of the two ends of the other end of passage 61, the other end of passing away 62 and each guiding channel 63 to change
Connect with the port flow of six cooling unit 41-46, so that cooling medium is with the flow path that changes and/or change
Sequentially pass through each cooling unit.It is straight-through passage that Fig. 4 also schematically illustrates the structure of guiding channel 63.It is appreciated that
, in other embodiments, which can also be that by the other types circulated by cooling medium according to flow path
Passage, the passage that can be bent for example being made up of flexible pipe.
Fig. 5 is, on the basis of Fig. 4, the medium after 30 ° of flow switch rotate counterclockwise is flowed to sequential schematic.?
In one embodiment, 30 ° of 160 rotate counterclockwise of flow switch actually block is around 30 ° of its center rotate counterclockwise, and flows
It is changeless to the interface between transducer 160 and cooling unit 140.I.e. when 30 ° of 160 rotate counterclockwise of flow switch
When, the port position of the position of cooling unit 140 and cooling unit 140 is constant, and this also can be by the comparison of Fig. 4 and Fig. 5
And draw.When 30 ° of 160 rotate counterclockwise of flow switch so that enter the other end of passage 61, passing away 62 another
End and the corresponding relation between the two ends of each guiding channel 63 and the port of six cooling unit 41-46 change.Such as Fig. 5 institutes
Show, the other end for entering passage 61 follows Block rotation at 42b.The other end of passing away 62 follows Block rotation to 43a
Place.The two ends of five guiding channels 63 are also correspondingly changed with the corresponding relation of the port of six cooling unit 41-46.Five
The two ends of a guiding channel 63 in individual guiding channel 63 respectively will be respective to the second cooling unit 42 and the 5th cooling unit 45
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 5th cooling unit 45 and the first cooling unit 41
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the first cooling unit 41 and the 4th cooling unit 44
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 4th cooling unit 44 and the 6th cooling unit 46
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 6th cooling unit 46 and the 3rd cooling unit 43
A port be connected.Due to a port 42b and the other end communication of main entrance 31 of the second cooling unit 42,
Therefore, first cooling unit that now the second cooling unit 42 is flowed through as cooling medium.According to 63 points of five guiding channels
Not with the annexation between each cooling unit, it is second successively that cooling medium flows through the order of six cooling unit 41-46
Cooling unit 42, the 5th cooling unit 45, the first cooling unit 41, the 4th cooling unit 44, the 6th cooling unit 46 and the 3rd
Cooling unit 43.Therefore, the flow path of cooling medium or cooling path are：31-42b-42a-45b-45a-41b-41a-
44b-44a-46b-46a-43b-43a-32.When its principle flows through the second cooling unit 42 at first for cooling medium, this is second cold
But unit 42 becomes cooling effectiveness highest cooling unit, and the cooling effectiveness of other cooling units is relatively lower, over time
Accumulation, between the battery modules 110 corresponding with other cooling units of the battery modules 110 corresponding to the second cooling unit 42
The temperature difference can be gradually reduced.
Fig. 6 is that the medium after 30 ° that flow switch turns clockwise on the basis of Fig. 4 flows to sequential schematic.?
In one embodiment, the 30 ° of actually blocks that turn clockwise of flow switch 160 turn clockwise 30 ° around the wherein heart, and flow
It is changeless to the interface between transducer 160 and cooling unit 140.I.e. when flow switch 160 turns clockwise 30 °
When, the port position of the position of cooling unit 140 and cooling unit 140 is constant, and this also can be by the comparison of Fig. 4 and Fig. 6
And draw.When flow switch 160 turn clockwise 30 ° when so that enter the other end of passage 61, passing away 62 another
End and the corresponding relation between the two ends of each guiding channel 63 and the port of six cooling unit 41-46 change.Such as Fig. 6 institutes
Show, the other end for entering passage 61 follows Block rotation at 45a.The other end of passing away 62 follows Block rotation to 41b
Place.The two ends of five guiding channels 63 are also correspondingly changed with the corresponding relation of the port of six cooling unit 41-46.Five
The two ends of a guiding channel 63 in individual guiding channel 63 respectively will be respective to the 5th cooling unit 45 and the second cooling unit 42
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the second cooling unit 42 and the 3rd cooling unit 43
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 3rd cooling unit 43 and the 6th cooling unit 46
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 6th cooling unit 46 and the 4th cooling unit 44
A port be connected, the two ends of a guiding channel 63 respectively will be respective to the 4th cooling unit 44 and the first cooling unit 41
A port be connected.Due to a port 45a and the other end communication of main entrance 31 of the 5th cooling unit 45,
Therefore, first cooling unit that now the 5th cooling unit 45 is flowed through as cooling medium.According to 63 points of five guiding channels
Not with the annexation between each cooling unit, it is the 5th successively that cooling medium flows through the order of six cooling unit 41-46
Cooling unit 45, the second cooling unit 42, the 3rd cooling unit 43, the 6th cooling unit 46, the 4th cooling unit 44 and first
Cooling unit 41.Therefore, the flow path of cooling medium or cooling path are：31-45a-45b-42a-42b-43a-43b-
46a-46b-44a-44b-41a-41b-32.When its principle flows through five cooling units 45 at first for cooling medium, the 5th is cold
But unit 45 becomes cooling effectiveness highest cooling unit, and the cooling effectiveness of other cooling units is relatively lower, over time
Accumulation, between the battery modules 110 corresponding with other cooling units of the battery modules 110 corresponding to the 5th cooling unit 45
The temperature difference can be gradually reduced.
In other embodiments, the quantity of cooling unit 140 can also be the other quantity of three or more than three.Arbitrary
Cooling unit 140 can serve as the cooling unit 140 at main entrance 31, and thus, arbitrary cooling unit 140 can become cold
But efficiency highest cooling unit 140.
In order to detect the control of the temperature and realization of battery modules 110 to flow switch 160, the heat management system
100 can also be included for detecting temperature detecting unit 120, controller 150 and the brake of 110 temperature of each battery modules.
Temperature detecting unit 120 can be arranged at battery modules 110.Controller 150 is used for being detected according to temperature detecting unit 120
Temperature, determine that the cooling of a cooling unit 140 in multiple cooling units 140 for receiving from the main entrance is situated between
First cooling unit of matter, and calculate block answer rotational angle.Brake is used for drive block under control of the controller 150
Body answers rotational angle around its center rotating.In one embodiment, temperature detecting unit 120 or controller 150 can be configured
Into the temperature difference being calculated between different battery modules 110 and/or the temperature rise rate of each battery modules 110, according to the temperature difference and/
Or the temperature rise rate of each battery modules is determining cooling unit 140 that cooling medium first is flowed through.In one embodiment,
Temperature detecting unit 120 can include temperature-sensing element and the treatment element for integrating.Temperature-sensing element is used for examining
The temperature of battery modules 110 is surveyed, treatment element is used for processing the temperature data of battery modules 110, to obtain different electricity
The temperature rise rate of the temperature difference and/or each battery modules 110 between pond module 110.In another embodiment, temperature-sensing element
It is not integrated in together with treatment element, temperature-sensing element is arranged at battery modules, and treatment element is arranged on other positions,
Can for example be arranged on the chip of controller 150.In order to reduce the load for the treatment of element, treatment element can be configured to only count
Calculate the temperature difference between each battery modules 110 and temperature highest battery modules 110, it is not necessary to calculate each battery modules
The temperature difference between 110 and other all battery modules 110.
Wherein, the control principle of controller 150 is：Assume that the n current temperature of battery modules 110 is respectively T1、T2……
Tn, in certain time, the n battery modules heat speed is respectively Q1、Q2……Qn, the n battery modules in the same time
Rate of heat dispation is q1、q2……qn, then, after the t times, the temperature of the n battery modules is T1'=T1+(Q1-q1)……Tn'=Tn+
(Qn-qn), below equation to be met：
Wherein,The mean temperature of battery modules when being t,The mean temperature of battery modules when being t-1 moment.
By controlling the flow direction of cooling medium and changing the order of heat transfer, the temperature of battery modules 110 can decrease, and with
The accumulation of time, the temperature difference of each battery modules 110 can be gradually reduced.
It is appreciated that heat management system 100 will not frequently change cooling medium flow direction in practical work process, if system
In all battery modules 110 the temperature difference not less than fiducial temperature threshold value and/or each battery modules 110 temperature rise rate not
When exceeding default temperature rise rate, then the flow path of control cooling medium keeps constant.
The flow path of cooling medium is that cooling medium enters into first cooling list by interface channel by main entrance 31
Flow back to after unit in block, flowed then according to flow path, until block is flowed back to again after entering last cooling unit
Interior, finally flowed out by general export 32.Flow switch 160 is set in that way, on the one hand, cooling medium is next in entrance
To flow back in block before individual cooling unit 140, be rather than directly into next cooling unit 140, reduce valve keyholed back plate road
Layout arrange；On the other hand, the flow path due to needing first rotating mass to cause cooling medium to change initially enters finger
Fixed cooling unit 140, this setup is ingenious and simple, increased the accuracy of valve control, and reduces indirectly valve keyholed back plate
The setting of road layout, reduces cost.It is understood that in other embodiments, the flow switch 160 can also be arranged
For other shapes and structure, using arbitrary cooling unit as the cooling unit of first reception cooling medium need to be only
Can.According to the solution of the present invention, when the battery of excessive temperature differentials occurs in other positions, then flow to reforming unit and can continue to change
Flow direction, so as to reduce the temperature difference between battery, thoroughly solves the problems, such as battery excessive temperature differentials.
In other embodiments, battery modules 110 can be other layout type, correspondingly, adjust cooling unit 140
Layout type.The layout side of battery modules 110 can also be adjusted according to the requirement of the rate of heat dispation of each battery modules 110
Formula.The calculating of sequence of flow group can be made, optimum heat exchange is given according to the temperature difference requirement or result of the test between battery unit
Scheme.The rate of heat dispation of such as battery modules A and B requires bigger than the rate of heat dispation of other battery modules 200%, it is desirable to battery mould
The rate of heat dispation of group C is less than the rate of heat dispation of other battery modules by 70%, therefore in arrangement, by adjacent for battery modules A, B arrangement,
Battery modules C be placed on battery modules A, B distance most far from.In normal conditions, when battery modules A or B reach 40
DEG C, and when being more than 4 DEG C with the temperature difference of battery modules C, controller 150 controls the flow direction of cooling medium and is：31-Ao-Bi-
Bo-……-Ai- 32, cool down 75 seconds；The flow direction for adjusting cooling medium again is 31- (B-1)i-Bo-Bi-Ao-Ai-……-(B-1)o-
32, cool down 85 seconds.Wherein, AiRepresent the entrance of the cooling unit 140 at battery modules A, AoRepresent the cooling at battery modules A
The outlet of unit 140, BiRepresent the entrance of the cooling unit 140 at battery modules B, BoRepresent the cooling unit at battery modules B
140 outlet, by that analogy, (B-1)iThe entrance of the cooling unit 140 at battery modules B-1 is represented, (B-1)oRepresent battery mould
The outlet of the cooling unit 140 at group B-1.When temperature drop rate or the temperature difference reduce, adjust two sections of cool times and improve water temperature
With energy-conservation.Experiment proves that, in last battery bag 111 during all 110 hygral equilibriums of battery modules, temperature is less than 48 degree, the temperature difference
Less than 2 degree, 111 use requirement of battery bag is met.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe multiple showing for the present invention
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other variations or modifications all these.
Claims (9)
1. a kind of heat management system, for carrying out heat management to the electrokinetic cell in motor vehicle driven by mixed power or electric vehicle, described
Electrokinetic cell includes multiple battery modules；The heat management system includes：
Multiple cooling units corresponding with the plurality of battery modules difference, each cooling unit are constructed to be permeable to circulation cooling and are situated between
Matter is cooling down corresponding battery modules；
For receiving the main entrance of the cooling medium and general export for discharging the cooling medium；With
Flow switch, its are connected with each cooling unit in the way of being in fluid communication respectively, and by the plurality of cooling unit
Be interconnected in series enable from the main entrance receive the cooling medium along flow path sequentially
Flow through each cooling unit and discharge from the general export；
Wherein, the flow switch is operable to, so that the arbitrary cooling unit in the plurality of cooling unit can be made
The cooling medium from the main entrance is received for first in the plurality of cooling unit.
2. heat management system according to claim 1, it is characterised in that the flow switch includes mutually disconnected
Multiple interface channels, the plurality of interface channel respectively with the main entrance, the plurality of cooling unit and the general export with
The mode of fluid communication connects, by the main entrance, the plurality of cooling unit and general export phase in series
Intercommunicated.
3. heat management system according to claim 2, it is characterised in that the flow switch be moveable, so as to
Operated in the flow switch and mobile when, the cooling medium is with the flow path that changes and/or the sequential flow of change
Cross each cooling unit.
4. heat management system according to claim 2, it is characterised in that each cooling unit has two ports, wherein,
When the either port in described two ports is used as the entrance of the cooling medium, the another port in described two ports is made
Outlet for the cooling medium；And
The plurality of interface channel of the flow switch includes：
Passage, one end of the entrance passage and the main entrance communication is entered, the other end is single with the plurality of cooling
The a port communication of a cooling unit in unit；
Passing away, one end of the passing away and general export's communication, the other end are single with the plurality of cooling
The a port communication of a cooling unit in unit；With
One or more guiding channels, two that the two ends of each guiding channel are different from the plurality of cooling unit respectively are cold
But the respective a port of unit is connected.
5. heat management system according to claim 4, it is characterised in that the flow switch includes the block of circle,
The plurality of interface channel is formed in the bulk inner；The main entrance and the general export are formed at the block；
Wherein, the other end for entering passage, the other end of the passing away and each guiding are logical
The two ends in road are formed at the circumference of the block, and port flow corresponding with the plurality of cooling unit connects respectively
Logical；
Wherein, the block is arranged to around its center rotating, to cause the entrance passage after the Block rotation
The other end, the other end of the passing away and each guiding channel the two ends right with changed
Should be related to, so that flowing road of the cooling medium to change
Footpath and/or change sequentially pass through each cooling unit.
6. heat management system according to claim 5, it is characterised in that the other end of the entrance passage, described
The two ends of the other end of passing away and each guiding channel along the block the circumference at equal intervals
Distribution, the port of the plurality of cooling unit is spacedly distributed along the circumference of the block, so that described piece
Body often rotate a predetermined angular cause described enter the other end of passage, the other end of the passing away and per
The two ends of guiding channel described in are connected with the port flow of the plurality of cooling unit respectively with different corresponding relations.
7. the heat management system according to claim 5 or 6, it is characterised in that the two ends of each guiding channel are along institute
The diameter for stating block is relative, and the other end of the entrance passage is with the other end of the passing away along the block
Diameter relative.
8. the heat management system according to any one of claim 5-7, it is characterised in that also include：
Temperature detecting unit, for detecting the temperature of each battery modules；
Controller, according to the temperature detected by the temperature detecting unit, determines a cooling in the plurality of cooling unit
Unit is first cooling unit for receiving the cooling medium from the main entrance, and calculates should rotating for the block
Angle；
Actuator, drives the block to answer rotational angle around described in its center rotating under the control of the controller.
9. according to the heat management system any one of claim 1-8, it is characterised in that the plurality of cooling unit is at least
Three cooling units.
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| CN108944530A (en) * | 2018-07-24 | 2018-12-07 | 李的根 | A kind of new energy car battery charging method |
| CN109167105A (en) * | 2018-07-20 | 2019-01-08 | 北京长城华冠汽车科技股份有限公司 | A kind of new energy vehicle tandem heat management system and new-energy automobile |
| CN109709137A (en) * | 2018-12-28 | 2019-05-03 | 湖北雷迪特冷却***股份有限公司 | A kind of cell water cold plate temperature uniformity test device and method |
| CN110492196A (en) * | 2019-08-02 | 2019-11-22 | 广州小鹏汽车科技有限公司 | Heat management system, vehicle, conversion equipment and thermal management algorithm |
| CN112151912A (en) * | 2020-09-29 | 2020-12-29 | 东风汽车集团有限公司 | Cooling liquid flow direction controllable battery pack, battery pack thermal management system and control method |
| CN112993446A (en) * | 2019-12-18 | 2021-06-18 | 观致汽车有限公司 | Liquid cooling system for battery pack, battery pack and vehicle |
| CN113381096A (en) * | 2021-06-09 | 2021-09-10 | 上海理工大学 | Real-time optimization battery thermal management system based on cooling path |
| CN114039124A (en) * | 2021-11-09 | 2022-02-11 | 镇江市高等专科学校 | Power battery multistage heat dissipation system based on magnetic refrigeration effect and control method |
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| CN114039124A (en) * | 2021-11-09 | 2022-02-11 | 镇江市高等专科学校 | Power battery multistage heat dissipation system based on magnetic refrigeration effect and control method |
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| CN106505276B (en) | 2018-12-21 |
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