CN108206256A - A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system - Google Patents
A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system Download PDFInfo
- Publication number
- CN108206256A CN108206256A CN201810123915.XA CN201810123915A CN108206256A CN 108206256 A CN108206256 A CN 108206256A CN 201810123915 A CN201810123915 A CN 201810123915A CN 108206256 A CN108206256 A CN 108206256A
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- Prior art keywords
- collecting plate
- liquid collecting
- battery
- thermally conductive
- electric vehicle
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- 239000007788 liquid Substances 0.000 title claims abstract description 119
- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 59
- 239000012809 cooling fluid Substances 0.000 claims description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229920007019 PC/ABS Polymers 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling systems, including upper, the battery bracket of lower setting, the battery pack and battery control unit being fixed between the battery bracket, the battery pack includes the cylindrical battery of several ranks distribution, the top and bottom of the battery bracket are fixedly installed liquid collecting plate and lower liquid collecting plate respectively, the hollow thermally conductive sheet contacted with cylindrical battery face is provided between the adjacent cylindrical battery, the upper interface and lower interface of the hollow thermally conductive sheet are connected respectively with upper liquid collecting plate and lower liquid collecting plate.The present invention has the characteristics that heat management performance is good, pump small power consumption, lightweight needed for system, can efficient balance battery pack temperature, extension battery life, the course continuation mileage for increasing electric vehicle.
Description
Technical field
The invention belongs to electric automobile power battery technical field, more particularly to a kind of light-weighted electric vehicle lithium ion
Power battery heat management liquid cooling system.
Background technology
As the power resources of electric vehicle, the performance of battery plays the overall performance of electric vehicle most important
Effect.The performance of lithium-ion-power cell is more sensitive to the variation of temperature, and too high or too low temperature can all influence its resistance
The performances such as anti-, capacity, cycle efficieny, service life.In order to which battery is allowed to maintain a suitable temperature range (25 DEG C ~ 40 DEG C), control
Battery pack processed maximum temperature difference (<5 DEG C), it is necessary to heat management is carried out to power battery.
Current main heat management mode has：It is air-cooled, liquid is cold, Phase cooling etc., wherein, the cold scheme of liquid has the coefficient of heat transfer
The features such as height, cooling effect are good, pump small power consumption.In general, for the cold and hot Managed Solution of the liquid of rectangular cell, be with cold plate with
For the contact of battery forming face to achieve the purpose that heat dissipation, and for cylindrical battery, traditional cold plate can not be with cylindrical battery
Forming face contacts, it usually needs design is jacket structured preferably to be radiated with realizing.Authorization Notice No. is in CN 206236763U
State's patent provides a kind of lithium-ion-power cell group liquid cooling pipe road device, which is a metallic support, is set in stent
Battery settling hole, battery is put into hole to be contacted with metallic support forming face, to realize heat management.
However, in the cold scheme of existing liquid for cylindrical battery, it is disadvantageous in that, when people's setting is jacket structured
Jacket structured and entire liquid cooling system weight issue is had ignored, the excessive battery pack that will reduce of liquid cooling system quality accounting compares energy
Amount, so as to shorten the course continuation mileage of electric vehicle.
Invention content
In order to overcome the technical deficiency that liquid cooling system quality accounting is excessive in the cold scheme of existing liquid, make batteries of electric automobile packet
Lightweight, the present invention propose a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system, program energy
In the case where battery maximum temperature and the temperature difference are effectively controlled, the quality accounting of liquid cooling system in itself is reduced so that battery
Packet lightweight increases the course continuation mileage of electric vehicle.
In order to achieve the above object, specific technical solution is as follows：
A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system, including set above and below battery bracket,
The battery pack and battery control unit being fixed between the battery bracket, the battery pack include the cylinder of several ranks distribution
Shape battery, the top and bottom of the battery bracket are fixedly installed liquid collecting plate and lower liquid collecting plate, the adjacent circle respectively
The hollow thermally conductive sheet contacted with cylindrical battery face is provided between cylindrical battery, the upper interface of the hollow thermally conductive sheet connects under
Mouth is connected respectively with upper liquid collecting plate and lower liquid collecting plate.
Preferably, the hollow thermally conductive sheet is provided centrally with liquid cold passage, both ends be respectively arranged with interface and under
Interface, middle part are evenly arranged with several cambered surfaces to fit with cylindrical battery circumferential wall.
Preferably, the material of the hollow thermally conductive sheet is aluminium, and the upper liquid collecting plate and lower liquid collecting plate material therefor are work
Engineering plastics, including polyamide PA, polycarbonate, ABS plastic or PC/ABS.
Preferably, the upper liquid collecting plate is mainly mutually closely fastened to be internal for cooling down by the first cover board and the first bottom plate
The integral structure of fluid flowing；The lower liquid collecting plate master is mutually closely fastened by the second cover board and the second bottom plate and is supplied to be internal
The integral structure of cooling fluid flowing；The upper liquid collecting plate is provided with first fluid entrance and first fluid outlet, under described
Liquid collecting plate is provided with second fluid entrance and second fluid outlet.
Preferably, it is several first inflow regions and several that the first bottom plate of the upper liquid collecting plate, which is equipped with inside division,
First interval-the flow-guiding structure in the first outflow region, described first flows into regional connectivity first fluid entrance and is uniformly arranged
There is the first inlet opening of interface on hollow thermally conductive sheet described in several coupling parts, the first outflow regional connectivity first fluid goes out
Mouth and the first fluid holes for being evenly arranged with interface on several remaining described hollow thermally conductive sheet of connection；
It is several second inflow regions and several second outflow areas that second bottom plate of the lower liquid collecting plate, which is equipped with inside division,
Second interval in domain-flow-guiding structure, described second flows into regional connectivity second fluid entrance and is evenly arranged with several connections
Second inlet opening of the part hollow thermally conductive sheet lower interface, it is described second outflow regional connectivity described in second fluid outlet and
It is even to be provided with several the second fluid holes for connecting remaining hollow thermally conductive sheet lower interface.
Preferably, first inlet opening, the first fluid hole by soft rubber stopper respectively with the upper interface phase of hollow thermally conductive sheet
Connection；Second inlet opening, the second fluid hole are connected by lower interface of the soft rubber stopper respectively with hollow thermally conductive sheet.
Preferably, the back side of upper and lower two battery brackets is fixedly installed nickel sheet, one end and the battery pack phase of the nickel sheet
Connection, the other end are connected with battery control unit.
Preferably, first interval-flow-guiding structure and the S-shaped detour arrangement of the second interval-flow-guiding structure.
Preferably, first inflow region and the first outflow region are spaced apart along upper liquid collecting plate length direction, the
One inlet opening is uniformly arranged in column in each first inflow region, and first fluid hole is uniformly arranged on each first in column
It flows out in region；
Second inflow region and the second outflow region are spaced apart along lower liquid collecting plate length direction, and the second inlet opening is in row
Formula is uniformly arranged in each second inflow region, and second fluid hole is uniformly arranged in column in each second outflow region.
This programme is in multiple hollow thermally conductive sheets with battery pack fits, liquid cold passage cooling stream in the hollow thermally conductive sheet of each column
Flowing to for body is identical, and the flow direction of liquid cold passage cooling fluid is opposite in hollow thermally conductive sheet between adjacent two row.
Preferably, several through-holes, bolt are provided through on the battery bracket, upper liquid collecting plate and the lower liquid collecting plate
It is combined across through-hole with nut by battery bracket, upper liquid collecting plate, lower liquid collecting plate, battery pack and battery control unit, hollow heat conduction
Piece is connected as a single entity.
Compared with existing technical solution, the advantageous effect that the present invention is brought has：
1st, the thermally conductive sheet designed by the cold scheme of the liquid is evenly distributed in the gap of each battery of battery pack, in battery pack
Portion, each battery ambient have several thermally conductive sheets to be contacted with its face so that the heat dissipation of each battery more effectively and uniformly, reach compared with
Good heat management performance；
2nd, in the cold scheme of the liquid, cooling working medium parallel stream is moved, and is had the characteristics that pressure drop is small, is reduced the pump needed for heat management system
Power consumption；In addition, designed using bidirectional flow, i.e., between every row's thermally conductive sheet, in cooling duct cooling fluid flow direction on the contrary, this into
One step reduces the maximum temperature of battery pack, reduces maximum temperature difference；
3rd, the thermally conductive sheet design that the cold scheme of the liquid uses can be so that the arrangement of battery pack be more compact, and thermally conductive sheet is more frivolous, this
Be conducive to mitigate the weight of liquid cooling system, meanwhile, replace conventional metals collection using good mechanical properties and heat-resisting engineering plastics
Liquid plate or liquid cooling plate, this is conducive to the weight for further mitigating liquid cooling system, the ratio energy of power battery pack is improved, so as to increase
The course continuation mileage of electric vehicle.
Description of the drawings
Fig. 1 is that a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system of the embodiment of the present invention is whole
Body structure diagram.
Fig. 2 is a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system point of the embodiment of the present invention
Solve schematic diagram.
Fig. 3 is that a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system of the embodiment of the present invention is led
Fin structure schematic diagram.
Fig. 4 is a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system electricity of the embodiment of the present invention
Pond group and thermally conductive sheet matching relationship schematic diagram.
Fig. 5 is on a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system of the embodiment of the present invention
Liquid collecting plate structural decomposition diagram.
Fig. 6 is under a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system of the embodiment of the present invention
Liquid collecting plate structural decomposition diagram (overturning 180 degree).
Shown in figure：1- nuts；The upper liquid collecting plates of 2-；The first cover boards of 201-；The first bottom plates of 202-；203- first is spaced-leads
Flow structure；204- first flows out region；The first inflow regions of 205-；The first inlet openings of 206-；The first fluid holes of 207-；208-
One fluid inlet；209- first fluids export；3- soft rubber stoppers；4- nickel sheet；5- battery brackets；The hollow thermally conductive sheets of 6-；601- liquid is cold
Channel；The upper interfaces of 602-；603- cambered surfaces；604- lower interfaces；7- battery packs；Liquid collecting plate under 8-；The second cover boards of 801-；802- second
Bottom plate；803- second is spaced-flow-guiding structure；804- second flows out region；The second inflow regions of 805-；The second inlet openings of 806-；
The second fluid holes of 807-；808- second fluid entrances；809- second fluids export；9- bolts；10- battery control units；11- leads to
Hole.
Specific embodiment
For the purpose of the present invention, technical solution is more clearly understood, with reference to the attached drawing of the present invention to institute of the present invention
The technical solution of use is described：
As depicted in figs. 1 and 2, a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system, including upper and lower
The battery bracket 5 of setting, the battery pack 7 being fixed between the battery bracket 5 and battery control unit 10, the battery pack 7
Include 18650 cylindrical batteries of 72 ranks distributions, the top and bottom of the battery bracket 5 are fixedly installed collection respectively
Liquid plate 2 and lower liquid collecting plate 8 are provided with the hollow thermally conductive sheet contacted with cylindrical battery face between the adjacent cylindrical battery
6, the upper interface 602 and lower interface 604 of the hollow thermally conductive sheet 6 are connected respectively with upper liquid collecting plate 2 and lower liquid collecting plate 8, described
Battery bracket 5, be provided through several through-holes 11 on upper liquid collecting plate 2 and the lower liquid collecting plate 8, bolt 9 pass through through-hole 11 with
Nut 1 is combined battery bracket 5, upper liquid collecting plate 2, lower liquid collecting plate 8, battery pack 7 and battery control unit 10, hollow thermally conductive sheet 6
It is connected as a single entity, cooling fluid is the ethylene glycol mixture of 50% water/50%.
As shown in figure 3,6 material of hollow thermally conductive sheet is 6063 aluminium, it is provided centrally with liquid cold passage 601, both ends
It is respectively arranged with interface 602 and lower interface 604, middle part is uniformly arranged that there are three the circumferential walls with the cylindrical battery to be affixed
The cambered surface 603 of conjunction, the radius of curvature of cambered surface 603 are 9mm, and 603 height of cambered surface is 50mm ~ 65mm, the cooling in hollow thermally conductive sheet 6
A diameter of 3mm of channel.
Fig. 4 illustrates the matching relationship of hollow thermally conductive sheet 6 and battery pack 7, inside battery pack 7, each hollow thermally conductive sheet 6
Forming face is matched with three batteries to contact, and achievees the effect that efficient, Homogeneouslly-radiating.
The upper liquid collecting plate 2 and lower 8 material therefor of liquid collecting plate are PC/ABS materials, and PC/ABS materials have mechanical performance
The features such as good, heat-resisting, fire-retardant.
As shown in figure 5, the upper liquid collecting plate 2 is mainly by the first cover board 201 and the first bottom plate 202 mutually close fasten
The integral structure that inside is moved for cooling fluid stream, while it is additionally provided with first fluid entrance 208 and first fluid outlet 209；
In addition, it is several first inflow regions 205 and several that the first bottom plate 202 of the upper liquid collecting plate 2, which is equipped with inside division,
First interval-the flow-guiding structure 203 in one outflow region 204, first interval-flow-guiding structure, 203 S-shaped detour arrangement.
First inflow region 205 and the first outflow region 204 is spaced apart along upper 2 length direction of liquid collecting plate, the first inlet opening
206 are uniformly arranged in column in each first inflow region 205, and first fluid hole 207 is uniformly arranged on each in column
In one outflow region 204；First inflow region 205 connects first fluid entrance 208 and is evenly arranged with several pass through
Described in 3 coupling part of soft rubber stopper on hollow thermally conductive sheet 6 interface 602 the first inlet opening 206, it is described first outflow region 204 connects
It logical first fluid outlet 209 and is evenly arranged with and several interface 602 on remaining described hollow thermally conductive sheet 6 is connected by soft rubber stopper 3
The first fluid hole 207.
As shown in fig. 6, it is interior that the lower liquid collecting plate 8, which is led by the second cover board 801 and the second bottom plate 802 mutually close fasten,
The integral structure that portion is moved for cooling fluid stream, while it is additionally provided with second fluid entrance 808 and second fluid outlet 809.Separately
Outside, the second bottom plate 802 of the lower liquid collecting plate 8, which is equipped with, flows out inside division for several second inflow regions 805 and second
Second interval in region 804-flow-guiding structure 803, second interval-flow-guiding structure, 803 S-shaped detour arrangement.Described
Second inflow region 805 and the second outflow region 804 are spaced apart along lower 8 length direction of liquid collecting plate, and the second inlet opening 806 is in row
Formula is uniformly arranged in each second inflow region 805, and second fluid hole 807 is uniformly arranged on each second outflow area in column
In domain 804.Described second inflow region 805 connection second fluid entrance 808 and being evenly arranged with several is connected by soft rubber stopper 3
Second inlet opening 806 of socket part point hollow 6 lower interface 604 of thermally conductive sheet, the second outflow region 804 connect described second
Fluid outlet 809 and be evenly arranged with it is several by soft rubber stopper 3 connect remaining hollow 6 lower interface 604 of thermally conductive sheet second
Fluid hole 807.
First interval of above-described embodiment-flow-guiding structure 203 and the second interval-water conservancy diversion knot 803 have cooling fluid point
The effect of stream or confluence.In the multiple hollow thermally conductive sheets 6 coordinated with battery pack 7, liquid cold passage in the hollow thermally conductive sheet 6 of each column
Flowing to for 601 cooling fluids is identical, and the flow direction of 601 cooling fluid of liquid cold passage is opposite in hollow thermally conductive sheet 6 between adjacent two row.
The back side of upper and lower two battery brackets 5 is fixedly installed nickel sheet 4, one end and 7 phase of battery pack of the nickel sheet 4 respectively
Connection, the other end are connected with battery control unit 10.
The operation principle of above-described embodiment is：
Battery pack 7 is contacted with hollow 6 forming face of thermally conductive sheet, and during charge or discharge, the heat of generation is passed battery pack 7 with heat
The mode led is transferred to hollow thermally conductive sheet 6.
Meanwhile a part of cooling fluid enters upper liquid collecting plate 2 from first fluid entrance 208, in the first interval-flow-guiding structure
Under the action of 203, the first inflow region 205 is flowed into, and be split into a plurality of fluids, be uniformly distributed to each first fluid hole
In 206；Then, cooling fluid flows into the liquid cold passage 601 of multiple hollow thermally conductive sheets 6, cooling fluid and hollow thermally conductive sheet 6 parallel
Heat convection occurs, to take away the heat of hollow thermally conductive sheet 6, reduces the temperature of battery pack 7；Then, cooling fluid by second into
Fluid apertures 807 flows into lower liquid collecting plate 8, under the guiding of the second interval-flow-guiding structure 803, flows into the second outflow region 804, and converge
Flow for stream of fluid, in 809 outflow of second fluid outlet, the cooling fluid of outflow by pump be delivered to after external heat exchanger obtain it is cold
But, the first fluid entrance 208 of liquid collecting plate 2 is then back flowed back into, a liquid SAPMAC method is formed with this；Another part cooling stream
Body enters lower liquid collecting plate 8 from second fluid entrance 808, under the action of the second interval-flow-guiding structure 803, flows into second and flows into
Region 805, and a plurality of fluids is split into, it is uniformly distributed in each second fluid hole 806；Then, cooling fluid parallel stream
Enter the liquid cold passage 601 of each hollow thermally conductive sheet 6, with hollow thermally conductive sheet 6 heat convection occurs for cooling fluid, to take away hollow lead
The heat of backing 6 reduces the temperature of battery pack 7；Then, cooling fluid flows into upper liquid collecting plate 2 by the first inlet opening 207,
Under the guiding of one interval-flow-guiding structure 203, the first outflow region 204 is flowed into, and it is stream of fluid to converge, and is gone out in first fluid
Mouth 209 flows out.The cooling fluid of outflow by pump be delivered to external heat exchanger after cooled down, then back flow back into lower liquid collecting plate 8
Second fluid entrance 808, another liquid SAPMAC method is formed with this.
Two above recycles so that cooling fluid is flowed through parallel in the hollow thermally conductive sheet 6 of cell gap, has cooling performance
Well, the characteristics of pressure drop is small, while often between emptying heart thermally conductive sheet 6, the flow direction of cooling fluid is on the contrary, this can in liquid cold passage 601
With the temperature difference for further reducing the maximum temperature of battery pack 7, reducing battery pack 7.
It is emphasized that the protection domain that above-mentioned embodiment is not intended to limit the invention, every in the present invention
Spirit and principle within, improvement, equivalent replacement for being done etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system, including the battery branch set above and below
Frame (5), the battery pack (7) being fixed between the battery bracket (5) and battery control unit (10), battery pack (7) packet
Include the cylindrical battery of several ranks distribution, which is characterized in that the top and bottom of the battery bracket (5) are fixedly installed respectively
There are upper liquid collecting plate (2) and lower liquid collecting plate (8), be provided with what is contacted with cylindrical battery face between the adjacent cylindrical battery
Hollow thermally conductive sheet (6), the upper interface (602) and lower interface (604) of the hollow thermally conductive sheet (6) respectively with upper liquid collecting plate (2) and
Lower liquid collecting plate (8) is connected.
2. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 1, feature
It is：The liquid for being provided centrally with connecting the upper interface (602) and lower interface (604) of the hollow thermally conductive sheet (6) is cold logical
Road (601), middle part are evenly arranged with several cambered surfaces (603) to fit with cylindrical battery circumferential wall.
3. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 1 or 2, special
Sign is：The material of the hollow thermally conductive sheet (6) is aluminium, and the upper liquid collecting plate (2) and lower liquid collecting plate (8) material therefor are work
Engineering plastics, including polyamide PA, polycarbonate, ABS plastic or PC/ABS.
4. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 1, feature
It is：The upper liquid collecting plate (2) is mainly supplied by the first cover board (201) and the first bottom plate (202) mutually close fasten to be internal
The integral structure of cooling fluid flowing；The lower liquid collecting plate (8) is main by the second cover board (801) and the second bottom plate (802) phase
It is mutually close to fasten as the internal integral structure moved for cooling down fluid stream；The upper liquid collecting plate (2) is provided with first fluid entrance
(208) and first fluid outlet (209), the lower liquid collecting plate (8) are provided with second fluid entrance (808) and second fluid outlet
(809)。
5. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 4, feature
It is：
The first bottom plate (202) of the upper liquid collecting plate (2) be equipped with by inside division be several first inflow regions (205) and if
The first interval-flow-guiding structure (203) of dry first outflow region (204), first inflow region (205) connection are first-class
Body entrance (208) and the first inlet opening for being evenly arranged with interface (602) on hollow thermally conductive sheet (6) described in several coupling parts
(206), the first outflow region (204) connection first fluid exports (209) and is evenly arranged with several connect described in remaining
The first fluid hole (207) of interface (602) on hollow thermally conductive sheet (6)；
The second bottom plate (802) of the lower liquid collecting plate (8) be equipped with by inside division be several second inflow regions (805) and if
The second interval-flow-guiding structure (803) of dry second outflow region (804), second inflow region (805) connection second
Body entrance (808) and the second inlet opening for being evenly arranged with hollow thermally conductive sheet (6) lower interface (604) described in several coupling parts
(806), second outflow region (804) connect second fluid outlet (809) and be evenly arranged with several connections remaining
The second fluid hole (807) of hollow thermally conductive sheet (6) lower interface (604).
6. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 5, feature
It is：First inlet opening (206), the first fluid hole (207) are upper with hollow thermally conductive sheet (6) respectively by soft rubber stopper (3)
Interface (602) is connected；Second inlet opening (806), the second fluid hole (807) are led by soft rubber stopper (3) with hollow respectively
The lower interface (604) of backing (6) is connected.
7. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 1, feature
It is：The back side of upper and lower two battery brackets (5) is fixedly installed nickel sheet (4) respectively；One end of the nickel sheet (4) and battery pack
(7) it is connected, the other end is connected with battery control unit (10).
8. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 5, feature
It is：First interval-flow-guiding structure (203) and the S-shaped detour arrangement of the second interval-flow-guiding structure (803).
9. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 5, feature
It is：
First inflow region (205) and the first outflow region (204) are spaced apart along upper liquid collecting plate (2) length direction,
First inlet opening (206) is uniformly arranged in column in each first inflow region (205), and first fluid hole (207) is in row
Formula is uniformly arranged in each first outflow region (204)；
Second inflow region (805) and the second outflow region (804) are spaced apart along lower liquid collecting plate (8) length direction,
Second inlet opening (806) is uniformly arranged in column in each second inflow region (805), and second fluid hole (807) is in row
Formula is uniformly arranged in each second outflow region (804).
10. light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system according to claim 1, feature
It is：Several through-holes (11) are provided through on the battery bracket (5), upper liquid collecting plate (2) and the lower liquid collecting plate (8),
Bolt (9) is combined with nut (1) across through-hole (11) by battery bracket (5), upper liquid collecting plate (2), lower liquid collecting plate (8), battery pack
(7) it is connected as a single entity with battery control unit (10), hollow thermally conductive sheet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123915.XA CN108206256A (en) | 2018-02-07 | 2018-02-07 | A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123915.XA CN108206256A (en) | 2018-02-07 | 2018-02-07 | A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system |
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| CN108206256A true CN108206256A (en) | 2018-06-26 |
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|---|---|---|---|
| CN201810123915.XA Pending CN108206256A (en) | 2018-02-07 | 2018-02-07 | A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system |
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| CN109742481A (en) * | 2018-12-27 | 2019-05-10 | 大乘汽车有限公司 | A kind of battery pack liquid cooling heat exchange tube structure |
| CN109994799A (en) * | 2019-03-04 | 2019-07-09 | 南京航空航天大学 | A kind of cylindrical lithium ion battery mould group parallel type pipeline heat management device |
| CN110416657A (en) * | 2019-06-18 | 2019-11-05 | 浙江大学 | A kind of electri forklift secondary lithium battery gas-liquid coupling cooling device |
| CN110430715A (en) * | 2019-06-29 | 2019-11-08 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method of controlling electronic devices cooling liquid outlet temperature |
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| WO2020168591A1 (en) * | 2019-02-21 | 2020-08-27 | 江苏金阳光新能源科技有限公司 | Lithium ion power battery system providing ultra-wide temperature range and high safety |
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| CN114552064A (en) * | 2022-02-28 | 2022-05-27 | 重庆邮电大学 | Electric automobile lithium ion battery wraps cooling system |
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