CN108767151A - A kind of power battery module and liquid cooling system integral structure - Google Patents
A kind of power battery module and liquid cooling system integral structure Download PDFInfo
- Publication number
- CN108767151A CN108767151A CN201810413247.4A CN201810413247A CN108767151A CN 108767151 A CN108767151 A CN 108767151A CN 201810413247 A CN201810413247 A CN 201810413247A CN 108767151 A CN108767151 A CN 108767151A
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- China
- Prior art keywords
- module
- inlet
- battery modules
- battery
- liquid
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Classifications
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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
- 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
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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
- H01M10/65—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
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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
- H01M10/65—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
-
- 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
Abstract
The invention discloses a kind of power battery modules and liquid cooling system integral structure, including battery modules and module frame, the battery modules are formed by multiple single battery core parallel arrangeds, battery modules are placed in module frame, cooling chamber is equipped in the module frame, inlet and liquid outlet are equipped on the outer wall of module frame, inlet and liquid outlet connect with cooling chamber；Baffle is equipped in the inlet and liquid outlet, the baffle is cone, and the cone of baffle is arranged outwardly.The configuration of the present invention is simple, good cooling results.
Description
Technical field：
The present invention relates to a kind of power battery modules and liquid cooling system integral structure.
Background technology：
With popularizing for electric vehicle, one of the core technology of power battery as electric vehicle is by more and more extensive
Concern.Power battery pack needs have higher output voltage and output power as the power plant of electric vehicle.Therefore, it moves
Power battery pack is usually made up of multiple battery modules connection in series-parallel.Wherein, battery modules are equally passed through by multiple single battery cores
Connection in series-parallel forms.Currently, the development with electric vehicle and people's life and work demand, power battery pack must usually have big times
Rate is safely and efficiently charged and discharged performance.Power battery will produce a large amount of heat during big multiplying power charge or discharge and lead
Single battery core and battery modules temperature is caused to steeply rise.Battery core temperature is excessively high, and battery charging and discharging performance drastically declines.Meanwhile electricity
Pond temperature is excessively high will to cause battery failure, burning even to explode, and endanger electric vehicle safety and driver and passenger's security of the lives and property.
Safe and efficient power battery thermal management technology is premise and the guarantee that power battery pack provides output.
Currently, common power battery thermal management technology has：Air-cooled heat management, liquid-cooled heat management and refrigerant direct-cooling type
Heat management.Wherein, power battery pack is more universal using liquid-cooled method.The i.e. cooling working medium of liquid-cooled heat management is cold by exchanging heat
A kind of heat transfer technology that plate takes away the heat that battery generates during the work time.Cold plate arrangement has in module bottom cloth
It sets, module side arrangement and the big face paste of battery close the modes such as cold plate.Liquid-cooled heat management system is usually two sets with battery modules
Independent system needs battery modules cooling system and other electrical systems in battery pack assembling process while being installed into battery
Babinet.Since the weight and battery modules of battery modules and the cooperation required precision of cold plate make the assembling of liquid-cooled battery pack
Journey is relatively complicated, and installation effectiveness is low, and cost of labor is relatively high.In addition, liquid-cooled heat management is usually in battery modules one
Face is exchanged heat (such as：Bottom exchanges heat, end face heat exchange or big face heat exchange), heat exchange efficiency is low, and single battery core temperature uniformity is poor,
Battery core charge-discharge performance is poor.
Invention content：
The present invention is to provide a kind of power battery module and liquid cooling system to solve the above-mentioned problems of the prior art
Entity structure.
The technical solution adopted in the present invention has：A kind of power battery module and liquid cooling system integral structure, including electricity
Pond module and module frame, the battery modules are formed by multiple single battery core parallel arrangeds, and battery modules are placed in module frame, institute
It states and is equipped with cooling chamber in module frame, be equipped with inlet and liquid outlet on the outer wall of module frame, inlet and liquid outlet and cooling
Chamber connects；
Baffle is equipped in the inlet and liquid outlet, the baffle is conical, and the cone court of baffle
Outer setting.
Further, the outer wall of the module frame is equipped with lifting lug.
The present invention has the advantages that：
1) battery modules of the present invention and liquid cooling system are integrated, and liquid cooling system runner is in battery modules end plate and side
Intralamellar part.Heat production of the power battery in charge and discharge process can simultaneously be radiated by module side, end face and bottom surface, increased and changed
Hot face while enhanced heat exchange, increases the temperature uniformity of battery in cooling procedure.
2) module is combined into one with liquid cooling system, in power battery pack while reducing power battery pack complexity
Portion vacate bigger can arrangement space, be conducive to improve power battery pack energy density.
3) module is combined into one with liquid cooling system, and the assembling cooperation for eliminating battery modules in the prior art and liquid cooling plate is asked
Fixture etc. needed for topic and installation cooperation, simplifies power battery pack assembling procedure, saves assembly cost.
4) in the present invention, coolant liquid inlet and outlet are respectively positioned on module endplate root.On the one hand, which simplifies electricity
Pond is bundled into the lifting of module during group；On the other hand, coolant liquid inlet and outlet are conducive to below module end plate in battery pack
The arrangement of cooling line reduces cooling line complexity.
5) coolant liquid inlet and outlet are flowed through above module to ensure and are flowed through under module below module end plate in the present invention
The consistency of Fang Liudong, by the working medium of plate runner on the downside of module after reaching outlet end plate inner flow passage, after upgoing flow passages again
With flow through upside plate runner working medium converge, ensure upside plate runner in working medium in the plate runner of downside power pressure it is consistent
Property, to improve the uniformity on module top and lower part cooling.
6) module bottom plate has lightening hole, can be conducted heat by bottom box battery case by increasing heat conductive pad reinforcing battery modules.
This programme is to meet battery modules light-weighted while strengthening the heat dissipation effect of module.
7) module coolant liquid inlet and outlet use baffle water conservancy diversion and import and export local resistance loss to reduce coolant liquid, reduce cold
But total system pressure loses, to reduce cooling system energy consumption.
8) lifting lug is U-typed lifting lug on the end plate of module both ends, and lifting lug welding position is staggered with end plate inner flow passage position, keeps away
Exempt from runner position end plate stress concentration, ensures the structural strength of end plate.
Description of the drawings：
Fig. 1 is battery modules schematic diagram；
Fig. 2 is the structural schematic diagram of module frame in the present invention；
Fig. 3 is battery fluid cold runner structure and Working fluid flow schematic diagram；
Fig. 4 is import and export flow-guiding structure schematic diagram；
Fig. 5 is the double upgoing flow passages structural domain Working fluid flow schematic diagrames of import；
Fig. 6 is Fig. 4 enlarged plan views.
Wherein:
1- Positive Poles, 2- cathode poles, 3- module end plates, 4- lifting lugs, 5- inlets, 6- module epipleurals, 7 battery cores,
8- module lower side panels, 9- module inner panels, 10- module bottom plates, 11- liquid outlets, 12- import upgoing flow passages, the upsides 13- plate runner,
Plate runner on the downside of 14-, 15- export downgoing flow passage, and 16- exports upgoing flow passages, 17- baffles.
Specific implementation mode：
The present invention will be further described below with reference to the drawings.
As shown in Figures 1 to 6, a kind of power battery module of the present invention and liquid cooling system integral structure, including battery mould
Group and module frame, the battery modules are formed by 7 parallel arranged of multiple single battery cores, and battery modules are placed in module frame, described
Be equipped with cooling chamber in module frame, be equipped with inlet 5 and liquid outlet 11 on the outer wall of module frame, inlet 5 and liquid outlet 11 with
Cooling chamber connects；Baffle 17 is equipped in inlet 5 and liquid outlet 11, the baffle 17 is conical, and baffle
17 cone is arranged outwardly.
The outer wall for stating module frame is equipped with lifting lug 4.
There is interconnected cavity runner inside module end plate 3 and side plate.Cavity runner is by each end plate and side plate and module
Inner panel coordinates.There is cooling working medium inlet and outlet below the end plate of module both ends.
In the cooling system course of work, cooling working medium enters from module one end inlet 5, flows to import upstream respectively
Plate runner 14 on the downside of road 12 and both sides.Module two is flowed to respectively again when cooling working medium reaches at the top of runner in input end upgoing flow passages
Plate runner 13 on the upside of side, finally flows to outlet end end plate inner flow passage.Working medium on the downside of both sides in plate runner is flowing into outlet end end
The laggard inlet/outlet end upgoing flow passages 16 of plate inner flow passage mix laggard inlet/outlet end downlink with the working medium that module both sides epipleural flows into
Runner 15 simultaneously flows out module through liquid outlet 11.Bosher's matter mobility status is as shown in Figure 3.Single battery is put into side by side in module frame
And it is bonded with module end plate, side plate and bottom plate or is fitted closely by heat conductive pad.The heat that battery generates in charge and discharge process
Pass through conduction heat transfer to module end plate, side plate and bottom plate.Cooling working medium is flowing through end plate and side plate inner flow passage process summarizes and passes through
Heat convection takes heat out of battery modules, to achieve the effect that battery core cools down.In the present invention, directly fit with battery core or
The position being bonded by heat conductive pad is cooling position, and module cooling position has bottom, upper and lower side and two end faces, module cold
But area is big, and temperature uniformity is high.
In cooling inlet and outlet, since runner is vertical pivoting angle, cooling work can be deposited when flowing through inlet and outlet
In larger local resistance loss.To reduce the excessive problem of inlet and outlet local resistance loss, in inlet and go out liquid
Mouth is internal to increase " class circular cone " type baffle, plays the role of water conservancy diversion drainage into and out cooling working medium, reduces
Drag losses at this.Inlet and liquid outlet water conservancy diversion situation are as shown in figure 4, " class circular cone " type baffle curved surface is hyperboloid.
In the present invention, under the premise of meeting modular structure strength and stiffness, repeated hole is reduced at module bottom plate both ends, is reduced
Module weight improves power battery pack energy density.Heat conductive pad can be increased at bottom plate lightening hole, strengthen module to Battery case
Heat transfer, strengthen battery modules cooling effect.
Module end plate 3 and side plate (6 and 8) form for double-layer structure, in end plate and side plate and module with flow path groove
Plate collectively constitutes closed inner flow passage space.Module bottom plate 10 is provided with lightening hole.Lower side panel is L-shaped structure, with support
Module internal battery core.U-typed lifting lug 4 is respectively welded in module both ends end plate, is used for the lifting of module, lifting lug welding position and inside
The stagger arrangement of runner position avoids end plate stress concentration at runner.It is respectively coolant liquid inlet 5 and liquid outlet below the end plate of both sides
11, there are two " class circular cone " type baffles 17 in inlet and liquid outlet, and as shown in Fig. 4, baffle is one with module inner panel
Body structure.Coolant liquid enters from inlet, flows to plate runner 14 and import upgoing flow passages 12, downside plate runner on the downside of module respectively
Interior coolant liquid enters the laggard inlet/outlet upgoing flow passages of outlet end plate inner flow passage 16.Coolant liquid in import upgoing flow passages enters upper
Side plate runner 13 finally enters outlet end plate inner flow passage and converges into inlet/outlet downstream with the cooling working medium exported in upgoing flow passages
Module is flowed out through liquid outlet 11 in road 15.
On the basis of embodiment 1, to strengthen the heat exchange with battery modules of working medium in end plate inner flow passage, cooling Working fluid flow
Situation is as shown in Fig. 5.Inlet end plate inner flow passage uses one-to-two structure, cooling working medium to flow to battery modules both sides respectively,
It is divided into two again respectively in battery modules both sides, a part of fluid flows to plate runner on the downside of module, and a part of fluid flows to end plate
Import upgoing flow passages 12 flow to plate runner on the upside of battery modules both sides through the coolant liquid in the upgoing flow passages of both sides respectively again.It is other
The structures such as flow passage structure and end plate side plate are consistent with embodiment 1.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people in field of the present invention
It for member, can also make several improvements without departing from the principle of the present invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (2)
1. a kind of power battery module and liquid cooling system integral structure, including battery modules and module frame, the battery modules
It is formed by multiple single battery cores (7) parallel arranged, battery modules are placed in module frame, it is characterised in that：It is set in the module frame
Have cooling chamber, be equipped with inlet (5) and liquid outlet (11) on the outer wall of module frame, inlet (5) and liquid outlet (11) with it is cold
But chamber connects；
Baffle (17) is equipped in the inlet (5) and liquid outlet (11), the baffle (17) is conical, and water conservancy diversion
The cone of block (17) is arranged outwardly.
2. power battery module as described in claim 1 and liquid cooling system integral structure, it is characterised in that：The module frame
Outer wall be equipped with lifting lug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413247.4A CN108767151B (en) | 2018-05-03 | 2018-05-03 | Power battery module and liquid cooling system integrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413247.4A CN108767151B (en) | 2018-05-03 | 2018-05-03 | Power battery module and liquid cooling system integrated structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108767151A true CN108767151A (en) | 2018-11-06 |
| CN108767151B CN108767151B (en) | 2021-06-22 |
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ID=64009477
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810413247.4A Active CN108767151B (en) | 2018-05-03 | 2018-05-03 | Power battery module and liquid cooling system integrated structure |
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| Country | Link |
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| CN (1) | CN108767151B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552053A (en) * | 2021-09-08 | 2022-05-27 | 万向一二三股份公司 | High-integration-level battery pack |
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Patent Citations (7)
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| CN205036593U (en) * | 2015-10-15 | 2016-02-17 | 山东双轮股份有限公司 | High -efficient clog -free sewage cutting pump |
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| CN106641349A (en) * | 2016-11-29 | 2017-05-10 | 福建工程学院 | Streamline type fluid unidirectional flowing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552053A (en) * | 2021-09-08 | 2022-05-27 | 万向一二三股份公司 | High-integration-level battery pack |
| CN114552053B (en) * | 2021-09-08 | 2023-09-05 | 万向一二三股份公司 | High-integration battery pack |
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| Publication number | Publication date |
|---|---|
| CN108767151B (en) | 2021-06-22 |
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