CN107039704B - A kind of composite radiating type battery modules - Google Patents
A kind of composite radiating type battery modules Download PDFInfo
- Publication number
- CN107039704B CN107039704B CN201710147596.1A CN201710147596A CN107039704B CN 107039704 B CN107039704 B CN 107039704B CN 201710147596 A CN201710147596 A CN 201710147596A CN 107039704 B CN107039704 B CN 107039704B
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- bracket
- air flow
- flow chamber
- battery modules
- lower bracket
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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
- H01M10/62—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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical 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
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of composite radiating type battery modules, including cabinet and multiple single battery cores, it further include upper bracket, lower bracket, nickel sheet and air pressurizing unit, single battery core top and bottom end are connect with upper bracket and lower bracket respectively, and single battery core bottom end and nickel sheet are welded, nickel sheet has heat conductive pad, heat conductive pad contacts fitting with nickel sheet, heat conductive pad has mica sheet, mica sheet contacts fitting with heat conductive pad, is equipped with air flow chamber in lower bracket, air flow chamber is connected to air pressurizing unit, lower bracket upper surface is equipped with throttle orifice, and throttle orifice is connected to air flow chamber.Structure of the invention is compact, improve battery energy density, and realize that the heat of environment and external environment is transmitted in battery modules closing using the composite radiating mode that contact heat transfer radiator structure and throttling expansion formula air cooling radiator structure are constituted, the direct zone of action of radiating is goed deep into inside battery modules, the covering surface that radiates is big, radiating efficiency is high, and heat dissipation is more evenly.
Description
Technical field
The present invention relates to a kind of apparatus for storing electrical energy, more specifically, it relates to a kind of bottom heat radiation battery modules.
Background technique
With the development of electric car, lithium ion battery becomes an important development direction of current electric car, due to
Energy needed for automobile batteries packet is high, generally requires to be connected by thousands of a single battery cores, and the discharge current as needed for automobile is big, electricity
Core fever is serious, and very big hidden danger is caused to cell safety.In this case, how design energy density is high, heat dissipation effect
Good battery modules become the emphasis and technological difficulties of industry concern.Currently, the heat dissipation that automobile lithium ion battery packet mainly uses
Mode is liquid cooling respectively, air-cooled and natural heat dissipation, and wherein liquid cooling effect is best, but its structure is complicated, and energy density is relatively low, at
This height, and security risk is big；Air cooling effect is inferior to liquid cooling, but its heat dissipation uniformity is poor, high expensive and product closure
It is poor；Natural cooling effect is worst, and temperature is excessively high in use for battery, seriously affects the safety of battery pack and uses the longevity
Life.Radiating mode used by existing battery modules is more single, and is generally only to carry out in regional environment to battery modules
Overall heat dissipation, and heating position that cannot be different to battery modules carries out all standing and directly radiates, therefore it is uneven to radiate, and dissipates
The thermal efficiency is lower.The utility model of Publication No. CN204045697U discloses a kind of sealing liquid cooling lithium on December 24th, 2014
Ion battery packet, is applied to battery technology field, which includes: upper cover, cooling pipe, electrically connects
Mouth, battery group, lower box；Wherein, upper cover matches with lower box, is closed together on lower box, and the side wall of upper cover is equipped with
Pipe perforation；Cooling pipe is arranged in upper cover by pipe perforation, and both ends are located at upper outer side of lid；The side wall of lower box is equipped with electricity
Gas interface；Battery group is installed in lower box；One end sealing electrical connection battery group of electric interfaces.The present invention is by battery pack
It is designed to the structure being made of upper cover, lower box, cooling pipe, electric interfaces, the battery group etc. of separable production and processing,
Have the characteristics that radiating efficiency is high, protective performance is good, is readily produced assembling maintenance, is at low cost.But the invention and conventional liquid cooling
Formula battery is the same, there is that structure is complicated, and energy density is relatively low, at high cost, the big disadvantage of security risk, and radiating mode list
One, it is difficult to obtain more preferably heat dissipation effect.
Summary of the invention
Radiating mode used by existing battery modules is more single, and heat dissipation path is long, and heat dissipation uniformity is poor, heat dissipation
Efficiency is lower, in order to overcome these deficiencies, the present invention provides a kind of radiating mode is richer, heat dissipation more evenly, it is more efficient
Composite radiating type battery modules.
The technical scheme is that a kind of composite radiating type battery modules, including cabinet and multiple single battery cores, also wrap
Upper bracket, lower bracket, nickel sheet and air pressurizing unit are included, single battery core top and bottom end are connect with upper bracket and lower bracket respectively,
And single battery core bottom end and nickel sheet are welded, nickel sheet has heat conductive pad, and heat conductive pad contacts fitting with nickel sheet, and heat conductive pad has cloud
Master slice, mica sheet contact fitting with heat conductive pad, are equipped with air flow chamber in lower bracket, air flow chamber is connected to air pressurizing unit, lower bracket
Upper surface is equipped with throttle orifice, and throttle orifice is connected to air flow chamber.Upper bracket, lower bracket form single battery core and support, and make multiple lists
The connection integration of body battery core, constitutes energy density height, the good battery modules of structural strength.Nickel sheet, heat conductive pad, mica sheet successively contact
Fitting forms the higher heat conduction structure of heat transference efficiency, which carries out heat exchange with cabinet again, by single battery core
The heat that work generates is discharged to outside battery modules.At the same time, the air after pressurization is inputted air flow chamber, air-flow by air pressurizing unit
Chamber leads to external throttle orifice and is processed into smaller size, so that air flow chamber passes in and out air there are speed difference, air flow chamber is formed centainly
Air pressure, air in air flow chamber from high pressure via throttle orifice to the lower flows outside of pressure, form throttling expansion effect, stream
Air themperature out is lower than air themperature in air flow chamber, and the air-flow flowed out from throttle orifice blows to the portion of single battery core bottom end or more
Position, plays the role of cooling and heat dissipation to upper section in single battery core.There are the contacts of larger area with nickel sheet for single battery core bottom end, are suitble to
Using the radiator structure of contact heat transfer, and upper section is mostly in air encirclement in single battery core, the metal with large area
Plate does not have the direct contact of large area, is suitble to using air cooling radiator structure, therefore, this battery modules is according to own structural characteristics
Targetedly radiate with structure using the composite radiating mode that contact heat transfer and throttling expansion formula are gas-cooled, heat dissipation knot
Structure reaches hight coordinate with the connection of battery modules, support construction, merges, and battery mould is goed deep into the direct zone of action of radiator structure
Group is internal, and directly heat dissipation covering surface is improved while ensuring battery energy density, obtains heat dissipation effect faster more evenly.
Preferably, be equipped with second level heat conductive pad below mica sheet, the top surface of second level heat conductive pad, bottom surface respectively with mica sheet and
The bottom of box contact fitting.Second level heat conductive pad, mica sheet, cabinet also constitute a contact heat transfer structure, with monomer
Battery core is linked to be a complete heat-transfer path, realizes that battery modules close interior environment and the heat of external environment is transmitted.
Preferably, being equipped with aluminium flake above upper bracket, single battery core top is electrically connected with aluminium flake.Single battery core electrode is usual
Positioned at top, single battery core top is electrically connected with aluminium flake, is thus that each single battery core is integrated connection by connection conductor with aluminium flake
For battery modules.
Preferably, aluminium flake, nickel sheet are Nian Jie with upper bracket, lower bracket respectively.Aluminium flake, nickel sheet pass through bonding way and upper branch
Frame, lower bracket connection, structure is simple, easy to implement.
Preferably, upper bracket and lower bracket are equipped with the slot being adapted to single battery core, single battery core is plugged on slot
In.Single battery core, which is plugged in slot, can ensure that single battery core is bonded with upper bracket, lower bracket.
Preferably, the air flow chamber is the fenestral fabric being made of airflow channel, point that airflow channel interweaves in length and breadth
It is distributed on lower bracket between each slot, completely cuts off between air flow chamber and slot.Airflow channel is opened in the gap of slot, is taken full advantage of
The structure space of lower bracket will not damage inserting slot construction.The latticed air flow chamber being made of airflow channel can be compared with
The structure of lower bracket is adapted to well, so that radiator structure preferably incorporates in the structural framing of battery modules, it is ensured that battery modules
Structural compactness.
Preferably, lower bracket is seperated under seperated and bracket in separate structure, including bracket, seperated and bracket on bracket
The joint surface of lower fission is parallel to the top surface and bottom surface of lower bracket, and divides air flow chamber equally along the vertical profile direction of the air flow chamber.Such as
Fruit uses the lower bracket of integral structure, and processing airflow channel difficulty is larger between slot, when especially slot is dislocatedly distributed, uses
Conventional drilling technique is almost unable to complete the processing of latticed air flow chamber, then processed using separate structure it is extremely convenient, can be
The seperated semi-open airflow channel corresponding, equal sized with position is opened up on joint surface seperated under bracket respectively on bracket, so
Seperated split again under seperated and bracket, that is, may make up complete air flow chamber on after-poppet.
Preferably, being equipped with pressure sensor in the air flow chamber.It is empty since the air inlet outlet of air flow chamber is there are speed difference
If gas booster continuous running air-flow cavity pressure can incrementally increase, it is unfavorable for keeping the pressure difference inside and outside air flow chamber to stablize, easily
Unnecessary hardware damage is caused because air-flow cavity pressure is excessive, setting pressure sensor can supervise air flow chamber internal pressure
Survey, if pressure is excessive can feedback air booster break-off, keep air flow chamber inside and outside differential pressure stablize, thus stablize play
Heat spreading function.
Preferably, single battery core is Nian Jie with upper bracket and lower bracket.By viscous between single battery core and upper bracket, lower bracket
Bonding strength can be further strengthened by connecing.
The beneficial effects of the present invention are:
Improve heat dissipation effect.The present invention is using contact heat transfer radiator structure and throttling expansion formula air cooling radiator structure structure
At composite radiating mode realize battery modules close in the heat of environment and external environment transmit, the direct zone of action of radiating is goed deep into
Inside battery modules, heat dissipation covering surface is big, and radiating efficiency is high, and heat dissipation is more evenly.
It is compact-sized, improve battery energy density.Radiator structure and the structural framing of battery modules closely melt in the present invention
It closes, keeps battery module structure compact, improve battery energy density.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
In figure, 1- single battery core, 2- upper bracket, 3- aluminium flake, 4- lower bracket, 5- nickel sheet, 6- heat conductive pad, 7- mica sheet, 8-
Second level heat conductive pad, 9- air pressurizing unit.
Specific embodiment
The invention will be further described for specific embodiment with reference to the accompanying drawing.
Embodiment:
As shown in Figure 1, a kind of bottom heat radiation battery modules, including cabinet and 288 single battery cores 1, it further include upper bracket
2, lower bracket 4, aluminium flake 3, nickel sheet 5 and air pressurizing unit 9, upper bracket 2 and lower bracket 4 are made of plastic, upper bracket 2 and lower branch
Frame 4 is equipped with the slot being adapted to single battery core 1, and 1 top of single battery core and bottom end are plugged on upper bracket 2 and lower bracket 4 respectively
Slot in, then use glue sticking.Aluminium flake 3 is set to 2 top of upper bracket and 1 top of single battery core and aluminium flake 3 pass through welding aluminium wire shape
At electrical connection, nickel sheet 5 is set to 4 lower section of lower bracket and 1 bottom end of single battery core and nickel sheet 5 are welded by resistance-welding process, under nickel sheet 5
Equipped with heat conductive pad 6, heat conductive pad 6 contacts fitting with nickel sheet 5, and heat conductive pad 6 has mica sheet 7, and mica sheet 7 is contacted with heat conductive pad 6
Fitting.Be equipped with second level heat conductive pad 8 below mica sheet 7, the top surface of second level heat conductive pad 8, bottom surface respectively with mica sheet 7 and the cabinet
Bottom contact fitting.Air flow chamber is equipped in lower bracket 4, air flow chamber is connected to air pressurizing unit 9, and 4 upper surface of lower bracket is equipped with hole
Diameter is the throttle orifice of 0.2mm, and throttle orifice is connected to air flow chamber.The air flow chamber is the fenestral fabric being made of airflow channel,
What airflow channel interweaved in length and breadth is distributed on lower bracket 4 between each slot, completely cuts off between air flow chamber and slot.Lower bracket 4 is seperated knot
Seperated under seperated and bracket on structure, including bracket, joint surface seperated under seperated and bracket is parallel to the top of lower bracket 4 on bracket
Face and bottom surface, and divide air flow chamber equally along the vertical profile direction of the air flow chamber.Pressure sensor is equipped in the air flow chamber.Air increases
9 shell of depressor is made with aluminium alloy convenient for the heat dissipation of compressed air.
Nickel sheet 5, heat conductive pad 6, mica sheet 7, second level heat conductive pad 8 and the bottom of box successively contact fitting, form heat transmitting effect
The higher contact heat transfer structure of rate is linked to be a complete heat-transfer path with single battery core 1, can be efficiently by single battery core
The heat that 1 work generates is discharged to outside battery modules.Meanwhile air pressurizing unit 9 is defeated by the pipeline of sealing by the air after pressurization
Enter air flow chamber, air flow chamber leads to external throttle orifice and is processed into smaller size, so that there are speed difference, gas for air flow chamber disengaging air
Stream chamber forms certain air pressure, the air in air flow chamber from high pressure via throttle orifice to the lower flows outside of pressure, form section
Bulking effect is flowed, the air themperature of outflow is lower than air themperature in air flow chamber, and the air-flow flowed out from throttle orifice blows to monomer electricity
Cooling and heat dissipation is played the role of to upper section in single battery core in position more than core bottom end.Pressure sensor carries out air flow chamber internal pressure
Monitoring, if pressure is excessive can 9 break-off of feedback air booster, keep air flow chamber inside and outside differential pressure stablize, thus stablize
Play heat spreading function.
Claims (9)
1. a kind of composite radiating type battery modules, including cabinet and multiple single battery cores (1), it is characterized in that further including upper bracket
(2), lower bracket (4), nickel sheet (5) and air pressurizing unit (9), single battery core (1) top and bottom end respectively with upper bracket (2) and under
Bracket (4) connection, and single battery core (1) bottom end and nickel sheet (5) are welded, nickel sheet (5) has heat conductive pad (6), heat conductive pad (6) with
Nickel sheet (5) contact fitting, heat conductive pad (6) have mica sheet (7), and mica sheet (7) contacts fitting, lower bracket with heat conductive pad (6)
(4) air flow chamber is equipped in, air flow chamber be connected to air pressurizing unit (9), lower bracket (4) upper surface equipped with throttle orifice, throttle orifice and
Air flow chamber connection.
2. composite radiating type battery modules according to claim 1, it is characterized in that it is thermally conductive to be equipped with second level below mica sheet (7)
It pads (8), top surface, the bottom surface of second level heat conductive pad (8) contact fitting with mica sheet (7) and the bottom of box respectively.
3. composite radiating type battery modules according to claim 1, it is characterized in that aluminium flake (3) are equipped with above upper bracket (2),
Single battery core (1) top and aluminium flake (3) are welded.
4. composite radiating type battery modules according to claim 3, it is characterized in that aluminium flake (3), nickel sheet (5) respectively with upper branch
Frame (2), lower bracket (4) bonding.
5. composite radiating type battery modules according to claim 1, it is characterized in that being set on upper bracket (2) and lower bracket (4)
There is the slot being adapted to single battery core (1), single battery core (1) is plugged in slot.
6. composite radiating type battery modules according to claim 5, it is characterized in that the air flow chamber is by airflow channel structure
At fenestral fabric, what airflow channel interweaved in length and breadth is distributed on lower bracket (4) between each slot, air flow chamber and slot interval
Absolutely.
7. composite radiating type battery modules according to claim 1, it is characterized in that lower bracket (4) is separate structure, including
It is seperated under seperated and bracket on bracket, on bracket joint surface seperated under seperated and bracket be parallel to lower bracket (4) top surface and
Bottom surface, and divide air flow chamber equally along the vertical profile direction of the air flow chamber.
8. composite radiating type battery modules according to any one of claim 1 to 7, it is characterized in that being set in the air flow chamber
There is pressure sensor.
9. composite radiating type battery modules according to any one of claim 1 to 7, it is characterized in that single battery core (1) with
Upper bracket (2) and lower bracket (4) bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710147596.1A CN107039704B (en) | 2017-03-13 | 2017-03-13 | A kind of composite radiating type battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710147596.1A CN107039704B (en) | 2017-03-13 | 2017-03-13 | A kind of composite radiating type battery modules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107039704A CN107039704A (en) | 2017-08-11 |
| CN107039704B true CN107039704B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710147596.1A Active CN107039704B (en) | 2017-03-13 | 2017-03-13 | A kind of composite radiating type battery modules |
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| CN (1) | CN107039704B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181862A (en) * | 2017-12-05 | 2018-06-19 | 重庆文理学院 | Ultracapacitor manages system |
| CN109616598A (en) * | 2018-12-31 | 2019-04-12 | 常州车之翼动力科技有限公司 | 36V dynamic lithium battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058100B (en) * | 2012-09-06 | 2018-11-13 | 阿提瓦公司 | Frame has the battery component of dispensing block |
| CN204167420U (en) * | 2014-10-24 | 2015-02-18 | 北汽福田汽车股份有限公司 | A kind of lithium ion battery and lithium ion battery bag |
| CN105552268B (en) * | 2016-01-30 | 2018-06-22 | 华南理工大学 | It is a kind of to fill gelled multiple exit batteries of electric automobile air cooling battery case |
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2017
- 2017-03-13 CN CN201710147596.1A patent/CN107039704B/en active Active
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Address after: 6 / F, Xintu building, 451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province, 310051 Patentee after: Zhejiang Zero run Technology Co.,Ltd. Address before: 6 / F, Xintu building, 451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province, 310051 Patentee before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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