CN108615831A - A kind of cylindrical battery module and its welding method - Google Patents
A kind of cylindrical battery module and its welding method Download PDFInfo
- Publication number
- CN108615831A CN108615831A CN201810235193.7A CN201810235193A CN108615831A CN 108615831 A CN108615831 A CN 108615831A CN 201810235193 A CN201810235193 A CN 201810235193A CN 108615831 A CN108615831 A CN 108615831A
- Authority
- CN
- China
- Prior art keywords
- deflector
- support cylinder
- cell support
- battery module
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of cylindrical battery module and its welding methods.Battery module includes upper cover plate, outline border, inlet, liquid outlet, import deflector, outlet deflector, cell support cylinder, lower cover, cylindrical battery.The same side of outline border is equipped with inlet and liquid outlet, import and export deflector is fitted in respectively in two opposite insides of outline border, several deflector holes are distributed on deflector, and import and export deflector is connected to form water tank water guiding system with liquid inlet and outlet and deflector hole respectively；Cell support cylinder is arranged in bottom end cover successively, is inserted into the slot of outline border after the completion of arrangement, and upper cover plate is installed, and single cylindrical battery peripheral hardware heat conductive insulating lasso is placed in cell support cylinder；Structure increases the contact area of fluid and battery, enhances heat exchange between the two, enhances the structural strength connected between cell support cylinder, improves the safety of battery module integral sealing, extends the service life of battery system, improves the safety of battery system.
Description
Technical field
The present invention relates to the cylindric power battery fields of hybrid vehicle or pure electric automobile, and in particular to Yi Zhongyuan
The design and its welding method of column battery modular structure.
Background technology
Increasing in environmental problems such as energy crisis, global warming, environmental pollutions, electric vehicle is increasingly
As the developing direction of future automobile.With going deep into for electric vehicle research, a critical component of the battery as electric vehicle
It is increasingly becoming the hot spot of research, and the quality of battery performance is then a key factor of Development of Electric Vehicles.
The principal element for influencing battery has charge-discharge magnification, charge and discharge blanking voltage, shelves condition, temperature in use etc., this
Several factors mutually restrict, and influence each other.But for temperature in use, power battery optimum working temperature is generally 20 DEG C -40
DEG C, too high or too low temperature can have an impact battery performance and its service life.Battery will produce heat in charge and discharge process,
The accumulation of heat can cause the degeneration and failure of battery, can also cause to burn when serious.Therefore, effective heat pipe is carried out to battery
It manages particularly important.
Existing battery thermal management generally uses the modes such as Natural Heat Convection, air blast cooling heat dissipation, liquid radiating.Wherein
Liquid radiating mode is much larger than the specific heat capacity of air due to the specific heat capacity of liquid, and smaller flow can take away larger heat,
With higher cooling efficiency.Existing many new-energy automobiles are all made of liquid-cooling heat radiation mode and carry out heat management as battery system
Scheme.Existing liquid cooling thermal management scheme is compared, the best structure of cooling efficiency is cellular liquid cooling apparatus, however, for
Cellular liquid cooling apparatus, due to need to process in the upper and lower cover plates of the liquid cooling apparatus it is several in cellular arrangement for fixing
The presence of the circular hole of cylindrical battery support tube, circular hole weakens the area of upper and lower cover plates, structure and geometric continuity by broken
Bad, when upper and lower cover plates effect loaded, the stress in Near Circular Hole In A region will substantially increase, and the distance between circular hole is very two-by-two
Closely, the difficulty of punching technology is increased, the intensity of structure is both reduced so that reduces the integral sealing of battery module
Safety.
Invention content
It is an object of the invention to provide a kind of cylindrical battery module and its welding method, come solve upper and lower cover plates due to
The problem of punching causes structural strength to reduce improves the safety of battery module integral sealing.
In order to reach said effect, a kind of cylindrical battery module of present invention offer and its welding.This kind of cylindrical battery
Modular structure increases the contact area of fluid and battery, enhances heat exchange between the two, has reached enhancing cell support cylinder
Between the structural strength that connects, improve the safety of battery module integral sealing, single battery or battery pack made to always work in
In within the scope of best temperature, extend the service life of battery system, and the safety of battery system can be improved.
The structure of cylindrical battery module designed by the present invention includes lower cover, outline border, inlet, liquid outlet, import
Deflector, outlet deflector, cell support cylinder, upper cover plate, cylindrical battery.Inlet, liquid outlet are respectively symmetrically assemblied in outer
On frame same side；Import deflector, outlet deflector are respectively assembled in two opposite insides of outline border, the import and export
It is distributed with several deflector holes on deflector, and import and export deflector is connected to liquid inlet and outlet and deflector hole and to form water tank and lead respectively
Water system；Wherein, cell support cylinder is arranged in bottom end cover successively, is inserted into the slot of outline border after installation is complete, is finally pacified
Load onto cover board；Single column battery peripheral hardware heat conductive insulating lasso is placed in cell support cylinder, knot among the cell support cylinder
Between each other there are channel for fluid flow, entire battery module packs the barrel of structure.
Further, the barrel of the cell support cylinder is good (metal) material of thermal conductivity.
Further, the structure of the cell support cylinder is：Upper and lower ends are hexagonal cylindrical structure, and centre is cylindric knot
Structure.
Further, the height of the battery module, can be identical, slightly higher or slightly lower compared with the height of cell support cylinder,
In order to along the positioning of short transverse and be stepped up to battery module using the device that matches.
Further, the size with quantity of the cell support cylinder can be designed according to the size and number of required battery.
Further, the edge position of the battery module uses laser welding, to realize that the edge sealing of the battery module welds
It connects.
Further, the entirety of the battery module is welded using wicking.
Further, when cell support cylinder arrangement, cell support cylinder and the above, the lower lid and cell support cylinder mutually it
Between there are the soldereds within 0.2mm.
Further, inlet, liquid outlet are all made of laser welding mode and are respectively welded on outline border two sides.
Further, import deflector, outlet deflector are all made of laser filling wire welding mode and are respectively symmetrically welded on outside
In two opposite insides of frame.
It is hexagonal cylindrical structure that cell support barrel structure, which is fabricated to upper and lower ends, in the present invention, and centre is cylindric knot
Structure.Relative maturity, usually used cold-punching mould are manufactured the manufacturing process using cold punching technology, also have other systems certainly
Technique is made to may be used.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is cylindrical battery module overlooking structure diagram.
Fig. 2 is A-A vertical sectional views in Fig. 1；
Fig. 3 is the upper cover plate structure schematic diagram of cylindrical battery module；
Fig. 4 is the lower cover plate structure schematic diagram of cylindrical battery module；
1- upper cover plates；2- lower covers；3- outline borders；4- inlets；5- import deflectors；6- cell support cylinders；7- heat conduction is exhausted
Edge lasso；8- cylindrical batteries；9- deflector holes；10- soldereds；11- exports deflector；12- liquid outlets.
Specific implementation mode
The embodiment of the present invention is as shown in Figure 1, 2, 3.
As shown in Figure 1, 2, 3, one end of a kind of cylindrical battery module, including outline border 3, the outline border 3 is equipped with inlet
4, the other end is equipped with liquid outlet 12, and the import deflector 5, outlet deflector 11 are fitted in respectively in opposite two of outline border 3
Several deflector holes 9 are distributed in side, on deflector, the cell support cylinder 6 is arranged in successively in bottom end cover 2, is inserted after the completion of arrangement
In the slot for entering outline border 3, upper cover plate 1 is installed, 8 peripheral hardware heat conductive insulating lasso 7 of cylindrical battery is placed in cell support cylinder 6.
For the barrel of 6 intermediate structure of cell support cylinder between each other there are channel for fluid flow, the cylindrical battery module is close
Package fills, and the arrangement form of the inlet 4 and liquid outlet 12 is unrestricted.
The barrel of the cell support cylinder is good (metal) material of thermal conductivity.And the structure of cell support cylinder is：On
Lower both ends are hexagonal cylindrical structure, and centre is cylindrical-shaped structure.
It is smooth on the outside of the heat conductive insulating lasso, to be packed into battery cavities, while can avoid in dismounting cell to electricity
Pond damages.
The size of the cell support cylinder can be designed with quantity according to the size and number of required battery；The battery
The arrangement of support tube is unrestricted in cylindrical battery module.
The edge position of the battery module uses laser welding；
The entirety of the battery module is welded using wicking, and in water tank top and bottom, weld is uniformly coated with scaling powder, then
Water tank is immersed into soldering pond, water tank another side scaling powder is coated into again after upper tin is uniform, then carry out wicking welding, made after the completion
It welds water tank to stand, waits for water tank natural cooling.
When the cell support cylinder arrangement, cell support cylinder stays between each other with the above, the lower lid and cell support cylinder
The soldered for having 0.2mm ensure that the integrally-built leakproofness of battery module.
The inlet, liquid outlet are all made of laser welding mode；The import deflector, outlet deflector are all made of sharp
Light filler wire welding mode.
When the cell support barrel structure processing.Relative maturity, usually used cold-punching mould use cold punching to manufacturing process
Pressure technique is manufactured, other manufacturing process can also be used and be processed.
When being cooled down to battery, the evaporator that can be used in refrigeration system cools down liquid by refrigerant,
Heat exchanger can also be used to freeze to liquid by air-cooled, and then cooling battery, and add liquid reserve tank in systems, used
Circulating pump driving liquid circulates in battery apparatus.
The kind of liquid is unlimited, the preferential working medium for selecting thermal coefficient larger, can increase changed with battery in this way
Thermal effect.
Claims (10)
1. a kind of cylindrical battery module, it is characterised in that：Structure includes that lower cover, outline border, inlet, liquid outlet, import are led
Flowing plate, outlet deflector, cell support cylinder, upper cover plate, cylindrical battery：Inlet, liquid outlet are respectively assembled at outline border both sides
On face；Import deflector, outlet deflector are respectively assembled in two opposite insides of outline border, on the import and export deflector
Several deflector holes are distributed with, and import and export deflector is connected to form water tank water guiding system with liquid inlet and outlet and deflector hole respectively；
Wherein, cell support cylinder is arranged in bottom end cover successively, is inserted into the slot of outline border after installation is complete, is finally installed upper cover
Plate；Single column battery peripheral hardware heat conductive insulating lasso is placed in cell support cylinder, the cylinder of the cell support cylinder intermediate structure
Between each other there are channel for fluid flow, entire battery module packs wall.
2. module according to claim 1, which is characterized in that the barrel of the cell support cylinder is metal material.
3. module according to claim 1, which is characterized in that the structure of the cell support cylinder is：Upper and lower ends are six sides
Shape column structure, centre are cylindrical-shaped structure.
4. module according to claim 1, which is characterized in that the height phase of the height of the battery module and cell support cylinder
Than, it can be identical, slightly higher or slightly lower, in order to along the positioning of short transverse and be added to battery module using the device to match
Tightly.
5. module according to claim 1, which is characterized in that the size of the cell support cylinder can be according to required electricity with quantity
The size and number in pond design.
6. module according to claim 1, which is characterized in that the edge position of the battery module uses laser welding, with
Realize the edge sealing welding of the battery module.
7. module according to claim 1, which is characterized in that the entirety of the battery module is welded using wicking.
8. module according to claim 1, which is characterized in that when cell support cylinder is arranged, cell support cylinder and the above, the lower lid
Between and cell support cylinder there are the soldereds within 0.2mm between each other.
9. module according to claim 1, which is characterized in that inlet, liquid outlet are all made of laser welding mode and weld respectively
It is connected on outline border two sides.
10. module according to claim 1, which is characterized in that import deflector, outlet deflector are all made of wire filling laser welding
Mode is connect respectively symmetrically to be welded in two opposite insides of outline border.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235193.7A CN108615831A (en) | 2018-03-21 | 2018-03-21 | A kind of cylindrical battery module and its welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235193.7A CN108615831A (en) | 2018-03-21 | 2018-03-21 | A kind of cylindrical battery module and its welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108615831A true CN108615831A (en) | 2018-10-02 |
Family
ID=63658548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810235193.7A Pending CN108615831A (en) | 2018-03-21 | 2018-03-21 | A kind of cylindrical battery module and its welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108615831A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449311A (en) * | 2015-12-31 | 2016-03-30 | 北京工业大学 | Liquid heat exchange battery module structure |
| CN105655510A (en) * | 2016-03-21 | 2016-06-08 | 苏州飞宇精密科技股份有限公司 | Battery box for electric automobile |
| CN105914319A (en) * | 2016-07-01 | 2016-08-31 | 上海星历新能源科技有限公司 | Cylindrical battery module and manufacturing method |
| EP3264497A1 (en) * | 2016-06-29 | 2018-01-03 | FERRARI S.p.A. | Battery module for an electrical energy storage device for an electrically powered vehicle |
-
2018
- 2018-03-21 CN CN201810235193.7A patent/CN108615831A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449311A (en) * | 2015-12-31 | 2016-03-30 | 北京工业大学 | Liquid heat exchange battery module structure |
| CN105655510A (en) * | 2016-03-21 | 2016-06-08 | 苏州飞宇精密科技股份有限公司 | Battery box for electric automobile |
| EP3264497A1 (en) * | 2016-06-29 | 2018-01-03 | FERRARI S.p.A. | Battery module for an electrical energy storage device for an electrically powered vehicle |
| CN105914319A (en) * | 2016-07-01 | 2016-08-31 | 上海星历新能源科技有限公司 | Cylindrical battery module and manufacturing method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181002 |