CN105470426A - Battery frame tray with water cooling plate and processing method of battery frame tray - Google Patents
Battery frame tray with water cooling plate and processing method of battery frame tray Download PDFInfo
- Publication number
- CN105470426A CN105470426A CN201511002921.2A CN201511002921A CN105470426A CN 105470426 A CN105470426 A CN 105470426A CN 201511002921 A CN201511002921 A CN 201511002921A CN 105470426 A CN105470426 A CN 105470426A
- Authority
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- China
- Prior art keywords
- water
- cover plate
- cooling cover
- convex tendon
- plate
- Prior art date
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- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000003672 processing method Methods 0.000 title description 2
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 210000002435 tendon Anatomy 0.000 claims description 46
- 238000012545 processing Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000005097 cold rolling Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000005192 partition Methods 0.000 abstract 2
- 102000010637 Aquaporins Human genes 0.000 description 31
- 238000013461 design Methods 0.000 description 14
- 239000011449 brick Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 239000013585 weight reducing agent 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery frame tray with a water cooling plate. A water cooling cover plate is welded on the surface of the tray through friction stir welding, a convex rib partition plate is arranged between the water cooling cover plate and the tray, the two ends of the convex rib partition plate respectively prop against the water cooling cover and the tray, a roundabout water channel is isolated between the water cooling cover plate and the tray, the two ends of the water channel are connected with a water inlet nozzle and a water outlet nozzle, a plurality of water channel convex ribs are arranged in the water channel and distributed in parallel, and an intermediate cross beam is fixedly arranged at the middle of the water cooling cover plate and used for positioning a battery pack. The battery frame tray has the advantages that an integrated structure of the water cooling plate and the battery pack has relatively high structural strength and relatively high rigidity, a few parts of the structure are required, and the process step is simplified.
Description
Technical field
The present invention relates to a kind of power brick integrated with cooled plate.
Background technology
The lightweight requirements of new-energy automobile to car load is more and more higher, and the lightweight of vehicle body seems more and more important concerning new-energy automobile.Wherein the lightweight of new forms of energy battery pack occupies very large proportion in whole body lightening.The light-weight design of battery pack mainly comprises the light-weight design of battery and the light-weight design of battery frame and cooled plate, because new-energy automobile needs more breakthrough and research and development in battery capacity research and development, and the comparatively difficulty so the lightweight of battery seems.The light-weight design of battery frame and cooled plate is then relatively easy, and therefore the Main way of whole battery pack light-weight design is loss of weight battery frame and cooled plate.
A subject matter of the design needs solution of battery pack is exactly the heat dissipation problem of battery, and the heat dissipation design about battery pack in the industry cycle has two kinds of modes at present: a kind of employing air cooling way, another kind of employing water-cooling pattern.The advantage that air cooling way has simplicity of design easy to process, but air cooling way needs to adopt unlimited or half open design, is therefore unfavorable for water proof and dust proof requirement.And battery pack generally needs the water proof and dust proof grade reaching IP67, and the water proof and dust proof grade reaching IP67 just needs the Seal Design of battery frame.The Seal Design of battery frame brings the heat dissipation problem that another problem is exactly battery, and therefore water-cooling pattern well solves sealing and the heat dissipation problem of battery frame, and another water-cooled has higher radiating efficiency than air-cooled.It will become the Main way of cell stack designs.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of battery frame integrated design scheme with water cooling function, this scheme had both alleviated the weight of whole power brick, also simplify the processing technology step of product.The water proof and dust proof class requirement of IP67 can also be met simultaneously.
To achieve the above object of the invention, a kind of battery frame pallet with cooled plate is provided, described tray surface welds water-cooling cover plate by friction stir welding, two ends are had respectively against the convex tendon dividing plate of water-cooling cover plate and pallet between described water-cooling cover plate and pallet, roundabout water channel is isolated between water-cooling cover plate and pallet, water channel two ends connect water inlet water nozzle and delivery port water nozzle, also have the water channel convex tendon of some parallel distributions, be fixed with the middle beam of locating batteries group in the middle part of water-cooling cover plate in water channel.
Preferably, described water channel convex tendon and convex tendon dividing plate are shaped on pallet by gravitational casting, and described water-cooling cover plate lower surface is resisted against on convex tendon dividing plate.
Described water water-cooling cover plate and convex tendon separator glue connect; Or described water-cooling cover plate is welded by friction stir welding with convex tendon dividing plate.
Another kind of optimal way, described water channel convex tendon and convex tendon dividing plate are shaped on water-cooling cover plate by extruding, and convex tendon dividing plate is resisted against on the upper surface of pallet.
Water-cooling cover plate is welded on pallet.
Preferably, described bottom bracket, water-cooling cover plate and middle beam all adopt aluminum alloy materials.
Process the method with the battery frame pallet of cooled plate, comprise
Gravity is adopted to pour into the step that monoblock cast mode processes battery frame pallet;
Water-cooling cover plate adopts the step of cold rolling system aluminium plate processing;
The water channel that water-cooling cover plate and convex tendon are formed adopts the step of monolithic extruded processing and forming;
The step that friction stir welding welding manner is fixing is used between water-cooling cover plate and bracket;
The step that water channel convex tendon top and water-cooling cover plate coordinate is by the step of CNC machine-shaping.
Described water channel convex tendon and convex tendon dividing plate and pallet integral casting forming, described water-cooling cover plate adopts structure glue bonding mode be connected with water channel convex tendon and convex tendon dividing plate top or adopt friction stir welding welding manner to be connected with water channel convex tendon and convex tendon dividing plate top.
Or described water-cooling cover plate adopts extruded aluminium section extrusion modling, and one-body molded water channel convex tendon and convex tendon dividing plate, described water-cooling cover plate is welded on pallet.
Preferably, middle beam adopts extruded aluminium section extrusion modling.
The present invention devises a kind of cooled plate support holder structure integrated with power brick, namely cooled plate refers to water-cooling cover plate, water channel central dividing plate is set between produces water channel by water-cooling cover plate and power brick base of frame pallet integral structure, water-cooling cover plate structure is easily installed and be also ensure that water-cooling pattern, effectively can solve battery frame sealing and the problem of dispelling the heat, and number of spare parts and procedure of processing can be reduced, alleviate the weight of whole power brick.Wherein processing technology have employed the welding manner of friction stir welding, the difficult point that between Birmasil, extruding aluminium alloy, the different processing technology aluminium alloy of cold rolling aluminium alloy, friction stir welding welding procedure designs for this reason, gravitational casting or gravity is adopted to pour into the technological difficulties that the procedure of processings such as mode integral manufacturing efficiently solve different friction stir welding by CNC processes step and battery frame, cooled plate and power brick bottom bracket combine together, have both alleviated weight and also simplify processing step thus reduce cost.Make the whole framework of the power brick of fine aluminium not only lighter than steel framework, also make product cost suitable with steel framework.
The invention has the beneficial effects as follows that the structure of cooled plate and power brick integration has stronger structural strength and higher rigidity, this structural elements is few, and processing step simplifies.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the cutaway view in A-A direction in Fig. 1;
Fig. 3 is the schematic diagram of bottom tray in first embodiment of the invention;
Fig. 4 is the schematic diagram of water-cooling cover plate in first embodiment of the invention;
Fig. 5 is the structural representation of second embodiment of the invention;
Fig. 6 is the cutaway view in B-B direction in Fig. 5;
Fig. 7 is the schematic diagram of bottom tray in second embodiment of the invention;
Fig. 8 is the schematic diagram of water-cooling cover plate in second embodiment of the invention;
Wherein:
1-bottom tray 2-water-cooling cover plate 3-convex tendon dividing plate
4-middle beam
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
With a power brick for cooled plate, comprise battery frame, water-cooling cover plate 2, middle beam 4, these parts all adopt aluminium alloy, with weight reduction.Battery frame comprises bottom tray 1, and bottom tray 1 lower surface has convex tendon dividing plate 3, and the shape of water-cooling cover plate 2 is U-shaped, and both sides is used for laying the course, and middle fixing middle beam 4, for self-contained battery group.Described convex tendon dividing plate 3 two ends are respectively against water-cooling cover plate 2 and convex tendon dividing plate 3, and middle formation water channel, water channel is roundabout shape, has multiple parallel water channel convex tendon in water channel.
The connected mode of bottom tray 1, water-cooling cover plate and water channel convex tendon dividing plate 3 has two kinds, and first water channel convex tendon, water channel dividing plate and the integrated gravity-assist pouring of pallet 1 are shaping, then welding or bonding water-cooling cover plate 2, as shown in Figures 1 to 4.Adopt gravity to pour into mode integral casting forming, materials'use A356.2 aluminium alloy, water-cooling cover plate adopts cold rolling 6 to be aluminium plate, adopt punching press or laser cutting shaping, as adopted punching press, its punching press wall thickness euphotic belt needs reach wall thickness more than 80%, otherwise can affect the welding of follow-up friction stir welding.Therefore punching press needs out fine blanking die.Water channel convex tendon and water-cooling cover plate edge adopt friction stir welding integral solder shaping, adopt that structure glue is cementing is isolated into water channel between water channel convex tendon dividing plate and water-cooling cover plate, avoid side leakage to form eddy current.The step that battery tray water channel convex tendon edge and water-cooling cover plate coordinate needs CNC machine-shaping, and this technique mainly solves two problems.One in order to solve water channel cover plate and water channel fit clearance problem, excesssive gap can cause friction stir welding rosin joint, and gap is little causes assembling difficulty.Another is to remove the impact of cast aluminum-molykote composite material surface alumina oxide on stir friction welding seam quality.
Another kind of processing mode water channel convex tendon, convex tendon dividing plate 3 are body formed with 1 point, pallet, its mode is water channel convex tendon, convex tendon dividing plate 3 and water-cooling cover plate 2 add man-hour and water-cooling cover plate 2 integrated extrusion molding, then water-cooling cover plate 2 and pallet 1 is welded, as shown in Fig. 5 to Fig. 8.Other processing modes are identical.
Main parts size processing technology and key property: battery frame bottom tray: casting-deburring-CNC processing-cleaning--inspection; Water channel cover plate: blanking-punching press (laser cutting)--cleaning-inspection; Intake-outlet water nozzle: melting-extruding-timeliness-sawing-processing-cleaning--inspection; Middle beam: melting-extruding-timeliness-sawing-processing-cleaning-inspection; Battery frame bottom tray, because the weight needing to bear whole power brick and the impact be subject to thereof and vibrations, therefore not only needs it to have certain rigidity, more needs certain toughness.Therefore need to need its elongation to be more than or equal to 4% during casting; Water channel cover plate and bottom tray need to adopt friction stir welding welding, and the Weld Performance of friction stir welding welding can reach the 70%-100% of strength of parent.And the features such as it is high that it has the even weldquality of welding penetration, and technology stability is good.Therefore its intensity and sealing higher.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art can also make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modifications or replacement are all included in the application's claim limited range.
Claims (7)
1. the battery frame pallet with cooled plate, it is characterized in that, described tray surface welds water-cooling cover plate by friction stir welding, two ends are had respectively against the convex tendon dividing plate of water-cooling cover plate and pallet between described water-cooling cover plate and pallet, roundabout water channel is isolated between water-cooling cover plate and pallet, water channel two ends connect water inlet water nozzle and delivery port water nozzle, also have the water channel convex tendon of some parallel distributions, be fixed with the middle beam of locating batteries group in the middle part of water-cooling cover plate in water channel.
2. the battery frame pallet with cooled plate according to claim 1, is characterized in that, described water channel convex tendon and convex tendon dividing plate are shaped on pallet by gravitational casting, and described water-cooling cover plate lower surface is resisted against on convex tendon dividing plate.
3. the battery frame pallet with cooled plate according to claim 2, is characterized in that, described water water-cooling cover plate and convex tendon separator glue connect.
4. the battery frame pallet with cooled plate according to claim 2, it is characterized in that, described water-cooling cover plate is welded by friction stir welding with convex tendon dividing plate.
5. the battery frame pallet with cooled plate according to claim 1, is characterized in that, described water channel convex tendon and convex tendon dividing plate are shaped on water-cooling cover plate by extruding, and convex tendon dividing plate is resisted against on the upper surface of pallet.
6., according to the arbitrary described battery frame pallet with cooled plate of claim 1 to 5, it is characterized in that, described bottom bracket, water-cooling cover plate and middle beam all adopt aluminum alloy materials.
7. processing as arbitrary in claim 1 to 5 as described in the method for the battery frame pallet with cooled plate, it is characterized in that: comprise
Gravity is adopted to pour into the step that monoblock cast mode processes battery frame pallet;
Water-cooling cover plate adopts the step of cold rolling system aluminium plate processing;
The water channel that water-cooling cover plate and convex tendon are formed adopts the step of monolithic extruded processing and forming;
The step that friction stir welding welding manner is fixing is used between water-cooling cover plate and bracket;
The step that water channel convex tendon top and water-cooling cover plate coordinate is by the step of CNC machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002921.2A CN105470426A (en) | 2015-12-28 | 2015-12-28 | Battery frame tray with water cooling plate and processing method of battery frame tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002921.2A CN105470426A (en) | 2015-12-28 | 2015-12-28 | Battery frame tray with water cooling plate and processing method of battery frame tray |
Publications (1)
| Publication Number | Publication Date |
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| CN105470426A true CN105470426A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201511002921.2A Pending CN105470426A (en) | 2015-12-28 | 2015-12-28 | Battery frame tray with water cooling plate and processing method of battery frame tray |
Country Status (1)
| Country | Link |
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| CN (1) | CN105470426A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195821A (en) * | 2017-06-06 | 2017-09-22 | 北京新能源汽车股份有限公司 | battery case |
| CN108657559A (en) * | 2017-04-01 | 2018-10-16 | 比亚迪股份有限公司 | Battery tray and vehicle |
| CN109341372A (en) * | 2018-09-21 | 2019-02-15 | 贵州永红换热冷却技术有限公司 | A kind of frame-type cold plate and its processing method |
| CN109449329A (en) * | 2017-08-24 | 2019-03-08 | 本特勒汽车工业有限责任公司 | Battery bracket for Vehicular battery module |
| CN109461991A (en) * | 2018-11-23 | 2019-03-12 | 湖南海铝汽车工业有限公司 | A kind of new-energy automobile integral type installation Battery case |
| CN109728214A (en) * | 2017-10-30 | 2019-05-07 | 湖南科技大学 | A kind of multi-material lightweight composite structure battery box and preparation method thereof |
| CN110238368A (en) * | 2018-03-08 | 2019-09-17 | 浙江强广剑精密铸造股份有限公司 | A kind of production method of new-energy electric vehicle pond pallet |
| CN110899953A (en) * | 2019-11-12 | 2020-03-24 | 广东省焊接技术研究所（广东省中乌研究院） | Friction stir welding process for thin-wall battery tray |
| CN112762068A (en) * | 2020-12-25 | 2021-05-07 | 深圳市法拉第电驱动有限公司 | Composite connection method of water-cooled radiator |
| WO2022053487A1 (en) * | 2020-09-08 | 2022-03-17 | Webasto SE | Cooling device for power battery system and power battery system for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108657559A (en) * | 2017-04-01 | 2018-10-16 | 比亚迪股份有限公司 | Battery tray and vehicle |
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| CN109449329A (en) * | 2017-08-24 | 2019-03-08 | 本特勒汽车工业有限责任公司 | Battery bracket for Vehicular battery module |
| CN109728214B (en) * | 2017-10-30 | 2021-08-13 | 湖南科技大学 | A kind of multi-material lightweight composite structure battery box and preparation method thereof |
| CN109728214A (en) * | 2017-10-30 | 2019-05-07 | 湖南科技大学 | A kind of multi-material lightweight composite structure battery box and preparation method thereof |
| CN110238368A (en) * | 2018-03-08 | 2019-09-17 | 浙江强广剑精密铸造股份有限公司 | A kind of production method of new-energy electric vehicle pond pallet |
| CN109341372B (en) * | 2018-09-21 | 2021-04-23 | 贵州永红换热冷却技术有限公司 | Frame type cold plate and processing method thereof |
| CN109341372A (en) * | 2018-09-21 | 2019-02-15 | 贵州永红换热冷却技术有限公司 | A kind of frame-type cold plate and its processing method |
| CN109461991A (en) * | 2018-11-23 | 2019-03-12 | 湖南海铝汽车工业有限公司 | A kind of new-energy automobile integral type installation Battery case |
| CN109461991B (en) * | 2018-11-23 | 2023-09-05 | 湖南海铝汽车工业有限公司 | New energy automobile integral type installation battery box |
| CN110899953A (en) * | 2019-11-12 | 2020-03-24 | 广东省焊接技术研究所（广东省中乌研究院） | Friction stir welding process for thin-wall battery tray |
| CN110899953B (en) * | 2019-11-12 | 2021-08-03 | 广东省焊接技术研究所（广东省中乌研究院） | Friction stir welding process for thin-wall battery tray |
| WO2022053487A1 (en) * | 2020-09-08 | 2022-03-17 | Webasto SE | Cooling device for power battery system and power battery system for vehicle |
| CN112762068A (en) * | 2020-12-25 | 2021-05-07 | 深圳市法拉第电驱动有限公司 | Composite connection method of water-cooled radiator |
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