CN103367670A - Lightweight battery box body for electric automobile and manufacture method thereof - Google Patents
Lightweight battery box body for electric automobile and manufacture method thereof Download PDFInfo
- Publication number
- CN103367670A CN103367670A CN2013102887941A CN201310288794A CN103367670A CN 103367670 A CN103367670 A CN 103367670A CN 2013102887941 A CN2013102887941 A CN 2013102887941A CN 201310288794 A CN201310288794 A CN 201310288794A CN 103367670 A CN103367670 A CN 103367670A
- Authority
- CN
- China
- Prior art keywords
- box body
- manufacture method
- battery box
- base plate
- electric automobile
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000001962 electrophoresis Methods 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 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
- 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
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000779 smoke Substances 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
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lightweight battery box body for an electric automobile and a manufacture method thereof. The battery box body comprises a frame and a base plate fixedly arranged on the frame. The manufacture method of the lightweight battery box body comprises the following steps of: taking cast aluminum 102 as a raw material for casting the frame, and forming a workblank of the frame by means of gravity casting; clamping the frame into a numerically-controlled machine tool, and machining, drilling and holing an installing surface; placing the base plate into the frame, and welding the base plate onto the frame by means of friction stir welding; correcting the shape of the battery box body; and carrying out surface treating and coating on the battery box body by means of electrophoresis machining. The lightweight battery box body and the manufacture method thereof have the beneficial effects that the battery box body is made from the aluminum, so that the weight of the battery box body can be obviously reduced, the integrality, the impact resistance and the surrender resistance of the battery box body can be preferably improved, the machining precision is high, the product batch consistency is high, and the lightweight battery box body can be conveniently changed and interchanged; the cost can be further reduced due to the simple technological process.
Description
Technical field
The present invention relates to electric automobile and make the field, relate in particular to lightweight battery casing and the manufacture method thereof of electric automobile.
Background technology
Along with expanding economy, people's environmental protection concept promotes gradually, and energy-saving and emission-reduction have become social consensus.Be accompanied by being widely used of the outstanding pure electric automobile of environmental protection speciality, the processing of electric automobile battery box also becomes technical barrier anxious to be captured in the industry thereupon.Battery box of pure electric vehicle, except holding all battery core administrating systems, also to bear the deadweight of battery case itself and the bump of the foreign matters such as the vibration under the automobile high-speed motion state and sandstone, substitute simultaneously the chassis of conventional electric automobile, need battery case water-tight performance good.How weight reduction and then the flying power that improves automobile become the developing direction of battery case combination property in the situation of proof strength and sealing.
In the prior art, the battery case of processing in early stage all is the mode that adopts panel beating or punch process, the defectives such as this type of battery case ubiquity weight lays particular stress on, processing technology is complicated, precision can't guarantee, consistency is poor, the production cycle is long, intensity difference, sealing are poor, this all defective causes great inconvenience to the manufacturing of product, simultaneously the security performance of pure electric automobile is caused a hidden trouble.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of lightweight battery casing and manufacture method thereof of electric automobile, and the lightweight battery casing of producing by this manufacture method has lightweight, whole impact resistance and the strong characteristics of anti-surrender ability.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of manufacture method of lightweight battery casing of electric automobile is provided, and this Battery case comprises framework and base plate, and its manufacturing step comprises:
Adopting cast aluminium 102 is the cast raw material of described framework, by the blank of gravitational casting shaping frame;
The hole is processed and bore, attacked to described framework clamping in Digit Control Machine Tool, to installed surface;
Described base plate is packed in the described framework, by friction rabbling welding base plate is welded on the framework;
Profile to described Battery case is proofreaied and correct;
By electrophoresis processing described Battery case is carried out surface treatment and application.
Wherein, the wall thickness of the described framework by the gravitational casting moulding is at least 6 millimeters.
Wherein, the hole can be processed and bore, attack all installed surfaces to described Battery case clamping behind Digit Control Machine Tool, just by clamped one time.
Wherein, the material of described base plate is the aviation aluminium.
Wherein, the thickness of described base plate is 2～3 millimeters.
Another technical solution used in the present invention is: a kind of lightweight battery casing of electric automobile is provided, and described Battery case comprises framework and the base plate that is fixed on the framework, and the manufacture method of this Battery case is the manufacture method described in the technique scheme.
Since the boundary dimensions of Battery case large (boundary dimensions is about 1750*1320mm) so that the casting area is large, external shape and interior type complex structure cause wall unevenness even, need bear dynamic high load capacity (needing under the about 250kg state of load the vehicle body parts GB vibration-testing by tool national authentication qualification), sealing property requires high (needing the IP67 degree of protection), local accuracy's requirement height, has higher requirement in the selection of material.After repeatedly analysis and checking to multiple material, the technician finds that the Battery case that casts out by cast aluminium 102 and cast aluminium 104 can both reach preferably performance, but the casting fluidity of finding again cast aluminium 104 in actual production is relatively poor, sand holes are more on the blank of moulding, percent defective is higher than cast aluminium 102, and the present invention finally adopts cast aluminium 102 to be cast raw material.According to casting manufacturability, determined that under light-weighted prerequisite the wall thickness of Battery case is at least 6mm, and inner installation site and structure have been adjusted, reserve allowance in the high position of required precision and be convenient to following process.At least the wall thickness of thick 6mm far is thicker than the average wall thickness of conventional sheet metal box body 1.5mm, has improved greatly anti-impact force and the intensity of Battery case.But because the density of cast aluminium 102 only is 2.77g/cm
3, far below iron plate 7.85g/cm
3Density, and to the adjustment of installation site, Battery case inside and structure, so the Battery case that produces in the present invention has still reached the purpose of loss of weight.
And in order further to reach more light-weighted order, cast part of the present invention includes only the frame part of Battery case, this is because Battery case casting amount is large, limited by casting technique, the larger wall thickness of working (finishing) area is just thicker, otherwise can lack material and cause product rejection, therefore confirm wall thickness at least the framework of 6mm can guarantee in the situation of sufficient intensity that base plate adopts the thick aviation aluminium of 2～3mm directly to be welded on the framework in addition.Again because the welding performance of cast aluminium 102 is relatively poor, and aluminium heat conduction is fast so deflection is larger under the normal welding mode, can cause the product distortion distortion, and dry joint, rosin joint, solder skip very easily occur and cause the product poor sealing, and welding quality can't guarantee.Therefore, the welding manner employing at framework and base plate there is no used friction rabbling welding in the industry.Friction rabbling welding is mainly used in the welding at aviation such as aircraft, some positions of rocket at present, also be applied in the shipbuilding, have the following advantages than traditional welding: 1, microscopic structure variation in welding point heat affected area is little, and residual stress is lower, and welding work pieces is difficult for shape; 2, can once finish the welding of longer weld seam, heavy in section, diverse location; 3, the convenient realization of operation process mechanization, automation, equipment is simple, and energy consumption is low, and effect is high, requires low to operating environment; 4, need not to add welding wire, need not weld front oxide film dissolving during the weldering aluminium alloy, the gas that do not need protection, cost is low; But the material of 5 welding heat crack-sensitivities is fit to the foreign material welding, good seal performance; 6, welding process safety, pollution-free, smoke dust, radiationless.
And in follow-up processing, by the Digit Control Machine Tool that has than high manufacturing accuracy installed surface and the mounting hole site of product are carried out comprehensive secondary operations, can further improve the precision of product.
The invention has the beneficial effects as follows: adopt Aluminum alloy frame casting and aviation aluminium base plate to make Battery case, also help its impact resistance and the anti-surrender ability of improving when significantly alleviating its weight, machining accuracy and product in batches consistency are high, are convenient to install and exchange; In addition, the technological process of comparatively simplifying can also reduce cost.
Description of drawings
Fig. 1 is the structure chart of the lightweight battery casing of electric automobile.
The main element symbol description:
100, Battery case; 1, framework; 2, base plate.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized purpose and effect, below in conjunction with execution mode and cooperate that accompanying drawing is detailed to give explanation.
See also Fig. 1, present embodiment is a kind of lightweight battery casing 100 of electric automobile, and this Battery case 100 comprises framework 1 and base plate 2, and the material of described base plate 2 is the aviation aluminium, and its thickness is 2～3 millimeters.The manufacture method of described Battery case 100 comprises following steps:
Adopting cast aluminium 102 is the cast raw material of described framework 1, and by the blank of gravitational casting shaping frame 1, the wall thickness of this blank is at least 6 millimeters, and leaves allowance;
The hole is processed and bore, attacked to described framework 1 clamping in Digit Control Machine Tool, to all installed surfaces in clamped one time;
Described base plate 2 is packed in the described framework 1, by friction rabbling welding base plate 2 is welded on the framework 1;
Profile to described Battery case 100 is proofreaied and correct;
By electrophoresis processing described Battery case 100 is carried out surface treatment and application.
When making the Battery case of same vehicle, the sheet metal box body that present embodiment is produced with respect to usual manner has following progress:
1, lightweight: the box weight of present embodiment manufacturing is 32kg, the about 60kg of sheet metal box body;
2, high leakproofness: the casing of present embodiment manufacturing has the degree of protection above IP67, and sheet metal box body then only has the IP56 degree of protection;
3, high strength: at XY direction 1.5G, Z direction 3G, under the vibration-testing environment of frequency 300Hz, the casing that present embodiment is made non-cracking after 8 hours, sheet metal box body ruptured after 4 hours;
4, work simplification: removed these 2 links that may produce than high tolerance of frame welding and bending, Effective Raise Product Precision and consistency are avoided the framework torsional deformation of sheet metal component, and the production mechanization degree is high;
5, cost: be lower than sheet metal box body about 20% by every cost price of method of the present invention electrogenesis in next life pond casing.
Above test data of experiment all comes from the inspection center of national authentication.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. the manufacture method of the lightweight battery casing of an electric automobile is characterized in that, described Battery case comprises framework and base plate, and its manufacturing step comprises:
Adopting cast aluminium 102 is the cast raw material of described framework, by the blank of gravitational casting shaping frame;
The hole is processed and bore, attacked to described framework clamping in Digit Control Machine Tool, to installed surface;
Described base plate is packed in the described framework, by friction rabbling welding base plate is welded on the framework;
Profile to described Battery case is proofreaied and correct;
By electrophoresis processing described Battery case is carried out surface treatment and application.
2. the manufacture method of the lightweight battery casing of electric automobile according to claim 1 is characterized in that: the wall thickness of the described framework by the gravitational casting type casting moulding is at least 6 millimeters.
3. the manufacture method of the lightweight battery casing of electric automobile according to claim 1 is characterized in that: the hole can be processed and bore, attack all installed surfaces to described Battery case clamping behind Digit Control Machine Tool, just by clamped one time.
4. the manufacture method of the lightweight battery casing of electric automobile according to claim 1, it is characterized in that: the material of described base plate is the aviation aluminium.
5. the manufacture method of the lightweight battery casing of electric automobile according to claim 4, it is characterized in that: the thickness of described base plate is 2～3 millimeters.
6. the lightweight battery casing of an electric automobile is characterized in that, described Battery case comprises framework and the base plate that is fixed on the framework, and the manufacture method of this Battery case is the described manufacture method of claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288794.1A CN103367670B (en) | 2013-07-10 | 2013-07-10 | Lightweight battery box body for electric automobile and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288794.1A CN103367670B (en) | 2013-07-10 | 2013-07-10 | Lightweight battery box body for electric automobile and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103367670A true CN103367670A (en) | 2013-10-23 |
| CN103367670B CN103367670B (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310288794.1A Expired - Fee Related CN103367670B (en) | 2013-07-10 | 2013-07-10 | Lightweight battery box body for electric automobile and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103367670B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694841A (en) * | 2016-12-30 | 2017-05-24 | 广州汽车集团股份有限公司 | Manufacturing method of battery package shell of new energy automobile and corresponding battery package shell |
| CN106784505A (en) * | 2017-02-24 | 2017-05-31 | 天津锐新昌轻合金股份有限公司 | A kind of new-energy automobile aluminum alloy battery casing and preparation method thereof |
| CN107350454A (en) * | 2017-06-19 | 2017-11-17 | 扬州兴福果机电科技有限公司 | A kind of manufacture method of the Battery case of electric automobile |
| CN108539078A (en) * | 2018-05-25 | 2018-09-14 | 铜陵市优车科技有限公司 | Battery case and its electric vehicle |
| CN108630849A (en) * | 2017-03-17 | 2018-10-09 | 本特勒汽车工业有限责任公司 | Battery bracket for vehicle |
| CN108649163A (en) * | 2018-07-19 | 2018-10-12 | 重庆博奥镁铝金属制造有限公司 | A kind of new energy car battery case |
| US10500936B2 (en) | 2017-03-23 | 2019-12-10 | Contemporary Amperex Technology Co., Limited | Battery pack protective frame and battery pack |
| CN112335105A (en) * | 2018-06-25 | 2021-02-05 | 麦格纳国际公司 | Battery frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862930A (en) * | 2010-07-26 | 2010-10-20 | 天津锐新电子热传技术股份有限公司 | Welding fixture tool of aluminum alloy battery tank body for electric automobile |
| CN102576916A (en) * | 2009-09-10 | 2012-07-11 | 贝洱两合公司 | Method for producing an energy store holder for a vehicle |
| CN202332978U (en) * | 2011-05-25 | 2012-07-11 | 天津科斯特汽车技术有限责任公司 | Power battery pack housing for electric vehicle |
-
2013
- 2013-07-10 CN CN201310288794.1A patent/CN103367670B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102576916A (en) * | 2009-09-10 | 2012-07-11 | 贝洱两合公司 | Method for producing an energy store holder for a vehicle |
| CN101862930A (en) * | 2010-07-26 | 2010-10-20 | 天津锐新电子热传技术股份有限公司 | Welding fixture tool of aluminum alloy battery tank body for electric automobile |
| CN202332978U (en) * | 2011-05-25 | 2012-07-11 | 天津科斯特汽车技术有限责任公司 | Power battery pack housing for electric vehicle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694841A (en) * | 2016-12-30 | 2017-05-24 | 广州汽车集团股份有限公司 | Manufacturing method of battery package shell of new energy automobile and corresponding battery package shell |
| CN106784505A (en) * | 2017-02-24 | 2017-05-31 | 天津锐新昌轻合金股份有限公司 | A kind of new-energy automobile aluminum alloy battery casing and preparation method thereof |
| CN108630849A (en) * | 2017-03-17 | 2018-10-09 | 本特勒汽车工业有限责任公司 | Battery bracket for vehicle |
| US10500936B2 (en) | 2017-03-23 | 2019-12-10 | Contemporary Amperex Technology Co., Limited | Battery pack protective frame and battery pack |
| CN107350454A (en) * | 2017-06-19 | 2017-11-17 | 扬州兴福果机电科技有限公司 | A kind of manufacture method of the Battery case of electric automobile |
| CN108539078A (en) * | 2018-05-25 | 2018-09-14 | 铜陵市优车科技有限公司 | Battery case and its electric vehicle |
| CN112335105A (en) * | 2018-06-25 | 2021-02-05 | 麦格纳国际公司 | Battery frame |
| CN112335105B (en) * | 2018-06-25 | 2023-12-26 | 麦格纳国际公司 | battery frame |
| CN108649163A (en) * | 2018-07-19 | 2018-10-12 | 重庆博奥镁铝金属制造有限公司 | A kind of new energy car battery case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103367670B (en) | 2015-07-15 |
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Owner name: HUBEI HAOTIAN NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XIANGYANG HUINENGTONG AUTOMOBILE TECHNOLOGY CO., LTD. Effective date: 20150409 |
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Effective date of registration: 20150409 Address after: 441004 Hubei city of Xiangyang province high tech Zone Jia Hai Industrial Park No. A50-2 Applicant after: HUBEI HAONENG NEW ENERGY Co.,Ltd. Address before: 441003 Hubei high tech Zone in Xiangfan City, Beverly Boulevard Dongjia Hai Industrial Park B32-2 Applicant before: XIANGYANG HUINENGTONG AUTOMOTIVE TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20170817 Address after: 441000 new road, automobile industry zone, hi tech Zone, Hubei, Xiangyang Patentee after: Hubei Hao Tianbo Electrical Technology Co.,Ltd. Address before: 441004 Hubei city of Xiangyang province high tech Zone Jia Hai Industrial Park No. A50-2 Patentee before: HUBEI HAONENG NEW ENERGY Co.,Ltd. |
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Granted publication date: 20150715 |