CN109065796B - Electric automobile group battery buffer - Google Patents
Electric automobile group battery buffer Download PDFInfo
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- CN109065796B CN109065796B CN201811014659.7A CN201811014659A CN109065796B CN 109065796 B CN109065796 B CN 109065796B CN 201811014659 A CN201811014659 A CN 201811014659A CN 109065796 B CN109065796 B CN 109065796B
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- 230000003139 buffering effect Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Vibration Dampers (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery pack buffer device of an electric automobile, which effectively solves the problem of poor effect of the current battery buffer device of the electric automobile; the technical scheme includes that the battery pack is placed in an inner box, a guide pillar is arranged on the inner box, a first blind hole matched with the guide pillar is formed in the outer box, a first piston is installed in the first blind hole, a second blind hole along the radial direction of the first blind hole is formed outside the first blind hole, a second piston is installed in the second blind hole and connected with a piston rod, an arc-shaped pressing sheet is installed in the first blind hole, the piston rod is connected with the arc-shaped pressing sheet, an oil duct is communicated between the first blind hole and the second blind hole, a plurality of exhaust holes with small apertures are formed in the inner wall of the first blind hole between the first piston and an orifice, and gas in the first blind hole can be slowly exhausted through the exhaust holes; the invention has stable buffering process, can effectively buffer large and small impacts, has high upper limit of buffering force, and is safe and reliable.
Description
Technical Field
The invention relates to the field of electric automobiles, in particular to a battery pack buffering device of an electric automobile.
Background
Electric automobiles are the main direction of automobile research and development at present; as a power source of the electric automobile, harmful products cannot be generated in the chemical reaction process of the battery, the pollution is extremely low, and the energy conversion efficiency of the battery is 2-3 times higher than that of an internal combustion engine, so that the electric automobile has a good popularization prospect.
The conventional battery pack is mostly fixedly arranged in a battery box, frequent acceleration and deceleration during the running process of an automobile easily cause looseness or collision between the battery and the battery box, and the collision effect of the battery pack along with the running process of the automobile easily causes mechanical damage to the battery pack, so that the service life of the battery is reduced; particularly, when a vehicle runs at a high speed, if sudden emergency braking occurs or accidents such as high-speed rear-end collision and impact occur, the battery pack of the vehicle is more likely to generate strong impact due to huge inertia force, so that fire and even explosion accidents are caused.
The conventional battery pack buffer device of the electric automobile is mostly simple structures such as a spring or an elastic cushion, has limited buffer capacity and has a contradiction problem, and if the spring or the elastic material with small elastic coefficient is adopted, the buffer device can stably buffer small impact, but the buffer limit is exceeded when large impact occurs, so that the buffer fails; if a spring or an elastic material with a large elastic coefficient is adopted, although the buffering limit is improved, the buffering process is not stable enough due to the large rigidity, and the buffering effect on small impact is limited.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a battery pack buffer device of an electric automobile, which effectively solves the problem of poor effect of the conventional battery buffer device of the electric automobile.
The technical scheme includes that the buffer device for the battery pack of the electric automobile comprises an inner box and an outer box, the inner box and the outer box are rectangular in shape, the battery pack is placed in the inner box, the inner box is placed in the outer box and can slide left and right in the outer box, first pressure springs are mounted between the left end and the right end of the inner box and the outer box at the same end, horizontal guide pillars are arranged on the left outer wall and the right outer wall of the inner box, first blind holes capable of being matched with the guide pillars are formed in the left inner wall and the right inner wall of the outer box, a first piston capable of sliding in the blind holes is mounted in each first blind hole, a second blind hole along the radial direction of each first blind hole is formed in the side wall of the outer box, and an orifice of each; a second piston is arranged in the second blind hole, and a second pressure spring is arranged between the second piston and the bottom of the second blind hole; a piston rod is arranged on the inner side of the second piston, the piston rod extends into the first blind hole and is positioned on the outer side of the first piston, an arc-shaped pressing sheet coaxial with the first blind hole is arranged in the first blind hole, and the piston rod is connected with the arc-shaped pressing sheet and can drive the arc-shaped pressing sheet to move along the radial direction of the first blind hole; an oil duct is communicated between the first blind hole and the second blind hole, one end of the oil duct is communicated with the bottom of the first blind hole, and the other end of the oil duct is communicated with the outer side of the second piston; a plurality of groups of second blind holes, second pistons and arc-shaped pressing sheets are uniformly distributed on the outer circumference of the first blind holes;
a plurality of exhaust holes with small apertures are formed in the inner wall of the first blind hole between the first piston and the orifice, gas in the first blind hole can be slowly exhausted through the exhaust holes, and the exhaust holes are arranged along the axial direction of the first blind hole and are communicated with the outside air; the guide pillar, the first blind hole, the first piston, the second blind hole, the second piston, the arc-shaped pressing sheet and the exhaust hole form a buffer unit.
The invention has stable buffering process, can effectively buffer large and small impacts, has high upper limit of buffering force, and is safe and reliable.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a top cross-sectional view of the present invention.
Fig. 5 is an enlarged view of a portion C in fig. 4.
Figure 6 is a left side cross-sectional view of the arcuate preform in position.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the battery pack comprises an inner box 1 and an outer box 2 which are rectangular, a battery pack is placed in the inner box 1, the inner box 1 is placed in the outer box 2 and can slide left and right in the outer box 2, first pressure springs 3 are respectively arranged between the left end and the right end of the inner box 1 and the outer box 2 at the same end, horizontal guide pillars 4 are respectively arranged on the left outer wall and the right outer wall of the inner box 1, first blind holes 5 which can be matched with the guide pillars 4 are respectively arranged on the left inner wall and the right inner wall of the outer box 2, a first piston 6 which can slide in the blind holes is arranged in the first blind holes 5, second blind holes 7 along the radial direction of the first blind holes 5 are arranged on the side wall of the outer box 2, and the hole openings of the second blind holes 7 are sealed through screw plugs or; a second piston 8 is arranged in the second blind hole 7, and a second pressure spring 9 is arranged between the second piston 8 and the bottom of the second blind hole 7; a piston rod 10 is arranged on the inner side of the second piston 8, the piston rod 10 extends into the first blind hole 5 and is positioned on the outer side of the first piston 6, an arc-shaped pressing sheet 11 coaxial with the first blind hole 5 is arranged in the first blind hole 5, and the piston rod 10 is connected with the arc-shaped pressing sheet 11 and can drive the arc-shaped pressing sheet 11 to move along the radial direction of the first blind hole 5; an oil duct 12 is communicated between the first blind hole 5 and the second blind hole 7, one end of the oil duct 12 is communicated with the bottom of the first blind hole 5, and the other end of the oil duct is communicated with the outer side of the second piston 8; a plurality of groups of second blind holes 7, second pistons 8 and arc-shaped pressing sheets 11 are uniformly distributed on the outer circumference of the first blind hole 5;
a plurality of exhaust holes 13 with small apertures are formed in the inner wall of the first blind hole 5 between the first piston 6 and the orifice, gas in the first blind hole 5 can be slowly exhausted through the exhaust holes 13, and the exhaust holes 13 are arranged along the axial direction of the first blind hole 5 and are communicated with the outside air; the guide post 4, the first blind hole 5, the first piston 6, the second blind hole 7, the second piston 8, the arc-shaped pressing sheet 11 and the exhaust hole 13 form a buffer unit.
In order to ensure the buffering effect of the device on the inner box 1 and the battery pack therein, a plurality of buffering units are arranged at intervals from front to back at the same end.
For preventing that guide pillar 4 from striking first piston 6 and causing the damage, also in order to improve the sealing performance between guide pillar 4 and first blind hole 5, guide pillar 4 outer end install rubber buffer 14, rubber buffer 14 is interference fit with first blind hole 5, guide pillar 4 is clearance fit with first blind hole 5.
In order to facilitate the insertion of the guide post 4 into the first blind hole 5, the outer end of the rubber stopper 14 is provided with a chamfer.
In order to further improve the buffering effect, the outer wall of the bottom of the inner box 1 and the inner wall of the bottom of the outer box 2 are respectively provided with a first friction pad 15.
In order to make the arc-shaped pressing pieces 11 effectively hold the guide posts 4 tightly, a second friction pad 16 is installed on the inner side of each arc-shaped pressing piece 11.
The first friction pad 15 and the second friction pad 16 may be made of powder metallurgy material, asbestos-based material, paper-based material, and the like.
The inner wall of the first blind hole 5 is provided with an arc-shaped groove 17 matched with the arc-shaped pressing sheet 11, the arc-shaped pressing sheet 11 is arranged in the arc-shaped groove 17, and the arc-shaped pressing sheet 11 is connected with the piston rod 10 through threads.
In order to axially limit the first piston 6, a cross rod 18 is arranged at the bottom of the first blind hole 5 along the axis of the first blind hole, threads are arranged at two ends of the cross rod 18, a polished rod is arranged in the middle of the cross rod 18, and the first piston 6 penetrates through the cross rod 18 and can slide on the polished rod; the inner end of the cross rod 18 is screwed at the bottom of the first blind hole 5 through threads, and the outer end is screwed with a limit nut 19; the outer end of the guide post 4 is provided with a third blind hole 20 into which the cross bar 18 can be inserted.
In order to ensure the coaxiality of the guide post 4 and the first blind hole 5, a transverse guide rod 21 penetrates through the top walls of the inner box 1 and the outer box 2, and the inner box 1 can slide left and right along the guide rod 21; the guide rod 21 prevents misalignment between the guide post 4 and the first blind hole 5.
Because the oil duct 12 connecting the first blind hole 5 and the second blind hole 7 is not easy to process, a vertical hole is drilled from the outer wall of the outer box 2 to be communicated with the first blind hole 5, a transverse hole is drilled to be communicated with the second busy blind hole, the vertical hole is intersected with the transverse hole to communicate the first blind hole 5 with the second blind hole 7, and then the outer orifices of the vertical hole and the blind holes are plugged by screws or are welded to be sealed.
The installation mode of the invention is as follows:
1. firstly, the cross rod 18 is screwed into a threaded hole at the bottom of the first blind hole 5, then the first piston 6 is threaded on the cross rod 18, and then the limiting nut 19 is screwed at the outer end of the cross rod 18.
2. Penetrating a second pressure spring 9 on a piston rod 10, then installing a second piston 8 and the second pressure spring 9 in a second blind hole 7, pressing the second piston 8 inwards by using a screwdriver and the like to enable the piston rod 10 to extend into the first blind hole 5, then screwing an arc-shaped pressing sheet 11 at the lower end of the piston rod 10, and slotting the outer side of the second piston 8 to facilitate limiting by using tools such as the screwdriver and the like in order to prevent the piston rod 10 from rotating; after the arc pressing piece 11 is screwed, the second piston 8 is loosened, and the arc pressing piece 11 is completely retracted into the arc groove 17 under the action of the second pressure spring 9.
3. After the second pistons 8 and the arc-shaped pressing sheets 11 are installed, the orifices of the second blind holes 7 except the second blind hole 7 at the highest position are sealed by using plugs or end covers, then hydraulic oil is added into the orifices of the second blind holes 7 at the highest position, the hydraulic oil flows into a cavity between the first piston 6 and the bottom of the first blind hole 5 through an oil duct 12 and then flows into the other second blind holes 7 until the second blind holes 7 at the highest position are filled with the hydraulic oil, and then the second blind holes 7 are also sealed by using the plugs or the end covers.
4. The inner box 1 is arranged in the outer box 2, then the guide rod 21 penetrates into the inner box 1 and the outer box 2, and two ends of the guide rod 21 are fixed by nuts.
When the damping device is used, the outer box 2 is arranged on a chassis of an electric automobile, and a damping device such as a spring can be arranged between the bottom of the outer box 2 and the chassis to buffer the up-and-down jolts of the automobile in the running process; the battery pack is placed in the inner case 1.
In the normal driving process, along with the acceleration and deceleration of an automobile, the inner box 1 and a battery pack in the inner box can generate the phenomena of backward impact and forward impact due to inertia, at the moment, a first pressure spring 3 between the inner box 1 and the outer box 2 plays a role in buffering the inner box 1, meanwhile, a first friction pad 15 between the bottom of the inner box 1 and the bottom of the outer box 2 increases the resistance of the inner box 1 in sliding, and plays a role in buffering the inner box 1 and the battery pack in the inner box together with a plurality of first springs, so that the battery is prevented from being severely shaken to influence the internal structure of the battery due to collision or overlarge acceleration with the outer box 2; the first pressure spring 3 and the first friction pad 15 can meet the protection and buffering of the battery pack in acceleration and deceleration within a normal range when the automobile runs.
When an automobile is emergently braked in case of sudden accident, because the speed of the automobile is rapidly reduced, the inner box 1 and a battery pack in the inner box can be greatly forwards rushed due to great inertia force, the resistance of the first pressure spring 3 at the front end and the first friction pad 15 at the bottom is not enough to buffer the forward rushing of the battery pack, the large-amplitude forward rushing of the inner box 1 can enable the guide post 4 at the end part of the inner box 1 to be inserted into the first blind hole 5 corresponding to the outer box 2, and the rubber plug 14 at the outer end of the guide post 4 can be tightly attached to the inner wall of the first blind hole 5 to prevent air leakage; the air in the first blind hole 5 is extruded by the guide post 4 and is exhausted through the exhaust holes 13, the aperture of each exhaust hole 13 is very small, compared with the aperture of the first blind hole 5, the aperture of each exhaust hole 13 is 1/30-1/20 of the aperture of the first blind hole 5, so that the air in the first blind hole 5 can be exhausted only slowly through the exhaust holes 13, the air in the first blind hole 5 can generate resistance on the guide post 4 to reduce the forward-flushing force of the inner box 1, the outer wall of each guide post 4 can seal the exhaust holes 13 one by one from outside to inside along with the penetration of the guide post 4, the deeper the guide post 4 is, the fewer the exhaust holes 13 capable of exhausting are, the slower the exhaust speed is, and the larger the resistance of the air in the first blind hole 5 on the guide post 4 is until the inner box 1 stops; after the forward-stroke trend of the inner box 1 disappears, the inner box 1 returns to the original position under the action of the first pressure spring 3, the guide pillar 4 is pushed out of the first blind hole 5, and outside air enters the first blind hole 5 through the exhaust hole 13; in the same way, when the automobile rushes back the inner box 1 due to violent acceleration, the rear end guide pillar 4 and the first blind hole 5 buffer the automobile.
When the automobile has rear-end collision or front-end collision accidents during high-speed running, the automobile stops at a high speed instantly, the acceleration is higher than that during emergency braking, the inertia force of the inner box 1 is higher at the moment, the front impact is stronger, the exhaust holes 13 are completely sealed by the guide post 4 and still are not effectively braked, at the moment, the rubber plug 14 at the end part of the guide post 4 continuously rushes forwards by the guide post 4 can contact the first piston 6 and push the first piston 6 to move towards the bottom of the first blind hole 5, the first piston 6 extrudes hydraulic oil in the first blind hole 5 to enter the plurality of second blind holes 7 and extrude the plurality of second pistons 8 inwards, the plurality of second pistons 8 push the plurality of arc-shaped pressing sheets 11 to move inwards through the piston rod 10 so as to tightly hold the guide post 4, the second friction pads 16 generate friction force to brake the guide post 4, the larger the guide post 4 moves inwards, the larger the more the guide post 4 is, the holding force of the plurality of arc-shaped, on the other hand, the larger the reaction force of the first piston 6 on the guide post 4 is, the more the guide post 4 is braked completely, and the inner box 1 stops the forward stroke; after the inertia force of the inner box 1 disappears, the inner box 1 returns to the original position under the action of hydraulic pressure and the elastic force of the first pressure spring 3; when the vehicle is rear-ended, the inner box 1 is backwashed, and the plurality of buffer units at the rear end perform buffer braking on the inner box 1.
The invention has the following remarkable advantages: firstly, three-stage buffering is designed, the first pressure spring 3 and the friction pad are of a first stage, the plurality of exhaust holes 13 are of a second stage, hydraulic self-locking is of a third stage, the three-stage buffering is progressive layer by layer, resistance is gradually increased, the stability of the buffering process is ensured, the stable buffering of small impact is considered while the effective buffering and braking of large impact are ensured, and the stable buffering and braking of inertial impact of different degrees can be stably and effectively achieved; in addition, the brake resistance of the third-stage buffer is increased along with the increase of the displacement of the inner box 1, the maximum brake resistance is large, the upper limit of the buffer force is high, the buffer brake requirement during strong impact can be met, the brake process is stable, and the situation that the impact is caused by hard braking due to the fact that the brake exceeds the buffer limit cannot occur.
In conclusion, the buffer device has the advantages of stable buffer process, effective buffer for large and small impacts, high upper limit of buffer force, safety and reliability.
Claims (9)
1. The battery pack buffering device of the electric automobile comprises an inner box (1) and an outer box (2) which are rectangular in shape, and is characterized in that a battery pack is placed in the inner box (1), the inner box (1) is placed in the outer box (2) and can slide left and right in the outer box (2), first pressure springs (3) are respectively installed between the left end and the right end of the inner box (1) and the outer box (2) at the same end, horizontal guide pillars (4) are respectively arranged on the left outer wall and the right outer wall of the inner box (1), first blind holes (5) which can be matched with the guide pillars (4) are respectively formed in the left inner wall and the right inner wall of the outer box (2), a first piston (6) which can slide in each blind hole is installed in each first blind hole, a second blind hole (7) which is radial along the first blind hole (5) is formed in the side wall of the outer box (2), and an orifice of each second blind hole (7) is sealed through a plug or; a second piston (8) is arranged in the second blind hole (7), and a second pressure spring (9) is arranged between the second piston (8) and the bottom of the second blind hole (7); a piston rod (10) is installed on the inner side of the second piston (8), the piston rod (10) extends into the first blind hole (5) and is located on the outer side of the first piston (6), an arc-shaped pressing sheet (11) coaxial with the first blind hole is installed in the first blind hole (5), and the piston rod (10) is connected with the arc-shaped pressing sheet (11) and can drive the arc-shaped pressing sheet (11) to move along the radial direction of the first blind hole (5); an oil duct (12) is communicated between the first blind hole (5) and the second blind hole (7), one end of the oil duct (12) is communicated with the bottom of the first blind hole (5), and the other end of the oil duct is communicated with the outer side of the second piston (8); a plurality of groups of second blind holes (7), second pistons (8) and arc-shaped pressing sheets (11) are uniformly distributed on the outer circumference of the first blind holes (5);
a plurality of exhaust holes (13) with small apertures are formed in the inner wall of the first blind hole (5) between the first piston (6) and the orifice, gas in the first blind hole (5) can be slowly exhausted through the exhaust holes (13), and the exhaust holes (13) are arranged along the axial direction of the first blind hole (5) and are communicated with the outside air; the guide post (4), the first blind hole (5), the first piston (6), the second blind hole (7), the second piston (8), the arc-shaped pressing sheet (11) and the exhaust hole (13) form a buffer unit.
2. The battery pack buffering device for the electric vehicle as claimed in claim 1, wherein a plurality of buffering units are provided, and a plurality of buffering units at the same end are arranged at intervals in the front-rear direction.
3. The battery pack buffering device of the electric automobile according to claim 1, wherein a rubber plug (14) is installed at the outer end of the guide post (4), the rubber plug (14) is in interference fit with the first blind hole (5), and the guide post (4) is in clearance fit with the first blind hole (5).
4. The battery pack buffering device for the electric automobile as claimed in claim 3, wherein the outer end of the rubber stopper (14) is provided with a chamfer.
5. The battery pack buffering device for the electric automobile according to claim 1, wherein the first friction pads (15) are attached to the outer wall of the bottom of the inner box (1) and the inner wall of the bottom of the outer box (2).
6. The battery pack buffering device for the electric vehicle as claimed in claim 1, wherein a second friction pad (16) is installed at the inner side of each of the arc-shaped pressing pieces (11).
7. The battery pack buffering device for the electric automobile according to claim 1, wherein an arc-shaped groove (17) matched with the arc-shaped pressing piece (11) is formed in the inner wall of the first blind hole (5), the arc-shaped pressing piece (11) is arranged in the arc-shaped groove (17), and the arc-shaped pressing piece (11) is connected with the piston rod (10) through threads.
8. The battery pack buffering device of the electric automobile as claimed in claim 1, wherein a cross bar (18) is installed at the bottom of the first blind hole (5) along the axis, threads are arranged at both ends of the cross bar (18), a polish rod is arranged in the middle of the cross bar, and the first piston (6) penetrates through the cross bar (18) and can slide on the polish rod; the inner end of the cross rod (18) is screwed at the bottom of the first blind hole (5) through threads, and the outer end is screwed with a limit nut (19); the outer end of the guide post (4) is provided with a third blind hole (20) into which the cross rod (18) can be inserted.
9. The battery pack buffering device for the electric automobile according to claim 1, characterized in that a transverse guide rod (21) penetrates through the top walls of the inner box (1) and the outer box (2), and the inner box (1) can slide left and right along the guide rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014659.7A CN109065796B (en) | 2018-08-31 | 2018-08-31 | Electric automobile group battery buffer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014659.7A CN109065796B (en) | 2018-08-31 | 2018-08-31 | Electric automobile group battery buffer |
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| CN109065796A CN109065796A (en) | 2018-12-21 |
| CN109065796B true CN109065796B (en) | 2021-04-16 |
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| CN201811014659.7A Active CN109065796B (en) | 2018-08-31 | 2018-08-31 | Electric automobile group battery buffer |
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| CN115312944B (en) * | 2022-09-29 | 2023-01-06 | 宇龙汽车(辽宁)有限公司 | New energy automobile power battery damping system and damping method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2650123B1 (en) * | 1989-07-19 | 1991-09-20 | Petzl Ets | HOUSING FOR CYLINDRICAL ELECTRIC BATTERIES OF DIFFERENT DIAMETERS |
| KR102270514B1 (en) * | 2014-02-24 | 2021-06-29 | 삼성에스디아이 주식회사 | Rechargeable battery pack |
| CN105118940B (en) * | 2015-08-07 | 2017-07-21 | 苏州小蜻蜓电动车有限公司 | One kind buffering cooling battery of electric vehicle displacement structure |
| CN106410318A (en) * | 2016-09-28 | 2017-02-15 | 东莞市联洲知识产权运营管理有限公司 | Lithium battery device for new energy automobile |
| CN207338493U (en) * | 2017-11-03 | 2018-05-08 | 济宁学院 | A kind of lithium ion battery encapsulation device of leakproof |
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