CN102837589A - Method for preventing collision and water immersion of lithium battery pack - Google Patents
Method for preventing collision and water immersion of lithium battery pack Download PDFInfo
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- CN102837589A CN102837589A CN2012103458135A CN201210345813A CN102837589A CN 102837589 A CN102837589 A CN 102837589A CN 2012103458135 A CN2012103458135 A CN 2012103458135A CN 201210345813 A CN201210345813 A CN 201210345813A CN 102837589 A CN102837589 A CN 102837589A
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- lithium cell
- cell group
- lithium battery
- battery pack
- automobile
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Abstract
The invention discloses a method for preventing collision and water immersion of a lithium battery pack. The method comprises the following steps of: adding a space for storing the lithium battery pack between an automobile carriage ceiling (7) and an automobile roof casing (5); orderly dividing the carriage ceiling into a plurality of small grids as battery boxes according to the size of the lithium battery pack, wherein each battery box can be used for accommodating one group of lithium batteries (1); respectively arranging a corrugated shock preventing and absorbing device (3) in transverse and longitudinal directions of each lithium battery so as to neutralize or prevent impact forces generated by sudden stop, sudden start or lateral shake of an automobile; paving a shock preventing soft pad (4) below the lithium battery pack of the battery box of each grid; and paving a shock preventing soft pad (2) on the lithium battery pack so as to avoid the shock and the impact formed by collision to an upper surface and a lower surface by the lithium battery pack due to bump of the automobile running on the uneven road surface. The method disclosed by the invention is suitable for water resistance and collision resistance of electrical automobiles and electric coaches taking lithium batteries as power.
Description
Technical field
The present invention relates to the method that a kind of lithium cell group anti-collision hits flooding safety, belong to lithium cell applied technical field on automobile.
Background technology
Lithium cell is made up of five key elements such as positive pole, negative pole, barrier film, electrolyte, monomer external packings.Extremely user's concern of the safety issue of lithium cell in recent years, but the safety of lithium cell is not only relevant with the cell preparation technology with the character of battery material own, and also relevant with use.
Lithium cell in use (damages as cause management system because of collision) for a certain reason and causes battery charging voltage too high, and remaining a part of lithium will be deviate from the positive pole, forms dendrite to negative terminal surface with the form deposition of lithium metal through battery acid.The dendrite diaphragm forms internal short-circuit.The main component of battery acid is a carbonic ester, and flash-point is very low, and boiling point is also lower, can burn even explode under certain condition.Overheated like the lithium cell appearance, can cause the oxidized and reduction of carbonic ester in the battery acid, produce a large amount of gases and more heat, have little time to discharge as if lacking safety valve or gas, just inner pressure of battery can sharply rise and set off an explosion through safety valve.
In the BYD battery-driven car collision case that take place the first half of this year, car body is hit back moment at quilt and is lighted raging flames, causes the occupant all to die.According to experts' analysis, when battery-driven car bumps, possibly cause the battery plus-negative plate material to break through barrier film; When energy recharges to battery fast during brake; The superelevation electric current of moment can cause battery to be short-circuited, and battery acid produces gas at high temperature by electrolysis; Internal pressure raises, and causes catching fire even blast the most at last.In addition, protective circuit possibly be collision the time broken or since speed do not have an effect as yet too soon and cause that battery is on fire.
Because bumping in the vehicle ' is the highest traffic accident of probability of occurrence; The generation of the lithium cell group explosion accident that therefore, prevents to cause because of vehicle collision, the driving safety that guarantees to be equipped with the pure electric vehicle of lithium cell group just become the auto trade urgent problem.
Lithium cell in use; Because the lithium cell group of general electronlmobil all is arranged on the base plate at automotive front or rear portion; In case it is too big to rain, and causes excess surface water dark excessively, also cause cell expansion, distortion and cracking etc. because of the immersion of lithium cell group easily; And then causing the lithium cell short circuit, heat release sets off an explosion in discharge or process of charging.
China's southern area is the rainwater prone areas; Stage in the first half of the year particularly; Often having heavy rain and come, cause the puddle, ground countless, is exactly at northern area; Also Chang Fashengyin falls heavy rain and causes vehicle under the overpass of ponding or the low-lying place situation of being flooded; For the pure electric vehicle that guarantees to be equipped with the lithium cell group and hybrid vehicle in the multiple mid-season normal operation of rainwater, protection lithium cell box main body is not destroyed by immersion, working out a kind of lithium cell group anti-collision, to hit the method ten minutes that prevents the immersion of lithium cell group important.
Summary of the invention
The objective of the invention is, according to the problem that existing lithium battery electrical automobile exists in using lithium cell, the present invention discloses a kind of lithium cell group anti-collision and hits the method that prevents the immersion of lithium cell group.
Technical scheme of the present invention is; The inventive method is that the deposit position with the lithium cell group moves on the car roof above the chassis; Promptly between automobile bodies ceiling and car roof shell, increase a space of depositing the lithium cell group, and on the position of each lithium cell, set up the anticollision facility.
The inventive method increases a space of depositing the lithium cell group between automobile bodies ceiling 7 and car roof shell 5; Size according to the lithium cell group; The compartment ceiling neatly is divided into some little lattice as battery case; Every lattice battery case can be put one group of lithium cell 1 into; And on both direction limit, all around of every lattice lithium cell, lay a shockproof Shock absorber 3 of corrugation shape, and dissolving or to prevent that automobile from suddenly stopping, produce impulsive force when anxious starting or wigwag motion, the shake cushion 4 of setting up defences in the lithium cell group lower berth of the battery case of every lattice; On the lithium cell group, also lay shockproof cushion 2, vibrations and the bump of avoiding automobile when uneven road surface goes, to cause the lithium cell group that the collision of top and bottom is formed because of jolting.
The mounting means of lithium cell group has two kinds of forms: the one, and roof hood is made case lid shape, and one side is established hinge, and one side is established buckle, and the roof hood seam adopts the sealing rubber ring sealing, guarantees that each battery case must not advance rainwater.When installation or maintenance lithium cell, start roof hood, installation or maintenance finish, and build roof hood, and are fastened by buckle.Also have a kind of installation form to be, open several windows from the automobile bodies ceiling, one of a plurality of battery cases composition are large, and the ceiling window is put into ceiling and fixing successively from the compartment, then from below compartment ceiling cover plate being built and being fixed.
The invention has the beneficial effects as follows; Because position of collision is mainly on front, back and the two sides, the left and right sides of vehicle during vehicle collision; Interval through the lithium cell group being moved to the highest ceiling of automobile position; Not only can make the lithium cell group avoid earthquake intensity maximum, primary collision that probability is the highest; And because the distortion of collision back vehicle has effectively absorbed most of energy of collision, thereby effectively reduce and directly hit when having avoided because of vehicle collision the lithium cell group explosion accident that on the lithium cell group, causes generation, guarantee to be equipped with the driving safety of the pure electric vehicle of lithium cell group.In addition; It is interval that the lithium cell group is moved to the highest ceiling of automobile position, and it is low because of the position also to have solved the lithium cell group, is prone to the problem of in ponding, being damaged or setting off an explosion by bubble; The present invention simultaneously on the structure about battery case lithium cell group or front and back; The shockproof Shock absorber of corrugation shape has been installed, has been placed shockproof cushion, prevented the impaction lesion that a plurality of direction vibrations of automobile cause lithium cell in the top and bottom of lithium cell group.
The present invention is applicable to the lithium cell to be the electronlmobil and the electrobus of power.
Description of drawings
Fig. 1 is that motor vehicle length direction of the present invention top lithium cell group is arranged scheme drawing;
Fig. 2 is that vehicle width direction of the present invention top lithium cell group is arranged scheme drawing;
Picture in picture number: the 1st, the lithium cell group; The 2nd, shockproof cushion; The 3rd, the shockproof Shock absorber of corrugation shape; The 4th, shockproof cushion; The 5th, roof hood; The 6th, the compartment; The 7th, the compartment ceiling; The 8th, bearing support.
The specific embodiment
The specific embodiment of the present invention is as shown in Figure 1.
Present embodiment adds the bearing support 8 that is enough to bear lithium cell group weight under automobile compartment top canopy; Size according to the lithium cell group; Compartment ceiling 7 neatly is divided into some little lattice as battery case, and every lattice battery case can be put one group of lithium cell 1 into, and on both direction limit, all around of every lattice, lays a shockproof Shock absorber 3 of corrugation shape; To dissolve or to prevent that automobile from anxious stopping, produce impulsive force when anxious starting or wigwag motion; The shake cushion 4 of setting up defences in the lithium cell group lower berth of the battery case of every lattice is also laid shockproof cushion 2 on the lithium cell group, avoid automobile when uneven road surface goes, to cause vibrations and the bump of lithium cell group to the collision formation of top and bottom because of jolting.Because the lithium cell group is arranged on automobile top, and the top is a leak free, can avoid the infringement of rainwater to lithium cell fully, only if whole automobile all is immersed in the water.Automobile top shell 5 can be opened from a side, and the other end is provided with hinge, and the lithium cell group is installed and the maintenance needs to adapt to, and the edge that hinge place and shell are opened is provided with the caulking gum cushion device, avoids from the hinge and the place's water inlet of cracking.
Claims (1)
1. a lithium cell group anti-collision hits the method that prevents the lithium cell immersion; It is characterized in that; Said method increases a space of depositing the lithium cell group between automobile bodies ceiling (7) and car roof shell (5), according to the size of lithium cell group, the compartment ceiling neatly is divided into some little lattice as battery case; Every lattice battery case can be put one group of lithium cell (1) into; And on both direction limit, all around of every lattice lithium cell, lay a shockproof Shock absorber of corrugation shape (3), and dissolving or to prevent that automobile from suddenly stopping, produce impulsive force when anxious starting or wigwag motion, the shake cushion (4) of setting up defences in the lithium cell group lower berth of the battery case of every lattice; On the lithium cell group, also lay shockproof cushion (2), vibrations and the bump of avoiding automobile when uneven road surface goes, to cause the lithium cell group that the collision of top and bottom is formed because of jolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103458135A CN102837589A (en) | 2012-09-18 | 2012-09-18 | Method for preventing collision and water immersion of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103458135A CN102837589A (en) | 2012-09-18 | 2012-09-18 | Method for preventing collision and water immersion of lithium battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN102837589A true CN102837589A (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012103458135A Pending CN102837589A (en) | 2012-09-18 | 2012-09-18 | Method for preventing collision and water immersion of lithium battery pack |
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| CN (1) | CN102837589A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618471A (en) * | 2015-01-23 | 2015-05-13 | 天津大学 | Application state transition method applied to different terminals |
| CN105703438A (en) * | 2016-03-26 | 2016-06-22 | 赵紫州 | Anti-collision structure of mobile charging pile |
| CN112918566A (en) * | 2021-04-30 | 2021-06-08 | 厦门金龙联合汽车工业有限公司 | New forms of energy passenger train's top cap assembly |
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| CN2321649Y (en) * | 1998-03-06 | 1999-06-02 | 金国华 | Electric power car |
| CN101332928A (en) * | 2008-07-31 | 2008-12-31 | 天津中能锂业有限公司 | Method for packaging negative pole lithium band of lithium battery |
| CN201189816Y (en) * | 2008-03-21 | 2009-02-04 | 陈玉启 | Low cost pure electric urban bus |
| CN201329838Y (en) * | 2008-11-25 | 2009-10-21 | 胡锦洲 | Automobile collection box |
| CN101683872A (en) * | 2008-09-25 | 2010-03-31 | 本田技研工业株式会社 | Accumulator configuration structure in electric vehicle |
| CN202806332U (en) * | 2012-09-18 | 2013-03-20 | 江西凯马百路佳客车有限公司 | Passenger car ceiling with lithium batteries |
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2012
- 2012-09-18 CN CN2012103458135A patent/CN102837589A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321649Y (en) * | 1998-03-06 | 1999-06-02 | 金国华 | Electric power car |
| CN201189816Y (en) * | 2008-03-21 | 2009-02-04 | 陈玉启 | Low cost pure electric urban bus |
| CN101332928A (en) * | 2008-07-31 | 2008-12-31 | 天津中能锂业有限公司 | Method for packaging negative pole lithium band of lithium battery |
| CN101683872A (en) * | 2008-09-25 | 2010-03-31 | 本田技研工业株式会社 | Accumulator configuration structure in electric vehicle |
| CN201329838Y (en) * | 2008-11-25 | 2009-10-21 | 胡锦洲 | Automobile collection box |
| CN202806332U (en) * | 2012-09-18 | 2013-03-20 | 江西凯马百路佳客车有限公司 | Passenger car ceiling with lithium batteries |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618471A (en) * | 2015-01-23 | 2015-05-13 | 天津大学 | Application state transition method applied to different terminals |
| CN104618471B (en) * | 2015-01-23 | 2018-04-06 | 天津大学 | Towards the Application Status transfer method of different terminals |
| CN105703438A (en) * | 2016-03-26 | 2016-06-22 | 赵紫州 | Anti-collision structure of mobile charging pile |
| CN112918566A (en) * | 2021-04-30 | 2021-06-08 | 厦门金龙联合汽车工业有限公司 | New forms of energy passenger train's top cap assembly |
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Application publication date: 20121226 |