CN100483792C - Cell component of electric motorcar - Google Patents

Cell component of electric motorcar Download PDF

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Publication number
CN100483792C
CN100483792C CNB2006100210791A CN200610021079A CN100483792C CN 100483792 C CN100483792 C CN 100483792C CN B2006100210791 A CNB2006100210791 A CN B2006100210791A CN 200610021079 A CN200610021079 A CN 200610021079A CN 100483792 C CN100483792 C CN 100483792C
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China
Prior art keywords
box body
battery component
lid
battery
sub
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CNB2006100210791A
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CN101079477A (en
Inventor
王向征
夏承钢
宋明
尚小良
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BYD Co Ltd
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BYD Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses a battery component of electric vehicle, which comprises the following parts: box, subbattery group in the box, wherein two coroners of box back notches forwards. The invention reduces the back bulk of battery component, which provides sufficient space for assembling fulcrum on the back suspension of electric vehicle.

Description

The battery component of electric automobile
Technical field
The present invention relates to electric automobile, particularly the battery component of electric automobile.
Background technology
Increase day by day along with consumption of petroleum; verified the minimizing gradually of oil reserve; the product oil price is soaring rapidly; the sign of energy crisis slowly presents; main in the world automobile manufacturing company competitively carries out the research of new energy sources for automobile technical elements, and common way is exactly to carry out structure and technical improvement on the basis of the fuel-engined vehicle of existing comparative maturity.In numerous new forms of energy substitute technologies, electric automobile develops very fast beyond doubt and has realistic meaning, and its development prospect is wide.And electric automobile generally all need adopt the battery component that comprises electrokinetic cell so that the energy of driving to be provided.
Chinese invention patent batteries of electric automobile box (publication number is CN 1734808A) discloses a kind of batteries of electric automobile assembly, this batteries of electric automobile assembly comprises: a battery box, a plurality of battery pack fixtures that place in this battery box, one by flange link to each other with this battery box in order to hold all fill device all fill the device box body.Wherein this battery pack fixture is provided with: two clamping plate, these clamping plate both sides respectively are provided with two extensions that bend inwards and an extension that outwards bends, and the bottom of these clamping plate is provided with two horizontal ledge; Four steady braces, this steady brace has the shaft in L shaped cross section, respectively there is a flat board perpendicular to shaft at two ends, should and the dull and stereotyped outside respectively has one to have the cylindrical projection of screw thread; Four fixing briquettings, this fixedly briquetting have a shape base plate and two blocks of side plates, have in the middle of this base plate with these clamping plate on the outside groove that matches of the extension of bending, these base plate two ends are because the hole that this steady brace two ends cylindrical projection matches; These clamping plate are positioned at the inboard of the flat board of two sections of this steady braces, and the fixed lobe of this steady brace by its two ends is connected this fixedly on the briquetting, this fixedly briquetting link to each other with these clamping plate by the groove in the middle of its base plate.This battery box rear end is provided with discharge pipe preformed hole, through wires hole, this centre position, battery box bottom is provided with a reinforcement, this battery box bottom is welded with some internal thread joint pins, this battery box inside is sprayed with insulating material, insulation board is equipped with in the two side, be provided with reinforcement on the base plate of this battery box in addition, the base plate of this battery box is provided with through wires hole, also is welded with link on this battery case base plate.
Above-mentioned the deficiencies in the prior art part is: this battery box cross sectional shape is a rectangle, because electric wire, the wire harness of this battery component are placed on the upper and lower both sides of battery pack fixture in the battery box, reserve placement location in order to give appliance mounting panel, wire harness, need leave the space between this battery box and the battery pack fixture, because the cross sectional shape in this space also is a rectangle, this voidage is bigger, makes that this battery component volume is big.For the limited electric automobile of floor space, use existing battery component can take the installation fulcrum of the rear suspension of electric automobile, thereby interfere with the installation of the rear suspension of electric automobile.
Above-mentioned the deficiencies in the prior art part also has: have only a battery box, can't seal, be easy to into water in the battery component, influence the performance of battery component.
Above-mentioned the deficiencies in the prior art part also has: this battery component does not have load-carrying members, and its load-bearing property is not good.
Summary of the invention
The technical problem to be solved in the present invention is: provide the less battery component of a kind of volume to be installed on the electric automobile to make things convenient for battery component; The battery component that a kind of good seal performance is provided is simultaneously intake in the battery component avoiding.
Technical scheme of the present invention is summarized as follows: a kind of battery component of electric automobile comprises box body, places the sub-battery pack in the box body, and is recessed before two angles of described box body rear portion.
Wherein, the anterior two angle recurves of described box body.
Wherein, described battery component also comprises lid, the shape of described lid is corresponding with the shape of box body, the surface that lid contacts with box body has corresponding screw respectively, and it is fastening with lid and box body that screw passes screw, and there is sealing strip on the surface that described lid contacts with box body.
Wherein, described box bottom has at least two boss, and described boss two ends contact with the madial wall of box body front and rear, and the gap length between adjacent two boss is identical with the width of sub-battery pack.
Wherein, described battery component also comprises crossbeam and load-bearing screw rod; Crossbeam is across between adjacent two boss, and described crossbeam is between the adjacent sub-battery pack in front and back; Load-bearing screw rod lower end is fixed on the crossbeam, and the upper end is passed lid and fixed with nut and seal with fluid sealant.
Wherein, described battery component also comprises appliance mounting panel, and described appliance mounting panel is in the gap between box body rear inside wall and the sub-battery pack or the gap between box body front inner wall and sub-battery pack.
Wherein, described battery component also comprises the emergency power off switch, and described emergency power off switch is positioned on the appliance mounting panel.
Wherein, described lid comprises inserting of hollow, and this position of inserting is corresponding with the position of emergency power off switch, and the emergency power off switch passes to be inserted and seal with fluid sealant.
Wherein, described box side wall is provided with at least 1 hole, and electric wire or wire harness pass Kong Bingyong fit sealing spare and fix.
Wherein, described box body outer bottom is provided with the reinforcement gusset.
Compared with prior art, effect of the present invention is as follows:
The battery component of a kind of electric automobile of the present invention comprises box body, place the sub-battery pack in the box body, and box body rear portion two angle indents had wherein both kept the position of appliance mounting panel, wire harness, and the unnecessary cavitys at two jiaos of places are eliminated.So just reduce the back volume of battery component, thereby provide sufficient space for the installation fulcrum of the rear suspension of electric automobile.Avoid influencing the installation of the rear suspension fulcrum of electric automobile because the volume of battery component is excessive.
The box body of the battery component of a kind of electric automobile of the present invention also concaves for anterior two jiaos, so just reduced the anterior volume of battery component, reduced the space that battery component takies the vehicle body of electric automobile, in car, reserve more spaces and give the passenger, make the passenger feel more comfortable taking electric automobile.
The battery component of a kind of electric automobile of the present invention also comprises lid, the shape of lid is corresponding with the shape of box body, the surface that lid contacts with box body has corresponding screw respectively, and it is fastening with lid and box body that screw passes screw, and there is sealing strip on the surface that described lid contacts with box body.Box side wall is provided with at least 1 hole, and electric wire or wire harness pass Kong Bingyong fit sealing spare and fix.Like this, make the entire cell assembly be sealed, avoid water inlet in the battery component, influence the battery component performance.
The battery component of a kind of electric automobile of the present invention also comprises crossbeam and load-bearing screw rod, and this crossbeam and load-bearing screw rod can strengthen the load-bearing property of battery component.
The battery component of a kind of electric automobile of the present invention also comprises the emergency power off switch, described emergency power off switch energy fast shut-off battery component output current, the security performance of enhancing battery component.
The box body outer bottom of the battery component of a kind of electric automobile of the present invention is provided with the reinforcement gusset.Can strengthen the rigidity of box body, make box body stressed evenly, avoid the box body distortion.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention when not placing sub-battery pack.
Fig. 2 is the structural representation after the embodiment of the invention is placed sub-battery pack.
Fig. 3 a and Fig. 3 b are the structural representations of the first fit sealing spare.
Fig. 4 a and Fig. 4 b are the structural representations of the second fit sealing spare.
Fig. 5 is the structural representation of box body outer bottom.
Fig. 6 is the structural representation of lid.
1. box bodys among the figure, 2. lid, 3. sub-battery pack, 4. appliance mounting panel, 5. crossbeam, 6. load-bearing screw rod, 7. emergency power off switch, 8. briquetting, 9. sealing strip, 16. support, 17. first fit sealing spares, 171. sealing rings, 172. sealing nut, 173. fastening screw nuts, 174. first fit sealing spare main bodys, 18. the second fit sealing spare, 13. strengthen gusset, and 20. insert.
Embodiment
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.As shown in Figure 1 and Figure 2, the battery component of electric automobile comprises box body 1, sub-battery pack 3, appliance mounting panel 4, crossbeam 5, load-bearing screw rod 6.
As shown in Figure 1, the structure of box body 1 improves to some extent on the basis of existing box body (cross section is a rectangle), falls in before showing as two angles of rear portion (fulcrum being installed near rear suspension), on box body 1 rear sidewall at least two holes is arranged.Charging wire, management wire harness can pass from the hole.Appliance mounting panel 4 can weld in base plate place, space between box body 1 rear inside wall and the sub-battery pack 3, on this appliance mounting panel 4 screw is arranged, and electrical equipment can be fixed on this appliance mounting panel 4 by fastening bolt.Electric wire, wire harness can be placed in other space between box body 1 rear inside wall and the sub-battery pack 3.
In order to reduce the space that battery component takies vehicle body, in automobile, reserve more spaces, two angles of battery case box body 1 front portion also can fall in backward.Box body 1 anterior sidewall is provided with at least two holes, and power line, control line can pass from the hole.Appliance mounting panel 4 can weld in base plate place, space between box body 1 front inner wall and the sub-battery pack 3, on this appliance mounting panel 4 screw is arranged, and electrical equipment can be fixed on this appliance mounting panel 4 by fastening bolt.Electric wire, wire harness can be placed in other space between box body 1 rear inside wall and the sub-battery pack 3.Above-mentioned appliance mounting panel 4 adopts insulating material, above-mentioned appliance mounting panel 4 preferred epoxy plates.
Shown in Fig. 3 a, Fig. 3 b, for guaranteeing the sealing property of battery component of the present invention, when electric wire (comprising charging wire or power line or switching line) passes hole on box body 1 sidewall, can be by the 17 fixing and sealings of the first fit sealing spare.Shown in Fig. 4 a, Fig. 4 b, after wire harness (for example: manage wire harness) passes the hole on box body 1 sidewall, can be by the 18 fixing and sealings of the second fit sealing spare.The first fit sealing spare 17 comprises the first fit sealing spare main body 174, fastening screw nut 173, sealing nut 172 and sealing ring 171.The first fit sealing spare 17 is passed hole on box body 1 sidewall, tighten fastening screw nut 173 the first fit sealing spare 17 is fixed on box body 1 sidewall.Electric wire is tightened sealing nut 172 after passing the first fit sealing spare 17, and sealing nut 172 compresses sealing ring 171, and sealing ring 171 compresses electric wire, just plays effect fastening and sealing.The second fit sealing spare 18 is an elastomeric material, and the connecting portion of it and box body 1 is a V-type, makes on the sidewall that is fixed on battery case that the second fit sealing spare 18 can be firm. after wire harness passes seal, rely on the elasticity of rubber to play the effect of sealing.
As shown in Figure 5, box body 1 outer bottom is provided with strengthens gusset 13, to strengthen the rigidity of box body 1.When with battery component of the present invention fixedly on the car body of electric automobile the time, above-mentioned reinforcement gusset 13 can make box body 1 stressed evenly, avoids box body 1 distortion.
As shown in Figure 2, sub-battery pack 3 is fixed in the box body 1.As shown in Figure 1, there are at least two boss box body 1 bottom surface, described boss two ends contact with the madial wall of box body 1 front and rear, gap length between adjacent two boss is identical with the width of sub-battery pack 3, sub-battery pack 3 can be stuck in adjacent two boss, thereby sub-battery pack 3 is fixed in the box body 1 from left and right directions.Support 16 is welded on box body 1 bottom surface between adjacent two boss, is welded with nut on the support 16, and screw, the nut on the support 16 that screw passes on the sub-battery pack 3 are fixed on sub-battery pack 3 fore-and-aft directions in the box body 1.
As shown in Figure 1, crossbeam 5 is across between adjacent two boss, and welding is adopted in the place that crossbeam 5 contacts with boss.Each crossbeam 5 is between the adjacent sub-battery pack 3 in front and back.Crossbeam 5 and itself and crossbeam 5 is fastening with nut is passed in load-bearing screw rod 6 lower ends, and the Kong Bingyong nut that load-bearing screw rod 6 upper ends are passed on the lid 2 is fixed, and seals with fluid sealant again.Load-bearing screw rod 6 lower ends also can directly be welded on the crossbeam 5.For sub-battery pack 3 is completely fixed in the box body 1, can between adjacent two sub-battery pack 3, set up briquetting 8, this briquetting 8 is enclosed within on the load-bearing screw rod 6 and pushes down sub-battery pack 3 again by clamp nut locking, just from above-below direction battery pack 3 is fixed on the box body 1.
As shown in Figure 2, in order to strengthen the fail safe of battery component, battery component of the present invention can be set up emergency power off switch 7, and this emergency power off switch 7 can place on the appliance mounting panel 4.This emergency power off switch 7 can could use emergency power off switch 7 when running into when emergency or other disconnect all can not work by fast shut-off battery component output current, all will unplug emergency power off switch 7 in addition when maintenance circuit and maintenance car load.
As shown in Figure 6, in order to guarantee the sealing property of battery component of the present invention, can set up lid 2.The shape of lid 2 is corresponding with the shape of box body 1.The upper surface of lid 2 is fluted, and this groove can increase the rigidity of lid 2.The upper surface of lid 2 also has 1 hole at least, and load-bearing screw rod 6 passes this hole, and fixes with nut, seals with fluid sealant again.If battery component of the present invention has been set up emergency power off switch 7, lid 2 also can insert 20 with the 7 corresponding positions increases of emergency power off switch, these 20 hollows and pass underbody of inserting, emergency power off switch 7 passes inserts 20, carries out waterproof sealing with automobile-used fluid sealant again and handles.
The inwall of lid 2 and box body 1 all passes through plastic-blasting and handles, and has good insulation performance.Lid 2 and box body 1 all adopt the whole punch forming of steel plate, and good rigidly is in light weight.On the surface that lid 2 contacts with box body 1 corresponding screw is arranged respectively, it is fastening with lid 2 and box body 1 that screw passes screw.As shown in Figure 2, sealing strip 9 is equipped with on the surface that lid 2 contacts with box body 1, and sealing bar 9 can play the effect of integral sealing when lid 2 covers box body 1.
Battery component of the present invention is connected with vehicle frame, the floor of vehicle body with the load-bearing screw rod by flange, thereby battery component is fixed in the electric automobile vehicle body.

Claims (10)

1. the battery component of an electric automobile comprises box body (1), places the sub-battery pack (3) in the box body (1), it is characterized in that: recessed before two angles of described box body (1) rear portion.
2. battery component according to claim 1 is characterized in that: the anterior two angle recurves of described box body (1).
3. battery component according to claim 1 and 2, it is characterized in that: also comprise lid (2), the shape of described lid (2) is corresponding with the shape of box body (1), the surface that lid (2) contacts with box body (1) has corresponding screw respectively, it is fastening with lid and box body that screw passes screw, and there is sealing strip (9) on the surface that described lid contacts with box body.
4. battery component according to claim 3, it is characterized in that: described box bottom has at least two boss, described boss two ends contact with the madial wall of box body front and rear, and the gap length between adjacent two boss matches with the width of sub-battery pack (3).
5. battery component according to claim 4 is characterized in that: described battery component also comprises crossbeam (5) and load-bearing screw rod (6); Crossbeam (5) is across between adjacent two boss, and before and after being positioned between the adjacent sub-battery pack (3); Load-bearing screw rod (6) lower end is fixed on the crossbeam (5), and the upper end is passed lid (2) and fixed, is sealed on the lid (2) with fluid sealant with nut.
6. battery component according to claim 5, it is characterized in that: described battery component also comprises appliance mounting panel (4), described appliance mounting panel (4) be positioned at the gap between box body (1) rear inside wall and the sub-battery pack (3) or be positioned at box body (1) front inner wall and sub-battery pack (3) between the gap.
7. battery component according to claim 6 is characterized in that: described battery component also comprises emergency power off switch (7), and described emergency power off switch (7) is positioned on the appliance mounting panel (4).
8. battery component according to claim 7, it is characterized in that: described lid (2) comprises insert (20) of hollow, the position of these insert (20) is corresponding with the position of emergency power off switch (7), and emergency power off switch (7) passes to be inserted (20) and seal with fluid sealant.
9. according to claim 1 or 2 or 4 or 5 or 6 or 7 described battery components, it is characterized in that: described box body (1) sidewall is provided with at least 1 hole, and electric wire or wire harness pass Kong Bingyong fit sealing spare and fix.
10. according to claim 1 or 2 or 4 or 5 or 6 or 7 described battery components, it is characterized in that: described box body (1) outer bottom is provided with strengthens gusset (13).
CNB2006100210791A 2006-05-26 2006-05-26 Cell component of electric motorcar Active CN100483792C (en)

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Application Number Priority Date Filing Date Title
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CNB2006100210791A CN100483792C (en) 2006-05-26 2006-05-26 Cell component of electric motorcar

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CN100483792C true CN100483792C (en) 2009-04-29

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN103066224A (en) * 2013-01-22 2013-04-24 力帆实业(集团)股份有限公司 Electric vehicle battery box sealing structure
CN103078072A (en) * 2013-01-22 2013-05-01 力帆实业(集团)股份有限公司 Anti-collision structure for battery box of electric vehicle

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CN102024925A (en) * 2010-10-30 2011-04-20 惠州亿纬锂能股份有限公司 Battery box and battery pack with same
JP5790365B2 (en) * 2011-09-20 2015-10-07 トヨタ自動車株式会社 Vehicle battery mounting structure
CN103996805A (en) * 2014-05-23 2014-08-20 河南速达电动汽车科技有限公司 Aluminum alloy battery box
KR101939832B1 (en) * 2015-09-23 2019-01-17 주식회사 엘지화학 Battery module and battery pack including the same and method for manufacturing a battery module casing
US9937818B2 (en) * 2016-02-09 2018-04-10 Nio Usa, Inc. Vehicle having a rigid frame structure for receiving a replaceable battery pack
CN105835950A (en) * 2016-04-28 2016-08-10 苏州安靠电源有限公司 Automobile chassis provided with battery installation interlayer
DE102017100612A1 (en) * 2017-01-13 2018-07-19 Benteler Automobiltechnik Gmbh Battery carrier with spacer sleeve
CN107331807A (en) * 2017-06-06 2017-11-07 北京新能源汽车股份有限公司 Battery container
CN107302066B (en) * 2017-06-06 2021-01-22 北京新能源汽车股份有限公司 Battery shell and bottom plate assembly thereof
KR20230165881A (en) 2019-01-09 2023-12-05 비와이디 컴퍼니 리미티드 Cell, battery pack, energy storage device and vehicle
CN115084752B (en) * 2022-05-23 2023-12-15 东风柳州汽车有限公司 Battery module light blocking structure and battery module

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066224A (en) * 2013-01-22 2013-04-24 力帆实业(集团)股份有限公司 Electric vehicle battery box sealing structure
CN103078072A (en) * 2013-01-22 2013-05-01 力帆实业(集团)股份有限公司 Anti-collision structure for battery box of electric vehicle
CN103066224B (en) * 2013-01-22 2015-01-14 力帆实业(集团)股份有限公司 Electric vehicle battery box sealing structure

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