CN202474078U - Soft-package lithium-ion power battery pack - Google Patents

Soft-package lithium-ion power battery pack Download PDF

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Publication number
CN202474078U
CN202474078U CN2012200843757U CN201220084375U CN202474078U CN 202474078 U CN202474078 U CN 202474078U CN 2012200843757 U CN2012200843757 U CN 2012200843757U CN 201220084375 U CN201220084375 U CN 201220084375U CN 202474078 U CN202474078 U CN 202474078U
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CN
China
Prior art keywords
power battery
battery pack
fixed
pack according
casing
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Expired - Fee Related
Application number
CN2012200843757U
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Chinese (zh)
Inventor
王清泉
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Priority to CN2012200843757U priority Critical patent/CN202474078U/en
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Publication of CN202474078U publication Critical patent/CN202474078U/en
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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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The utility model relates to a soft-package lithium-ion power battery pack. The soft-package lithium-ion power battery pack comprises a box, a box cover, baffle plates and batteries which are provided with positive and negative lugs, wherein the baffle plates are arranged in the box in parallel so as to divide the interior of the box into a plurality of containing chambers; the batteries are arranged in the containing chambers; and the lugs of the batteries in adjacent containing chambers are pressed and fixed by pressing plates, so that the batteries in adjacent containing cavities can be connected in series or parallel. The soft-package lithium-ion power battery pack can be used for improving the degree of assembly design standardization; the assembly is simple; and the cost is reduced. Battery cells are mounted by using a unified box, so that a radiator and a water-preventing device can be arranged on the box uniformly; the radiating performance and the water-preventing performance are ensured; the use temperature consistency of the batteries is effectively ensured; and the service lives of the batteries are prolonged.

Description

A kind of soft package lithium ion power battery group
Technical field
The utility model belongs to the electrokinetic cell field, is specifically related to a kind of soft package lithium ion power battery group.
Background technology
Flexible packing lithium ion battery is because security performance is good, and encapsulation is convenient, and producer extensively adopts by battery.But the integrated of flexible packing lithium ion battery is the technological difficulties of each battery producer.Most of at present mode that battery case is formed design then that is respectively charged into that adopts; Comprise a plurality of monomers like a battery pack; Each monomer comprises battery case shell, electric core and electrode terminal; Earlier electric core is forgiven in the battery case shell, the series and parallel that brace carries out monomer is set between electrode terminal then connects.
Prior art has increased the cost of battery case, and assembling is complicated.
The utility model content
The purpose of the utility model is to provide a kind of can directly carry out integrated assembling to flexible packing lithium ion battery, is adapted to standardized designs and application, the soft package lithium ion power battery group that assembly cost is reduced.
The utility model provides ion power battery pack in a kind of flexible package; Comprise casing, case lid, dividing plate and be provided with the battery of positive and negative lug; Thereby dividing plate is arranged on box house in parallel to each other box house is partitioned into a plurality of container cavities; Battery is set in the container cavity, and the lug of battery is fixed through pressing plate in the adjacent container cavity, so that the battery in the adjacent container cavity is in series or in parallel with each other.
The utility model adopts pressing plate to compress lug; So that the battery of dividing plate both sides can compress the mode serial or parallel connection through pressing plate; Battery need not to adopt behind traditional difference packed battery box ways of connecting more thus; Make the assembling standardization level of battery and concentrate the degree of assembling all to improve, and cause cost to reduce owing to saving battery case.
Preferably, pressing plate comprises top board and lower platen, and bolt passes top board, lug and lower platen in order top board, lug and lower platen are fixed.
Preferably; The a plurality of fixed heads that also comprise fixation clip; Fixed head is fixed on the casing in parallel to each other, and arranges (being to arrange with the direction of divider upright in the fixed head edge) with dividing plate formation " well " font, and the two ends of top board and/or lower platen are fixed on the fixed head.Through top board and/or lower platen are fixed on the fixed head, can play the effect of effective self-contained battery, prevent that battery from pitching in use.
Preferably, the two ends of top board and/or lower platen stretch out and form the end, and fixed head is provided with the groove of anchor portion, and top board and/or lower platen are fixed on the fixed head through its end.The end of top board and/or lower platen is fixed in the groove of fixed head, can suitably reduces the extended height of lug, and then can reduce the whole height of Battery case.
Preferably, positive and negative lug is " L " type, and the battery in the adjacent container cavity is connected through positive and negative lug each other.Conspicuous, anode ear and negative electrode lug are bent to form " L " type respectively round about, thereby realize that the battery in the adjacent container cavity connects through positive and negative lug each other.Preferably, positive and negative lug is T-shape, and the battery in the adjacent container cavity is parallel with one another.
Preferably, casing adopts concavo-convex the cooperation with the joint of case lid, and is provided with first sealing ring at the joint of casing and case lid.Through first sealing ring of concavo-convex cooperation and setting, improved the water resistance of Battery case.
Preferably, box outer surface is provided with heating panel and fan; The laminated structure of this heating panel for processing by box outer surface.Preferably, box outer surface is fixed with water-cooling structure, and water-cooling structure comprises cooled plate and is arranged on the inner cooling water channel of cooled plate.Be arranged on heat abstractor or cooling device on the casing through these, improved the heat dispersion of power brick, can effectively guarantee the consistency of battery serviceability temperature environment, postpone the life-span of battery.
More excellent, cooling water channel is half-cylindrical, and semi-cylindrical bottom surface contacts with said casing.Directly contact with cabinet exterior through cold water, reduced middle heat transfer medium, can further improve the heat dispersion of power brick like this.
Description of drawings
Battery sketch map when Fig. 1 is the utility model series system;
Battery sketch map when Fig. 2 is the utility model parallel way;
Fig. 3 is the utility model battery assembly structure sketch map;
Fig. 4 is the sketch map that the utility model lug is connected by pressing plate;
Fig. 5 is the utility model casing internal partition structural representation;
Structural representation when Fig. 6 is the utility model mounting plate;
Fig. 7 is the structural representation of the concavo-convex cooperation of the utility model case lid;
Fig. 8 is the structural representation of the utility model battery management system;
Fig. 9 is first kind of radiator structure sketch map of the utility model;
Figure 10 is second kind of radiator structure sketch map of the utility model;
Figure 11 is the third radiator structure sketch map of the utility model;
Figure 12 is the partial sectional view of radiator structure shown in Figure 11 along the A-A direction;
Figure 13 is the 4th kind of radiator structure sketch map of the utility model;
Figure 14 is the partial sectional view of radiator structure shown in Figure 13 along the B-B direction.
Embodiment
Below will combine Figure of description, the utility model embodiment will be described.
Battery sketch map when Fig. 1 is the utility model series system.Battery 1 is a soft package lithium ion power battery, has positive and negative lug 2,2 ', and anode ear 2 is processed by aluminum; Negative electrode lug 2 ' is processed by copper nickel plating material; Lug thickness is 100 μ m-300 μ m, is " L " type, and positive and negative lug 2,2 ' bends round about.Earlier three battery cell parallel connections are constituted a battery 1 during use, and then by unified positive and negative lug 2,2 ' external the stretching out.Battery opposite polarity lug is connected during series connection.
Battery sketch map when Fig. 2 is the utility model parallel way.Differently with Fig. 1 be that positive and negative lug 2,2 ' is T-shape, battery identical polar lug is connected during parallel connection.
Fig. 3 is the utility model battery assembling sketch map; Comprise casing 3, dividing plate 4 with have positive and negative lug 2,2 ' battery 1, said dividing plate 4 is arranged on casing 3 inside in parallel to each other; Thereby casing 3 internal intervals are become a plurality of container cavities; Said battery 1 is set in the said container cavity, and the lug of battery 1 is fixed through pressing plate in the adjacent container cavity, so that the battery in the adjacent container cavity is in series or in parallel with each other.The material of pressing plate does not have special demands, can select hard not yielding with the cracking metal material or nonmetallic materials.When the battery of adjacent container cavity was connected, the lug of opposite polarity connected between the battery; When the battery of adjacent container cavity was parallelly connected, the lug of identical polar connected between the battery, and what Fig. 3 showed is series connected battery assembling sketch map.
Fig. 4 is the sketch map that lug is connected by pressing plate.Pressing plate comprises top board 5 and lower platen 6, and top board 5 has keyhole 51, and lug 2 has perforation 21, and lower platen 6 has internal thread 61.Bolt 7 passes top board 5, lug perforation 21 in order, and screws through internal thread 61 and lower platen 6, thereby makes top board 5, lower platen 6 be fixed lug, and lug is connected.
Fig. 5 is the utility model casing internal partition structural representation.Be provided with slot 31 equally spacedly at casing 3 inwalls, dividing plate 4 inserts to be located in the slot 31, thereby casing 3 is partitioned into a plurality of container cavities.Dividing plate 4 is the aluminium alloy material flitch of thickness 0.2-3mm, two shoulder and the height such as centre position height and battery aluminum-plastic composite membrane at dividing plate 4 tops.
Fig. 6 is the structural representation that is equiped with fixed head 8.The material of fixed head does not have specific (special) requirements, can select hard not yielding with the cracking metal material or nonmetallic materials.Consider that the battery pack inner space is narrow and small, adopt the fixed head of metal material to cause short circuit easily, so fixed head preferred insulative material, for example epoxy resin, polyphenylene sulfide (PPS), polybutylene terephthalate (PBT) (PBT), Teflon or nylon etc.In the present embodiment; Fixed head 8 is set up in dividing plate 4 tops in parallel to each other; Its end (also can be fixed on the casing 3 through the mode of interference fit) through being bolted on the casing 3, and forms " well " font arrange (being to arrange with the direction of divider upright in the fixed head edge) with dividing plate.Particularly, three fixed heads 8 are separately positioned on the centre and the two shoulder places of dividing plate 4.The two ends of top board 5 and lower platen 6 all stretch out and form the end; Perhaps top board 5 or lower platen 6 the two one of two ends stretch out and form the end; Fixed head 8 is provided with the groove 81 of fixing top board and/or lower platen end; Top board and/or lower platen are fixed on the fixed head through its end, and groove 81 is also as the trough of external wire.
Fig. 7 is the structural representation of the concavo-convex cooperation of case lid.Said casing 3 adopts concavo-convex the cooperation with case lid 9 at joint, and is provided with first sealing ring 10 at the joint of said casing 3 and case lid 9, and casing 3 passes through this sealing structure waterproof with case lid 9.
Fig. 8 is the battery management system structural representation.Battery management system BMS is fixed on case lid 9 inner surfaces, and high pressure wire harness interface 91 is located on cover plate or the casing with low pressure wire harness interface 92 as required.
For the ease of heat radiation, casing 3 is processed by easy Heat Conduction Material, dispels the heat through the cabinet exterior heat exchange pattern.
In order to increase radiating effect, Fig. 9-Figure 12 provides four kinds of radiating modes of the utility model.
Fig. 9 has shown first kind of radiator structure of the utility model, and is as shown in the figure, and casing 3 outer surfaces are provided with heating panel 11 and fan 12.The laminated structure of heating panel 11 for directly being processed by box outer surface, the box house heat conducts to fin 11 rapidly through dividing plate, is undertaken air-cooled by 12 pairs of fin of radiator fan 11 then.
Figure 10 has shown second kind of radiator structure of the utility model; As shown in the figure, casing 3 outer surfaces are fixed with outside heat sink 11, and fin 11 scribbles heat-conducting glue 13 with the faying face of casing 3; Heat-conducting glue 13 can not only play conductive force; Also prevent to form the gap between fin 11 and the box outer surface, avoid the air gap to make the fin 11 and the contact-making surface of box outer surface reduce, be unfavorable for heat conduction.
Compare second kind of radiator structure shown in Figure 10, the structure of first kind of radiator structure shown in Figure 9 is simpler, and radiating effect is better, and therefore preferred in use employing is shown in Figure 9 to be first kind of radiator structure of example.
Figure 11 and Figure 12 have shown the third radiator structure of the utility model, and this radiator structure is a water-cooling structure.This water-cooling structure comprises cooled plate 14 and is arranged on the cooling water channel 16 in the cooled plate 14.Cooling water channel is cylindrical, scribbles heat-conducting glue 15 between cooled plate 14 and casing, and the battery case internal heat conducts to cooled plate 14 rapidly through dividing plate and heat-conducting glue 15, and the cooling water that passes through cooling water channel in the cooled plate 14 then is with heat absorption.Radiator on cooling water and the car or carry out after the heat exchange recirculation with air-conditioning and be back to and in the cooled plate Battery case cooled off or heat.
Figure 13 and Figure 14 have shown another preferred water-cooling structure.Cooling water channel 16 is half-cylindrical, and the outer wall sealing of semi-cylindrical bottom surface and casing 3 combines, and casing 3 internal heat conduct to tank wall rapidly through dividing plate, through the cooling water that flows Battery case 3 are cooled off then.Cooling water through with car on radiator or carry out after the heat exchange recirculation with air-conditioning and be back to and in the cooled plate Battery case 3 cooled off or heat.Because the bottom surface of half-cylindrical cooling water channel is direct and the outer arm contact of casing, film-cooled heat increases, and cooling effect is better, so preferred this water-cooling structure.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also change and revise above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.

Claims (10)

1. soft package lithium ion power battery group; Comprise casing, case lid, dividing plate and be provided with the battery of positive and negative lug; Thereby said dividing plate is arranged on box house in parallel to each other box house is partitioned into a plurality of container cavities, and said battery is set in the said container cavity, it is characterized in that; The lug of battery is fixed through pressing plate in the adjacent container cavity, so that the battery in the adjacent container cavity is in series or in parallel with each other.
2. power battery pack according to claim 1 is characterized in that said pressing plate comprises top board and lower platen, and bolt passes top board, lug and lower platen in order top board, lug and lower platen are fixed.
3. power battery pack according to claim 2; It is characterized in that also comprise a plurality of fixed heads of fixation clip, said fixed head is fixed on the casing in parallel to each other; And form " well " font with dividing plate and arrange, the two ends of said top board and/or lower platen are fixed on the said fixed head.
4. power battery pack according to claim 3 is characterized in that, the two ends of top board and/or lower platen stretch out and form the end, and fixed head is provided with the groove of fixing said end, and top board and/or lower platen are fixed on the fixed head through its end.
5. power battery pack according to claim 1 is characterized in that, said positive and negative lug is " L " type, and the battery in the adjacent container cavity is connected through positive and negative lug each other.
6. power battery pack according to claim 1 is characterized in that, said positive and negative lug is T-shape, and the battery in the adjacent container cavity is parallel with one another.
7. power battery pack according to claim 1 is characterized in that, said casing adopts concavo-convex the cooperation with the joint of case lid, and is provided with first sealing ring at the joint of said casing and case lid.
8. power battery pack according to claim 1 is characterized in that said box outer surface is provided with heating panel and fan; The laminated structure of this heating panel for directly processing by box outer surface.
9. power battery pack according to claim 1 is characterized in that said box outer surface is fixed with water-cooling structure, and water-cooling structure comprises cooled plate and is arranged on the inner cooling water channel of cooled plate.
10. power battery pack according to claim 9 is characterized in that, said cooling water channel is half-cylindrical, and semi-cylindrical bottom surface contacts with said casing.
CN2012200843757U 2012-03-07 2012-03-07 Soft-package lithium-ion power battery pack Expired - Fee Related CN202474078U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200843757U CN202474078U (en) 2012-03-07 2012-03-07 Soft-package lithium-ion power battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200843757U CN202474078U (en) 2012-03-07 2012-03-07 Soft-package lithium-ion power battery pack

Publications (1)

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CN202474078U true CN202474078U (en) 2012-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200843757U Expired - Fee Related CN202474078U (en) 2012-03-07 2012-03-07 Soft-package lithium-ion power battery pack

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362410A (en) * 2014-11-19 2015-02-18 奇瑞汽车股份有限公司 Water-cooling battery module
CN106025132A (en) * 2016-07-05 2016-10-12 上汽通用汽车有限公司 Battery pack device
CN109509852A (en) * 2018-11-30 2019-03-22 苏州安靠电源有限公司 Battery pack

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362410A (en) * 2014-11-19 2015-02-18 奇瑞汽车股份有限公司 Water-cooling battery module
CN104362410B (en) * 2014-11-19 2018-01-16 奇瑞新能源汽车技术有限公司 Water-cooled cells module
CN106025132A (en) * 2016-07-05 2016-10-12 上汽通用汽车有限公司 Battery pack device
CN109509852A (en) * 2018-11-30 2019-03-22 苏州安靠电源有限公司 Battery pack

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121003

Termination date: 20200307