CN101752538B - Lithium battery pack support with flat structure - Google Patents
Lithium battery pack support with flat structure Download PDFInfo
- Publication number
- CN101752538B CN101752538B CN2009102008488A CN200910200848A CN101752538B CN 101752538 B CN101752538 B CN 101752538B CN 2009102008488 A CN2009102008488 A CN 2009102008488A CN 200910200848 A CN200910200848 A CN 200910200848A CN 101752538 B CN101752538 B CN 101752538B
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- battery pack
- battery
- support
- baffle
- grooves
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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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Abstract
The invention relates to the field of lithium battery application, in particular to a lithium battery pack support with a flat structure. The lithium battery pack support with the flat structure consists of two battery pack external supports, two battery pack middle supports and a protection board support, wherein the two battery pack external supports are symmetrically arranged about a mirror image and are both provided with inward battery grooves, and the shapes of the battery grooves are consistent with combined shapes of battery packs; positioning salient points clamped in a gap of the battery packs are arranged in the battery grooves; a positioning pile of the protection board support and a fixed screw vacancy are arranged on the upper ends in the two battery pack external supports; outer circles of the battery grooves are provided with anti-vibration isolation edges; the structure of the two battery pack middle supports is same as that of the two battery pack external supports, and the positioning pile and the fixed screw vacancy are only saved; and the protection board support is fixed between the upper ends in the two battery pack external supports. The lithium battery pack support is used for fixing the battery packs and a protection board into a whole, and plays a role in supporting and protecting batteries and the protection board.
Description
Technical field
The present invention relates to field of lithium battery application, particularly a kind of lithium battery pack support of flat structure.
Background technology
Existing electric bicycle, its overall structure all are vehicle frame, motor, battery pack, several big critical pieces formations of controller.In this several big, constitute the battery pack of electric bicycle power resources, be the critical component that constitutes cell integrated structure.With the lithium battery is the secondary cell of representative; Number of applications is to electric bicycle even electric automobiles, because battery adopts novel secondary cells such as lithium battery, the battery aspect has the advantage that volume is little, in light weight, the life-span is long; Demonstrate great vitality, progressively trend is popularized.But to the electric bicycle field, also there is not to form fixing industry pattern in lithium battery applications at present, many battery of electric vehicle combinations; Also rest on the mode of simple combination, the connection between the battery, compound mode is very simple and crude; Only be to use some simple connections or welding; The outside adds that simple insulating material constitutes the packing of battery, and the anti-shake performance of battery is poor, is easy to because the imperfection of battery combination technology causes battery to lose efficacy in advance.
At present, in the lithium battery practical application, mostly adopt dual mode, a kind of is the polymer battery packing that adopts Soft Roll, and a kind of cylindrical battery that is to use is processed combination.
The defective of Soft Roll combination; Mostly be to adopt foam at interval between the electric core, the outside adds the mode of epoxy resin board, because the outside mode that constitutes of soft-package battery; Determined the non-constant of the shock-resistant ability of battery; Under the situation of vibration occurs at battery, falling, battery is easy to impaired, causes battery pack to lose efficacy.
The defective of cylinder combination, cylindrical battery all is to use adhesive between battery pack, to put glue at present, and battery pack is bonded to together; Use nickel strap spot welding connected mode with battery pack connection in series-parallel to an integral body, owing to rely on the pulling force of adhesive and nickel strap that battery pack is arrived together in groups simultaneously, conventional adhesive bonding force is not enough; In case come unglued; The connection nickel sheet of battery pack is easy to fracture, so there is anti-vibration in the compound mode of this routine and falls the problem of ability; Cause the reliability of battery to reduce, reduce battery pack useful life.
Simultaneously, during for lithium battery applications, must consider to install additional protective circuit; Promptly the requirement of conventional baffle in common compound mode, is installed at the head or the side of battery; The outside thermal contraction casing tube that uses is fixed, because the PCB (wiring board) of baffle, under the stress of thermal contraction casing tube; Wiring board is under the deformation state for a long time, because the various elements of baffle are to be welded on the wiring board, under the vibration situation of jolting of long-term stress and external electric bicycle; Be very easy to make baffle the rosin joint phenomenon to occur, cause the whole protecting plate to lose efficacy, and then cause whole battery group to lose efficacy.
Summary of the invention
The object of the present invention is to provide a kind of lithium battery pack support of flat structure, be used for battery pack and baffle fixing as a wholely, support plays and supports and the effect of protection battery and baffle.
For realizing above-mentioned purpose, the present invention is achieved in that
A kind of lithium battery pack support of flat structure is characterized in that: it is propped up by two battery pack outriggers, two battery pack intermediate supports and baffle and is configured to; Wherein:
Two battery pack outriggers are mirror image and are symmetrical set, and they all have inside battery grooves, and the shape of battery grooves is consistent with the combined shaped of battery pack; Has the positioning convex point that is used for being stuck in the battery pack space in this battery grooves; Two battery pack outrigger inner top side have the guide pile and the fixed screw room of baffle support; The battery grooves outer ring has the vibrationproof isolated border;
Two battery pack intermediate supports are identical with battery pack outrigger structure, only reduced guide pile and fixed screw room;
One baffle support is fixed between the two battery pack outrigger inner top side; Have the through hole that is used for B-, B+ nickel strap are incorporated into baffle on it, be used for spud pile that baffle support and baffle are secured together, be secured together baffle and baffle support with self-tapping screw; And baffle fairlead.
The lithium battery pack support of described flat structure is characterized in that: the inside grooves of described battery is added with foam.
The lithium battery pack support of described flat structure is characterized in that: the wire bonds that has the cell voltage sampling on the described battery pack outrigger is used square opening.
Above-mentioned battery bracket indoor design is fluted, the shape of groove and assembled battery end to end portion's shape to coincideing, battery in groups after; Respectively from cephlad-caudal; Battery is put into support, thereby battery pack is fixed as a firm integral body, the outer projection position of support; Play the effect that the outer box of battery pack and battery is isolated, prevent the friction of battery pack and shell.The baffle support can be positioned at the length direction of support, baffle is placed in the baffle support, and baffle support and battery pack support can be connected to one.
The shape of battery structure matching battery shell is designed to parallelogram sturcutre, uses the weld tabs of little parallelogram, and battery is carried out connection in series-parallel spot welding, constitutes complete battery pack.After the battery spot welding in groups,, respectively outside support and intermediate support are inserted in battery pack, penetrate stock screw and fastening in the screw hole position of corresponding support, make battery pack constitute a firm integral body at axial two of battery.Again the baffle support is installed to the position of battery pack support guide pile, uses screw that baffle support and baffle and battery bracket are fixed, constitute a complete battery pack integral body that comprises battery pack, baffle.
After using the lithium battery pack support of above-mentioned flat structure, whole system is made up of battery bracket, battery pack, baffle, brace and corresponding holding screw.
Described self-contained battery and baffle support, its battery bracket is characterised in that: support is made up of two parts up and down, along the battery direction; Be designed with and the battery pack corresponding groove; Isolation bar, the direction of the lead-out tablet of corresponding battery is designed with the room of lead-out tablet for battery.
Described self-contained battery and baffle support, the battery case of its holder part is characterised in that: according to cell types, can constitute and be applicable to a plurality of round-shaped of polymer battery rectangle or cylindrical lithium battery.
Described self-contained battery and baffle support, the fastening of lower carriage is characterised in that on it: rely on the bolt hole of reserving, rely on screw to carry out self-contained battery.
Described self-contained battery and baffle support, its baffle support is characterised in that: the baffle support adopts groove design, and inside is reserved with four guide piles, through guide pile, with baffle with screw fixedly on the baffle support.
Described self-contained battery and baffle fixed support; Its battery bracket and the cooperation of baffle support are characterised in that: the battery pack support is provided with and is used for the spacing and fixing hole that the baffle support positions, and the baffle support navigates on the battery pack support through screw.
Described self-contained battery and baffle support, its battery part combined shaped is characterised in that: battery adopts whole parallelogram sturcutre.
Described self-contained battery and baffle support, its battery part connection features is: series-parallel weld tabs between the battery, adopt little parallelogram sturcutre, simultaneously battery strings is parallel to together.The center of corresponding each battery plus-negative plate is designed with the fluting slit on the weld tabs.
Description of drawings
Fig. 1 is an integral installation figure of the present invention.
Fig. 2-1, Fig. 2-the 2nd, the structural representation of battery pack outrigger among the present invention.
Fig. 3-1, Fig. 3-the 2nd, the structural representation of battery pack intermediate support among the present invention.
Fig. 4 is the structural representation of baffle support among the present invention.
Embodiment
For convenience of description, be example with LiFePO4 column type 26650 batteries, the structural relation of this support is described:
Ask for an interview shown in Figure 1ly, be to use column type ferric phosphate lithium cell group, and be added with the overall structure figure of battery bracket and baffle support, A is the battery pack outrigger among the figure, and B is the battery pack intermediate support, and C is the baffle support, and middle battery D constitutes.
Asking for an interview Fig. 2-1, Fig. 2-2, is the drawing of battery pack outside support A among the figure, two support mirror image symmetries.Be divided into following components among the figure and constitute, a is a battery grooves among the figure, and this groove shapes is consistent with the combined shaped of battery pack, and what battery can be firm is stuck in this groove.Wherein b is a positioning convex point, can be stuck in the space of battery pack, is used to strengthen the location of battery pack.Inside grooves at battery is added with foam, after battery is fixing, is used to strengthen the anti-seismic performance of battery pack, improves the protective capability to battery.The position of c and d among the figure is the guide pile and the fixed screw room of left and right sides support and baffle support.After the preliminary assembled of battery pack, baffle and baffle support are installed to this position.The protruding part e that schemes to make a circle at home and abroad is the vibrationproof isolated border; Be used to strengthen the isolation and the damping usefulness of battery, can battery pack be kept apart the aluminium alloy battery box in the outside, prevent that the battery external packing is damaged after the long term wear; Through the battery case metallic conduction, cause internal short-circuit of battery.The little square opening f that is opened, the wire bonds that is used for the cell voltage sampling is used.Through hole g for being used for the through hole of battery entire bracket fixed screw, after the whole battery group assembled, uses stock screw and nut, battery case is carried out fastening, like this battery case and inner battery is constituted an integral body.
Ask for an interview Fig. 3-1, Fig. 3-2 is the sketch map of baffle battery pack intermediate support B, is the battery case of two symmetries among the figure, compares with left and right sides battery case support, has mainly removed the part that is used to connect the baffle support in the battery pack outside support.The structure of remainder and battery pack outside support is identical, and the explanation of corresponding comment and Fig. 2 is identical, does not do detailed description at this.
Ask for an interview Fig. 4, it is the structural representation of baffle support among the present invention.H is the through hole that the B-nickel strap is incorporated into baffle among the figure, and i is that the B+ nickel strap is introduced through hole, and j is the spud pile that baffle support and baffle are secured together, and is secured together baffle and baffle support with self-tapping screw.The socket position figure that the position of i goes between for two baffles reserving among the figure, the voltage signal of battery is connected on the baffle through this hole.Wherein j is the position of the introducing of the total negative pole of battery pack, and moulding nickel sheet spots weld on the battery pack, is incorporated in the baffle support through position, k hole, is connected on the baffle and welds.Wherein the PCB version type of baffle and baffle support carry out supporting design, make that both can no-float.
Ask for an interview Fig. 5, battery pack coupling part D puts figure, is batteries in parallel connection group of per three batteries, and its arrangement mode is a big parallelogram sturcutre.Connect through brace again, obtain whole battery pack.S is the design configuration behind the spot welding brace, and its peripheral shape is a little parallelogram sturcutre, and the welding position of corresponding battery is designed with fluting, reduces the shunting in the spot welding, improves the spot welding reliability of battery greatly.
Advantage of the present invention
Adopt the battery pack of self-contained battery and baffle support, have well-set advantage: because battery pack is fastened in the support, whole battery group is structure as a whole, and battery pack structure is firm.
Adopt the battery pack of self-contained battery and baffle support; But has the strong advantage of anti-vibration ability: the battery pack behind the employing fixed support; Between inside battery and the support anti-seismic material is arranged, owing to the existence of plastic rubber bracket, itself has constituted integrative-structure battery pack simultaneously; The vibration that driving brings is cancelled between support, affacts battery itself between not understanding.
Adopt the battery pack of self-contained battery and baffle support, have the stable advantage of baffle:
Adopt the battery pack of self-contained battery and baffle support; Has the advantage that improves the battery pack anti-short circuit capability: the bossing of the outer ring of battery bracket; After thoroughly having solved the friction of battery case and battery pack; Under the situation that battery insulation breaks, the hidden danger of battery pack short circuit appears in the outer box of the battery of metal material.The structure of battery pack goes for various battery cases.
Adopt the battery pack of self-contained battery and baffle support; Has the high advantage of the battery pack anti-pressure ability of raising: externally under the percussion; Its active force will disperse through support; Can directly not affact on the point on some batteries, cause battery to damage, improve the impact resistance of battery pack greatly.
Adopt the battery pack of self-contained battery and baffle support; Improved the safe class of battery pack inner lead: battery pack is connected to the holding wire of baffle; Be installed in the side of battery pack, be in the below of rising of battery pack support, lead can not receive the influence of various external force.Even under the situation that the external cell box of battery pack is impacted, lead can not receive the external force effect to be caused wire sheath to break and short circuit occurs.
Adopt the battery pack of self-contained battery and baffle support, have the good advantage of maintainability: after adopting the support mode to carry out battery combination, fixing dependence is the locking of the screw rod and the screw of support between the battery pack.Fixing between the battery need be with same batteries in parallel connection group point glue; Make a little integral body; No longer bonding processing need be carried out between the series battery,, only support need be opened even a certain like this string battery pack breaks down; Cut off brace, battery pack after will changing again and nickel strap spot welding again can be accomplished the maintenance of battery.
Adopt the battery pack of self-contained battery and baffle support, have the low advantage of cost: after the support die sinking, the cost increase of support equipped seldom.And after adopting the battery pack support, can reduce the use amount of other insulating material, and simplify the production process of battery pack, improved the rate of finished products of producing.
In view of above advantage, put together and can solve middle the biggest problem of battery combination so that battery pack has higher reliability, stability, fail safe, improve the useful life of battery pack.
Being merely preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should be technological category of the present invention.
Claims (4)
1. the lithium battery pack support of a flat structure, it is characterized in that: it is propped up by two battery pack outriggers, two battery pack intermediate supports and baffle and is configured to; Wherein:
Two battery pack outriggers are mirror image and are symmetrical set, and they all have inside battery grooves, and the shape of battery grooves is consistent with the combined shaped of battery pack; Has the positioning convex point that is used for being stuck in the battery pack space in this battery grooves; Two battery pack outrigger inner top side have the guide pile and the fixed screw room of baffle support;
Two battery pack intermediate supports are identical with battery pack outrigger structure, only reduced guide pile and fixed screw room;
The outer protruding part that makes a circle that is positioned at battery pack outrigger and battery pack intermediate support forms the vibrationproof isolated border;
Battery pack outrigger and battery pack intermediate support are provided with through hole; This through hole is the through hole that is used for battery entire bracket fixed screw, after the whole battery group assembled, uses stock screw and nut; Battery case is carried out fastening, like this battery case and inner battery are constituted an integral body;
One baffle support is fixed between the two battery pack outrigger inner top side; Have the through hole that is used for nickel strap is incorporated into baffle on it, be used for spud pile that baffle support and baffle are secured together, be secured together baffle and baffle support with self-tapping screw; And baffle fairlead.
2. the lithium battery pack support of flat structure according to claim 1, it is characterized in that: the inside grooves of described battery is added with foam.
3. the lithium battery pack support of flat structure according to claim 1 and 2 is characterized in that: the wire bonds that has the cell voltage sampling on the described battery pack outrigger is used square opening.
4. the lithium battery pack support of flat structure according to claim 1 and 2 is characterized in that: when described lithium battery pack support uses, when battery in groups after; Respectively from cephlad-caudal; Battery is put into support, thereby battery pack is fixed as a firm integral body, the outer protruding part that makes a circle of support; Play the effect that the outer box of battery pack and battery is isolated; Prevent the friction of battery pack and shell, baffle is placed in the baffle support, and baffle support and battery pack support can be connected to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102008488A CN101752538B (en) | 2009-12-25 | 2009-12-25 | Lithium battery pack support with flat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102008488A CN101752538B (en) | 2009-12-25 | 2009-12-25 | Lithium battery pack support with flat structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101752538A CN101752538A (en) | 2010-06-23 |
| CN101752538B true CN101752538B (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102008488A Expired - Fee Related CN101752538B (en) | 2009-12-25 | 2009-12-25 | Lithium battery pack support with flat structure |
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| Country | Link |
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| CN (1) | CN101752538B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280602B (en) * | 2011-06-27 | 2013-08-21 | 东风汽车公司 | Power cell module arrangement connecting assembling structure |
| CN103176133A (en) * | 2011-12-26 | 2013-06-26 | 河南科隆集团有限公司 | Novel battery SOC (System On Chip) acquisition signal plate |
| CN102447135A (en) * | 2012-01-07 | 2012-05-09 | 深圳市格瑞普电池有限公司 | Dynamic lithium ion battery pack assembling structure suitable for electric vehicles |
| CN103855337B (en) * | 2012-12-05 | 2016-03-30 | 原瑞电池科技股份有限公司 | Battery mounting |
| CN103928642A (en) * | 2013-01-16 | 2014-07-16 | 微宏动力系统（湖州）有限公司 | Flexible package battery bracket |
| CN104269503B (en) * | 2014-10-15 | 2017-06-09 | 上海修源网络科技有限公司 | A kind of cylindrical battery group of adopting guiding structure |
| CN105406002A (en) * | 2015-12-28 | 2016-03-16 | 天津力神特种电源科技股份公司 | Novel modularized battery pack |
| CN106058117B (en) * | 2016-08-18 | 2018-06-05 | 系统电子科技（镇江）有限公司 | A kind of battery core module of improvement |
| CN106784968A (en) * | 2016-12-21 | 2017-05-31 | 天津力神特种电源科技股份公司 | The lithium battery group that a kind of many supporting structures are fixed |
| CN106784468A (en) * | 2016-12-21 | 2017-05-31 | 天津力神特种电源科技股份公司 | A kind of novel circular battery housing structure |
| CN207021349U (en) * | 2017-06-19 | 2018-02-16 | 浙江特康电子科技有限公司 | A kind of structural assembly of lithium battery group and protection board |
| CN114188644A (en) * | 2021-11-16 | 2022-03-15 | 深圳市海洋王照明工程有限公司 | Battery bracket and battery module |
-
2009
- 2009-12-25 CN CN2009102008488A patent/CN101752538B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101752538A (en) | 2010-06-23 |
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Granted publication date: 20120307 Termination date: 20191225 |