CN205882030U - Lithium ion battery pack - Google Patents

Lithium ion battery pack Download PDF

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Publication number
CN205882030U
CN205882030U CN201620867474.0U CN201620867474U CN205882030U CN 205882030 U CN205882030 U CN 205882030U CN 201620867474 U CN201620867474 U CN 201620867474U CN 205882030 U CN205882030 U CN 205882030U
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CN
China
Prior art keywords
battery
monomer
battery core
lithium ion
pressing plate
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Withdrawn - After Issue
Application number
CN201620867474.0U
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Chinese (zh)
Inventor
王宏栋
方振华
王宏忠
李飞
兰海侠
朱彬
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Liaoning Branch Of New Energy Ltd By Share Ltd
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Liaoning Branch Of New Energy Ltd By Share Ltd
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Priority to CN201620867474.0U priority Critical patent/CN205882030U/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

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  • Battery Mounting, Suspending (AREA)

Abstract

The utility model discloses a lithium ion battery pack, this battery package is equipped with battery module and battery package electronic parts including the battery box in the battery box, battery module and battery package electronic parts fix in the battery box from three -dimensional direction, battery module includes the square monomer electricity core of a plurality of laminating superpose, with the clamp plate that is located the battery module both ends, the insulation board that separates monomer electricity core and clamp plate, gu the pull rod and the brace of fixed pressing plate and monomer electricity core, every monomer electricity core is fixed in battery module from three -dimensional direction through the monomer electricity core equipment frame that corresponds, this lithium ion battery pack has overcome the above -mentioned defect that exists among the prior art, battery package anti vibration, strong shock resistance, the displacement problem that electric core inflation leads to can not take place in the use, and have good heat conduction and converge the performance, the utility model discloses the battery package has simple structure, and equipment convenient operation has realized modularized design and equipment, and the suitability is strong, low in production cost.

Description

A kind of lithium ion battery bag
Technical field
This utility model relates to lithium ion battery group technology field, particularly relates to a kind of by rectangular lithium ion monomer battery core The battery bag of composition.
Background technology
Under the background that global energy and environmental problem are the most serious, green energy resource causes concern greatly, by lithium from Sub-battery applications becomes study hotspot in electric automobile.Battery core is to must take into when designing electric vehicle battery system in groups Problem.Rectangular lithium ion battery in use due to electrode expansion, can cause the volumetric expansion of battery thus position occurs Move, this expansion of battery must be limited during use to guarantee safety.Electric automobile operating mode in use is multiple Miscellaneous, face and accelerate frequently and vibration, it is therefore necessary to ensure that each battery and electronic unit have with car body on three-dimensional Good is fixing, makes battery have good shock resistance and shock resistance.The model difference of electric vehicle battery system, for Different battery systems, the set of cells frame that frames up does not has versatility, must design according to the different combinations of battery in production Different framework so that manufacturing cost increases.
Utility model content
Utility model to solve the technical problem that: providing a kind of lithium ion battery bag, this lithium ion battery bag overcomes Drawbacks described above present in prior art, battery bag antivibration, impact resistance are strong, battery core will not be occurred to expand lead during use The displacement problem caused, and there is good heat conduction and performance of confluxing, this utility model battery bag has simple in construction, assembly operation Convenient, it is achieved that modularized design and assembling, the suitability is strong, and production cost is low.
The technical scheme that solution technical problem is taked: a kind of lithium ion battery bag, including battery case, sets in battery case Battery module and battery bag electronic unit, described battery module and battery bag electronic unit is had to be fixed on battery from three-dimensional In case, described battery module includes the square individual battery core that multiple laminating is stacked, and is positioned at the pressing plate at battery module two ends, by single The pull bar of the insulation board that body battery core and pressing plate separate, fixation clip and monomer battery core and tie rod, each monomer battery core is by correspondence Monomer battery core assemble framework be fixed in battery module from three-dimensional.
As improvement of the present utility model: described monomer battery core assembles framework by opposed upper frame and underframe two parts Constituting, described upper frame and underframe, in " ∏ " type, are provided with monomer battery core interface, upper ledge at upper frame and underframe opposite side Two ends upper and lower with the monomer battery core grafting respectively of frame and underframe coordinates, and described upper frame wraps the non-stacked patch in monomer battery core top Conjunction face, underframe wraps the non-stacked binding face in monomer battery core bottom, and described upper frame can accommodate in top drilling, bore size The positive and negative electrode pole of monomer battery core, described assembling framework has the through hole through pull bar.
As further improvement of the utility model: described battery module also includes by the non-binding face in monomer battery core both sides not The insulating heat-conductive pad covered with underframe parcel position by upper frame.
Being provided with insulating heat-conductive pad inside the monomer battery core interface of upper frame and underframe and fix groove, described insulation is led Hot pad is arranged on battery module two side plane, is close to monomer battery core surface, and its top is arranged on upper frame insulating heat-conductive pad In fixing gap between groove and monomer battery core surface, its underpart is arranged on underframe insulating heat-conductive pad and fixes groove and monomer electricity In gap between wicking surface.
Further improve as of the present utility model: the profile of described pressing plate and monomer battery core install assemble after framework The projection profile that monomer battery core is stacked in laminating plane is consistent, has at the top of pressing plate and bottom and leading on upper and lower framework Hole site correspondence pull bar fixing hole.
Having fin on described pressing plate, the two ends of tie rod are screwed with the fin on battery module two end clamp plate, institute Stating tie rod makes insulating heat-conductive pad be close to the non-coating surface of monomer battery core between upper frame and underframe.
Further improve as of the present utility model: described battery case is stacked on two sidewalls in direction in monomer battery core There is battery module to fix groove and boss, described boss has screw hole, the pressing plate at described battery module two ends has and is parallel to The connection sheet of battery case sidewall convex platform, the sheet that connects on described pressing plate is screwed with the boss on battery case, from And realize battery module fixing with battery case in the height direction.
Described battery case sidewall upper battery modules fixes groove just can accommodate the fin on described pressing plate, it is achieved thereby that Battery module and casing fixing on monomer battery core width.
Described battery case is stacked between the sidewall of two, direction the battery module of correspondence in monomer battery core, and to fix the distance of groove firm The size between two pressing plates of battery module can be accommodated well, it is achieved thereby that battery module is stacked in monomer battery core with battery case Fixing on direction.
As another kind of improvement of the present utility model: described battery bag electronic unit is fixed in fixed plate, described fixing Plate is fixed in battery case by the fixed plate draw-in groove on battery case sidewall, and fixed plate is provided with connection sheet, described connection sheet with Fixed plate draw-in groove fixing lug boss on battery case sidewall is screwed.
Further, described battery bag also includes the heat-conducting system between battery module, is provided with heat-conducting system on pressing plate Mounting interface, described heat-conducting system is air-cooled, liquid hot and cold pipe heat conduction or multiple heat-conducting mode is combined into mixing heat conduction system System.
Further, in each battery module of battery bag, monomer battery core arrangement mode is consistent, positive and negative electrode conductive path one Cause.
Further, described insulation board monomer battery core and pressing plate separated, its profile is consistent with pressing plate.
Further, described pressing plate is ambroin pressing plate or metal platen, is provided with insullac on the surface of metal platen Layer.
Further, described pressing plate there is reinforcement.
Further, described pull bar, tie rod and screw scribble insullac, scribble screw thread fastening glue at described fastened by screw, It is jam nut that described fixation clip connects the screw of sheet and battery case boss.
Beneficial effect: owing to have employed described battery module and battery bag electronics in lithium ion battery bag of the present utility model Parts are fixed in battery case from three-dimensional, and it is double three-dimensional solid that monomer battery core is fixed in battery module from three-dimensional Mould-fixed, makes battery bag of the present utility model have more preferable antivibration, impact resistance by force, makes employing battery of the present utility model bag Automobile be adapted to various complex road condition, owing to have employed the square individual electricity that described battery module includes that multiple laminating is stacked Core, and it is positioned at the pressing plate at battery module two ends, insulation board monomer battery core and pressing plate separated, fixation clip and monomer battery core Pull bar and tie rod, each monomer battery core assembles framework by corresponding monomer battery core and is fixed in battery module from three-dimensional Technical scheme, battery core in use will not be occurred in stacked direction to expand the displacement problem that causes, and have good Heat conduction and performance of confluxing, this utility model battery bag has simple in construction, easy to operate, it is achieved that modularized design and assembling, The suitability is strong, and production cost is low.Framework is assembled by opposed upper frame and underframe two owing to have employed described monomer battery core Divide the technical characteristic constituted, the corresponding upper frame of each monomer battery core and underframe, therefore can realize assembling flexibly, and And overcome constrained rigidly to battery core of integral frame in prior art, easily cause stress when monomer battery core thermal expansion and amass Poly-, the dangerous defect of blast is there is when thermal failure, the split type framework in this utility model can guide battery core thermal expansion Produce stress slowly discharge along monomer battery core short transverse, eliminate explosion danger, battery core short transverse small expansion not Battery parameter can be affected, make battery operated more stable, and the battery core that each assembling framework can adapt to correspondence automatically expands, individual The expansion of other battery core does not affect other monomer battery core and assembles framework, owing to being limited the structure of upper frame and underframe Fixed, have employed described upper frame and wrap the non-stacked binding face in monomer battery core top, it is non-that underframe wraps monomer battery core bottom The technical characteristic of stacked binding face, on the one hand makes adjacent monomer battery core to fit tightly, reduces the space of battery module, Heat-conducting effect between reinforcing monomer battery core, allows heat at the internal fast uniform of battery module, makes the Temperature Distribution of battery module more Uniformly, beneficially battery module keeps optimal performance and used life, is on the other hand wrapped in the framework of non-stacked binding face Also provide machinery and insulation protection for monomer battery core, further enhancing the battery bag adaptation ability to adverse circumstances.Due to Have employed described battery module also to include not covered the non-binding face in monomer battery core both sides with underframe parcel position by upper frame The technical characteristic of insulating heat-conductive sheet, insulating heat-conductive pad is polycarbonate heat conducting membranes, can be by electricity while insulation The heat that pond module produces effectively is transmitted to heat-conducting system, the most more have absorption battery module dimensional tolerance, resiliency superior, Shock proof function, assembles framework with insulating heat-conductive sheet and fails wrapping portion and carry out heat conduction and insulation protection, make battery battery core Being respectively provided with insulating protection outside module depolarization post, the safety making battery is more preferable.Owing to have employed insulating heat-conductive pad and upper frame With the fixed form of underframe grafting, make insulating heat-conductive pad be adapted to underframe and underframe that monomer thermal expansion causes it Between distance change, it is to avoid battery core expand time insulating heat-conductive pad tear and cause monomer battery core sidewall exposed, heat conductive insulating imitate The most more stable.Flat in the stacked laminating of monomer battery core owing to have employed after the profile of described pressing plate installs assembling framework with monomer battery core Projection profile on face is consistent, has pull bar corresponding with the lead to the hole site on upper and lower framework at the top of pressing plate with bottom and fixes Having fin on hole, and described pressing plate, the two ends of tie rod are screwed with the fin on battery module two end clamp plate, described Tie rod makes insulating heat-conductive pad be close between upper frame and underframe the technical characteristics such as the non-coating surface of monomer battery core, ensure single Body battery core is fixed, is dispelled the heat, while insulation effect, optimize shape and the structure of battery module further, owing to reasonably limiting The location structure determined on the installation fixed structure of the battery module in battery case and battery module makes battery bag of the present utility model Achieve battery module three-dimensional fixing in battery case, and produce, easy to assembly, low cost of manufacture.Owing to reasonably limiting Described battery bag electronic unit fixed structure, improves the resistance to shock of battery bag electronic unit, makes battery bag electronic unit Working more stable, reliable, service life is longer.Owing to further defining heat-conducting system, described insulating heat-conductive pad is at monomer Heat is conducted, it is ensured that it is suitable that the heat balance between battery module makes monomer battery core be operated between battery core and heat-conducting system In temperature range, thus reach optimal performance.Owing to have employed monomer battery core arrangement mode one in each battery module of battery bag Cause, the technical characteristic that positive and negative electrode conductive path is consistent, it is ensured that the uniformity of battery module internal current distribution, Er Qiefang The connection of monomer battery core electrode.Owing to have employed profile and the pressing plate of described insulation board monomer battery core and pressing plate separated Unanimously, and to have employed described pressing plate be metal platen or ambroin pressing plate, is provided with insulating lacquer layer on the surface of metal platen Skill technical characteristic, on the one hand enhances insulation effect, and another conveniently also makes battery bag of the present utility model can use machinery The more preferable non-insulating material of intensity is made pressing plate and is carried out assembled battery module, makes battery module be stacked the anti-swollen of direction in monomer battery core Bulging deformation ability is higher.Owing to have employed described pull bar, tie rod scribbles insullac with screw, scribbles screw thread at described fastened by screw Fastening glue, described fixation clip connects the technical characteristic that screw is jam nut of sheet and battery case boss, makes in battery bag each Parts connect fixing more firm, insulate more reliable, use part to get loose in adverse circumstances, and insulation will not be lost efficacy, battery The adaptation ability of bag is higher.
Lithium ion battery bag of the present utility model, for different battery modules, has good autgmentability, has saved and opened Sending out cost, control battery displacement the most that may be present, also have homogeneous current distribution, battery pack structure is compact, group The advantage filling, safeguarding, reclaim simplicity.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, with following Detailed description of the invention be used for explaining this utility model together, but be not intended that restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the explosive view of lithium ion battery bag of the present utility model
Fig. 2 is the structural representation of battery module in lithium ion battery bag of the present utility model;
Fig. 3 is the explosive view of battery module in lithium ion battery bag of the present utility model;
Fig. 4 is the structural representation of lithium ion battery bag electronic unit of the present utility model and fixed plate;
Fig. 5 is monomer battery core and upper frame, the installation diagram of underframe in lithium ion battery bag of the present utility model;
Fig. 6 is upper frame, the structural representation of underframe in lithium ion battery bag of the present utility model;
Fig. 7 is the structural representation of battery case in lithium ion battery bag of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail.It should be appreciated that described herein specifically Embodiment is merely to illustrate and explains this utility model, is not limited to this utility model.
It should be noted that " forward and backward ", " left and right ", " upper and lower " that used in this part etc. represent the term in orientation Wherein, what is called " forward and backward " represents that thickness direction and monomer battery core along cell are stacked direction, i.e. in accompanying drawing in the accompanying drawings X-direction;So-called " left and right " direction represents the Y-direction in the width along cell, i.e. accompanying drawing in the accompanying drawings;So-called " upper and lower " represents the Z-direction in the short transverse along cell, i.e. accompanying drawing in the accompanying drawings.These terms are the most for convenience of description And use, it is impossible to being construed to restriction of the present utility model, protection domain of the present utility model is as the criterion with claim.
As it is shown in figure 1, lithium ion battery bag 1 of the present utility model is by battery module 2, battery bag electronic unit 3, battery case 4 compositions.
As shown in Figure 2 and Figure 3, described battery module 2 is assembled by n the monomer battery core 5 being arranged in parallel, n monomer battery core Framework 6 and n underframe 7, two pressing plates 8 at battery module 2 two ends, 2 liang of end clamp plates 8 of self-contained battery module and monomer battery core 5 Three pull bars 9 with four tie rods 10, monomer battery core 5 and pressing plate 8 are separated 2 insulation boards 11, by non-for monomer battery core both sides The insulating heat-conductive sheet 12 that binding face is not covered by upper frame and underframe parcel position forms.
As shown in Figure 4, described battery bag electronic unit 3 is fixed in fixed plate 13, and described fixed plate 13 has connection sheet 131。
As shown in Figure 5, Figure 6, described upper frame 6 is buckled in monomer battery core 5 top.Described upper frame 6 size in the X direction With monomer battery core 5 consistent size in the X direction.Described upper frame 6 has two sides 601 in the Y direction, inside dual-side it Between constitute monomer battery core interface, inside said two side 601 between size compared with monomer battery core 5 size in the Y direction slightly Greatly, monomer battery core 5 can just be blocked in the Y direction.Described upper frame 6 crown center has a boss 602, described boss 602 Having manhole 603 in the X direction, described manhole 603 is in order to through pull bar 9.Two through holes are arranged at described upper frame 6 top 604, described through hole 604 is the positive and negative electrode pole position of monomer battery core 5.Described upper frame 6 has two below two sides 601 Groove 605 fixed by individual insulating heat-conductive pad, and insulating heat-conductive pad fixes groove 605 in order to block the top of insulating heat-conductive pad 12.Institute State upper frame 6 by remaining position insulation in addition to Positive Poles and negative pole pole of the X/Y plane on battery module 2 top.
Described underframe 7 is buckled in monomer battery core 5 bottom.Described underframe 7 size in the X direction and monomer battery core 5 are at X Consistent size on direction, described underframe 7 has two sides 701 in the Y direction, inside dual-side between constitute monomer battery core Interface, inside said two side 701 between size bigger compared with monomer battery core 5 size in the Y direction, and can just be at Y Monomer battery core 5 is blocked on direction.Described underframe 7 two bottom sides is respectively arranged with a boss 702, and described boss 702 has circle in the X direction Shape through hole 703, described manhole 703 is in order to through pull bar 9.Described underframe 7 has two insulation below two sides 701 Heat-conducting pad fixes groove 704, and insulating heat-conductive pad fixes groove 704 in order to block the bottom of insulating heat-conductive pad 12.Described lower frame Frame 7 is by the X/Y plane of battery module 2 bottom and XZ planar insulative.
Described monomer battery core 5 buckles upper frame 6 and underframe 7, and then n only buckles the monomer electricity of upper frame 6 and underframe 7 Core 5 is arranged in parallel in X direction so that it is Positive Poles is in phase the same side, and negative pole pole is in phase the same side.N monomer battery core along X A piece of insulation board 11 is respectively pasted in outermost two faces, direction.
The described insulation board 11 overall dimensions in YZ plane and monomer battery core 5 are buckled after upper frame 6 and underframe 7 at YZ Projection profile consistent size in plane.Described insulation board 11 was provided with and on upper frame, underframe for leading to through pull bar Three circular holes that hole site is corresponding.Described insulation board 11 is by the YZ planar insulative of battery module 2.
The outside of described insulation board 11 is pressing plate 8, and described pressing plate 8 is consistent with insulation board 11 at the overall dimensions of YZ plane. Described pressing plate 8 is provided with the pull bar fixing hole corresponding with three circular hole positions on insulation board 11.Described pressing plate 8 both sides are along X side To there being fin 801.There is connection sheet 802 bottom described pressing plate 8, described connection sheet 802 has circular hole.
Described three pull bars 9 are each passed through the top circle of the through hole 603 on n monomer battery core 5 upper frame 6, insulation board 11 Through hole 703 on hole, the top pull bar fixing hole of pressing plate 8 and n monomer battery core 5 underframe 7, the bottom circular hole of insulation board 11, The bottom pull bar fixing hole of pressing plate 8.Three pull bar two ends are fixed by nut 14, and are coated with screw thread fastening glue on nut 14.Thus The X-direction of battery module 2 is fixed with Z-direction.
The side of monomer battery core 5 is close to by insulating heat-conductive pad 12, and its top is inserted in upper frame insulating heat-conductive pad and fixes groove And in the gap between monomer battery core surface, its underpart be inserted in underframe insulating heat-conductive pad fix groove and monomer battery core surface it Between gap in.Described insulating heat-conductive pad all contacts with every monomer battery core in battery module, and contact position and area Completely the same, it is ensured that the uniformity of heat conduction.Monomer battery core 5 is insulated on XZ direction by insulating heat-conductive pad 12.Thus, battery The conductive part of module 2 only exposes Positive Poles and negative pole pole, and remainder is equal in six planes of XY, XZ, YZ Insulation is good.Described insulating heat-conductive pad preferably employs Merlon non-bromine flame-retardant dielectric film and makes so that it is can absorb electricity Pond module size tolerance, resiliency function superior, shock proof.
Two pressing plates 8 on battery module 2 are connected by tie rod 10, and tie rod 10 is fixed on the wing of pressing plate 8 by screw 15 On sheet 801, and on screw 15, it is coated with screw thread fastening glue, battery module 2 is fixed in the Y direction.Thus, battery module achieves Fixing of X, Y, Z three-dimensional, and limit the battery module expansion in X-direction.
As it is shown in fig. 7, have battery module to fix groove 401, described battery on two sidewalls that described battery case 4 is in the Y direction Module fixes groove 401 just can accommodate the fin 801 of pressing plate 8.Said two fixes the centre-to-centre spacing between groove 401 just for pressure Centre-to-centre spacing between 8 two fins 801 of plate.On two sidewalls of described battery case corresponding battery module fix between groove 401 away from From the outermost distance of pressing plate 8 fin 801 being just battery module 2 two ends.Thus, fixing groove in X-direction with Y-direction by electricity Pond module 2 is fixed.Described battery case 4 has boss 402 on sidewall, and described boss 402 has screw hole.Will by jam nut Pressing plate 8 bottom tabs 802 is connected with the bottom boss 402 of battery case 4, thus cell battery module 2 is solid in z-direction Fixed.
Battery bag electronic unit is had to fix groove 403, described battery bag electricity on described battery case 4 two sidewalls in the Y direction Subassembly fixes groove 403 just can accommodate the battery bag electronic unit fixed plate 13 thickness in X-direction.Described battery case 4 liang On individual sidewall, battery bag electronic unit just fixes the distance between groove 403 for battery bag electronic unit fixed plate 13 in the Y direction The distance at two ends.Thus, battery bag electronic unit fixes groove 403 in X-direction and Y-direction by battery bag electronic unit fixed plate 13 Fixing.The sheet 131 that connects in described fixed plate 13 is connected by jam nut with the boss 404 on battery case sidewall, it is achieved Z side To fixing.Thus achieve battery bag electronic unit fixing on three-dimensional.
Preferred implementation of the present utility model described in detail above, but, this utility model is not limited to above-mentioned reality Execute the detail in mode, in technology concept of the present utility model, the technical solution of the utility model can be entered The multiple simple variant of row, these simple variant belong to protection domain of the present utility model.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, this utility model is to respectively Plant possible compound mode to illustrate the most separately.

Claims (16)

1. a lithium ion battery bag, including battery case, is provided with battery module and battery bag electronic unit in battery case, and it is special Levy and be: described battery module and battery bag electronic unit are fixed in battery case from three-dimensional, and described battery module includes The square individual battery core that multiple laminatings are stacked, and be positioned at battery module two ends pressing plate, monomer battery core and pressing plate are separated exhausted Listrium, the pull bar of fixation clip and monomer battery core and tie rod, each monomer battery core by corresponding monomer battery core assemble framework from It is fixed in battery module on three-dimensional.
Lithium ion battery bag the most according to claim 1, is characterized in that: described monomer battery core assembles framework by opposed upper Framework and underframe two parts are constituted, and described upper frame and underframe, in " ∏ " type, are provided with at upper frame and underframe opposite side Monomer battery core interface, two ends upper and lower with the monomer battery core grafting respectively of upper frame and underframe coordinates, and described upper frame wraps The non-stacked binding face in monomer battery core top, underframe wraps the non-stacked binding face in monomer battery core bottom, and described upper frame is on top Portion's perforate, bore size can accommodate the positive and negative electrode pole of monomer battery core, described assembling framework has the through hole through pull bar.
Lithium ion battery bag the most according to claim 2, is characterized in that: described battery module also includes monomer battery core two The insulating heat-conductive pad that the non-binding face in side is not covered with underframe parcel position by upper frame.
Lithium ion battery bag the most according to claim 3, is characterized in that: in the monomer battery core grafting of upper frame and underframe Being provided with insulating heat-conductive pad inside Kou and fix groove, described insulating heat-conductive pad is arranged on battery module two side plane, is close to monomer Battery core surface, its top is arranged in the gap that upper frame insulating heat-conductive pad is fixed between groove and monomer battery core surface, under it Portion is arranged in the gap that underframe insulating heat-conductive pad is fixed between groove and monomer battery core surface.
Lithium ion battery bag the most according to claim 4, is characterized in that: the profile of described pressing plate and monomer battery core installation group The projection profile being stacked in laminating plane in monomer battery core after frame that frames up is consistent, has with upper and lower at the top of pressing plate and bottom Lead to the hole site correspondence pull bar fixing hole on framework.
Lithium ion battery bag the most according to claim 5, is characterized in that: have fin on described pressing plate, the two ends of tie rod with Fin on battery module two end clamp plate is screwed, and described tie rod makes insulating heat-conductive pad be close to upper frame and underframe Between the non-coating surface of monomer battery core.
Lithium ion battery bag the most according to claim 6, is characterized in that: described battery case is stacked direction in monomer battery core There is battery module to fix groove and boss on two sidewalls, described boss has screw hole, on the pressing plate at described battery module two ends Having the connection sheet being parallel to battery case sidewall convex platform, the sheet that connects on described pressing plate passes through screw with the boss on battery case Fixing, thus realize battery module fixing with battery case in the height direction.
Lithium ion battery bag the most according to claim 7, is characterized in that: described battery case sidewall upper battery modules fixes groove Just can accommodate the fin on described pressing plate, it is achieved thereby that battery module and casing consolidating on monomer battery core width Fixed.
Lithium ion battery bag the most according to claim 8, is characterized in that: described battery case is stacked direction two in monomer battery core Battery module corresponding between individual sidewall fixes the distance of groove just can accommodate the size between two pressing plates of battery module, from And achieve battery module with battery case fixing that monomer battery core is stacked on direction.
10. according to the lithium ion battery bag described in any one of claim 1 to 9, it is characterized in that: described battery bag electronic unit is solid Being scheduled in fixed plate, described fixed plate is fixed in battery case by the fixed plate draw-in groove on battery case sidewall, and fixed plate sets Connection sheet, described connection sheet is had to be screwed with the fixed plate draw-in groove fixing lug boss on battery case sidewall.
11. lithium ion battery bags according to claim 10, is characterized in that: described battery bag also includes between battery module Heat-conducting system, pressing plate is provided with the mounting interface of heat-conducting system, described heat-conducting system be air-cooled, liquid hot and cold pipe heat conduction or The mixing heat-conducting system that multiple heat-conducting mode is combined into.
12. lithium ion battery bags according to claim 10, is characterized in that: monomer battery core row in each battery module of battery bag Row mode is consistent, and positive and negative electrode conductive path is consistent.
13. lithium ion battery bags according to claim 10, is characterized in that: described monomer battery core and pressing plate are separated exhausted Listrium, its profile is consistent with pressing plate.
14. lithium ion battery bags according to claim 13, is characterized in that: described pressing plate is ambroin pressing plate or metal Pressing plate, is provided with insulating lacquer layer on the surface of metal platen.
15. lithium ion battery bags according to claim 14, is characterized in that: have reinforcement on described pressing plate.
16. lithium ion battery bags according to claim 15, is characterized in that: described pull bar, tie rod and screw scribble insulation Paint, scribbles screw thread fastening glue at described fastened by screw, it is locking spiral shell that described fixation clip connects the screw of sheet and battery case boss Silk.
CN201620867474.0U 2016-08-12 2016-08-12 Lithium ion battery pack Withdrawn - After Issue CN205882030U (en)

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CN113131065A (en) * 2021-03-15 2021-07-16 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) High specific energy lithium battery device
CN113258187A (en) * 2021-04-01 2021-08-13 王奔 Battery pack of new energy automobile
CN113471585A (en) * 2021-07-05 2021-10-01 广东戎科技术有限公司 Battery with locking recognition and anti-theft functions
CN113839148A (en) * 2020-06-05 2021-12-24 欣旺达电动汽车电池有限公司 Battery module and bus welding method thereof
WO2022227774A1 (en) * 2021-04-30 2022-11-03 宁德时代新能源科技股份有限公司 Battery and electric device

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Publication number Priority date Publication date Assignee Title
CN113839148A (en) * 2020-06-05 2021-12-24 欣旺达电动汽车电池有限公司 Battery module and bus welding method thereof
CN113839148B (en) * 2020-06-05 2023-09-12 欣旺达电动汽车电池有限公司 Battery module and busbar welding method thereof
CN113131065A (en) * 2021-03-15 2021-07-16 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) High specific energy lithium battery device
CN113258187A (en) * 2021-04-01 2021-08-13 王奔 Battery pack of new energy automobile
WO2022227774A1 (en) * 2021-04-30 2022-11-03 宁德时代新能源科技股份有限公司 Battery and electric device
CN113471585A (en) * 2021-07-05 2021-10-01 广东戎科技术有限公司 Battery with locking recognition and anti-theft functions

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