CN105679975A - Soft-package power battery module - Google Patents

Abstract

The invention relates to the field of a battery, in particular to a soft-package power battery module. The battery module comprises tray end covers, battery cores, single trays, tray side connection plates, battery core conductive connection sheets and tray connection buckles, wherein the plurality of single trays and the tray end covers at the two ends are assembled to form a tray main body by the tray side connection plates and the tray connection buckles, the battery cores are fixedly embedded between the tray end covers and the single trays as well as between every two adjacent single trays, the tray side connection plates are clamped and connected onto the side surface after the tray end covers and the single trays are assembled, the battery core conductive connection sheets comprise an upper layer and a lower layer, and electrodes of all battery cores are connected together by a plurality of bolts. The battery module is simple in structure and is convenient to install, and the subsequent maintenance and repair of battery modules are facilitated; and the key lies that the battery modules can be randomly combined without limitation of quantity in series/parallel connection, the design cost and the die cost are greatly reduced, product serialization and standardization are promoted, pressure can be timely relieved when the battery encounters an accident, and no potential risk is generated.

Description

A kind of soft bag power cell module

Technical field

The present invention relates to field of batteries, relate to a kind of soft bag power cell module specifically.

Technical background

Owing to lithium-ion-power cell has the advantages such as energy density is big, security good, weight is light, have extended cycle life, now it is widely used in accumulator system. Especially in electromobile energy storage field, lithium-ion-power cell has become first-selected battery variety. Owing to most lithium-ion-power cell monomer voltage is lower at present, capacity is less, can not meet the power demand of whole car, it is thus desirable to become to meet the battery modules of whole car power demand by multiple monomer battery core series-parallel connection.

Power cell module is widely used in pure power or hybrid vehicle, module (such as short circuit, extrudes, overcharges, crosses and put) inside battery generation vigorous reaction under some specific external force or Special Circumstances and causes that cell internal pressure increases, temperature raises, serious words can cause catches fire and explodes, and the security of electromobile is caused great threat.

Mainly there is following shortcoming in existing soft bag power battery assembling mode: 1, assembling technique loaded down with trivial details, web member is more, and all very effort and cost are higher for assembling and maintenance; 2, limiting by fixed mould, can only be fixed the battery assembling of quantity, range of application is narrow; 3, because of reasons in structure can not the timely pressure release when battery something unexpected happened, there is potential safety hazard.

For overcoming above shortcoming, therefore develop new soft-package battery package technique.

Summary of the invention

The object purport of the present invention overcomes the shortcoming of existing soft-package battery module technology, a kind of novel soft bag power cell module is provided, this kind of module structure be simple, easy for installation, is conducive to maintenance and the maintenance of battery modules from now on, key is arbitrarily to combine by series and parallel number quantitative limitation, greatly reduce design cost and die cost, be conducive to Realization of Product seriation and stdn, can the timely pressure release when battery something unexpected happened, it does not have potential safety hazard.

The object of the present invention is achieved like this, this battery modules comprises bracket end cap, battery core, bracket monomer, bracket side web plate, electric core conductive connection piece and bracket connecting clamp are buckled, the bracket end cap at described multiple bracket monomer and two ends forms a bracket main body after being assembled by bracket side web plate and bracket connecting clamp button, described battery core assembly is fixed between bracket end cap and bracket monomer and adjacent two bracket monomers, described bracket side web plate card load connects the side of bracket end cap after assembling and bracket monomer, described electric core conductive connection piece divides upper and lower two layers, by multiple screw by the Electrode connection in each battery core together.

Described bracket end cap and bracket monomer are symmetrily processed with two heat radiation bar holes on each frame of rectangle frame structure, corresponding two sides, it is processed with spacing pickup groove between two heat radiation bar holes of side, with fixed lobe point in each spacing pickup groove, the upper side frame of described bracket end cap and bracket monomer covers with end plate with individual fixed lobe, described carrier end with two fixed lobes, lower frame.

The side of each fixed lobe described is with spacing preiection, and hole, with the limited impression mated mutually with spacing preiection, is also withheld with card above described fixed lobe in corresponding side.

The card of each fixed lobe that described bracket connecting clamp buckle is contained between bracket end cap and bracket monomer or adjacent two bracket monomers is withheld in hole.

With raised points hole clipping on described bracket side web plate, bracket end cap and the assembling of multiple bracket monomer are fixed together by described bracket side web plate by the fixed lobe point in the spacing pickup groove of raised points hole clipping and bracket end cap, bracket monomer side.

Described multiple lithium-ion electric core can not arbitrarily combine assembly by series-parallel connection number quantitative limitation and be fixed between bracket end cap and bracket monomer or adjacent two bracket monomers.

The present invention has the following advantages and positively effect:

1, present configuration simple, easy for installation, be conducive to maintenance and the maintenance of battery modules from now on, key is arbitrarily to combine by series and parallel number quantitative limitation, greatly reduce design cost and die cost, be conducive to Realization of Product seriation and stdn.

2, electric core conductive connection piece of the present invention is copper nickel complex form, is divided into upper and lower two layers, it is intended that better contacts with cell polar ear to make conductive connecting piece thus reduces contact resistance, it is to increase electric current passes through ability; Leave heat dissipation wind channel (heat radiation bar hole) between after battery core connection and it is convenient to the object that the cooperation of the fan with battery management system realizes wind-cooling heat dissipating.

3, for can not this hidden danger of pressure release in time under battery something unexpected happened in the present invention, bracket side web plate has V-type groove, interior angle by bracket connecting clamp button is processed into right angle simultaneously, namely in structure design, have employed the form by pressure easy fracture, fracture can be there is thus relief pressure at the stress place of concentrating in time when battery meets accident and produces pressure, ensure that the security of battery modules in the situation of having an accident.

3, the present invention adopts multiple bracket monomer assembly to fix battery core, adopt card to buckle between each bracket monomer to be connected and fixed, described multiple lithium-ion electric core can not arbitrarily combine assembly by series-parallel connection number quantitative limitation and be fixed in bracket, and connected by upper and lower conductive connecting piece, buckle finally by card and realize being fixedly connected with of module entirety. This kind of project organization is simple, easy to connect, and be conducive to maintenance in the future and maintenance, by series-parallel connection quantity restriction, effectively save design and die sinking expense, the mode of connection closely released by upper and lower connection piece between battery core is reduced contact resistance thus realizes minimizing power loss and improve the object of battery core consistence, leaves heat transmission space thus reach the object improving security between battery core.

Accompanying drawing explanation

Fig. 1 is soft bag power cell module one-piece construction schematic diagram.

Fig. 2 is bracket end cap of the present invention, bracket monomer and battery core assembling decomposing schematic representation.

Fig. 3 is bracket end cap structural representation of the present invention.

Fig. 4 is bracket monomer structure schematic diagram of the present invention.

Fig. 5 is core strueture schematic diagram of the present invention.

Fig. 6 is the fixed lobe structural representation on bracket end cap of the present invention and bracket monomer.

Fig. 7 is bracket connecting clamp buckle structure schematic diagram of the present invention.

Fig. 8 is that the present invention is connected by screw battery core together and upper and lower conductive connecting piece structure cut-away view.

Fig. 9 is the front projection figure of bracket side web plate of the present invention.

Figure 10 is the vertical view of Fig. 9 bracket side web plate of the present invention.

Figure 11 is I place's enlarged view of Figure 10 of the present invention.

Figure 12 is the front projection figure of bracket connecting clamp button of the present invention.

Embodiment

By accompanying drawing 1, 2, shown in 5: this battery modules comprises bracket end cap 1, battery core 2, bracket monomer 3, bracket side web plate 4, electric core conductive connection piece 5 and bracket connecting clamp buckle 6, the bracket end cap 1 at described multiple bracket monomer 3 and two ends forms a bracket main body after being assembled by bracket side web plate 4 and bracket connecting clamp button 6, described battery core 2 assembly is fixed between bracket end cap 1 and bracket monomer 3 and adjacent two bracket monomers 3, described bracket side web plate 4 card load connects the side of bracket end cap 1 after assembling and bracket monomer 3, described electric core conductive connection piece about 5 points two layers, by multiple screw 13 by the Electrode connection in each battery core 2 together (as shown in Figure 8).

By shown in accompanying drawing 3,4: described bracket end cap 1 and bracket monomer 3 are symmetrily processed with two heat radiation bar holes 7 on each frame of rectangle frame structure, corresponding two sides, it is processed with spacing pickup groove 8 between two heat radiation bar holes 7 of side, with fixed lobe point 9 in each spacing pickup groove 8, the upper side frame of described bracket end cap 1 and bracket monomer 3 with two fixed lobes 10, lower frame with 3 fixed lobes 10, with end plate 11 on described bracket end cap 1.

By shown in accompanying drawing 3,4,6: the side of each fixed lobe 10 described is with spacing preiection 10-1, and hole 10-3, with the limited impression 10-2 mated with spacing preiection 10-1 phase, is also withheld with card above described fixed lobe 10 in corresponding side.

By shown in accompanying drawing 1,2 and 7: the card that described bracket connecting clamp buckles each fixed lobe 10 that 6 are installed between bracket end cap 1 and bracket monomer 3 or adjacent two bracket monomers 3 is withheld in the 10-3 of hole.

By shown in accompanying drawing 1,2: with raised points hole clipping 12 on described bracket side web plate 4, bracket end cap 1 and the assembling of multiple bracket monomer 3 are fixed together by described bracket side web plate 4 by the fixed lobe point 9 in the spacing pickup groove 8 of raised points hole clipping 12 and bracket end cap 1, bracket monomer 3 side.

Described multiple lithium-ion electric core can not arbitrarily combine assembly by series-parallel connection number quantitative limitation and be fixed between bracket end cap 1 and bracket monomer 3 or adjacent two bracket monomers 3.

By shown in accompanying drawing 9,10,11: the V-type groove 14 being also processed with parallel uniform setting on described bracket side web plate 4; By shown in accompanying drawing 12: the interior angle that described bracket connecting clamp buckles 6 is processed to right angle; Above-mentioned two kinds of structures have employed the form by pressure easy fracture in design, fracture can occur thus relief pressure at the stress place of concentrating in time when battery meets accident and produces pressure, ensure that the security of battery modules in the situation of having an accident.

Claims (7)

1. a soft bag power cell module, it is characterized in that: this battery modules comprises bracket end cap (1), battery core (2), bracket monomer (3), bracket side web plate (4), electric core conductive connection piece (5) and bracket connecting clamp are buckled (6), the bracket end cap (1) at described multiple bracket monomer (3) and two ends forms a bracket main body after being assembled by bracket side web plate (4) and bracket connecting clamp button (6), described battery core (2) assembly is fixed between bracket end cap (1) and bracket monomer (3) and adjacent two bracket monomers (3), the card load of described bracket side web plate (4) connects the side of bracket end cap (1) after assembling and bracket monomer (3), upper and lower two layers of described electric core conductive connection piece (5) point, by multiple screw by the Electrode connection in each battery core (2) together.

2. the soft bag power cell module of one according to claim 1, it is characterized in that: described bracket end cap (1) and bracket monomer (3) are rectangle frame structures, each frame of corresponding two sides is symmetrily processed with two heat radiations bar hole (7), it is processed with spacing pickup groove (8) between two heat radiations bar hole (7) of side, with fixed lobe point (9) in each spacing pickup groove (8), the upper side frame of described bracket end cap (1) and bracket monomer (3) is with two fixed lobes (10), lower frame is with (3) individual fixed lobe (10), with end plate (11) on described bracket end cap (1).

3. the soft bag power cell module of one according to claim 2, it is characterized in that: the side of described each fixed lobe (10) is with spacing preiection (10-1), hole (10-3), with the limited impression (10-2) mated mutually with spacing preiection (10-1), is also withheld with card above described fixed lobe (10) in corresponding side.

4. the soft bag power cell module of one according to claim 1, it is characterised in that: the card of each fixed lobe (10) that described bracket connecting clamp button (6) is installed between bracket end cap (1) and bracket monomer (3) or two adjacent bracket monomers (3) is withheld in hole (10-3).

5. the soft bag power cell module of one according to claim 1, it is characterized in that: with raised points hole clipping (12) on described bracket side web plate (4), bracket end cap (1) and multiple bracket monomer (3) assembling are fixed together by described bracket side web plate (4) by fixed lobe point (9) in the spacing pickup groove (8) of raised points hole clipping (12) and bracket end cap (1), bracket monomer (3) side.

6. the soft bag power cell module of one according to claim 1, it is characterised in that: described multiple lithium-ion electric core can not arbitrarily combine assembly by series-parallel connection number quantitative limitation and be fixed between bracket end cap (1) and bracket monomer (3) or two adjacent bracket monomers (3).

7. the soft bag power cell module of one according to claim 1, it is characterised in that: the V-type groove (14) being also processed with parallel uniform setting on described bracket side web plate (4); The interior angle of described bracket connecting clamp button (6) is processed to right angle.