CN200986939Y

CN200986939Y - Combination device for power battery

Info

Publication number: CN200986939Y
Application number: CNU2006200654001U
Authority: CN
Inventors: 徐耀峰; 赵丰刚
Original assignee: Dongguan Amperex Electronics Technology Ltd
Current assignee: Dongguan Amperex Electronics Technology Ltd
Priority date: 2006-10-09
Filing date: 2006-10-09
Publication date: 2007-12-05
Anticipated expiration: 2016-10-09

Abstract

The utility model relates to battery technique field, in particular to a power battery aggregate unit. The aggregate unit makes a plurality of electric cores combine into a electric core group. The aggregate unit comprises two conductive copper plates connecting the electric core pole lug, an insulated pin board for fixing conductive copper plate and a metal casing for placing the electric core, wherein the insulated pin board is connected with the metal casing. After adopting the structure, the aggregate unit makes a plurality of electric cores combine into an electric cores group to obtain the power battery meeting requirements of the specification. Meanwhile, the utility model is also capable of making a certain number of electric cores combine into various specifications of power batteries. In addition, the structure of the utility model solves the problem of radiating while the battery is working and the problem that the thickness is increased during the process of using of the electric cores.

Description

The composite set of electrokinetic cell

Technical field:

The utility model relates to the battery technology field, refers in particular to a kind of composite set of electrokinetic cell.

Background technology:

Because the lighium polymer ion battery has high energy density, the specific energy height has extended cycle life, memory-less effect, and it has power type application prospect widely now.For example, be applied on the products such as electric motor car, hybrid vehicle, electric bicycle.

At present, the lighium polymer ion battery mostly adopts the lug of thinner thickness as both positive and negative polarity, its problem of running in use is: be voltage and the energy requirement that satisfies different needs, the many compound modes also of many strings have been adopted in the inside lithium ion cell combination, the mode that need to adopt welding is carried out series and parallel with the lug of battery, so just can finish being connected between electric core and the electric core.So not only increase manufacture difficulty, length also will make the degradation of electric core weld time while.

The utility model content:

Technical problem to be solved in the utility model just be to solve present lithium ion battery at many strings many and the time, the problem that the connection in series-parallel of electricity core is difficult, a kind of composite set of electrokinetic cell is provided, the electrical core of power battery group is fixed and be assembled into to electric core, form the combination power battery of satisfying the demand by the connection in series-parallel of electric core group again.

In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: this composite set is combined into electric core group with a plurality of electric cores, this composite set comprises: two conductive copper plates that connect cell polar ear respectively, be used for fixing the insulation keyset of conductive copper plate and the metal shell that is used for ccontaining electric core, the keyset that wherein insulate is fixedly connected on the metal shell.

After adopting said structure, utilize composite set that a plurality of electric core composite joints are formed electric core group, to reach the electrokinetic cell of required specification.Composite set also can carry out excellent protection to electric core electric core being combined into electric core group simultaneously.

Furthermore, form on the described conductive copper plate and be used for the hole slot that cell polar ear passes, offer through hole between the two adjacent hole slots; The position of corresponding above-mentioned hole slot, through hole forms guide groove and the screwed hole that power supply core lug wears on the insulation keyset, to be conductive copper plate pass through hole on it by screw fixedlys connected with the screwed hole on the insulation keyset and is installed on the insulation keyset, and the cell polar ear that passes guide groove and hole slot successively by screw on conductive copper plate.It utilizes cell polar ear is soft, crooked easily, thereby with screw lug is pressed on the conductive copper plate.

Furthermore, the end of described conductive copper plate forms a protuberance, and offers connecting hole on the protuberance.The electric core group that this structure can constitute a plurality of composite sets is carried out the series and parallel knot by protuberance again, and like this, the user can select the number of electric core group to carry out series and parallel by this protuberance as required.

Be separated with certain thickness foam-rubber cushion between between described electric core and the electric core.Foam-rubber cushion is positioned near electric core bottom, make between the electric core and produce certain intervals, in order to avoid electric core in use thickness can increase and not have enough spaces, eliminate safe hidden trouble.

Metal shell is shaped as frame, is placed in electric core group periphery, by bottom and insulation loam cake electric core group is fixed again; Metal shell generally adopts aluminium matter, and not only cost is lower for it, and thermal conductivity is good, and the heating when electric core group is worked can be distributed well by aluminum shell; Bottom and insulation loam cake all adopt plastic material, and by screw at the metal shell two ends, form a Global Macros, play buffering, shockproof effect.

After the utility model adopts said structure, both solved the connectivity problem between the electric core in the electrokinetic cell, also solved the connectivity problem between electric core group and the electric core group, thus can determine as required electric core group number be combined into the electrokinetic cell of various different sizes; Simultaneously, the utility model structure has also solved the heat dissipation problem of battery when work and the space problem of electric core thickness increase in use.

Description of drawings:

Fig. 1 is the three-dimensional exploded view of the utility model one embodiment;

Fig. 2 is the stereogram of the utility model embodiment;

Fig. 3 is the schematic diagram after the electric core group combination of the many groups of the utility model.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further specified.

The utility model is that a plurality of lithium-ion electric core combinations back is formed electric core group.In use carry out the electrokinetic cell that series and parallel forms different size by the electric core group of varying number.

See Fig. 1,2, the single electric core 1 that adopts in the present embodiment into strips, end edge is extended the both positive and

negative polarity lug

11,12 of electric core.Composite set 10 comprises: conductive copper plate 2, insulation keyset 3, metal shell 4, insulation loam cake 5 and bottom 6.

The length of electricity core 1 body is suitable with the length of metal shell 4, and metal shell 4 is the body that seals both ends open around, adopts aluminium to make, and can hold the electric core 1 of multi-disc.1 stack of electricity core is placed in the metal shell 4.Si Jiaochu at two end faces of metal shell 4 offers screw 41, is respectively applied for insulation loam cake 5 and bottom 6 are installed.And having pair of inner wall evenly to offer several cutting grooves 42 in the inwall of metal shell 4, this cutting groove 42 can be used for being provided with dividing plate (figure does not show), so that the electric core 1 that will superpose is separated.Certainly, between electric core 1, also can adopt other modes to isolate, for example between electric core 1, place foam-rubber cushion (figure does not show), for volumetric expansion in the electric core use leaves sufficient space.Simultaneously, can play the effect that increases buffering, the electric core 1 of protection like this.

Insulation keyset 3 integral body are square, its cross sectional shape with metal shell 4 is corresponding, offer two row guide grooves 31 on it, power the respectively lug of core 1 of two row guide grooves 31 passes, distance between the two row guide grooves 31 is equivalent to the distance between the lug of electric core 1, and the number of every row guide groove 31 is decided on the number of the electric core that electric core group needs.Between every row guide groove, offer screwed hole 32, be used for fixing conductive copper plate 2.Four jiaos of insulation keyset 3 offer location hole 33, corresponding with the screw 41 of metal shell 4.

Conductive copper plate 2 whole one-tenth " L " types, form a row hole slot 21 on the long panel, the number of hole slot 21 and relative position are corresponding with guide groove 31 on the insulation keyset 3, and sizableness, like this, the

lug

11,12 of electric core 1 can pass the guide groove 31 of insulation keyset 3 and the hole slot 21 of conductive copper plate 2 successively.And between adjacent hole slot 21, also offer and the corresponding through hole 22 of keyset 3 upper screwed holes 32 that insulate, be that conductive copper plate 2 can not be fixed on the insulation keyset 3 by screw (looking out among the figure), and fixing the time, soft lug bending with electric core 1, utilize screw to push down and be fixed on the conductive copper plate 2, the homonymy lug of a plurality of electric cores 1 is connected.In like manner, another utmost point lug of electric core 1 then is connected and fixed by another conductive copper plate, promptly by an insulation keyset 3 and two conductive copper plates 2 one group of electricity core 1 is connect and forms an electric core group.

" L " type conductive copper plate 2 one ends form a protuberance 23, and offer connecting hole 230 on it, the electrode that can make single electric core group uses, simultaneously also can by this protuberance 23 should electricity core group and other electric core groups be combined into the power battery pack 7 of required specification, as shown in Figure 3.

Insulation loam cake 5 offers the bar hole that the protuberance 23 for conductive copper plate 2 passes and offers installing hole 52 for 51, four jiaos, is used for fixing in metal shell 4 upper ends.

When the utility model is installed, in advance bottom 6 is fixed on the bottom of metal shell 4, with two conductive copper plates 2 respectively with two row guide grooves, 31 contrapositions of insulation keyset 3, and screw passed the through hole 22 of conductive copper plate 2 and screws in the screwed hole 32 of insulation keyset 3.Then with the lug of electric core 1 respectively successively from the guide groove 31 of insulation keyset 3 and the hole slot 21 of conductive copper plate 2, again with the lug bending that passes, rotary screw and pushing down gets final product after lug is tightened; Between the bottom of electric core 1, be encased inside certain thickness foam-rubber cushion, whole then electric core group is peripheral tentatively fixing with suitable adhesive plaster, the electric core that fixes is assembled into metal shell 4, and the location hole 33 of insulation keyset 3 and screw 41 contrapositions of metal shell 4, put loam cake 5 at last again, pass the installing hole 52 of loam cake 5, the location hole 33 of insulation keyset 3 successively with screw, the screw 41 of screw-in metal shell 4 is also tightened, like this, the combination of electric core group is finished.

As shown in Figure 3,, the protuberance 23 of electric core group by conductive copper plate on it 2 coupled together, can constitute needed combination power battery group 7 according to the needs of different size battery.

Certainly, the above only is example of the utility model, is not to limit the utility model practical range, so, all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.

Claims

1. the composite set of an electrokinetic cell, this composite set (10) is combined into electric core group with a plurality of electric cores (1), it is characterized in that: this composite set (10) comprising: two connect the conductive copper plate (2) of electric core (1) lug (11,12), the metal shell (4) that is used for fixing the insulation keyset (3) of conductive copper plate (2) and is used for ccontaining electric core (1) respectively, and the keyset (3) that wherein insulate is fixedly connected on the metal shell (4).

2. the composite set of electrokinetic cell according to claim 1 is characterized in that: form on the described conductive copper plate (2) and be used for the hole slot (21) that cell polar ear (11,12) passes, offer through hole (22) between adjacent two hole slots (21); The position that insulation keyset (3) is gone up corresponding above-mentioned hole slot (21), through hole (22) forms guide groove (31) and the screwed hole (32) that power supply core lug (11,12) wears, to be conductive copper plate (2) pass through hole (22) on it by screw fixedlys connected with the screwed hole (32) on the insulation keyset (3) and is installed on the insulation keyset (3), and the cell polar ear (11,12) that passes guide groove (31) and hole slot (21) successively by screw on conductive copper plate (2).

3. the composite set of electrokinetic cell according to claim 2, it is characterized in that: the end of described conductive copper plate (2) forms a protuberance (23), and offers connecting hole (230) on the protuberance (23).

4. the composite set of electrokinetic cell according to claim 3, it is characterized in that: described metal shell (4) becomes tubulose, its two-port is respectively arranged with insulation loam cake (5) and bottom (6), offers on the loam cake (5) that wherein insulate to be used for bar hole (51) and the installing hole (52) that conductive copper plate (2) protuberance (21) passes; Offer the screw (41) corresponding on metal shell (4) end face with the installing hole (52) of loam cake (5).

5. the composite set of electrokinetic cell according to claim 4 is characterized in that: form several cutting grooves (42) on the inwall of described metal shell (4).

6. the composite set of electrokinetic cell according to claim 4 is characterized in that: described electric core (1) stack is positioned in the metal shell (4), and the bottom is separated with foam-rubber cushion between the electric core (1).

7. the composite set of electrokinetic cell according to claim 5, it is characterized in that: described electric core (1) superposes successively and is positioned in the metal shell (4), and electric core is provided with dividing plate between (1), and these dividing plate two ends are arranged in respectively in the cutting groove (42) of moulding on metal shell (4) inwall.