CN2932632Y

CN2932632Y - Connecting structure for conductance of conducting handle of secondary lithium battery

Info

Publication number: CN2932632Y
Application number: CNU2006201229201U
Authority: CN
Inventors: 伍必翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-02
Filing date: 2006-08-02
Publication date: 2007-08-08
Anticipated expiration: 2016-08-02

Abstract

The utility model relates to a conductive handle conducting connection structure of a secondary lithium battery, wherein an output terminal of the utility model is equipped with a conductive collecting area, the collecting area is just corresponding to positive and negative conductive handles on the two ends of an electrode roll. When carrying on the conducting connection operation of each conductive handle and the output terminal, the utility model can firstly covers a bunch opening of a bunch component on the back of the exterior of each conductive handle, and then carry on a gradually contracting operation of the bunch opening. When the bunch opening is reduced to the degree that the bridle, the collecting area and the positive conductive handle or the negative conductive handle are all contacted with each other tightly, which means finishing the conducting connection operation of the positive and the negative conductive handles and the output terminal. What is worth noting is that the electrical connection of the positive and the negative conductive handles and the derived terminal completely fastens and connects each conductive handle and the output terminal once through the bunch opening of the bunch component, wherein the process not only has no use for any welding operation but also has no need to make the conductive handles to carry on one by one. Thereby, through utilizing the utility model, the working procedure can not only be largely simplified but also the equipment cost can also be greatly reduced.

Description

The conductive handle conductive connecting structure of serondary lithium battery

Technical field

A kind of conductive handle conductive connecting structure of serondary lithium battery is meant the conduction handle that serondary lithium battery inside is drawn from utmost point volume and the link structure design of battery conductive terminal especially.

Background technology

The utmost point volume structure of known serondary lithium battery, see also the 1st, shown in 2 figure, this is No. the 5849431st, United States Patent (USP), wherein, this utmost point volume 10 is by an anodal layer 11, after one separator 12 and a negative electrode layer 13 are in regular turn mutually stacked, one circle circle is wound in center bar 14 outsides and constitutes, in this patent case especially just with this, negative electrode layer 11 12 one distolateral, form jagged plural conductive handle 111 131 structures by the mode of cutting in advance, in order to do can welding mutually with the external end edge of disc shape conducting terminal 15 by concentrating this respectively to conduct electricity handle 111 131, and then with the electric energy derivation of utmost point volume 10;

In addition, see also shown in Figure 3, this is another kind of known serondary lithium battery structure, it is in anodal layer 11a and the negative electrode layer 13a ora terminalis of utmost point volume 10a, earlier with welding manner connect set out plural conductive handle 111a 131a after, the person of connecing passes through solder technology once more, this end of respectively conducting electricity handle 111a 131a is welded mutually with the conducting terminal 15a outer rim of battery, use the electric energy of utmost point volume is derived battery;

Through above explanation as can be known, no matter be conduction handle one-body molded or that welding is constituted, the final electrically connect of this conduction handle and conducting terminal all is should conduct electricity handle by solder technology to weld with this conducting terminal one by one and finish electric connection at present; It should be noted that for high-capacity battery the quantity of inside battery conduction handle is quite a lot of usually, the conduction handle of using by a greater number reduces internal battery impedance, to meet the demand of the big electric current charge and discharge of high-capacity battery; But when conduction handle that quantity is huge and conducting terminal carry out weld job, not only weld job quite time-consuming, take a lot of work, and can increase the difficulty and the challenge of battery processing procedure;

Therefore, the research and development center of gravity of this case is to make this respectively to conduct electricity between handle and the conducting terminal, need not pass through weld job, promptly is able to directly do the excellent electrical property binding with conducting terminal.

Summary of the invention

The main purpose of the utility model, be to provide a kind of conductive handle conductive connecting structure of serondary lithium battery, electrically connect between the utility model positive and negative electrode conduction handle and this leading-out terminal, be once each conduction handle and leading-out terminal to be tightened binding comprehensively by the bundle mouth of constriction member, not only do not need weld job, and the handle that needn't conduct electricity one by one links, by the utility model not only flow chart can effectively be simplified and be organized and established and equipment cost is also all significantly reduced.

For achieving the above object, the technical scheme that the utility model adopted is: this structure mainly is provided with a center bar in a battery can, two end Joints with two leading-out terminals and this center bar, then be wound with utmost point volume in the center bar outside, and make with two constriction members that utmost point volume is distolateral to contact conducting with leading-out terminal, establish this battery components of fixed by nut and battery can with two groups more at last and constitute battery; It is characterized in that:

This utmost point volume is made of an anodal layer, a negative electrode layer and at least one separator, and this positive and negative electrode laminar surface is coated with positive electrode or negative material respectively, and this separator is provided with between the positive and negative electrode layer; Distolateral positive pole that is provided with a uncoated positive electrode in anodal floor connects the district, then distolateral in negative electrode layer with respect to another of anodal layer, the negative pole that also is provided with a uncoated negative material connects the district, the anodal layer of order, separator and negative electrode layer are in regular turn mutually stacked, and make positive pole connect the district and negative pole connects the district and exposes from two distolateral protruding out respectively, after the outside that each layer circle circle is wound in center bar constituted utmost point volume, two ends of this utmost point volume protruded out just respectively and expose that positive pole connects the district and negative pole connects the district;

This leading-out terminal is a conductive structure, combines with the connecting portion of this center bar with a connecting end of an end; The end in addition of this leading-out terminal then is shaped to an output; This leading-out terminal then forms a flange and a pooling zone especially between this connecting end and this output, this pooling zone is to be positioned at that positive pole with this utmost point volume connects the district or negative pole connects district opposite position person, and this flange then abuts against mutually with the end cap of battery can;

This constriction member has a band and one group and establishes frame, and this group is established and is provided with a blocking part in the frame, this band surface then is provided with a plurality of roller seating spaces, this band wore group establish the frame aftershaping have a branch of mouthful, and this roller seating space and the unidirectional clip of blocking part, and can restraint a mouthful convergent operation; This constriction member be place the positive pole of this utmost point volume to connect district or negative pole with the bundle muzzle to connect the district outside, in order to do should bundle by convergent mouthful, make the positive pole of this utmost point volume connect closely contact and the electrical combination mutually of pooling zone that district or negative pole connect district and this leading-out terminal.

The conductive handle conductive connecting structure of described serondary lithium battery, the connecting portion of this center bar is a slot, and the connecting end of this leading-out terminal is an inserted link, plugs with slot by inserted link to combine.

The conductive handle conductive connecting structure of described serondary lithium battery, the group of this constriction member is established frame and is equipped with a band and a knob, this knob surface forming has a screw thread, makes this screw thread mutually meshing with the roller seating space of this band, can transfer the bundle mouth of this band and tightens gradually by rotating this knob.

A kind of conductive handle conductive connecting structure of serondary lithium battery, mainly in a battery can, be provided with a center bar, two end Joints with two leading-out terminals and this center bar, then be wound with utmost point volume in the center bar outside, and make with two constriction members that utmost point volume is distolateral to contact conducting with leading-out terminal, establish this battery components of fixed by nut and battery can with two groups more at last and constitute battery; It is characterized in that:

This constriction member, have a band, a knob and one group and establish frame, this knob surface forming has a screw thread, this band surface then is provided with a plurality of roller seating spaces, this knob and this band are to wear group respectively to establish frame, make this band form a branch of mouthful and this screw thread and roller seating space are able to mutually meshingly, can transfer mouthful deflation gradually of this bundle by rotating this knob; This constriction member be place the positive pole of this utmost point volume to connect district or negative pole with the bundle muzzle to connect the district outside, in order to do should bundle by convergent mouthful, make the positive pole of this utmost point volume connect closely contact and the electrical combination mutually of pooling zone that district or negative pole connect district and this leading-out terminal.

The beneficial effects of the utility model are: not only flow chart can significantly be simplified and equipment cost is also significantly reduced by the utility model.

Description of drawings

Fig. 1 is that the known utmost point volume of No. the 5849431st, United States Patent (USP) is formed the structural upright schematic diagram.

Fig. 2 is the conduction handle and the conducting terminal Welding Structure schematic diagram of No. the 5849431st, United States Patent (USP).

Fig. 3 is that another known lithium battery is formed the structure cross-sectional schematic.

Fig. 4 is the schematic perspective view that the utility model utmost point volume and center bar are reeled and made up.

Fig. 5 is the wherein schematic perspective view of a constriction member and conduction handle Shu Heqian of the utility model.

Fig. 6 is that the utility model constriction member closes the schematic perspective view of finishing with conduction handle bundle.

Fig. 7 is the sectional perspective enlarged diagram that the utility model constriction member and utmost point clove hitch close.

Fig. 8 is that the utility model structural group is located at battery can internal state cross-sectional schematic.

Fig. 9 is wherein a constriction member and an integrated conduction handle Shu Heqian stereogram of the utility model.

Figure 10 is the utility model constriction member and integrated conduction handle Shu Hehou stereogram.

Figure 11 is the utility model constriction member and another integrated conduction handle Shu Hehou stereogram.

Figure 12 is the sheathed preceding schematic perspective view of another constriction member of the utility model and utmost point volume.

Figure 13 is that schematic perspective view is amplified in the part of the 12nd figure constriction member and utmost point volume after sheathed.

[primary clustering symbol description]

The 10 10a utmost points are rolled up the anodal layer of 11 11a

111 131 111a 131a conduction handle, 12 separators

13 13a negative electrode layers, 14 center bars

15 15a conducting terminals

20 battery cans, 21 ports

22 end caps 221 are worn groove

30 center bars, 31 connecting portions

The 40 40a utmost points are rolled up the anodal layer of 41 41a

411 positive electrodes, 42 negative electrode layers

421 negative materials, 43 separators

The anodal conduction of 44 44a 44b 44c handle 45 negative poles conduction handle

50 50a 50b 50c leading-out terminals, 51 connecting ends

52 outputs, 53 flanges

54 54a 54c pooling zones, 60 60a 60b 60c constriction members

61 61a bands, 611 611a roller seating spaces

62 knobs, 621 screw threads

63 63a group is established frame 631 blocking parts

64 64a bundle mouth is established nut for 70 groups

80 cut seam

Embodiment

About the utility model for reaching above-mentioned purpose, the technology that is adopted, means and effect, lift a preferable possible embodiments now and cooperate graphic detailed description as after; At first, please cooperate and consult Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the conductive handle conductive connecting structure of a kind of serondary lithium battery that the utility model embodiment is provided, mainly in a battery can, be provided with a center bar, these center bar two ends respectively are installed with a leading-out terminal respectively, this center bar outside then is wound with utmost point volume, two ends of this utmost point volume then extend positive pole conduction handle and the negative pole conduction handle of at least one respectively, respectively will be just by two constriction members, negative pole conduction handle closes with the leading-out terminal outside bundle that contacts tightly, establishes this internal structure of fixed by nut and battery can with two groups more at last and constitutes battery; Wherein:

These battery can 20, two ends respectively offer a port 21, and inside can be established for the battery component sets, and can establish as the closing cap of this each port 21 by two end caps 22, then offer one on this end cap 22 and wear groove 221 and pass for the battery members;

This center bar 30 is an insulation system, is mounted on battery can 20 inside, and these center bar 30 2 ends respectively are shaped to a junction 31 respectively, and this connecting portion 31 is an inserting slot construction;

This utmost point volume 40, by an anodal layer 41, one negative electrode layer 42 and at least one separator 43 constitute, this just, negative electrode layer 41 42 surfaces are coated with positive electrode 411 or negative material 421 respectively, this separator 43 is provided with and just is positioned at, between the negative electrode layer 41 42, distolateral at least one anodal conduction handle 44 that is welded with in this positive pole layer 41, distolateral in another of negative electrode layer 42, then be welded with at least one negative pole conduction handle 45, the anodal layer 41 of order, after separator 43 and negative electrode layer 42 are in regular turn mutually stacked, each layer circle again encloses the outside formation battery pole coil 40 that is wound in center bar 30, and just, 44 45 of handles of negative pole conduction lay respectively at the two distolateral of utmost point volume 40;

This leading-out terminal 50 is a conductive structure, and an end is shaped to a connecting end 51, and this connecting end 51 can be a hinge pedestal structure, in order to do combining with the connecting portion 31 of this center bar 30; The end in addition of this leading-out terminal 50 then is shaped to an output 52, and this output 52 may be molded to a screw-rod structure; This leading-out terminal 50 is between this connecting end 51 and this output 52, form a flange 53 and a pooling zone 54, this pooling zone 54 is the positive and negative electrode conduction handle 44 45 opposite position places that are positioned at this utmost point volume 40, and this flange 53 then abuts against mutually with the end cap 22 of battery can 20;

This constriction member 60, have a band 61, a knob 62 and one group and establish frame 63, these knob 62 surface formings have a screw thread 621, these band 61 surfaces then are provided with a plurality of roller seating spaces 611, this knob 62 and this band 61 are to wear group respectively to establish frame 63, make this band 61 form a branch of mouthfuls 64 and this screw thread 621 and roller seating space 611 be able to mutually meshingly, can transfer this bundle mouthfuls 64 deflation or expand gradually by rotating this knob 62; This constriction member 60 is positive and negative electrodes conduction handle 45 outsides that are placed on this utmost point volume 40 with bundle mouth 64, in order to do the deflation operation by this bundle mouth 64, this positive and negative electrode conduction handle 44 45 is contacted and electrical combination closely with the pooling zone 54 of this leading-out terminal 50;

This group is established nut 70, when utmost point volume 40 and center bar 30 and leading-out terminal 50 are finished group and are established by constriction member 60 after, wore groove 221 with what the output 52 of this leading-out terminal 50 wore this end cap 22, and abut against mutually with these end cap 22 inner faces by this flange 53, then being able to this group establishes nut 70 and is locked on this output 52, and establish by the lock that this group is established nut 70, this each battery components is firmly combined with battery can 20.

The above, the conduction handle connecting structure composition and the member assembly that are the utility model serondary lithium battery concern the position, by the utility model technology, this respectively conduct electricity handle must by the constriction member directly and leading-out terminal make electrically connect, do not need fully can reach by weld job, not only simplifying the production process of battery and this respectively conducts electricity between handle and the leading-out terminal to be to contact the coupler by large tracts of land, can effectively to reduce the impedance of battery, and meet the user demand of the big electric current charge and discharge of battery; Now use mode of operation to be described in detail as follows it:

Please consult Fig. 4 again, Fig. 5, Fig. 6, shown in Figure 7, leading-out terminal 50 of the present utility model is positioned at the middle section, form the pooling zone 54 of a conduction especially, and this pooling zone 54 just and the utmost point just rolling up 40 2 ends, negative pole conduction handle 44 45 is positioned at the corresponding position, just carry out battery, when the conduction of negative pole conduction handle 44 45 and leading-out terminal 50 links operation, can be earlier with the bundle mouth 64 of constriction member 60 be placed on this each just, the outside of negative conduction handle 44 45, then, can make its screw thread 621 meshing by turning knob 62 with the roller seating space 611 of band 61, and then drive band 61 is established frame 63 by group, and bundle mouthful 64 operations of tightening gradually, when being contracted to, bundle mouth 64 makes band 61, when pooling zone 54 and anodal conduction handle 44 or negative pole conduction handle 45 all closely contact mutually, just promptly finish, negative pole conduction handle 44 45 combines operation with the conduction of leading-out terminal 50, need not carry out any weld job in the process;

It should be noted that, electrically connect in the utility model between this positive and negative electrode conduction handle 44 45 and this leading-out terminal 50, be once each negative or positive electrode conduction handle 44 45 to be tightened binding with leading-out terminal 50 comprehensively by the bundle mouth 64 of constriction member 60, in the process, complete without any need for weld job, and needn't conduct electricity handle one by one and carry out; For the binding operation of huge conduction handle of high-capacity battery quantity and leading-out terminal, by the utility model technology not only flow chart effectively simplified and organized and established and equipment cost is also all significantly reduced; In addition, because between the pooling zone 54 of this positive and negative electrode conduction handle 44 45 and leading-out terminal 50, the electrically connect that can carry out the large tracts of land contact, this helps to reduce the internal impedance value of battery;

Moreover, each negative or positive electrode conduction handle of among the embodiment this is to be welded in utmost point volume institute constitutor with an end as described above, see also Fig. 9, shown in Figure 10, this is directly in anodal layer 41a or the negative electrode layer ora terminalis of utmost point volume 40a, reserve the zone of a uncoated positive electrode or negative material earlier, the type that directly this reserved area one type is set as again has anodal conduction handle 44a or negative pole conduction handle structure person, this each integrated anodal conduction handle 44a or negative pole conduction handle are behind constriction, can make this each anodal conduction handle 44a or negative pole conduction handle and the pooling zone 54a of leading-out terminal 50a make the electrically connect that closely contacts by the constriction member 60a of this case equally; In addition, this type is set as the negative or positive electrode conduction handle of type, this respectively conducts electricity the sanction that can be point blank between the handle establishes kenel, for example see also the 11st figure those shown, be after 80s for only cutting seam between each anodal conduction handle 44b or the negative pole conduction handle, be shaped to minimum distance adjacent conductive ansa attitude, also same applicable constriction member 60b of the present utility model carries out this each anodal conduction handle 44b or negative pole conduction handle and contacts binding with the constriction of leading-out terminal 50b pooling zone;

The person of being worth mentioning is, the group of this constriction member 60c is established the structure that frame and knob can be combined as a whole, see also Figure 12, shown in Figure 13, be directly one-body moldedly in group is established frame 63a to have a blocking part 631 with unidirectional double wedge to use the replacement knob, make band 61a wore the group establish frame 63a after, the roller seating space 611a of this band 61a must be the unidirectional clip of the double wedge of blocking part 631, and can restraint a mouthful 64a convergent operation, in order to do be somebody's turn to do a bundle mouthful 64a by convergent, this positive pole conduction handle 44c or negative pole conduction handle are closely contacted and electrically combination mutually with leading-out terminal 60c pooling zone 54c;

Through above explanation as can be known, the utility model is by the bundle mouth constriction design of constriction member, can conduct electricity handle and leading-out terminal to this and directly tighten the Shu Hezuo industry, do not need welding sequence in the process fully, and once finish and respectively conduct electricity the electrically connect of handle and leading-out terminal, not only operation is significantly simplified and cost significantly reduces.

Claims

1. the conductive handle conductive connecting structure of a serondary lithium battery, mainly in a battery can, be provided with a center bar, two end Joints with two leading-out terminals and this center bar, then be wound with utmost point volume in the center bar outside, and make with two constriction members that utmost point volume is distolateral to contact conducting with leading-out terminal, establish this battery components of fixed by nut and battery can with two groups more at last and constitute battery; It is characterized in that:

2. according to the conductive handle conductive connecting structure of the described serondary lithium battery of claim 1, it is characterized in that: the connecting portion of this center bar is a slot, and the connecting end of this leading-out terminal is an inserted link, plugs with slot by inserted link to combine.

3. according to the conductive handle conductive connecting structure of the described serondary lithium battery of claim 1, it is characterized in that: the group of this constriction member is established frame and is equipped with a band and a knob, this knob surface forming has a screw thread, make this screw thread mutually meshing, can transfer the bundle mouth of this band and tighten gradually by rotating this knob with the roller seating space of this band.

4. the conductive handle conductive connecting structure of a serondary lithium battery, mainly in a battery can, be provided with a center bar, two end Joints with two leading-out terminals and this center bar, then be wound with utmost point volume in the center bar outside, and make with two constriction members that utmost point volume is distolateral to contact conducting with leading-out terminal, establish this battery components of fixed by nut and battery can with two groups more at last and constitute battery; It is characterized in that: