CN206116506U - Group battery and utmost point flow thereof - Google Patents
Group battery and utmost point flow thereof Download PDFInfo
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- CN206116506U CN206116506U CN201621131217.7U CN201621131217U CN206116506U CN 206116506 U CN206116506 U CN 206116506U CN 201621131217 U CN201621131217 U CN 201621131217U CN 206116506 U CN206116506 U CN 206116506U
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- pole
- spot welding
- connecting portion
- electrode
- flow body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a group battery and utmost point flow thereof, the utmost point flow of group battery include at least two with the group battery in the electrically conductive electrode connection part who is connected of the electrode with one side of corresponding monomer electricity core, each electrode connection part is through electrically conductive connection of utmost point flow body, at least one electrode connection part includes that should weld spot welding connection piece that the electricity links and interval with the electrode pair of corresponding monomer electricity core encloses and locate the conducting ring piece in the spot welding connection piece outside, the conducting ring piece with the electrically conductive connection of utmost point flow body, the spot welding connection piece passes through the electrically conductive arm electricity of arc even with the conducting ring piece, has the fuse part of overflowing on the electrically conductive arm of arc. The spot welding connection piece passes through the electrically conductive arm electricity of arc even with the conducting ring piece to, having the fuse part of overflowing on the electrically conductive arm of arc, during the use, should welding the electricity even with the electrode pair of spot welding connection piece and corresponding monomer electricity core, when monomer electricity core appeared overflowing the condition, it can automatic fusing to overflow fuse part, thereby protects circuit breaker in order to form.
Description
Technical field
This utility model is related to a kind of set of cells and its pole flow.
Background technology
The research of battery group technology will be accelerated to promote electric automobile, microgrid energy storage, stand-by power supply, portable power source, isolated island storage
The development of the industries such as energy.Scheduling to electrical network plays the effect of key.For example：Peak-frequency regulation, reactive-load compensation, peak load shifting etc..
Battery group technology is the core technology of battery case, is also the key technology of following promotion battery energy storage.
Battery combination as disclosed in the Chinese utility model patent that Authorization Notice No. is CN204391184U, by by leading
The battery module composition of stream copper bar connection, each battery module includes multiple cylindrical lithium batteries being arranged in juxtaposition, cylinder lithium electricity
Pond is arranged in the location hole of carrier parts, the positive pole homonymy of each cylindrical lithium battery, and Correspondent cy linder lithium battery is being just on support
Pole side and negative side are respectively equipped with molding nickel sheet, positive pole, the negative pole of spot welding face correspondence and cylindrical lithium battery in two molding nickel sheet
Correspondence spot welding connection, two molding nickel sheet are corresponding to be conductively connected with corresponding conducting copper bus.This battery combination can meet difference
High performance requirements of the industry to battery.
In use, such as in discharge process, easily there is high current such as short circuit or is equipped with high-power use in battery combination
It is to protect battery and electrical equipment often more than the discharge current bearing value of battery combination during electrical equipment, more can external excessively stream guarantor
Protection circuit, when the electric current in whole circuit is excessive, can actively turn off the primary path of set of cells, in case it is even whole to damage battery
Equipment.But, in actual use, because each battery module is in parallel by multiple single battery cores or connection in series-parallel is realized,
If Authorization Notice No. is that CN204391184U and Authorization Notice No. are the paralleling model disclosed in the patent of CN202534726U, award
Power notification number is the connection in series-parallel pattern disclosed in the patent of CN204760452U, and battery core is in parallel connection, and battery core in parallel is generally common
Piece is connected in parallel with one, so, when there is internal short-circuit in single battery core or single battery core component there is excessively stream, whole battery
Group still occurs the heavy-current discharge problem that excessively stream causes, or even can cause on fire, and these problems cannot then rely on external
Current foldback circuit solve.
Utility model content
The purpose of this utility model is to provide a kind of pole flow of the set of cells with overcurrent protection function, existing to solve
Having the set of cells in technology generally only to arrange that external current foldback circuit causes cannot be effective when excessively stream occurs in single battery core
The problem of cut-out circuit；Meanwhile, this utility model also provides a kind of set of cells using above-mentioned pole flow.
For achieving the above object, the technical scheme of the pole flow of set of cells provided by the utility model is：A kind of battery
The pole flow of group, including the electrode connection of the electrodes conduct connection of the same side of at least two single battery cores corresponding to set of cells
Portion, each electrode connecting portion is conductively connected by pole flow body, and at least one electrode connecting portion includes and corresponding single battery core
Electrode pair should weld the spot welding connection sheet that is electrically connected and conductive ring plate on the outside of the spot welding connection sheet, conductive ring plate are enclosed in interval
It is conductively connected with the pole flow body, spot welding connection sheet is electrically connected with conductive ring plate by arc conductive arm, on arc conductive arm
With excessively stream fuse part.
The arc conductive arm is evenly equipped with two along spot welding connecting portion is circumferentially-spaced.
The pole flow body is provided with for the location structure by pole flow correspondence positioning assembling in the set of cells,
Pole flow body by bend elastic piece structure be conductively connected with the electrode connecting portion, pole flow body, bending elastic piece structure with
Electrode connecting portion forms Z-shaped.
The electrode connecting portion includes two positive pole connecting portions and two negative pole connecting portions, two positive pole connecting portions and two negative poles
Connecting portion is corresponding to be arranged in pole flow body both sides, and the positive pole connecting portion has described spot welding connection sheet, conductive ring plate
And arc conductive arm, the negative pole connecting portion includes corresponding with the negative pole of corresponding single battery core welding the spot welding conducting strip that is electrically connected.
The location structure is long including the center positioning hole being arranged on pole flow body and the positioning connected with location hole
Hole.
The technical scheme of the set of cells using above-mentioned pole flow provided by the utility model is：A kind of set of cells, including
At least one battery module, the battery module has the single battery cores of at least two parallel arrangements and by the same of each single battery core
The pole flow that the electrode pair of side should be conductively connected, the pole flow includes at least two electrode connecting portions and leads each electrode connecting portion
The pole flow body of electrical connection, at least one electrode connecting portion includes that the point being electrically connected should be welded with the electrode pair of corresponding single battery core
The conductive ring plate on the outside of the spot welding connection sheet is enclosed at weldering connection sheet and interval, and conductive ring plate is conductive with the pole flow body
Connection, spot welding connection sheet is electrically connected with conductive ring plate by arc conductive arm, has excessively stream fuse part on arc conductive arm.
The arc conductive arm is evenly equipped with two along spot welding connecting portion is circumferentially-spaced.
The pole flow body is provided with for the location structure by pole flow correspondence positioning assembling in the set of cells,
Pole flow body by bend elastic piece structure be conductively connected with the electrode connecting portion, pole flow body, bending elastic piece structure with
Electrode connecting portion forms Z-shaped.
The electrode connecting portion includes two positive pole connecting portions and two negative pole connecting portions, two positive pole connecting portions and two negative poles
Connecting portion is corresponding to be arranged in pole flow body both sides, and the positive pole connecting portion has described spot welding connection sheet, conductive ring plate
And arc conductive arm, the negative pole connecting portion includes corresponding with the negative pole of corresponding single battery core welding the spot welding conducting strip that is electrically connected.
The location structure is long including the center positioning hole being arranged on pole flow body and the positioning connected with location hole
Hole, the set of cells includes the location-plate of positioning assembling corresponding with the single battery core, and location-plate is provided with fixed with the center
The centralized positioning post of position hole positioning inserting and the positioning convex strip of inserting corresponding with the positioning elongated hole.
The beneficial effects of the utility model are：In the pole flow of set of cells provided by the utility model, at least one is electric
Pole connecting portion includes that the conductive ring plate on the outside of spot welding connection sheet, spot welding connection sheet and conducting ring are enclosed in spot welding connection sheet and interval
Piece is electrically connected by arc conductive arm, also, has excessively stream fuse part on arc conductive arm, when using, by spot welding connection sheet and phase
Answering the electrode pair of single battery core should weld and be electrically connected, and when overcurrent condition occurs in single battery core, excessively stream fuse part can fuse automatically, from
And by failure of current forming protection.Also, spot welding connection sheet is arranged in conductive ring plate so that whole connecting portion more collects
In, reduce area, and, it is ensured that the size of spot welding connection sheet, the area of spot welding link is effectively ensured.Also, this practicality is new
In the pole flow that type is provided, coupling and conduction for spot welding connection sheet and conductive ring plate is realized using arc conductive arm, arc is led
Electric arm is peripherally and outwardly radiated along spot welding connection sheet, can so play preferable cushioning effect, the stress that less fuse part is born,
Excessively stream fuse part is avoided unexpected situation about cut-offfing occur.
Further, arc conductive arm is circumferentially spaced is evenly equipped with two, can balance internal electric field.
Further, flow body in pole is conductively connected by bending elastic piece structure with electrode connecting portion, and, pole flow sheet
Body, bending elastic piece structure and electrode connecting portion form Z-shaped, by the positioning assembling of pole flow body in set of cells, in single battery core
During vibration, to rushing that solder joint is caused when the elastic deformation formed using bending elastic piece structure effectively overcomes single battery core to vibrate
Hit impact.
Description of the drawings
Fig. 1 is a kind of structural representation of embodiment of set of cells provided by the utility model；
Fig. 2 is the structural representation of pole flow in Fig. 1；
Fig. 3 is the top view of pole flow shown in Fig. 2.
Specific embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of set of cells provided by the utility model, as shown in Figure 1 to Figure 3, the battery in the present embodiment
Group includes the single battery core 2 of multiple parallel arrangements, and these single battery cores 2 are fixed by upper locating rack 3 and lower locating rack 1, this enforcement
Single battery core 2 is transversely disposed with 7 row in example, and each column single battery core 2 includes 10 single battery cores, the single battery core of adjacent column
The same side electrode polarity it is different, so, in the present embodiment, using the pole flow for being arranged in adjacent monomer battery core the same side
Realize the connection in series-parallel arrangement of corresponding single battery core.
Specifically, four adjacent single battery cores 2 are conductively connected by a correspondence of pole flow 4, also, the pole flow
4 are connected and in addition the negative conductive of another single battery core connects with the positive conductive of two single battery cores in four single battery cores
Connect, so, the correspondence of pole flow 4 includes two positive pole connecting portions 40 and two negative pole connecting portions 42, and pole flow is also flowed including pole
Piece body 41, two positive pole connecting portions 40 are conductively connected with two negative pole connecting portions 42 by pole flow body 41, are realized in parallel
Two positive poles connect with two negative poles of parallel connection.
In the present embodiment, adjacent four single battery cores and a pole flow are correspondingly formed a battery module, the present embodiment
In set of cells include multiple battery modules.
In fact, the structure of two positive pole connecting portions 40 of the pole flow in the present embodiment is identical, two negative pole connecting portions
42 structure is identical, and two positive pole connecting portions 40 and two negative pole connecting portions 42 are corresponding is arranged in the both sides of pole flow body 41.
Positive pole connecting portion 40 and negative pole connecting portion 42 in pole flow 4 is respectively by bending elastic piece structure 45 and pole flow sheet
Body 41 is conductively connected, and, pole flow body 41, bending elastic piece structure 45 form Z-shaped with corresponding electrode connecting portion.
In the present embodiment, positive pole connecting portion 40 includes the spot welding connection welded and be electrically connected corresponding with the positive pole of corresponding single battery core
The conductive ring plate 47 located at the outside of spot welding connection sheet 49 is enclosed at piece 49 and interval, and spot welding connection sheet 49 passes through arc with conductive ring plate 47
Conductive arm 48 is electrically connected, and arc conductive arm 48 is evenly equipped with two along spot welding connecting portion is circumferentially-spaced, on each arc conductive arm 48 point
Ju You not excessively stream fuse part 46.
Negative pole connecting portion 42 includes the spot welding conducting strip for welding and being electrically connected corresponding with the negative pole of corresponding single battery core.
It should be noted that for convenience of welding, in the spot welding connection sheet 49 and negative pole connecting portion 42 on positive pole connecting portion 40
Spot welding conducting strip be circular configuration, and be respectively equipped with I shape engraved structure.
It is provided with the pole flow body 41 of pole flow 4 for flow correspondence positioning in pole to be assembled into determining in the set of cells
Location structure on the plate of position, the location structure specifically includes the center positioning hole 43 that is arranged on pole flow body and fixed with center
Two positioning elongated holes 44 being arranged symmetrically of position hole 43 connection, accordingly, are then provided with fixed with center on the location-plate of set of cells
The centralized positioning post of position hole positioning inserting and the positioning convex strip with the positioning corresponding inserting of elongated hole, using centralized positioning post and determine
Position raised line realizes the positioning to pole flow.
In the present embodiment, using the arc conductive arm 48 on the positive pole connecting portion 40 of pole flow 4 realize conductive ring plate 47 with
Being conductively connected for spot welding connection sheet 49, by arranging excessively stream fuse part 46 on arc conductive arm 48 overcurrent protection is realized.Root
According to the excessively stream coefficient of setting, the overflow section area of fuse part is chosen, if the electric current passed through in single battery core exceedes positive normal open
Stream size, excessively stream fuse part can fuse at once to isolate corresponding single battery core, and then ensure whole set of cells, play effectively
Overcurrent protection.
In the present embodiment, using bending elastic piece structure 45 conduction between corresponding connecting portion and pole flow body 41 is realized
Connection, both ensure that bonding area, can alleviate vibration, the impact of impact butt welding contact using elastic piece structure again.
Only it is that positive pole connecting portion includes spot welding connection sheet, conductive ring plate and the arc with excessively stream fuse part in the present embodiment
Shape conductive arm, negative pole connecting portion only has spot welding conducting strip, and in design, spot welding conducting strip is identical with the structure of spot welding connection sheet,
Conductive ring plate can also be arranged in the spot welding conducting strip periphery of negative pole connecting portion, and it is conductive by the arc with excessively stream fuse part
The conductive ring plate of arm realization is conductively connected with spot welding conducting strip, and then realizes overcurrent protection.
In the present embodiment, flow correspondence in pole realizes the connection in series-parallel connection of four single battery cores, in other embodiments, pole stream
Piece is also capable of achieving the serial or parallel connection of two single battery cores, it is also possible to realize the connection in series-parallel arrangement of three single battery cores.Certainly, such as
Fruit, equally can be with profit when the negative or positive electrode of the single battery core in a battery module even a set of cells is located at the same side
Being arranged in parallel for all single battery cores is realized with this pole flow.
This utility model also provides a kind of embodiment of the pole flow of set of cells, the structure of the pole flow in the embodiment with
The structure of the pole flow of above-mentioned set of cells is identical, and here is no longer excessively repeated.
Claims (10)
1. the pole flow of a kind of set of cells, including the electrodes conduct of the same side of at least two single battery cores corresponding to set of cells
The electrode connecting portion of connection, each electrode connecting portion is conductively connected by pole flow body, it is characterised in that：At least one electrode connects
Socket part includes should being welded with the electrode pair of corresponding single battery core the spot welding connection sheet that is electrically connected and interval is enclosed and is connected located at the spot welding
Conductive ring plate on the outside of piece, conductive ring plate is conductively connected with the pole flow body, and spot welding connection sheet passes through arc with conductive ring plate
Shape conductive arm is electrically connected, and has excessively stream fuse part on arc conductive arm.
2. the pole flow of set of cells according to claim 1, it is characterised in that：The arc conductive arm is along spot welding connecting portion
It is circumferentially-spaced to be evenly equipped with two.
3. the pole flow of set of cells according to claim 1 and 2, it is characterised in that：The pole flow body is provided with use
In the location structure by pole flow correspondence positioning assembling in the set of cells, flow body in pole is by bending elastic piece structure and institute
State electrode connecting portion to be conductively connected, pole flow body, bending elastic piece structure and electrode connecting portion form Z-shaped.
4. the pole flow of set of cells according to claim 3, it is characterised in that：The electrode connecting portion includes two positive poles
Connecting portion and two negative pole connecting portions, two positive pole connecting portions and two negative pole connecting portions are corresponding is arranged in pole flow body both sides,
The positive pole connecting portion has described spot welding connection sheet, conductive ring plate and an arc conductive arm, the negative pole connecting portion include with
The negative pole of corresponding single battery core correspondingly welds the spot welding conducting strip being electrically connected.
5. the pole flow of set of cells according to claim 3, it is characterised in that：The location structure includes being arranged at pole stream
Center positioning hole on piece body and the positioning elongated hole connected with location hole.
6. a kind of set of cells, including at least one battery module, the battery module has the monomer electricity of at least two parallel arrangements
Core and the pole flow that should be conductively connected the electrode pair of the same side of each single battery core, the pole flow connects including at least two electrodes
Socket part and the pole flow body for being conductively connected each electrode connecting portion, it is characterised in that：At least one electrode connecting portion include with
The electrode pair of corresponding single battery core should weld the spot welding connection sheet being electrically connected and enclose leading on the outside of the spot welding connection sheet with interval
Electric ring plate, conductive ring plate is conductively connected with the pole flow body, and spot welding connection sheet is with conductive ring plate by arc conductive arm electricity
Even, there is excessively stream fuse part on arc conductive arm.
7. set of cells according to claim 6, it is characterised in that：The arc conductive arm is circumferentially-spaced along spot welding connecting portion
It is evenly equipped with two.
8. the set of cells according to claim 6 or 7, it is characterised in that：The pole flow body is provided with for pole to be flowed
Piece correspondence positioning is assemblied in the location structure in the set of cells, and flow body in pole is connected by bending elastic piece structure with the electrode
Socket part is conductively connected, and pole flow body, bending elastic piece structure and electrode connecting portion form Z-shaped.
9. set of cells according to claim 8, it is characterised in that：The electrode connecting portion include two positive pole connecting portions and
Two negative pole connecting portions, two positive pole connecting portions and two negative pole connecting portions are corresponding is arranged in pole flow body both sides, the positive pole
Connecting portion has described spot welding connection sheet, conductive ring plate and arc conductive arm, and the negative pole connecting portion includes and corresponding monomer
The negative pole of battery core correspondingly welds the spot welding conducting strip being electrically connected.
10. set of cells according to claim 8, it is characterised in that：The location structure includes being arranged at pole flow body
On center positioning hole and the positioning elongated hole that connects with location hole, the set of cells includes positioning dress corresponding with the single battery core
The location-plate matched somebody with somebody, location-plate is provided with the centralized positioning post of center positioning hole positioning inserting and with described and positions elongated hole pair
Answer the positioning convex strip of inserting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131217.7U CN206116506U (en) | 2016-10-18 | 2016-10-18 | Group battery and utmost point flow thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131217.7U CN206116506U (en) | 2016-10-18 | 2016-10-18 | Group battery and utmost point flow thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116506U true CN206116506U (en) | 2017-04-19 |
Family
ID=58525895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621131217.7U Active CN206116506U (en) | 2016-10-18 | 2016-10-18 | Group battery and utmost point flow thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450128A (en) * | 2016-10-18 | 2017-02-22 | 许继电源有限公司 | Battery group and electrode current piece thereof |
| CN110998913A (en) * | 2017-10-16 | 2020-04-10 | 株式会社Lg化学 | Battery module and battery pack having the same |
| CN113614996A (en) * | 2019-03-27 | 2021-11-05 | 三洋电机株式会社 | Power supply device, electric vehicle provided with power supply device, and power storage device |
-
2016
- 2016-10-18 CN CN201621131217.7U patent/CN206116506U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450128A (en) * | 2016-10-18 | 2017-02-22 | 许继电源有限公司 | Battery group and electrode current piece thereof |
| CN110998913A (en) * | 2017-10-16 | 2020-04-10 | 株式会社Lg化学 | Battery module and battery pack having the same |
| US11450930B2 (en) | 2017-10-16 | 2022-09-20 | Lg Energy Solution, Ltd. | Battery module and battery pack having same |
| CN113614996A (en) * | 2019-03-27 | 2021-11-05 | 三洋电机株式会社 | Power supply device, electric vehicle provided with power supply device, and power storage device |
| CN113614996B (en) * | 2019-03-27 | 2024-03-15 | 三洋电机株式会社 | Power supply device, electric vehicle provided with power supply device, and power storage device |
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