CN106654135A - Conductive connection structure for cylindrical power battery modules - Google Patents
Conductive connection structure for cylindrical power battery modules Download PDFInfo
- Publication number
- CN106654135A CN106654135A CN201710135099.XA CN201710135099A CN106654135A CN 106654135 A CN106654135 A CN 106654135A CN 201710135099 A CN201710135099 A CN 201710135099A CN 106654135 A CN106654135 A CN 106654135A
- Authority
- CN
- China
- Prior art keywords
- spring
- cylinder manifold
- battery modules
- battery
- piece type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 30
- 239000012634 fragment Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a conductive connection structure for cylindrical power battery modules. The conductive connection structure comprises nickel sheets, holders, cells, battery modules and an elastic sheet type convergence plate. The conductive connection structure is characterized by that the conductive connection structure of front holders and front nickel sheets, and the elastic sheet type convergence plate, rear nickel sheets and rear holders is employed between adjacent battery modules. Compressing structures are employed among front nickel sheets, the elastic sheet type convergence plate and the rear nickel sheets. The adjacent battery modules are in compressing connection through locking elements. According to the conductive connection structure, a traditional convergence plate structure is changed; moreover, a conductive connection mode between the cell modules is improved, the conductive distance is optimized; through compressing connection of the battery modules and the elastic sheet type convergence plate, potential safety hazards resulting from screw fall-off are reduced; compared with the screw fastening convergence plate, the elastic sheet type convergence plate has the advantage that the weight is reduced; most importantly, through adoption of the elastic sheet type convergence plate, the current transmission distance between the two battery modules is the shortest; the resistance is reduced; and direct connection between an anode and a cathode is achieved.
Description
Technical field
The present invention relates to new energy resource power battery technical field, it is the present invention relates to a kind of new confluxes more to cut true saying
Plate is fixedly connected electrically conducting manner.
Background technology
New-energy automobile refer to using unconventional vehicle fuel as know-why that power resources are formed it is advanced, have
The automobile of new technique, new construction.
Used as a kind of new clean energy resource, because lithium-ion-power cell has, energy density is big, safety is good, weight
Gently, the advantages of having extended cycle life, has been widely used in the energy-storage system in new-energy automobile.Especially in electric automobile energy storage
Field, lithium-ion-power cell has become first-selected battery variety.
Lithium-ion-power cell is particularly cylindrical battery and typically single battery core is connected in parallel using cylinder manifold and carries out group
Fill, be fixed in battery core bracket by the way of lock screw more than the fixation of current cylinder manifold, the method the number of working processes is longer, and spiral shell
Easily fall in battery core group during silk operation, cause short circuit, and there is the cylinder manifold assembly of shrapnel device, be then common in order to strengthen
Or the electric conductivity of modified model cylinder manifold, that is, strengthen conductive contact area and contact force and arise at the historic moment.
Such as：Application number： CN201521140981.6《The battery modules of electric automobile》, it includes multiple battery cores, houses electricity
The support of core, the cylinder manifold for being assembled in support, the cylinder manifold includes metallic plate and is assembled in the sheet metal of metallic plate, described
The elastic that sheet metal includes substrate, the multiple circular holes on substrate and extends from the edge of circular hole.Elastic includes position
In a pair of elastic arms at the edge of the contact site and connection contact site and circular hole at its center.Contact site is abutted with the electrode of battery core
And be fixed together by spot welding.
Application number： CN201620685425.5《Battery modules circuit board》, including support, cylinder manifold, metal connecting sheet and
Metal clips；The cylinder manifold includes upper surface and the lower surface opposite with upper surface, is provided with the support first surface
Multiple metal connecting sheets, each metal connecting sheet is corresponding with a through hole and is electrically connected to cylinder manifold；The metal clips
Quantity is corresponding with the quantity of institute's metal connecting sheet, and each metal clips is arranged on one metal connecting sheet of correspondence.Assembling
When, first the cylinder manifold is arranged on the support second surface, wherein the upper surface is fitted with second surface, the receipts
Hold hole to correspond and be interconnected with through hole.Then metal connecting sheet is arranged on the support first surface, each gold
Category connection sheet is corresponding with a through hole and is electrically connected to cylinder manifold.Each metal clips is arranged at one metal connection of correspondence
It is on piece and in electrical contact with a corresponding metal connecting sheet.Metal clips is arranged in the circular body portion of the metal connecting sheet
And positioned at housing in raised, the annular base of the metal clips is engaged with projection is housed.The also application number of analog structure：
CN201620693231.X《A kind of attachment structure of novel power battery》, including cylinder manifold and the cylinder manifold connection
Frame and setting shell fragment on the bracket, the shell fragment is contacted with the electrokinetic cell.
Even so, the existing plate technique that confluxes can't be satisfactory.Use such as the cylinder manifold of spring-piece type can instead of
The loaded down with trivial details technique of common cylinder manifold, the spot-welding technology of nickel sheet, screw assembly technology etc..The cylinder manifold of spring-piece type will be without common
The trouble and worry of cylinder manifold.For example：Spot welding aluminium wire comes off, the cell safety hidden danger that causes；The dismounting maintenance of battery modules.Cause
This, prior art also needs to continue to optimize.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to the cylinder manifold for employing spring-piece type carrys out solid line battery
Current conduction between module, so as to provide a kind of conduction connecting structure of cylinder electrokinetic cell module.
What the present invention was realized in：
A kind of conduction connecting structure of cylinder electrokinetic cell module, including the remittance of nickel sheet, support, battery core, battery module and spring-piece type
Stream plate, being conductively connected using fore-stock, front nickel sheet and spring-piece type cylinder manifold, rear nickel sheet and after-poppet between adjacent cell module
Structure, is compressing structure between front nickel sheet, spring-piece type cylinder manifold and rear nickel sheet, adopts locking member pressure between adjacent cell module again
It is close to and connects.
Further, spring-piece type cylinder manifold is provided with some spring plate units, and each spring plate unit is correspondingly arranged at adjacent electricity
At the battery location of pond module, spring plate unit includes front elasticized flaps and rear elasticized flaps, front elasticized flaps and rear elasticized flaps
The tow sides and elasticized flaps for being correspondingly arranged at spring-piece type cylinder manifold are projective structure.
Further, the front elasticized flaps and rear elasticized flaps of spring plate unit are crisscross arranged, be crisscross arranged using one-to-one or
It is crisscross arranged for a pair two, the battery positive and negative electrode of front elasticized flaps and rear elasticized flaps respectively for adjacent battery modules.
Further, some location holes are additionally provided with spring-piece type cylinder manifold, spring-piece type cylinder manifold is fitted on battery module, institute
State the alignment pin that some location holes and battery module be provided with and correspond and be located by connecting.
Further, the locking member includes screw, nut and screw rod, the fore-stock and after-poppet between adjacent cell module
Between respectively by a locking member compress connection；Or the support between multiple battery modules compresses connection by a set of locking member.
The present invention changes the structure of traditional cylinder manifold, while improving between battery core module conductive connection manner and excellent
Conductive distance is changed, can effectively reduce the assembling amount in assembling process, assembling is simple easily, reduces the use of material；Electricity
Pond module is connected with the compression of spring-piece type cylinder manifold, reduces screw and comes off the potential safety hazard brought；Confluxing using spring-piece type
Plate alleviates weight compared to the cylinder manifold of fastened by screw；Main is to make two pieces of battery modules using the cylinder manifold of spring-piece type
Between electric current transmission distance it is most short, resistance reduces, and is the connection between direct both positive and negative polarity.
Compare the excellent formula of tradition connection：
1st, in the course of processing summary of whole cylinder manifold, traditional battery module is with the connection of the alignment pin of battery module：
Nickel sheet and cylinder manifold（Copper coin）Using laser welding two materials are coupled together to form conductor, another side nickel sheet and cylinder manifold（Copper
Plate）Using laser welding two materials are coupled together to form conductor, then will by welding or lock screw fashion by two cylinder manifolds
Module composition can pass through coupling together for high current；The present invention is not required to carry out nickel sheet and cylinder manifold laser welding, but adopts
Cylinder manifold is carried out to do elastic design, external force is used（Screw rod）The nickel sheet of one end is entered again with middle cylinder manifold with the nickel sheet of the other end
Row multiple spot elastic connection forms conductor, it is seen then that same battery modules can reduce half using the present invention than traditional technique
Cylinder manifold material（Copper coin）Using.
2nd, due to connection be directly from battery module one end directly by the elastic connecting contact above nickel sheet and cylinder manifold to
The nickel sheet end of another battery module, conductive apart from short, and branch's many places contact, contact area is big, such that it is able to pass through high current,
The reduction of conducting impedance, the loss for reducing electricity, difference is that traditional mode employs two identical plane cylinder manifolds companies
Connect, the terminal then drawn by plane cylinder manifold again is turned on by screw connection, electric current is that very bang path is remote, and can be two
Collect heating at individual terminal；The loss of battery electric quantity is increased, produced heat is also there is very big danger to battery core
Property；
3rd, the present invention just simplifies laser spot welding or Material cladding technique from the raw material of power battery pack, in cylinder manifold
Material also using being also the reduction of half, the decline also very big to the cost of whole set of cells；When producing in enormous quantities, it is also
Reducing needs to weld or lock screw technique between original cylinder manifold and brings uncontrollable contact inconsistence problems, therefore, this
The bright production efficiency and quality for also optimizing whole module.
Description of the drawings
The exploded perspective view of Fig. 1 embodiment of the present invention 1.
The general construction schematic diagram of Fig. 2 embodiment of the present invention 1.
The spring-piece type of Fig. 3 embodiment of the present invention 1 confluxes plate structure schematic diagram.
The spring-piece type cylinder manifold effect structure figure of Fig. 4 embodiment of the present invention 1.
The spring-piece type cylinder manifold cross section structure schematic diagram of Fig. 5 embodiment of the present invention 1.
The spring-piece type cylinder manifold partial structural diagram of Fig. 6 embodiment of the present invention 1.
The spring-piece type cylinder manifold mounting structure schematic diagram of Fig. 7 embodiment of the present invention 1.
In figure：Cylinder electrokinetic cell module 100, adjacent cell module 100A, front nickel sheet 100A2, fore-stock 100A3, electricity
Core 100A4, screw 100A5, nut 100A6, screw rod 100A7, after-poppet 100A8, rear nickel sheet 100A9, battery module 101 is fixed
Position pin 101A, spring-piece type cylinder manifold 102, location hole 102A, spring plate unit 102B.
Specific embodiment
In order that technological means, technical characteristic, reached purpose and effect that the present invention is realized are easy to understand, below tie
Close the drawings and specific embodiments to further illustrate the present invention.
Embodiment 1：
As illustrated,
Exploded perspective view as shown in Figure 1, the conductive connection manner of the battery modules is：By battery module 101 and spring-piece type
The compression fit of cylinder manifold 102, the material that spring-piece type cylinder manifold 102 is adopted is red copper nickel plating, is conducive to the conducting of electric current and passes
Pass.Fore-stock 100A3, front nickel sheet 100A2 and spring-piece type cylinder manifold 102, rear nickel sheet are adopted between adjacent cell module 100A
The conduction connecting structure of 100A9 and after-poppet 100A8, between front nickel sheet 100A2, spring-piece type cylinder manifold 102 and rear nickel sheet 100A9
For compressing structure, compressed using locking member again between adjacent cell module 100A and connected.
As shown in Fig. 3,4,5,6, the structure of spring-piece type cylinder manifold 102 is：Spring-piece type cylinder manifold 102 is provided with some bullets
Blade unit 102B, each spring plate unit 102B is correspondingly arranged at the battery location of adjacent battery modules 101, spring plate unit 102B
There are the elasticized flaps of protrusion relative to the two sides of spring-piece type cylinder manifold 102.Spring plate unit 102B includes front elasticized flaps with after
Elasticized flaps, front elasticized flaps and rear elasticized flaps are correspondingly arranged at the tow sides and elasticized flaps of spring-piece type cylinder manifold 102
For projective structure.
The front elasticized flaps and rear elasticized flaps of spring plate unit 102B are crisscross arranged, and are crisscross arranged or a pair using one-to-one
Two are crisscross arranged, the battery positive and negative electrode of front elasticized flaps and rear elasticized flaps respectively for adjacent battery modules 101.
Some location hole 102A are additionally provided with spring-piece type cylinder manifold 102, on some location hole 102A and battery module
The alignment pin 101A being provided with is corresponded and is located by connecting.The alignment pin 101A of battery module and the location hole of spring-piece type cylinder manifold
The rigging position of 102A, spring-piece type cylinder manifold 102 is fitted on battery module 101.
Spring-piece type cylinder manifold 102 is pressed on battery module 101（Such as Fig. 7）, make location hole 102A and battery modules alignment pin
101A assemble, spring-piece type cylinder manifold 102 is fixed on battery module 101, make in spring-piece type cylinder manifold 102 each protrude
The corresponding connection of spacing between spring plate unit 102B and front nickel sheet 100A2, realizes the connection of beeline, realizes leading for electric current
It is logical.
The assembling mode of the mutual compression type of ear, makes each spring plate unit formula between by several battery modules 101
The spring plate unit 102B of the both sides of cylinder manifold 102 protrusion is realized to the current lead-through between adjacent cell module 100A, then logical
Cross locking nut and screw rod etc. and be connected locking member（Such as screw 100A5, nut 100A6, screw rod 100A7）Locking one cylinder of composition
Electrokinetic cell module 100, such as Fig. 2.
Pass through a locking member pressure between fore-stock 100A3 and after-poppet 100A8 between adjacent cell module 100A respectively
It is close to and connects；Or the support between multiple battery modules compresses connection by a set of locking member.
On ultimate principle, principal character, frame mode and the advantages of the present invention of the present invention has been shown and described.The industry
Technical staff it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description simply
The principle of the present invention is illustrated, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications,
These changes and improvements are both fallen within scope of the claimed invention.The claimed scope of the invention is by appended claim
Book and its equivalent thereof.
Claims (5)
1. a kind of conduction connecting structure of cylinder electrokinetic cell module, including nickel sheet, support, battery core, battery module and spring-piece type
Cylinder manifold, it is characterised in that adjacent cell module（100A）Between adopt fore-stock（100A3）, front nickel sheet（100A2）With shell fragment
Formula cylinder manifold（102）, rear nickel sheet（100A9）And after-poppet（100A8）Conduction connecting structure, front nickel sheet（100A2）, spring-piece type
Cylinder manifold（102）With rear nickel sheet（100A9）Between be compressing structure, adjacent cell module（100A）Between again adopt locking member pressure
It is close to and connects.
2. a kind of conduction connecting structure of cylinder electrokinetic cell module according to claim 1, it is characterised in that spring-piece type
Cylinder manifold（102）Be provided with some spring plate units（102B）, each spring plate unit（102B）It is correspondingly arranged at adjacent cell mould
Block（101）Battery location at, spring plate unit（102B）Including front elasticized flaps and rear elasticized flaps, front elasticized flaps and rear bullet
Property flank is correspondingly arranged at spring-piece type cylinder manifold（102）Tow sides and elasticized flaps be projective structure.
3. a kind of conduction connecting structure of cylinder electrokinetic cell module according to claim 2, it is characterised in that shell fragment list
Unit（102B）Front elasticized flaps and rear elasticized flaps be crisscross arranged, be crisscross arranged or a pair two are crisscross arranged using one-to-one,
Front elasticized flaps and rear elasticized flaps are respectively for adjacent battery modules（101）Battery positive and negative electrode.
4. a kind of conduction connecting structure of the cylinder electrokinetic cell module according to Claims 2 or 3, it is characterised in that bullet
Chip cylinder manifold（102）On be additionally provided with some location holes（102A）, spring-piece type cylinder manifold（102）Fit in battery module（101）
On, some location holes（102A）The alignment pin being provided with battery module（101A）One-to-one corresponding is located by connecting.
5. a kind of conduction connecting structure of cylinder electrokinetic cell module according to claim 1, it is characterised in that the lock
Tight part includes screw（100A5）, nut（100A6）And screw rod（100A7）, adjacent cell module（100A）Between fore-stock
（100A3）And after-poppet（100A8）Between respectively by a locking member compress connection；Or the support between multiple battery modules leads to
Cross a set of locking member and compress connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135099.XA CN106654135A (en) | 2017-03-08 | 2017-03-08 | Conductive connection structure for cylindrical power battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135099.XA CN106654135A (en) | 2017-03-08 | 2017-03-08 | Conductive connection structure for cylindrical power battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654135A true CN106654135A (en) | 2017-05-10 |
Family
ID=58847162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135099.XA Pending CN106654135A (en) | 2017-03-08 | 2017-03-08 | Conductive connection structure for cylindrical power battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654135A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258179A (en) * | 2018-03-22 | 2018-07-06 | 华霆（合肥）动力技术有限公司 | battery pack and electric vehicle |
| CN108832170A (en) * | 2018-06-11 | 2018-11-16 | 上海游侠汽车有限公司 | A kind of new-energy automobile power battery module |
| CN110112336A (en) * | 2018-02-01 | 2019-08-09 | 三星Sdi株式会社 | Battery pack |
| CN114221079A (en) * | 2021-12-14 | 2022-03-22 | 顺加能科技有限公司 | Be used for cylinder electricity core welded module support |
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| CB03 | Change of inventor or designer information | ||
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Inventor after: Liu Qiangen Inventor after: Fu Delu Inventor before: Liu Qiangen Inventor before: Fu De Lu |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |