CN206194848U - Group battery connection piece welded structure - Google Patents
Group battery connection piece welded structure Download PDFInfo
- Publication number
- CN206194848U CN206194848U CN201621138407.1U CN201621138407U CN206194848U CN 206194848 U CN206194848 U CN 206194848U CN 201621138407 U CN201621138407 U CN 201621138407U CN 206194848 U CN206194848 U CN 206194848U
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- weld zone
- overlap
- connection piece
- hole
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 claims description 27
- 210000005069 ears Anatomy 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000178 monomer Substances 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a group battery connection piece welded structure, including two or two above monomers electricity core, connection piece, monomer electricity core has electric core utmost point ear, the both ends of connection piece form the weld zone, the both ends of connection piece are passed through the weld zone welds respectively in two on the electric core utmost point ear of monomer electricity core, the connection piece is located two the middle part position of monomer electricity core forms arched soft connection structure, soft connection structure's thickness is t, the thickness of connection piece is B, t <= B, the weld zone has circular through -hole, the weld zone with form the overlap between the monomer electricity core, the overlap is located around the through -hole, the overlap with the distance in the through -hole centre of a circle is L, the thickness of weld zone is b, L <= b. Structure through to the connection piece is improved, solves the problem that square group battery connection piece welded structure exists, simple structure, and the location is easy, and the mould shaping is with low costs, easily realizes automaticly.
Description
Technical field
The utility model is related to cell art, more particularly to a kind of battery pack connection sheet welding structure.
Background technology
With continuing to develop for lithium ion battery technology, square aluminum hull battery core is widely applied in electric automobile field.
Because square electric cell monomer capacity is high, simple structure, security is higher, and vehicle battery core quantity is relatively fewer, battery management system
It is more simple and effective.
At present, the burst mode of square electric cell mainly has two ways：One is that battery core has extreme ear structure with threaded hole,
Connection in series-parallel is tightened by pole bolt between each battery core, and this connected mode is primarily present that contact internal resistance is big, heating is serious, bolt
Easily loosen and cause safety issue；Two is that connection sheet is welded together with cell polar ear using laser, but laser welding is welded
Structure and technique also there are problems that it is more, for example：1st, laser weld energy is high, and rosin joint is difficult to discover after welding, and quality is unstable；
2nd, location difficulty, the easy off normal of laser welding, weld seam out-of-flatness；3rd, difficult, low production efficiency is automated.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, there is provided a kind of electricity of raising welding stability
Pond group connection sheet welding structure.
The purpose of this utility model is achieved through the following technical solutions：
A kind of battery pack connection sheet welding structure, including：Two or more single battery cores, connection sheet, the monomer
The two ends that battery core has cell polar ear, the connection sheet form weld zone, and the two ends of the connection sheet are distinguished by the welding
It is not welded on two cell polar ears of the single battery core so that formed between two single battery cores and conducted；
The connection sheet is located at the flexible connection structure that two medium positions of the single battery core form arch, the soft company
The thickness of binding structure is t, and the thickness of the connection sheet is B, t≤B；
The weld zone has manhole, and overlap, the overlap are formed between the weld zone and the single battery core
Around the through hole, the overlap is L with the distance in the through hole center of circle, and the thickness of the weld zone is b, L≤b.
Wherein in one embodiment, B≤5mm.
Wherein in one embodiment, the edge of the through hole forms inclined plane, and the overlap is located in the inclined plane.
Wherein in one embodiment, the inclined plane forms inclination angle a, a≤70 ° with the plane around the through hole.
Wherein in one embodiment, the weld zone is located at and groove is formed around the through hole, and the overlap is located at institute
State in groove.
Wherein in one embodiment, the groove is " ten " font groove.
A kind of battery pack connection sheet welding structure of the present utility model, is improved by the structure to connection sheet, is solved
The problem that prismatic batteries connection sheet welding structure is present, simple structure, positioning is easy, mould molding, low cost, it is easy to accomplish
Automation.
Brief description of the drawings
Fig. 1 is the welded front view of battery pack connection sheet of the embodiment of the utility model one；
Fig. 2 is the welded top view of battery pack connection sheet shown in Fig. 1；
Fig. 3 is the welded Local map of battery pack connection sheet of another embodiment；
Fig. 4 is the welded top view of battery pack connection sheet of another embodiment.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these implementation methods is to make to this practicality newly
It is more thorough comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique implementation method to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with technology of the present utility model is belonged to
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all of combination of one or more related Listed Items.
As shown in Figures 1 and 2, a kind of battery pack connection sheet welding structure 10, including：Two or more single battery cores
100th, connection sheet 200.The two ends that single battery core 100 has cell polar ear 110, connection sheet 200 form weld zone 210, connection sheet
200 two ends are respectively welded on two cell polar ears of single battery core 100 110 by weld zone 210 so that two monomer electricity
Formed between core 100 and conducted.
Connection sheet 200 is located at the flexible connection structure 220 that two medium positions of single battery core 100 form arch, is flexible coupling
The thickness of structure 220 is t, and the thickness of connection sheet 200 is B, t≤B.
Weld zone 210 has manhole 212, and overlap 300, overlap are formed between weld zone 210 and single battery core 100
300 are located at around through hole 212, and overlap 300 is L with the distance in the center of circle of through hole 212, and the thickness of weld zone 210 is b, L≤b.
It is noted that forming flexible connection structure 220 in the middle of connection sheet 200, the thickness t of flexible connection structure 220 is compared to connection
The thickness B of piece 200 is smaller, and this structure effectively reduces vibration and external force to pullling that overlap 300 is caused, and reduces destruction welding strong
Degree.
Further, this connection sheet 200 is processed using mould, and the dimensional accuracy of connection sheet 200 is higher, favourable using laser welding
Automated in being formed, improve production efficiency, reduces cost.Further, the material of connection sheet 200 is the metal materials such as aluminium or copper
Matter.
The thickness B of connection sheet 200 depends on excessively stream size, in the present embodiment, B≤5mm.
As shown in figure 3, wherein in an embodiment, the edge of through hole 212 forms inclined plane 213, and overlap 300 is located at and inclines
On face 213.The edge of through hole 212 forms inclined plane 213, is easy to welding to form overlap 300, weld strength is improved, while being easy to
Discover rosin joint.Laser welding head is the center of circle of the through hole 212 skew certain distance welding of the weld zone 210 of b, the weldering after skew along thickness
Contact falls in inclined plane 213, is more beneficial for fusion connection piece and cell polar ear, strengthens weld strength.
Further, the plane around inclined plane 213 and through hole 212 forms inclination angle a, a≤70 °.
As shown in figure 4, in another embodiment, weld zone 210 is located at the surrounding of through hole 212 and forms " ten " font groove 214,
Overlap 300 is located in groove 214.After laser welding skew overlap 300 fall it is optimal in the center of the length of groove 214, due to
After forming this groove 214, more intuitively observe welding and form the situation of overlap 300, rosin joint defect is found in time.
A kind of battery pack connection sheet welding structure 10 of the present utility model, is improved by the structure to connection sheet 200,
Square battery pack connection sheet welding structure is solved the problems, such as, simple structure, positioning is easy, mould molding, low cost, it is easy to
Realize automation.
The above implementation method only expresses several embodiments of the present utility model, and its description is more specific and detailed
Carefully, but can not therefore and be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that general for this area
For logical technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these are all
Belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of battery pack connection sheet welding structure, it is characterised in that including：Two or more single battery cores, connection sheet,
The two ends that the single battery core has cell polar ear, the connection sheet form weld zone, and the two ends of the connection sheet are by described
Weld zone is respectively welded on two cell polar ears of the single battery core so that form conductance between two single battery cores
It is logical；
The connection sheet is located at the flexible connection structure that two medium positions of the single battery core form arch, the knot that is flexible coupling
The thickness of structure is t, and the thickness of the connection sheet is B, t≤B；
The weld zone has manhole, and overlap is formed between the weld zone and the single battery core, and the overlap is located at
Around the through hole, the overlap is L with the distance in the through hole center of circle, and the thickness of the weld zone is b, L≤b.
2. battery pack connection sheet welding structure according to claim 1, it is characterised in that B≤5mm.
3. battery pack connection sheet welding structure according to claim 1, it is characterised in that the edge of the through hole is formed and inclined
Inclined-plane, the overlap is located in the inclined plane.
4. battery pack connection sheet welding structure according to claim 3, it is characterised in that the inclined plane and the through hole
The plane of surrounding forms inclination angle a, a≤70 °.
5. battery pack connection sheet welding structure according to claim 1, it is characterised in that the weld zone is located at described logical
Groove is formed around hole, the overlap is located in the groove.
6. battery pack connection sheet welding structure according to claim 5, it is characterised in that the groove is " ten " font
Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138407.1U CN206194848U (en) | 2016-10-19 | 2016-10-19 | Group battery connection piece welded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138407.1U CN206194848U (en) | 2016-10-19 | 2016-10-19 | Group battery connection piece welded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206194848U true CN206194848U (en) | 2017-05-24 |
Family
ID=58732256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138407.1U Active CN206194848U (en) | 2016-10-19 | 2016-10-19 | Group battery connection piece welded structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206194848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571400A (en) * | 2019-09-20 | 2019-12-13 | 江西优特汽车技术有限公司 | power battery module bus bar and welding method thereof |
-
2016
- 2016-10-19 CN CN201621138407.1U patent/CN206194848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571400A (en) * | 2019-09-20 | 2019-12-13 | 江西优特汽车技术有限公司 | power battery module bus bar and welding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210305 Address after: 448000 No.68 Jingnan Avenue, Duodao District, Jingmen high tech Zone, Jingmen City, Hubei Province Patentee after: Hubei EVE Power Co.,Ltd. Address before: 516006 No. 36 Huifeng seven road, Zhongkai hi tech Zone, Huizhou, Guangdong Patentee before: GUANGZHOU EVE CENS NEW ENERGY SYSTEM Co.,Ltd. |
|
| TR01 | Transfer of patent right |