CN204011501U - A kind of cylindrical battery capping structure - Google Patents
A kind of cylindrical battery capping structure Download PDFInfo
- Publication number
- CN204011501U CN204011501U CN201420257370.9U CN201420257370U CN204011501U CN 204011501 U CN204011501 U CN 204011501U CN 201420257370 U CN201420257370 U CN 201420257370U CN 204011501 U CN204011501 U CN 204011501U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- battery
- housing
- polygon
- circular 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a kind of cylindrical battery capping structure, belongs to battery manufacture and processing technique field.This block is comprised of collector plate, cover plate and sealing ring.Collector plate is pole and flow collection sheet integral structure; Closely agree with by non-circular hole with cover plate, non-circular hole is oval, polygon, or the combination of the two or more shapes in circular, oval, polygon; Cover plate side is provided with the groove of half " work " shaped sections.Adopt the battery assembling of this cylindrical battery capping structure simple precisely, contact resistance is low, good airproof performance, and has improved the reliability connecting between battery, can be applicable in lithium ion battery, obviously improves the reliability of battery structure.
Description
Technical field
The utility model is particularly related to a kind of cylindrical battery capping structure, belongs to battery manufacture and processing technique field.Adopt the battery sealing-performance of this block good, mechanical strength is high; Battery assembling is precisely simple, greatly reduces the contact resistance of battery core and block, and flow conductivity strengthens; The structural design of this combination cover cap uniqueness can increase the reliability that battery connects in groups time greatly in addition.
Background technology
Block is one of important structure part forming by battery, directly affects sealing property, heat-sinking capability and the flow conductivity of battery, and the performance of battery performance is played a key effect.Tradition cylinder battery cap generally adopts pole and cover plate integral structure, and during assembling, battery core is directly welded on cover plate, or battery core is welded in collector plate and then collector plate is connected with cover plate.There is following problem in this capping structure: first, battery, when connecting in groups, is fixedly connected with nut in the process of sheet, external force directly puts on pole, because pole and cover plate are one, may cause the pad fracture between cover plate and battery core, cause opening circuit of battery; Secondly, the battery for using collector plate, may cause collector plate to contact with cover plate not tight in assembling process, increases contact resistance, is unfavorable for the performance of power of battery characteristic; The battery using for high current charge-discharge in addition, that Yin Qinei presses is higher, easily leakage occurs, and sealing property is had to requirements at the higher level, also needs the seal means of existing block to improve.
Summary of the invention
The purpose of this utility model is to solve the above-mentioned deficiency of conventional batteries block, and a kind of novel cylinder battery cap structure is provided, good airproof performance while guaranteeing to use, and contact resistance is low, and it is convenient to assemble, and can improve the reliability that battery pack connects.
For achieving the above object, the utility model is to rely on following technology to realize: a kind of cylindrical battery capping structure, is characterized in that comprising cover plate 1, collector plate 2 and sealing ring 3; Cover plate 1 center is non-circular hole 4, and non-circular hole 4 is oval, polygon, or the combination of the two or more shapes in circular, oval, polygon; Non-circular hole 4 sides are provided with liquid injection hole 5; Cover plate 1 side is provided with the groove 6 of half " work " shaped sections; Collector plate 2 is pole 7 and flow collection sheet 8 integral structures; Pole 7 bottoms are the ellipse for agreeing with mutually with non-circular hole 4 near the lateral layout of flow collection sheet 8, polygon, or the combination of the two or more shapes in circular, oval, polygon; Pole 7 is inserted in the non-circular hole 4 at cover plate 1 center, thereby collector plate 2 is connected with cover plate 1, then collector plate 2 and cover plate 1 are fixed by Laser Welding or argon arc welding or ultrasonic bond; Sealing ring 3 cross sections are " bow " font, are closely wrapped on cover plate 1 outer edge.The assembling mode of this block and battery container 11 is that the lower edge of groove 6 is stuck on the slot rolling I 9 of housing 11, and on housing 11, edge exceeds the upper edge of groove 6; Sealing ring 3 is placed between block and housing 11; By sealing machine, housing 11 is exceeded after cap portion sealing, in groove 6 positions, to the further slot rolling bundle mouth of housing 11, on housing 11, obtain slot rolling II 10.
The beneficial effects of the utility model are: the utility model separates pole and cover plate, and being changed into, pole is placed in collector plate, diversion function and the sealing function of block are born by two parts respectively, this way makes to be welded on battery core in collector plate and the block tight connection status in controlling all the time in assembling process, solve well uncontrollable problem that traditional block contacts with battery core, greatly reduced the internal resistance that contacts of battery core and block; The utility model is designed to ellipse by collector plate and block junction in addition, polygon, or the combined shaped of the two or more shapes in circular, oval, polygon, this irregular edge is at battery series-parallel connection in groups time, can effectively alleviate pad stressed between battery core and block, and then the Welding Structure between having protected battery core and having blocked a shot is not destroyed; Last the utility model cover plate side is provided with groove, and this design provides a kind of new sealing means, can greatly improve the sealing effectiveness of battery.
Accompanying drawing explanation
The integrally-built vertical view of Fig. 1 the utility model
1. cover plate, 4. ellipse, polygon, or the non-circular hole (take hexagon as example) of the combined shaped of the two or more shapes in circular, oval, polygon, 5. liquid injection hole, 7. pole
Fig. 2 the utility model overall structure longitudinal section schematic diagram
1. cover plate, 2. collector plate, 3. sealing ring
Fig. 3 the utility model cover plate separation structure longitudinal section schematic diagram
4. ellipse, polygon, or the non-circular hole of the combined shaped of the two or more shapes in circular, oval, polygon, 5. liquid injection hole, 6. groove
Fig. 4 the utility model collector plate separation structure longitudinal section schematic diagram
7. pole, 8. flow collection sheet
The assembling mode schematic diagram of Fig. 5 the utility model block and housing
9. slot rolling I, 10. slot rolling II, 11. housings
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 5, cylindrical battery block of the present utility model is combined by cover plate 1, collector plate 2 and sealing ring 3.Its concrete execution mode is: collector plate 2 is fixed by Laser Welding with battery core, pole 7 in collector plate 2 is through the non-circular hole 4 at cover plate 1 center, the shape of pole 7 bottom shapes and non-circular hole 4 is just agreed with, then collector plate 2 and cover plate 1 are fixed by Laser Welding or argon arc welding or ultrasonic bond, integral body is put into the housing 11 after rod groove, the lower edge of half " work " font groove 6 of cover plate 1 side is stuck on the slot rolling I 9 of housing 11, after sealing, in groove 6 positions to the further slot rolling bundle mouth of housing 11.
Embodiment 1
Design cylindrical lithium ion battery, aluminium casing diameter 60mm, length 140mm.Positive pole is aluminum alloy cap, high 4mm in cover plate, upper and lower edge diameter 58mm, groove diameter 55mm between upper and lower edge, center hexagonal holes length of side 8mm, high 6mm, collector plate diameter 52mm, thickness 3mm, center pole column top is 25mm apart from the height of flow collection sheet upper surface, pole external diameter 12mm, pole is hexagon near the side of flow collection sheet, length of side 7mm, high 6mm.
Claims (2)
1. a cylindrical battery capping structure, is characterized in that comprising cover plate (1), collector plate (2) and sealing ring (3); Cover plate (1) center is non-circular hole (4), and non-circular hole (4) is oval, polygon, or the combination of the two or more shapes in circular, oval, polygon; Non-circular hole (4) side is provided with liquid injection hole (5); Cover plate (1) side is provided with the groove (6) of half " work " shaped sections; Collector plate (2) is pole (7) and flow collection sheet (8) integral structure; Pole (7) bottom is the ellipse for agreeing with mutually with non-circular hole (4) near the lateral layout of flow collection sheet (8), polygon, or the combination of the two or more shapes in circular, oval, polygon; Pole (7) is inserted in the non-circular hole (4) at cover plate (1) center, thereby collector plate (2) is connected with cover plate (1), then collector plate (2) and cover plate (1) is fixed by Laser Welding or argon arc welding or ultrasonic bond; Sealing ring (3) cross section is " bow " font, is closely wrapped on cover plate (1) outer edge.
2. according to cylindrical battery capping structure claimed in claim 1, the assembling mode that it is characterized in that this block and housing (11) is that the lower edge of groove (6) is stuck on the slot rolling I (9) of housing (11), the upper upper edge along exceeding groove (6) of housing (11); Sealing ring (3) is placed between block and housing (11); By sealing machine, housing (11) is exceeded after cap portion sealing, in groove (6) position, to the further slot rolling bundle mouth of housing (11), on housing (11), obtain slot rolling II (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257370.9U CN204011501U (en) | 2014-05-20 | 2014-05-20 | A kind of cylindrical battery capping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257370.9U CN204011501U (en) | 2014-05-20 | 2014-05-20 | A kind of cylindrical battery capping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011501U true CN204011501U (en) | 2014-12-10 |
Family
ID=52051459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257370.9U Expired - Lifetime CN204011501U (en) | 2014-05-20 | 2014-05-20 | A kind of cylindrical battery capping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725591A (en) * | 2022-03-18 | 2022-07-08 | 中国第一汽车股份有限公司 | Full-tab battery structure without top cover welding and assembly method thereof |
-
2014
- 2014-05-20 CN CN201420257370.9U patent/CN204011501U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725591A (en) * | 2022-03-18 | 2022-07-08 | 中国第一汽车股份有限公司 | Full-tab battery structure without top cover welding and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |