CN201478348U - Steel casing for batteries and capacitors - Google Patents
Steel casing for batteries and capacitors Download PDFInfo
- Publication number
- CN201478348U CN201478348U CN2009203015963U CN200920301596U CN201478348U CN 201478348 U CN201478348 U CN 201478348U CN 2009203015963 U CN2009203015963 U CN 2009203015963U CN 200920301596 U CN200920301596 U CN 200920301596U CN 201478348 U CN201478348 U CN 201478348U
- Authority
- CN
- China
- Prior art keywords
- box hat
- steel casing
- capacitors
- batteries
- battery
- 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 - Fee Related
Links
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 steel casing for batteries and capacitors, belonging to the technical field of battery and capacitor production. One end of the steel casing is an opened cylindrical structure, the opening end of the steel casing forms a flared structure, a continuous annular high-finish area which is formed by local extrusion is formed at a root portion of the inner wall of the steel casing approaching the flared structure, and the roughness of the high-finish area is equal to or lower than Ra0.8. The steel casing for batteries and capacitors which can increase leak-proof property and is reliable in sealing performance resolves problems that the existing steel casings for batteries and capacitors are poor in leak-proof property and the like.
Description
Technical field
The utility model relates to a kind of battery, electric capacity box hat, belongs to the technical field of battery, the electric capacity manufacturing.
Technical background
Typical cylindrical alkaline battery relies on as the battery steel shell of container with forming seal after the crimping reducing mutually between the sealing ring, thereby reaches the no-leak requirement of content chemical substance.Box hat as container is that sheet metal passes through punching stretch technology acquisition tubular structure, and drawing process be a light sheet material from around toward the third side to process of flowing, along with flowing of material, surface at wooden partition can produce certain metamorphosis, wherein main is to have along the raceway groove of expanded material flow direction to produce, as seen these raceway grooves also not obvious under naked eyes under the normal condition, but, can find that this variation of surface formation raceway groove is quite tangible by micro-paired observation to sheet material stretching front and rear panel wall surface.
The box hat of this band raceway groove can form capillary channel after cooperating with sealing ring, battery content chemical substance is produced by this capillary channel leaks, so, can not obtain reliable sealing effect only according to the cooperation between box hat and the sealing ring, in practice, also need utilize sealant that the ponding of capillary channel is reached leak preventing effect at the matching surface coating sealant of box hat and sealing ring.
But, under the more situation of content chemical liquid, chemical liquid often produces corrosion function to sealant, under some special capillary pattern, sealant can not reliably stop up capillary channel, sealant often is difficult to keep for a long period of time the due situation as chemicals, and these all can have influence on the short-term or the long term seal effect of battery.
Summary of the invention
The utility model purpose is to provide a kind of can improve anti-leakage performance, and reliable sealing battery, electric capacity box hat have solved the problems such as the poor-performing of anti-leakage of existing battery, the existence of electric capacity box hat.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it is the tubular structure of an end opening, the openend of box hat forms the enlarging structure, described box hat inwall is formed with one by the local continuous annular best bright finish zone that forms of extruding near the root position of enlarging structure, and the roughness in described best bright finish zone is smaller or equal to Ra0.8.The capillary channel of box hat enlarging position inwall is eliminated or eliminated to a certain extent to the utility model, improved the leakproof energy of battery significantly.The utility model can destroy the raceway groove that is formed on the box hat inwall owing to Sheet Metal Forming Technology by subsequent handling, promptly extruding rod or the squeegee roller by best bright finish carries out the brute force extruding to box hat enlarging position inner surface, because the surrender of material, the gully can be flattened, thereby destroyed the formation of the capillary channel of formation after these gullies cooperate with sealing ring originally, thereby the matching surface that cooperates between the same sealing ring of acquisition best bright finish, under the further effect of sealant, obtain the higher leakproof energy of battery.
As preferably, described enlarging structure root forms the diameter transition structure with upper/lower positions, and described best bright finish area distribution is in the root inwall of diameter transition inner structural wall and enlarging structure.Wherein, the best bright finish zone is distributed to the root inwall of diameter transition inner structural wall and enlarging structure simultaneously, can guarantees the sealing that cooperates between box hat inwall and the sealing ring further to improve anti-leakage performance of the present utility model.
As preferably, the roughness in described best bright finish zone more than or equal to Ra0.2 smaller or equal to Ra0.8.
Therefore, the utlity model has and to improve anti-leakage performance, seal characteristics such as reliable.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, Fig. 1 is the sectional view of battery steel shell housing of the present utility model, and its profile is cylindric, one end opening, the sealing of one end forms the barrel dliameter D2 of the openend inside diameter D 1 of enlarging structure greater than the housing stack shell, and transition structure CD is arranged between D1 and the D2.Oblique line overlay area among Fig. 1 is for forming a continuous annular best bright finish area B D by the extruding part, best bright finish area B D has comprised that internal diameter is the inwall of the internal diameter transition structure CD between the box hat stack shell of D2 and the enlarging that internal diameter is D1, comprised that also internal diameter is that the regional area of the AC section at D1 enlarging position is the BC segment limit, this zone is an internal diameter transitional region CD scope adjacency between the box hat stack shell of D2 and the enlarging position that internal diameter is D1 with internal diameter, and does not extend to battery seal bead segments AB section at this position.The surface roughness in best bright finish zone is Ra0.2.
According to the detailed description of present embodiment, further range of application of the present invention can be clearer, yet although should be appreciated that it proposes as battery applications, be suitable for equally for the capacitor of similar structures, super capacitor etc.
Claims (3)
1. a battery, electric capacity box hat, the tubular structure that is an end opening, the openend of box hat forms the enlarging structure, it is characterized in that described box hat inwall is formed with one by the local continuous annular best bright finish zone that forms of extruding near the root position of enlarging structure, the roughness in described best bright finish zone is smaller or equal to Ra0.8.
2. battery according to claim 1, electric capacity box hat is characterized in that described enlarging structure root forms the diameter transition structure with upper/lower positions, and described best bright finish area distribution is in the root inwall of diameter transition inner structural wall and enlarging structure.
3. battery according to claim 1 and 2, electric capacity box hat, the roughness that it is characterized in that described best bright finish zone more than or equal to Ra0.2 smaller or equal to Ra0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203015963U CN201478348U (en) | 2009-03-25 | 2009-03-25 | Steel casing for batteries and capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203015963U CN201478348U (en) | 2009-03-25 | 2009-03-25 | Steel casing for batteries and capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478348U true CN201478348U (en) | 2010-05-19 |
Family
ID=42414608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203015963U Expired - Fee Related CN201478348U (en) | 2009-03-25 | 2009-03-25 | Steel casing for batteries and capacitors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005543A (en) * | 2010-11-03 | 2011-04-06 | 深圳市豪鹏科技有限公司 | Steel battery shell and manufacturing method thereof, sizing grinding tool and battery |
| CN106099198A (en) * | 2016-07-22 | 2016-11-09 | 惠州亿纬锂能股份有限公司 | A kind of lithium battery structure and battery core thereof enter shell side method |
| CN113488728A (en) * | 2021-07-02 | 2021-10-08 | 横店集团东磁股份有限公司 | Cylindrical battery |
| CN115275456A (en) * | 2022-08-24 | 2022-11-01 | 广州小鹏汽车科技有限公司 | Battery and battery packaging method |
-
2009
- 2009-03-25 CN CN2009203015963U patent/CN201478348U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005543A (en) * | 2010-11-03 | 2011-04-06 | 深圳市豪鹏科技有限公司 | Steel battery shell and manufacturing method thereof, sizing grinding tool and battery |
| CN106099198A (en) * | 2016-07-22 | 2016-11-09 | 惠州亿纬锂能股份有限公司 | A kind of lithium battery structure and battery core thereof enter shell side method |
| CN113488728A (en) * | 2021-07-02 | 2021-10-08 | 横店集团东磁股份有限公司 | Cylindrical battery |
| CN113488728B (en) * | 2021-07-02 | 2022-06-28 | 横店集团东磁股份有限公司 | Cylindrical battery |
| CN115275456A (en) * | 2022-08-24 | 2022-11-01 | 广州小鹏汽车科技有限公司 | Battery and battery packaging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20180325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |