CN202695597U - Lithium battery structure - Google Patents
Lithium battery structure Download PDFInfo
- Publication number
- CN202695597U CN202695597U CN2012203115569U CN201220311556U CN202695597U CN 202695597 U CN202695597 U CN 202695597U CN 2012203115569 U CN2012203115569 U CN 2012203115569U CN 201220311556 U CN201220311556 U CN 201220311556U CN 202695597 U CN202695597 U CN 202695597U
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- CN
- China
- Prior art keywords
- lithium battery
- obturator
- battery structure
- housing
- volume core
- 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
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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
Abstract
The utility model belongs to the technical field of lithium battery preparation, in particular to a lithium battery structure comprising a case, a rolling core and a cover cap. The rolling core is arranged in the case and the cover cap is arranged at the upper end of the case. The lithium battery structure is characterized in that the case is provided with a rolling groove position, and a filling body arranged between the rolling groove position and the rolling core is provided with an opening hole for a pole rear of a positive pole to pass through. The lithium battery structure is convenient to manufacture and simple in assembling process, enables the internal rolling core to be stable, protects good connection of the pole rear of the positive pole, and improves use safe performance of batteries.
Description
Technical field
The utility model belongs to the battery preparing technical field, particularly a kind of lithium battery structure.
Background technology
Along with the development of economy, the application of cylinder box hat lithium battery is more and more extensive.At present, the internal diameter of existing conventional cylinder box hat lithium battery is usually slightly larger than the external diameter of interior roll core.Because the needs of client self product, for the low-capacity batteries of specifying model, often need to improve by the mode that increases volume core diameter, reduction both positive and negative polarity compacted density and thickening copper aluminum foil thickness the assembling ratio of battery, battery after making mainly contains two kinds of structures, a kind of both positive and negative polarity uses the narrower pole piece of relative box hat height in order to allow the external diameter of volume core near the internal diameter of box hat, and the above's pad is placed on to be rolled up on the core, positive pole ear passes top pad, then is welded on the anodal block base plate.Owing between top pad and the slot rolling position larger spacing is arranged, is unfavorable for rolling up the fixing of core.The pole piece that another kind of both positive and negative polarity uses and the box hat height is complementary, but because capacity is low, the external diameter of volume core can be less than the box hat internal diameter, the firm degree of the both positive and negative polarity tab welding that fixedly places one's entire reliance upon of volume core.Adopt the battery of these two kinds of structures, through jolt or vibrate after its both positive and negative polarity lug fracture easily, roll over and hinder or sealing-off, low pressure can appear in battery, and high internal resistance and the situation that can't discharge and recharge also can cause the positive pole ear of sealing-off to run into the negative pole box hat and be short-circuited when serious.
Summary of the invention
The purpose of this utility model is to overcome the unsteady problem of volume core when producing the low-capacity batteries of specifying model in the prior art, and a kind of lithium battery structure is provided, and it is easy to assembly that it has processing, volume core stable connection, the characteristics that positive pole ear is effectively protected.
For achieving the above object, the utility model adopts following technical proposals:
A kind of lithium battery structure, comprise housing, volume core and block, described volume core is positioned at described housing, described block is positioned at described housing upper end, it is characterized in that: described housing is provided with the slot rolling position, be provided with obturator between slot rolling position and the described volume core, obturator is provided with the perforate of passing for positive pole ear.
Wherein, described obturator is hollow structure, and the upper end is provided with upper plate, and the lower end is provided with lower plate, and lower plate and described upper plate respectively are provided with described perforate.
Wherein, the ratio of the maximum outside diameter of the aperture of described perforate and described obturator is 0.1-0.5:1.
Wherein, the ratio of the internal diameter of the maximum outside diameter of described obturator and described housing is 0.95-1:1.
Wherein, the spacing between the lower edge of the slot rolling position of the upper plate of described obturator and described housing is 0-0.8mm, described lower plate and described volume core butt.
Wherein, described obturator is cylinder.
Wherein, described obturator is polyhedron.
Wherein, described obturator is plastic body.
Wherein, described volume core lower end is provided with heelpiece.
The beneficial effects of the utility model: during the battery assembling; the volume core identical with the housing internal diameter put in the housing, then put into obturator, positive pole ear passes perforate and is welded on the anodal base plate of blocking a shot; obturator has been filled the space between volume core and the slot rolling position; the volume core well has been fixed in the housing,, lithium battery structure of the present utility model is easily manufactured; assembly technology is simple; can allow the interior roll core more firm, the good connectivity of protection positive pole ear, the usage safety performance of raising battery.
Description of drawings
Fig. 1 is the overall structure schematic diagram of a kind of lithium battery structure of the utility model.
Fig. 2 is the structural representation of the obturator of a kind of lithium battery structure of the utility model.
Reference numeral:
1---block 2---sealing ring 3---obturator 4---positive pole ears
5---housing 6---volume core 7---heelpiece 8---upper plates
81---the upper lower plate holes of plate hole 9---lower plate 91---.
Embodiment
1 to 2 pair of the utility model is described in detail by reference to the accompanying drawings.
Embodiment one.
A kind of lithium battery structure, comprise housing 5, volume core 6 and block a shot 1, described volume core 6 is positioned at described housing 5, described block 1 is positioned at described housing 5 upper ends, described housing 5 is provided with the slot rolling position, be provided with obturator 3 between slot rolling position and the described volume core 6, obturator 3 is provided with the perforate of passing for positive pole ear 4.During the battery assembling, the volume core 6 identical with housing 5 internal diameters put in the housing 5, then put into obturator 3, positive pole ear 4 passes on the base plate that perforate is welded on anodal block 1, obturator 3 is fixed on volume cores 6 in the housing 5, will block a shot 1 to be put in to seal on the slot rolling position and to get final product.Volume core 6 can be made according to client's demand the capacity of different size; only needing more, the height of exam paper assessment core 6 gets final product; housing 5 interior remaining space utilization obturators 3 are filled fixing; can effectively fix volume core 6; positive pole ear 4 passes perforate and is connected to positive pole; effective protection positive pole ear 4 wound that do not fractureed, battery use safety and stability.
Described obturator 3 is hollow structure, and the upper end is provided with upper plate 8, and upper plate 8 is provided with plate hole 81, and the lower end is provided with lower plate 9, and lower plate 9 is provided with lower plate hole 91.Obturator 3 is simple in structure, and hollow structure is saved material and reduced the weight of whole lithium battery, and upper and lower plates is respectively offered perforate, is convenient to the assembling of positive pole ear 4.
The ratio of the maximum outside diameter of the aperture of described perforate and described obturator 3 is 0.1-0.5:1.The aperture is too small, is unfavorable for the assembling of positive pole ear 4, and the aperture is excessive, then can't be preferably fixing positive pole ear 4, cause positive pole ear 4 to fracture because rock easily or roll over and hinder or sealing-off.The ratio of the maximum outside diameter of the aperture of perforate and described obturator 3 is 0.1-0.5:1, assembling that can workman convenient for assembly, and can protect preferably and fixing positive pole ear 4, improve the usage safety performance of lithium battery.
The ratio of the internal diameter of the maximum outside diameter of described obturator 3 and described housing 5 is 0.95-1:1.Obturator 3 in the present embodiment is injection molded into cylindrical shape, the ratio of the internal diameter of external diameter and housing 5 is 95%-100%, can there be certain error with housing 5 in obturator 3 in die sinking, therefore the external diameter of obturator 3 is smaller a little than the internal diameter of housing 5, obturator 3 still can assemble into when producing error to satisfy, and makes things convenient for workman's assembling.
Described obturator 3 in the present embodiment is cylinder.Cylinder is consistent, easy to assembly with the shape of housing 5, volume core 6, and modeling is simple.
Spacing between the lower edge of the upper plate 8 of described obturator 3 and the slot rolling position of described housing 5 is 0-0.8mm, described lower plate 9 and described volume core 6 butts.Between the slot rolling position of obturator 3 and housing 5 little gap is set, the first, can prevent that obturator 3 from contacting tension with the slot rolling position and pinch affects the safety in utilization of battery, the second, suitably little gap also can prevent too rocking of obturator 3.
Embodiment two.
The difference of present embodiment and embodiment one is: obturator be shaped as polyhedron, concrete, can be cylindricality tetrahedron or cylindricality trihedral, as long as the maximum outside diameter of obturator and the internal diameter of housing 5 adapt, obturator can be fixed on housing 5 inside.
Described obturator is plastic body.Plastics have 1. light weight, and chemical stabilization can corrosion; 2. resistance to impact is good; 3. has preferably abrasion performance; 4. good insulating, thermal conductivity is low; The advantages such as 5. general mouldability, coloring are good, and processing cost is low, concrete plastic material can be wherein a kind of in polyethylene, polypropylene, polyphenylene sulfide, nylon and the polyvinyl fluoride.
Described volume core 6 lower ends are provided with heelpiece 7, and heelpiece 7 is a kind of insulation cushions, place the bottom of the housing 5 of steel material, and isolated volume core 6 contacts with the direct of bottom of the housing 5 of steel material.
Unaccounted feature adopts the explanation among the embodiment one in the present embodiment, no longer gives unnecessary details at this.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of this practicality protection range; although with reference to preferred embodiment the utility model is described in detail; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (9)
1. lithium battery structure, comprise housing, volume core and block, described volume core is positioned at described housing, described block is positioned at described housing upper end, it is characterized in that: described housing is provided with the slot rolling position, be provided with obturator between slot rolling position and the described volume core, obturator is provided be used to the perforate that allows positive pole ear pass.
2. a kind of lithium battery structure according to claim 1, it is characterized in that: described obturator is hollow structure, and the upper end is provided with upper plate, and the lower end is provided with lower plate, lower plate and described upper plate respectively are provided with described perforate.
3. a kind of lithium battery structure according to claim 1, it is characterized in that: the ratio of the aperture of described perforate and the maximum outside diameter of described obturator is 0.1-0.5:1.
4. a kind of lithium battery structure according to claim 1, it is characterized in that: the ratio of the maximum outside diameter of described obturator and the internal diameter of described housing is 0.95-1:1.
5. a kind of lithium battery structure according to claim 2, it is characterized in that: the spacing between the lower edge of the slot rolling position of the upper plate of described obturator and described housing is 0-0.8mm, described lower plate and described volume core butt.
6. a kind of lithium battery structure according to claim 1, it is characterized in that: described obturator is cylinder.
7. a kind of lithium battery structure according to claim 1, it is characterized in that: described obturator is polyhedron.
8. a kind of lithium battery structure according to claim 1, it is characterized in that: described obturator is plastic body.
9. a kind of lithium battery structure according to claim 1, it is characterized in that: described volume core lower end is provided with heelpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203115569U CN202695597U (en) | 2012-06-29 | 2012-06-29 | Lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203115569U CN202695597U (en) | 2012-06-29 | 2012-06-29 | Lithium battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695597U true CN202695597U (en) | 2013-01-23 |
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ID=47551166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203115569U Expired - Lifetime CN202695597U (en) | 2012-06-29 | 2012-06-29 | Lithium battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229428A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery cathode attachment structure and coiled cylindrical battery |
| CN107579273A (en) * | 2017-09-20 | 2018-01-12 | 东莞市沃泰通新能源有限公司 | A kind of assembly method of battery and its battery assembling device used |
-
2012
- 2012-06-29 CN CN2012203115569U patent/CN202695597U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229428A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery cathode attachment structure and coiled cylindrical battery |
| CN106229428B (en) * | 2016-09-30 | 2019-06-28 | 宁波超霸能源有限公司 | Battery cathode connection structure and coiled cylindrical battery |
| CN107579273A (en) * | 2017-09-20 | 2018-01-12 | 东莞市沃泰通新能源有限公司 | A kind of assembly method of battery and its battery assembling device used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170308 Address after: 523000 Guangdong Province, Dongguan City Shipai town to the West Village Songyuan 5 Road No. 1 Patentee after: DONGGUAN K-TECH NEW ENERGY CO.,LTD. Address before: Dongguan City, Guangdong Province town of the 523330 row of stone to the West Village Songyuan 5 Road No. 1 Guangdong Cade Energy Technology Co Ltd Patentee before: Guangdong K-TECH Energy Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |