CN202178344U - Cylindrical battery winding pin - Google Patents
Cylindrical battery winding pin Download PDFInfo
- Publication number
- CN202178344U CN202178344U CN2011203345782U CN201120334578U CN202178344U CN 202178344 U CN202178344 U CN 202178344U CN 2011203345782 U CN2011203345782 U CN 2011203345782U CN 201120334578 U CN201120334578 U CN 201120334578U CN 202178344 U CN202178344 U CN 202178344U
- Authority
- CN
- China
- Prior art keywords
- circular arc
- battery
- line segment
- winding pin
- cylindrical
- 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
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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
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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
- 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
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- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The utility model belongs to the field of production components of lithium ion batteries and discloses a cylindrical battery winding pin which comprises a cylindrical winding pin body and a battery cell limit body, wherein the winding pin body is inserted in the battery cell limit body. The winding pin body is a similar cylinder formed by combining two symmetrical arc column single bodies, and chamfer planes are arranged on the symmetrical axial right-angle edges of the arc column single bodies, thereby being capable of effectively preventing a pole piece from sliding in a rolling process of the winding pin and reducing corrugation of the pole piece. The design can increase a chamfer when the two planes transit. Damage degree of a diaphragm can be reduced in the process of extraction of the winding pin after winding is finished, and safety of a battery cell is increased.
Description
Technical field
The utility model relates to a kind of production parts of cylindrical coiled lithium ion battery, relates in particular to a kind of cylindrical battery volume pin.
Background technology
Present cylindrical roll pin is that two semicircle arc column monomers are combined into the volume aciculiform shape that a cylinder forms; Such volume pin causes head to slide when reeling easily, causes the inconvenience of reeling, and forms fold at the pole piece head easily; Cause electric core bad; And when coiling finishes to extract out the volume pin,, short-circuit risks is arranged, cause a hidden trouble for the fail safe of battery easily at place, semicircle angle scuffing barrier film.
Summary of the invention
To above-mentioned technological deficiency, the utility model technical problem to be solved is to solve pole piece head formation fold when reeling, and causes the bad problem of electric core.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of cylindrical battery volume pin; Comprise cylindrical roll needle body and battery battery core limit body; Wherein roll up needle body and be inserted in the battery battery core limit body, described volume needle body is that two symmetrical circular arc post monomers are combined into an approximate circle cylinder, and the symmetry axis of said circular arc post monomer is provided with fillet surface to rectangular edge.
Further: in above-mentioned cylindrical battery volume pin, the outline line in said circular arc post monomer cross section is the occluding contour that orthodrome line segment and rectangle line segment are formed.The cross section contour of said fillet surface was that plating angle circular arc line segment adds straightway and added plating angle circular arc line segment again and form.
Perhaps: the cross section contour of said fillet surface was a plating angle circular arc line segment.
Compared with prior art, in above-mentioned cylindrical battery volume pin, the symmetry axis of said circular arc post monomer is provided with fillet surface to rectangular edge.The cross section contour of said fillet surface was that plating angle circular arc line segment adds straightway and added plating angle circular arc line segment again and form.Perhaps: the cross section contour of said fillet surface was a plating angle circular arc line segment.In the process that the volume pin rolls, can effectively avoid pole piece to slide like this; Reduce the wrinkling situation of pole piece; And the chamfering when like this design can increase the two sides transition, in the process that finishes to extract out the volume pin of reeling, also can reduce the degree of injury of barrier film, increased the fail safe of electric core.
Description of drawings
Fig. 1 is the structure diagram of the utility model volume pin cross section;
Fig. 2 is first kind of implementation enlarged drawing of cross section contour of the utility model fillet surface;
Fig. 3 is second kind of implementation enlarged drawing of cross section contour of the utility model fillet surface;
Wherein: 1 circular arc post monomer, 2 fillet surfaces, 11 orthodrome line segments, 12 rectangle line segments, 21 are crossed plating angle circular arc line segment, 22 straightways.
Embodiment
For the ease of those skilled in the art's understanding, will combine embodiment and accompanying drawing that the utility model structural principle is done further to describe in detail below.
Like Fig. 1-3; A kind of cylindrical battery volume pin; Comprise cylindrical roll needle body and battery battery core limit body; Wherein roll up needle body and be inserted in the battery battery core limit body, described volume needle body is that two symmetrical circular arc post monomers 1 are combined into an approximate circle cylinder, and the symmetry axis of said circular arc post monomer 1 is provided with fillet surface 2 to rectangular edge.The outline line in said circular arc post monomer 1 cross section is the occluding contour of orthodrome line segment 11 and rectangle line segment 12 compositions.The cross section contour of said fillet surface was that plating angle circular arc line segment 21 adds straightway 22 and added plating angle circular arc line segment 21 again and form.
Perhaps: the cross section contour of said fillet surface was a plating angle circular arc line segment 21.
In the process that the volume pin rolls, can effectively avoid pole piece to slide like this; Reduce the wrinkling situation of pole piece; And the chamfering when like this design can increase the two sides transition, in the process that finishes to extract out the volume pin of reeling, also can reduce the degree of injury of barrier film, increased the fail safe of electric core.
The above-mentioned preferred implementation that is merely the utility model, in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model design, any conspicuous replacement all should fall within the protection range of the utility model.
Claims (4)
1. a cylindrical battery is rolled up pin; Comprise cylindrical roll needle body and battery battery core limit body; Wherein rolling up needle body is inserted in the battery battery core limit body; It is characterized in that: described volume needle body is that two symmetrical circular arc post monomers (1) are combined into an approximate circle cylinder, and the symmetry axis of said circular arc post monomer (1) is provided with fillet surface (2) to rectangular edge.
2. cylindrical battery volume pin according to claim 1, it is characterized in that: the outline line in said circular arc post monomer (1) cross section is the occluding contour that orthodrome line segment (11) and rectangle line segment (12) are formed.
3. cylindrical battery according to claim 2 volume pin is characterized in that: the cross section contour of said fillet surface was that plating angle circular arc line segment (21) adds straightway (22) and added plating angle circular arc line segment (21) again and form.
4. cylindrical battery volume pin according to claim 2, it is characterized in that: the cross section contour of said fillet surface was a plating angle circular arc line segment (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203345782U CN202178344U (en) | 2011-09-07 | 2011-09-07 | Cylindrical battery winding pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203345782U CN202178344U (en) | 2011-09-07 | 2011-09-07 | Cylindrical battery winding pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178344U true CN202178344U (en) | 2012-03-28 |
Family
ID=45868211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203345782U Expired - Fee Related CN202178344U (en) | 2011-09-07 | 2011-09-07 | Cylindrical battery winding pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178344U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489947A (en) * | 2015-12-23 | 2016-04-13 | 浙江兜兰智能设备股份有限公司 | Novel winding-type lead storage battery and production process thereof |
| CN106571489A (en) * | 2015-10-08 | 2017-04-19 | 深圳市比克动力电池有限公司 | Method and winding apparatus for improving separation membrane pulling-out during battery winding |
| CN107093769A (en) * | 2017-03-31 | 2017-08-25 | 深圳吉阳智能科技有限公司 | A kind of winding mechanism |
| CN109952680A (en) * | 2017-06-27 | 2019-06-28 | 株式会社Lg化学 | Lithium secondary battery including cylindrical jellyroll |
| CN110600784A (en) * | 2019-08-29 | 2019-12-20 | 青岛奥博智能科技有限公司 | Winding and unwinding die and winding method for special-shaped amorphous core |
-
2011
- 2011-09-07 CN CN2011203345782U patent/CN202178344U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571489A (en) * | 2015-10-08 | 2017-04-19 | 深圳市比克动力电池有限公司 | Method and winding apparatus for improving separation membrane pulling-out during battery winding |
| CN105489947A (en) * | 2015-12-23 | 2016-04-13 | 浙江兜兰智能设备股份有限公司 | Novel winding-type lead storage battery and production process thereof |
| CN105489947B (en) * | 2015-12-23 | 2018-06-22 | 浙江兜兰智能设备股份有限公司 | A kind of novel coiling formula lead accumulator and its production technology |
| CN107093769A (en) * | 2017-03-31 | 2017-08-25 | 深圳吉阳智能科技有限公司 | A kind of winding mechanism |
| CN109952680A (en) * | 2017-06-27 | 2019-06-28 | 株式会社Lg化学 | Lithium secondary battery including cylindrical jellyroll |
| CN109952680B (en) * | 2017-06-27 | 2021-11-05 | 株式会社Lg化学 | Lithium secondary battery including cylindrical jelly roll |
| CN110600784A (en) * | 2019-08-29 | 2019-12-20 | 青岛奥博智能科技有限公司 | Winding and unwinding die and winding method for special-shaped amorphous core |
| CN110600784B (en) * | 2019-08-29 | 2022-07-26 | 青岛奥博智能科技有限公司 | Winding and unwinding die for special-shaped amorphous battery cell and winding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUIZHOU EVE ENERGY CO., LTD. Free format text: FORMER OWNER: HUIZHOU DESAY POLYPOWER BATTERY CO., LTD. Effective date: 20130802 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130802 Address after: Seven road 516006 in Guangdong province Huizhou City Zhongkai high tech Zone Huifeng No. 36 Patentee after: Huizhou EVE Energy Co., Ltd. Address before: 516006 Guangdong province Huizhou City Zhongkai high tech Zone No. 6 District 7 block Patentee before: Huizhou Desay Polypower Battery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20200907 |