CN207705343U - A kind of electric core winding structure for being convenient for pulling out needle - Google Patents
A kind of electric core winding structure for being convenient for pulling out needle Download PDFInfo
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- CN207705343U CN207705343U CN201721903660.6U CN201721903660U CN207705343U CN 207705343 U CN207705343 U CN 207705343U CN 201721903660 U CN201721903660 U CN 201721903660U CN 207705343 U CN207705343 U CN 207705343U
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- Prior art keywords
- needle
- anode
- core
- pulling out
- volume
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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
Abstract
The utility model is related to a kind of convenient for pulling out the electric core winding structure of needle, volume needle including core and for winding core, core stacks gradually back wall coiling needle by anode strip, isolation film and cathode sheets and winds, anode strip is provided with anode lug, cathode sheets are provided with cathode tab, and anode lug and cathode tab are arranged at the lower section of volume needle.Compared with the prior art, the utility model is by changing pole-piece pole-ear structure design, in this way, when winding terminates to carry out pulling out needle, due to the gravity of first lap pole piece, in addition being all located at the lug below volume needle, so that core entirety center of gravity is fallen in the lower section of core, and the isolation film above needle and pole piece are rolled up because arch bridge effect acts on, therefore first lap isolation film can't be caused to cave in and be adhered on volume needle, and make core structure in relatively stable state, greatly reduce the frictional force from isolation film when pulling out needle, it is bad so as to effectively solve the problems, such as to pull out needle, and then improve product qualification rate and production efficiency.
Description
Technical field
The utility model belongs to battery production manufacturing technology field more particularly to a kind of power is convenient for pulling out the electric core winding of needle
Structure.
Background technology
With the enhancing of the development and people's environmental consciousness of modern society, more and more equipment select using lithium battery as
Power supply, such as mobile phone, laptop, electric tool and electric vehicle, this is provided extensively for the application of lithium battery with development
Wealthy space.Wherein, lithium battery used in electric tool and electric vehicle etc. is commonly referred to as power battery.
Wherein, existing power battery core is all relatively thick, and Winding Layer is more, and needle relative difficulty is pulled out from core.
It is in the industry at present to be surface-treated to volume needle to this Improving Measurements one, second is that increasing volume stylus printer wax the smoothness of volume wire surface.
But the equal existing defects of two methods, the cost that the former is surface-treated is higher, and can not thoroughly eliminate the electrostatic of first lap isolation film
It influences, and it has been greatly to waste to produce in enormous quantities there are 0.5~1% defective products；The wax that the latter beats be animals and plants or
The grease of mineral when winding on isolation film easy to stick, and is soluble in the organic solvent in electrolyte, electrical property to whole battery core and
Security performance has very important influence.
In view of this, be improved further it is necessory to the winding-structure to battery core, with solve to pull out needle it is bad caused by
Product rejection problem improves product qualification rate and production efficiency.
Utility model content
The purpose of this utility model is that：In view of the deficiencies of the prior art, a kind of electric core winding for being convenient for pulling out needle is provided
Structure, with solve the problems, such as to pull out needle it is bad caused by product rejection, improve product qualification rate and production efficiency.
To achieve the goals above, the utility model uses following solution：
It is a kind of convenient for pulling out the electric core winding structure of needle, including core and the volume needle for winding core, the core by
Anode strip, isolation film and cathode sheets stack gradually back wall coiling needle and wind, and the anode strip is provided with anode lug, described
Cathode sheets are provided with cathode tab, and the anode lug and the cathode tab are arranged at the lower section of the volume needle.
As described in the utility model convenient for pulling out the preferred embodiment of the electric core winding structure of needle, the anode lug is arranged
In the starting circle of anode strip winding, the starting circle wound in the cathode sheets is arranged in the cathode tab.Wherein, existing
There are longer film area (no lugs) for some anode and cathode slice initiating terminals, and in winding, first lap is pure membrane areas, the second circle
For the pole piece with lug；And the utility model eliminates the pure membrane areas of first lap, and anode lug and cathode tab are respectively provided with
It is enclosed in the starting of pole piece coiling and positioned at the lower section of volume needle, the in this way gravity due to first lap pole piece so that core is whole
Center of gravity is fallen in the lower section of core, and rolls up the isolation film above needle and pole piece because arch bridge effect acts on, therefore can't cause the
One circle isolation film caves in and is adhered on volume needle.
As the preferred embodiment of the electric core winding structure described in the utility model for being convenient for pulling out needle, the anode lug and institute
It states anode strip to be an integral molding structure, the cathode tab is an integral molding structure with the cathode sheets.In addition, anode lug and
Cathode tab can also be fixed on by the way of welding on anode and cathode slice.
As the preferred embodiment of the electric core winding structure described in the utility model for being convenient for pulling out needle, the number of the anode lug
Amount is set as multiple, and multiple anode lugs become spacing setting along anode strip length direction.As Winding Layer increases, core
Thickness can change, by the way that anode lug is become spacing setting, then after the completion of can ensureing anode strip winding, and multiple anodes
Lug can align overlapping.
As the preferred embodiment of the electric core winding structure described in the utility model for being convenient for pulling out needle, the number of the cathode tab
Amount is set as multiple, and multiple cathode tabs become spacing setting along cathode sheets length direction.As Winding Layer increases, core
Thickness can change, by the way that cathode tab is become spacing setting, then after the completion of can ensureing cathode sheets winding, and multiple cathodes
Lug can align overlapping.
As described in the utility model convenient for pulling out the preferred embodiment of the electric core winding structure of needle, the volume needle includes first
Needle and volume Two needle are rolled up, the first volume needle and the volume Two needle are oppositely arranged, and are combined into ellipticity.Using combine volume
Needle is more conducive to pull out needle operation convenient for the flexible of volume needle.
The beneficial effects of the utility model are：A kind of electric core winding structure for being convenient for pulling out needle of the utility model, including volume
Core and volume needle for winding core, the core stack gradually back wall coiling needle by anode strip, isolation film and cathode sheets and roll up
Around into the anode strip is provided with anode lug, and the cathode sheets are provided with cathode tab, the anode lug and described the moon
Pole lug is arranged at the lower section of the volume needle.Compared with the prior art, the utility model is set by changing pole-piece pole-ear structure
Meter, in this way, when winding terminates to carry out pulling out needle, due to the gravity of first lap pole piece, in addition being all located at the pole below volume needle
Ear so that core entirety center of gravity is fallen in the lower section of core, and roll up the isolation film above needle and pole piece because arch bridge effect act on, because
This can't cause first lap isolation film to cave in and be adhered on volume needle, and make core structure in relatively stable state, subtract significantly
Frictional force from isolation film when pulling out needle less, it is bad so as to effectively solve the problems, such as to pull out needle, and then improve product qualification rate
And production efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1- core；11- anode strips；111- anode lugs；12- cathode sheets；121- cathode tabs；13- isolation films；
2- volumes of needle；21- first volume needles；22- volume Two needles.
Specific implementation mode
To keep the technical solution of the utility model and advantage clearer, below in conjunction with specific implementation mode and specification
Attached drawing is described in further detail the utility model and advantage, but the embodiment of the utility model is not limited to
This.
As shown in Figure 1, a kind of electric core winding structure for being convenient for pulling out needle, including core 1 and the volume needle for winding core 1
2, core 1 stacks gradually back wall coiling needle 2 by anode strip 11, isolation film 13 and cathode sheets 12 and winds, and anode strip 11 is arranged
There are anode lug 111, cathode sheets 12 to be provided with cathode tab 121；Wherein, anode lug 111, which is arranged, winds in anode strip 11
Starting circle, the starting circle wound in cathode sheets 12 is arranged in cathode tab 121, and anode lug 111 and cathode tab 121 are respectively provided with
In the lower section of volume needle 2.
Wherein, there are longer film area (no lugs) for existing anode and cathode slice initiating terminal, and in winding, first lap is
Pure membrane areas, the second circle are the pole piece with lug；And the utility model eliminates the pure membrane areas of first lap, by anode lug
111 and cathode tab 121 be arranged at pole piece coiling starting enclose and positioned at volume needle 2 lower section, in this way due to first lap pole piece
Gravity so that the whole center of gravity of core 1 is fallen in the lower section of core 1, and roll up 2 top of needle isolation film 13 and pole piece because of arch
Bridge effect acts on, therefore first lap isolation film 13 can't be caused to cave in and be adhered on volume needle 2.
According to the present utility model convenient in an embodiment of the electric core winding structure for pulling out needle, anode lug 111 and sun
Pole piece 11 is an integral molding structure, and cathode tab 121 is an integral molding structure with cathode sheets 12.In addition, anode lug 111 and the moon
Pole lug 121 can also be fixed on by the way of welding on anode and cathode slice.
According to the present utility model convenient in an embodiment of the electric core winding structure for pulling out needle, the number of anode lug 111
Amount is set as multiple, and multiple anode lugs 111 become spacing setting along 11 length direction of anode strip；The quantity of cathode tab 121 is set
Be set to it is multiple, multiple cathode tabs 121 along 12 length direction of cathode sheets become spacing setting.As Winding Layer increases, core 1 is thick
Degree can change, by the way that negative and positive lug is become spacing setting, then after the completion of can ensureing anode and cathode slice winding, and multiple negative and positive
Lug can align overlapping.
According to the present utility model convenient in an embodiment of the electric core winding structure for pulling out needle, volume needle 2 includes the first volume
Needle 212 and volume Two needle 222, first volume needle 212 and volume Two needle 222 are oppositely arranged, and are combined into ellipticity.Using combine volume
Needle 2 is more conducive to pull out needle operation convenient for the flexible of volume needle 2.
Compared with the prior art, the utility model is by changing pole-piece pole-ear structure design, in this way, winding terminates to be pulled out
When needle operates, due to the gravity of first lap pole piece, in addition being all located at the lug of 2 lower section of volume needle so that the whole weight of core 1
The heart is fallen in the lower section of core 1, and rolls up the isolation film 13 above needle 2 and pole piece because arch bridge effect acts on, therefore can't be caused
First lap isolation film 13 caves in and is adhered on volume needle 2, and makes 1 structure of core in relatively stable state, greatly reduces when pulling out needle
Frictional force from isolation film 13, it is bad so as to effectively solve the problems, such as to pull out needle, and then improve product qualification rate and production
Efficiency.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is changed.Therefore, the utility model is not limited to above-mentioned specific implementation mode, every this field skill
It is new that art personnel any conspicuously improved, replacement or modification made on the basis of the utility model belongs to this practicality
The protection domain of type.In addition, although some specific terms, these terms has been used to be intended merely to facilitate in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (6)
1. a kind of convenient for pulling out the electric core winding structure of needle, including core and the volume needle for winding core, the core is by sun
Pole piece, isolation film and cathode sheets stack gradually back wall coiling needle and wind, and the anode strip is provided with anode lug, described the moon
Pole piece is provided with cathode tab, it is characterised in that：The anode lug and the cathode tab are arranged under the volume needle
Side.
2. the electric core winding structure according to claim 1 for being convenient for pulling out needle, it is characterised in that：The anode lug setting exists
The starting circle wound in the cathode sheets is arranged in the starting circle of the anode strip winding, the cathode tab.
3. the electric core winding structure according to claim 1 for being convenient for pulling out needle, it is characterised in that：The anode lug with it is described
Anode strip is an integral molding structure, and the cathode tab is an integral molding structure with the cathode sheets.
4. the electric core winding structure according to claim 1 for being convenient for pulling out needle, it is characterised in that：The quantity of the anode lug
It is set as multiple, multiple anode lugs become spacing setting along anode strip length direction.
5. the electric core winding structure according to claim 1 for being convenient for pulling out needle, it is characterised in that：The quantity of the cathode tab
It is set as multiple, multiple cathode tabs become spacing setting along cathode sheets length direction.
6. the electric core winding structure according to claim 1 for being convenient for pulling out needle, it is characterised in that：The volume needle includes the first volume
Needle and volume Two needle, the first volume needle and the volume Two needle are oppositely arranged, and are combined into ellipticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903660.6U CN207705343U (en) | 2017-12-29 | 2017-12-29 | A kind of electric core winding structure for being convenient for pulling out needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903660.6U CN207705343U (en) | 2017-12-29 | 2017-12-29 | A kind of electric core winding structure for being convenient for pulling out needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705343U true CN207705343U (en) | 2018-08-07 |
Family
ID=63030387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721903660.6U Active CN207705343U (en) | 2017-12-29 | 2017-12-29 | A kind of electric core winding structure for being convenient for pulling out needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952206A (en) * | 2021-01-04 | 2021-06-11 | 李曼琳 | Lamination lithium battery core and lamination equipment |
-
2017
- 2017-12-29 CN CN201721903660.6U patent/CN207705343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952206A (en) * | 2021-01-04 | 2021-06-11 | 李曼琳 | Lamination lithium battery core and lamination equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220117 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 211100 69, Feitian Road, Jiangning Airport Economic Development Zone, Nanjing, Jiangsu Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |