CN209401776U - Battery winding needle - Google Patents
Battery winding needle Download PDFInfo
- Publication number
- CN209401776U CN209401776U CN201822060255.3U CN201822060255U CN209401776U CN 209401776 U CN209401776 U CN 209401776U CN 201822060255 U CN201822060255 U CN 201822060255U CN 209401776 U CN209401776 U CN 209401776U
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- CN
- China
- Prior art keywords
- battery winding
- needle
- winding needle
- groove
- pole piece
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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
-
- 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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Abstract
The utility model provides a kind of battery winding needle, including volume needle main body and connecting shaft, the needle main bodys of volume two are individually fixed in the both ends of connecting shaft, volume needle main body have with the bottom surface that connecting shaft is connected, be connected with bottom surface and parallel with the plane of rotation direction composition of needle main body is rolled up opposite two sides and be connected with bottom surface and two opposite interareas between two sides, two interareas open up several grooves, and groove is connected to opposite two sides.Battery winding needle will be after the completion of pole piece and membrane winding, because groove not with the pole piece on battery winding needle surface or membrane contacts without generating frictional force, during pulling out battery winding needle, the interaction force of battery winding needle and pole piece or diaphragm is reduced, avoids pole piece picking, pole piece and diaphragm deflection.
Description
Technical field
The utility model relates to battery producing device technical field more particularly to a kind of battery winding needles.
Background technique
Currently, the battery core of lithium ion battery can be divided into winding-structure and lamination, the wherein life of the battery core of winding-structure
Production mode has many advantages, such as that high production efficiency, burr risk are small, thus the battery core of lithium ion battery largely uses winding-structure.
In the up- coiler of production winding-structure battery core, by the continuous rotation of battery winding needle, positive plate, negative electrode tab and diaphragm are fixed
On battery winding needle device, battery core is made by the winding of battery winding needle.However, up- coiler is pulling out electricity after the completion of winding
Pond roll up needle during, because the frictional force between battery winding needle and pole piece or diaphragm is excessive, be easy that pole piece is made to lose powder, and make pole piece and
Diaphragm deflection causes manufactured battery core quality decline and then influences the performance of battery.Therefore, be badly in need of to the structure of battery winding needle into
Row improves the defects of to overcome existing pole piece picking, pole piece and diaphragm deflection during pulling out battery winding needle.
Utility model content
The purpose of this utility model is to provide one kind overcome during pulling out battery winding needle existing pole piece picking,
The battery winding needle of the defects of pole piece and diaphragm deflection.
To achieve the above object, the utility model provides a kind of battery winding needle, including rolls up needle main body and connecting shaft, and volume two
Needle main body is individually fixed in the both ends of connecting shaft, volume needle main body there is the bottom surface being connected with connecting shaft, be connected with bottom surface and with volume
The parallel opposite two sides of the plane that the rotation direction of needle main body is constituted and it is connected with bottom surface and the phase between two sides
Pair two interareas, two interareas open up several grooves, and groove is connected to opposite two sides.Preferably, connecting shaft is located at volume two
On the pivot center of needle main body.
Preferably, the angle that the side wall of groove and interarea are constituted is greater than 90 °.
Preferably, the angle that the side wall of groove and interarea are constituted is 120 °.
Preferably, the side wall of groove and the junction of interarea are in arcuation.
Preferably, the width of several grooves reduces with the increase far from connecting shaft distance, the depth of groove is 1-
3mm。
Preferably, volume needle main body is in triangular prism shape.
Compared with prior art, two interareas that the battery winding needle of the utility model is in the form of a column the volume needle main body of structure open up company
Leading to the groove of opposite two sides, the battery winding needle is by after the completion of pole piece and membrane winding, during pulling out battery winding needle, because
Groove, without generating frictional force, reduces battery winding needle and pole piece or diaphragm not with the pole piece on battery winding needle surface or membrane contacts
Interaction force, avoid pole piece picking, pole piece and diaphragm deflection.
Detailed description of the invention
Fig. 1 is the perspective view of an embodiment of the utility model battery winding needle；
Fig. 2 is the main view of the battery winding needle of Fig. 1；
Fig. 3 is the top view of the battery winding needle of Fig. 1；
Fig. 4 is the enlarged drawing of A pointed location in Fig. 2.
Specific embodiment
In order to which the technology contents, construction feature of the utility model is described in detail, below in conjunction with embodiment and cooperate attached drawing
It is described further.
Fig. 1-3 is please referred to, battery winding needle 100 provided by the utility model includes volume needle main body 1 and connecting shaft 2, the needles of volume two
Main body 1 is individually fixed in the both ends of connecting shaft 2, and volume needle main body 1 has the bottom surface 11 being connected with connecting shaft 2, is connected with bottom surface 11
And opposite two sides 15 parallel with the plane that the rotation direction of volume needle main body 1 is constituted and it is connected with bottom surface 11 and between two sides
Two opposite interareas 12 between face 15, two interareas 12 open up several grooves 13, and groove 13 is connected to opposite two sides 15.
The interarea 12 that battery winding needle 100 of the present utility model is in the form of a column the volume needle main body 1 of structure, which opens up, is connected to opposite two sides
15 groove 13, battery winding needle 100 is by after the completion of pole piece and membrane winding, during pulling out battery winding needle 100, because of groove 13
Not with the pole piece on 100 surface of battery winding needle or membrane contacts without generating frictional force, reduce battery winding needle 100 and pole piece or every
The interaction force of film avoids pole piece picking, pole piece and diaphragm deflection.Specifically, volume needle main body 1 can be in triangular prism shape,
Interarea 12 is two, and the quantity of groove 13 can be according to circumstances arranged, and the depth of groove 13 is 1-3mm, as set in the present embodiment
Set 3 grooves 13, and the width of groove 13 reduces with the increase far from 2 distance of connecting shaft, battery winding needle 100 by pole piece and
After the completion of membrane winding, when pressing from both sides battery core due to up- coiler, battery winding needle 100 contact close to the position of bottom surface 11 with battery core it is most tight,
Corresponding frictional force is maximum, when 13 width of groove close to connecting shaft 2 is big, advantageously reduces the frictional force in middle position,
Conducive to pulling out for battery winding needle 100.
Fig. 1-2 is please referred to, connecting shaft 2 can be in rectangular parallelepiped structure, and connecting shaft 2 is located at the rotation axis of the needle main body 1 of volume two
On line, specifically, the volume needle main body 1 at 2 both ends of connecting shaft is symmetrical set centered on connecting shaft 2.
Referring to figure 4., the angle α that the side wall of groove 13 and interarea 12 are constituted is greater than 90 °, the side wall and interarea 12 of groove 13
The angle α of composition can depend on the circumstances, and in the present embodiment, the angle α that the side wall and interarea 12 of groove 13 are constituted is 120 °, groove
The junction of 13 side wall and interarea 12 is in arcuation 14, this be conducive to avoid battery winding needle 100 in arcuation 14 junction with
The stress of pole piece or diaphragm is concentrated, and can mitigate the extruding of groove 13 Yu pole piece well, reduce battery winding needle 100 and pole piece or
The interaction force of diaphragm avoids pole piece picking, pole piece and diaphragm deflection.
Above disclosed is only the preferred embodiments of the utility model, and the power of the utility model cannot be limited with this
Sharp range, therefore equivalent variations made according to the claim of the utility model belong to the range that the utility model is covered.
Claims (8)
1. a kind of battery winding needle, which is characterized in that be individually fixed in institute including volume needle main body and connecting shaft, the two volume needle main bodys
State the both ends of connecting shaft, the volume needle main body there is the bottom surface being connected with the connecting shaft, be connected with the bottom surface and with it is described
The parallel opposite two sides of the plane that the rotation direction of volume needle main body is constituted and it is connected with the bottom surface and between two sides
Two opposite interareas between face, two interareas open up several grooves, and the groove is connected to the side of opposite two.
2. battery winding needle according to claim 1, which is characterized in that the connecting shaft is located at turning for the two volume needle main bodys
In shaft line.
3. battery winding needle according to claim 1, which is characterized in that the folder that the side wall of the groove and the interarea are constituted
Angle is greater than 90 °.
4. battery winding needle according to claim 3, which is characterized in that the folder that the side wall of the groove and the interarea are constituted
Angle is 120 °.
5. battery winding needle according to claim 3, which is characterized in that the junction of the side wall of the groove and the interarea
In arcuation.
6. battery winding needle according to claim 1, which is characterized in that the width of several grooves is with far from the company
The increase of spindle distance and reduce.
7. battery winding needle according to claim 1, which is characterized in that the depth of the groove is 1-3mm.
8. battery winding needle according to claim 1, which is characterized in that the volume needle main body is in triangular prism shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060255.3U CN209401776U (en) | 2018-12-07 | 2018-12-07 | Battery winding needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060255.3U CN209401776U (en) | 2018-12-07 | 2018-12-07 | Battery winding needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401776U true CN209401776U (en) | 2019-09-17 |
Family
ID=67894107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822060255.3U Active CN209401776U (en) | 2018-12-07 | 2018-12-07 | Battery winding needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707912A (en) * | 2020-06-12 | 2020-09-25 | 阜阳腾冠电力科技有限公司 | Insulation detection device for power distribution cabinet |
-
2018
- 2018-12-07 CN CN201822060255.3U patent/CN209401776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707912A (en) * | 2020-06-12 | 2020-09-25 | 阜阳腾冠电力科技有限公司 | Insulation detection device for power distribution cabinet |
| CN111707912B (en) * | 2020-06-12 | 2023-08-22 | 阜阳腾冠电力科技有限公司 | Insulation detection device for switch board |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220209 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 210000 249 Lantian Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province 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. |