CN210926189U - Assembly structure of electric core - Google Patents
Assembly structure of electric core Download PDFInfo
- Publication number
- CN210926189U CN210926189U CN201921674775.1U CN201921674775U CN210926189U CN 210926189 U CN210926189 U CN 210926189U CN 201921674775 U CN201921674775 U CN 201921674775U CN 210926189 U CN210926189 U CN 210926189U
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- angle
- extension
- screening glass
- cell
- utmost point
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- 238000012216 screening Methods 0.000 claims abstract description 28
- 239000011521 glass Substances 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 21
- 210000004027 cell Anatomy 0.000 claims description 17
- 210000005056 cell body Anatomy 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 239000005340 laminated glass Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 14
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of lithium ion battery, concretely relates to assembly structure of electricity core, including electric core body, utmost point ear and screening glass, utmost point ear with electric core body electric connection, the screening glass laminate in on the face of weld of utmost point ear, the screening glass orientation the one end extension of electric core body is provided with the extension, the extension is the arc structure, the extension is equipped with prevents slow-witted R angle, the one end that prevents slow-witted R angle is connected to the tip of screening glass. Compared with the prior art, the utility model discloses can effectively play the effect of preventing slow-witted, prevent that the screening glass from taking place to weld at the welded in-process and turning over, improve the security of electric core production, in addition, can also reduce utmost point ear and screening glass wipe the probability of bumping, improved the excellent rate of production greatly.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery, concretely relates to assembly structure of electric core.
Background
Lithium ion batteries are widely used in consumer electronics products and products requiring power and energy storage due to their advantages of high energy density, high operating voltage, long cycle life, no memory, etc. In recent years, with the development of new energy automobile industry, the market of power batteries is expanding, and the production efficiency of power batteries and the safety performance of batteries are also receiving attention.
As the naked electric core of power battery core assembly, its utmost point ear is very fragile. In the assembling process of naked electric core and top cap, need carry out ultrasonic bonding with utmost point ear and connection piece on the naked electric core, and welded in-process, utmost point ear often breaks because the high-frequency oscillation of bonding tool, for this reason, set up the screening glass that is the same with utmost point ear material usually on utmost point ear in the trade, bear the vibrations of bonding tool through the screening glass and with this vibrations retransmission give utmost point ear through the screening glass again to slow down the injury that utmost point ear received, play the effect of protection utmost point ear. However, the current protection plates are all planar sheet structures, edges of the protection plates are provided with edges and corners, particularly, the edges face one end of a bare cell, and in the process of ultrasonic welding, the protection plates are easy to rub and touch with a tab due to vibration, so that the tab is broken.
In view of the above, there is a need to provide an improved solution that can improve the protection effect of the tab and also play a fool-proof role.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the assembling structure of the battery cell can effectively play the role of fool proofing, prevents the protection plate from welding reversely in the welding process, improves the safety of battery cell production, can also reduce the probability of wiping and colliding the lug and the protection plate, and greatly improves the excellent rate of production.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an assembly structure of electricity core, includes electric core body, utmost point ear and screening glass, utmost point ear with electric core body electric connection, the screening glass laminating in on the face of weld of utmost point ear, the screening glass orientation the one end extension of electric core body is provided with the extension, the extension is the arc structure, the extension is equipped with prevents slow-witted R angle, the one end that prevents slow-witted R angle is connected to the tip of screening glass. The foolproof R angle is arranged, so that on one hand, the foolproof effect can be achieved, the phenomenon that the protective sheet is welded reversely in the production process is effectively avoided, and the production safety of the battery cell is greatly improved; on the other hand, the device is convenient to take and place, and is beneficial to improving the production efficiency; in addition, the extension part is arranged to be of an arc-shaped structure, so that the damage to the lug caused by mutual rubbing and collision of the protection plate and the lug during welding can be effectively avoided, and the safety and the reliability of the production of the battery cell are further improved.
As right the utility model discloses in the assembly structure's of electricity core improvement, prevent that the other end orientation at slow-witted R angle is close to the direction of electricity core body extends. Because the extension is the arc structure, prevent slow-witted R angle and extend towards the direction that is close to electric core body and can form slick and sly big cambered surface, consequently, can reduce the probability that screening glass and utmost point ear rubbed and bump when welding utmost point ear, improve the security of electric core.
As right the utility model discloses in the improvement of the assembly structure of electric core, the extension still include with prevent slow-witted R angle of connection, the one end of bent angle with prevent slow-witted R angle of connection, the other end is towards keeping away from the direction of electric core body extends. The additional arrangement of the bend angle is beneficial to enhancing the positioning effect of the protection sheet, and is convenient for subsequent welding of the connecting sheet.
As right the utility model discloses in the assembly structure's of electricity core improvement, the bent angle is connected to through straight transition portion prevent slow-witted R angle.
As an improvement to the assembly structure of the electric core in the present invention, the straight transition portion is perpendicular to the protection sheet.
As right the utility model discloses in the assembly structure's of electricity core improvement, the bent angle is connected to through slick and sly transition portion prevent slow-witted R angle.
As right the utility model discloses in the assembly structure's of electricity core improvement, slick and sly transition portion is semicircle or curved cambered surface for the cross section.
Because the bent angle is probably different with the angle of preventing slow-witted R angle, add transition portion, can make bent angle and prevent slow-witted R angle realize the connection of transition, for convenient processing, can set up transition portion to straight or slick and sly structure, can carry out reasonable adaptation according to the production demand of reality.
As right the utility model discloses in the improvement of the assembly structure of electric core, the screening glass still includes first arc portion and second arc portion, first arc portion with second arc portion sets up respectively the both sides of screening glass, first arc portion with second arc portion respectively with extension circular arc transitional coupling. Add first arc portion and second arc portion, can make the both sides of screening glass form slick and sly cambered surface, when welding utmost point ear, can not take place the scraping with utmost point ear, further improved the security and the reliability of electric core.
As an improvement to the assembly structure of the electric core in the present invention, the protection sheet is a single-layer metal sheet structure. The protection sheet is arranged to be a single-layer metal sheet structure, so that the weight of the protection sheet can be effectively reduced, and the production cost is reduced.
As right the utility model discloses in the improvement of the assembly structure of electric core, the thickness of screening glass is 0.03mm ~2 mm. The protection sheet cannot be too thin or too thick, and if the protection sheet is too thin, the protection sheet is easily damaged in the process of welding the tab, and the protection function cannot be effectively realized; if the protective sheet is too thick, the use of materials is increased, and the production cost is increased.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1) the utility model has the advantages that the foolproof angle is arranged on the protective sheet, on one hand, the foolproof effect can be realized, the phenomenon that the protective sheet is welded reversely in the production process is effectively avoided, and the safety of the production of the battery cell is greatly improved; on the other hand, the device is convenient to take and place, and is beneficial to improving the production efficiency;
2) the utility model discloses set the extension to the arc structure, can effectively avoid screening glass and utmost point ear to wipe each other when the welding and bump and cause the damage of utmost point ear, further improve the security and the reliability of electric core production.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided to explain the invention and not to constitute an undue limitation on the invention. In the drawings:
fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;
1, an electric core body; 2-pole ear; 3-protecting the sheet; 4-an extension; 31-a first arc; 32-a second arc; 41-foolproof R corner; 42-bend angle; 43-a straight transition; 44-smooth transition.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
Example 1
As shown in fig. 1, an assembly structure of electric core, including cell body 1, utmost point ear 2 and screening glass 3, utmost point ear 2 and cell body 1 electric connection, screening glass 3 laminates on the face of weld of utmost point ear 2, and screening glass 3 extends towards the one end of cell body 1 and is provided with extension 4, and extension 4 is the arc structure, and extension 4 is equipped with prevents slow-witted R angle 41, and the one end of preventing slow-witted R angle 41 is connected to the tip of screening glass 3. The utility model has the advantages that the foolproof R angle 41 is arranged, the foolproof effect is realized on the protection sheet 3, the phenomenon that the protection sheet 3 is easy to be welded reversely in the production process is effectively avoided, and the safety of the production of the battery cell is greatly improved; the device is convenient to take and place, and the production efficiency is improved; in addition, extension 4 sets to the arc structure, can effectively avoid protecting sheet 3 and utmost point ear 2 to rub each other when the welding and bump and cause utmost point ear 2's damage, further improves the security and the reliability of electricity core production.
Preferably, the other end of the fool-proof R-corner 41 extends toward the direction close to the cell body 1. Because extension 4 is the arc structure, prevent slow-witted R angle 41 and extend towards the direction that is close to electric core body 1 and can form slick and sly big cambered surface, consequently can reduce the probability that screening glass 3 and utmost point ear 2 rubbed and bumped when welding utmost point ear 2, improve the security of electric core.
Preferably, the protection sheet 3 is a single-layer metal sheet structure, and the thickness of the protection sheet 3 is 0.03 mm-2 mm. The protection sheet 3 is arranged into a single-layer metal sheet structure, so that the weight of the protection sheet 3 can be effectively reduced, and the production cost can be reduced; the protection sheet 3 cannot be too thin or too thick, and if the protection sheet 3 is too thin, the tab 2 is easily damaged in the process of welding, so that the protection function cannot be effectively realized; if the protective sheet 3 is too thick, the use of materials is increased, increasing the production cost.
Example 2
As shown in fig. 2, different from embodiment 1, the extension portion 4 in this embodiment further includes a corner 42 connected to the fool-proof R corner 41, one end of the corner 42 is connected to the fool-proof R corner 41, and the other end extends in a direction away from the cell body 1, wherein the corner 42 is connected to the fool-proof R corner 41 through a straight transition portion 43, and the straight transition portion 43 is perpendicular to the protection sheet 3.
The other structures are the same as those of embodiment 1, and are not described again here.
In order to avoid the unsmooth connection between the bend angle 42 and the foolproof R angle 41 due to different angles, a straight transition part 43 is arranged between the bend angle 42 and the foolproof R angle 41, so that the transition connection effect can be achieved; the straight transition portion 43 may be formed by an upward flanging of the end of the fool-proof R-corner 41 connected to the bend 42.
Example 3
As shown in fig. 3, unlike embodiment 1, the extension 4 in this embodiment also includes a bend 42, and the bend 42 is connected to the fool-proof R-corner 41 through a smooth transition portion 44, and the smooth transition portion 44 is a curved surface having a semicircular or arc-shaped cross section.
The other structures are the same as those of embodiment 1, and are not described again here.
In this embodiment, the round and smooth transition portion 44 realizes round and smooth transitional connection between the bend angle 42 and the fool-proof R angle 41, so that the protection sheet 3 is formed into a structure with a large fillet towards one end of the cell body 1, thereby effectively avoiding the damage of the protection sheet 3 to the electrode lug 2 during welding, and greatly improving the production safety and reliability of the cell.
Example 4
As shown in fig. 4, unlike embodiment 1, the protective sheet 3 in this embodiment further includes a first arc portion 31 and a second arc portion 32, the first arc portion 31 and the second arc portion 32 are respectively provided on both sides of the protective sheet 3, and the first arc portion 31 and the second arc portion 32 are respectively arc-transitionally connected to the extension portion 4.
The other structures are the same as those of embodiment 1, and are not described again here.
In this embodiment, add first arc portion 31 and second arc portion 32, can make 3 one ends of protecting sheet outwards, the slick and sly cambered surface is formed to remaining both sides, when welding utmost point ear 2, can reduce the probability that protecting sheet 3 and utmost point ear 2 rubbed and bumped, has further improved the production security and the reliability of electric core.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides an assembly structure of electricity core, includes electric core body (1), utmost point ear (2) and screening glass (3), utmost point ear (2) with electric core body (1) electric connection, screening glass (3) laminate in on the face of weld of utmost point ear (2), its characterized in that: screening glass (3) orientation the one end extension of electricity core body (1) is provided with extension (4), extension (4) are the arc structure, extension (4) are equipped with prevents slow-witted R angle (41), the one end of preventing slow-witted R angle (41) is connected to the tip of screening glass (3).
2. The assembling structure of a cell of claim 1, characterized in that: the other end of the fool-proof R angle (41) extends towards the direction close to the battery cell body (1).
3. The assembling structure of a cell of claim 1, characterized in that: the extension part (4) further comprises a bend angle (42) connected with the fool-proof R angle (41), one end of the bend angle (42) is connected with the fool-proof R angle (41), and the other end of the bend angle extends in the direction away from the battery cell body (1).
4. The assembling structure of a cell of claim 3, characterized in that: the bend (42) is connected to the foolproof R-corner (41) by a straight transition (43).
5. The assembling structure of a cell of claim 4, characterized in that: the straight transition part (43) is perpendicular to the protection sheet (3).
6. The assembling structure of a cell of claim 3, characterized in that: the bend angle (42) is connected to the foolproof R-angle (41) by a rounded transition (44).
7. The assembling structure of a cell of claim 6, characterized in that: the smooth transition part (44) is an arc surface with a semicircular or arc-shaped cross section.
8. The assembling structure of a cell of claim 1, characterized in that: protection sheet (3) still include first arc portion (31) and second arc portion (32), first arc portion (31) with second arc portion (32) set up respectively the both sides of protection sheet (3), first arc portion (31) with second arc portion (32) respectively with extension (4) circular arc transitional coupling.
9. The assembling structure of a cell of claim 1, characterized in that: the protection sheet (3) is of a single-layer metal sheet structure.
10. The assembling structure of a cell of claim 9, characterized in that: the thickness of the protection sheet (3) is 0.03 mm-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921674775.1U CN210926189U (en) | 2019-10-09 | 2019-10-09 | Assembly structure of electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921674775.1U CN210926189U (en) | 2019-10-09 | 2019-10-09 | Assembly structure of electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210926189U true CN210926189U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921674775.1U Active CN210926189U (en) | 2019-10-09 | 2019-10-09 | Assembly structure of electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210926189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151730A (en) * | 2020-09-25 | 2020-12-29 | 飞毛腿(福建)电子有限公司 | Laser welding assembly structure of mobile power supply and assembly process thereof |
-
2019
- 2019-10-09 CN CN201921674775.1U patent/CN210926189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151730A (en) * | 2020-09-25 | 2020-12-29 | 飞毛腿(福建)电子有限公司 | Laser welding assembly structure of mobile power supply and assembly process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 211100 Lantian Road 249, 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. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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. Country or region after: China Address before: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |