CN113161655A - Fixing and connecting structure and mounting method for lithium battery cover plate assembly - Google Patents
Fixing and connecting structure and mounting method for lithium battery cover plate assembly Download PDFInfo
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- CN113161655A CN113161655A CN202110526725.4A CN202110526725A CN113161655A CN 113161655 A CN113161655 A CN 113161655A CN 202110526725 A CN202110526725 A CN 202110526725A CN 113161655 A CN113161655 A CN 113161655A
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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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Abstract
The fixed connection structure of the lithium battery cover plate assembly and the installation method of the fixed connection structure comprise a cover plate body and an insulating base plate, wherein the insulating base plate is arranged on one side of the cover plate body, connecting column stamping counter bores are uniformly stamped in the edge part above the cover plate body, and the back parts of the connecting column stamping counter bores are riveting columns. Through set up the crimping hole on insulating backing plate and punch the riveting post on the apron body, can adopt the riveted mode to carry out riveting fixed with insulating cover plate and apron body, can be fine when having avoided current adoption laser welding fixed, vibrations too frequently and lead to the problem that rupture membrane shatters inefficacy easily, adopt simple punching machine just can accomplish the connection of lapping body and insulating backing plate fixed simultaneously, need use the laser-beam welding machine when can solving current insulating cover plate fixed, the cost is higher, and operation process is comparatively complicated, extravagant labour's problem.
Description
Technical Field
The invention belongs to the technical field of lithium batteries, and particularly relates to a fixed connection structure and an installation method of a lithium battery cover plate assembly.
Background
General secondary battery, in order to satisfy the electric insulation of utmost point post and top cap piece and casing, therefore can set up numerous insulating assemblies, the sealing performance of apron not only can be influenced to the fixed connection structure of battery apron, can influence manufacturing cost with simultaneously, but among the current lithium battery cover plate subassembly fixed connection structure, when insulating backing plate is fixed with the apron, mostly adopt laser welding's mode to fix, there is welding vibrations and leads to explosion-proof piece to become invalid on the one hand, on the other hand welding process operation degree of difficulty is big, equipment cost is high, the whole manufacturing cost of lithium cell has been increased.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, provides a fixed connection structure of a lithium battery cover plate assembly and an installation method, and adopts the following basic concept:
the utility model provides a lithium battery cover plate subassembly fixed connection structure, includes apron body and insulating backing plate, apron body one side is provided with insulating backing plate, the even punching press in edge part above the apron body has spliced pole punching press counter bore, spliced pole punching press counter bore back is the riveting post, lie in on the insulating backing plate on the apron body riveting post position has seted up the crimping hole, insulating backing plate with the apron body passes through the crimping hole with the riveting post riveting.
Preferably, the middle part of the cover plate body is provided with an explosion-proof piece mounting hole, the bottom of the explosion-proof piece mounting hole is welded with an explosion-proof film, and the top of the explosion-proof piece mounting hole is provided with an explosion-proof film surface sticker.
Preferably, the cover plate body is provided with an anode pole mounting hole at one side of the explosion-proof sheet mounting hole, and the cover plate body is provided with a cathode pole mounting hole at the other side of the explosion-proof sheet mounting hole.
Preferably, the inside of the positive pole mounting hole is welded and fixed with a positive pole, and the inside of the negative pole mounting hole is welded with a negative pole.
Preferably, anodal utmost point post and negative terminal post comprises utmost point post body, injection molding, sealing member and top cap connecting piece, the injection molding on the anodal utmost point post is black, the injection molding on the negative terminal post is the khaki.
Preferably, the insulating backing plate is located the crimping hole periphery is the punching press hole site, be located on the insulating backing plate explosion-proof hole has evenly been seted up to explosion-proof piece mounting hole site, be located on the insulating backing plate anodal utmost point post mounting hole with utmost point post dodges the hole has been seted up to negative pole utmost point post mounting hole site.
Preferably, the positive pole post and the pole component on the negative pole post are made of aluminum alloy, and the cover plate body is manufactured by adopting an integrated punch forming process.
Preferably, when installing this lithium battery cover plate subassembly, earlier with the rupture membrane passes through the laser welding machine welding and is in on the rupture disk mounting hole, then paste the rupture membrane face subsides, then, will anodal utmost point post with top cap connecting piece on the negative terminal post welds respectively through the laser welding machine welding anodal utmost point post mounting hole with inside the negative terminal post mounting hole, the completion is right anodal post, negative pole post and rupture membrane's installation on the apron body, then, will crimping hole on the insulating backing plate with riveting post on the apron body is connected, puts it on the press, through with riveting post with crimping hole joins in marriage and the riveting, will on the insulating backing plate fixed mounting apron body, the fixed mounting to lithium battery cover plate subassembly is realized.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
According to the invention, the insulating cover plate and the cover plate body can be riveted and fixed in a riveting mode by arranging the crimping holes on the insulating base plate and punching the riveting columns on the cover plate body, so that the problem that the explosion-proof membrane is easy to break and lose efficacy due to too frequent vibration when the existing insulating cover plate is fixed by laser welding can be well avoided, and meanwhile, the cover plate body and the insulating base plate can be connected and fixed by adopting a simple punching machine, so that the problems that a laser welding machine is needed when the existing insulating cover plate is fixed, the cost is higher, the operation process is more complex and the labor force is wasted can be solved. .
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is an exploded rear view of the present invention;
FIG. 4 is an inverted exploded view of the present invention;
FIG. 5 is a partial cross-sectional view of the cover plate body and the insulating spacer at the crimp hole portion in the present invention.
In the figure: 1-cover plate body; 2-positive pole column; 3-cathode pole column; 4-insulating backing plate; 5-explosion-proof membrane; 6-sticking an explosion-proof membrane surface; 7-punching hole sites; 8-explosion-proof hole; 9-pole avoiding holes; 10-a positive pole mounting hole; 11-explosion-proof sheet mounting holes; 12-a cathode post mounting hole; 13-crimping holes; 14-connecting column punching counter bores; 15-riveting columns.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, a lithium battery cover plate assembly fixed connection structure comprises a cover plate body 1 and an insulating base plate 4, wherein the insulating base plate 4 is arranged on one side of the cover plate body 1, a connecting column stamping counter bore 14 is uniformly stamped on the edge part above the cover plate body 1, the back of the connecting column stamping counter bore 14 is a riveting column 15, a crimping hole 13 is formed in the position, located on the cover plate body 1, of the riveting column 15 on the insulating base plate 4, and the insulating base plate 4 is riveted with the cover plate body 1 through the crimping hole 13 and the riveting column 15.
In this embodiment, explosion-proof piece mounting hole 11 has been seted up at apron body 1 middle part, and the welding of explosion-proof membrane 11 bottom of explosion-proof piece mounting hole has rupture membrane 5, and 11 tops of explosion-proof piece mounting hole are provided with rupture membrane face subsides 6, can realize the installation to rupture membrane 5, and rupture membrane 5 can play the effect of relief valve.
In this embodiment, the cover plate body 1 is provided with the positive electrode post mounting hole 10 on one side of the explosion-proof sheet mounting hole 11, the cover plate body 1 is provided with the negative electrode post mounting hole 12 on the other side of the explosion-proof sheet mounting hole 11, the positive electrode post 2 is welded and fixed inside the positive electrode post mounting hole 10, the negative electrode post 3 is welded inside the negative electrode post mounting hole 12, and the positive electrode post 2 and the negative electrode post 3 can be conveniently mounted and fixed.
In this embodiment, anodal utmost point post 2 and negative terminal 3 constitute by utmost point post body, injection molding, sealing member and top cap connecting piece, and the injection molding on anodal utmost point post 2 is black, and the injection molding on negative terminal 3 is the khaki, can conveniently be to the positive and negative identification on the lithium battery apron subassembly.
In this embodiment, lie in crimping hole 13 periphery on insulating backing plate 4 and be punching press hole site 7, lie in explosion-proof piece mounting hole 11 position on insulating backing plate 4 and evenly seted up explosion-proof hole 8, lie in anodal utmost point post mounting hole 10 and the 12 positions of negative pole utmost point post mounting hole on insulating backing plate 4 and seted up utmost point post dodge hole 9.
In this embodiment, the utmost point post subassembly on anodal utmost point post 2 and the negative pole utmost point post 3 is the aluminum alloy material, and apron body 1 adopts integrative stamping forming technology to make, can improve the electric conductivity, reduction in production cost simultaneously.
A method for installing a fixed connection structure of a lithium battery cover plate component comprises the steps of firstly welding an explosion-proof membrane 5 on an explosion-proof sheet installation hole 11 through a laser welding machine, then pasting an explosion-proof membrane surface paste 6, then respectively welding top cover connecting pieces on a positive electrode pole 2 and a negative electrode pole 3 inside a positive electrode pole installation hole 10 and a negative electrode pole installation hole 12 through welding of a laser welding machine, completing installation of the positive electrode pole, the negative electrode pole and the explosion-proof membrane 5 on a cover plate body 1, then connecting a crimping hole 13 on an insulating base plate 4 with a riveting column 15 on the cover plate body 1, placing the riveting column on a press, fixedly installing the insulating base plate 4 on the cover plate body 1 through matching and riveting with the crimping hole 13, realizing fixed installation of the lithium battery cover plate component, forming the crimping hole 13 on the insulating base plate 4 and punching the riveting column 15 on the cover plate body 1, can adopt riveted mode to carry out riveting fixed with insulating cover plate and apron body 1, can be fine avoid when current adoption laser welding is fixed, shake too frequently and lead to the problem that rupture membrane 5 shatters inefficacy easily, adopt simple punching machine just can accomplish the connection of apron body 1 and insulating backing plate 4 simultaneously and fix, need use laser-beam welding machine when can solving current insulating cover plate fixed, the cost is higher, and operation process is comparatively complicated, extravagant labour's problem.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a lithium battery cover plate subassembly fixed connection structure, includes apron body (1) and insulating backing plate (4), its characterized in that, apron body (1) one side is provided with insulating backing plate (4), even punching press in apron body (1) top edge part position has spliced pole punching press counter bore (14), spliced pole punching press counter bore (14) back is riveting post (15), lie in on insulating backing plate (4) apron body (1) riveting hole (13) have been seted up at riveting post (15) position, insulating backing plate (4) with apron body (1) passes through crimping hole (13) with riveting post (15) riveting.
2. The fixing and connecting structure for the lithium battery cover plate component according to claim 1, wherein an explosion-proof sheet mounting hole (11) is formed in the middle of the cover plate body (1), an explosion-proof film (5) is welded at the bottom of the explosion-proof sheet mounting hole (11), and an explosion-proof film surface sticker (6) is arranged at the top of the explosion-proof sheet mounting hole (11).
3. The lithium battery cover plate component fixed connection structure of claim 1, wherein the cover plate body (1) is provided with a positive pole mounting hole (10) at one side of the explosion-proof sheet mounting hole (11), and the cover plate body (1) is provided with a negative pole mounting hole (12) at the other side of the explosion-proof sheet mounting hole (11).
4. The lithium battery cover plate component fixing and connecting structure according to claim 1, wherein the positive pole post (2) is welded and fixed inside the positive pole post mounting hole (10), and the negative pole post (3) is welded inside the negative pole post mounting hole (12).
5. The lithium battery cover plate component fixed connection structure of claim 1, wherein the positive electrode post (2) and the negative electrode post (3) are composed of a post body, an injection molding piece, a sealing piece and a top cover connecting piece, the injection molding piece on the positive electrode post (2) is black, and the injection molding piece on the negative electrode post (3) is khaki.
6. The lithium battery cover plate component fixed connection structure of claim 1, characterized in that, lie in on insulating backing plate (4) crimping hole (13) periphery is punching press hole site (7), lie in on insulating backing plate (4) explosion-proof piece mounting hole (11) position has evenly seted up explosion-proof hole (8), lie in on insulating backing plate (4) anodal utmost point post mounting hole (10) with utmost point post dodge hole (9) have been seted up at negative terminal post mounting hole (12) position.
7. The lithium battery cover plate component fixed connection structure of claim 1, wherein the positive electrode pole (2) and the pole component on the negative electrode pole (3) are made of aluminum alloy, and the cover plate body (1) is manufactured by an integrated punch forming process.
8. A method for installing a fixed connection structure of a lithium battery cover plate assembly is applied to the fixed connection structure of the lithium battery cover plate assembly in any one of claims 1 to 6, and is characterized in that: when the lithium battery cover plate component is installed, firstly, the explosion-proof membrane (5) is welded on the explosion-proof sheet mounting hole (11) through a laser welding machine, then the explosion-proof membrane surface paste (6) is pasted, then, the anode pole (2) and the top cover connecting piece on the cathode pole (3) are respectively welded inside the anode pole mounting hole (10) and the cathode pole mounting hole (12) through the laser welding machine, the installation of the anode pole, the cathode pole and the explosion-proof membrane (5) on the cover plate body (1) is completed, then, the crimping hole (13) on the insulating base plate (4) is connected with the crimping column (15) on the cover plate body (1) and is placed on a press machine, and the insulating base plate (4) is fixedly installed on the cover plate body (1) through the matching and riveting of the crimping column (15) and the crimping hole (13), the fixed installation of the lithium battery cover plate component is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526725.4A CN113161655A (en) | 2021-05-14 | 2021-05-14 | Fixing and connecting structure and mounting method for lithium battery cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526725.4A CN113161655A (en) | 2021-05-14 | 2021-05-14 | Fixing and connecting structure and mounting method for lithium battery cover plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161655A true CN113161655A (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110526725.4A Pending CN113161655A (en) | 2021-05-14 | 2021-05-14 | Fixing and connecting structure and mounting method for lithium battery cover plate assembly |
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| CN (1) | CN113161655A (en) |
Citations (10)
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|---|---|---|---|---|
| JPH08132156A (en) * | 1994-11-07 | 1996-05-28 | Hokuto:Kk | Metallic laminated plate and its manufacture |
| KR20030066243A (en) * | 2002-02-05 | 2003-08-09 | 삼성에스디아이 주식회사 | Cap Assembly and Secondary Battery Therewith |
| CN2788933Y (en) * | 2005-05-20 | 2006-06-21 | 深圳市比克电池有限公司 | Lithium ion battery covering plate riveting die |
| CN101176908A (en) * | 2006-11-06 | 2008-05-14 | 比亚迪股份有限公司 | Riveting method as well as method for coupling electrode pole and cover plate of lithium ion battery |
| CN202094198U (en) * | 2011-03-25 | 2011-12-28 | 捷锐思(天津)新能源科技有限公司 | Anode explosion-proof device for lithium ion power battery |
| CN203690358U (en) * | 2013-10-14 | 2014-07-02 | 合肥国轩高科动力能源股份公司 | Fastening straight-through type lithium battery cover plate |
| CN105609667A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Secondary battery |
| CN111384318A (en) * | 2020-04-29 | 2020-07-07 | 苏州三众新能源科技有限公司 | Cover plate structure of lithium battery |
| CN211480092U (en) * | 2020-02-29 | 2020-09-11 | 武汉富航精密工业有限公司 | Novel lithium battery cover plate structure |
| CN211629141U (en) * | 2019-11-12 | 2020-10-02 | 浙江锦泰电子有限公司 | Battery cover plate structure |
-
2021
- 2021-05-14 CN CN202110526725.4A patent/CN113161655A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132156A (en) * | 1994-11-07 | 1996-05-28 | Hokuto:Kk | Metallic laminated plate and its manufacture |
| KR20030066243A (en) * | 2002-02-05 | 2003-08-09 | 삼성에스디아이 주식회사 | Cap Assembly and Secondary Battery Therewith |
| CN2788933Y (en) * | 2005-05-20 | 2006-06-21 | 深圳市比克电池有限公司 | Lithium ion battery covering plate riveting die |
| CN101176908A (en) * | 2006-11-06 | 2008-05-14 | 比亚迪股份有限公司 | Riveting method as well as method for coupling electrode pole and cover plate of lithium ion battery |
| CN202094198U (en) * | 2011-03-25 | 2011-12-28 | 捷锐思(天津)新能源科技有限公司 | Anode explosion-proof device for lithium ion power battery |
| CN203690358U (en) * | 2013-10-14 | 2014-07-02 | 合肥国轩高科动力能源股份公司 | Fastening straight-through type lithium battery cover plate |
| CN105609667A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Secondary battery |
| CN211629141U (en) * | 2019-11-12 | 2020-10-02 | 浙江锦泰电子有限公司 | Battery cover plate structure |
| CN211480092U (en) * | 2020-02-29 | 2020-09-11 | 武汉富航精密工业有限公司 | Novel lithium battery cover plate structure |
| CN111384318A (en) * | 2020-04-29 | 2020-07-07 | 苏州三众新能源科技有限公司 | Cover plate structure of lithium battery |
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