CN211991383U - Laser welding positioning tool for battery cover plate and battery pole group lug - Google Patents
Laser welding positioning tool for battery cover plate and battery pole group lug Download PDFInfo
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- CN211991383U CN211991383U CN202020185681.4U CN202020185681U CN211991383U CN 211991383 U CN211991383 U CN 211991383U CN 202020185681 U CN202020185681 U CN 202020185681U CN 211991383 U CN211991383 U CN 211991383U
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- battery
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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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Abstract
The utility model discloses a laser welding positioning tool for a battery cover plate and a battery pole group lug, which comprises a spot welding positioning bottom plate (1); the top surface of the spot welding positioning bottom plate is provided with transversely distributed cover plate positioning seats (2); the top of the cover plate positioning seat is used for placing a battery cover plate (7) to be welded; a pole group positioning plate (5) is fixedly arranged on the front side and the rear side of the cover plate positioning seat respectively; the top of each pole group positioning plate is respectively used for placing a battery pole group (6) needing to be welded with a pole lug; an elbow clip supporting platform (9) is fixedly arranged on the left side and the right side of the cover plate positioning seat respectively; an elbow clip fixing block is fixedly arranged at the top of each elbow clip supporting platform; an elbow clip is arranged on the top of each elbow clip fixing block. The utility model discloses can carry out reliable connection location with battery apron and battery utmost point group utmost point ear, improve the welded connection intensity among the battery preparation welding process greatly to and welding assembly efficiency, improve the assembly quality of battery.
Description
Technical Field
The utility model relates to a battery technology field especially relates to power a battery cover plate and laser welding positioning tool of battery utmost point ear.
Background
At present, lithium ion batteries have the advantages of high specific energy, high cycle times, long storage time and the like, and are widely applied to portable electronic equipment such as mobile phones, digital video cameras and portable computers, and also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like.
With energy crisis and climate warming in the world, a brand new energy mode is urgently needed in the field of transportation, and lithium ion batteries attract extensive attention in the field of transportation due to the characteristics of environmental protection, high energy output and the like, and at present, related industries in the world develop extensive research on the application of the lithium ion batteries in the field. With the maturity and the increasing perfection of the electric automobile technology, the dream of the electric automobile and the hybrid electric automobile going into daily life becomes possible, and a huge commercial opportunity is created in the process of popularization of the electric automobile. The performance of the vehicle-mounted high-capacity power battery is good and bad, and the overall performance of the electric automobile is directly influenced. This puts higher demands on the vehicle-mounted power battery of the electric vehicle (for example, higher safety, more excellent performance, and lighter weight).
At present, the reliability and the safety of the battery are also a technical difficulty and a key point in the manufacturing process of a high-capacity power battery, particularly, the welding connectivity and the connection strength of a battery tab in the manufacturing and welding process are all the performances affecting the battery, wherein the consistency and the firmness of the welding position are direct reasons directly affecting the performances (including internal resistance and capacity) of the battery.
The welding requirement of a high-capacity battery on a battery pole group lug is stricter at present, and because the existing device can not reliably connect and position the battery pole group lug and a battery cover plate, the welding of the lug and the battery cover plate is not firm (namely, cold welding) easily after welding. If utmost point ear and the welding of battery apron connection piece are not firm (rosin joint promptly), because the battery capacity is high, when big multiplying power charge-discharge, can make the battery apron connection piece generate heat, can cause very big potential safety hazard for the battery, long-time the use still can lead to battery performance and cycle life decay scheduling problem, and internal resistance increases, influences the various parameter performance of lithium cell, finally leads to the unable continuation of battery to use, and when serious, still can arouse the security of battery even.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery apron and laser welding positioning tool of battery utmost point ear to the technical defect that prior art exists.
Therefore, the utility model provides a laser welding positioning tool for battery cover plate and battery pole group pole ear, which comprises a spot welding positioning bottom plate;
the top surface of the positioning bottom plate is spot-welded and provided with transversely distributed cover plate positioning seats;
the top of the cover plate positioning seat is used for placing a battery cover plate to be welded;
the front side and the rear side of the cover plate positioning seat are respectively and fixedly provided with a pole group positioning plate;
the top of each pole group positioning plate is respectively used for placing a battery pole group to be welded with a pole lug;
the left side and the right side of the cover plate positioning seat are respectively and fixedly provided with an elbow clamp supporting platform;
an elbow clip fixing block is fixedly arranged at the top of each elbow clip supporting platform;
an elbow clip is arranged on the top of each elbow clip fixing block.
Wherein, the left end and the right end of one side corresponding to the two battery pole groups are respectively provided with a tab.
When welding, the pole ear of the battery pole group is positioned on the top surface of the battery cover plate;
a spot welding gland which is transversely distributed is arranged right above the lug;
the left end and the right end of the spot welding gland are respectively provided with a reserved limiting hole;
the top surface of the elbow clamp supporting platform is provided with a limiting column at a position corresponding to the limiting hole of the spot welding gland;
the shape and the size of the limiting hole are correspondingly matched with those of the limiting column.
Wherein, the left end and the right end of the spot welding gland are also provided with a welding operation gap;
and the welding operation notch is arranged corresponding to the electrode lug of the battery electrode group.
Each elbow clamp faces to the bottom of one end of the adjacent limiting column and is provided with a pressure head which is vertically distributed;
and the pressure head is used for extruding the top surface of the spot welding gland placed below.
The top of each pole group positioning plate is provided with a pole group limiting groove with an upward opening and a downward opening;
the pole group limiting groove is used for placing a battery pole group to be welded with a pole lug;
the shape and size of the pole group limiting groove are correspondingly matched with those of the battery pole group.
By the above the technical scheme the utility model provides a it is visible, compare with prior art, the utility model provides a battery apron and battery utmost point group utmost point ear's laser welding positioning frock, its structural design science can carry out reliable connection location with battery apron and battery utmost point group utmost point ear, has improved the welding joint strength among the battery preparation welding process greatly to and welding assembly efficiency.
In view of uniformity, the fastness of weld position between battery apron and the utmost point ear of battery utmost point group, all direct influence battery performance (including internal resistance, capacity)'s direct reason itself, the utility model discloses can prolong the life of battery greatly, be favorable to simplifying the welding process of battery, reduce the manufacturing cost of battery, improve the assembly quality of battery, guarantee the long-time normal use of battery, effectively improve the market competitiveness of product, be favorable to using widely in production, have great production practice meaning.
Drawings
Fig. 1 is an exploded schematic view of a three-dimensional structure of a laser welding positioning tool for a battery cover plate and a battery pole group tab provided by the present invention;
in the figure: 1 is a spot welding positioning bottom plate, 2 is a cover plate positioning seat, 3 is an elbow clamp fixing block, 4 is an elbow clamp, and 5 is a pole group positioning plate;
6 is a battery pole group, 7 is a battery cover plate, and 8 is a spot welding gland; 9 is an elbow clip supporting table;
40 is a pressure head, 50 is a pole group limiting groove, 60 is a pole lug, 80 is a welding operation notch, and 81 is a limiting hole.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, the utility model provides a laser welding positioning tool for battery cover plate and battery pole group pole ear, comprising a spot welding positioning bottom plate 1;
the top surface of the spot welding positioning bottom plate 1 is provided with cover plate positioning seats 2 which are transversely distributed;
the top of the cover plate positioning seat 2 is used for placing a battery cover plate 7 to be welded;
the front side and the rear side of the cover plate positioning seat 2 are respectively and fixedly provided with a pole group positioning plate 5;
the top of each pole group positioning plate 5 is respectively used for placing a battery pole group 6 to be welded with a pole lug 60;
the left side and the right side of the cover plate positioning seat 2 are respectively and fixedly provided with an elbow clamp supporting platform 9;
an elbow clip fixing block 3 is fixedly arranged at the top of each elbow clip supporting platform 9;
on top of each elbow clip fixing block 3, an elbow clip 4 is provided.
The utility model discloses in, in the concrete realization, both ends about two corresponding one sides of battery utmost point group 6 have a utmost point ear 60 respectively.
In the present invention, in the specific implementation, during the welding, the tab 60 of the battery electrode group 6 is located on the top surface of the battery cover plate 7;
a spot welding gland 8 which is transversely distributed is arranged right above the lug 60;
the left end and the right end of the spot welding gland 8 are respectively provided with a reserved limiting hole 81;
a limiting column 90 is arranged on the top surface of the elbow clamp supporting table 9 at the position corresponding to the limiting hole 81 of the spot welding gland 8;
the shape and size of the limiting hole 81 are matched with the shape and size of the limiting column 90 correspondingly.
In the concrete implementation, the left end and the right end of the spot welding gland 8 are also provided with a welding operation notch 80;
and the welding operation notch 80 is arranged corresponding to the pole lug 60 of the battery pole group 6.
It should be noted that, through the setting of welding operation opening 80, the utility model discloses can carry out laser welding to the junction of the utmost point ear 60 of battery apron 7 and battery utmost point group 6, specifically can be through the soldered connection of current laser welding equipment, can carry out welding operation to the interconnect position of the utmost point ear 60 of battery apron 7 and battery utmost point group 6.
In the present invention, in a specific implementation, each elbow clip 4 faces to the bottom of one end of the adjacent limiting post 90, and is provided with a vertically distributed pressure head 40;
and a pressing head 40 for pressing the top surface of the spot welding gland 8 placed below. Therefore, the spot welding gland 8 can be easily, firmly and reliably limited.
In the present invention, in the specific implementation, the top of each pole group positioning plate 5 is provided with a pole group limiting groove 50 with an upward opening and a downward opening;
the pole group limiting groove 50 is used for placing the battery pole group 6 to be welded with the pole lugs 60;
the shape and size of the pole group limiting groove 50 are correspondingly matched with the shape and size of the battery pole group 6.
It should be noted that, the conventional welding method cannot fix the battery cover, and the conventional steel battery cover is susceptible to overheating and deformation due to the influence of an excessively high welding temperature, so that the problem of poor battery performance due to poor assembly sealability in the subsequent battery assembly process occurs. And adopt the utility model provides a laser welding positioning tool, owing to can fix battery apron 7 whole and utmost point ear 60 top plane of battery utmost point group 6 on the coplanar, prevented effectively that the thermal deformation problem that the welding is overheated to cause metal casing, still simplified assembly process simultaneously, improved the production efficiency and the product percent of pass of battery.
According to the technical scheme provided by the utility model, to the utility model discloses, overcome the welding frock shortcoming that exists among the transmission lithium ion power battery, it can improve large capacity power battery welding assembly's efficiency greatly, guarantees large capacity lithium ion battery's welding firmness and intensity, guarantees lithium ion battery safe handling to prolong the life of battery greatly, be favorable to simplifying the welding process of battery, reduce the manufacturing cost of battery, improve the assembly quality of battery, guarantee the long-time normal use of battery.
To sum up, compare with prior art, the utility model provides a pair of battery cover plate and battery utmost point ear's laser welding positioning fixture, its structural design science can carry out reliable connection location with battery cover plate and battery utmost point ear, has improved the welded connection intensity among the battery preparation welding process greatly to and welding assembly efficiency.
In view of uniformity, the fastness of weld position between battery apron and the utmost point ear of battery utmost point group, all direct influence battery performance (including internal resistance, capacity)'s direct reason itself, the utility model discloses can prolong the life of battery greatly, be favorable to simplifying the welding process of battery, reduce the manufacturing cost of battery, improve the assembly quality of battery, guarantee the long-time normal use of battery, effectively improve the market competitiveness of product, be favorable to using widely in production, have great production practice meaning.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A laser welding positioning tool for a battery cover plate and a battery pole group lug is characterized by comprising a spot welding positioning bottom plate (1);
the top surface of the spot welding positioning bottom plate (1) is provided with cover plate positioning seats (2) which are transversely distributed;
the top of the cover plate positioning seat (2) is used for placing a battery cover plate (7) to be welded;
the front side and the rear side of the cover plate positioning seat (2) are respectively and fixedly provided with a pole group positioning plate (5);
the top of each pole group positioning plate (5) is respectively used for placing a battery pole group (6) needing to be welded with a tab (60);
the left side and the right side of the cover plate positioning seat (2) are respectively and fixedly provided with an elbow clip supporting platform (9);
the top of each elbow clip supporting platform (9) is fixedly provided with an elbow clip fixing block (3);
an elbow clip (4) is arranged at the top of each elbow clip fixing block (3).
2. The laser welding positioning tool according to claim 1, wherein the two battery pole groups (6) have a tab (60) at each of the left and right ends.
3. The laser welding positioning tool according to claim 1, wherein during welding, the tab (60) of the battery pole group (6) is positioned on the top surface of the battery cover plate (7);
a spot welding gland (8) which is transversely distributed is arranged right above the lug (60);
the left end and the right end of the spot welding gland (8) are respectively provided with a reserved limiting hole (81);
a limiting column (90) is arranged on the top surface of the elbow clamp supporting table (9) at a position corresponding to a limiting hole (81) of the spot welding gland (8);
the shape and the size of the limiting hole (81) are correspondingly matched with those of the limiting column (90).
4. The laser welding positioning tool according to claim 3, wherein the spot welding gland (8) is provided with a welding operation notch (80) at the left end and the right end;
and the welding operation notch (80) is arranged corresponding to the pole lug (60) of the battery pole group (6).
5. The laser welding positioning tool according to claim 3, wherein each elbow clamp (4) faces to the bottom of one end of the adjacent limiting column (90) and is provided with a vertically distributed pressure head (40);
and the pressure head (40) is used for pressing the top surface of the spot welding gland (8) placed below.
6. The laser welding positioning tool according to claim 1, wherein the top of each pole group positioning plate (5) is provided with a pole group limiting groove (50) with an upward opening and a downward opening;
the pole group limiting groove (50) is used for placing a battery pole group (6) needing to be welded with a pole lug (60);
the shape and the size of the pole group limiting groove (50) are correspondingly matched with those of the battery pole group (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020185681.4U CN211991383U (en) | 2020-02-19 | 2020-02-19 | Laser welding positioning tool for battery cover plate and battery pole group lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020185681.4U CN211991383U (en) | 2020-02-19 | 2020-02-19 | Laser welding positioning tool for battery cover plate and battery pole group lug |
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| CN211991383U true CN211991383U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020185681.4U Active CN211991383U (en) | 2020-02-19 | 2020-02-19 | Laser welding positioning tool for battery cover plate and battery pole group lug |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185662A (en) * | 2020-02-19 | 2020-05-22 | 力神动力电池***有限公司 | Laser welding positioning tool for battery cover plate and battery pole group lug |
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2020
- 2020-02-19 CN CN202020185681.4U patent/CN211991383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185662A (en) * | 2020-02-19 | 2020-05-22 | 力神动力电池***有限公司 | Laser welding positioning tool for battery cover plate and battery pole group lug |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220120 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Binhai New Area Binhai high tech Industrial Development Zone Huayuan science and Technology Park (outer ring) 38 Haitai South Road Patentee before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. |