CN111151955B - Welding positioning tool for power battery cover plate connecting sheet and pole group lug - Google Patents
Welding positioning tool for power battery cover plate connecting sheet and pole group lug Download PDFInfo
- Publication number
- CN111151955B CN111151955B CN202010078570.8A CN202010078570A CN111151955B CN 111151955 B CN111151955 B CN 111151955B CN 202010078570 A CN202010078570 A CN 202010078570A CN 111151955 B CN111151955 B CN 111151955B
- Authority
- CN
- China
- Prior art keywords
- battery
- positioning
- pole group
- welding
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 75
- 230000004308 accommodation Effects 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Abstract
The invention discloses a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug, which comprises an integral supporting plate; the front end and the rear end of the bottom of the integral supporting plate are respectively and vertically connected with two positioning struts which are distributed at intervals; the lower ends of the four positioning struts are fixedly connected with the four corners of the positioning bottom plate; the top of the integral supporting plate is provided with pole group fixing and positioning plates distributed in a surrounding manner; the pole group fixing and positioning plate is provided with a battery pole group accommodating cavity; the right end of the battery pole group accommodating cavity is clamped with the lower end of the battery pole group; the left side of the battery pole group is provided with two battery pole lugs; a welding seat is arranged below the battery lug; a battery cover plate connecting sheet to be welded is arranged at the top of the welding seat; the right top surface of battery cover plate connection piece contacts with the bottom surface of battery tab. The invention can ensure the welding firmness of the cover plate connecting sheet of the high-capacity lithium ion battery and the electrode lugs of the battery electrode group, improve the welding assembly efficiency of the high-capacity power battery and ensure the quality of the battery.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug.
Background
At present, lithium ion batteries have the advantages of high specific energy, multiple recycling times, long storage time and the like, are widely applied to portable electronic equipment such as mobile phones, digital cameras and portable computers, and are widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like.
Along with the worldwide energy crisis and climate warming, a brand new energy mode is urgently needed in the transportation field, and the lithium ion battery is widely focused in the transportation field due to the characteristics of green and environment protection, high energy output and the like, so that the application of the lithium ion battery in the field is widely studied in the related industry in the world at present. With the maturity and the increasing perfection of the electric automobile technology, the electric automobile and the hybrid electric automobile are brought into the dream of daily life, and huge business opportunities are inoculated in the popularization process of the electric automobile. The performance of the vehicle-mounted high-capacity power battery directly influences the overall performance of the electric automobile. This puts higher demands on the vehicle-mounted power battery of the electric vehicle (for example, higher safety, better performance and lighter weight).
Currently, the reliability and the safety of the battery are also a technical difficulty and an important point in the manufacturing process of the high-capacity power battery, and particularly the welding connectivity and the connection strength of the battery tab in the manufacturing process of the battery are all direct reasons for influencing the performance of the battery, wherein the consistency and the firmness of the welding position directly influence the performance (including the internal resistance and the capacity) of the battery.
The current high-capacity battery has stricter requirements on welding of the electrode lugs of the battery electrode group, if the welding of the electrode lugs and the battery cover plate connecting sheet is not firm (namely cold joint), the battery cover plate connecting sheet can generate heat when the battery is charged and discharged at a high multiplying power due to high battery capacity, so that great potential safety hazards can be caused for the battery, the battery can be used for a long time, the problems of battery performance, cycle life attenuation and the like can be caused, the internal resistance is increased, the performance of various parameters of the lithium battery is influenced, the battery can not be continuously used finally, and the safety of the battery can be caused seriously.
Therefore, there is an urgent need to develop a device that can ensure the welding firmness between the cover plate connecting piece of the high-capacity lithium ion battery and the tab of the battery pole group, so as to greatly improve the welding assembly efficiency of the high-capacity power battery, ensure the quality of the battery, ensure the safe use of the lithium ion battery, and prolong the service life of the battery.
Disclosure of Invention
The invention aims at solving the technical defects existing in the prior art and provides a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug.
Therefore, the invention provides a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug, which comprises an integral supporting plate;
The front end and the rear end of the bottom of the integral supporting plate are respectively and vertically connected with two positioning struts which are distributed at intervals;
The lower ends of the four positioning struts are fixedly connected with the four corners of the rectangular positioning bottom plate;
the top of the integral supporting plate is provided with pole group fixing and positioning plates distributed in a surrounding manner;
The electrode group fixing and positioning plate is provided with battery electrode group accommodating cavities which are transversely distributed;
the right end of the battery pole group accommodating cavity is clamped with the lower end of the battery pole group;
The left side of the battery pole group is provided with two battery pole lugs which are distributed at intervals in the front-back direction;
a welding seat is arranged below the battery lug;
A battery cover plate connecting sheet to be welded is arranged at the top of the welding seat;
the right top surface of battery cover plate connection piece contacts with the bottom surface of battery tab.
Wherein, the battery cover plate connecting sheet is close to one end edge of the pole group fixing and positioning plate, and is buckled with a cover plate connecting sheet fixing block which is transversely distributed;
the cover plate is connected with the fixing block, and is fixedly connected with a reserved screw hole at the top of the welding seat through a screw.
Wherein, the whole supporting plate is provided with a strip-shaped groove at a position corresponding to the lower part of the battery pole group accommodating cavity;
The bottom of the welding seat is fixedly connected with a welding seat positioning block;
the upper part of the welding seat positioning block penetrates through the strip-shaped groove and then is connected with the bottom of the welding seat;
the lower part of the welding seat positioning block is fixedly connected with a screw hole on the positioning bottom plate.
The positioning bottom plate is provided with a plurality of groups of screw holes which are transversely distributed at intervals, and each group of screw holes comprises a plurality of screw holes which are longitudinally distributed at intervals;
Each group of screw holes is used for being fixedly connected with the lower part of the welding seat positioning block through screws.
The battery pole group containing cavity of the pole group fixing and positioning plate is inserted with a longitudinally distributed pole group movable positioning plate.
Compared with the prior art, the welding positioning tool for the power battery cover plate connecting sheet and the electrode group electrode lug can ensure the welding firmness of the high-capacity lithium ion battery cover plate connecting sheet and the battery electrode group electrode lug, greatly improve the welding assembly efficiency of the high-capacity power battery, ensure the quality of the battery, ensure the safe use of the lithium ion battery and prolong the service life of the battery.
The application of the invention is beneficial to simplifying the welding process of the battery, reducing the production cost of the battery, improving the assembly quality of the battery, ensuring the long-time normal use of the battery, effectively improving the market competitiveness of the product, being beneficial to being widely applied in production and having great production practice significance.
Drawings
Fig. 1 is a schematic perspective view of a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug, provided by the invention;
FIG. 2 is an enlarged schematic top view of a welding positioning fixture for a power battery cover plate connecting sheet and a pole group lug provided by the invention;
FIG. 3 is a schematic view of a battery cover plate connecting piece according to the present invention;
In the figure: 1 is a positioning bottom plate, 2 is a positioning support column, 3 is an integral supporting plate, 4 is a pole group fixed positioning plate, and 5 is a pole group movable positioning plate;
6 is a welding seat, 7 is a cover plate connecting sheet fixing block, 8 is a battery cover plate connecting sheet, 9 is a battery electrode group, and 10 is a welding seat positioning block;
40 is a battery pole group accommodating cavity, and 90 is a battery pole lug.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the drawings and embodiments.
Referring to fig. 1 to 3, the invention provides a welding positioning tool for a power battery cover plate connecting sheet and a pole group lug, which comprises an integral supporting plate 3;
The front end and the rear end of the bottom of the integral supporting plate 3 are respectively and vertically connected with two positioning struts 2 which are distributed at intervals;
The lower ends of the four positioning struts 2 are fixedly connected with the four corners of the rectangular positioning bottom plate 1;
The top of the integral supporting plate 3 is provided with a pole group fixing and positioning plate 4 distributed in a surrounding manner;
the pole group fixing and positioning plate 4 is provided with a battery pole group accommodating cavity 40 which is transversely distributed;
The right end of the battery pole group accommodating cavity 40 is clamped with the lower end of the battery pole group 9;
the left side of the battery pole group 9 is provided with two battery pole lugs 90 which are distributed at intervals in the front-back direction;
A welding seat 6 is arranged below the battery lug 90;
the top of the welding seat 6 is provided with a battery cover plate connecting sheet 8 (not limited to the one shown in fig. 2, but two can be arranged in front and back);
The right end top surface of the battery cover plate connecting sheet 8 is contacted with the bottom surface of the battery tab 90.
It should be noted that, according to the present invention, the battery cover plate connecting piece 8 and the battery pole group 9 having the battery pole lug 90 may be positioned, so that at this time, the ultrasonic welding may be performed on the connection position of the battery cover plate connecting piece and the battery pole lug of the battery pole group by the ultrasonic welding head (i.e., the ultrasonic welding head) of the conventional ultrasonic welding apparatus.
In the invention, in particular implementation, a cover plate connecting piece 7 which is transversely distributed is buckled on the edge of one end (such as the rear end of the battery cover plate connecting piece 8 shown in fig. 2) of the battery cover plate connecting piece 8, which is close to the pole group fixing and positioning plate 4;
the cover plate connecting piece fixing blocks 7 are transversely distributed, and reserved screw holes at the tops of the welding seats 6 are fixedly connected through screws.
In the present invention, in particular, the integral support plate 3 is provided with an elongated groove (for example, a rectangular groove) at a position corresponding to the lower portion of the battery pole group accommodation cavity 40;
the bottom of the welding seat 6 is fixedly connected with a welding seat positioning block 10;
The upper part of the welding seat positioning block 10 penetrates through the strip-shaped groove and then is connected with the bottom of the welding seat 6;
The lower part of the welding seat positioning block 10 is fixedly connected with a screw hole on the positioning bottom plate 1.
In the concrete implementation, the positioning bottom plate 1 is provided with a plurality of groups of screw holes which are transversely distributed at intervals, and each group of screw holes comprises a plurality of screw holes which are longitudinally distributed at intervals;
each set of screw holes is used for being fixedly connected with the lower part of the welding seat positioning block 10 through screws.
In the present invention, the lower part of the welding seat positioning block 10 is fixedly connected to screw holes at different positions on the positioning base plate 1, so that the transverse positions of the welding seat 6 and the battery cover plate connecting piece 8 are adjusted.
In the invention, in particular implementation, a pole group movable positioning plate 5 which is longitudinally distributed is inserted in a battery pole group accommodating cavity 40 of a pole group fixing positioning plate 4.
In the present invention, the size of the pole group fixing and positioning plate 4 is correspondingly matched with the size of the battery pole group required to be welded, so that the position of the pole group can be positioned.
Based on the technical scheme, the invention has scientific and reasonable structural design, is convenient to operate and popularize in a large area, and has low processing cost. Through the use of the new tool structure, the accurate positioning of the battery in the aspect of welding is realized, the welding process is simplified, and the welding quality of the battery is improved.
The invention can realize the positioning of the battery electrode group tab and the battery cover plate connecting sheet. The electrode lug of the electrode group is welded with the cover plate connecting sheet in a positioning ultrasonic welding mode, and the electrode lug of the electrode group is matched with the battery cover plate on a plane for welding.
Based on the technical scheme, the welding positioning between the battery cover plate connecting sheet and the lug of the battery pole group can be realized, the problems of welding dislocation, unstable welding and the like caused by inaccurate positioning in the welding process are prevented, the welding quality and consistency of the pole group are ensured, and meanwhile, the operability and continuity of the battery are improved on the basis of ensuring the safety of the battery.
In summary, compared with the prior art, the welding positioning tool for the power battery cover plate connecting sheet and the electrode group tab provided by the invention can ensure the welding firmness of the high-capacity lithium ion battery cover plate connecting sheet and the battery electrode group tab, can greatly improve the welding assembly efficiency of the high-capacity power battery, ensure the quality of the battery, ensure the safe use of the lithium ion battery and prolong the service life of the battery.
The application of the invention is beneficial to simplifying the welding process of the battery, reducing the production cost of the battery, improving the assembly quality of the battery, ensuring the long-time normal use of the battery, effectively improving the market competitiveness of the product, being beneficial to being widely applied in production and having great production practice significance.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (3)
1. The welding positioning tool for the power battery cover plate connecting sheet and the electrode group electrode lug is characterized by comprising an integral supporting plate (3); two positioning support posts (2) which are distributed at intervals are respectively and vertically connected with the front end and the rear end of the bottom of the integral support plate (3); the lower ends of the four positioning struts (2) are fixedly connected with the four corners of the rectangular positioning bottom plate (1); the top of the integral supporting plate (3) is provided with a pole group fixing and positioning plate (4) distributed in a surrounding way; the pole group fixing and positioning plate (4) is provided with a battery pole group accommodating cavity (40) which is transversely distributed; the right end of the battery pole group accommodating cavity (40) is clamped with the lower end of the battery pole group (9); the left side of the battery pole group (9) is provided with two battery pole lugs (90) which are distributed at intervals in the front-back direction; a welding seat (6) is arranged below the battery lug (90); a battery cover plate connecting sheet (8) to be welded is arranged at the top of the welding seat (6); the top surface of the right end of the battery cover plate connecting sheet (8) is contacted with the bottom surface of the battery lug (90); the battery cover plate connecting sheet (8) is close to the edge of one end of the pole group fixing and positioning plate (4), and is buckled with a cover plate connecting sheet fixing block (7) which is transversely distributed; a cover plate connecting sheet fixing block (7) is fixedly connected with a reserved screw hole at the top of the welding seat (6) through a screw; a battery pole group accommodating cavity (40) of the pole group fixing and positioning plate (4) is inserted with a longitudinally distributed pole group movable positioning plate (5).
2. Welding positioning fixture according to claim 1, characterized in that the integral support plate (3) is provided with an elongated slot at a position corresponding to the lower part of the battery pole group accommodation cavity (40); the bottom of the welding seat (6) is fixedly connected with a welding seat positioning block (10); the upper part of the welding seat positioning block (10) penetrates through the strip-shaped groove and is connected with the bottom of the welding seat (6); the lower part of the welding seat positioning block (10) is fixedly connected with a screw hole on the positioning bottom plate (1).
3. The welding positioning tool as claimed in claim 2, wherein the positioning base plate (1) is provided with a plurality of groups of screw holes which are transversely and alternately distributed, and each group of screw holes comprises a plurality of screw holes which are longitudinally and alternately distributed; each group of screw holes is used for being fixedly connected with the lower part of the welding seat positioning block (10) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078570.8A CN111151955B (en) | 2020-02-03 | Welding positioning tool for power battery cover plate connecting sheet and pole group lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078570.8A CN111151955B (en) | 2020-02-03 | Welding positioning tool for power battery cover plate connecting sheet and pole group lug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111151955A CN111151955A (en) | 2020-05-15 |
| CN111151955B true CN111151955B (en) | 2024-07-16 |
Family
ID=
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587108A (en) * | 2019-08-30 | 2019-12-20 | 天津力神电池股份有限公司 | Ultrasonic welding positioning tool for battery cover plate connecting sheet and battery pole group pole lug |
| CN211804574U (en) * | 2020-02-03 | 2020-10-30 | 力神动力电池系统有限公司 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587108A (en) * | 2019-08-30 | 2019-12-20 | 天津力神电池股份有限公司 | Ultrasonic welding positioning tool for battery cover plate connecting sheet and battery pole group pole lug |
| CN211804574U (en) * | 2020-02-03 | 2020-10-30 | 力神动力电池系统有限公司 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101935013B1 (en) | Battery module, battery pack comprising the battery module and vehicle comprising the battery pack | |
| US7405022B2 (en) | Secondary battery pack having configuration of alternative orientation | |
| KR101418629B1 (en) | Jig for charging and discharging of secondarybattery | |
| WO2023005005A1 (en) | Secondary battery, battery module, and electric device | |
| CN213601929U (en) | Special-shaped battery pack structure | |
| CN113381107A (en) | Energy storage battery cluster with simplified structure | |
| EP3783693A1 (en) | Battery module, battery pack comprising same battery module, and vehicle comprising same battery pack | |
| US12009547B2 (en) | Battery cell, battery, electrical device, and battery cell manufacturing method and device | |
| CN111151955B (en) | Welding positioning tool for power battery cover plate connecting sheet and pole group lug | |
| KR20120053152A (en) | Jig for charging and discharging with low resistance | |
| CN115055884A (en) | Laser welding auxiliary positioning tool for lithium ion power battery | |
| CN210848775U (en) | Ultrasonic welding positioning tool for battery cover plate connecting sheet and battery pole group pole lug | |
| CN110587108A (en) | Ultrasonic welding positioning tool for battery cover plate connecting sheet and battery pole group pole lug | |
| CN211804574U (en) | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug | |
| CN209571474U (en) | A kind of power battery module and electric vehicle | |
| CN111151955A (en) | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug | |
| CN102280606A (en) | Insulating protection pad inside energy power type lithium ion battery | |
| KR102205309B1 (en) | Battery Pack Comprising Terminal Block | |
| CN215966718U (en) | Pole piece side cut device | |
| CN219163634U (en) | Battery cell assembly | |
| CN220492139U (en) | Battery, battery pack and electricity utilization device | |
| CN217913635U (en) | Laser welding auxiliary positioning tool for lithium ion power battery | |
| CN220066044U (en) | Battery monomer, battery and power consumption device | |
| CN219658919U (en) | Battery cell charge-discharge balancing structure and battery pack with same | |
| CN219717192U (en) | Current collecting disc, battery unit, battery and electricity utilization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220125 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Applicant 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 Applicant before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. |
|
| GR01 | Patent grant |