CN111151955A - Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug - Google Patents
Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug Download PDFInfo
- Publication number
- CN111151955A CN111151955A CN202010078570.8A CN202010078570A CN111151955A CN 111151955 A CN111151955 A CN 111151955A CN 202010078570 A CN202010078570 A CN 202010078570A CN 111151955 A CN111151955 A CN 111151955A
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- battery
- positioning
- pole group
- welding
- cover plate
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 78
- 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
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a welding and positioning tool for a power battery cover plate connecting sheet and a pole group pole 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 pillars which are distributed at intervals; the lower ends of the four positioning pillars 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 positioning plates which are distributed in a surrounding manner; the pole group fixing 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 tab; a battery cover plate connecting sheet to be welded is placed at the top of the welding seat; the top surface of the right end of the battery cover plate connecting sheet is contacted with the bottom surface of the battery tab. The welding method can ensure the welding firmness of the high-capacity lithium ion battery cover plate connecting sheet and the battery pole group lug, improve the welding and assembling 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 and 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, 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.
Present large capacity battery is stricter to battery utmost point ear welded requirement, if utmost point ear and battery cover plate connection piece welding are not firm (be the rosin joint), because the battery capacity is high, when big multiplying power charge-discharge, can make battery cover plate 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, the internal resistance increases, influence the various parameter performance of lithium cell, finally lead to the unable continued use of battery, serious still can arouse the security of battery.
Therefore, at present, a device is urgently needed to be developed, the welding firmness of a high-capacity lithium ion battery cover plate connecting sheet and a battery pole group pole lug can be guaranteed, the welding assembly efficiency of a high-capacity power battery can be greatly improved, the quality of the battery is guaranteed, the safe use of the lithium ion battery is guaranteed, and the service life of the battery is prolonged.
Disclosure of Invention
The invention aims to provide a welding and positioning tool for a power battery cover plate connecting sheet and a pole group pole lug, aiming at the technical defects in the prior art.
Therefore, the invention provides a welding and positioning tool for a power battery cover plate connecting sheet and a pole group pole 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 pillars which are distributed at intervals;
the lower ends of the four positioning pillars 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 positioning plates which are distributed in a surrounding manner;
the pole group fixing positioning plate is provided with battery pole 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 from front to back;
a welding seat is arranged below the battery tab;
a battery cover plate connecting sheet to be welded is placed at the top of the welding seat;
the top surface of the right end of the battery cover plate connecting sheet is contacted with the bottom surface of the battery tab.
The battery cover plate connecting piece is close to the edge of one end of the pole group fixing positioning plate, and a cover plate connecting piece fixing block which is transversely distributed is buckled on the battery cover plate connecting piece;
the cover plate connecting piece fixing block is fixedly connected with the reserved screw hole in the top of the welding seat through a screw.
The integral 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 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 distributed at intervals in the transverse direction, and each group of screw holes comprises a plurality of screw holes distributed at intervals in the longitudinal direction;
each group of screw holes are used for fixedly connecting the lower parts of the welding seat positioning blocks through screws.
The battery pole group containing cavity of the pole group fixing positioning plate is internally inserted with pole group movable positioning plates which are longitudinally distributed.
Compared with the prior art, the technical scheme provided by the invention has the advantages that the welding positioning tool for the cover plate connecting sheet and the pole group pole lug of the power battery is provided, the welding firmness of the cover plate connecting sheet of the high-capacity lithium ion battery and the pole group pole lug of the battery can be ensured, the welding assembly efficiency of the high-capacity power battery can be greatly improved, the quality of the battery is ensured, the safe use of the lithium ion battery is ensured, and the service life of the battery is prolonged.
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 and positioning tool for a power battery cover plate connecting sheet and a pole group tab provided by the invention;
fig. 2 is an enlarged schematic top view of a welding and positioning tool for a power battery cover plate connecting sheet and a pole group pole lug provided by the invention;
FIG. 3 is a schematic view of a battery cover tab according to the present invention;
in the figure: 1 is a positioning bottom plate, 2 is a positioning support, 3 is an integral supporting plate, 4 is a pole group fixing positioning plate, and 5 is a pole group movable positioning plate;
6 is a welding seat, 7 is a cover plate connecting piece fixing block, 8 is a battery cover plate connecting piece, 9 is a battery pole group, and 10 is a welding seat positioning block;
40 is the battery pack receiving cavity and 90 is the battery tab.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the invention provides a welding and 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 pillars 2 which are distributed at intervals;
the lower ends of the four positioning pillars 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 pole group fixing and positioning plates 4 which are distributed in a surrounding way;
the pole group fixing and positioning plate 4 is provided with battery pole group accommodating cavities 40 which are distributed transversely;
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 tabs 90 which are distributed at intervals from front to back;
a welding seat 6 is arranged below the battery tab 90;
a battery cover plate connecting piece 8 (not limited to one shown in fig. 2, but also can be a front connecting piece and a rear connecting piece) to be welded is placed at the top of the welding seat 6;
the top surface of the right end of the battery cover plate connecting piece 8 is contacted with the bottom surface of the battery tab 90.
It should be noted that, with the present invention, the battery cover plate connecting piece 8 and the battery pole group 9 having the battery tab 90 can be positioned, so that at this time, the ultrasonic welding can be performed on the mutual connecting position of the battery cover plate connecting piece and the battery tab of the battery pole group by the ultrasonic welding head (i.e., ultrasonic welding head) of the existing ultrasonic welding equipment.
In the invention, in a concrete implementation, a cover plate connecting piece fixing block 7 which is transversely distributed is buckled at the edge of one end (for example, the rear end of the battery cover plate connecting piece 8 shown in fig. 2) of a battery cover plate connecting piece 8, which is close to a pole group fixing and positioning plate 4;
the cover plate connecting piece fixing blocks 7 which are transversely distributed are fixedly connected with the reserved screw holes at the top of the welding bases 6 through screws.
In the present invention, in a specific implementation, the integral supporting plate 3 is provided with a strip-shaped groove (e.g., a rectangular groove) at a position corresponding to the lower portion of the battery pole group accommodating 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 overlong 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 particular, a plurality of groups of screw holes distributed at intervals in the transverse direction are formed in the positioning bottom plate 1, and each group of screw holes comprises a plurality of screw holes distributed at intervals in the longitudinal direction;
each group of screw holes are used for fixedly connecting the lower parts of the welding seat positioning blocks 10 through screws.
In the present invention, the lower portion of the welding seat positioning block 10 is fixedly connected to screw holes at different positions on the positioning base plate 1, so as to adjust the lateral positions of the welding seat 6 and the battery cover plate connecting piece 8.
In the invention, in a concrete implementation, the battery pole group accommodating cavity 40 of the pole group fixing positioning plate 4 is inserted with the pole group movable positioning plates 5 which are longitudinally distributed.
It should be noted that, in the present invention, the size of the pole group fixing and positioning plate 4 is matched with the size of the battery pole group requiring welding operation, so that the position of the pole group can be positioned.
Based on the technical scheme, the invention has the advantages of scientific and reasonable structural design, convenient operation, low processing cost and convenient large-area popularization. Through the input and use of the new tool structure, the accurate positioning in the aspect of battery welding is realized, the welding process is simplified, and the battery welding quality is improved.
The invention can realize the positioning of the battery pole group lug and the battery cover plate connecting piece. The pole group pole lugs and the cover plate connecting pieces are welded in a positioning ultrasonic welding mode, and the pole group pole lugs and the battery cover plate are matched and welded on the plane.
Based on the technical scheme, the welding positioning between the battery cover plate connecting sheet and the electrode lug of the battery electrode group can be realized, the problems of welding dislocation, infirm welding and the like caused by inaccurate positioning in the welding process are prevented, the welding quality and consistency of the electrode group are ensured, and the operability and the continuity of the battery are improved on the basis of ensuring the safety of the battery.
Compared with the prior art, the welding positioning tool for the cover plate connecting sheet and the pole group pole lug of the power battery provided by the invention can ensure the welding firmness of the cover plate connecting sheet of the high-capacity lithium ion battery and the pole group pole lug of the battery, 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 only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various 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 (5)
1. A welding and positioning tool for a power battery cover plate connecting sheet and a pole group pole lug is characterized by comprising 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 pillars (2) which are distributed at intervals;
the lower ends of the four positioning pillars (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 pole group fixing positioning plates (4) which are distributed in a surrounding way;
the pole group fixing positioning plate (4) is provided with battery pole group accommodating cavities (40) which are 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 from front to back;
a welding seat (6) is arranged below the battery tab (90);
a battery cover plate connecting sheet (8) to be welded is placed 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 tab (90).
2. The welding positioning tool according to claim 1, characterized in that a cover plate connecting piece fixing block (7) which is transversely distributed is buckled on the edge of one end of the battery cover plate connecting piece (8) close to the pole group fixing positioning plate (4);
and the cover plate connecting piece fixing block (7) is fixedly connected with a reserved screw hole at the top of the welding seat (6) through a screw.
3. The welding positioning tool according to claim 1 or 2, characterized in that the integral supporting plate (3) is provided with a strip-shaped groove at a position corresponding to the lower part of the battery pole group accommodating 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).
4. The welding positioning tool according to claim 3, wherein the positioning bottom plate (1) is provided with a plurality of groups of screw holes distributed at intervals in the transverse direction, and each group of screw holes comprises a plurality of screw holes distributed at intervals in the longitudinal direction;
each group of screw holes are used for fixedly connecting the lower parts of the welding seat positioning blocks (10) through screws.
5. The welding positioning tool according to claim 1, wherein longitudinally distributed pole group movable positioning plates (5) are inserted into the battery pole group accommodating cavity (40) of the pole group fixing positioning plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078570.8A CN111151955A (en) | 2020-02-03 | 2020-02-03 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078570.8A CN111151955A (en) | 2020-02-03 | 2020-02-03 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111151955A true CN111151955A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010078570.8A Pending CN111151955A (en) | 2020-02-03 | 2020-02-03 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
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| Country | Link |
|---|---|
| CN (1) | CN111151955A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202224842U (en) * | 2011-09-14 | 2012-05-23 | 江苏福瑞士新能源有限公司 | Ultrasonic welding fixture for batteries |
| CN204449750U (en) * | 2015-01-30 | 2015-07-08 | 湖南高远电池有限公司 | A kind of positioner of metal casing lithium ion battery tab welding |
| CN204771347U (en) * | 2015-05-28 | 2015-11-18 | 云南锡业集团（控股）有限责任公司 | Aluminum hull power battery welds apron anchor clamps |
| CN205650966U (en) * | 2016-04-11 | 2016-10-19 | 珠海光宇电池有限公司 | Lithium - ion battery pole pieces and protection shield welding position anchor clamps |
| CN206277083U (en) * | 2016-12-22 | 2017-06-27 | 枣庄亿新电子科技有限公司 | Lithium battery cover plate ultra-sonic welded frock |
| CN206388795U (en) * | 2017-01-04 | 2017-08-08 | 深圳吉阳智能科技有限公司 | Fixture for assembling battery core and cover plate |
| CN109888132A (en) * | 2019-04-10 | 2019-06-14 | 苏州美阅新能源有限公司 | A kind of automobile power cell cover board |
| CN209334992U (en) * | 2018-10-08 | 2019-09-03 | 力神动力电池系统有限公司 | A kind of ultrasonic bond positioning device of lithium ion Soft Roll power battery |
| 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 |
-
2020
- 2020-02-03 CN CN202010078570.8A patent/CN111151955A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202224842U (en) * | 2011-09-14 | 2012-05-23 | 江苏福瑞士新能源有限公司 | Ultrasonic welding fixture for batteries |
| CN204449750U (en) * | 2015-01-30 | 2015-07-08 | 湖南高远电池有限公司 | A kind of positioner of metal casing lithium ion battery tab welding |
| CN204771347U (en) * | 2015-05-28 | 2015-11-18 | 云南锡业集团（控股）有限责任公司 | Aluminum hull power battery welds apron anchor clamps |
| CN205650966U (en) * | 2016-04-11 | 2016-10-19 | 珠海光宇电池有限公司 | Lithium - ion battery pole pieces and protection shield welding position anchor clamps |
| CN206277083U (en) * | 2016-12-22 | 2017-06-27 | 枣庄亿新电子科技有限公司 | Lithium battery cover plate ultra-sonic welded frock |
| CN206388795U (en) * | 2017-01-04 | 2017-08-08 | 深圳吉阳智能科技有限公司 | Fixture for assembling battery core and cover plate |
| CN209334992U (en) * | 2018-10-08 | 2019-09-03 | 力神动力电池系统有限公司 | A kind of ultrasonic bond positioning device of lithium ion Soft Roll power battery |
| CN109888132A (en) * | 2019-04-10 | 2019-06-14 | 苏州美阅新能源有限公司 | A kind of automobile power cell cover board |
| 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 |
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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. |