CN212070755U - Stretching-type resistance press welding device for series-parallel connection group welding of soft package lithium batteries - Google Patents
Stretching-type resistance press welding device for series-parallel connection group welding of soft package lithium batteries Download PDFInfo
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- CN212070755U CN212070755U CN202020190600.XU CN202020190600U CN212070755U CN 212070755 U CN212070755 U CN 212070755U CN 202020190600 U CN202020190600 U CN 202020190600U CN 212070755 U CN212070755 U CN 212070755U
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- resistance welding
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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 an extension-type resistance pressure welding device for series-parallel connection group welding of soft package lithium batteries, which comprises a rod-shaped first resistance welding rod and a second resistance welding rod; the first resistance welding rod and the second resistance welding rod are parallel to each other at a central axis and are arranged side by side at intervals, the front end surfaces of the same ends of the first resistance welding rod and the second resistance welding rod are planes which form acute angles with the planes of the central axes of the first resistance welding rod and the second resistance welding rod and face the same direction, and electrode tips are arranged on the front end surfaces; the further improvement lies in that: the included angles of the front end surfaces of the first resistance welding rod and the second resistance welding rod and the planes of the central axes of the first resistance welding rod and the second resistance welding rod are larger than 0 degree and smaller than 60 degrees. Use the utility model discloses when carrying out resistance welding, required space is little, can satisfy and be used for soft packet of lithium cell series-parallel connection welding needs in groups.
Description
Technical Field
The utility model relates to a lithium cell technical field, concretely relates to be used for soft packet of lithium cell series-parallel connection to weld in groups to stretch into formula resistance pressure welding device.
Background
Resistance welding is a method of welding by locally heating a member to be welded and applying pressure while using resistance heat generated by passing current through the member and a contact portion as a heat source. The existing resistance welding mode comprises a first resistance welding rod and a second resistance welding rod which are rod-shaped, and during welding, the first resistance welding rod and the second resistance welding rod are placed on two sides of a piece to be welded and are electrified for welding. The main defects of the existing resistance welding mode are as follows: and a larger welding space is needed, and if the welding space is limited, the first resistance welding rod and the second resistance welding rod cannot extend into the clamping of a piece to be welded, so that resistance welding cannot be carried out. The soft packet of lithium cell is formed by monomer lithium cell closed assembly series-parallel connection, and the electrode of adjacent monomer lithium cell needs the welded connection to become, because monomer lithium cell thickness is thinner for the electrode distance of adjacent monomer lithium cell is nearer, consequently, even first resistance welds the stick, the second resistance welds the stick and becomes certain contained angle, also can't stretch into from treating welded electrode both sides and weld.
Disclosure of Invention
The utility model discloses to prior art's not enough, provide one kind and be used for soft packet of lithium cell series-parallel connection to weld in groups to stretch into formula resistance pressure welding device.
The utility model discloses a technical goal is realized to following technical scheme.
The stretching-in type resistance pressure welding device for series-parallel connection group welding of the soft package lithium battery comprises a rod-shaped first resistance welding rod and a rod-shaped second resistance welding rod; the improvement is that: the central axes of the first resistance welding rod and the second resistance welding rod are arranged in parallel at intervals, and the front end surfaces of the same ends of the first resistance welding rod and the second resistance welding rod are planes which form acute angles with the planes of the central axes of the first resistance welding rod and the second resistance welding rod and face the same direction; the front end surfaces of the first resistance welding rod and the second resistance welding rod are respectively provided with an electrode tip, and one side of the front end surfaces of the first resistance welding rod and the second resistance welding rod where the electrode tips are located is provided with a support plate which is opposite to the electrode tips at intervals.
In the structure, the included angle between the front end surface of the first resistance welding rod and the plane where the central axes of the first resistance welding rod and the second resistance welding rod are located is more than 0 degree and less than 60 degrees; the included angle between the front end surface of the second resistance welding rod and the plane where the central axes of the first resistance welding rod and the second resistance welding rod are located is larger than 0 degree and smaller than 60 degrees.
Compared with the prior art, the utility model, following positive effect has: the utility model discloses be equipped with first resistance welding stick, second resistance welding stick side by side and treat weldment one side, treat that the opposite side of weldment sets up the backup pad, like this, is using the utility model discloses when carrying out resistance welding, showing and saving required space, can satisfy and be used for soft packet of lithium cell series-parallel connection to weld needs in groups.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of the present invention.
Fig. 4 is an enlarged view of part i of fig. 3.
Detailed Description
The invention will be further explained with reference to the following embodiments according to the attached drawings.
The stretching-in resistance pressure welding device for series-parallel connection and group welding of the soft-package lithium battery shown in the attached drawings 1 and 2 comprises a rod-shaped first resistance welding rod 1 and a rod-shaped second resistance welding rod 2, wherein the central axes of the first resistance welding rod 1 and the second resistance welding rod 2 are parallel and are arranged side by side at intervals, and the front end surfaces of the same ends of the first resistance welding rod 1 and the second resistance welding rod 2 are planes which form acute angles with the planes of the central axes of the first resistance welding rod 1 and the second resistance welding rod 2 and face the same direction; the included angle between the front end surface of the second resistance welding rod 2 and the plane where the central axes of the first resistance welding rod 1 and the second resistance welding rod 2 are located is more than 0 degree and less than 60 degrees; the front end surfaces of the first resistance welding rod 1 and the second resistance welding rod 2 are respectively provided with an electrode tip 3, and one side of the front end surfaces of the first resistance welding rod 1 and the second resistance welding rod 2 where the electrode tips 3 are located is provided with a support plate 4 which is opposite to the electrode tip 3 at intervals.
When in use, as shown in the attached figures 3 and 4, the soft package lithium battery is formed by stacking a plurality of single lithium batteries 5 in series and parallel, and the thin tab 6 between the adjacent single lithium batteries 5 is overlapped and needs to be welded by resistance welding. One side of a sheet tab 6 to be welded which is overlapped is placed on a support plate 4, a first resistance welding rod 1 and a second resistance welding rod 2 are inserted from the other side of the overlapped sheet tab 6, after the insertion, the first resistance welding rod 1 and the second resistance welding rod 2 are moved, the electrode head 3 is used for pressing the overlapped sheet tab 6 to be welded on the support plate 4, and the welding is carried out by electrifying. In this embodiment, the overlapped sheet tabs 6 may be the following cases: the copper sheet tab overlaps with the aluminum sheet tab, the copper sheet tab overlaps with the copper sheet tab, and the aluminum sheet tab overlaps with the aluminum sheet tab.
In other embodiments, the pieces to be welded may be other pieces requiring welding in addition to the sheet tabs 6.
Claims (2)
1. An extension-type resistance pressure welding device for series-parallel connection group welding of soft package lithium batteries comprises a first resistance welding rod (1) and a second resistance welding rod (2) which are rod-shaped; the method is characterized in that: the central axes of the first resistance welding rod (1) and the second resistance welding rod (2) are arranged in parallel at intervals, and the front end surfaces of the same ends of the first resistance welding rod (1) and the second resistance welding rod (2) are planes which form acute angles with the planes of the central axes of the first resistance welding rod (1) and the second resistance welding rod (2) and face the same direction; electrode tips (3) are respectively arranged on the front end faces of the first resistance welding rod (1) and the second resistance welding rod (2), and supporting plates (4) opposite to the electrode tips (3) at intervals are arranged on one sides, where the electrode tips (3) are located, of the front end faces of the first resistance welding rod (1) and the second resistance welding rod (2).
2. The stretching-type resistance pressure welding device for the series-parallel group welding of the lithium-ion battery pack as claimed in claim 1, characterized in that: the included angle between the front end face of the first resistance welding rod (1) and the plane where the central axes of the first resistance welding rod (1) and the second resistance welding rod (2) are located is larger than 0 degree and smaller than 60 degrees; the included angle between the front end face of the second resistance welding rod (2) and the plane where the central axes of the first resistance welding rod (1) and the second resistance welding rod (2) are located is larger than 0 degree and smaller than 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190600.XU CN212070755U (en) | 2020-02-20 | 2020-02-20 | Stretching-type resistance press welding device for series-parallel connection group welding of soft package lithium batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190600.XU CN212070755U (en) | 2020-02-20 | 2020-02-20 | Stretching-type resistance press welding device for series-parallel connection group welding of soft package lithium batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212070755U true CN212070755U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020190600.XU Active CN212070755U (en) | 2020-02-20 | 2020-02-20 | Stretching-type resistance press welding device for series-parallel connection group welding of soft package lithium batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212070755U (en) |
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2020
- 2020-02-20 CN CN202020190600.XU patent/CN212070755U/en active Active
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