CN210908609U - Welding head structure of lithium ion secondary battery - Google Patents
Welding head structure of lithium ion secondary battery Download PDFInfo
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- CN210908609U CN210908609U CN201922043875.0U CN201922043875U CN210908609U CN 210908609 U CN210908609 U CN 210908609U CN 201922043875 U CN201922043875 U CN 201922043875U CN 210908609 U CN210908609 U CN 210908609U
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- welding
- utmost point
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- welding line
- point ear
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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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- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to a lithium ion secondary battery bonding tool structure, including bonding tool and the welding line region of setting on the bonding tool, welding line region department is through fixed utmost point ear strap of welded mode and substrate, and the substrate covers on utmost point ear strap, and utmost point ear strap and substrate welded fastening back are welding the regional a plurality of welding lines that form of line. The utility model discloses weld utmost point ear strap and substrate, the interval and the control that weld the line region through controlling several differences surpass and weld the relative distance at line and substrate edge in-process, the heat production region of utmost point ear when having improved the electric current through utmost point ear and weld the regional current shunting problem of line in the difference, and then reduced the heat production quantity of position and the heat production speed of solder joint position at utmost point ear position when the heavy current passes through utmost point ear, improved the security performance under the lithium ion battery heavy current.
Description
Technical Field
The utility model belongs to the technical field of battery tab welding technique and specifically relates to a lithium ion secondary battery bonding tool structure.
Background
In lithium ion secondary battery's safety test process, when passing through utmost point ear because of the heavy current, have the heat production problem of utmost point ear itself and the heat production problem of first solder joint, easily because of the heat collection of this heat production problem, lead to the diaphragm to melt to wear to draw and generate heat out of control. In order to solve the above problems, it is necessary to design a welding head structure of a lithium ion secondary battery to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium ion secondary battery bonding tool structure in order to solve the defect that prior art exists.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a lithium ion secondary battery bonding tool structure, includes bonding tool and sets up the welding line region on the bonding tool, welding line region department is through fixed utmost point ear strap of welded mode and substrate, and the substrate covers on utmost point ear strap, and utmost point ear strap and substrate welded fastening back form a plurality of welding lines in the welding line region.
Furthermore, the number of the welding lines is at least 3, the size width of the welding lines is 1-20mm, and the length of the welding lines is 1-20 mm.
Furthermore, the number of the welding lines is four, and the welding lines are sequentially and respectively a first welding line, a second welding line, a third welding line and a fourth welding line, wherein the first welding line, the second welding line, the third welding line and the fourth welding line are mutually spaced.
Further, the distance between the first welding lines and the second welding lines is smaller than the distance between the second welding lines and the third welding lines, and the distance between the second welding lines and the third welding lines is smaller than the distance between the third welding lines and the fourth welding lines.
Furthermore, the distance between the first welding line and the second welding line is 1/5-1/2 welding line length, the distance between the second welding line and the third welding line is 1/10-1/2 welding line length increased on the basis of the distance between the first welding line and the second welding line, and the distance between the third welding line and the fourth welding line is 1/10-1/2 welding line length increased on the basis of the distance between the second welding line and the third welding line.
Further, the distance between the first welding line and the base material is not more than 5 mm.
The utility model has the advantages that: the utility model discloses weld utmost point ear strap and substrate, the interval and the control that weld the line region through controlling several differences surpass and weld the relative distance at line and substrate edge in-process, the heat production region of utmost point ear when having improved the electric current through utmost point ear and weld the regional current shunting problem of line in the difference, and then reduced the heat production quantity of position and the heat production speed of solder joint position at utmost point ear position when the heavy current passes through utmost point ear, improved the security performance under the lithium ion battery heavy current.
Drawings
Fig. 1 is a schematic view of a welding head of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of the welding effect of the present invention.
Detailed Description
As shown in fig. 1 to 3, a welding head structure of a lithium ion secondary battery comprises a welding head 1 and a welding line region 2 arranged on the welding head 1, wherein a tab metal strip 3 and a base material 4 are fixed on the welding line region 2 in a welding manner, the base material 4 covers the tab metal strip 3, and a plurality of welding lines are formed on the welding line region 2 after the tab metal strip 3 and the base material 4 are welded and fixed.
Wherein, the number of the welding lines is at least 3, the size width of the welding lines is 1-20mm, and the length of the welding lines is 1-20 mm.
In this embodiment, the number of the solder bumps is four, and the first solder bump 201, the second solder bump 202, the third solder bump 203 and the fourth solder bump 204 are sequentially and respectively spaced from each other.
Further, a distance 301 between the first solder pattern 201 and the second solder pattern 202 is smaller than a distance 302 between the second solder pattern 202 and the third solder pattern 203, and a distance 302 between the second solder pattern 202 and the third solder pattern 203 is smaller than a distance 303 between the third solder pattern 203 and the fourth solder pattern 204.
The utility model discloses in, first seam 201 and the second of welding welds interval 301 between seam 202 and is 1/5-1/2 welding seam length, and the second welds interval 302 between seam 202 and the third seam 203 and adds 1/10-1/2 welding seam length for interval 301 basis, and the third welds interval 303 between seam 203 and the fourth seam 204 and adds 1/10-1/2 welding seam length for interval 302 basis. The first weld line 201 is spaced from the substrate 4 by no more than 5 mm.
The utility model discloses weld utmost point ear strap and substrate, the interval and the control that weld the line region through controlling several differences surpass and weld the relative distance at line and substrate edge in-process, the heat production region of utmost point ear when having improved the electric current through utmost point ear and weld the regional current shunting problem of line in the difference, and then reduced the heat production quantity of position and the heat production speed of solder joint position at utmost point ear position when the heavy current passes through utmost point ear, improved the security performance under the lithium ion battery heavy current.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The welding head structure of the lithium ion secondary battery comprises a welding head and a welding line area arranged on the welding head, and is characterized in that a lug metal belt and a base material are fixed in the welding line area in a welding mode, the base material covers the lug metal belt, and a plurality of welding lines are formed in the welding line area after the lug metal belt and the base material are welded and fixed.
2. The welding head structure of the lithium ion secondary battery according to claim 1, wherein the number of the welding lines is at least 3, the size width of the welding lines is 1-20mm, and the length of the welding lines is 1-20 mm.
3. The welding head structure of claim 2, wherein the number of the welding lines is four, and the four welding lines are respectively a first welding line, a second welding line, a third welding line and a fourth welding line, and the first welding line, the second welding line, the third welding line and the fourth welding line are spaced from each other.
4. The welding head structure of claim 3, wherein the spacing between the first weld pattern and the second weld pattern is smaller than the spacing between the second weld pattern and the third weld pattern, and the spacing between the second weld pattern and the third weld pattern is smaller than the spacing between the third weld pattern and the fourth weld pattern.
5. The welding head structure of the lithium ion secondary battery as claimed in claim 4, wherein the distance between the first welding line and the second welding line is 1/5-1/2 welding line length, the distance between the second welding line and the third welding line is 1/10-1/2 welding line length increased on the basis of the distance between the first welding line and the second welding line, and the distance between the third welding line and the fourth welding line is 1/10-1/2 welding line length increased on the basis of the distance between the second welding line and the third welding line.
6. The welding head structure of claim 3, wherein the first weld pattern is spaced from the substrate by no more than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043875.0U CN210908609U (en) | 2019-11-25 | 2019-11-25 | Welding head structure of lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043875.0U CN210908609U (en) | 2019-11-25 | 2019-11-25 | Welding head structure of lithium ion secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210908609U true CN210908609U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922043875.0U Active CN210908609U (en) | 2019-11-25 | 2019-11-25 | Welding head structure of lithium ion secondary battery |
Country Status (1)
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| CN (1) | CN210908609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275738A (en) * | 2021-05-12 | 2021-08-20 | 深圳市艾雷激光科技有限公司 | Welding method for type-c tinplate joint and shell |
| CN115832628A (en) * | 2023-02-09 | 2023-03-21 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
-
2019
- 2019-11-25 CN CN201922043875.0U patent/CN210908609U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275738A (en) * | 2021-05-12 | 2021-08-20 | 深圳市艾雷激光科技有限公司 | Welding method for type-c tinplate joint and shell |
| CN113275738B (en) * | 2021-05-12 | 2023-10-13 | 深圳市艾雷激光科技有限公司 | Welding method of type-c tinplate joint and shell |
| CN115832628A (en) * | 2023-02-09 | 2023-03-21 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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