CN212398480U - Clamp for ultrasonic welding of lithium battery - Google Patents
Clamp for ultrasonic welding of lithium battery Download PDFInfo
- Publication number
- CN212398480U CN212398480U CN202020542418.6U CN202020542418U CN212398480U CN 212398480 U CN212398480 U CN 212398480U CN 202020542418 U CN202020542418 U CN 202020542418U CN 212398480 U CN212398480 U CN 212398480U
- Authority
- CN
- China
- Prior art keywords
- workbench
- clamp
- supporting piece
- waist
- shaped hole
- 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
Images
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a clamp for ultrasonic welding of lithium batteries, which comprises a lower workbench, a lower support piece, an upper workbench and an upper support piece, wherein the lower workbench is used for placing lithium batteries; the lower support piece is connected with the lower workbench and used for supporting one side of the lug; the upper workbench is used for covering the lower workbench; the upper supporting piece is connected with the upper workbench, a through hole is formed in the upper supporting piece, the upper supporting piece is used for pressing the opposite side of the lug when the upper workbench and the lower workbench cover, and the through hole is used for limiting the protection sheet. The utility model discloses an anchor clamps can improve the lithium cell in ultrasonic bonding's yields.
Description
Technical Field
The utility model relates to a technical field of anchor clamps especially relates to an anchor clamps for lithium cell ultrasonic bonding.
Background
In the process of manufacturing the lithium battery, the connection of the tab and the pin through an ultrasonic welding mode becomes a mainstream process. At present, the welding effect of ultrasonic welding process can be because the pole piece number of piles is too big for utmost point ear fold is obvious, forms the rosin joint, can be because ultrasonic welding's high frequency vibration even, and the crackle appears in utmost point ear welding seal department. Cracks, cold joints and lug dislocation caused by welding lead to poor consistency of the super-welding process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a problem that is used for lithium cell ultrasonic bonding's anchor clamps in order to solve utmost point ear rosin joint, crackle appear in ultrasonic bonding.
In order to realize the purpose, the utility model adopts the following technical scheme:
the clamp for the ultrasonic welding of the lithium battery comprises a lower workbench, a lower supporting piece, an upper workbench and an upper supporting piece, wherein the lower workbench is used for placing the lithium battery; the lower support piece is connected with the lower workbench and used for supporting one side of the lug; the upper workbench is used for covering the lower workbench; the upper supporting piece is connected with the upper workbench, a through hole is formed in the upper supporting piece, the upper supporting piece is used for pressing the opposite side of the lug when the upper workbench and the lower workbench cover, and the through hole is used for limiting the protection sheet.
Further, the clamp further comprises a lower fastening screw, the lower support piece is provided with a lower waist-shaped hole, the lower fastening screw penetrates through the lower waist-shaped hole to be connected with the lower workbench, and the lower waist-shaped hole is used for adjusting the position of the lower support piece relative to the pole lug.
Further, the ratio of the length of the lower kidney-shaped hole to the length of the tab is 0.5 to 1.
Further, the lower support is provided with a lower convex part which is arc-shaped and is used for extruding the joint of the tab and the battery cell main body.
Furthermore, the clamp further comprises an upper fastening screw, the upper supporting piece is provided with an upper waist-shaped hole, the upper fastening screw penetrates through the upper waist-shaped hole to be connected with the upper workbench, and the upper waist-shaped hole is used for adjusting the position of the upper supporting piece relative to the pole lug.
Further, the ratio of the length of the upper waist-shaped hole to the length of the tab is 0.5 to 1.
Further, the upper support part is provided with an upper convex part, the upper convex part is arc-shaped, and the upper convex part is used for extruding the joint of the tab and the battery cell main body.
Furthermore, the edge of the upper supporting piece, which is far away from the lower workbench, of the through hole is provided with a chamfer.
Further, the material of the lower support comprises steel-aluminum alloy sprayed with Teflon, polyurethane material, organic glass or polypropylene.
Further, the upper support member is made of steel-aluminum alloy sprayed with Teflon, polyurethane material, organic glass or polypropylene.
The utility model discloses beneficial effect does:
the utility model provides a tool includes workstation, lower support piece, last workstation and last support piece down. The lower workbench is used for placing the lithium battery, and the upper workbench is used for covering the lower workbench so as to fix the lithium battery. The lower support piece is connected with the lower workbench and used for supporting one side of the lug; the upper supporting piece is connected with the upper workbench, the upper supporting piece is used for pressing the opposite side of the lug when the upper workbench covers the lower workbench, the lower supporting piece and the upper supporting piece are matched with each other to clamp and fix the lug, and the situation that the lug moves or tilts in the process of ultrasonic welding is prevented. The through hole is formed in the upper supporting piece and used for limiting the protection plate, the protection plate is prevented from moving in the ultrasonic welding process, and the outline size of the through hole is equal to or slightly larger than that of the protection plate. The jig plays a strict position limiting role in the positions of the lug and the protection plate, so that the phenomenon that the lug is wrinkled due to the fact that the lug or the protection plate is moved cannot occur in the whole ultrasonic welding process, and the yield of ultrasonic welding is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the previous developments of the present invention, the drawings used in the embodiments or the previous developments will be briefly described below, and it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a clamp provided herein;
FIG. 2 is a schematic structural diagram of a lithium battery provided herein;
FIG. 3 is an enlarged partial schematic view of region B of FIG. 1 provided herein;
FIG. 4 is an enlarged, fragmentary schematic view of area A of FIG. 1 provided herein;
FIG. 5 is a cross-sectional schematic view of an upper support provided herein;
FIG. 6 is a schematic structural view of a lower support provided herein;
fig. 7 is a cross-sectional schematic view of an upper support provided herein.
The graphical notation is as follows:
Lower kidney-shaped hole 122 of lower support 12 of lower workbench 11 of clamp 10
Lower convex part 124, upper working table 13, upper supporting piece 14 and through hole 142
Detailed Description
The description in the present application relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated.
The description in the present application relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a clamp 10 provided in the present application, fig. 2 is a schematic structural diagram of a lithium battery 20 provided in the present application, fig. 3 is a schematic partial enlarged diagram of a region a in fig. 1 provided in the present application, and fig. 4 is a schematic partial enlarged diagram of a region B in fig. 1 provided in the present application.
The tool of this application is used for using when lithium cell 20 ultrasonic bonding, specifically, lithium cell 20 includes electric core main part 22 and the screening sheet 24, utmost point ear 26 and the pin 28 that connect gradually, and screening sheet 24, utmost point ear 26 and pin 28 pass through ultrasonic bonding and connect, and utmost point ear 26 is connected with electric core main part 22 to derive the electric quantity in electric core main part 22.
The jig of the application comprises a lower workbench 11, a lower support 12, an upper workbench 13 and an upper support 14.
The lower workbench 11 is used for placing the lithium battery 20, and the upper workbench 13 is used for covering the lower workbench 11 so as to fix the lithium battery 20. The upper working table 13 and the lower working table 11 can be rotatably connected through a hinge; the upper table 13 and the lower table 11 may also be slidably connected by guide posts.
The lower support 12 is connected with the lower workbench 11, and the lower support 12 is used for supporting one side of the tab 26; the upper supporting piece 14 is connected with the upper workbench 13, the upper supporting piece 14 is used for pressing the opposite side of the tab 26 when the upper workbench 13 and the lower workbench 11 are covered, and the lower supporting piece 12 and the upper supporting piece 14 are matched with each other to clamp and fix the tab 26, so that the tab 26 is prevented from moving or tilting in the ultrasonic welding process. The upper support 14 is provided with a through hole 142, the through hole 142 is used for limiting the protection sheet 24 and preventing the protection sheet 24 from moving in the ultrasonic welding process, and the contour size of the through hole 142 is equal to or slightly larger than that of the protection sheet 24. The tool plays strict position limiting action to utmost point ear 26 and protecting piece 24's position to ensure that can not appear because utmost point ear 26 or protecting piece 24 move and lead to utmost point ear 26 to appear the phenomenon of fold at whole ultrasonic bonding's in-process, and then improve ultrasonic bonding's yields.
Referring to fig. 5, fig. 5 is a schematic cross-sectional view of the upper supporting element 14 provided in the present application.
The upper support 14 is provided with a chamfer 148 at the edge of the through hole 142 away from the lower working platform 11, and the chamfer 148 may be a chamfer angle, and the chamfer 148 may also be a fillet angle. Protective sheet 24 is placed into through-hole 142 from a direction away from lower table 11, and chamfer 148 serves as a guide to facilitate placement of protective sheet 24, thereby improving production efficiency.
Referring to fig. 1, 2, 3 and 6, fig. 6 is a schematic structural view of the lower support 12 according to the present application.
The clamp 10 further comprises a lower fastening screw 15, the lower support 12 is provided with a lower kidney-shaped hole 122, the lower fastening screw 15 passes through the lower kidney-shaped hole 122 to be connected with the lower worktable 11, and the lower kidney-shaped hole 122 is used for adjusting the position of the lower support 12 relative to the tab 26 so as to adapt to tabs 26 with different lengths. It is understood that the lower support 12 can slide relative to the lower fastening screw 15 through the lower kidney-shaped hole 122 to change its distance relative to the cell main body 22 to accommodate tabs 26 of different lengths.
The ratio of the length of the lower kidney-shaped hole 122 to the length of the tab 26 may be 0.5 to 1, for example, 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc. Further, the width of the lower kidney-shaped hole 122 is 2 mm to 10 mm, such as 2 mm, 3 mm, 5 mm, 8 mm, 9 mm, 10 mm, etc., and the width of the lower kidney-shaped hole 122 is equal to or slightly larger than the diameter of the lower fastening screw 15.
The lower support 12 is provided with a lower convex portion 124, the lower convex portion 124 is arc-shaped, and the lower convex portion 124 is used for pressing the joint of the tab 26 and the cell main body 22. The tab 26 is formed by a plurality of conductive sheets extending from the cell main body 22 and then stacked, and the thickness of the cell main body 22 is much greater than that of the tab 26, so that a step may occur at the connection position of the tab 26 and the cell main body 22, and the tab 26 may form a wrinkle at this position. When the upper workbench 13 and the lower workbench 11 are covered, the arc-shaped lower convex part 124 extrudes the joint of the tab 26 and the cell main body 22, so that the tab 26 is smoothed out, and the tab 26 is prevented from being wrinkled.
The curvature of the lower convex portion 124 may be controlled to be between 0.2 pi-pi, such as 0.2 pi, 0.4 pi, 0.5 pi, 0.8 pi, 0.9 pi, etc.
The material of the lower supporting member 12 includes teflon-plated steel-aluminum alloy, Polyurethane (PU), polymethyl methacrylate (PMMA), or polypropylene (PP). The material is hard and non-metallic, and the lower support 12 made of the material can effectively reduce granulation after welding of the tab 26.
The clamp 10 further comprises a lower elastic sheet, wherein the lower fastening screw 15 penetrates through the lower elastic sheet, and the lower elastic sheet is clamped between the lower fastening screw 15 and the lower support 12.
Referring to fig. 1, 2, 4 and 7, fig. 7 is a schematic cross-sectional view of an upper support 14 provided in the present application.
The clamp 10 further comprises an upper fastening screw 16, the upper support 14 is provided with an upper waist-shaped hole 144, the upper fastening screw 16 passes through the upper waist-shaped hole 144 to be connected with the upper workbench 13, and the upper waist-shaped hole 144 is used for adjusting the position of the upper support 14 relative to the tabs 26 so as to adapt to the tabs 26 with different lengths. It will be appreciated that the upper support 14 can slide relative to the upper fastening screw 16 through the upper waist-shaped aperture 144 to change its distance relative to the cell body 22 to accommodate tabs 26 of different lengths.
The ratio of the length of the upper waist-shaped hole 144 to the length of the tab 26 may be 0.5 to 1, e.g., 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc. Further, the width of the upper waist-shaped hole 144 is 2 mm to 10 mm, such as 2 mm, 3 mm, 5 mm, 8 mm, 9 mm, 10 mm, etc., and the width of the upper waist-shaped hole 144 is equal to or slightly larger than the diameter of the upper fastening screw 16.
The upper support 14 is provided with an upper convex portion 146, the upper convex portion 146 is arc-shaped, and the upper convex portion 146 is used for pressing the connection between the tab 26 and the cell main body 22. The tab 26 is formed by a plurality of conductive sheets extending from the cell main body 22 and then stacked, and the thickness of the cell main body 22 is much greater than that of the tab 26, so that a step may occur at the connection position of the tab 26 and the cell main body 22, and the tab 26 may form a wrinkle at this position. When the upper workbench 13 and the upper workbench 13 are covered, the arc-shaped upper convex part 146 extrudes the joint of the tab 26 and the cell main body 22, so that the tab 26 is smoothed out, and the tab 26 is prevented from being wrinkled.
The radian of the upper convex portion 146 can be controlled to be between 0.2 pi-pi, such as 0.2 pi, 0.4 pi, 0.5 pi, 0.8 pi, 0.9 pi, etc.
The material of the upper supporting member 14 includes teflon-plated steel-aluminum alloy, Polyurethane (PU), polymethyl methacrylate (PMMA), or polypropylene (PP). The material is hard and non-metallic, and the upper support member 14 made of the material can effectively reduce granulation after welding of the tab 26.
The clamp 10 further includes an upper spring plate, in which the upper fastening screw 16 penetrates, and the upper spring plate is clamped between the upper fastening screw 16 and the upper support 14.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a be used for lithium cell ultrasonic bonding's anchor clamps, the lithium cell includes electric core main part and the screening glass, utmost point ear and the pin that connect gradually, utmost point ear with electric core main part connects its characterized in that:
the lower workbench is used for placing a lithium battery;
the lower supporting piece is connected with the lower workbench and is used for supporting one side of the lug;
the upper workbench is used for covering the lower workbench;
the upper supporting piece is connected with the upper workbench, a through hole is formed in the upper supporting piece, the upper supporting piece is used for pressing the upper workbench and the lower workbench to cover the opposite side of the lug, and the through hole is used for limiting the protection plate.
2. The clamp of claim 1, wherein: the clamp further comprises a lower fastening screw, a lower waist-shaped hole is formed in the lower support, the lower fastening screw penetrates through the lower waist-shaped hole and is connected with the lower workbench, and the lower waist-shaped hole is used for adjusting the position of the lower support relative to the lug.
3. The clamp of claim 2, wherein: the ratio of the length of the lower waist-shaped hole to the length of the tab is 0.5 to 1.
4. The clamp of claim 1, wherein: the lower supporting piece is provided with a lower convex part which is arc-shaped, and the lower convex part is used for extruding the joint of the lug and the battery cell main body.
5. The clamp of claim 1, wherein: the clamp further comprises an upper fastening screw, an upper waist-shaped hole is formed in the upper supporting piece, the upper fastening screw penetrates through the upper waist-shaped hole and is connected with the upper workbench, and the upper waist-shaped hole is used for adjusting the position of the upper supporting piece relative to the lug.
6. The clamp of claim 5, wherein: the ratio of the length of the upper waist-shaped hole to the length of the tab is 0.5 to 1.
7. The clamp of claim 1, wherein: the upper supporting piece is provided with an upper convex part which is arc-shaped and is used for extruding the joint of the tab and the battery cell main body.
8. The clamp of claim 1, wherein: and a chamfer is arranged at the edge of the through hole, which is far away from the lower workbench.
9. The clamp of claim 1, wherein:
the lower supporting piece is made of steel-aluminum alloy sprayed with Teflon, polyurethane material, organic glass or polypropylene.
10. The clamp of claim 1, wherein:
the upper supporting piece is made of steel-aluminum alloy, polyurethane material, organic glass or polypropylene, and the steel-aluminum alloy is sprayed with Teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020542418.6U CN212398480U (en) | 2020-04-13 | 2020-04-13 | Clamp for ultrasonic welding of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020542418.6U CN212398480U (en) | 2020-04-13 | 2020-04-13 | Clamp for ultrasonic welding of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212398480U true CN212398480U (en) | 2021-01-26 |
Family
ID=74370970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020542418.6U Active CN212398480U (en) | 2020-04-13 | 2020-04-13 | Clamp for ultrasonic welding of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212398480U (en) |
-
2020
- 2020-04-13 CN CN202020542418.6U patent/CN212398480U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208014793U (en) | Connecting elements and rechargeable battery | |
| CN204748105U (en) | Walk an adjustable jigs thread for lathe | |
| CN208913389U (en) | Be flexible coupling cover board fixed-position welding device | |
| CN212398480U (en) | Clamp for ultrasonic welding of lithium battery | |
| CN109148938A (en) | A kind of welding method and battery of battery | |
| CN111933883A (en) | Adapter sheet for high-capacity battery and preparation method thereof | |
| CN209936227U (en) | Full utmost point ear battery ultrasonic welding is with anchor clamps | |
| CN215824656U (en) | Welding auxiliary tool for shot blasting machine protective cover | |
| CN210099213U (en) | Aluminum-shell battery positive and negative electrode lug synchronous welding equipment | |
| CN206849503U (en) | A kind of nuclear fuel assembly, location grid and band | |
| CN210272523U (en) | Welding structure of tab and pole piece | |
| CN209935598U (en) | Metal clad sheet's back structure of borduring of bending | |
| CN204771347U (en) | Aluminum hull power battery welds apron anchor clamps | |
| CN209896157U (en) | Utmost point post connection structure and electric core group of electric core group | |
| CN215869693U (en) | Battery cell connecting structure and battery module | |
| CN205888383U (en) | Flexible backplate that keeps off of laser welding seam tracking system | |
| CN208358017U (en) | A kind of lithium ion battery ultrasonic metal spot-welding tab frock clamp | |
| CN215846464U (en) | Welding head structure | |
| CN216758717U (en) | Lithium battery welding clamp | |
| CN205571718U (en) | Laser cladding welding set of a full aluminium back of body solar cell back of body utmost point | |
| CN212443899U (en) | Flexible connection welding fixture | |
| CN219664801U (en) | Die for bending iron cabinet | |
| CN217253573U (en) | Copper, titanium composite sheet explosive welding structure | |
| CN217515631U (en) | Compatible quick-changing tray | |
| CN209232891U (en) | A kind of pole plate replacement fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |