CN219582041U - Welding fixture - Google Patents
Welding fixture Download PDFInfo
- Publication number
- CN219582041U CN219582041U CN202320444736.2U CN202320444736U CN219582041U CN 219582041 U CN219582041 U CN 219582041U CN 202320444736 U CN202320444736 U CN 202320444736U CN 219582041 U CN219582041 U CN 219582041U
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- CN
- China
- Prior art keywords
- pressing
- area
- welding
- pressure head
- pressure
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a welding tool, which comprises: the pressure head is provided with a pressing surface for pressing the tab and the busbar, one surface of the pressure head, which is away from the pressing surface, is provided with a first area and a second area which are opposite, and the first area and the second area are arranged at two ends close to the pressure head along a first direction; the first pressing component and the second pressing component are arranged on the pressure head and used for providing acting force for pressing the tab and the bus bar, and the first pressing component and the second pressing component are respectively arranged in the first area and the second area; the first direction is perpendicular to the extending direction of the lug and the bus bar welding edge.
Description
Technical Field
The utility model relates to the field of secondary batteries, in particular to a welding tool.
Background
The battery pack is generally composed of a plurality of single battery cells, the single battery cells are provided with lugs, the bus bar is used as a common conductive connecting piece and needs to be electrically connected with the lugs on the plurality of single battery cells, so that current collection is realized, and the stable operation of the battery pack is ensured.
In the prior art, the connection between the tab and the busbar is usually realized by inserting the tab into a slot of the busbar and then using laser welding; in the laser welding process of the electrode lug and the busbar, the electrode lug and the busbar are not tightly connected, the welding strength is insufficient, and the like, so that the conditions of cold joint and hole explosion can be caused during the welding of the electrode lug of the battery core, and the welding quality and the welding strength of the battery core are affected, and the stable performance of the battery pack is hindered.
Disclosure of Invention
The utility model aims to overcome the defects that the performance of a battery pack is influenced by the fact that cold joint occurs between a tab and a busbar in the prior art, and provides a welding tool.
The utility model solves the technical problems by the following technical scheme:
the utility model provides a welding tool, which comprises:
the pressure head is provided with a pressing surface for pressing the tab and the busbar, one surface of the pressure head, which is away from the pressing surface, is provided with a first area and a second area which are opposite, and the first area and the second area are arranged at two ends close to the pressure head along a first direction;
the first pressing component and the second pressing component are arranged on the pressure head and used for providing acting force for pressing the tab and the bus bar, and the first pressing component and the second pressing component are respectively arranged in the first area and the second area;
the first direction is perpendicular to the extending direction of the lug and the bus bar welding edge.
Preferably, the welding fixture further comprises a third pressing component and a fourth pressing component, wherein one surface of the pressing head, which is away from the pressing surface, is further provided with a third area and a fourth area which are opposite to each other, the third area and the fourth area are arranged at the other two ends, which are close to the pressing head, along a direction perpendicular to the first direction, and the third pressing component and the fourth pressing component are respectively arranged in the third area and the fourth area; and/or the number of the groups of groups,
the welding tool is used for welding the lug and the busbar.
Preferably, the press head is rectangular, the first region and the second region are arranged along the short side direction of the press head, and the third region and the fourth region are arranged along the long side direction of the press head.
Preferably, the first pressing component and the second pressing component are connected with the force application point of the pressure head to form a first connecting line, the third pressing component and the fourth pressing component are connected with the force application point of the pressure head to form a second connecting line, and the first connecting line is perpendicular to the second connecting line.
Preferably, the welding fixture further comprises a mounting seat, the first pressing component, the second pressing component, the third pressing component and the fourth pressing component comprise guide rods and pressure adjusting structures, one ends of the guide rods are fixed with the mounting seat, the other ends of the guide rods are in sliding connection with the pressure heads, the pressure adjusting structures are sleeved on the guide rods, and the pressure adjusting structures are used for exerting pressure on the pressure heads.
Preferably, the pressure adjusting structure comprises a moving adjusting piece and an elastic piece, one end of the elastic piece is contacted with the moving adjusting piece, and the other end of the elastic piece is contacted with the pressure head.
Preferably, the inner peripheral surface of the movement adjusting member is connected with the outer peripheral surface of the guide rod in a threaded fit manner.
Preferably, the outer circumferential surface of the guide rod is trapezoidal threads.
Preferably, the pressure adjusting structure further comprises a pressing piece, the pressing piece is slidably arranged on the guide rod, and at least one end of the elastic piece is provided with the pressing piece.
Preferably, the elastic member is a spring.
The utility model has the positive progress effects that:
the welding tool is characterized in that the pressing component is arranged in a first area and a second area opposite to one surface of the pressing head, which is away from the pressing surface, so that the pressing component provides acting force for pressing the electrode lugs and the bus bar; and the first area and the second area of welding frock are along first direction setting at the both ends that are close to the pressure head, and the extending direction on first direction perpendicular to utmost point ear and busbar welding limit realizes pressing the subassembly around the welding limit with pressing, guarantees that the utmost point ear and the busbar that the pressure head pressed compress tightly, reduces the condition of rosin joint, popping hole when welding, promotes the stability of battery work.
Drawings
Fig. 1 is a schematic structural diagram of a welding tool for a busbar and a tab according to a preferred embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a welding tool according to a preferred embodiment of the utility model.
Fig. 3 is a front view of a welding tool according to a preferred embodiment of the present utility model, excluding a mounting base.
Fig. 4 is a top view of a welding tool according to a preferred embodiment of the present utility model, excluding the mounting base.
Reference numerals illustrate:
tab 100
Bus bar 200
Pressure head 1
First region 101
Second region 102
Third region 103
Fourth region 104
First pressing assembly 2
Second pressing component 3
Third pressing component 4
Fourth pressing component 5
Guide bar 6
Pressure regulating structure 7
Moving adjusting member 8
Elastic member 9
Pressing piece 10
Mounting base 11
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
As shown in fig. 1 and 3, this embodiment provides a welding tool, including: the pressure head 1 is provided with a pressing surface for pressing the lug 100 and the busbar 200, one surface of the pressure head 1 facing away from the pressing surface is provided with a first area 101 and a second area 102 which are opposite, and the first area 101 and the second area 102 are arranged near two ends of the pressure head 1 along a first direction; the first pressing component 2 and the second pressing component 3 are arranged on the pressure head 1 and used for providing acting force for pressing the tab 100 and the busbar 200, and the first pressing component 2 and the second pressing component 3 are respectively arranged in the first area 101 and the second area 102; the first direction is perpendicular to the extending direction of the welding edges of the tab 100 and the bus bar 200.
The welding tool is characterized in that the pressing assembly is arranged on the first area 101 and the second area 102 opposite to the surface, facing away from the pressing surface, of the pressing head 1, so that the pressing assembly provides acting force for pressing the tab 100 and the busbar 200; and the first area 101 and the second area 102 are arranged at two ends close to the pressure head 1 along the first direction, the first direction is perpendicular to the extending direction of the welding edge of the tab 100 and the busbar 200, the pressing assembly is correspondingly pressed around the welding edge, the tab 100 pressed by the pressure head 1 is ensured to be pressed against the busbar 200, the conditions of cold joint and hole explosion during welding are reduced, and the working stability of the battery is improved. In the present embodiment, the first region 101 and the second region 102 are provided with four pressing members in total.
As shown in fig. 1 and 3, the welding fixture further comprises a third pressing component 4 and a fourth pressing component 5, one surface of the pressing head 1, which is away from the pressing surface, is further provided with a third area 103 and a fourth area 104 which are opposite, the third area 103 and the fourth area 104 are arranged at the other two ends, which are close to the pressing head 1, along a direction perpendicular to the first direction, and the third pressing component 4 and the fourth pressing component 5 are respectively arranged in the third area 103 and the fourth area 104; and/or the welding fixture is used for welding the tab 100 and the busbar 200. The indenter 1 is rectangular parallelepiped, the first region 101 and the second region 102 are arranged along the short side direction of the indenter 1, and the third region 103 and the fourth region 104 are arranged along the long side direction of the indenter 1. The first pressing component 2 and the second pressing component 3 are connected with the force application point of the pressure head 1 to form a first connecting line, the third pressing component 4 and the fourth pressing component 5 are connected with the force application point of the pressure head 1 to form a second connecting line, and the first connecting line is perpendicular to the second connecting line.
The third area 103 and the fourth area 104 are also provided with a third pressing component 4 and a fourth pressing component 5, so that four pressing components are pressed on the pressing head 1, acting force can be applied to four positions of the pressing head 1, the periphery of the welding edge of the tab 100 and the busbar 200 is further pressed, the problem that the gap between the tab 100 and the environment area of the busbar 200 is overlarge is solved, the first pressing component 2 and the second pressing component 3 are connected with the application point of the pressing head 1 to form a first connecting line, the third pressing component 4 and the fourth pressing component 5 are connected with the application point of the pressing head 1 to form a second connecting line, the first connecting line is perpendicular to the second connecting line, the distribution of the pressing components on the pressing head 1 is more uniform, and the stress of the tab 100 and the busbar 200 is also more uniform.
As shown in fig. 1 and 2, the welding fixture further comprises a mounting seat 11, the first pressing component 2, the second pressing component 3, the third pressing component 4 and the fourth pressing component 5 comprise a guide rod 6 and a pressure adjusting structure 7, one end of the guide rod 6 is fixed with the mounting seat 11, the other end of the guide rod 6 is in sliding connection with the pressure head 1, the pressure adjusting structure 7 is sleeved on the guide rod 6, and the pressure adjusting structure 7 is used for applying pressure to the pressure head 1.
Wherein the pressure adjusting structure 7 is arranged so that each pressing assembly 2 can adjust the pressure to the pressing head 1; fix guide bar 6 on mount pad 11, the other end and the pressure head 1 sliding connection of guide bar 6 simultaneously, with pressure adjusting structure 7 cover on guide bar 6, pressure adjusting structure 7 can exert effort to pressure head 1 on guide bar 6 for whole frock can be more stable regulation pressure.
As shown in fig. 4, the pressure adjusting structure 7 includes a movement adjusting member 8 and an elastic member 9, one end of the elastic member 9 is in contact with the movement adjusting member 8, and the other end of the elastic member 9 is in contact with the indenter 1. Specifically, the inner peripheral surface of the movement adjuster 8 is connected to the outer peripheral surface of the guide rod 6 by screw-fit. The outer circumferential surface of the guide rod 6 is trapezoidal threads.
Wherein, pressure adjusting structure 7 includes removal regulating part 8 and elastic component 9, sets up elastic component 9 and enables removal regulating part 8 more nimble regulation to the pressure of pressure head 1 of pressing component 2. Wherein, remove the inner peripheral face of regulating part 8 and the outer peripheral face of guide bar 6 through threaded connection, make and remove regulating part 8 and can utilize the pivoted mode to realize carrying out the displacement along the axial direction of guide bar 6, and can stabilize in same position when not rotating, realize pressing the pressure regulation of subassembly 2 to pressure head 1, the simple structure of regulation easily realizes, and the regulation effect is good. The outer peripheral surface of the guide rod 6 is trapezoidal threads, so that the movable adjusting piece 8 can be more stably stopped at the same position when stopping rotating, the pressure stability when stopping rotating is ensured, and the pressure adjusting effect is better.
As shown in fig. 4, the pressure adjusting structure 7 further includes a pressing member 10, the pressing member 10 is slidably disposed on the guide rod 6, and at least one end of the elastic member 9 is provided with the pressing member 10. In the present embodiment, two pressing pieces 10 are provided, and the two pressing pieces 10 are located at both ends of the elastic member 9, respectively. Specifically, the elastic member 9 is a spring.
Wherein, pressure adjusting structure 7 still includes the presser 10, and the setting of presser 10 can play the effect to elastic component 9 protection when elastic component 9 is pressed, and improves the stability and the accuracy of elastic component 9 applied pressure direction. When the elastic piece 9 is a spring, the cost is low, the elastic piece is easy to obtain and has good elasticity, and the effect of using the spring at all times is better when the pressure is regulated.
Claims (10)
1. Welding frock, its characterized in that includes:
the pressure head is provided with a pressing surface for pressing the tab and the busbar, one surface of the pressure head, which is away from the pressing surface, is provided with a first area and a second area which are opposite, and the first area and the second area are arranged at two ends close to the pressure head along a first direction;
the first pressing component and the second pressing component are arranged on the pressure head and used for providing acting force for pressing the tab and the bus bar, and the first pressing component and the second pressing component are respectively arranged in the first area and the second area;
the first direction is perpendicular to the extending direction of the lug and the bus bar welding edge.
2. The welding tooling of claim 1, further comprising a third pressing assembly and a fourth pressing assembly, wherein a face of the ram facing away from the pressing surface further has opposing third and fourth regions disposed adjacent the other two ends of the ram along a direction perpendicular to the first direction, the third and fourth pressing assemblies being disposed in the third and fourth regions, respectively; and/or the number of the groups of groups,
the welding tool is used for welding the lug and the busbar.
3. The welding fixture of claim 2, wherein the ram is rectangular, the first and second regions are disposed along a short side direction of the ram, and the third and fourth regions are disposed along a long side direction of the ram.
4. The welding fixture of claim 2, wherein the first pressing assembly and the second pressing assembly are connected to a point of application of the ram to form a first connection line, the third pressing assembly and the fourth pressing assembly are connected to a point of application of the ram to form a second connection line, and the first connection line is perpendicular to the second connection line.
5. The welding tooling of claim 2, further comprising a mounting base, wherein the first pressing assembly, the second pressing assembly, the third pressing assembly, and the fourth pressing assembly each comprise a guide rod and a pressure adjusting structure, one end of the guide rod is fixed to the mounting base, the other end of the guide rod is slidably connected to the pressure head, the pressure adjusting structure is sleeved on the guide rod, and the pressure adjusting structure is used for applying pressure to the pressure head.
6. The welding fixture of claim 5, wherein the pressure adjustment structure comprises a movement adjustment member and an elastic member, one end of the elastic member is in contact with the movement adjustment member, and the other end of the elastic member is in contact with the ram.
7. The welding fixture of claim 6, wherein an inner peripheral surface of the moving adjusting member is connected with an outer peripheral surface of the guide rod by screw-fitting.
8. The welding fixture of claim 7, wherein the guide rod has a trapezoidal thread on an outer circumferential surface.
9. The welding fixture of claim 6, wherein the pressure adjusting structure further comprises a pressing member slidably disposed on the guide rod, and the pressing member is disposed at least one end of the elastic member.
10. The welding fixture of claim 6, wherein the elastic member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320444736.2U CN219582041U (en) | 2023-03-09 | 2023-03-09 | Welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320444736.2U CN219582041U (en) | 2023-03-09 | 2023-03-09 | Welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219582041U true CN219582041U (en) | 2023-08-25 |
Family
ID=87666084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320444736.2U Active CN219582041U (en) | 2023-03-09 | 2023-03-09 | Welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219582041U (en) |
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2023
- 2023-03-09 CN CN202320444736.2U patent/CN219582041U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |