CN220881095U - Welding fixture for lithium battery cover plate and battery cell connecting sheet - Google Patents
Welding fixture for lithium battery cover plate and battery cell connecting sheet Download PDFInfo
- Publication number
- CN220881095U CN220881095U CN202321825710.9U CN202321825710U CN220881095U CN 220881095 U CN220881095 U CN 220881095U CN 202321825710 U CN202321825710 U CN 202321825710U CN 220881095 U CN220881095 U CN 220881095U
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- Prior art keywords
- cover plate
- plate
- groove
- baffle
- battery cell
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- 238000003466 welding Methods 0.000 title claims abstract description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000002893 slag Substances 0.000 abstract description 7
- 238000004804 winding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a welding fixture for a lithium battery cover plate and a battery cell connecting sheet, which comprises a bottom plate, wherein the lower end of the bottom plate is provided with a bracket, and the bottom plate is provided with: the cover plate groove is used for placing cover plates with various specifications; the two battery cell fixing assemblies are used for fixing battery cells and are respectively arranged at two sides of the cover plate groove; the soft baffle is arranged between the cover plate groove and the battery cell fixing assembly, a gap is formed between the lower end of the soft baffle and the bottom plate, and the connecting sheet at the end part of the battery cell can pass through the gap to be in contact with the cover plate. Therefore, the compatibility of the fixture can be improved, and the cost input of the welding fixture can be effectively reduced. On the other hand, through setting up soft baffle in apron groove both sides, can keep off the welding slag in apron groove one side, avoid the welding slag to get into the electric core in the apron welding process, lead to the problem of electric core short circuit.
Description
Technical Field
The utility model relates to the technical field of battery tool clamps, in particular to a welding clamp for a lithium battery cover plate and a battery cell connecting sheet.
Background
In the manufacturing and assembling process of the lithium battery, the welding process of the battery cover plate and the battery core connecting sheet is quite important, and specifically, the connecting sheet connecting the two winding cores is welded with the cover plate so as to facilitate the subsequent core-closing and shell-entering process.
In order to ensure that the laser welding can accurately weld the connecting sheet and the cover plate, a tooling fixture is required to fix the winding core and the cover plate. However, the cover plate welding fixture used at present is matched with a corresponding lithium battery, namely, each set of fixture can only be used for fixing a lithium battery of one type, but in the whole development and production period of the lithium battery, the lithium battery can be iterated continuously, and the size and the cover plate specification of the lithium battery need to be changed continuously, so that the fixture used for fixing the lithium battery in the cover plate welding process needs to be reprocessed along with the change of the lithium battery, the material cost input of the fixture can be increased, the processing period of the lithium battery welding process can be prolonged, and the production efficiency of the lithium battery can be reduced. Meanwhile, a large amount of welding slag generated during welding of the cover plate easily enters the winding core, and the diaphragm is punctured to cause short circuit of the battery core.
Disclosure of utility model
In order to solve the technical problems in the background technology, the utility model provides a welding fixture for a lithium battery cover plate and a battery cell connecting sheet.
The utility model provides a welding fixture for a lithium battery cover plate and a battery cell connecting sheet, which comprises a bottom plate, wherein the lower end of the bottom plate is provided with a bracket, and the bottom plate is provided with:
the cover plate groove is used for placing cover plates with various specifications;
the two battery cell fixing assemblies are used for fixing battery cells and are respectively arranged at two sides of the cover plate groove;
The soft baffle is arranged between the cover plate groove and the battery cell fixing assembly, a gap is formed between the lower end of the soft baffle and the bottom plate, and the connecting sheet at the end part of the battery cell can pass through the gap to be in contact with the cover plate.
Preferably, the electric core fixing component comprises a first baffle plate and a second baffle plate which are connected with the bottom plate in a sliding mode through a sliding structure and are perpendicular to the bottom plate, a battery electric core placing area with adjustable width is formed between the first baffle plate and the second baffle plate in a surrounding mode, the first baffle plate and the second baffle plate are arranged in parallel, the distance between the first baffle plate and the second baffle plate is adjustable through the sliding structure, and the first baffle plate and the second baffle plate can be mutually close to or far away from each other to clamp or loosen the battery electric core.
Preferably, the sliding structure includes:
the guide rail is arranged on the bottom plate, and the extending direction of the guide rail is parallel to the length direction of the cover plate groove;
and the sliding column penetrates through the fixing holes and stretches into the guide rail to slide.
Preferably, a plurality of telescopic columns are arranged in the cover plate groove, a bearing plate is fixed at the position below the bottom plate corresponding to the cover plate groove, and the lower ends of the telescopic columns penetrate through the through holes and are fixed on the bearing plate through elastic pieces.
Preferably, a pressing mechanism for fixing the cover plate is further included.
Preferably, the pressing mechanism includes:
the pressure head plate is positioned above the cover plate groove and is provided with a welding hole, and the welding hole can be used for laser to pass through to perform cover plate welding operation on the lithium battery;
And the limiting structure is fixed on the side part of the bottom plate corresponding to the cover plate groove and is used for driving the pressure head plate to be pressed down and fixed or released upwards at the target position.
Preferably, the limit structure comprises a limit seat and a support seat vertically arranged above the limit seat, a T-shaped part is rotatably arranged on one lifting lug of the support seat, a connecting rod is rotatably arranged on the other lifting lug of the support seat, a handle is rotatably arranged between the T-shaped part and the connecting rod, the lower end of the free end of the T-shaped part is connected with the pressure head plate, the relative positions of the T-shaped part and the pressure head plate are adjustable, and the pressure head plate can be driven to press down or lift up when the handle is rotated up and down.
Preferably, the soft baffle is set to rectangular structure, the bottom plates at two ends of the soft baffle are all provided with fixing columns, the inner sides of the fixing columns are provided with fixing grooves extending along the vertical direction, and the end parts of the soft baffle extend into the fixing grooves to be fixed and can move up and down in the fixing grooves.
Preferably, the guide rail is provided with an oblong elliptical stepped structure, the guide rail comprises a small oblong elliptical groove at the upper part and a large oblong elliptical groove at the lower part, the sliding column can slide along the small oblong elliptical groove, an external thread is arranged on the sliding column, the lower end of the sliding column is also connected with a fastening nut in a threaded manner, and the fastening nut is positioned in the large oblong elliptical groove, and when the fastening nut is screwed down, the sliding column is fixed in the small oblong elliptical groove; the spool is capable of sliding along the small oblong elliptical groove when the fastening nut is loosened.
In summary, the utility model has the following effects: the first baffle and the second baffle with the adjustable positions are arranged, so that the two baffles enclose a battery cell placement area with the adjustable width, and the battery cell placement area can be compatible with lithium battery roll cores with different model sizes; the apron groove is set up in the middle of the bottom plate, and when the apron was inlayed, flexible post was sunk and fixed apron, can place different model apron to carry out apron welding operation to the lithium cell of various models. The pressing mechanism is used for pressing the battery cover plate and the winding core; therefore, the compatibility of the fixture can be improved, and the cost input of the welding fixture can be effectively reduced. On the other hand, through setting up soft baffle in apron groove both sides, can keep off the welding slag in apron groove one side, avoid the welding slag to get into the electric core in the apron welding process, lead to the problem of electric core short circuit.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Fig. 1 is a schematic diagram of the whole structure of a welding fixture for a lithium battery cover plate and a battery cell connecting sheet according to an embodiment of the utility model;
FIG. 2 is an enlarged schematic view of the part (pressing mechanism) at A in FIG. 1;
Fig. 3 is a bottom view of a guide rail according to an embodiment of the present utility model.
In the figure:
1 bracket, 2 bottom plate, 3 apron groove, 4 soft baffle, 5 first baffle, 6 second baffle, 7 guide rail, 8 diaphragm, 9 telescopic column, 10 pressure head board, 11 welding hole, 12 spacing seat, 13 supporting seat, 14T spare, 15 connecting rod, 16 handle, 17 fastening nut, 18 little oval groove, 19 great oval groove.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
As shown in fig. 1-3, the welding fixture for a lithium battery cover plate and a battery core connecting sheet provided in this embodiment includes a bottom plate 2 with a bracket 1 at the lower end, and the bottom plate 2 is provided with:
A cover plate groove 3 for placing cover plates of various specifications;
Further, a plurality of telescopic columns 9 are arranged in the cover plate groove 3, a bearing plate is fixed below the bottom plate 2 at a position corresponding to the cover plate groove 3, and the lower ends of the telescopic columns 9 penetrate through the through holes and are fixed on the bearing plate (not shown in the figure) through elastic pieces. Further, a pressing mechanism for fixing the cover plate is also included.
Specifically, the elastic member may be a spring, and when the cover plate is inserted into the cover plate groove 3, the telescopic column 9 is depressed, and the spring is compressed at this time, and the cover plate is fixed in the cover plate groove 3 by the pressing mechanism, and when the cover plate is completely welded and taken out, the telescopic column 9 is restored due to the restoring force of the spring.
The two battery cell fixing assemblies are used for fixing battery cells and are respectively arranged at two sides of the cover plate groove 3;
The soft baffle 4 is arranged between the cover plate groove 3 and the battery cell fixing component, a gap is arranged between the lower end of the soft baffle and the bottom plate 2, and a connecting sheet at the end part of the battery cell can pass through the gap to be in contact with the cover plate.
Specifically, the soft baffle 4 is set to a rectangular structure, the bottom plates 2 at two ends of the soft baffle 4 are all provided with fixing columns, the inner sides of the fixing columns are provided with fixing grooves extending along the vertical direction, the end parts of the soft baffle 4 extend into the fixing grooves to be fixed and can move up and down in the fixing grooves, gaps between the soft baffle 4 and the bottom plates 2 can be adjusted, and it is required to explain that the soft baffle 4 can be made of silica gel or the like, and the soft baffle is specifically determined according to the situation.
Further, the battery cell fixing assembly comprises a first baffle plate 5 and a second baffle plate 6 which are connected with the bottom plate 2 in a sliding mode through a sliding structure and are perpendicular to the bottom plate 2, a battery cell placing area with adjustable width is formed between the first baffle plate 5 and the second baffle plate 6 in a surrounding mode, the distance between the first baffle plate 5 and the second baffle plate 6 which are arranged in parallel is adjustable through the sliding structure, and the first baffle plate 5 and the second baffle plate can be mutually close to or far away from each other to clamp or loosen a battery cell.
Therefore, the first baffle 5 and the second baffle 6 with the adjustable positions are arranged, so that the two baffles enclose a battery cell placement area with the adjustable width, and the battery cell placement area can be compatible with lithium battery roll cores with different models and sizes; the cover plate groove 3 is formed in the middle of the bottom plate 2, when the cover plate is embedded, the telescopic column 9 sinks and fixes the cover plate, and cover plates of different types can be placed, so that cover plate welding operation can be conducted on lithium batteries of various types. The pressing mechanism is used for pressing the battery cover plate and the winding core; therefore, the compatibility of the fixture can be improved, and the cost input of the welding fixture can be effectively reduced. On the other hand, through setting up soft baffle 4 in apron groove 3 both sides, can keep off the welding slag in apron groove 3 one side, avoid the welding slag to get into the electric core in the apron welding process, lead to the problem of electric core short circuit.
Further, as shown in fig. 1 and 3, the sliding structure includes:
The guide rail 7 is arranged on the bottom plate 2, and the extending direction of the guide rail 7 is parallel to the length direction of the cover plate groove 3;
And the outer sides of the lower ends of the first baffle plate 5 and the second baffle plate 6 are respectively provided with a transverse plate 8 vertical to the first baffle plate, the transverse plates 8 are provided with fixing holes, and the sliding columns penetrate through the fixing holes and extend into the guide rails 7 to slide.
Specifically, as shown in fig. 3, the guide rail 7 is provided with an oblong elliptical step structure, the guide rail 7 comprises a small oblong elliptical groove 18 at the upper part and a large oblong elliptical groove 19 at the lower part, a sliding column can slide along the small oblong elliptical groove 18, an external thread is arranged on the sliding column, a fastening nut 17 is also connected at the lower end of the sliding column in a threaded manner, the fastening nut 17 is positioned in the large oblong elliptical groove 19, and when the fastening nut 17 is screwed, the sliding column is fixed in the small oblong elliptical groove 18; when the tightening nut 17 is loosened, the spool can slide along the small oblong oval groove 18.
In this embodiment, as shown in fig. 2, the pressing mechanism includes:
The pressure head plate 10 is positioned above the cover plate groove 3, and is provided with a welding hole 11, wherein the welding hole 11 can be used for laser to pass through to perform cover plate welding operation on the lithium battery;
And the limiting structure is fixed on the side part of the bottom plate 2 at the position corresponding to the cover plate groove 3 and is used for driving the pressure head plate 10 to be pressed down and fixed or released upwards at the target position.
Specifically, limit structure includes spacing seat 12, install the supporting seat 13 in spacing seat 12 top perpendicularly, rotate on one lug of supporting seat 13 and install T type spare 14, rotate on another lug of supporting seat 13 and install connecting rod 15, rotate between T type spare 14 and connecting rod 15 and install handle 16, the free end lower extreme of T type spare 14 is connected with pressure head board 10, and the relative position of T type spare 14 and pressure head board 10 is adjustable, specifically, can set up rectangular hole on the T type spare 14, set up threaded hole on the pressure head board 10, pass rectangular hole through fastening screw and fix at threaded hole, adjust the relative position of T type spare 14 and pressure head board 10 through rectangular hole.
The pressing head plate 10 can be driven to press down or lift up when the handle 16 is rotated up and down. Thus, in use, the T-shaped piece 14 can be adjusted through the handle 16 to drive the pressure head plate 10 to move up and down, so that the pressure head plate 10 is driven to press or loosen the cover plate and the connecting sheet. Simple structure, simple operation.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a welding jig of lithium cell apron and electric core connection piece, is equipped with the bottom plate of support including the lower extreme, its characterized in that, be equipped with on the bottom plate:
the cover plate groove is used for placing cover plates with various specifications;
The battery cell fixing assemblies are used for fixing battery cells and are respectively arranged on two sides of the cover plate groove, each battery cell fixing assembly comprises a first baffle plate and a second baffle plate which are connected with the bottom plate in a sliding mode through a sliding structure and are perpendicular to the bottom plate, a battery cell placing area with adjustable width is formed between the first baffle plate and the second baffle plate in a surrounding mode, the first baffle plate and the second baffle plate are arranged in parallel, the distance between the first baffle plate and the second baffle plate is adjustable through the sliding structure, and the first baffle plate and the second baffle plate can be mutually close to or far away from each other to clamp or loosen the battery cells;
The soft baffle is arranged between the cover plate groove and the battery cell fixing assembly, a gap is formed between the lower end of the soft baffle and the bottom plate, and the connecting sheet at the end part of the battery cell can pass through the gap to be in contact with the cover plate.
2. The welding jig of lithium battery cover plate and cell connection sheet of claim 1, wherein the sliding structure comprises:
the guide rail is arranged on the bottom plate, and the extending direction of the guide rail is parallel to the length direction of the cover plate groove;
and the sliding column penetrates through the fixing holes and stretches into the guide rail to slide.
3. The welding fixture for the lithium battery cover plate and the battery cell connecting sheet according to claim 1, wherein a plurality of telescopic columns are arranged in the cover plate groove, a bearing plate is fixed at the position below the bottom plate corresponding to the cover plate groove, and the lower ends of the telescopic columns penetrate through the through holes and are fixed on the bearing plate through elastic pieces.
4. The welding jig for a lithium battery cover plate and a cell connection sheet according to claim 3, further comprising a pressing mechanism for fixing the cover plate.
5. The welding jig for a lithium battery cover plate and a cell connection sheet according to claim 4, wherein the pressing mechanism comprises:
the pressure head plate is positioned above the cover plate groove and is provided with a welding hole, and the welding hole can be used for laser to pass through to perform cover plate welding operation on the lithium battery;
And the limiting structure is fixed on the side part of the bottom plate corresponding to the cover plate groove and is used for driving the pressure head plate to be pressed down and fixed or released upwards at the target position.
6. The welding fixture for the lithium battery cover plate and the battery cell connecting sheet according to claim 5, wherein the limiting structure comprises a limiting seat and a supporting seat vertically arranged above the limiting seat, a T-shaped part is rotatably arranged on one lifting lug of the supporting seat, a connecting rod is rotatably arranged on the other lifting lug of the supporting seat, a handle is rotatably arranged between the T-shaped part and the connecting rod, the lower end of the free end of the T-shaped part is connected with the pressure head plate, the relative positions of the T-shaped part and the pressure head plate are adjustable, and the pressure head plate can be driven to be pressed down or lifted up when the handle is rotated up and down.
7. The welding fixture for the lithium battery cover plate and the battery cell connecting piece according to claim 1, wherein the soft baffle is of a rectangular structure, fixing columns are arranged on the bottom plates at two ends of the soft baffle, fixing grooves extending in the vertical direction are formed in the inner sides of the fixing columns, and the end portions of the soft baffle extend into the fixing grooves to be fixed and can move up and down in the fixing grooves.
8. The welding fixture for the lithium battery cover plate and the battery cell connecting sheet according to claim 2, wherein the guide rail is of an oblong elliptical stepped structure, the guide rail comprises an upper small oblong elliptical groove and a lower large oblong elliptical groove, the sliding column can slide along the small oblong elliptical groove, an external thread is arranged on the sliding column, a fastening nut is further connected to the lower end of the sliding column in a threaded manner, the fastening nut is positioned in the large oblong elliptical groove, and the sliding column is fixed in the small oblong elliptical groove when the fastening nut is screwed; the spool is capable of sliding along the small oblong elliptical groove when the fastening nut is loosened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825710.9U CN220881095U (en) | 2023-07-12 | 2023-07-12 | Welding fixture for lithium battery cover plate and battery cell connecting sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825710.9U CN220881095U (en) | 2023-07-12 | 2023-07-12 | Welding fixture for lithium battery cover plate and battery cell connecting sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220881095U true CN220881095U (en) | 2024-05-03 |
Family
ID=90873007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321825710.9U Active CN220881095U (en) | 2023-07-12 | 2023-07-12 | Welding fixture for lithium battery cover plate and battery cell connecting sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220881095U (en) |
-
2023
- 2023-07-12 CN CN202321825710.9U patent/CN220881095U/en active Active
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