Laser welding clamp for battery tabs

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a laser welding clamp for battery tabs, the laser welding clamp for the battery tabs comprises a press-fit assembly and a bearing base plate, the press-fit assembly comprises a dust collection block, the dust collection block is provided with a dust collection groove and a dust collection hole, the dust collection hole communicates with the dust collection groove, and the bearing base plate is arranged opposite to the press-fit assembly. According to the laser welding clamp for the battery electrode lug, the pressing assembly and the bearing base plate are matched to clamp and fix the battery electrode lug, dust generated in the welding process is sucked back through the dust suction grooves through the dust suction holes, and the problem that in the traditional laser welding process of the electrode lug, a large amount of dust is generated to pollute the environment is solved.

Description

Technical Field

[0001] This application relates to the technical field of new energy batteries, and in particular to a laser welding fixture for battery tabs. Background Art

[0002] In order to meet the increasingly high requirements of the market for battery performance, the foil thickness of battery tabs is continuously increasing. The traditional ultrasonic welding process is a contact welding method, which will cause continuous deformation of the battery tab and the Tab connecting piece during the welding process, resulting in damage to the welded product.

[0003] Therefore, currently, a laser welding process is generally used to weld battery tabs. Laser welding is a non-contact welding method and does not come into contact with the product during the welding process, so it will not cause the product to crack or deform. However, during the traditional laser welding process of tabs, a large amount of dust is generated, polluting the environment. Utility Model Content

[0004] This application provides a laser welding fixture for battery tabs, aiming to solve the problem that a large amount of dust is generated and pollutes the environment during the traditional laser welding process of tabs.

[0005] To solve the above technical problems, this application proposes a laser welding fixture for battery tabs, which includes:

[0006] A pressing component, including a dust suction block, the dust suction block is provided with a dust suction groove and dust suction holes, the dust suction groove runs through the dust suction block, the dust suction holes are communicated with the dust suction groove, and the dust suction holes are externally connected to a dust suction device;

[0007] A bearing backing plate, arranged relative to the pressing component.

[0008] Further, the bearing backing plate is provided with a cooling channel, the cooling channel runs through the bearing backing plate, and the cooling channel is used to introduce coolant or cooling gas.

[0009] Further, the pressing component further includes a welding press head, the welding press head is provided with a first through groove, the first through groove runs through the welding press head, and the first through groove is communicated with the dust suction groove.

[0010] Further, the pressing component further includes a protective gas channel, and the protective gas channel is communicated with the first through groove.

[0011] Further, the laser welding fixture for battery tabs further includes heat dissipation fins, and the heat dissipation fins are connected to the bearing backing plate to facilitate heat dissipation of the bearing backing plate.

[0012] Further, the laser welding fixture for battery tabs further includes a cooling fan, which is installed at a relative interval with respect to the cooling fins.

[0013] Further, the pressing assembly further includes a connecting plate, and both the dust suction block and the welding pressing head are fixed on the connecting plate.

[0014] Further, the connecting plate is provided with a second through groove, which penetrates through the connecting plate, and the second through groove is correspondingly communicated with the dust suction groove.

[0015] Further, the laser welding fixture for battery tabs further includes a first fixing plate. A guide rail is provided on a side of the first fixing plate close to the connecting plate, and a slider is slidably assembled on the guide rail. The connecting plate is connected to the slider.

[0016] Further, the laser welding fixture for battery tabs further includes a quick clamp, and the quick clamp is linked with the connecting plate.

[0017] The beneficial effect of the present application is as follows: In the laser welding fixture for battery tabs provided in the present application, the pressing assembly and the bearing base plate cooperate to clamp and fix the battery tabs. During the welding process, the dust and splashes generated enter the dust suction groove. The dust suction groove is communicated with the dust suction hole, and the dust suction hole is externally connected to a dust suction device to suck back the dust, effectively reducing the impact of the splashed dust during welding on the environment. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0019] Figure 1 is a schematic perspective view of a laser welding fixture for battery tabs according to an embodiment of the present invention;

[0020] Figure 2 is a schematic perspective view of a substrate, a first fixing plate, cooling fins and related parts according to an embodiment of the present invention;

[0021] Figure 3 is an exploded view of a pressing assembly part according to an embodiment of the present invention;

[0022] Figure 4 is a schematic perspective view of a welding pressing head part according to an embodiment of the present invention;

[0023] Figure 5It is a perspective view of the carrier plate part of an embodiment of the present utility model;

[0024] Figure 6 It is an exploded view of the heat dissipation fan and heat dissipation fin parts of an embodiment of the present utility model;

[0025] Figure 7 It is a perspective view of the welding head of an embodiment of the present utility model.

[0026] Explanation of reference numerals: 100, pressing assembly; 110, dust suction block; 111, dust suction groove; 112, dust suction joint; 200, bearing backing plate; 210, cooling channel; 300, welding head; 310, first through groove; 320, first welding plate; 330, second welding plate; 340, pressing strip; 350, shielding gas joint; 351, shielding gas channel; 400, heat dissipation fins; 410, heat dissipation plate; 420, positioning plate; 500, heat dissipation fan; 510, fixing frame; 600, first connecting plate; 610, second through groove; 700, second connecting plate; 800, first fixing plate; 810, guide rail; 811, slider; 820, quick clamp; 900, base plate; 1000, connecting plate. Detailed implementation manners

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] Those skilled in the art of the present technology can understand that unless specifically stated otherwise, the singular forms "a", "an", "the above" and "the" used herein may also include the plural forms. It should be further understood that the term "including" used in the specification of the present application means the presence of features, integers, steps, operations, elements, modules, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any one of the listed items and all combinations of more than one related item.

[0029] Those skilled in the art of the present technology can understand that, unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the general understanding of those of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with their meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as herein.

[0030] As Figure 1 and Figure 5 shown, the present application provides a laser welding fixture for battery tabs. The laser welding fixture for battery tabs includes a pressing component 100 and a bearing backing plate 200. The pressing component 100 includes a dust suction block 110. The dust suction block 110 is provided with a dust suction groove 111 and dust suction holes. The dust suction holes are communicated with the dust suction groove 111. The bearing backing plate 200 is arranged relative to the pressing component.

[0031] In a specific embodiment, the laser welding fixture for battery tabs includes a pressing component 100 and a bearing backing plate 200. The pressing component 100 and the bearing backing plate 200 cooperate with each other to clamp and fix the battery tabs and then perform laser welding. The pressing component 100 includes a dust suction block 110. The dust suction block 110 is in a cuboid shape and is horizontally arranged. A large-area dust suction groove 111 is provided in the dust suction block 110. The dust suction groove 111 vertically penetrates the dust suction block 110 to facilitate the laser to pass through the dust suction block 110 to weld the battery tabs. Dust suction holes are provided on the side of the dust suction block 110. The dust suction holes horizontally penetrate the dust suction block 110, and the dust suction holes are communicated with the dust suction groove 111. The pressing component 100 further includes a dust suction joint 112. The dust suction joint 112 is fixedly assembled at the dust suction hole. The dust suction joint 112 is communicated with the dust suction hole, and the dust suction joint 112 is externally connected to a dust suction device to facilitate sucking back the dust in the dust suction groove 111.

[0032] The bearing backing plate 200 is a rectangular plate. The bearing backing plate 200 is horizontally arranged below the dust suction block 110, and the bearing backing plate 200 is arranged at an interval from the dust suction block 110.

[0033] As Figure 1 shown, the bearing backing plate 200 is provided with a cooling channel 210. The cooling channel 210 penetrates the bearing backing plate 200. The cooling channel 210 is used to introduce a coolant or a cooling gas.

[0034] A cooling channel 210 is provided inside the bearing backing plate 200. The cooling channel 210 penetrates the entire bearing backing plate 200. During the actual working process, an external device injects a flowing coolant or a cooling gas into the cooling channel 210 to facilitate cooling the bearing backing plate 200, and further cooling the battery tabs placed on the bearing backing plate 200 to prevent the tab glue from being scalded.

[0035] As shown Figure 4 in FIG. Figure 4 , the pressing assembly 100 further includes a welding head 300. The welding head 300 is provided with a first through groove 310 which penetrates through the welding head 300, and the first through groove 310 is communicated with the dust suction groove 111.

[0036] In a specific embodiment, the pressing assembly 100 further includes a welding head which includes a first welding plate 320, a second welding plate 330 and a pressing strip 340. The first welding plate 320, the second welding plate 330 and the pressing strip 340 are integrally formed. Both the first welding plate 320 and the second welding plate 330 are in a cuboid shape. The volume of the first welding plate 320 is larger than that of the second welding plate 330. The first welding plate 320 is horizontally arranged below the dust suction block 110. The second welding plate 330 is arranged on the side of the first welding plate 320 away from the dust suction block 110, and the second welding plate 330 is arranged at the central position of the first welding plate 320. The pressing strip 340 is in a rectangular strip shape and is horizontally arranged on the side of the second welding plate 330 away from the first welding plate 320. The pressing strip 340 is arranged at the central position of the second welding plate 330. During the actual working process, the pressing strip 340 and the bearing pad 200 clamp and fix the battery tab.

[0037] The first through groove 310 is provided in the welding head and vertically penetrates through the first welding plate 320, the second welding plate 330 and the pressing strip 340. The first through groove 310 is arranged corresponding to the dust suction groove 111 and is communicated with the dust suction groove 111. During the laser welding process, the dust generated can splash into the dust suction groove 111 through the first through groove 310 and then be sucked back by an external dust suction device.

[0038] As shown Figure 7 in FIG. Figure 7 , the pressing assembly 100 further includes a protective gas channel 351 which is communicated with the first through groove 310.

[0039] In a specific embodiment, the pressing assembly 100 further includes a protective gas channel 351. There are two protective gas channels 351, and the two protective gas channels 351 are symmetrically arranged on both sides of the first welding plate 320. The protective gas channels 351 are horizontally arranged, and both of the two protective gas channels 351 are communicated with the first through groove 310. The pressing assembly 100 further includes two protective gas connectors 350. The two protective gas connectors 350 are respectively fixedly assembled at the two protective gas channels 351. The protective gas connectors 350 are communicated with the protective gas channels 351, and the protective gas connectors 350 are connected to external equipment so as to inject protective gas into the protective gas channels 351. The protective gas in the protective gas channels 351 flows to the welding position of the battery tab through the first through groove 310, reducing the oxidation reaction during the laser welding process and blowing up the dust generated during the welding process, so that the dust splashes into the dust suction groove 111.

[0040] As Figure 2 shown, the laser welding fixture for the battery tab further includes heat dissipation fins 400, and the heat dissipation fins 400 are connected to the bearing backing plate 200 to facilitate heat dissipation of the bearing backing plate 200.

[0041] In a specific embodiment, the laser welding fixture for the battery tab further includes heat dissipation fins 400 and a heat dissipation plate 410. The heat dissipation plate 410 is rectangular, the heat dissipation plate 410 is parallel to the bearing backing plate 200, the size of the heat dissipation plate 410 matches the size of the bearing backing plate 200. There are several heat dissipation fins 400, and the several heat dissipation fins 400 are arranged on the lower surface of the heat dissipation plate 410 and are vertically arranged at equal intervals. The heat dissipation fins 400 and the heat dissipation plate 410 are integrally formed to facilitate better heat dissipation effect. The bearing backing plate 200 is fixedly assembled with the heat dissipation plate 410 by screws to facilitate heat dissipation of the bearing backing plate 200. The laser welding fixture for the battery tab further includes a positioning plate 420. The positioning plate 420 is rectangular, the positioning plate 420 is perpendicular to the heat dissipation plate 410, there are two positioning plates 420, and the two positioning plates 420 are respectively arranged on both sides of the heat dissipation plate 410. The heat dissipation plate 410 is fixedly assembled with the positioning plate 420 to facilitate fixing the position of the heat dissipation plate 410.

[0042] As Figure 6 shown, the laser welding fixture for the battery tab further includes a cooling fan 500, and the cooling fan 500 is arranged opposite to the heat dissipation fins 400.

[0043] In a specific embodiment, the laser welding fixture for battery tabs further includes a fixing frame 510 and a cooling fan 500. The fixing frame 510 is disposed between two positioning plates 420, and the fixing frame 510 is fixedly assembled with the positioning plates 420. A plurality of cooling fans 500 are provided, and the plurality of cooling fans 500 are arranged horizontally in a row. The plurality of cooling fans 500 are disposed on the side of the heat dissipation fins 400, and the plurality of cooling fans 500 are all fixedly assembled with the fixing frame 510. The cooling fans 500 can blow air to the heat dissipation fins 400 to facilitate the heat dissipation efficiency of the heat dissipation fins 400.

[0044] The laser welding fixture for battery tabs further includes a substrate 900. The substrate 900 is disposed in parallel and spaced apart from the bearing backing plate 200. The heat dissipation fins 400 are located between the substrate 900 and the bearing backing plate 200, and the heat dissipation fins 400 are fixedly assembled with the substrate 900.

[0045] As Figure 3 shown, the pressing assembly 100 further includes a connecting plate 1000. The dust suction block 110 and the welding pressing head 300 are both fixed on the connecting plate 1000. The connecting plate 1000 is provided with a second through groove 610. The second through groove 610 penetrates through the connecting plate 1000, and the second through groove 610 corresponds to the dust suction groove 111.

[0046] In a specific embodiment, the pressing assembly 100 further includes a connecting plate 1000. The connecting plate 1000 includes a first connecting plate 600 and a second connecting plate 700. Both the first connecting plate 600 and the second connecting plate 700 are rectangular plates. The first connecting plate 600 is disposed in parallel and spaced apart from the bearing backing plate 200. The second connecting plate 700 is disposed on the upper surface of the first connecting plate 600, and the second connecting plate 700 is perpendicular to the first connecting plate 600. The first connecting plate 600 and the second connecting plate 700 are fixedly connected, so that the first connecting plate 600 and the second connecting plate 700 form an L shape. A second through groove 610 is provided on the first connecting plate 600. The second through groove 610 vertically penetrates through the first connecting plate 600. The shape of the second through groove 610 matches the shape of the dust suction groove 111. The dust suction block 110 is fixedly assembled on the upper surface of the first connecting plate 600, and the dust suction groove 111 is disposed in alignment with the second through groove 610, so that dust can enter the dust suction groove 111 through the second through groove 610. The welding pressing head 300 is fixedly assembled on the lower surface of the first connecting plate 600, and the first through groove 310 is assembled in alignment with the second through groove 610, so that dust can enter the second through groove 610 through the first through groove 310 and then enter the dust suction groove 111.

[0047] As Figure 2 shown, the laser welding fixture for battery tabs further includes a first fixing plate 800. A guide rail 810 is provided on the side of the first fixing plate 800 close to the connecting plate 1000. A slider is slidably assembled on the guide rail 810, and the connecting plate 1000 is connected to the slider.

[0048] In a specific embodiment, the laser welding fixture for battery tabs further includes a first fixing plate 800 and a guide rail 810. The first fixing plate 800 is rectangular, perpendicular to the substrate 900, and fixedly assembled with the upper surface of the substrate 900. The guide rail 810 is fixedly assembled on one side of the first fixing plate 800 close to the connecting plate 1000. There are two guide rails 810, which are vertically arranged and parallel and spaced apart. A slider is slidably assembled on each guide rail 810, and the slider can slide vertically along the guide rail 810. The second connecting plate 700 in the connecting plate 1000 is fixedly assembled with the two sliders, so that the connecting plate 1000 can move up and down in the vertical direction.

[0049] As Figure 2 shown, the laser welding fixture for battery tabs further includes a quick clamp 820, and the quick clamp 820 is linked with the connecting plate 1000.

[0050] In a specific embodiment, the laser welding fixture for battery tabs further includes two quick clamps 820. The two quick clamps 820 are both fixedly assembled on one side of the first fixing plate 800 close to the connecting plate 1000. The two quick clamps 820 are respectively arranged above the two guide rails 810. The quick clamp 820 is fixedly connected with the second connecting plate 700, so that the user can control the vertical movement of the connecting plate 1000 through the quick clamp 820, and further control the vertical movement of the pressing assembly to clamp and fix the battery tabs.

[0051] In summary, in the laser welding fixture for battery tabs provided by the present application, the battery tabs are placed on the bearing pad 200, and the clamping assembly and the bearing pad 200 clamp and fix the battery tabs. The dust during the laser welding process enters the dust suction groove 111 through the first through groove 310 and the second through groove 610 in the clamping assembly. The external dust suction device sucks back the dust through the dust suction holes communicating with the dust suction groove 111. The external device injects a protective gas into the protective gas channel 351 in the clamping assembly, which can reduce the oxidation reaction during the welding process and blow the dust into the dust suction groove 111 at the same time. A cooling channel 210 is provided on the bearing pad 200, and the external device injects a coolant or a cooling gas into the cooling channel 210 to cool down the welding process and prevent the tab glue on the battery tabs from being scalded. The bearing pad 200 is also connected to the heat dissipation fins 400, and the heat dissipation fins 400 are connected to the heat dissipation fan 500 to further enhance the heat dissipation effect.

[0052] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present application.

Claims

1. A laser welding fixture for battery tabs, characterized in that, Comprising: A lamination assembly including a dust suction block provided with a dust suction groove and a dust suction hole. The dust suction groove runs through the dust suction block, and the dust suction hole communicates with the dust suction groove. The dust suction hole is externally connected to a dust suction device. A carrier backing plate disposed relative to the lamination assembly.

2. The laser welding fixture for battery tabs according to claim 1, wherein, The carrier backing plate is provided with a cooling channel that runs through the carrier backing plate and is used for introducing a coolant or a cooling gas.

3. The laser welding fixture for battery tabs according to claim 1, wherein, The lamination assembly further includes a welding press head provided with a first through groove that runs through the welding press head and is in communication with the dust suction groove.

4. The laser welding jig for the battery tab according to claim 3, wherein The lamination assembly further includes a protective gas channel that communicates with the first through groove.

5. The laser welding fixture for battery tabs according to claim 1, characterized in that, The laser welding jig for battery pole ears further includes heat dissipation fins connected to the carrier backing plate to facilitate heat dissipation of the carrier backing plate.

6. The laser welding fixture for battery tabs according to claim 5, characterized in that The laser welding jig for battery pole ears further includes a heat dissipation fan that is installed at a relative interval with respect to the heat dissipation fins.

7. The laser welding fixture for the battery tab according to claim 3, characterized in that, The lamination assembly further includes a connecting plate, and both the dust suction block and the welding press head are fixed on the connecting plate.

8. The laser welding fixture for battery tabs according to claim 7, characterized in that, The connecting plate is provided with a second through groove that runs through the connecting plate and is correspondingly in communication with the dust suction groove.

9. The laser welding fixture for battery tabs according to claim 8, wherein, The laser welding jig for battery pole ears further includes a first fixing plate. On a side of the first fixing plate close to the connecting plate, there is a guide rail, and a slider is slidably assembled on the guide rail. The connecting plate is connected to the slider.

10. The laser welding jig for battery tabs according to claim 9, characterized in that, The laser welding jig for battery pole ears further includes a quick clamp that is linked with the connecting plate.

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