Battery cell chip welding device

Abstract

The utility model provides a battery cell chip welding device. The battery cell chip welding device comprises a base, the supporting structure is arranged on the base; the pressing assembly is arranged on the supporting structure, and the pressing assembly is used for fixing the battery cell; the adjusting plate is movably connected with the supporting structure in the height direction of the supporting structure; the welding seat is arranged at one end, far away from the base, of the adjusting plate, a hollow part is arranged on the welding seat, and the hollow part is used for welding the battery cell and the chip. The problem that in the prior art, after the battery cell model is changed, a welding tool cannot meet the requirement is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell processing, in particular to a battery cell tab welding device. BACKGROUND

[0002] In recent years, with the rapid development of new energy vehicles, global power battery production capacity is expanding, and the tab welding of battery cells is an important part of power battery production. The tab is an important part of the battery module, and the battery monomer can be connected in series through the tab to form a battery pack, and it can also be used as a connector between the battery pack and the electronic control system to output battery power to the electronic control system. However, in the prior art, the tab welding tool cannot cope with different height models of batteries, and when the model of the battery changes, the welding tool cannot meet the demand. SUMMARY

[0003] The main purpose of the utility model is to provide a battery cell tab welding device to solve the problem that the welding tool cannot meet the requirements when the model of the battery changes in the prior art.

[0004] In order to achieve the above purpose, according to one aspect of the utility model, a battery cell tab welding device is provided, which comprises a base; a support structure arranged on the base; a pressing assembly arranged on the support structure, the pressing assembly fixing the battery cell; an adjusting plate movably connected with the support structure along the height direction of the support structure; and a welding seat arranged at one end of the adjusting plate away from the base, the welding seat having a hollow part for welding the battery cell and the tab.

[0005] Further, the support structure comprises a first support plate arranged on the base, the pressing assembly is arranged on the first support plate, and the adjusting plate is movably connected with the first support plate; a second support plate arranged on the base, the first support plate and the second support plate are arranged at an angle, and the two adjacent sides of the battery cell abut against the first support plate and the second support plate respectively.

[0006] Further, the battery cell tab welding device further comprises a fixing member for fixing the adjusting plate after sliding, a long hole is formed in the adjusting plate, the extension direction of the long hole is the same as the length direction of the first support plate, a connecting hole is formed in the first support plate, and the fixing member is connected with the long hole and the connecting hole and fixes the adjusting plate.

[0007] Further, the number of connecting holes is multiple, and the connecting holes are arranged at intervals along the height direction of the first support plate.

[0008] Further, a sliding groove is formed in the first support plate, and the adjusting plate is movably arranged in the sliding groove.

[0009] Further, the pressing assembly comprises a connecting seat arranged on the first supporting plate, a close-contact plate abutting against the battery cell, and an elastic member connecting the close-contact plate with the connecting seat and driving the close-contact plate to move away from the connecting seat.

[0010] Further, the pressing assembly further comprises a driving member arranged on the connecting seat and driving the close-contact plate to move towards the connecting seat.

[0011] Further, the pressing assembly further comprises a limiting member arranged on the close-contact plate and having a limiting portion clamping the battery cell together with the first supporting plate.

[0012] Further, the limiting member comprises a first plate segment arranged on the close-contact plate, and a second plate segment arranged at one end of the first plate segment away from the first supporting plate and forming the limiting portion, and the second plate segment is parallel to the first supporting plate.

[0013] Further, a through hole is formed in the first plate segment and extends in a direction perpendicular to the first connecting plate, and the pressing assembly further comprises a connecting member penetrating through part of the through hole and fixing the first plate segment.

[0014] Further, a limiting groove for placing the tab is formed in the welding seat and communicates with the hollow portion, and / or a positioning pin is fixed on the welding seat and used for positioning the tab.

[0015] Further, the battery cell tab welding device further comprises a reinforcing plate, one end of the reinforcing plate is connected with the base, and the other end of the reinforcing plate is connected with the second supporting plate.

[0016] The technical scheme of the utility model realizes the following technical effects:

[0017] In the process of use, since the adjusting plate is movably connected with the supporting structure, when the size of the battery cell changes, the position of the welding seat arranged on the adjusting plate can be changed, so that the welding seat can cooperate with battery cells of different sizes, and the compatibility of the welding device is improved. Meanwhile, when the battery cell is placed on the welding device, the battery cell is fixed by the pressing structure, the stability of the battery cell in the welding process is improved, and the welding efficiency of the battery cell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification provide further understanding of the utility model, the schematic embodiment of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0019] Figure 1 The overall structure schematic view of the battery cell tab welding device is shown.

[0020] Figure 2 Another angle schematic view of the battery cell tab welding device is shown in the present application;

[0021] Figure 3 A structural schematic view of the base and support structure of one of the embodiments of the present application is shown;

[0022] Figure 4 A structural schematic view of the pressing assembly of one of the embodiments of the present application is shown;

[0023] Figure 5 A structural schematic view of the welding seat of one of the embodiments of the present application is shown.

[0024] Among them, the above-mentioned drawings include the following reference signs:

[0025] 10, base; 20, support structure; 21, first support plate; 211, connecting hole; 212, sliding groove; 22, second support plate; 30, pressing assembly; 31, connecting seat; 32, close plate; 33, elastic piece; 34, driving piece; 35, limiting piece; 351, first plate segment; 352, second plate segment; 353, through hole; 354, connecting piece; 40, adjusting plate; 41, long hole; 50, welding seat; 51, limiting groove; 52, positioning pin; 53, hollow part 60, fixing piece; 70, reinforcing plate. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the present application, unless otherwise stated, the orientation words such as "up, down, top, bottom" are generally directed to the direction shown in the drawings, or directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above-mentioned orientation words are not used to limit the present application.

[0029] In order to solve the problem that the welding tooling cannot meet the requirements after the model of the battery cell changes in the prior art, the present application provides a battery cell tab welding device.

[0030] Referring to Figures 1 to 5The battery cell tab welding device comprises a base 10, a support structure 20, a pressing structure, an adjusting plate 40 and a welding seat 50. The support structure 20 is arranged on the base 10, and the pressing assembly 30 is arranged on the support structure 20 to fix the battery cell. The adjusting plate 40 is movably connected with the support structure 20 along the height direction of the support structure 20. The welding seat 50 is arranged at the end of the adjusting plate 40 away from the base 10, and the welding seat 50 is provided with a hollow part for welding the battery cell and the tab.

[0031] During use, since the adjusting plate 40 is movably connected with the support structure 20, when the size of the battery cell changes, the position of the welding seat 50 arranged on the adjusting plate 40 can be changed by changing the position of the adjusting plate 40, so that the welding seat 50 can cooperate with battery cells of different sizes, improving the compatibility of the welding device. At the same time, after the battery cell is placed on the welding device, the battery cell is fixed by the pressing structure, increasing the stability of the battery cell during the welding process and improving the welding efficiency of the battery cell.

[0032] During use, the battery cell is placed on the support structure 20, the position of the adjusting plate 40 is changed to adapt the position of the adjusting plate 40 to the size of the battery cell to be welded, and the battery cell is fixed by the pressing structure to increase the stability of the battery cell. Finally, the tab is placed on the welding seat 50 to weld the tab and the battery cell in the hollow part, completing the welding process of the battery cell.

[0033] In the present application, the support structure 20 comprises a first support plate 21 and a second support plate 22. The first support plate 21 is arranged on the base 10, the pressing assembly 30 is arranged on the first support plate 21, and the adjusting plate 40 is movably connected with the first support plate 21. The second support plate 22 is arranged on the base 10, and the first support plate 21 and the second support plate 22 are arranged at an angle. The two adjacent sides of the battery cell respectively abut against the first support plate 21 and the second support plate 22.

[0034] Specifically, by arranging two support plates to abut against the two adjacent sides of the battery cell, the abutment and positioning of the battery cell can be achieved, and the stability of the battery cell is increased. The angle of the first support plate 21 and the second support plate 22 is the same as the angle between the two adjacent sides of the battery cell, so that the two adjacent sides of the battery cell can completely abut against the first support plate 21 and the second support plate 22. In a preferred embodiment, the first support plate 21 and the second support plate 22 are arranged perpendicularly to each other, and the two adjacent sides of the battery cell are also perpendicular to each other.

[0035] Referring to Figure 2 and Figure 3The cell tab welding device further comprises a fixing member for fixing the sliding adjusting plate 40, the adjusting plate 40 is provided with a long hole 41, the extension direction of the long hole 41 is the same as the length direction of the first supporting plate 21, the first supporting plate 21 is provided with a connecting hole 211, the fixing member is connected with the connecting hole 211 through the long hole 41 and fixes the adjusting plate 40.

[0036] Since the adjusting plate 40 is provided with the long hole 41, when the fixing member does not fix the adjusting plate 40, the fixing member can slide in the long hole 41, so that the position of the adjusting plate 40 is changed conveniently, and the position change of the adjusting plate 40 is realized.

[0037] In the application, the number of the connecting holes 211 is multiple, and the connecting holes 211 are arranged at intervals along the height direction of the first supporting plate 21.

[0038] In order to change the position of the adjusting plate 40 conveniently, the adjusting plate 40 can be matched with different connecting holes 211, since the height positions of the different connecting holes 211 are different, the height of the adjusting plate 40 is different when matched with different connecting holes 211, so that the position of the adjusting plate 40 is changed conveniently.

[0039] In the application, the first supporting plate 21 is provided with a sliding groove 212, and the adjusting plate 40 is movably arranged in the sliding groove 212.

[0040] Specifically, the sliding groove 212 can limit the movement of the adjusting plate 40, so that the adjusting plate 40 can only slide along the extension direction of the sliding groove 212, and the stability of the movement of the adjusting plate 40 is increased. In the preferred solution, the width of the sliding groove 212 is the same as the width of the adjusting plate 40, so that the two sides of the adjusting plate 40 abut against the side walls of the sliding groove 212, so that the stability of the movement of the adjusting plate 40 is further increased.

[0041] Referring to Figure 4 The pressing assembly 30 comprises a connecting seat 31, a close plate 32 and an elastic member 33, the connecting seat 31 is arranged on the first supporting plate 21, the close plate 32 abuts against the cell, the close plate 32 is connected with the connecting seat 31 through the elastic member 33, and the elastic member 33 drives the close plate 32 to move away from the connecting seat 31.

[0042] Specifically, in the process of placing the battery cell, the close plate 32 is moved so that a gap exists between the close plate 32 and the second support plate 22, then the battery cell is placed in the gap, after the placement is completed, the close plate 32 is loosened, and the close plate 32 is pressed against the battery cell under the driving of the elastic member 33, so that the fixation of the battery cell is realized.

[0043] In one of the embodiments, the elastic member 33 is a spring, in order to facilitate the fixation of the elastic member 33, the close plate 32 is fixed with a guide column which is slidingly connected with the connecting seat 31, and the spring is sleeved on the guide column. The stability of the movement of the close plate 32 is increased, and the stability of the setting of the elastic member 33 is also increased.

[0044] In the application, the pressing assembly 30 further comprises a driving member 34, the driving member 34 is arranged on the connecting seat 31, and the driving member 34 drives the close plate 32 to move towards the connecting seat 31.

[0045] Specifically, in the process of placing the battery cell, the close plate is moved by the driving member 34, so that the close plate can be conveniently operated. Preferably, the driving member 34 is a lever or a horizontal quick clamp.

[0046] In the application, the pressing assembly 30 further comprises a limiting member 35, the limiting member 35 is arranged on the close plate 32, and the limiting member 35 has a limiting part, the limiting part clamps the battery cell together with the first support plate 21.

[0047] Specifically, the limiting part can clamp the battery cell together with the first support plate 21, the movement of the battery cell away from the first support plate 21 is blocked by the limiting member 35, and the stability of the placement of the battery cell is increased.

[0048] In the application, the limiting member 35 comprises a first plate segment 351 and a second plate segment 352, the first plate segment 351 is arranged on the close plate 32, and the second plate segment 352 is arranged at one end of the first plate segment 351 away from the first support plate 21, the second plate segment 352 forms the limiting part, and the second plate segment 352 is parallel to the first support plate 21.

[0049] The first plate segment 351 mainly plays a connecting role, and is used for the connection and setting of the second plate segment 352. The second plate segment 352 forms the limiting part, and clamps the battery cell together with the first support plate 21, so that the stability of the placement of the battery cell is increased.

[0050] In the application, a through hole 353 is formed in the first plate segment 351, the through hole 353 extends in a direction perpendicular to the first connecting plate, and the pressing assembly 30 further comprises a connecting member 354, the connecting member 354 passes through part of the through hole 353 to fix the first plate segment 351.

[0051] Specifically, the through hole 353 has a certain extension length, the connecting piece 354 is fixed with the close plate 32 through the through hole 353, the length of the first plate segment 351 extending out of the connecting piece 354 can be changed by changing the relative position of the through hole 353 and the connecting piece 354, thereby the distance between the second plate segment 352 and the first support plate 21 can be changed, different sizes of battery cells can be adapted, and adjustment according to different sizes of battery cells is facilitated.

[0052] Referring to Figure 5 The welding seat 50 is provided with a limiting groove 51 for placing the tab, the limiting groove 51 is communicated with the hollow part, and the welding seat 50 is fixed with a positioning pin 52 for positioning the tab.

[0053] The limiting groove 51 and the positioning pin 52 are both used for positioning and fixing the tab, the stability of placing the tab is increased, the welding between the battery cell and the tab is facilitated, and the welding efficiency is improved.

[0054] In the application, the battery cell tab welding device further comprises a reinforcing plate, one end of the reinforcing plate is connected with the base 10, and the other end of the reinforcing plate is connected with the second support plate 22.

[0055] The reinforcing plate can increase the connection strength between the second support plate 22 and the base 10 and increase the stability of the second support plate 22.

[0056] From the above description, it can be seen that the embodiments of the utility model realize the following technical effects:

[0057] 1. In the process of use, because the adjusting plate 40 is movably connected with the support structure 20, when the size of the battery cell changes, the position of the welding seat 50 arranged on the adjusting plate 40 can be changed by changing the position of the adjusting plate 40, so that the welding seat 50 can cooperate with battery cells of different sizes, and the compatibility of the welding device is improved. At the same time, when the battery cell is placed on the welding device, the battery cell is fixed by the pressing structure, the stability of the battery cell in the welding process is increased, and the welding efficiency of the battery cell is improved.

[0058] 2. Because the adjusting plate 40 is provided with a long hole 41, when the fixing piece does not fix the adjusting plate 40, the fixing piece can relatively slide in the long hole 41, so that the position of the adjusting plate 40 is changed. Preferably, the fixing piece is a bolt, when the bolt is not tightened, the adjusting plate 40 can slide relative to the bolt; when the bolt is tightened, the adjusting plate 40 and the bolt cannot relatively slide, the adjusting plate 40 is fixed, and the position of the adjusting plate 40 is changed.

[0059] 3、Limiting groove 51 and positioning pin 52 are used for positioning and fixing the baffle, increasing the stability of the baffle placement, facilitating the welding between the battery cell and the baffle, and improving the welding efficiency.

[0060] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0062] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms in the description and in the claims of the present application is merely for distinguishing between the similar elements, and not necessarily for describing a particular sequential or chronological order.

[0063] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrode tab welding apparatus, characterized by comprising: The electric cell tab welding device comprises a base (10), a support structure (20) arranged on the base (10), a pressing assembly (30) arranged on the support structure (20) and used for fixing the electric cell, an adjusting plate (40) movably connected with the support structure (20) along the height direction of the support structure (20), and a welding seat (50) arranged at the end of the adjusting plate (40) away from the base (10) and having a hollow part for welding the electric cell and the tab. The support structure (20) comprises a first support plate (21) arranged on the base (10), the pressing assembly (30) being arranged on the first support plate (21), and the adjusting plate (40) being movably connected with the first support plate (21); and a second support plate (22) arranged on the base (10) and arranged at an angle between the first support plate (21) and the second support plate (22), the two adjacent sides of the electric cell being abutted with the first support plate (21) and the second support plate (22) respectively. The electric cell tab welding device further comprises a fixing member for fixing the sliding adjusting plate (40), the adjusting plate (40) is provided with a long hole (41) extending in the same direction as the length direction of the first support plate (21), the first support plate (21) is provided with a connecting hole (211), and the fixing member is connected with the connecting hole (211) through the long hole (41) and is used for fixing the adjusting plate (40). The number of the connecting holes (211) is multiple, and the connecting holes (211) are arranged at intervals along the height direction of the first support plate (21). The first support plate (21) is provided with a sliding groove (212), and the adjusting plate (40) is movably arranged in the sliding groove (212). The pressing assembly (30) comprises a connecting seat (31) arranged on the first support plate (21), a close plate (32) abutted with the electric cell, and an elastic member (33) connecting the close plate (32) with the connecting seat (31), the elastic member (33) driving the close plate (32) to move away from the connecting seat (31).

2. The cell tab welding apparatus of claim 1, wherein The pressing assembly (30) further comprises a driving member (34) arranged on the connecting seat (31) and driving the close plate (32) to move towards the connecting seat (31). The pressing assembly (30) further comprises a limiting member (35) arranged on the close plate (32) and having a limiting part, the limiting part and the first support plate (21) clamping the electric cell. ​ 3. The cell tab welding apparatus of claim 2, wherein ​ 4. The cell tab welding apparatus of claim 3, wherein ​ 5. The cell tab welding apparatus of claim 3, wherein ​ 6. The cell tab welding apparatus of claim 2, wherein ​ ​ ​ ​ 7. The cell tab welding apparatus of claim 6, wherein ​ 8. The cell tab welding apparatus of claim 6, wherein, ​ 9. The cell tab welding apparatus of claim 8, wherein, The limiting piece (35) comprises: A first plate segment (351) arranged on the close-together plate (32); A second plate segment (352) arranged at an end of the first plate segment (351) away from the first support plate (21), the second plate segment (352) forming the limiting part, and the second plate segment (352) being parallel to the first support plate (21).

10. The cell tab welding apparatus of claim 9, wherein, A through hole (353) is formed on the first plate segment (351), the through hole (353) extending in a direction perpendicular to the first support plate (21), and the pressing assembly (30) further comprises a connecting piece (354) penetrating through part of the through hole (353) to fix the first plate segment (351).

11. The cell tab welding apparatus of claim 1, wherein, The welding seat (50) is provided with a limiting groove (51) for placing the bar piece, the limiting groove (51) being in communication with the hollow part; and / or The welding seat (50) is fixed with a positioning pin (52) for positioning the bar piece.

12. The cell tab welding apparatus of claim 2, wherein, The battery cell bar piece welding device further comprises a reinforcing plate, one end of the reinforcing plate being connected with the base (10), and the other end of the reinforcing plate being connected with the second support plate (22).

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