Welding tool, welding device and battery production equipment

Abstract

The utility model relates to a welding tool, a welding device and battery production equipment. The welding tool comprises a first positioning seat, a second positioning seat and a pressing piece. The first positioning seat is provided with an accommodating space which is used for accommodating a battery monomer and is provided with an opening in the top end, the second positioning seat is arranged on the first positioning seat, the second positioning seat is provided with a placing part which is used for placing an electric connecting piece and is positioned on the top side of the accommodating space, and the placing part is arranged corresponding to a pole of the battery monomer; and the electric connecting piece on the placing part is propped against the pole of the battery monomer along the first direction. The pressing and holding piece is arranged on the second positioning seat and is configured to abut against one side, deviating from the battery monomer, of the electric connecting piece along the first direction. The relative positions of the battery monomers and the electric connecting pieces are mutually fixed, so that the electric connecting pieces can be conveniently welded on the pole columns of the battery monomers through a welding process subsequently, and the convenience of the welding operation of the battery monomers can be improved.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to welding tools, welding devices and battery production equipment. Background Art

[0002] In the related art, the pole of the battery cell is usually connected to the tab by welding. However, the related art has the problem that the welding operation of the battery cell is inconvenient. Summary of the invention

[0003] Based on this, it is necessary to provide a welding tool, a welding device and a battery production equipment to address the problem of inconvenient welding operation of battery cells in the related art.

[0004] According to the first aspect of the present application, a welding tool is provided, including a first positioning seat, a second positioning seat and a holding piece. The first positioning seat is provided with a receiving space with an opening at the top for receiving a battery cell, the second positioning seat is provided on the first positioning seat, and the second positioning seat is provided with a placement portion for placing an electrical connector and located on the top side of the receiving space, the placement portion is provided corresponding to the pole of the battery cell, and is used to make the electrical connector on the placement portion abut against the pole of the battery cell along a first direction. The holding piece is provided on the second positioning seat, and is configured to be able to abut against the side of the electrical connector away from the battery cell along the first direction. The first direction is parallel to the direction from the top of the first positioning seat to the bottom of the first positioning seat.

[0005] In the technical solution of the present application, the battery cell can be placed in the accommodating space, and the electrical connector can be placed on the placement portion, so that the pole of the battery cell can be exposed through the opening at the top of the accommodating space and contact the electrical connector on the placement portion, and then the pressing member is abutted against the side of the electrical connector away from the battery cell along a first direction by the pressing member. The pressing member of the welding tool can be used to press the electrical connector on the pole of the battery cell along the first direction, so that the relative positions of the battery cell and the electrical connector are fixed to each other, which is convenient for subsequently welding the electrical connector to the pole of the battery cell through a welding process, and the convenience of the welding operation of the battery cell can be improved.

[0006] In one of the embodiments, the holding member is configured to be operable to switch between a first state and a second state. When the holding member is in the first state, the holding member is separated from the electrical connector. When the holding member is in the second state, the holding member abuts against the side of the electrical connector facing away from the battery cell along the first direction. Before installing the battery cell in the accommodating space, the holding member can be placed in the first state. At this time, the holding member is separated from the electrical connector and will not interfere with the clamping or installation of the battery cell and the electrical connector. It is convenient to first place the battery cell in the accommodating space, then place the electrical connector at the placement portion, and then place the holding member in the second state, so that the holding member abuts against the side of the electrical connector facing away from the battery cell along the first direction. In this way, the battery cell and the electrical connector can be fixed, which is convenient for the subsequent welding of the electrical connector to the pole of the battery cell through a welding process, which can improve the convenience of the welding operation of the battery cell.

[0007] In one embodiment, the holding member is rotatably disposed on the second positioning seat around an axis parallel to the second direction, and is used to switch between the first state and the second state. The first direction and the second direction intersect each other. The holding member can be rotated relative to the second positioning seat around an axis parallel to the second direction, thereby switching the holding member between the first state and the second state, which also facilitates the welding operation of the battery cell.

[0008] In one embodiment, the welding tool further includes a locking member, and when the holding member is in the second state, the holding member is fixed to the second positioning seat by the locking member. Compared with fixing the holding member to the second positioning seat by bolt locking, in the present application, when the holding member is in the second state, the holding member is fixed to the second positioning seat by the locking member, and when the holding member needs to be switched from the second state to the first state, the locking of the locking member can be cancelled, avoiding the cumbersome bolt disassembly process, improving the convenience of operation of the welding tool, and also helping to improve the assembly efficiency of the battery cell before welding.

[0009] In one embodiment, the pressing member includes a pressing portion for contacting the electrical connector, and the pressing portion is provided with a welding opening for partially exposing the electrical connector. During welding, the electrical connector can be welded to the pole of the battery cell through the welding opening. For example, the welding mechanism for welding is a laser welding mechanism, and the laser generated by the welding mechanism can be emitted to the electrical connector through the welding opening to weld the electrical connector to the pole of the battery cell.

[0010] In one embodiment, a welding groove is recessed on the top of the pressing portion, and a welding opening passes through the bottom wall of the welding groove, so as to facilitate welding operation between the electrical connector and the pole of the battery cell through the welding groove and the welding opening on the bottom wall of the welding groove.

[0011] In one embodiment, the pressing portion includes an abutting surface disposed around the welding opening, and the abutting surface is used to abut against the side of the electrical connector away from the battery cell along the first direction. On the one hand, it is convenient for the welding mechanism to weld the electrical connector to the pole of the battery cell through the welding opening; on the other hand, since the abutting surface is disposed around the welding opening, therefore, while adding the welding opening, the contact area between the pressing portion and the electrical connector can be increased, and further, the reliability of the pressing portion pressing on the electrical connector and the pole can be improved, which is beneficial to better welding the electrical connector to the pole of the battery cell.

[0012] In one embodiment, the placing portion is configured as a placing groove provided on the second positioning seat and used for accommodating the electrical connector. The notch of the placing groove and the opening of the accommodating space communicate with each other, and the plane where the notch of the placing groove is located intersects with the plane where the opening of the accommodating space is located. In this way, after the electrical connector is placed in the placing groove, the electrical connector can extend out through the notch of the placing groove. Combining that the notch of the placing groove and the opening of the accommodating space communicate with each other, and the plane where the notch of the placing groove is located intersects with the plane where the opening of the accommodating space is located, in this way, the part of the electrical connector extending out of the notch of the placing groove can be located on the top side of the battery cell, and the extending direction of the part of the electrical connector extending out of the notch of the placing groove can intersect with the height direction of the battery cell, which is convenient for the part of the electrical connector extending out of the notch of the placing groove to press on the pole of the battery cell.

[0013] In one embodiment, the side wall of the placing groove is provided with a placing opening facing the pressing member, and the placing opening and the notch of the placing groove communicate with each other at adjacent positions. After the battery cell is placed in the accommodating space, the electrical connector can be conveniently placed in the placing groove through the placing opening, and then the pressing member is abutted against the side of the electrical connector away from the battery cell along the first direction, which is convenient for subsequent welding operations. In this way, the placing opening can improve the assembly convenience of the electrical connector.

[0014] In one embodiment, the electrical connector has a corner portion, and the second positioning seat is provided with an avoidance groove for accommodating the corner portion, and the avoidance groove communicates with the side of the placing groove away from the notch of the placing groove. The avoidance groove can be used to accommodate and protect the corner portion of the electrical connector, reducing damage to the electrical connector.

[0015] In one embodiment, the avoidance groove has an arc-shaped side wall, and a communication port communicating with the placing groove is provided between the opposite ends of the arc-shaped side wall along its arc length direction. In this way, the stress concentration of the second positioning seat at the avoidance groove can be reduced, and further, the strength and service life of the avoidance groove can be improved.

[0016] In one embodiment, the welding tool further includes a support member for supporting the battery cell, the support member is disposed on the first positioning seat, and defines a storage space with the first positioning seat, and the support member is configured to be movable relative to the first positioning seat along a first direction. The battery cell can be placed on the support member and located in the storage space. Since the support member can move relative to the first positioning seat along the first direction, the battery cell on the support member can also move relative to the first positioning seat along the first direction as required, so that the poles of the battery cells of different heights can contact the corresponding electrical connectors, so as to perform welding operations between the poles and the corresponding electrical connectors. Therefore, the welding tool can be applied to battery cells of different heights, which can broaden the application scope of the welding tool.

[0017] In one embodiment, the welding tool further includes a first adjusting member extending along the first direction, the first adjusting member is arranged on the first positioning seat and is threadedly connected to the support member. The height of the support member along the first direction can be changed by rotating the first adjusting member, and the height of the battery cell along the first direction can be adjusted. In this way, by using the first adjusting member, the welding tool can be easily adapted to battery cells of different heights.

[0018] In one embodiment, the first positioning seat includes a base portion located at the bottom side of the support member, and the welding tool also includes an elastic member, which is arranged between the base portion and the support member. The elastic member can be retracted along a first direction, and the compressed elastic member can be used to make the pole of the battery cell better contact the electrical connector, thereby facilitating better welding of the electrical connector to the pole of the battery cell.

[0019] In one embodiment, the first positioning seat includes a first seat body and a second seat body that are opposite and spaced apart along the second direction, the accommodation space is formed between the first seat body and the second seat body, and the second positioning seat is arranged on the first seat body. The first direction and the second direction intersect each other. In this way, the battery cell can be clamped between the first seat body and the second seat body and located in the accommodation space, so that the installation flexibility of the battery cell can be improved.

[0020] In one embodiment, the first positioning seat further includes a second adjusting member, which is disposed on at least one of the first seat body and the second seat body and is used to adjust the distance between the first seat body and the second seat body along the second direction. The distance between the first seat body and the second seat body along the second direction can be adjusted according to the thickness of the battery cell, so that the welding tool can be applied to battery cells of different thicknesses.

[0021] In one embodiment, the first base body and the second base body are detachably connected by a second adjusting member. After removing the connection between the first base body and the second base body, the distance between the first base body and the second base body in the second direction can be adjusted according to the thickness of the battery cell, and then the first base body and the second base body are connected to each other. In this way, it is convenient to clamp battery cells with different thicknesses between the first base body and the second base body and place them in the accommodation space, and the installation flexibility of the battery cells can be further improved.

[0022] In one embodiment, the first positioning base further includes a first limiting member and a second limiting member that are opposite and spaced apart in the third direction. The first base body, the second base body, the first limiting member, and the second limiting member enclose an accommodation space. The first direction, the second direction, and the third direction intersect pairwise. The accommodation space can be enclosed by the first base body, the second base body, the first limiting member, and the second limiting member, thereby improving the clamping stability of the battery cell, which is conducive to better welding operations of the battery cell.

[0023] In one embodiment, at least one of the first limiting member and the second limiting member is configured to be movable relative to the first base body or the second base body in the third direction. In this way, according to the width of the battery cell, at least one of the first limiting member and the second limiting member can be moved relative to the first base body or the second base body in the third direction, and then the distance between the first limiting member and the second limiting member in the third direction can be adjusted, so that the welding tooling can be applicable to battery cells with different widths.

[0024] In one embodiment, along the second direction, the first limiting member and the second limiting member are limited between the first base body and the second base body. In this way, after connecting the first base body and the second base body, the first limiting member and the second limiting member can be positioned and fixed. This can not only limit and fix the battery cell between the first base body and the second base body, but also limit and fix the battery cell between the first limiting member and the second limiting member, improving the installation convenience and reliability of the battery cell.

[0025] In one embodiment, the first positioning base further includes a second adjusting member. The first base body is provided with a first connection hole adapted to the second adjusting member, and the second base body is provided with a second connection hole adapted to the second adjusting member. The first limiting member is provided with a first through hole extending in the third direction, and the second adjusting member passes through the first connection hole, the first through hole, and the second connection hole; and / or, the second limiting member is provided with a second through hole extending in the third direction, and the second adjusting member passes through the first connection hole, the second through hole, and the second connection hole. In this way, the distance between the first limiting member and the second limiting member can be adjusted according to the width of the battery cell, and the welding tooling can be applicable to battery cells with different widths.

[0026] In one embodiment, the first base body includes a base portion and two side base portions. The two side base portions are disposed at intervals along a third direction on the top side of the base portion, and at least part of the second positioning seat is located between the two side base portions. The first direction, the second direction and the third direction intersect pairwise. Since at least part of the second positioning seat is located between the two side base portions, it is equivalent to accommodating at least part of the second positioning seat between the two side base portions, which can reduce the overall occupied volume of the first positioning seat and the second positioning seat, and further reduce the volume of the welding tooling.

[0027] In one embodiment, the battery cell includes two pole columns. The welding tooling includes two second positioning seats disposed at intervals along a third direction on the first base body. Each second positioning seat is provided with a placement portion, and the welding tooling includes two pressing members corresponding to the two second positioning seats one by one. The first direction, the second direction and the third direction intersect pairwise. In this way, each pressing member can press the corresponding electrical connection member along the first direction onto a corresponding pole column of the battery cell, so that the relative positions of the battery cell and the electrical connection member are fixed to each other, which is convenient for subsequently welding the electrical connection member to the corresponding pole column by a welding process and is convenient for welding the two pole columns respectively.

[0028] In one embodiment, the welding tooling further includes at least one heightening member. The heightening member is supported and disposed on the bottom side of the corresponding second positioning seat, and at least one heightening member is used to make the heights of the two placement portions along the first direction equal. It can make the heights of the electrical connection members on the two second positioning seats along the first direction equal, which is convenient for the two electrical connection members to be pressed onto the corresponding pole columns along the first direction respectively, and is convenient for welding the two pole columns respectively.

[0029] In one embodiment, the second positioning seat is configured to be movable relative to the first positioning seat along the third direction. The position of the second positioning seat along the third direction can be changed according to the position of the pole column, so that the electrical connection member can be pressed onto the corresponding pole column along the first direction, which is convenient for welding the two pole columns respectively. In this way, the welding tooling can be applicable to battery cells with different pole column positions.

[0030] In one embodiment, the second positioning seat is configured to be movable relative to the first positioning seat along the third direction. The first direction and the third direction intersect with each other.

[0031] In one embodiment, the welding tooling further includes a third adjusting member extending along the third direction. The third adjusting member is disposed on the first positioning seat and is threadedly connected to the second positioning seat. The position of the second positioning seat along the third direction can be adjusted by the third adjusting member, so that the welding tooling can be applicable to battery cells with different pole column positions.

[0032] In one embodiment, the welding tooling further includes a first positioning member extending in a first direction and a second positioning member extending in a third direction. The first positioning member penetrates through the first positioning seat in the first direction and abuts against the second positioning seat in the first direction. The second positioning member penetrates through the first positioning seat in the third direction and abuts against the second positioning seat in the third direction. The first direction intersects with the third direction. The second positioning seat can be fixed on the first positioning seat by using the first positioning member and the second positioning member in different directions, which can improve the installation stability of the second positioning seat.

[0033] In one embodiment, the first positioning member is movably penetrated through the first positioning seat in the first direction, and the second positioning member is movably penetrated through the first positioning seat in the third direction. In this way, when it is necessary to adjust the position of the second positioning seat in the third direction or disassemble the second positioning seat, the first positioning member can be moved in the first direction away from the second positioning seat, or the second positioning member can be moved in the third direction away from the second positioning seat, so as to release the limit fixation of the first positioning member and the second positioning member on the second positioning seat for subsequent operations.

[0034] In one embodiment, the battery cell includes two pole columns. Two placement parts corresponding to the two pole columns one by one are provided on the second positioning seat, and the welding tooling includes two pressing members corresponding to the two placement parts one by one; or, the welding tooling includes two second positioning seats corresponding to the two pole columns one by one, and one placement part is provided on each second positioning seat, and the welding tooling includes two pressing members corresponding to the two placement parts one by one. Each pressing member can press on the electrical connection member on the corresponding placement part to weld the two pole columns respectively.

[0035] According to the second aspect of the present application, a welding device is provided, including the welding tooling of any one of the above embodiments.

[0036] According to the third aspect of the present application, a battery production device is provided, including the above welding device.

[0037] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. Description of the Drawings

[0038] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0039] Figure 1 The structural schematic diagram of a welding tooling according to an embodiment of the present application is shown (from the first perspective).

[0040] Figure 2 The structural schematic diagram of a welding tooling according to an embodiment of the present application is shown (from the second perspective).

[0041] Figure 3 The structural schematic diagram of a welding tooling according to an embodiment of the present application is shown when the pressing member is in the first state.

[0042] Figure 4 The structural schematic diagram of the second positioning seat and the heightening member according to an embodiment of the present application is shown.

[0043] Figure 5 The structural schematic diagram of the pressing member according to an embodiment of the present application is shown.

[0044] Figure 6 The exploded schematic diagram of a welding tooling according to an embodiment of the present application is shown (from the third perspective).

[0045] Figure 7 The structural schematic diagram of the locking member according to an embodiment of the present application is shown.

[0046] Figure 8 The exploded schematic diagram of a welding tooling according to an embodiment of the present application is shown (from the fourth perspective).

[0047] Figure 9 The side view of a welding tooling according to an embodiment of the present application is shown.

[0048] Reference numerals:

[0049] 10, welding tooling;

[0050] 110, first positioning seat; R, accommodation space; 111, first seat body; K1, first connection hole; 1111, base portion; 11111, bushing hole; 1112, side seat portion; 112, second seat body; K2, second connection hole; 113, second adjusting member; 114, first limiting member; 1141, first step portion; K3, first through hole; 115, second limiting member; K4, second through hole;

[0051] 120, second positioning seat; 1201, placing portion; 12011, placing opening; 1202, avoiding groove; 12021, arc-shaped side wall; 12022, communication port; 121, first part; 1211, eighth mounting hole; 1212, first threaded hole; 122, second part; 1221, first mounting hole; K5, first stepped hole; K6, second stepped hole;

[0052] 130. Pressing member; 131. Pressing portion; 1311. Welding opening; 1312. Welding groove; 1313. Contact surface; 1301. Second mounting hole; 1302. Seventh mounting hole;

[0053] 141. Locking member; 1411. First main body portion; 14111. Fifth mounting hole; 1412. Second main body portion; 14121. Sixth mounting hole; 1413. First locking portion; C. Locking groove; 1414. Second locking portion; 142. Locking bolt; 14141. Lock handle; 14142. Lock hook;

[0054] 151. Support member; 152. First adjusting member; 1521. Second head; 1522. Threaded portion; 153. Elastic member; 154. Bush; 1541. First head; 1542. Bush body; 155. Axle pin;

[0055] 161. Lifting member; 1611. Third through hole; 162. Third adjusting member; 163. First positioning member; 164. Second positioning member; 165. Side gasket;

[0056] 170. Hinge; 1701. Third mounting hole; 1702. Fourth mounting hole;

[0057] 20. Battery cell; 21. Terminal post;

[0058] 30. Electrical connector; 31. Corner; Detailed implementation manners

[0059] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0060] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0061] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In this application, unless otherwise clearly stipulated and defined, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In this application, unless otherwise clearly stipulated and defined, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0065] As described in the background art, the pole of the battery cell is usually connected to the tab through a welding process. However, in the related art, the tab is prone to move relative to the battery cell, resulting in the problem of inconvenient welding operation of the battery cell in the related art.

[0066] In order to solve the problem of inconvenient welding operation of battery cells in the related art, the present application designs a welding tooling, which can fix the relative positions of the battery cell and the electrical connector, facilitating the welding operation between the battery cell and the electrical connector.

[0067] The welding tooling, welding device and / or battery production equipment disclosed in the embodiments of the present application can be but are not limited to being used in the production of battery cells and / or batteries.

[0068] Figure 1 and Figure 2 FIG. 9 shows a schematic structural diagram of the welding tooling according to an embodiment of the present application from different perspectives.

[0069] Figure 3 FIG. 13 shows a schematic structural diagram of the welding tooling according to an embodiment of the present application when the pressing member is in the first state.

[0070] Please refer to Figures 1 - 3 , an embodiment of the present application provides a welding tooling 10, including a first positioning seat 110, a second positioning seat 120 and a pressing member 130.

[0071] The first positioning seat 110 is provided with a receiving space R for accommodating the battery cell 20 and having an open top. The second positioning seat 120 is disposed on the first positioning seat 110, and the second positioning seat 120 is provided with a placement portion 1201 for placing the electrical connector 30 and located on the top side of the receiving space R. The placement portion 1201 is correspondingly arranged with the pole 21 of the battery cell 20, and is used to make the electrical connector 30 on the placement portion 1201 abut against the pole 21 of the battery cell 20 along the first direction F1.

[0072] The first positioning seat 110 can be an integral structure or can include a plurality of independent seat bodies, as long as it can define the receiving space R for accommodating the battery cell 20 and having an open top.

[0073] The receiving space R refers to a space for at least partially accommodating the battery cell 20 and having an open top.

[0074] The second positioning seat 120 refers to a component disposed on the first positioning seat 110 and used for placing the electrical connector 30.

[0075] The placement portion 1201 refers to a part on the second positioning seat 120 located on the top side of the receiving space R and used for placing the electrical connector.

[0076] "The placement portion 1201 is correspondingly arranged with the pole 21 of the battery cell 20" means that the position of the placement portion 1201 on the second positioning seat 120 is correspondingly arranged according to the position of the pole 21 of the battery cell 20.

[0077] The electrical connector 30 can be a bus bar, such as a copper bus bar or an aluminum bus bar.

[0078] The pressing member 130 is provided on the second positioning seat 120, and the pressing member 130 is configured to be able to abut against the side of the electrical connector 30 facing away from the battery cell 20 along the first direction F1.

[0079] Wherein, the first direction F1 is parallel to the direction from the top of the first positioning seat 110 to the bottom of the first positioning seat 110.

[0080] The pressing member 130 refers to a component provided on the second positioning seat 120 and used to press the side of the electrical connector 30 facing away from the battery cell 20.

[0081] When the welding tooling 10 is in use, the battery cell 20 can be placed in the accommodating space R, and the electrical connector 30 can be placed on the placing portion 1201, so that the pole 21 of the battery cell 20 can be exposed through the opening at the top of the accommodating space R and contact the electrical connector 30 on the placing portion 1201, such that the electrical connector 30 on the placing portion 1201 is provided on the top side of the pole 21. Then, the pressing member 130 abuts against the side of the electrical connector 30 facing away from the battery cell 20 along the first direction F1. In this way, the pressing member 130 of the welding tooling 10 can press the electrical connector 30 along the first direction F1 on the pole 21 of the battery cell 20, so that the relative positions of the battery cell 20 and the electrical connector 30 are fixed to each other, and it is beneficial to the close fit between the pole 21 of the battery cell 20 and the electrical connector 30, facilitating the subsequent welding of the electrical connector 30 to the pole 21 of the battery cell 20 by the welding process, and improving the convenience of the welding operation of the battery cell 20.

[0082] In some embodiments, the pressing member 130 is configured to be operably switchable between a first state and a second state. As Figure 3 shown, when the pressing member 130 is in the first state, the pressing member 130 is separated from the electrical connector 30. As Figure 1 and Figure 2 shown, when the pressing member 130 is in the second state, the pressing member 130 abuts against the side of the electrical connector 30 facing away from the battery cell 20 along the first direction F1.

[0083] Before installing the battery cell 20 in the accommodating space R, the pressing member 130 can be placed in the first state. At this time, the pressing member 130 is separated from the electrical connector 30 and will not interfere with the clamping or installation of the battery cell 20 and the electrical connector 30. It is convenient to first place the battery cell 20 in the accommodating space R, and then place the electrical connector 30 at the placement portion 1201, and then put the pressing member 130 in the second state, so that the pressing member 130 is abutted against the side of the electrical connector 30 away from the battery cell 20 along the first direction F1. In this way, the battery cell 20 and the electrical connector 30 can be fixed, so that the electrical connector 30 can be welded to the pole 21 of the battery cell 20 through a welding process later, which can improve the convenience of the welding operation of the battery cell 20.

[0084] In some embodiments, the pressing member 130 is rotatably disposed on the second positioning seat 120 around an axis parallel to the second direction F2 and is used to switch between a first state and a second state. The first direction F1 and the second direction F2 intersect each other.

[0085] The first direction F1 and the second direction F2 may be perpendicular to each other.

[0086] The pressing member 130 can be rotatably disposed on the second positioning seat 120 around an axis parallel to the second direction F2 via a pin or hinge 170. For example, Figure 4 As shown, the second positioning seat 120 is provided with a first mounting hole 1221. Figure 5 As shown, the pressing member 130 is provided with a second mounting hole 1301. Figure 6 As shown, the hinge 170 is provided with a third mounting hole 1701 corresponding to the first mounting hole 1221, and a fourth mounting hole 1702 corresponding to the second mounting hole 1301, a bolt is threadedly connected to the first mounting hole 1221 and the corresponding third mounting hole 1701, and another bolt is threadedly connected to the second mounting hole 1301 and the corresponding fourth mounting hole 1702, so that the holding member 130 can be rotatably arranged on the second positioning seat 120 around an axis parallel to the second direction F2 through the hinge 170.

[0087] The pressing member 130 can be rotated relative to the second positioning seat 120 around an axis parallel to the second direction F2, so that the pressing member 130 can be switched between the first state and the second state, which also facilitates the welding operation of the battery cell 20.

[0088] In some embodiments, the welding tool 10 further includes a locking member 141 . When the holding member 130 is in the second state, the holding member 130 is fixed on the second positioning seat 120 through the locking member 141 .

[0089] Compared with the method of fixing the pressing member 130 to the second positioning seat 120 by bolt locking, in this application, when the pressing member 130 is in the second state, the pressing member 130 is fixed to the second positioning seat 120 through the locking member 141. When it is necessary to switch the pressing member 130 from the second state to the first state, the locking of the locking member 141 can be cancelled, avoiding the cumbersome process of bolt disassembly, improving the operation convenience of the welding tooling 10, and also being beneficial to improving the assembly efficiency before welding the battery cell 20.

[0090] In some embodiments, as shown in combination with Figure 1 and Figure 7 The locking member 141 includes a first main body portion 1411 provided on the pressing member 130 and a second main body portion 1412 provided on the second positioning seat 120. A first locking portion 1413 is provided on the first main body portion 1411, and a second locking portion 1414 for locking to the first locking portion 1413 is provided on the second main body portion 1412.

[0091] Among them, a plurality of fifth mounting holes 14111 are provided on the first main body portion 1411, a plurality of sixth mounting holes 14121 are provided on the second main body portion 1412, a plurality of seventh mounting holes 1302 corresponding to the plurality of fifth mounting holes 14111 are provided on the pressing member 130, and a plurality of eighth mounting holes 1211 corresponding to the plurality of sixth mounting holes 14121 are provided on the second positioning seat 120. The welding tooling 10 further includes a plurality of locking bolts 142. A locking bolt 142 is threadedly connected to the fifth mounting hole 14111 and the corresponding seventh mounting hole 1302, and another locking bolt 142 is threadedly connected to the sixth mounting hole 14121 and the corresponding eighth mounting hole 1211. In this way, the first main body portion 1411 can be mounted on the pressing member 130, and the second main body portion 1412 can be mounted on the second positioning seat 120.

[0092] The second locking portion 1414 includes a locking handle 14141 rotatably connected to the second main body portion 1412 and a locking hook 14142 connected to the locking handle 14141. A locking groove C adapted to the locking hook 14142 is provided on the first locking portion 1413. By rotating the locking handle 14141, the locking hook 14142 can be driven to lock in the locking groove C on the first locking portion 1413, thereby fixing the pressing member 130 to the second positioning seat 120. The locking handle 14141 can also be rotated in the reverse direction, and then the locking hook 14142 is separated from the locking groove C on the first locking portion 1413, facilitating the release of the locking fixation of the pressing member 130.

[0093] In some embodiments, as shown in Figure 5 The pressing member 130 includes a pressing portion 131 for contacting the electrical connector 30, and a welding opening 1311 for partially exposing the electrical connector 30 is provided on the pressing portion 131.

[0094] During the welding operation, the electrical connector 30 can be welded to the pole 21 of the battery cell 20 through the welding opening 1311. For example, the welding mechanism performing the welding operation is a laser welding mechanism. The laser generated by the welding mechanism can be emitted to the electrical connector 30 through the welding opening 1311 to weld the electrical connector 30 to the pole 21 of the battery cell 20.

[0095] In some embodiments, a welding groove 1312 is recessed on the top of the pressing portion 131 , and a welding opening 1311 passes through a bottom wall of the welding groove 1312 .

[0096] The welding operation between the electrical connector 30 and the pole 21 of the battery cell 20 is facilitated through the welding groove 1312 and the welding opening 1311 provided on the bottom wall of the welding groove 1312 .

[0097] In some embodiments, the side wall of the welding groove 1312 is configured to extend outwardly from the bottom wall of the welding groove 1312 to the groove opening of the welding groove 1312 .

[0098] This is beneficial to improving the strength of the pressing portion 131 , reducing the impact of the welding operation on the pressing portion 131 , and further beneficial to improving the service life of the pressing portion 131 .

[0099] In some embodiments, the pressing portion 131 includes a contact surface 1313 disposed around the welding opening 1311. The contact surface 1313 is used to contact a side of the electrical connector 30 away from the battery cell 20 along the first direction F1.

[0100] On the one hand, it is convenient for the welding mechanism to weld the electrical connector 30 to the pole 21 of the battery cell 20 through the welding opening 1311; on the other hand, since the resistance surface 1313 is arranged around the welding opening 1311, the contact area between the pressing portion 131 and the electrical connector 30 can be increased while adding the welding opening 1311, thereby improving the reliability of the pressing portion 131 pressing on the electrical connector 30 and the pole 21, which is conducive to better welding the electrical connector 30 to the pole 21 of the battery cell 20.

[0101] In some embodiments, the placement portion 1201 is constructed as a placement groove provided on the second positioning seat 120 and used to accommodate the electrical connector 30, the groove opening of the placement groove and the opening of the accommodating space R are connected to each other, and the plane where the groove opening of the placement groove is located and the plane where the opening of the accommodating space R is located are intersecting with each other.

[0102] The placement groove refers to a groove provided on the second positioning seat 120 and used to accommodate the electrical connector 30 .

[0103] In this way, after the electrical connector 30 is placed in the placement groove, the electrical connector 30 can extend through the notch of the placement groove, and the notch of the placement groove is connected to the opening of the accommodating space R, and the plane where the notch of the placement groove is located and the plane where the opening of the accommodating space R is located are intersected with each other. In this way, the part of the electrical connector 30 extending out of the notch of the placement groove can be located on the top side of the battery cell 20, and the extension direction of the part of the electrical connector 30 extending out of the notch of the placement groove can intersect with the height direction of the battery cell 20, so that the part of the electrical connector 30 extending out of the notch of the placement groove is pressed on the pole 21 of the battery cell 20.

[0104] In some embodiments, a side wall of the placement groove is provided with a placement opening 12011 facing the holding member 130 , and the placement opening 12011 and the notch of the placement groove are communicated with each other at adjacent locations.

[0105] The placement opening 12011 refers to an opening disposed on the side wall of the placement groove and disposed toward the holding member 130 .

[0106] After the battery cell 20 is placed in the accommodation space R, the electrical connector 30 can be conveniently placed in the placement groove through the placement opening 12011, and then the pressing member 130 is abutted against the side of the electrical connector 30 away from the battery cell 20 along the first direction F1, so as to facilitate subsequent welding operations. In this way, the placement opening 12011 can improve the convenience of assembling the electrical connector 30.

[0107] In some embodiments, the electrical connector 30 has a corner portion 31 , and the second positioning seat 120 is provided with a retaining groove 1202 for accommodating the corner portion 31 . The retaining groove 1202 is connected to a side of the placement groove away from the notch of the placement groove.

[0108] Specifically, the electrical connector 30 has four corners 31, and two avoidance grooves 1202 are provided on the second positioning seat 120, wherein two corners 31 extend out of the placement groove through the notches of the placement groove to be pressed on the pole 21 of the battery cell 20, and the other two corners 31 are arranged one-to-one corresponding to the two avoidance grooves 1202, and the other two corners 31 are respectively accommodated in the corresponding avoidance grooves 1202.

[0109] The avoidance groove 1202 can be used to accommodate and protect the corner portion 31 of the electrical connector 30 , thereby reducing damage to the electrical connector 30 .

[0110] In some embodiments, the avoidance groove 1202 has an arc-shaped side wall 12021 , and a communication port 12022 communicating with the placement groove is provided between two opposite ends of the arc-shaped side wall 12021 along the arc length direction.

[0111] In this way, the stress concentration of the second positioning seat 120 at the avoiding groove 1202 can be reduced, thereby improving the strength and service life of the avoiding groove 1202.

[0112] In some embodiments, the welding tooling 10 further includes a support member 151 for supporting the battery cell 20. The support member 151 is disposed on the first positioning seat 110 and defines an accommodation space R with the first positioning seat 110. The support member 151 is configured to be movable relative to the first positioning seat 110 along the first direction F1.

[0113] The support member 151 refers to a member disposed on the first positioning seat 110 and used to define the accommodation space R with the first positioning seat 110.

[0114] The battery cell 20 can be placed on the support member 151 and located within the accommodation space R. Since the support member 151 can move relative to the first positioning seat 110 along the first direction F1, the battery cell 20 on the support member 151 can also move relative to the first positioning seat 110 along the first direction F1 as needed, so that the pole columns 21 of the battery cells 20 with different heights can be in contact with the corresponding electrical connectors 30, facilitating the welding operation between the pole columns 21 and the corresponding electrical connectors 30. Therefore, the welding tooling 10 can be applicable to battery cells 20 with different heights, broadening the application range of the welding tooling 10.

[0115] In some embodiments, the welding tooling 10 further includes a first adjusting member 152 extending along the first direction F1. The first adjusting member 152 is disposed on the first positioning seat 110 and is bolted to the support member 151.

[0116] The first adjusting member 152 can be a bolt.

[0117] By rotating the first adjusting member 152, the height of the support member 151 along the first direction F1 can be changed, and then the height of the battery cell 20 along the first direction F1 can be adjusted. In this way, with the first adjusting member 152, the welding tooling 10 can be easily applicable to battery cells 20 with different heights.

[0118] In some embodiments, such as Figure 8As shown, the welding fixture 10 further includes a bushing 154 and a pin 155 fittingly disposed within the bushing 154. The first positioning seat 110 includes a base portion 1111 located at the bottom side of the support member 151. The bushing 154 includes a first head 1541 and a bushing body 1542. A bushing hole 11111 adapted to the bushing body 1542 is provided on the base portion 1111. The bushing body 1542 is disposed within the bushing hole 11111, and the first head 1541 abuts against one side of the base portion 1111 close to the support member 151 along the first direction F1. The pin 155 is disposed through the bushing 154. The first adjusting member 152 includes a connected second head 1521 and a threaded portion 1522. The pin 155 is sleeved on the threaded portion 1522 and is limited to the top side of the second head 1521. The threaded portion 1522 of the first adjusting member 152 passes through the pin 155 and is threadedly connected to the support member 151.

[0119] In this way, the first adjusting member 152 can be disposed on the first positioning seat 110, and the first adjusting member 152 can be rotated relative to the first positioning seat 110, facilitating the adjustment of the height of the battery cell 20 as needed.

[0120] In some embodiments, as Figure 8 and Figure 9 shown, the first positioning seat 110 includes a base portion 1111 located at the bottom side of the support member 151. The welding fixture 10 further includes an elastic member 153. The elastic member 153 is disposed between the base portion 1111 and the support member 151.

[0121] Specifically, one end of the threaded portion 1522 of the first adjusting member 152 passing through the pin 155 passes through the elastic member 153 and is threadedly connected to the support member 151.

[0122] The elastic member 153 can be a spring.

[0123] The elastic member 153 can expand and contract along the first direction F1. The compressed elastic member 153 can be utilized to make the pole 21 of the battery cell 20 better abut against the electrical connector 30, which is conducive to better welding the electrical connector 30 to the pole 21 of the battery cell 20.

[0124] In some embodiments, the first positioning seat 110 includes a first seat body 111 and a second seat body 112 that are opposite and spaced apart along the second direction F2. An accommodation space R is formed between the first seat body 111 and the second seat body 112. The second positioning seat 120 is disposed on the first seat body 111. The first direction F1 and the second direction F2 intersect with each other.

[0125] The first direction F1 and the second direction F2 can be perpendicular to each other. For example, the first direction F1 is parallel to the direction from the top of the first positioning seat 110 to the bottom of the first positioning seat 110 and perpendicular to the bottom surface of the first seat body 111, and the second direction F2 is parallel to the bottom surface of the first seat body 111.

[0126] In this way, the battery cell 20 can be clamped between the first seat body 111 and the second seat body 112 and located within the accommodation space R, thereby improving the installation flexibility of the battery cell 20.

[0127] In some embodiments, the first positioning seat 110 further includes a second adjusting member 113, which is disposed on at least one of the first seat body 111 and the second seat body 112 and is used to adjust the distance between the first seat body 111 and the second seat body 112 along the second direction F2.

[0128] The second adjusting member 113 can be a bolt or other components capable of adjusting the distance between the first seat body 111 and the second seat body 112.

[0129] The distance between the first seat body 111 and the second seat body 112 along the second direction F2 can be adjusted according to the thickness of the battery cell 20, so that the welding tooling 10 can be applicable to battery cells 20 of different thicknesses.

[0130] In some embodiments, the first seat body 111 and the second seat body 112 are detachably connected by the second adjusting member 113.

[0131] The first seat body 111 and the second seat body 112 can be detachably connected by means of threaded connection or a pin shaft.

[0132] After removing the connection between the first seat body 111 and the second seat body 112, the distance between the first seat body 111 and the second seat body 112 along the second direction F2 can be adjusted according to the thickness of the battery cell 20, and then the first seat body 111 and the second seat body 112 are connected to each other. In this way, it is convenient to clamp battery cells 20 of different thicknesses between the first seat body 111 and the second seat body 112 and locate them within the accommodation space R, and the installation flexibility of the battery cell 20 can also be further improved.

[0133] In some embodiments, the first positioning seat 110 further includes a first limiting member 114 and a second limiting member 115 that are opposite and spaced apart along the third direction F3. The first seat body 111, the second seat body 112, the first limiting member 114 and the second limiting member 115 enclose the accommodation space R, and the first direction F1, the second direction F2 and the third direction F3 intersect pairwise.

[0134] The first direction F1, the second direction F2, and the third direction F3 can be perpendicular to each other pairwise. By way of example, the first direction F1 is perpendicular to the bottom surface of the first housing 111, that is, parallel to the height direction of the first housing 111, the third direction F3 is parallel to the length direction of the first housing 111, and the second direction F2 is parallel to the width direction of the first housing 111.

[0135] The first limiting member 114 and the second limiting member 115 are two components respectively limiting the opposite sides of the battery cell 20 along the third direction F3.

[0136] The first housing 111, the second housing 112, the first limiting member 114, and the second limiting member 115 can be used to enclose an accommodation space R, thereby improving the clamping stability of the battery cell 20, and thus being beneficial to better perform the welding operation of the battery cell 20.

[0137] In some embodiments, at least one of the first limiting member 114 and the second limiting member 115 is configured to be movable relative to the first housing 111 or the second housing 112 along the third direction F3.

[0138] It can be that the first limiting member 114 is movable relative to the first housing 111 or the second housing 112 along the third direction F3; it can also be that the second limiting member 115 is movable relative to the first housing 111 or the second housing 112 along the third direction F3; it can also be that both the first limiting member 114 and the second limiting member 115 are movable relative to the first housing 111 or the second housing 112 along the third direction F3.

[0139] In this way, according to the width of the battery cell 20, at least one of the first limiting member 114 and the second limiting member 115 can be moved relative to the first housing 111 or the second housing 112 along the third direction F3, thereby adjusting the distance between the first limiting member 114 and the second limiting member 115 along the third direction F3, so that the welding tooling 10 can be applicable to battery cells 20 with different widths.

[0140] In some embodiments, both the first limiting member 114 and the second limiting member 115 are movable relative to the first housing 111 or the second housing 112 along the third direction F3.

[0141] For different battery cells 20, there are cases where the positions of their pole columns along the third direction F3 are different. In this way, the positions of the first limiting member 114 and the second limiting member 115 along the third direction F3 can be synchronously changed as needed, thereby changing the position of the pole column 21 of the battery cell 20 along the third direction F3, so that the electrical connection member 30 on the placement portion 1201 can press on the pole column 21 of the battery cell 20. In this way, the welding tooling 10 can be applicable to battery cells 20 with different pole column positions.

[0142] In some embodiments, a first step portion 1141 extending along a third direction F3 is provided on the first limiting member 114, and a second step portion adapted to the first step portion 1141 is provided on the first seat body 111.

[0143] In this way, the first limiting member 114 can move relative to the first seat body 111 along the third direction F3 in a directional manner through the first step portion 1141 and the second step portion.

[0144] In some embodiments, a third step portion extending along the third direction F3 is provided on the second limiting member 115, and a fourth step portion adapted to the third step portion is provided on the first seat body 111.

[0145] In this way, the second limiting member 115 can move relative to the first seat body 111 along the third direction F3 in a directional manner through the third step portion and the fourth step portion.

[0146] In some embodiments, along the second direction F2, the first limiting member 114 and the second limiting member 115 are limited between the first seat body 111 and the second seat body 112.

[0147] In this way, after connecting the first seat body 111 and the second seat body 112, the first limiting member 114 and the second limiting member 115 can be positioned and fixed. This can not only limit and fix the battery cell 20 between the first seat body 111 and the second seat body 112, but also limit and fix the battery cell 20 between the first limiting member 114 and the second limiting member 115, improving the installation convenience and reliability of the battery cell 20.

[0148] In some embodiments, the first positioning seat 110 further includes a second adjusting member 113. A first connection hole K1 adapted to the second adjusting member 113 is provided on the first seat body 111, a second connection hole K2 adapted to the second adjusting member 113 is provided on the second seat body 112, and a first through hole K3 extending along the third direction F3 is provided on the first limiting member 114. The second adjusting member 113 passes through the first connection hole K1, the first through hole K3, and the second connection hole K2.

[0149] In this way, according to the width of the battery cell 20, the position of the first limiting member 114 along the third direction F3 can be adjusted. Then, by passing the second adjusting member 113 through the first connection hole K1, the first through hole K3, and the second connection hole K2, the battery cell 20 can be limited and fixed between the first limiting member 114 and the second limiting member 115.

[0150] In some other embodiments, the first positioning seat 110 further includes a second adjusting member 113. A first connection hole K1 adapted to the second adjusting member 113 is provided on the first seat body 111, a second connection hole K2 adapted to the second adjusting member 113 is provided on the second seat body 112, and a second through hole K4 extending along the third direction F3 is provided on the second limiting member 115. The second adjusting member 113 is inserted through the first connection hole K1, the second through hole K4, and the second connection hole K2.

[0151] In this way, according to the width of the battery cell 20, the position of the second limiting member 115 along the third direction F3 can be adjusted. Then, by inserting the second adjusting member 113 through the first connection hole K1, the second through hole K4, and the second connection hole K2, the battery cell 20 can be limited and fixed between the first limiting member 114 and the second limiting member 115.

[0152] In still some other embodiments, the first positioning seat 110 further includes a second adjusting member 113. A plurality of first connection holes K1 adapted to the second adjusting member 113 are provided on the first seat body 111, a plurality of second connection holes K2 adapted to the second adjusting member 113 are provided on the second seat body 112, a first through hole K3 extending along the third direction F3 is provided on the first limiting member 114, and a second through hole K4 extending along the third direction F3 is provided on the second limiting member 115. One second adjusting member 113 is inserted through a corresponding first connection hole K1, the first through hole K3, and a corresponding second connection hole K2, and the other second adjusting member 113 is inserted through a corresponding other first connection hole K1, the second through hole K4, and a corresponding other second connection hole K2.

[0153] Exemplarily, the second adjusting member 113 is a bolt.

[0154] Exemplarily, the number of the second adjusting members 113 is six. Six first connection holes K1 are provided on the first seat body 111, and three of the first connection holes K1 and the other three first connection holes K1 are respectively provided on opposite sides of the first seat body 111 along the third direction F3. Six second connection holes K2 are provided on the second seat body 112, and three of the second connection holes K2 and the other three second connection holes K2 are respectively provided on opposite sides of the second seat body 112 along the third direction F3. Two first through holes K3 are provided on the first limiting member 114, and two second through holes K4 are provided on the second limiting member 115.

[0155] In this way, the position of the pole 21 of the battery cell 20 along the third direction F3 can be adjusted as needed, so that the electrical connector 30 can abut against the pole 21 of the battery cell 20 along the first direction F1.

[0156] In some embodiments, the first seat body 111 includes a base portion 1111 and two side seat portions 1112; the two side seat portions 1112 are arranged at intervals on the top side of the base portion 1111 along the third direction F3, and at least part of the second positioning seat 120 is located between the two side seat portions 1112, wherein the first direction F1, the second direction F2 and the third direction F3 intersect each other.

[0157] The two side seats 1112 are arranged at intervals on the top side of the base portion 1111 along the third direction F3. It can be understood that the first seat body 111 is a substantially C-shaped structure.

[0158] A side gasket 165 is disposed between the side seat 1112 and the second positioning seat 120 to reduce wear between the side seat 1112 and the second positioning seat 120 .

[0159] Since at least part of the second positioning seat 120 is located between the two side seats 1112, it is equivalent to accommodating at least part of the second positioning seat 120 between the two side seats 1112, which can reduce the overall occupied volume of the first positioning seat 110 and the second positioning seat 120, thereby reducing the volume of the welding tool 10.

[0160] In some embodiments, the second positioning seat 120 includes a first portion 121 and a second portion 122. The second portion 122 is connected to the top side of the first portion 121 and abuts against a side of the side seat portion 1112 away from the base portion 1111 along the first direction F1. The placement portion 1201 is disposed on the top side of the second portion 122.

[0161] The first portion 121 and the second portion 122 may be disposed perpendicular to each other, so that the second positioning seat 120 is substantially in an L-shaped structure.

[0162] The first mounting hole 1221 is disposed on the second portion 122 , so as to facilitate the connection between the second portion 122 of the second positioning seat 120 and the holding member 130 through the hinge 170 .

[0163] The first portion 121 is disposed between the two side seats 1112 , and the eighth mounting hole 1211 is disposed on the first portion 121 , so as to facilitate the second main body portion 1412 of the locking member 141 to be mounted on the first portion 121 .

[0164] In some embodiments, the battery cell 20 includes two poles 21, the welding tool 10 includes two second positioning seats 120 arranged on the first seat body 111 along the third direction F3, each second positioning seat 120 is provided with a placement portion 1201, and the welding tool 10 includes two pressing members 130 corresponding to the two second positioning seats 120, and the first direction F1, the second direction F2 and the third direction F3 intersect each other. The first direction F1, the second direction F2 and the third direction F3 can be perpendicular to each other.

[0165] In this way, each pressing member 130 can press the corresponding electrical connecting member 30 against a corresponding pole 21 on the battery cell 20 in the first direction F1, so that the relative positions of the battery cell 20 and the electrical connecting member 30 are fixed to each other, facilitating subsequent welding of the electrical connecting member 30 to the corresponding pole 21 by a welding process and facilitating welding of the two poles 21 respectively.

[0166] In some embodiments, the welding tooling 10 further includes at least one heightening member 161. The heightening member 161 is supported and provided on the bottom side of the corresponding second positioning seat 120, and at least one heightening member 161 is used to make the heights of the two placing portions 1201 in the first direction equal.

[0167] By arranging an appropriate number of heightening members 161 on the second positioning seat 120, the heights of the placing portions 1201 on the two second positioning seats 120 in the first direction F1 can be made equal, and the heights of the electrical connecting members 30 on the two second positioning seats 120 in the first direction F1 can also be made equal, facilitating the two electrical connecting members 30 to be respectively pressed against the corresponding poles 21 in the first direction F1 and facilitating welding of the two poles 21 respectively.

[0168] In some embodiments, the heightening member 161 is provided with a third through hole 1611, and the third through hole 1611 is configured to extend in the third direction F3.

[0169] Exemplarily, the third through hole 1611 is configured as a semi-elliptical hole.

[0170] In some embodiments, the second positioning seat 120 is configured to be movable relative to the first positioning seat 110 in the third direction F3.

[0171] It may be that both of the two second positioning seats 120 are movable relative to the first positioning seat 110 in the third direction F3, or it may be that one of the positioning seats 120 is movable relative to the first positioning seat 110 in the third direction F3.

[0172] The position of the second positioning seat 120 in the third direction F3 can be changed according to the position of the pole 21, so that the electrical connecting member 30 can be pressed against the corresponding pole 21 in the first direction F1, facilitating welding of the two poles 21 respectively. In this way, the welding tooling 10 can be applicable to battery cells 20 with different pole positions.

[0173] In some embodiments, the welding tooling 10 further includes a third adjusting member 162 extending in the third direction F3. The third adjusting member 162 is provided on the first positioning seat 110 and is threadedly connected to the second positioning seat 120.

[0174] The third adjusting member 162 can be a bolt. A first threaded hole 1212 adapted to the third adjusting member 162 is provided on the second positioning seat 120. The first threaded hole 1212 is provided on the first part 121. A first stepped hole K5 is provided on the first positioning seat 110. The head of the third adjusting member 162 abuts against the stepped surface of the first stepped hole K5 along the third direction F3. The threaded section of the third adjusting member 162 passes through the first stepped hole K5 and is threadedly connected to the first threaded hole 1212.

[0175] The position of the second positioning seat 120 along the third direction F3 can be adjusted by the third adjusting member 162, so that the welding tooling 10 can be applicable to battery cells 20 with different pole post positions.

[0176] In some embodiments, the welding tooling 10 further includes a first positioning member 163 extending along the first direction F1 and a second positioning member 164 extending along the third direction F3. The first positioning member 163 penetrates through the first positioning seat 110 along the first direction F1 and abuts against the second positioning seat 120 along the first direction F1. The second positioning member 164 penetrates through the first positioning seat 110 along the third direction F3 and abuts against the second positioning seat 120 along the third direction F3. The first direction F1 and the third direction F3 intersect with each other.

[0177] Specifically, the first positioning member 163 penetrates through the base portion 1111 of the first seat body 111 of the first positioning seat 110 along the first direction F1 and abuts against the second positioning seat 120 along the first direction F1. The second positioning member 164 penetrates through the side seat portion 1112 of the first seat body 111 of the first positioning seat 110 along the third direction F3 and abuts against the second positioning seat 120 along the third direction F3.

[0178] In this way, the second positioning seat 120 can be fixed on the first positioning seat 110 by using the first positioning member 163 and the second positioning member 164 in different directions, and the installation stability of the second positioning seat 120 can be improved.

[0179] In some embodiments, the first positioning member 163 penetrates through the first positioning seat 110 movably along the first direction F1, and the second positioning member 164 penetrates through the first positioning seat 110 movably along the third direction F3.

[0180] Specifically, the first positioning member 163 is a bolt, and a second threaded hole (not shown in the figure) adapted to the first positioning member 163 is provided on the base portion 1111 of the first seat body 111 of the first positioning seat 110. The second positioning member 164 is a bolt, and a second stepped hole K6 and a third threaded hole (not shown in the figure) communicating with each other in sequence are provided on the side seat portion 1112 of the first seat body 111 of the first positioning seat 110. The head of the second positioning member 164 abuts against the stepped surface of the second stepped hole K6 along the third direction F3, and the threaded section of the third adjusting member 162 passes through the second stepped hole K6 and is threadedly connected to the third threaded hole.

[0181] In this way, when it is necessary to adjust the position of the second positioning seat 120 along the third direction F3 or disassemble the second positioning seat 120, the first positioning member 163 can be moved along the first direction F1 toward the side away from the second positioning seat 120, or the second positioning member 164 can be moved along the third direction F3 toward the side away from the second positioning seat 120, so as to release the limit fixation of the first positioning member 163 and the second positioning member 164 on the second positioning seat 120 for subsequent operations.

[0182] In some embodiments, the battery cell 20 includes two pole posts 21, two placing portions 1201 corresponding to the two pole posts 21 one by one are provided on the second positioning seat 120, and the welding tooling 10 includes two pressing members 130 corresponding to the two placing portions 1201 one by one.

[0183] The second positioning seat 120 can be an integral body, and each pressing member 130 can press on the electrical connection member 30 on the corresponding placing portion 1201 to weld the two pole posts 21 respectively.

[0184] In other embodiments, the battery cell 20 includes two pole posts 21, the welding tooling 10 includes two second positioning seats 120 corresponding to the two pole posts 21 one by one, and each second positioning seat 120 is provided with a placing portion 1201; the welding tooling 10 includes two pressing members 130 corresponding to the two placing portions 1201 one by one.

[0185] Two second positioning seats 120 are provided, which can improve the assembly flexibility of the two second positioning seats 120. For example, they can be correspondingly arranged according to the positions of the two pole posts 21 respectively, so that each pressing member 130 presses on the electrical connection member 30 on the corresponding placing portion 1201 to weld the two pole posts 21 respectively.

[0186] The welding tooling 10 of the present application can be applicable to the welding operations of battery cells 20 with different heights, can also be applicable to the welding operations of battery cells 20 with different pole post positions, can also be applicable to the welding operations of battery cells 20 with different widths, and can also be applicable to the welding operations of battery cells 20 with different thicknesses, which can broaden the application range of the welding tooling 10.

[0187] An embodiment of the present application provides a welding device, including the welding tooling 10 of any one of the above embodiments and a welding mechanism.

[0188] The welding operation between the battery cell 20 on the welding tooling 10 and the corresponding electrical connector 30 can be realized through the welding mechanism.

[0189] An embodiment of the present application provides a battery production device, including the above welding device.

[0190] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0191] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A welding tool (10), characterized in that: include: A first positioning seat (110), the first positioning seat (110) being provided with a receiving space (R) for receiving a battery cell (20) and having an open top; A second positioning seat (120) is arranged on the first positioning seat (110), and the second positioning seat (120) is provided with a placement portion (1201) for placing the electrical connector (30) and located at the top side of the accommodation space (R); the placement portion (1201) is arranged corresponding to the pole (21) of the battery cell (20) and is used to make the electrical connector (30) on the placement portion (1201) abut against the pole (21) of the battery cell (20) along a first direction; and A holding member (130) is disposed on the second positioning seat (120) and is configured to be able to abut against a side of the electrical connector (30) away from the battery cell (20) along the first direction; The first direction is parallel to the direction from the top of the first positioning seat (110) to the bottom of the first positioning seat (110).

2. The welding tool (10) according to claim 1, characterized in that: The pressing member (130) is configured to be operable to switch between a first state and a second state; When the pressing member (130) is in the first state, the pressing member (130) is separated from the electrical connecting member (30); When the pressing member (130) is in the second state, the pressing member (130) abuts against a side of the electrical connector (30) facing away from the battery cell (20) along the first direction.

3. The welding tool (10) according to claim 2, characterized in that: The holding member (130) is rotatably disposed on the second positioning seat (120) around an axis parallel to the second direction, and is used to switch between the first state and the second state; The first direction and the second direction intersect each other.

4. The welding tool (10) according to claim 2, characterized in that: The welding tool (10) further comprises a locking member (141), and when the holding member (130) is in the second state, the holding member (130) is fixed to the second positioning seat (120) via the locking member (141).

5. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The pressing member (130) comprises a pressing portion (131) for contacting the electrical connector (30), and the pressing portion (131) is provided with a welding opening (1311) for partially exposing the electrical connector (30).

6. The welding tool (10) according to claim 5, characterized in that: A welding groove (1312) is concavely provided at the top of the pressing portion (131), and the welding opening (1311) penetrates through the bottom wall of the welding groove (1312).

7. The welding tool (10) according to claim 6, characterized in that: The pressing portion (131) comprises a contact surface (1313) arranged around the welding opening (1311); The abutment surface (1313) is used to abut against a side of the electrical connector (30) facing away from the battery cell (20) along the first direction.

8. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The placement portion (1201) is constructed as a placement groove provided on the second positioning seat (120) and used to accommodate the electrical connector (30), the notch of the placement groove and the opening of the accommodating space (R) being connected to each other, and the plane where the notch of the placement groove is located and the plane where the opening of the accommodating space (R) is located are arranged to intersect with each other.

9. The welding tool (10) according to claim 8, characterized in that: The side wall of the placement groove is provided with a placement opening (12011) facing the holding member (130), and the placement opening (12011) and the notch of the placement groove are communicated with each other at adjacent locations.

10. The welding tool (10) according to claim 8, characterized in that: The electrical connector (30) has a corner portion (31); the second positioning seat (120) is provided with a relief groove (1202) for accommodating the corner portion (31); the relief groove (1202) is connected to a side of the placement groove away from the notch of the placement groove.

11. The welding tool (10) according to claim 10, characterized in that: The avoidance groove (1202) has an arc-shaped side wall (12021), and a communication port (12022) communicating with the placement groove is provided between two opposite ends of the arc-shaped side wall (12021) along the arc length direction.

12. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The welding tool (10) further comprises a support member (151) for supporting the battery cell (20); The support member (151) is disposed on the first positioning seat (110), and defines the accommodation space (R) together with the first positioning seat (110); The support member (151) is configured to be movable relative to the first positioning seat (110) along the first direction.

13. The welding tool (10) according to claim 12, characterized in that: The welding tool (10) further comprises a first adjusting member (152) extending along the first direction; The first adjusting member (152) is disposed on the first positioning seat (110) and is threadedly connected to the supporting member (151).

14. The welding tool (10) according to claim 12, characterized in that: The first positioning seat (110) comprises a base portion (1111) located at the bottom side of the support member (151); The welding tool (10) further comprises an elastic member (153), wherein the elastic member (153) is arranged between the base portion (1111) and the support member (151).

15. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The first positioning seat (110) comprises a first seat body (111) and a second seat body (112) which are arranged opposite to each other and spaced apart in a second direction, and the accommodation space (R) is formed between the first seat body (111) and the second seat body (112); The second positioning seat (120) is arranged on the first seat body (111); The first direction and the second direction intersect each other.

16. The welding tool (10) according to claim 15, characterized in that: The first positioning seat (110) further comprises a second adjusting member (113), wherein the second adjusting member (113) is arranged on at least one of the first seat body (111) and the second seat body (112), and is used for adjusting the distance between the first seat body (111) and the second seat body (112) along the second direction.

17. The welding tool (10) according to claim 16, characterized in that: The first seat body (111) and the second seat body (112) are detachably connected via the second adjusting member (113).

18. The welding tool (10) according to claim 15, characterized in that: The first positioning seat (110) further comprises a first limiting member (114) and a second limiting member (115) which are arranged opposite to each other and spaced apart along a third direction; The first seat body (111), the second seat body (112), the first limiting member (114) and the second limiting member (115) enclose the accommodation space (R); The first direction, the second direction and the third direction intersect each other.

19. The welding tool (10) according to claim 18, characterized in that: At least one of the first limiting member (114) and the second limiting member (115) is configured to be movable along the third direction relative to the first seat body (111) or the second seat body (112).

20. The welding tool (10) according to claim 18, characterized in that: Along the second direction, the first limiting member (114) and the second limiting member (115) are limited between the first seat body (111) and the second seat body (112).

21. The welding tool (10) according to claim 20, characterized in that: The first positioning seat (110) further includes a second adjusting member (113); The first seat body (111) is provided with a first connecting hole (K1) adapted to the second adjusting member (113); The second seat body (112) is provided with a second connecting hole (K2) adapted to the second adjusting member (113); The first limiting member (114) is provided with a first through hole (K3) extending along the third direction, and the second adjusting member (113) is passed through the first connecting hole (K1), the first through hole (K3) and the second connecting hole (K2); and / or the second limiting member (115) is provided with a second through hole (K4) extending along the third direction, and the second adjusting member (113) is passed through the first connecting hole (K1), the second through hole (K4) and the second connecting hole (K2).

22. The welding tool (10) according to claim 15, characterized in that: The first seat body (111) comprises a base portion (1111) and two side seat portions (1112); the two side seat portions (1112) are arranged at intervals on the top side of the base portion (1111) along a third direction; At least a portion of the second positioning seat (120) is located between the two side seat portions (1112); The first direction, the second direction and the third direction intersect each other.

23. The welding tool (10) according to claim 15, characterized in that: The battery cell (20) comprises two poles (21); The welding tool (10) comprises two second positioning seats (120) arranged on the first seat body (111) at intervals along a third direction, and each of the second positioning seats (120) is provided with a placement portion (1201); The welding tool (10) comprises two holding members (130) corresponding one-to-one to the two second positioning seats (120); The first direction, the second direction and the third direction intersect each other.

24. The welding tool (10) according to claim 23, characterized in that: The welding tool (10) further comprises at least one raising member (161); The padding member (161) is supported on the bottom side of the corresponding second positioning seat (120), and the at least one padding member (161) is used to make the heights of the two placement portions (1201) equal along the first direction.

25. The welding tool (10) according to claim 23, characterized in that: The second positioning seat (120) is configured to be movable relative to the first positioning seat (110) along the third direction.

26. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The second positioning seat (120) is configured to be movable along a third direction relative to the first positioning seat (110); The first direction and the third direction intersect each other.

27. The welding tool (10) according to claim 26, characterized in that: The welding tool (10) further comprises a third adjusting member (162) extending along the third direction; The third adjusting member (162) is disposed on the first positioning seat (110) and is threadedly connected to the second positioning seat (120).

28. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The welding tool (10) further comprises a first positioning member (163) extending along the first direction, and a second positioning member (164) extending along a third direction; The first positioning member (163) is disposed through the first positioning seat (110) along the first direction, and abuts against the second positioning seat (120) along the first direction; The second positioning member (164) is disposed through the first positioning seat (110) along the third direction, and abuts against the second positioning seat (120) along the third direction; The first direction and the third direction intersect each other.

29. The welding tool (10) according to claim 28, characterized in that The first positioning member (163) is movably disposed in the first positioning seat (110) along the first direction; The second positioning member (164) is movably disposed in the first positioning seat (110) along the third direction.

30. The welding tool (10) according to any one of claims 1 to 4, characterized in that: The battery cell (20) comprises two poles (21); The second positioning seat (120) is provided with two placement portions (1201) corresponding one-to-one to the two poles (21); the welding tool (10) includes two pressing members (130) corresponding one-to-one to the two placement portions (1201); or, the welding tool (10) includes two second positioning seats (120) corresponding one-to-one to the two poles (21), each second positioning seat (120) being provided with a placement portion (1201); the welding tool (10) includes two pressing members (130) corresponding one-to-one to the two placement portions (1201).

31. A welding device, characterized in that: It comprises a welding tool (10) as described in any one of claims 1 to 30.

32. A battery production device, characterized in that: Comprising a welding device as claimed in claim 31.

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