Laser welding auxiliary assembly, laser welding equipment and battery production equipment

Abstract

The utility model relates to the technical field of battery production, in particular to a laser welding auxiliary assembly, laser welding equipment and battery production equipment. The laser welding auxiliary assembly comprises an auxiliary beam, a first through hole is formed in the auxiliary beam, and the first through hole is a long-strip-shaped hole in the first direction. The baffle is connected with the auxiliary beam, the baffle is arranged on the side, in the second direction, of the auxiliary beam, a second through hole is formed in the baffle, and at least part of the second through hole and the first through hole are oppositely arranged, so that the laser sequentially penetrates through the second through hole and the first through hole in the second direction; wherein the first direction is the length direction of the auxiliary beam, and the second direction intersects with the first direction. When the single battery is replaced, the auxiliary beam does not need to be replaced, and the position of the laser emitted to the single battery can be adjusted only by replacing the baffle, so that the procedure required for replacing the specification of the single battery is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a laser welding auxiliary component, laser welding equipment and battery production equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] The laser welding equipment includes a laser welding auxiliary component, which is used to weld the battery cells. The laser welding auxiliary component includes an auxiliary beam and a baffle, which are connected to the auxiliary beam. The laser passes through the auxiliary beam and the baffle in turn and then shoots toward the workpiece to achieve welding.

[0004] However, since there are many specifications of battery cells, when the specifications of the battery cells are changed, the auxiliary beams and baffles need to be replaced, which is a cumbersome process. Utility Model Content

[0005] In view of the above problems, the present application provides a laser welding auxiliary component, laser welding equipment and battery production equipment, which solves the problem in the prior art that when changing the specifications of the battery cell, the auxiliary beam and the baffle need to be replaced, resulting in cumbersome procedures.

[0006] The first aspect of the present application provides a laser welding auxiliary component, the laser welding auxiliary component comprising:

[0007] An auxiliary beam, wherein a first through hole is provided on the auxiliary beam, and the first through hole is an elongated hole along a first direction;

[0008] A baffle connected to the auxiliary beam, the baffle is arranged on one side of the auxiliary beam along the second direction, and a second through hole is provided on the baffle, at least part of the second through hole and the first through hole are arranged opposite to each other, so that the laser passes through the second through hole and the first through hole in sequence along the second direction; wherein the first direction is the length direction of the auxiliary beam, and the second direction intersects with the first direction.

[0009] In the embodiment of the present application, a first through hole is provided on the auxiliary beam of the laser welding auxiliary component, and the first through hole is provided as a long strip hole. Therefore, when replacing a battery cell, there is no need to replace the auxiliary beam. The position of the laser directed to the battery cell can be adjusted by only replacing the baffle, thereby simplifying the process required for replacing the specifications of the battery cell.

[0010] In some embodiments of the present application, a groove is provided on the auxiliary beam, the first through hole is arranged in the groove; and the baffle is arranged in the groove.

[0011] In the embodiment of the present application, a groove is arranged on the auxiliary beam, wherein the first through hole is arranged in the groove, and the baffle is also arranged in the groove. Then, the baffle can be installed in the groove, and the baffle can be limited by the groove, thereby facilitating stable fixation of the baffle.

[0012] In some embodiments of the present application, the number of the grooves is at least two, and at least two grooves are arranged at intervals along the first direction; each groove can accommodate the baffle.

[0013] In the embodiment of the present application, by setting the number of grooves to at least two, and at least two grooves are spaced apart along the first direction, and each groove can accommodate a baffle, it is possible to simultaneously weld two adapter plates of a battery cell along the length direction, and simultaneously weld multiple battery cells, thereby improving the efficiency of welding the battery cells.

[0014] In some embodiments of the present application, two ends of the first through hole along the first direction are arc-shaped; and the second through hole is a circular hole.

[0015] In the embodiment of the present application, the two ends of the first through hole along the first direction are arc-shaped; the second through hole is set as a circular hole, so that when the end positions of the second through hole and the first through hole are aligned, the probability of the auxiliary beam blocking the second through hole can be reduced.

[0016] In some embodiments of the present application, the laser welding auxiliary component also includes a welding part connected to the baffle, the welding part is arranged on the side of the baffle away from the auxiliary beam, and at least one third through hole is provided on the welding part, and each third through hole is arranged opposite to a corresponding second through hole.

[0017] The embodiment of the present application arranges a welding part connected to the baffle, wherein the welding part is arranged on the side away from the auxiliary beam, and at least one third through hole is provided on the welding part, and each third through hole is arranged opposite to a corresponding second through hole. In this way, the laser can pass through the second through hole and then be emitted from the third through hole to the battery cell, thereby realizing welding of the battery cell.

[0018] In some embodiments of the present application, the weldment includes a connecting plate and at least two welding heads, and two adjacent welding heads are connected by the connecting plate.

[0019] The embodiment of the present application provides a connecting plate and at least two welding heads, and two adjacent welding heads are connected by the connecting plate, so that the installation of at least two welding heads can be achieved simultaneously. Compared with the structure of a single welding head, the installation of the welding heads can be facilitated.

[0020] In some embodiments of the present application, the laser welding auxiliary assembly further includes a dust removal piece, which is connected to the auxiliary beam and is disposed on a side of the auxiliary beam facing away from the baffle.

[0021] In the embodiment of the present application, a dust removal component connected to the auxiliary beam is provided, and the dust removal component is provided on the side of the auxiliary beam away from the baffle, so that the gas and dust generated during the welding process can be discharged through the dust removal component.

[0022] In some embodiments of the present application, the dust removal component includes a dust removal cover connected to the auxiliary beam; and a dust removal pipe connected to the dust removal cover, and the interior of the dust removal pipe is connected to the interior of the dust removal cover.

[0023] In the embodiment of the present application, a dust removal pipe is provided and a dust removal hood is connected to the auxiliary beam, wherein the dust removal pipe is connected to the dust removal hood and the interior of the dust removal pipe is communicated with the interior of the dust removal hood. The connection with the auxiliary beam can be achieved through the dust removal hood, and the discharge of gas and dust can be achieved through the dust removal pipe.

[0024] The second aspect of the present application provides a laser welding device, comprising:

[0025] As mentioned in the above embodiment, the laser welding auxiliary component; and a laser emitter for generating laser light, the laser light sequentially passes through the second through hole and the first through hole of the laser welding auxiliary component.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 A schematic diagram of the structure of a laser welding auxiliary component provided in some embodiments of the present application;

[0029] Figure 2 for Figure 1 A local enlarged structural schematic diagram of the laser welding auxiliary component at A shown in FIG.

[0030] Figure 3 for Figure 1 A schematic diagram of the local enlarged structure of the laser welding auxiliary component at B shown in FIG.

[0031] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the laser welding auxiliary component shown in the second viewing angle;

[0032] Figure 5 for Figure 1 A schematic diagram of the stereoscopic structure of the laser welding auxiliary component shown in FIG. 1 is in a third viewing angle;

[0033] Figure 6 A schematic diagram (partial) of the structure of a laser welding device provided in some embodiments of the present application.

[0034] The reference numerals are as follows:

[0035] 1000. Laser welding equipment

[0036] 100. Laser welding auxiliary components;

[0037] 10. auxiliary beam; 11. groove; 111. first through hole; 12. main body; 121. first connecting hole;

[0038] 20. baffle; 21. second through hole; 22. second connecting hole; 23. third connecting hole;

[0039] 30. welding part; 31. welding head; 32. connecting plate; 321. fourth connecting hole; 33. third through hole;

[0040] 40. dust removal part; 41. dust removal cover; 42. dust removal pipe; 421. connecting section; 422. circulation section;

[0041] 50. Airway;

[0042] 60. Fixing parts;

[0043] 70. Mounting plate;

[0044] 200. Laser transmitter. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0047] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0052] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0054] The battery involved in the embodiment of the present application can be used in, but not limited to, electric devices such as vehicles, ships or aircraft. The battery comprising the battery cell, battery pack, etc. involved in the present application can be used to form the electric device.

[0055] In the embodiments of the present application, the electric devices using batteries as power sources may be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0056] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electrical equipment described above, but can also be applied to all batteries including a box and electrical equipment using the battery.

[0057] In the production process of batteries, laser welding equipment is used to weld battery cells. The laser welding equipment includes a laser welding auxiliary component, which is used to weld battery cells. The laser welding auxiliary component includes an auxiliary beam and a baffle, which is connected to the auxiliary beam. The laser passes through the auxiliary beam and the baffle in turn and then shoots to the workpiece to achieve welding.

[0058] However, usually, the auxiliary beam and the baffle are matched with a battery cell of a certain specification. Since there are many specifications of battery cells, when the specifications of the battery cells are replaced, the auxiliary beam and the baffle need to be replaced at the same time, which is a cumbersome process.

[0059] In order to solve this problem, an embodiment of the present application proposes a laser welding auxiliary component, which includes an auxiliary beam and a baffle connected to the auxiliary beam, the auxiliary beam is provided with a first through hole, and the first through hole is a long hole along the first direction; the baffle is arranged on one side of the auxiliary beam along the second direction, and the baffle is provided with a second through hole, at least part of the second through hole and the first through hole are arranged relative to each other, so that the laser passes through the second through hole and the first through hole in sequence along the second direction. Since the first through hole is set as a long hole in the embodiment of the present application, when replacing the battery cell, there is no need to replace the auxiliary beam. Only by replacing the baffle can the position of the laser directed to the battery cell be adjusted, thereby simplifying the process required for replacing the specifications of the battery cell.

[0060] The laser welding auxiliary component in the embodiment of the present application can be used on the laser welding equipment, and can also be installed on the fixture used to fix the battery cell, so as to facilitate the welding of the battery cell after the laser passes through.

[0061] The structure in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0062] The first aspect of the present application provides a laser welding auxiliary component 100, such as Figures 1 to 5 As shown, the laser welding auxiliary component 100 includes an auxiliary beam 10 and a baffle 20 connected to the auxiliary beam 10, the auxiliary beam 10 is provided with a first through hole 111, and the first through hole 111 is a long hole along the first direction; the baffle 20 is arranged on one side of the auxiliary beam 10 along the second direction, and the baffle 20 is provided with a second through hole 21, at least part of the second through hole 21 and the first through hole 111 are arranged opposite to each other, so that the laser passes through the second through hole 21 and the first through hole 111 in sequence along the second direction; wherein the first direction is the length direction of the auxiliary beam 10, and the second direction intersects with the first direction.

[0063] exist Figure 1 In the diagram, the first direction is the XX direction and the second direction is the YY direction.

[0064] It should be noted that the auxiliary beam 10 extends along the first direction XX, and the auxiliary beam 10 includes a main body 12, which is a plate-like structure, and a groove-like structure or a hole-like structure can be processed on the main body 12. Figure 1 As shown, the main body 12 is provided with a plurality of first connection holes 121 , so that the main body 12 can be conveniently connected with other components, thereby fixing the auxiliary beam 10 .

[0065] The baffle 20 here is also a plate-shaped structure, which can cooperate with the auxiliary beam 10 so that the emission position of the laser can be adjusted after the second through hole 21 and the first through hole 111 are arranged correspondingly.

[0066] Optionally, the baffle 20 is further provided with a second connection hole 22 and a third connection hole 23, which can realize the connection between the baffle 20 and other components, such as the connection between the baffle 20 and the auxiliary beam 10, or the connection between the baffle 20 and other components.

[0067] The number of the third connection holes 23 can be multiple, and the multiple third connection holes 23 are arranged at intervals on the baffle 20 along the XX direction.

[0068] In the embodiment of the present application, a first through hole 111 is set on the auxiliary beam 10 of the laser welding auxiliary component 100, and the first through hole 111 is set as a long strip hole. Therefore, when replacing a battery cell, there is no need to replace the auxiliary beam 10. Only by replacing the baffle 20, the position of the laser directed to the battery cell can be adjusted, thereby simplifying the process required for replacing the specifications of the battery cell.

[0069] It should be emphasized that the baffle 20 can be of multiple types, and each baffle 20 is provided with a second through hole 21 at a different position, so that the corresponding baffle 20 can be selected according to the specifications of the battery cell. After the corresponding baffle 20 is connected to the auxiliary beam 10, the position of the second through hole 21 is adjusted so that the overlapping position of the second through hole 21 and the first through hole 111 is different, thereby adjusting the laser emission position, thereby realizing welding of battery cells of different specifications.

[0070] Alternatively, if Figures 1 to 3 As shown, the auxiliary beam 10 is provided with a groove 11, and the first through hole 111 is arranged in the groove 11; the baffle 20 is arranged in the groove 11. Figure 1 In the figure, the baffle 20 is not placed in the groove 11 located on the far right, and the baffles 20 are arranged in the other three grooves 11.

[0071] The groove 11 here is a groove-like structure, which can be determined according to the shape of the baffle 20. For example, when the baffle 20 is a rectangular plate, the groove 11 is a rectangular groove; when the baffle 20 is a circular groove, the groove 11 is a circular groove. Other cases are not given examples here.

[0072] In the embodiment of the present application, a groove 11 is provided on the auxiliary beam 10, wherein the first through hole 111 is provided in the groove 11, and the baffle 20 is also provided in the groove 11. Then, the baffle 20 can be installed in the groove 11, and the baffle 20 can be limited by the groove 11, so that the baffle 20 can be stably fixed.

[0073] Alternatively, if Figure 1 As shown, the number of the grooves 11 is at least two, and at least two grooves 11 are arranged at intervals along the first direction. Figure 1 In the embodiment, the number of the grooves 11 is four; each groove 11 can accommodate the baffle 20.

[0074] It should be noted that the two adapters of the battery cell along the length direction can be welded simultaneously. At this time, the two adjacent grooves 11 can weld the two adapters of the same battery cell simultaneously. In order to weld multiple battery cells simultaneously, the number of grooves 11 can be set to an even number, such as two, four or six grooves 11, etc., and one battery cell, two battery cells or three battery cells can be welded simultaneously, thereby improving the welding efficiency of the laser welding equipment 1000. In the embodiment of the present application, by setting the number of grooves 11 to at least two, and at least two grooves 11 are arranged at intervals along the first direction, and each groove 11 can accommodate the baffle 20, it is possible to achieve the simultaneous welding of the two adapters of the battery cell along the length direction, and can weld multiple battery cells simultaneously, thereby improving the efficiency of welding the battery cell. The battery cell mentioned here is usually a square structure, so the length direction of the battery cell is consistent with the XX direction, and the two adapters of a battery cell are laser welded at the same time.

[0075] Alternatively, if Figure 1 and Figure 2 As shown, both ends of the first through hole 111 along the first direction are arc-shaped; and the second through hole 21 is a circular hole.

[0076] In this example, the first through hole 111 is a waist-shaped hole, that is, a runway-shaped structure. Considering that bolts and other connecting parts are usually cylindrical structures, the two ends of the first through hole 111 along the first direction are arc-shaped. Compared with the rectangular first through hole 111, the auxiliary beam 10 can adapt to battery cells of more specifications, thereby improving the compatibility of the auxiliary beam 10.

[0077] Preferably, the radius of the circular hole is consistent with the radius of the arc, so that the curvature of the circular hole and the arc at both ends of the first through hole 111 along the first direction are consistent, which facilitates reducing the probability of the laser being blocked by the auxiliary beam 10 after passing through the second through hole 21.

[0078] In the embodiment of the present application, the two ends of the first through hole 111 along the first direction are arc-shaped; the second through hole 21 is set as a circular hole. This can make the end positions of the second through hole 21 and the first through hole 111 aligned, thereby reducing the probability of the main body 12 of the auxiliary beam 10 blocking the second through hole 21.

[0079] Alternatively, if Figure 1 and Figure 3 As shown, the laser welding auxiliary component 100 also includes a welding part 30 connected to the baffle 20, the welding part 30 is arranged on the side of the baffle 20 away from the auxiliary beam 10, and at least one third through hole 33 is provided on the welding part 30, and each third through hole 33 is arranged opposite to a corresponding second through hole 21.

[0080] It should be noted that after being emitted, the laser needs to pass through the first through hole 111, the second through hole 21 and the third through hole 33 before it can be emitted to the battery cell. Therefore, the welding part 30 here can further limit the emission position of the laser through the third through hole 33, thereby more accurately limiting the emission position of the laser.

[0081] The embodiment of the present application provides a welding piece 30 connected to the baffle 20, wherein the welding piece 30 is provided on a side away from the auxiliary beam 10, and at least one third through hole 33 is provided on the welding piece 30, and each third through hole 33 is arranged opposite to a corresponding second through hole 21, so that the laser can pass through the second through hole 21 and then be emitted from the third through hole 33 to the battery cell, thereby realizing welding of the battery cell.

[0082] Optionally, continue to refer to Figure 1 and Figure 3 As shown, the welding member 30 includes a connecting plate 32 and at least two welding heads 31 , and two adjacent welding heads 31 are connected by the connecting plate 32 .

[0083] It should be noted that the third through hole 33 is provided on the welding head 31 , and the welding head 31 is a funnel-shaped structure or a trumpet-shaped structure as a whole. The third through hole 33 is located at the end of the YY direction, and the laser can be directly emitted from the third through hole 33 to the battery cell.

[0084] In addition, the connecting plate 32 here is a plate-like structure, which can connect the two welding heads 31 together to form an integral structure, wherein a fourth connecting hole 321 is provided on the connecting plate 32, and the fourth connecting hole 321 can be set in correspondence with the first connecting hole 121, and connected by connecting members such as screws. The first connecting hole 121 here can be set on a protruding structure formed on the main body 12, or can be directly set on the main body 12, which is not specifically limited here.

[0085] In the embodiment of the present application, by providing a connecting plate 32 and at least two welding heads 31, and two adjacent welding heads 31 are connected by the connecting plate 32, the installation of at least two welding heads 31 can be realized at the same time. Compared with the structure of a single welding head 31, the installation of the welding heads 31 can be realized conveniently.

[0086] Alternatively, as in 1 and Figure 5 As shown, the laser welding auxiliary assembly 100 further includes a dust removal member 40 , which is connected to the auxiliary beam 10 and is disposed on a side of the auxiliary beam 10 away from the baffle 20 .

[0087] In this embodiment, the dust removal member 40 and the baffle 20 are respectively arranged on both sides of the auxiliary beam 10 along the YY direction, which can realize a reasonable layout of the laser welding auxiliary component 100 and make more compact use of space.

[0088] In the embodiment of the present application, a dust removal member 40 connected to the auxiliary beam 10 is provided, and the dust removal member 40 is provided on the side of the auxiliary beam 10 away from the baffle 20 , so that the gas and dust generated during the welding process can be discharged through the dust removal member 40 .

[0089] Alternatively, if Figure 5 As shown, the dust removal component 40 includes a dust removal cover 41 and a dust removal pipe 42 . The dust removal cover 41 is connected to the auxiliary beam 10 ; the dust removal pipe 42 is connected to the dust removal cover 41 , and the interior of the dust removal pipe 42 is connected to the interior of the dust removal cover 41 .

[0090] It should be noted that the dust cover 41 here is a cylindrical structure with openings on both sides, such as a rectangular cylindrical structure or a circular cylindrical structure, wherein the end on one side is connected to the auxiliary beam 10, and the opening on the other side can be opened so that the laser can pass through the two openings, the first through hole 111, the second through hole 21 and the third through hole 33 and then be emitted to the battery cell.

[0091] The dust removal pipe 42 here can be connected to the side wall of the dust removal cover 41, so that the gas and dust generated during the laser welding process are discharged to the outside through the dust removal pipe 42.

[0092] In the embodiment of the present application, a dust removal pipe 42 is provided and a dust removal hood 41 is connected to the auxiliary beam 10, wherein the dust removal pipe 42 is connected to the dust removal hood 41, and the interior of the dust removal pipe 42 is connected to the interior of the dust removal hood 41, so that the connection with the auxiliary beam 10 can be achieved through the dust removal hood 41, and the discharge of gas and dust can be achieved through the dust removal pipe 42.

[0093] Alternatively, if Figure 5 As shown, the dust removal pipe 42 includes a connecting section 421 and a flow section 422 , wherein the flow section 422 is a tubular structure, such as a circular tubular structure, and the connecting section 421 is a rectangular cylindrical structure to facilitate connection with the dust removal cover 41 .

[0094] It is understandable that the dust removal component 40 here also includes a power component (not shown), such as a fan, which can provide negative pressure for the dust removal pipe 42 so that the gas and dust are discharged to the outside or other closed spaces through the dust removal pipe 42.

[0095] It should be noted that the position where the connecting section 421 is connected to the auxiliary beam 10 is opposite to the baffle 20, that is, the connecting section 421 and the baffle 20 are respectively arranged on both sides of the auxiliary beam 10 and are arranged opposite to each other, so that the baffle 20 can be used to partially close the dust cover 41, thereby increasing the wind speed of dust removal during welding and optimizing the welding effect.

[0096] Alternatively, if Figure 5 As shown, the laser welding auxiliary component 100 also includes a mounting plate 70, wherein the mounting plate 70 is intersected with the auxiliary beam 10, such as the mounting plate 70 is vertically arranged with the auxiliary beam 10, and a plurality of mounting holes are arranged on the mounting plate 70, so as to facilitate the connection of the laser welding auxiliary component 100 with other components of the laser welding equipment 1000, thereby fixing the laser welding auxiliary component 100.

[0097] Alternatively, if Figure 1 and Figure 3 As shown, the laser welding auxiliary assembly 100 also includes an air duct 50 for gas protection during welding. The air duct 50 is fixed to the auxiliary beam 10 or the baffle 20 using a fixing member 60, and the air duct 50 is in communication with the interior of the welding head 31.

[0098] It is understandable that an air guide tube 50 is provided at the position of each welding head 31 to protect the welding process.

[0099] The second aspect of the present application provides a laser welding device 1000, such as Figure 6 As shown, it includes a laser emitter 200 for generating laser and the laser welding auxiliary component 100 as mentioned in the above embodiment; the laser passes through the second through hole 21 and the first through hole 111 of the laser welding auxiliary component 100 in sequence.

[0100] Among them, the laser emitter 200 is used to generate laser. The number of laser emitters 200 here is one or more. The number of laser emitters 200 is consistent with the number of baffles 20, and the number of baffles 20 is also consistent with the number of welding heads 31. If the number of laser emitters 200 is four or six, four or six laser emitters 200 can work simultaneously.

[0101] When the laser welding device 1000 in the embodiment of the present application is working, a suitable baffle 20 is selected according to the specifications of the battery cell, and the suitable baffle 20 is connected to the auxiliary beam 10, and then the welding part 30 is installed.

[0102] The laser emitter 200 generates laser light, which passes through the openings on both sides of the dust cover 41, the first through hole 111, the second through hole 21 and the third through hole 33 in sequence and then is emitted to the battery cell to achieve welding of the battery cell. During the welding process, the dust removal component 40 is in a working state, and the protective gas enters the vicinity of the welding position through the air guide pipe 50, so as to achieve the effect of dust removal while welding.

[0103] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0104] The first aspect of the present application provides a laser welding auxiliary component 100, and the laser welding auxiliary component 100 includes:

[0105] The auxiliary beam 10 is provided with a first through hole 111, and the first through hole 111 is an elongated hole along a first direction;

[0106] The baffle 20 connected to the auxiliary beam 10 is arranged on one side of the auxiliary beam 10 along the second direction, and a second through hole 21 is provided on the baffle 20, at least part of the second through hole 21 and the first through hole 111 are arranged opposite to each other, so that the laser passes through the second through hole 21 and the first through hole 111 in sequence along the second direction; wherein the first direction is the length direction of the auxiliary beam 10, and the second direction intersects with the first direction.

[0107] Furthermore, a groove 11 is provided on the auxiliary beam 10 , and the first through hole 111 is provided in the groove 11 ; and the baffle 20 is provided in the groove 11 .

[0108] Furthermore, the number of the grooves 11 is at least two, and at least two grooves 11 are arranged at intervals along the first direction; each groove 11 can accommodate the baffle 20 .

[0109] Further, two ends of the first through hole 111 along the first direction are arc-shaped; and the second through hole 21 is a circular hole.

[0110] Furthermore, the laser welding auxiliary component 100 also includes a welding part 30 connected to the baffle 20, the welding part 30 is arranged on the side of the baffle 20 away from the auxiliary beam 10, and at least one third through hole 33 is provided on the welding part 30, and each third through hole 33 is arranged opposite to a corresponding second through hole 21.

[0111] Furthermore, the welding member 30 includes a connecting plate 32 and at least two welding heads 31, and two adjacent welding heads 31 are connected by the connecting plate 32.

[0112] Furthermore, the laser welding auxiliary assembly 100 also includes a dust removal piece 40 , which is connected to the auxiliary beam 10 , and is disposed on a side of the auxiliary beam 10 away from the baffle 20 .

[0113] Furthermore, the dust removal component 40 includes a dust removal cover 41 and a dust removal pipe 42 . The dust removal cover 41 is connected to the auxiliary beam 10 ; the dust removal pipe 42 is connected to the dust removal cover 41 , and the interior of the dust removal pipe 42 is connected to the interior of the dust removal cover 41 .

[0114] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A laser welding auxiliary component, characterized in that: The laser welding auxiliary component includes: An auxiliary beam, wherein a first through hole is provided on the auxiliary beam, and the first through hole is an elongated hole along a first direction; a baffle connected to the auxiliary beam, the baffle being disposed on one side of the auxiliary beam along the second direction, and having second through holes formed on the baffle, at least a portion of the second through holes being disposed opposite to the first through holes, such that laser light passes through the second through holes and the first through holes in sequence along the second direction; The first direction is the length direction of the auxiliary beam, and the second direction intersects with the first direction.

2. The laser welding auxiliary assembly according to claim 1, characterized in that: The auxiliary beam is provided with a groove, and the first through hole is provided in the groove; The baffle is arranged in the groove.

3. The laser welding auxiliary assembly according to claim 2, characterized in that: The number of the grooves is at least two, and at least two of the grooves are spaced apart along the first direction; Each of the grooves can accommodate the baffle.

4. The laser welding auxiliary assembly according to claim 1, wherein: Both ends of the first through hole along the first direction are arc-shaped; The second through hole is a circular hole.

5. The laser welding auxiliary assembly according to claim 1, wherein: The laser welding auxiliary component also includes: A welding piece connected to the baffle is arranged on a side of the baffle away from the auxiliary beam, and at least one third through hole is provided on the welding piece, and each of the third through holes is arranged opposite to a corresponding one of the second through holes.

6. The laser welding auxiliary assembly according to claim 5, characterized in that: The welding piece includes a connecting plate and at least two welding heads, and two adjacent welding heads are connected by the connecting plate.

7. The laser welding auxiliary assembly according to claim 1, wherein: The laser welding auxiliary component also includes: A dust removal component is connected to the auxiliary beam and is arranged on a side of the auxiliary beam away from the baffle.

8. The laser welding auxiliary assembly according to claim 7, characterized in that: The dust removal element includes: a dust removal cover connected to the auxiliary beam; and A dust removal pipe is connected to the dust removal cover, and the interior of the dust removal pipe is communicated with the interior of the dust removal cover.

9. A laser welding device, characterized in that: include: The laser welding auxiliary component according to any one of claims 1 to 8; A laser emitter is used to generate laser light, and the laser light passes through the second through hole and the first through hole of the laser welding auxiliary component in sequence.

10. A battery production device, characterized in that: Comprising the laser welding equipment as claimed in claim 9.

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