Component arrangement and process

Abstract

The invention relates to a component arrangement (1) comprising: - at least one first component (3.1) having at least one joint (19); and - a second component (3.2) having a base body (5) and at least one joining insert (21), wherein - a first component (3.1) of the at least one first component (3.1) and a joining insert (21) of the at least one joining insert (21) are associated with each other, wherein - the first component (3.1) and the second component (3.2) are arranged relative to one another in such a way that a joining region (23) is formed between the joining point (19) of the first component (3.1) and the joining insert (21) assigned to the first component (3.1), wherein - the joining insert (21) and the joint (19) associated with the joining insert (21) are / are connected to each other in a materially bonded manner, whereby - the base body (5) has a plurality of hold-down receiving structures (7) with hold-down positioning recesses (9), wherein - the hold-down positioning recesses (9) are designed and arranged such that positioning elements (11) of a hold-down device (13) can be inserted therein, wherein - the base body (5) has through-openings (25) which are each assigned to a joining insert (21) of the at least one joining insert (21), wherein - the passage opening (25) associated with a joining insert (21) is arranged on a side (27) of the joining insert (21) facing away from the joint (19). The invention also relates to a method for producing such a component arrangement (1).

Description

The invention relates to a component arrangement and a method for producing such a component arrangement.Such a component arrangement comprises at least one, in particular a plurality of first components, which each have at least one joint, and a second component, which has a plurality of joining inserts. The first components can be, for example, energy storage cells of an electrical energy storage device. The second component can be, for example, a cell connector of the energy storage cells. The joining inserts are each connected to at least one joint. In the production of such an energy storage device for a motor vehicle, a multiplicity of energy storage cells must be connected, in particular welded, by means of a material bond to electrically conductive cell connectors. Usually, an energy beam, in particular a laser beam, is used for this purpose. The cell connectors used in this case are often not adapted to the hold-downs used during the joining method. The hold-downs used in this case usually have a complex structure in order to be able to uniformly distribute a hold-down force. DE 10 2007 042 739 A1 shows, for example, a holding-down device for an energy beam method. In the case of a large number of joints, it cannot be avoided that some of the joints are covered by the hold-down device itself, so that the covered joints are not easily accessible with the energy beam and can be joined. This has the result that the used hold-downs must be tightened several times in order to connect the joints to be joined, so that cycle time extension and thus higher process costs can result therefrom.The object of the invention is therefore to create a component arrangement which has at least a first component and a second component, and a method for producing such a component arrangement, wherein the disadvantages mentioned are reduced, preferably do not occur.The object is achieved by providing the present technical teaching, in particular the teaching of the independent claims and of the preferred embodiments disclosed in the dependent claims and the description.The object is achieved in particular by providing a component arrangement which has at least a first component and a second component. The at least one first component has at least one joint. The second component has a base body and at least one joining insert, in particular pressed-in, in particular cast-in, in particular inserted into the base body in regions. A first component of the at least one first component and a joining insert of the at least one joining insert are assigned to one another. The first component and the second component are arranged relative to each other in such a way that a joining region is formed between the joint of the first component and the joining insert assigned to the first component. In particular, the joint bears against the associated joining insert. The joining insert and the joint assigned to the joining insert are / are connected to one another in a materially bonded manner, in particular electrically conductively connected, in particular welded. The base body has a plurality of, in particular protruding, hold-down holder receiving structures with hold-down holder positioning recesses which are associated with one another in particular in pairs. The hold-down positioning recesses are formed and arranged in such a way that positioning elements of a hold-down can be inserted therein, in particular that exactly one positioning element can be inserted into each hold-down positioning recess. The base body has passage openings which are each assigned to a joining insert of the at least one joining insert. The passage opening assigned to a joining insert is arranged on a side of the joining insert facing away from the joining point and is designed such that an energy beam, in particular a laser beam, can radiate through the assigned passage opening and can connect, in particular weld, the joining point to the assigned joining insert in a materially bonded manner.Advantageously, due to the design of the base body with the hold-down holder receiving structures, a hold-down holder with a complex structure, which disadvantageously covers some of the joints to be joined, can be dispensed with. A uniform distribution of the hold-down force is no longer achieved by means of the hold-down device itself, but by means of the base body and the hold-down device receiving structures. The holding-down device can thus be constructed in a relatively delicate manner, in particular in the form of a grid. By means of the grid shape, it is possible in particular to connect all joints to the energy beam, in particular laser beam, without the holding-down device having to be re-tensioned. This can lead to a shortening of the cycle time and thus to lower process costs.In particular, the joining region is a region in which the joint and a joining insert associated with the joint overlap, in particular form an overlap joint.In particular, the joining insert and the joint assigned to the joining insert is / are connected, in particular welded, to one another by means of at least one I-weld seam.In particular, the second component is designed as a plate from which the hold-down holder receiving structures project.In particular, the base body has a plurality of joining inserts as the at least one joining insert. In particular, these are arranged at regular, in particular equal, distances on the base body, in particular are embedded in the latter in some regions, in particular pressed in, in particular cast in.In particular, the hold-down holder receiving structures are arranged at regular, in particular equal, distances on the base body. In particular, the hold-down holder receiving structures are formed by the base body. In particular, the base body is produced by means of a deep-drawing process and / or a die casting process.In particular, the hold-down device receiving structures are designed as hollow structures which have in particular a central axis. In particular, the hollow structures have a profile which is symmetrical with respect to the central axis, in particular with a varying diameter, in particular an inner and / or outer diameter. In particular, the hold-down holder receiving structures taper from a reference plane from which the hold-down holder receiving structures project toward the hold-down holder positioning recesses. In particular, the hollow structures have a concave surface.The fact that the hold-down device receiving structures taper means in particular that the diameter of a hollow structure decreases in particular continuously, starting from the reference plane towards the hold-down device positioning recesses, in particular in such a way that a concave surface is formed on an outer lateral surface of the hollow structure.In particular, the hold-down positioning recesses have an elliptical, in particular circular, profile.According to a further development of the invention, it is provided that the base body comprises a plastic or is formed from a plastic. Alternatively or additionally, it is provided that the joining insert has an electrically conductive material, in particular copper or aluminum, or is formed from an electrically conductive material, in particular copper or aluminum. Advantageously, this leads to a lower mass of the second component.According to a further development of the invention, it is provided that at least two joining inserts of the at least one joining insert are electrically conductively connected to one another. In particular, a conductor connecting the at least two joining inserts is likewise embedded in regions in the base body, in particular pressed in, in particular cast in.In particular, the at least two joining inserts are formed from one part, in particular from a single part.According to a further development of the invention, it is provided that a first component of the at least one first component is designed as a battery cell or has a battery cell. The at least one joint of the first component is designed as an electrical pole of the battery cell or has an electrical pole of the battery cell. The second component is formed as a battery cell connector or has a battery cell connector, wherein the battery cell connector electrically connects the battery cell.In an embodiment, the battery cell connector electrically connects a plurality of battery cells to one another.In one embodiment, the component assembly includes a plurality of battery cell connectors that electrically connect one or more battery cells, respectively.According to a further development of the invention, it is provided that the hold-down holder receiving structures are configured to increase a mechanical stability, in particular a mechanical strength, of the base body, in particular of the entire component arrangement. An increased mechanical strength is achieved in particular by means of the protruding hold-down holder receiving structures.The object is also achieved by providing a method for producing a component arrangement according to the invention or a component arrangement according to one or more embodiments described above. In the method, at least one first component, which has at least one joint, is provided. A second component is provided, which has a base body and at least one, in particular pressed-in, in particular cast-in, joining insert, which is in particular locally let into the base body. The base body has a plurality of, in particular protruding, hold-down holder receiving structures with hold-down holder positioning recesses which are associated with one another in particular in pairs. The base body has passage openings which are each assigned to a joining insert of the at least one joining insert. A first component of the at least one first component and a joining insert of the at least one joining insert are assigned to one another. The first component and the second component are arranged with respect to one another in such a way that a joining region is formed between the joint of the first component and the joining insert assigned to the first component, wherein the passage opening assigned to the joining insert is arranged on a side of the joining insert facing away from the joint. A holding-down device, which has positioning elements, is arranged relative to the base body in such a way that the positioning elements engage in the holding-down device positioning recesses of the base body and urge the second component against the first component, in particular tighten it relative to one another. An energy beam, in particular a laser beam, beams through the associated passage opening and connects, in particular welded, the joint to the associated joining insert in a materially bonded manner. In the context of the method, the advantages are obtained in particular, which have already been explained in connection with the component arrangement.In one embodiment, a grid-shaped hold-down device is used as the hold-down device. Advantageously, due to the grid openings, it is possible to connect all joints without having to re-clamp the hold-down device during the joining process. In particular, the grid-shaped hold-down device has longitudinal struts and transverse struts which form the grid shape. In particular, the cross braces are arranged transversely, in particular normally, to the longitudinal braces.According to a further development of the invention, it is provided that a plastic is used as the material for the base body. Alternatively or additionally, it is provided that an electrically conductive material, in particular copper or aluminum, is used as material for the joining insert.According to a further development of the invention, it is provided that a battery cell is used as a first component of the at least one first component, wherein the at least one joint of the first component is formed as an electrical pole of the battery cell. As the second member, a battery cell connector is used, the battery cell connector electrically connecting the battery cell.The invention is explained in more detail below with reference to the drawings. The following are shown: FIG. 1 shows a schematic illustration of an exemplary embodiment of a component arrangement, FIG. 2 shows an enlarged sectional illustration of the component arrangement according to FIG. 1, and FIG. 3 shows a process flow diagram of a method for producing the component arrangement according to FIG. 1.FIG. 1 shows a schematic illustration of an exemplary embodiment of a component arrangement 1, which has at least one first component 3.1-here a plurality of first components 3.1-and one second component 3.2.The first components 3.1 are designed as battery cells. The second component 3.2 is designed as a battery cell connector, wherein the battery cell connector electrically connects the battery cells.The second component 3.2 has a base body 5. The base body 5 has a plurality of, in particular protruding, hold-down holder receiving structures 7 with hold-down holder positioning recesses 9 (cf. FIG. 2 ), which are assigned to one another in particular in pairs. The hold-down positioning recesses 9 are formed and arranged in such a way that positioning elements 11 (cf. FIG. 2 ) of a hold-down 13 can be inserted therein, in particular that exactly one positioning element 11 can be inserted into each hold-down positioning recess 9.The grid-shaped hold-down device 13 can likewise be seen. In the method according to FIG. 3, the hold-down device 13 is arranged relative to the main body 5 in such a way that the positioning elements 11 engage in hold-down device positioning recesses 9 of the main body 5 (cf. FIG. 2 ) and urge the second component 3.2 against the first components 3.1--illustrated by the arrows F--in particular braced with respect to one another.In particular, the lattice-shaped hold-down device 13 has longitudinal struts 15 and transverse struts 17, which form the lattice shape. In particular, the cross struts 17 are arranged transversely, in particular normally, to the longitudinal struts 15.FIG. 2 shows an enlarged sectional illustration of the component arrangement 1 according to FIG. 1Identical and functionally identical elements are provided with identical reference symbols in all figures, so that reference is made to the preceding description in each case in this respect.The at least one first component 3.1 has at least one joint 19. The second component 3.2 has the base body 5 and at least one joining insert 21, which is in particular inserted, in particular cast-in, in particular inserted, in particular inserted, in regions into the base body 5. A first component 3.1 of the at least one first component 3.1 and a joining insert 21 of the at least one joining insert 21 are assigned to one another. The first component 3.1 and the second component 3.2 are arranged relative to one another in such a way that a joining region 23 is formed between the joint 19 of the first component 3.1 and the joining insert 21 assigned to the first component 3.1. In particular, the joint 19 abuts the associated joining insert 21. The joining insert 21 and the joint 19 assigned to the joining insert 21 are connected to one another in a materially bonded manner, in particular electrically conductively connected, in particular welded. The base body 5 has through-openings 25 which are each assigned to a joining insert 21 of the at least one joining insert 21. The passage opening 25 assigned to a joining insert 21 is arranged on a side 27 of the joining insert 21 facing away from the joint 19 and is designed such that an energy beam 29, in particular a laser beam, can radiate through the assigned passage opening 25 and can connect, in particular weld, the joint 19 to the assigned joining insert 21 in a materially bonded manner.In the joining region 23, the joint 19 and a joining insert 21 assigned to the joint 19 overlap and form an overlap joint. The joining insert 21 and the joint 19 assigned to the joining insert 21 are connected to one another by means of a weld seam 31.In particular, the base body 5 has a plurality of joining inserts 21 as the at least one joining insert 21. In particular, these are arranged at regular, in particular equal, distances on the base body 5, in particular are let into it in some areas, in particular pressed in, in particular cast in (cf. FIG. 1 ).In particular, the hold-down device receiving structures 7 are designed as hollow structures which have in particular a central axis 33. In particular, the hollow structures have a profile which is symmetrical with respect to the central axis 33, in particular with a varying diameter, in particular an inner and / or outer diameter. In particular, the hold-down holder receiving structures 7 taper from a reference plane 35 from which the hold-down holder receiving structures 7 project toward the hold-down holder positioning recesses 9.In this exemplary embodiment, it is provided that the base body 5 comprises a plastic or is formed from a plastic. Alternatively or additionally, it is provided that the joining insert 21 comprises an electrically conductive material, in particular copper or aluminum, or is formed from an electrically conductive material, in particular copper or aluminum.In an exemplary embodiment not shown here, it is provided that at least two joining inserts 21 of the at least one joining insert 21 are electrically conductively connected to one another. In particular, a conductor connecting the at least two joining inserts 21 is likewise embedded in regions in the base body 5, in particular pressed in, in particular cast in.The joint 19 of the first component 3.1 is designed as an electrical pole 39 of the battery cell or has an electrical pole 39 of the battery cell.The hold-down holder receiving structures 7 are configured to increase a mechanical stability, in particular a mechanical strength, of the base body 5, in particular of the entire component arrangement 1.FIG. 3 shows a process flow diagram of a method for producing the component arrangement 1 according to FIG.. 1In the method, in a first step S 1, the at least one first component 3.1 and the second component 3.2 are provided. In a second step S 2, the first component 3.1 of the at least one first component 3.1 and the joining insert 21 of the at least one joining insert 21 are assigned to one another and are arranged with respect to one another in such a way that the joining region 23 is formed between the joining point 19 of the first component 3.1 and the joining insert 21 assigned to the first component 3.1, wherein the passage opening 25 assigned to the joining insert 21 is arranged on the side 27 of the joining insert 21 facing away from the joining point 19.In a third step S 3, the hold-down 13 which has the positioning elements 11 is arranged relative to the main body 5 in such a way that the positioning elements 11 engage in the hold-down positioning recesses 9 of the main body 5 and urge the second component 3.2 against the first component 3.1, in particular tighten them with respect to one another.In a fourth step S 4, the energy beam 29, in particular laser beam, radiates through the associated passage opening 25 and connects, in particular welded, the joint 19 to the associated joining insert 21 in a materially integral manner.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2007 042 739 A1

[0002]

Claims

Component arrangement (1) comprising: - at least one first component (3.1) which has at least one joint (19); and - a second component (3.2) which has a base body (5) and at least one joint insert (21), wherein - a first component (3.1) of the at least one first component (3.1) and a joint insert (21) of the at least one joint insert (21) are associated with one another, wherein - the first component (3.1) and the second component (3.2) are arranged with respect to one another in such a way that a joint region (23) is formed between the joint (19) of the first component (3.1) and the joint insert (21) associated with the first component (3.1), wherein - the joint insert (21) and the joint (19) associated with the joint insert (21) are / are bonded to one another, wherein - the base body (5) has a plurality of hold-down holder receiving structures (7) with hold-down holder positioning recesses (9), wherein - the hold-down holder positioning recesses (9) are designed and arranged in such a way that positioning elements (11) of a hold-down holder (13) can be introduced therein, wherein - the base body (5) has passage openings (25) which are each assigned to a joining insert (21) of the at least one joining insert (21), wherein - the passage opening (25) assigned to a joining insert (21) is arranged on a side (27) of the joining insert (21) facing away from the joining point (19).Component arrangement (1) according to Claim 1, wherein - the base body (5) comprises a plastic or is formed from a plastic, and / or wherein - the joining insert (21) comprises an electrically conductive material or is formed from an electrically conductive material.Component arrangement (1) according to one of the preceding claims, wherein - at least two joining inserts (21) of the at least one joining insert (21) are / are electrically conductively connected to one another.Component arrangement (1) according to one of the preceding claims, wherein - a first component (3.1) of the at least one first component (3.1) is formed as a battery cell or has a battery cell, wherein the at least one joint (19) of the first component (3.1) is formed as an electrical pole (39) of the battery cell or has an electrical pole (39) of the battery cell, wherein - the second component (3.2) is formed as a battery cell connector or has a battery cell connector, wherein the battery cell connector electrically connects the battery cell.Component arrangement (1) according to one of the preceding claims, wherein - the hold-down holder receiving structures (7) are configured to increase a mechanical stability of the base body (5).Method for producing a component arrangement (1) according to one of the preceding claims, wherein - at least one first component (3.1) which has at least one joint (19) is provided, wherein - a second component (3.2) which has a base body (5) and at least one joining insert (21) is provided, wherein the base body (5) has a plurality of hold-down holder receiving structures (7) with hold-down holder positioning recesses (9), wherein the base body (5) has passage openings (25) which are each assigned to a joining insert (21) of the at least one joining insert (21), wherein - a first component (3.1) of the at least one first component (3.1) and a joining insert (21) of the at least one joining insert (21) are assigned to one another, wherein - the first component (3.1) and the second component (3.2) are arranged with respect to one another in such a way, that a joining region (23) is formed between the joint (19) of the first component (3.1) and the joining insert (21) assigned to the first component (3.1), wherein the passage opening (25) assigned to the joining insert (21) is arranged on a side (27) of the joining insert (21) facing away from the joint (19), wherein - a hold-down device (13), which has positioning elements (11), is arranged relative to the base body (5) in such a way that the positioning elements (11) engage in the hold-down positioning recesses (9) of the base body (5) and urge the second component (3.2) against the first component (3.1), wherein - an energy beam (29) radiates through the assigned passage opening (25) and connects the joint (19) to the assigned joining insert (21) in a materially integral manner.Method according to Claim 6, wherein - a plastic is used as the material for the base body (5), and / or - an electrically conductive material is used as the material for the joining insert (21).Method according to Claim 6 or 7, wherein - a battery cell is used as a first component (3.1) of the at least one first component (3.1), wherein the at least one joint (19) of the first component (3.1) is formed as an electrical pole (39) of the battery cell, wherein - a battery cell connector is used as the second component (3.2), wherein the battery cell connector electrically connects the battery cell.

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