Laser welding

Abstract

In a sanitary installation assembly (1) which comprises a connection part (2) and a fluid connector (3), it is proposed that the connection part (2) has a fluid connector receptacle (4) which overlaps with the fluid connector (3) in a connecting direction, and that there is an integrally bonded connection (5) between the connection part (2) and the fluid connector (3).

Description

[0001] PC 25 1292 C 5 . August 2025

[0002] Laser welding

[0003] The invention relates to a sanitary installation arrangement comprising at least one first connection part and a fluid connector, wherein the first connection part has a fluid connector receptacle which overlaps with the fluid connector in a connection direction. Such a sanitary installation arrangement is used in practice.

[0004] The invention further relates to the use of a sanitary installation arrangement. Such a use is known.

[0005] The invention further relates to a sanitary fitting. Sanitary fittings are known in the prior art.

[0006] The invention further relates to a method for a fluidic connection of a sanitary functional component with a fluid connector. Such a method is known in the prior art.

[0007] The state of the art for connecting hoses and fittings, especially fittings, is crimping or molding. However, crimping results in a disadvantageous mechanical stress on the fitting. Molding, in which the fitting is injection molded, is disadvantageously complex. The connection of rigid components, such as the fitting or the fitting itself, and flexible components, such as hoses, is particularly relevant in the sanitary sector. Here, a sufficiently high mechanical strength, fluidic tightness, and compatibility with drinking water are preferably combined. (PC 25 1292 C 2 / 31 5. August 2025)

[0008] The invention is based on the objective of improving the connection properties and operational characteristics of a sanitary installation arrangement. This objective is achieved by the features of the independent claims.

[0009] Advantageous embodiments are described in the dependent claims. It should be noted that the features listed individually in the dependent claims can be combined in any technologically meaningful way and define further embodiments of the invention. Furthermore, the features specified in the claims are further specified and explained in the description, which also presents further preferred embodiments of the invention.

[0010] To solve the stated problem, the invention proposes the features of claim 1. In particular, according to the invention, in a sanitary installation arrangement of the type described above, it is proposed to solve the stated problem by providing a material-fit connection between the first connection part and the fluid connector. Thus, a reliable and permanent connection between the fluid connector and the connection part can be provided.

[0011] Advantageous embodiments of the invention are described below, which can be combined alone or in combination with the features of other embodiments, optionally together with the features according to claim 1.

[0012] In an advantageous design, the fluid connector may be configured as a hose and / or the fluid connector receptacle may be configured as a hose receptacle. A hose can be a technically simple and, due to its flexibility, versatile configuration of the fluid connector (PC 25 1292 C 3 / 31 5. August 2025). The fluid connector receptacle may be configured as a hose receptacle, in particular. Alternatively, the fluid connector may also be configured as a pipe or other rigid connecting piece.

[0013] In an advantageous embodiment, it may be provided that a second connection part is formed, wherein the second connection part has a fluid connector receptacle which overlaps with the fluid connector in a connection direction, wherein a materially tight connection exists between the second connection and the fluid connector.

[0014] Due to the described design of the sanitary installation arrangement with the second connection part, the advantages described in connection with the first connection part can be applied to a second connection part connected to the fluid connector. In particular, a water-bearing arrangement can be designed in this way that exhibits sufficiently high mechanical strength, fluidic tightness, and compatibility with drinking water.

[0015] The first and second connection parts can be designed as components of the same or different types. Additionally or alternatively, the first and second connection parts can have the same geometry and / or be made of the same material. Furthermore, the material-fit connection between the first connection part and the fluid connector, as well as the material-fit connection between the second connection part and the fluid connector, can be designed in the same way and, in particular, identically. Alternatively, the material-fit connection between the first connection part and the fluid connector, as well as the material-fit connection PC 25 1292 C 4 / 31 5 August 2025 between the second connection part and the fluid connector, can be designed in different ways and, in particular, differently.

[0016] The connection direction in which the fluid connector receptacle of the second connection part overlaps with the fluid connector can be identical or different from the connection direction in which the fluid connector receptacle of the first connection part overlaps with the fluid connector. In particular, the respective connection direction can be determined by the orientation of a section of the fluid connector overlapping with the respective fluid connector receptacle, especially an end of the fluid connector overlapping with the respective fluid connector receptacle, and / or by the orientation of the fluid connector receptacle.

[0017] In an advantageous design, the fluid connector can be inserted into the fluid connector receptacle of the first connection part and / or into the fluid connector receptacle of the second connection part. This results in a mechanically stable arrangement.

[0018] Alternatively, the first and / or second connection part may be inserted into the fluid connector. Whether the connection part(s) is / are inserted into the fluid connector, or vice versa, depends on the operating conditions, in particular operating pressure, temperature, and flow rate.

[0019] In an advantageous embodiment, the first connection part and / or the second connection part may be configured to receive a sanitary functional element. Preferably, the sanitary functional element is an aerator. Alternatively, the sanitary functional element may also be a flow regulator. Thus, PC 25 1292 C 5 / 31 5. August 2025

[0020] The functionality of the sanitary installation arrangement will be further improved.

[0021] In an advantageous design, the first connection part and / or the second connection part may be designed as a fitting. Preferably, the fitting is designed as a push-fit and / or screw fitting. This improves the connection quality.

[0022] Here, fittings are connecting pieces for pipelines in supply and assembly technology, which are mainly used to create pipeline connections.

[0023] In an advantageous embodiment, the material-fit connection between the fluid connector and the first connection part and / or the material-fit connection between the fluid connector and the second connection can be created by welding. In other words, the material-fit connection can be a welded joint. Preferably, the material-fit connection is created by laser welding, ultrasonic welding, or thermal welding. This allows for a permanently strong and inseparable connection. This is particularly advantageous at high flow rates.

[0024] In an advantageous design, the fluid connector can be configured to create a direct or indirect connection between a valve cartridge and the first connection part and / or the second connection part. This improves the functionality of the fluid connector. "Direct" here refers to a situation in which no other sanitary elements besides the PC 25 1292 C 6 / 31 5. August 2025 are present between the respective connection part and the valve cartridge.

[0025] Fluid connectors are formed. An indirect connection is described here as a situation in which further sanitary elements, such as aerators or flow regulators, are formed between the respective connection part and the valve cartridge, in addition to the fluid connector.

[0026] In an advantageous embodiment, the fluid connector and the first connecting part and / or the fluid connector and the second connecting part can be made from a base material of the same type of plastic. Preferably, the fluid connector and the first connecting part and / or the fluid connector and the second connecting part are made from the same base material. This improves the connection between these respective connected parts. Examples of the same type of plastic are polyolefins or polyketones. Using the same type of plastic has a beneficial effect on the formation of a material-fit connection by welding, especially laser welding. The material-fit connection can thus be of higher quality.

[0027] In an advantageous embodiment, the base material of the fluid connector and the first connection part and / or the second connection part may be polyethylene, polypropylene, polyamide, and additionally or alternatively polyketone or a mixture thereof. The mixture of the fluid connector and the mixture of the first connection part and / or the second connection part may be identical or different. Experiments with the aforementioned materials have proven particularly advantageous, especially with regard to weldability. The plastics to be welded are preferably thermoplastic plastics. PC 25 1292 C 7 / 31 5. August 2025

[0028] In an advantageous design, the first and / or second connection part may be provided with an additive. This can improve the material quality of the first and / or second connection part. If the first and / or second connection part has a base material, the additive may, for example, be mixed into the base material. In particular, the base material may be a matrix, and the additive may be dispersed within the matrix. The additive may, for example, be carbon black or a flame retardant.

[0029] In an advantageous embodiment, the admixture may contain at least a partial reinforcing additive. Preferably, the reinforcing additive is a fibrous material, for example, glass fiber or aramid fiber. Additives typically used in plastics are plasticizers (e.g., diethylhexyl phthalate), stabilizers, colorants, or fillers.

[0030] In an advantageous design, the amplifying additive can be optically transparent. This prevents it from being attacked by a laser beam, allowing the laser beam to pass through and be absorbed at the fluid connector.

[0031] In an advantageous design, the base material can be optically transparent. This allows the laser beam to pass through and be focused precisely on a point between the first connection part and the fluid connector and / or between the second connection part and the fluid connector.

[0032] In an advantageous embodiment, a preferably circumferential and additionally or alternatively circumferentially oriented welded joint, in particular a weld seam, furthermore in particular a laser weld seam, can be formed between the fluid connector and the first connection part PC 25 1292 C 8 / 31 5 August 2025 and / or between the fluid connector and the second connection part. This allows a material-fit connection between the fluid connector and the first connection part and / or between the fluid connector and the second connection part. The welded joint, in particular a weld seam, furthermore in particular a laser weld seam, can be formed circumferentially or only partially circumferentially, in particular at specific points. Alternatively, the welded joint, in particular a weld seam, furthermore in particular a laser weld seam, can be intermittent.

[0033] In an advantageous design, the first connection part and / or the second connection part can be transparent in a spectral range in which the fluid connector is absorbent. This ensures that a laser beam can penetrate the first connection part and / or the second connection part without causing heating or melting the material.

[0034] Melting of the material only occurs at the fluid connector or at the interface between the fluid connector and the first connection part and / or at the interface between the fluid connector and the second connection part. Therefore, laser welding from the outside through the respective connection part is possible.

[0035] In an advantageous design, the fluid connector can be arranged in an interference fit in the first connection part and / or in an interference fit in the second connection part. This allows for a good weld joint, particularly a laser weld seam (PC 25 1292 C 9 / 31, August 5, 2025), and even a certain degree of sealing without a weld, for example, without a laser weld seam. An interference fit is also referred to as an interference fit in mechanical engineering. In an interference fit, the maximum dimension of a bore is always smaller than the minimum dimension of the shaft. Therefore, energy must be expended to clamp and move the shaft into the bore.

[0036] An interference fit is a type of fit where the parts to be joined have an interference fit. This means that the outer diameter of one part (usually a shaft) is slightly larger than the inner diameter of the other part (usually a bore). This interference fit creates a tight, backlash-free connection, achieved by pressing the larger part into the smaller one.

[0037] In an advantageous embodiment, the weld, particularly the laser weld, can extend over an axial area larger than the line width of a single weld, especially the laser weld itself. This allows for a high-quality connection. For example, the weld, particularly the laser weld, can be designed as a zigzag weld and / or several parallel welds, particularly laser welds, can be formed. Several parallel welds, particularly laser welds, are advantageous when a higher quality connection is required or in cases where the base materials of the connecting part and the fluid connector are different and a single weld, particularly a laser weld, is insufficient for the connection.

[0038] In an advantageous design, it may be provided, PC 25 1292 C 10 / 31 5. August 2025, that the first connection part and / or the second connection part has / have greater stiffness and additionally or alternatively greater hardness than the fluid connector. Thus, the respective connection part can perform a fastening function on a fitting or frame.

[0039] Stiffness, in this context, refers to the resistance of a body to elastic deformation caused by an external load (a force or torque) and to the resulting deformation itself. Stiffness is a broader term encompassing tensile stiffness, shear stiffness, bending stiffness, and torsional stiffness. Hardness, on the other hand, refers to the mechanical resistance a material offers to the mechanical penetration of another body.

[0040] In an advantageous design, the first connection part and / or the second connection part may be transparent or translucent in a visible spectral range. This allows for visual inspection of the material-fit connection between the first connection part and the fluid connector, and / or the material-fit connection between the second connection part and the fluid connector, from the outside and through the respective connection part. Translucency refers to the partial transmission of light through a body. Transparency refers to the complete transmission of light through a body. The visible spectral range is defined as the range of light with wavelengths between 380 nanometers and 780 nanometers.

[0041] In an advantageous embodiment, the sanitary installation arrangement can be designed for installation in a sanitary fitting. Preferably, the sanitary installation arrangement is designed for installation in a spout pipe. This allows for improved functionality of the sanitary installation arrangement PC 25 1292 C 11 / 31 5. August 2025.

[0042] To solve the aforementioned problem, the invention provides the features of the dependent claim, which relates to the use of a sanitary installation arrangement. In particular, to solve the aforementioned problem, it is proposed according to the invention, when used in the manner described above, that the sanitary installation arrangement be designed with one of the features mentioned above, especially as described, and that the sanitary installation arrangement be used in a sanitary fitting. Preferably, the fluid connector is arranged in an outlet pipe of the sanitary fitting. Thus, the full functionality of the sanitary installation arrangement can be achieved.

[0043] To solve the aforementioned problem, the invention provides the features of the dependent claim relating to a sanitary fitting. In particular, to solve the aforementioned problem, the invention proposes that a sanitary fitting of the type described above has a sanitary installation arrangement according to one of the features mentioned above, in particular a sanitary installation arrangement of the type described. This allows the functionality and operating characteristics of a sanitary fitting to be improved.

[0044] To solve the aforementioned problem, the invention provides the features of the dependent claim, which relates to a method for a fluidic connection of a sanitary functional component, in particular an aerator, to a fluid connector. In particular, to solve the aforementioned problem, the invention proposes, in a method of the type described above, that the sanitary functional component is fluidically connected to a first connection part PC 25 1292 C 12 / 31 5 August 2025 and that the fluid connector is plug-connected to the first connection part, wherein the fluid connector and the first connection part are configured according to a sanitary installation arrangement according to one of the features mentioned above, and wherein the fluid connector and the first connection part are butt-fitted. Thus, a sanitary functional component can be connected and the functionality of the device can be further improved.

[0045] In an advantageous embodiment, the fluid connector can be plugged into a second connection part, the second connection part being designed according to a sanitary installation arrangement based on one of the features mentioned above, and the fluid connector and the second connection part being butt-fitted. This can further improve the functionality of the device.

[0046] In an advantageous embodiment, the fluid connector and the first connection part and / or the fluid connector and the second connection part can be joined by welding. Preferably, the welding is laser welding, ultrasonic welding, or thermal welding. This allows a permanently stable and secure connection to be created between the fluid connector and the respective connection part.

[0047] In an advantageous embodiment, the first connection part and / or the second connection part may be designed to be at least partially transparent to laser light, for example, from the aforementioned laser welding process. In particular, the laser light can be guided through the at least partially transparent first connection part and / or the at least partially transparent second connection part to introduce energy into the fluid connector plugged into the first connection part and / or the second connection part (PC 25 1292 C 13 / 31 5 August 2025). Thus, the laser light can penetrate the first connection part and / or the second connection part and create a weld, in particular a laser weld seam, at a precisely desired location.

[0048] In an advantageous embodiment, a reinforcing additive can be added to the first and / or second connection part. Preferably, the reinforcing additive is a fiber material, for example, glass fiber or aramid fiber. This allows the hardness and strength of each connection part to be precisely adjusted. Aramid fibers consist of polyamides in which the amide groups are bonded to aromatic groups.

[0049] In an advantageous embodiment, the cross-sectional area of ​​a laser beam, such as the one already mentioned, can be selected to be larger than the dimensions of a particle of the reinforcing additive. This prevents the laser light from interacting with the reinforcing additive, and in particular from melting it. This would be detrimental to the hardness and strength of the first and / or second connection part and would also lead to lower weld quality. Therefore, it is advantageous if the dimensions of the reinforcing additive particle are smaller than the cross-sectional area of ​​the laser beam.

[0050] In an advantageous embodiment, it can be provided that the fluid connector is rotated with the first connection part and / or with the second connection part during laser welding. Preferably, the fluid connector is rotated with the first connection part and / or with the second connection part around a PC 25 1292 C 14 / 31 5 . August 2025

[0051] The longitudinal axis of the fluid connector rotates. Thus, a

[0052] Laser welds of good quality can be produced.

[0053] In an advantageous design, a laser head can be rotated around the fluid connector with the first connection part and / or the second connection part. The laser head is the part of the laser from which the laser beam exits. This allows for the use of an alternative manufacturing technique.

[0054] However, the fluid connector is preferred, and at least the connecting part to be joined with it is rotated, while the laser position remains fixed. This ensures the best (laser) welding quality.

[0055] In an advantageous embodiment, the fluid connector can be press-fitted to the first and / or second connection parts before the material-fit connection is established. This ensures a good and reliable seal. Preferably, the material-fit connection is made by laser welding. Other welding techniques that can be used include ultrasonic welding and / or thermal welding.

[0056] The invention will now be described in more detail with reference to a few exemplary embodiments, but is not limited to these few embodiments. Further variants and exemplary embodiments result from combining the features of one or more claims with each other and / or with one or more features of the exemplary embodiments and / or the previously described variants of the devices, uses, and methods according to the invention. PC 25 1292 C 15 / 31 5 August 2025

[0057] It shows:

[0058] Fig. 1 shows a sanitary installation arrangement according to the invention with two welds in a perspective view and

[0059] Fig. 2 shows the sanitary installation arrangement from Fig. 1 in a further perspective view and

[0060] Fig. 3 shows the sanitary installation arrangement from Fig. 1 in a further perspective view and

[0061] Fig. 4 shows a sanitary installation arrangement according to the invention with a weld seam in a perspective view and

[0062] Fig. 5 shows the sanitary installation arrangement from Fig. 4 in a further perspective view and

[0063] Fig. 6 shows the sanitary installation arrangement from Fig. 4 in a further perspective view and

[0064] Fig. 7 shows a sanitary installation arrangement according to the invention with a weld seam in a perspective view and

[0065] Fig. 8 shows the sanitary installation arrangement from Fig. 7 in a further perspective view and

[0066] Fig. 9 shows the sanitary installation arrangement from Fig. 7 in a further perspective view and

[0067] Fig. 10 shows a sanitary installation arrangement according to the invention with two weld seams in a perspective view and

[0068] Fig. 11 shows the sanitary installation arrangement from Fig. 10 in a further perspective view and

[0069] Fig. 12 shows the sanitary installation arrangement from Fig. 10 in a further perspective view and

[0070] Fig. 13 shows a sanitary installation arrangement according to the invention with two connection parts in a schematic side view.

[0071] The following description refers to various PC 25 1292 C 16 / 31 5. August 2025

[0072] In exemplary cases of the invention, elements that are functionally identical also receive identical reference numbers even if they differ in design or shape.

[0073] For clarity, not all reference numbers are shown in the figures, even though the elements may well be present in the figures. However, identical reference numbers denote functionally and / or structurally identical components and functional units.

[0074] Figs. 1 to 3 show a sanitary installation arrangement 1 according to the invention with two welds 8 in different perspective views.

[0075] The sanitary installation assembly 1 comprises a connection part 2 and a fluid connector 3 designed as a hose 3. Alternatively, the fluid connector could, for example, also be designed as a pipe or other rigid connecting piece. The connection part 2 has a fluid connector receptacle 4 designed as a hose holder 3, which overlaps with the fluid connector 3 in one connection direction. There is a material-fit connection 5 between the connection part 2 and the fluid connector 3, i.e., between the connection part 2 and the hose.

[0076] It is also possible that the fluid connector 3 is connected to another connection part not shown in Figures 1 to 12. For example, a second end of the fluid connector 3 may be connected to another connection part. If the fluid connector 3 is connected to another connection part, the connection part 2 shown in Figures 1 to 12 may be a first connection part 2. The second connection part may also be configured in the ways shown in Figures 1 to 12 and / or connected to the fluid connector 3 in the same ways. (See PC 25 1292 C 17 / 31, August 5, 2025)

[0077] In other words, the teaching of Figures 1 to 12 and the related description can be applied to the first connection part 2 and the second connection part. The first connection part 2 and the second connection part can, in particular, be designed in the same way and / or connected to the fluid connector 3 in the same way.

[0078] In the exemplary embodiments shown in Figures 1 to 3, the connecting part 2 is inserted into the fluid connector 3. The connecting part 2 is designed to receive a sanitary functional component (not shown here), for example, an aerator.

[0079] The connecting part l 2 in Figures 1 to 3 is designed as a fitting 6. The fitting 6 is designed as a push-fit fitting.

[0080] In the sanitary installation arrangement 1, the material-fit connection is created by welding, specifically by laser welding. Accordingly, the material-fit connection 5 is a welded connection, in particular a laser welded connection. Alternatively, the material-fit connection 5 can be created by ultrasonic welding or thermal welding.

[0081] The sanitary installation arrangement 1 in Figures 1 to 3 has two circumferential welds 8, which in the specific examples are designed as laser welds 7. The welds 8 can be partially circumferential or fully circumferential.

[0082] The fluid connector 3 can create a direct or indirect connection between a valve cartridge (not shown here) and the connection part 2. PC 25 1292 C 18 / 31 5 August 2025

[0083] The fluid connector 3 and the connecting part 2 are made of a base material of the same type of plastic. In a preferred embodiment, the fluid connector 3 and the connecting part 2 are made of the same base material.

[0084] The base material of the fluid connector 3 and the connection part 2 comprises polyethylene, polypropylene, polyamide and additionally or alternatively polyketone or a mixture thereof.

[0085] The connecting part l 2 is provided with an admixture, wherein the admixture at least partially comprises a reinforcing additive. The reinforcing additive is preferably a fiber material, for example glass fiber or aramid fiber.

[0086] The amplifying additive is optically transparent so that it does not interact with a laser beam. The base material is also optically transparent. The fluid connector 3 is transparent in a spectral range in which the connecting part 2 is absorbing.

[0087] The connecting part l 2 has a greater stiffness and, additionally or alternatively, a greater hardness than the fluid connector 3. This is advantageous overall for mechanical stability.

[0088] Fluid connector 3 is transparent in a visible spectral range. Alternatively, fluid connector 3 can be translucent in a visible spectral range.

[0089] The material-bonded connection 5 is preferably produced by laser welding. Preferably, the fluid connector 3 with the connecting part 2 is rotated about a longitudinal axis of the fluid connector 3 PC 25 1292 C 19 / 31 5. August 2025 during laser welding, while the laser itself is static. Alternatively, it is also conceivable that the laser or a laser head is rotated about the fluid connector 3 with the connecting part 2.

[0090] Figures 4 to 6 show a sanitary installation arrangement 1 according to the invention with a weld seam 8 in different perspective views. The sanitary installation arrangement 1 has the same features as the sanitary installation arrangement 1 described in Figures 1 to 3. A repetition of the features is omitted here. The only difference between Figures 1 to 3 and Figures 4 to 6 is that the sanitary installation arrangement 1 has two weld seams 8 and Figure 4 to 6 has one weld seam 8, respectively.

[0091] Figures 7 to 9 show a sanitary installation arrangement 1 according to the invention with a weld seam 8 in different perspective views.

[0092] The sanitary installation assembly 1 comprises a connection part 2 and a fluid connector 3, the connection part 2 having a fluid connector receptacle 4. The fluid connector receptacle 4 overlaps with the fluid connector 3 in one connection direction. There is a material-fit connection 5 between the connection part 2 and the fluid connector 3.

[0093] In the specific examples, the fluid connector 3 is inserted into the fluid connector receptacle 4.

[0094] The connection part l 2 is for the installation of a sanitary

[0095] Functional piece (not shown here) set up.

[0096] Preferably, the sanitary functional piece is an aerator.

[0097] The connection part l 2 is designed as a fitting 6, namely PC 25 1292 C 20 / 31 5 . August 2025 as a push-fit fitting.

[0098] The material-bonded connection 5 is produced by welding, preferably laser welding. Accordingly, the material-bonded connection 5 is a welded joint, in particular a laser welded joint. Alternative welding methods with which the material-bonded connection 5 can be produced are ultrasonic welding or thermal welding.

[0099] The fluid connector 3 can directly or indirectly create a connection between a valve cartridge (not shown here) and the connection part 2.

[0100] The fluid connector 3 and the connecting part 2 are made from a base material of the same type of plastic. Preferably, the fluid connector 3 and the connecting part 2 are made from the same base material.

[0101] The base material of the fluid connector 3 and the connection part 2 comprises polyethylene, polypropylene, polyamide and additionally or alternatively polyketone or a mixture thereof.

[0102] The connecting part l 2 is provided with an additive. The additive includes at least a reinforcing additive, preferably a fiber material. The fiber material included can be, for example, glass fiber or aramid fiber.

[0103] The reinforcing additive is designed to be optically transparent so that it does not interact with a laser beam used for laser welding.

[0104] The base material is optically transparent. PC 25 1292 C 21 / 31 5. August 2025

[0105] A circumferential laser weld 7 is formed between the fluid connector 3 and the connection part 2. Alternatively, the laser weld 7 can be oriented circumferentially and not be circumferential. Alternatively, the laser weld 7 can be intermittent.

[0106] The connecting part 2 is transparent in a spectral range in which the fluid connector 3 is absorbent. These characteristics are important for laser welding, in which the laser beam first penetrates the connecting part 2 and only then the fluid connector 3.

[0107] The fluid connector 3 can be arranged in a press fit in the connection part 2.

[0108] The connecting part l 2 has a greater stiffness and additionally or alternatively a greater hardness than the fluid connector 3 .

[0109] The connection part 2 is transparent in a visible spectral range. Alternatively, the connection part 2 can be translucent in a visible spectral range.

[0110] The sanitary installation arrangement 1 is designed for installation in a sanitary fitting (not shown here), for example a spout pipe.

[0111] The fluid connector 3 and the connecting part 2 are materially connected to each other by welding, preferably laser welding or ultrasonic welding or thermal welding.

[0112] Preferably, the fluid connector 3 with the connecting part 2 is rotated about a longitudinal axis of the fluid connector 3 during laser welding. Alternatively, a laser head of a laser can be rotated about the fluid connector 3 with the connecting part 2. PC 25 1292 C 22 / 31 5. August 2025.

[0113] Figures 10 to 12 show an installation arrangement 1 according to the invention with two welds 8 in different perspective views. The sanitary installation arrangement 1 of Figures 10 to 12 has the same features as the sanitary installation arrangement 1 of Figures 7 to 9; only the number of welds 8 differs. For the sake of brevity, a duplication of the feature description is omitted here.

[0114] Figure 13 shows a sanitary installation arrangement according to the invention with two connection parts in a schematic side view. The installation arrangement comprises a first connection part 2 and a second connection 9. These two connection parts 2, 9 can each be designed according to one of the exemplary embodiments shown in Figures 1 to 12 and described here and connected to the fluid connector 3.

[0115] In particular, the first connection part 2 is connected to a first end of the fluid connector 3 and the second connection part 9 is connected to a second end of the fluid connector 3.

[0116] In this case, the first connection part 2 and the second connection part 9 are designed in the same way and connected to the fluid connector 3. The material-fit connection is created by inserting the fluid connector 3 into the fluid connector receptacle 4 of the first connection part 2 and the second connection part 9 and then laser welding. This design is described, for example, in connection with the embodiments of the sanitary installation shown in Figures 7 to 12. Explicit reference is made to this description here. PC 25 1292 C 23 / 31 5 August 2025

[0117] Due to the fact that the connection parts 2, 9 are transparent in a spectral range in which the fluid connector 3 is designed to absorb light, a laser beam 10, indicated in Fig. 13, can penetrate the first connection part 2 and the second connection part 9 without heating them, and in particular without melting them. However, the energy of the laser beams 10 is converted into heat when the laser beams 10 strike the fluid connector 3. The laser beams 10 thus heat the fluid connector 3 in the area of ​​the incident laser beam 10, as well as the adjacent area of ​​the first connection part 2 and the second connection part 9.As a result, at least the fluid connector 3, and preferably also the first connecting piece 2 and / or the second connecting piece 9 to be joined to it, are melted, whereby the fluid connector 3 and the first connecting piece 2, as well as the fluid connector 3 and the second connecting piece 9, form a material-fit connection 5. The circumferential connection 5 is formed by a relative rotational movement of a laser head emitting the laser beams 10 and the fluid connector 3 with the first connecting piece 2 and with the second connection 9 at a steep angle to each other about a longitudinal axis of the fluid connector 3 during laser welding (3). This connection 5 is a laser weld seam 7.

[0118] A sanitary installation arrangement 1, comprising at least a first connection part 2 and a fluid connector 3, is proposed, wherein the first connection part 2 has a fluid connector receptacle 4 which overlaps with the fluid connector 3 in a connection direction, and wherein a material-fit connection 5 exists between the first connection part 2 and the fluid connector 3. PC 25 1292 C 24 / 31 5 August 2025

[0119] Reference symbol list

[0120] 1 sanitary installation arrangement

[0121] 2 Connection part, first connection part 3 Fluid connector, hose

[0122] 4 fluid connector receptacles, hose receptacles

[0123] 5 material f conclusive connection

[0124] 6 Fitting

[0125] 7 Laser weld 8 Weld , welds

[0126] 9 second connection part

[0127] 10 laser beams

Claims

PC 25 1292 C 25 / 31 August 5, 2025 Claims 1. Sanitary installation arrangement (1) comprising at least a first connection part (2) and a fluid connector (3) wherein the first connection part (2) has a fluid connector receptacle (4) which overlaps with the fluid connector (3) in a connection direction, characterized in that a materially bonded connection (5) exists between the first connection part (2) and the fluid connector (3).

2. Sanitary installation arrangement (1) according to claim 1, characterized in that the fluid connector is designed as a hose and / or that the fluid connector receptacle is designed as a hose receptacle.

3. Sanitary installation arrangement (1) according to one of claims 1 or 2, characterized in that a second connection part (9) is formed, wherein the second connection part (9) has a fluid connector receptacle (4) which overlaps with the fluid connector (3) in a connection direction, wherein a materially bonded connection (5) exists between the second connection part (9) and the fluid connector (3).

4. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the fluid connector (3) into the fluid connector receptacle (4) of the first connection part (2) and / or into the fluid connector receptacle (4) of the second connecting part (9) is introduced.

5. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) is designed to receive a sanitary functional piece, in particular PC 25 1292 C 26 / 31 5 August 2025 a jet regulator, is / are set up.

6. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) is / are designed as a fitting (6), in particular a push-fit and / or screw fitting.

7. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the materially bonded connection (5) between the fluid connector (3) and the first connection part (2) and / or the materially bonded connection (5) between the fluid connector (3) and the second connection part (9) is / are produced by welding, in particular laser welding or ultrasonic welding or thermal welding.

8. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the fluid connector (3) directly or indirectly creates a connection between a valve cartridge and the first connection part (2) and / or the second connection part (9).

9. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the fluid connector (3) and the first connection part (2) and / or the fluid connector (3) and the second connection part (9) are made of a base material of the same type of plastic, in particular the same base material.

10. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the base material of the fluid connector (3) and of the first connection part (2) and / or of the second connection part (9) is polyethylene, polypropylene, polyamide and / or polyketone or a PC 25 1292 C 27 / 31 August 5, 2025 It contains a mixture of these.

11. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) is / are provided with an additive.

12. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the admixture at least partially comprises a reinforcing additive, preferably a fibrous material, in particular glass fiber or aramid fiber.

13. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the reinforcing additive is optically transparent.

14. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the base material is optically transparent.

15. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that a preferably circumferential and / or circumferentially oriented welded connection, in particular a laser weld (7) , is formed between the fluid connector (3) and the first connection part (2) and / or between the fluid connector (3) and the second connection part (9).

16. Sanitary installation arrangement (1) according to one of the preceding Claims characterized in that the first The connecting part (2) and / or the second connecting part (9) is / are transparent in a spectral range in which the fluid connector (3) is designed to be absorbing. PC 25 1292 C 28 / 31 August 5, 2025 17. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the fluid connector (3) is arranged in a press fit in the first connection part (2) and / or in a press fit in the second connection part (9).

18. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) has / have a greater stiffness and / or greater hardness than the fluid connector (3).

19. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) is / are transparent or translucent in a visible spectral range.

20. Sanitary installation arrangement (1) according to one of the preceding claims, characterized in that it is designed for installation in a sanitary fitting, in particular a spout pipe.

21. Use of a sanitary installation arrangement (1) according to one of claims 1 to 20 in a sanitary fitting, in particular wherein the fluid connector (3) is arranged in an outlet pipe of the sanitary fitting.

22. Sanitary fitting with a sanitary installation arrangement (1) according to one of claims 1 to 20.

23. Method for a fluidic connection of a sanitary functional piece, in particular an aerator, with a fluid connector (3) , wherein the sanitary functional piece is fluidically connected to a first connection part (2). PC 25 1292 C 29 / 31 5 August 2025 and the fluid connector (3) is plugged into the first connection part (2), wherein the fluid connector (3) and the first connection part (2) are designed according to a sanitary installation arrangement (1) according to claims 1 to 20, characterized in that the fluid connector (3) and the first connection part (2) are connected in a materially interlocking manner.

24. Method according to claim 23, characterized in that the fluid connector (3) is plugged into a second connection part (9), wherein the second connection part (9) is designed according to a sanitary installation arrangement (1) according to claims 3 to 20, wherein the fluid connector (3) and the second connection part (9) are connected in a materially interlocking manner.

25. Method according to one of claims 23 or 24, characterized in that the fluid connector (3) and the first connection part (2) and / or the fluid connector (3) and the second connection part (3) are joined together by welding, in particular laser welding, ultrasonic welding or thermal welding.

26. Method according to one of the preceding claims, characterized in that the first connection part (2) and / or the second connection part (9) is / are designed to be at least partially transparent to a laser light of or of a laser welding process, in particular wherein the laser light is guided through the at least partially transparent first connection part (3) and / or second connection part (9) in order to introduce energy into the fluid connector (3) pluggably connected to the first connection part (2) and / or second connection part.

27. Method according to any of the preceding claims, wherein PC 25 1292 C 30 / 31 5 August 2025 characterized in that a reinforcing additive, preferably a fibrous material, in particular glass fiber or aramid fiber, is added to the first connection part (2) and / or the second connection part (9).

28. Method according to one of the preceding claims, characterized in that a beam cross-section of one or the laser light is selected which is larger than an extent of a particle of the amplifying additive.

29. Method according to one of the preceding claims, characterized in that the fluid connector (3) is connected to the first connection part (2) and / or to the second connection part (9) is rotated during laser welding, preferably about a longitudinal axis of the fluid connector (3).

30. Method according to one of the preceding claims, characterized in that a laser head is rotated around the fluid connector (3) with the first connection part (2) and / or with the second connection part (9).

31. Method according to one of the preceding claims, characterized in that the fluid connector (3) is press-fitted to the first connection part (2) and / or to the second connection part (9) before the materially bonded connection (5) is produced, in particular by laser welding.

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