Sealed wire harness

Abstract

The invention relates to an arrangement (1) comprising a housing having an opening (5) and a sheathed conductor (6) which is inserted through the opening (5) in the direction of the interior of the housing, characterized in that a soft part (8) is injection-molded on an end region of the sheathed conductor (6) and at least a part of the soft part (8) is inserted and pressed into the opening (5).

Description

Technical Field

[0001] The invention relates to an arrangement, in particular a bottom part, comprising a wiring harness, preferably a wiring harness for an electric drive of a vehicle door for various purposes, according to the features of the preamble of claim 1 . Background Art

[0002] In the proposed harness design, the assembly (arrangement system and harness) is to be assembled from a number of individual components and subsequently sealed against external moisture by potting material. In order to assemble the assembly in accordance with the assembly regulations, a number of process steps are required, which are labor-intensive and complex. In addition, the potting process in this design was assessed as not being process-reliable to manufacture, since, due to the design of the individual components, potting material could flow into the sleeve along the individual strands if the sleeve was not clamped sufficiently, thus resulting in a failure of the sealing function. Summary of the invention

[0003] The object is to optimize the design of this arrangement, wherein assembly during production is simplified by this optimization and the tightness is also increased.

[0004] This object is achieved by the features of claim 1 .

[0005] According to the present invention, a soft component is injection molded on the end area of ​​the sheathed conductor and at least a part of the soft component is inserted and pressed into the opening. The advantage of the injection molded soft component is that the sheathed conductor can be prepared in this way so that it can be simply inserted into the opening of the housing. In addition, it is advantageous to use a material that is softer than the housing because the soft component can be closely attached to the inner contour of the opening to achieve the desired sealing effect. This seal between the soft component and the housing is improved by the soft component being pressed into the opening. The advantage of injection molding the soft component onto the outer sheath of the sheathed conductor (i.e., any cable) is that the sealing effect between the outer sheath and the area of ​​the soft component inserted and pressed into the opening in the housing is improved. The material of the soft component is softer than the material of the housing. Therefore, when the soft component is inserted and pressed into the opening of the housing, the soft component can be at least slightly elastically deformed.

[0006] In a further development of the invention, it is provided that the soft component has a circumferential projection on the end side, which bears against the inner contour of the housing. The sealing effect is additionally improved by means of the projection, since the side surfaces of the circumferential projection can bear against the inner contour of the housing surrounding the opening. Furthermore, the position of the soft component in the housing is defined by the projection after insertion into the opening.

[0007] In a further development of the invention, it is provided that the soft component (preferably in the middle) has a circumferential projection that bears against the outer contour of the housing. The sealing effect is additionally improved by means of this projection, since the sides of the circumferential projection can bear against the outer contour of the housing surrounding the opening. Furthermore, a defined position of the soft component after insertion into the opening of the housing is defined by this projection.

[0008] In an extended solution of the present invention, the soft component has an anti-kink portion surrounding a section of the sheath wire. Thus, the sheath wire area entering and exiting the housing can be supported to prevent bending, kinking, etc., especially when the housing is fixedly mounted and the sheath wire is movable (or vice versa).

[0009] In an extension of the present invention, it is provided that the soft component has at least one circumferential groove in the area in which it is inserted and pressed into the opening in the housing. The at least one groove, preferably exactly two or exactly three grooves (which are arranged in sequence along the axial direction of the soft component), has the advantage that, on the one hand, when the soft component is pressed into the opening of the housing, the soft component can expand into the free space of the groove. This simplifies the assembly process while maintaining the same sealing effect. On the other hand, the advantage provided is that the at least one groove can be filled with a material, the material has sliding properties, so that the soft component is inserted and pressed into the opening, and / or the material has sealing properties, so that the sealing effect of the soft component in the housing opening is also improved by means of the material.

[0010] In a further development of the invention, it is provided that the soft component has at least one circumferential flange in the region where it is inserted and pressed into the opening 5 in the housing. By means of this flange, preferably exactly two or exactly three flanges, the sealing effect can be improved when the soft component is inserted and pressed into the opening of the housing. By means of the deformation of the at least one flange, which is elastically deformable due to the material properties of the soft component, an additional pressure or spring effect is generated, which contributes to achieving a permanent sealing effect.

[0011] In a further development of the invention, it is provided that the material of the soft component and the material of the outer sheath of the sheathed conductor form a material-locked connection after the injection molding. Material-locked connections are all connections that hold the connection partners together by atomic or molecular forces. This results in a particularly good seal between the inner contour of the soft component and the outer sheath of the sheathed conductor, which has a favorable effect on the longitudinal waterproofness.

[0012] As a technically feasible solution, an optimized design is proposed according to the invention, which should not only simplify assembly during production but also meet the technical requirements regarding moisture-tightness.

[0013] For this purpose, a concept has been developed in which the used sheathed conductors are injection molded with a soft component, which is then to be installed in the base part. The soft component creates a sealed connection between the sheathed conductor and the base part, which prevents the penetration of external moisture. In addition, the soft component is also intended to better meet the mechanical requirements of the application with regard to tensile and compressive loads.

[0014] Due to the injection molding of the soft component on the end of the sheath conductor insulation layer, the longitudinal waterproofness of the single stranded wire is also achieved.

[0015] Overall, the new design simplifies the assembly of the components and increases the robustness of the sealing with respect to ambient moisture. This is achieved specifically and in particular by the arrangement system (especially the bottom part) according to the invention, which includes a wiring harness, preferably a wiring harness for an electric drive of a vehicle door for various purposes, wherein the used sheathed wires are injection-molded with a soft component, which sheathed wires are then to be installed (passed through) in the housing of the arrangement system, especially the bottom part, and a sealed connection with the sheathed wires and the housing is established in the opening region (of the bottom part) by pressing the soft component into the opening in the housing (bottom part), which prevents the penetration of external moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] An exemplary embodiment of the invention is shown in the single drawing and described below. DETAILED DESCRIPTION

[0017] The arrangement 1 comprises a housing. In this case, the housing comprises a lower part 2 (also referred to as a base part), a middle part 3 and an upper part 4. There can also be more or fewer parts than the three parts shown. The housing can be used, for example, for an electric drive of a vehicle door, so that, for example, an electric motor or the like, a control device arranged on a circuit board and optionally further sensors and / or actuators are arranged in the housing.

[0018] It is important for the present invention that the housing (the lower part 2 in this embodiment) has an opening 5, through which a sheathed conductor 6 (i.e. a cable usually used for power supply, signal transmission, etc.) is to be inserted and passed. The sheathed conductor 6 has at least one single twisted wire 7 (usually an electrical conductor with a sheath), and two single twisted wires 7 are shown in this embodiment. The sheathed conductor 6 can also have more than two single twisted wires 7. The ends of the single twisted wires 7 are in contact with corresponding contact points on the circuit board arranged in the middle part 3.

[0019] A soft component 8 / soft component is injection molded on the sheathed conductor 6, especially on its end. In the present embodiment, an anti-kink portion 9 is injection molded integrally from one end of the soft component 8. The anti-kink portion 9 may, but does not necessarily, exist.

[0020] In the present embodiment, the soft component 8 has a circumferential protrusion 11 on the end side, which is close to the inner contour of the housing, and preferably has a circumferential protrusion 10 in the middle, which is close to the outer contour of the housing. When the sheathed conductor 6 is inserted and pressed into the opening 5 of the housing with its injection-molded soft component 8, the sealing effect is improved by these two protrusions (which have a diameter larger than the inner diameter of the opening 5) and a defined position of the soft component 8 in the housing opening 5 is achieved. For assembly, it is provided that the free end of the sheathed conductor 6 is guided through the opening 5 from the inner area of ​​the lower part 2, more precisely, until the soft component 8 reaches the area of ​​the opening 5 and is inserted and pressed in. Alternatively, the end end of the sheathed conductor 6 can also be passed through the opening 5 before the at least one single stranded wire 7 is electrically contacted with the circuit board in the middle part 3, for example, so as to be inserted and pressed in there. Afterwards, the single stranded wire 7 is contacted with the circuit board, sensor, actuator, etc.

[0021] In the figure, the end of the sheathed conductor 6 extending into the housing ends with a surrounding projection 11 and only the single strand 7 extends further into the housing. Alternatively, depending on the geometric structure of the housing, the end of the sheathed conductor 6 can also extend further into the housing beyond the projection 11.

[0022] Furthermore, in the present embodiment, the soft component 8 has at least one circumferential groove 12 in the region where it is inserted and pressed into the opening 5 in the housing, here exactly three grooves 12 extending in succession and parallel to each other in the axial direction. Alternatively or additionally, the soft component 8 can have at least one circumferential flange in the region where it is inserted and pressed into the opening 5 in the housing. For example, it is conceivable to provide a plurality of grooves and flanges that alternate when viewed in the axial direction.

[0023] Reference numerals list

[0024] 1. Layout system

[0025] 2 lower part

[0026] 3 Middle

[0027] 4 upper part

[0028] 5 Opening

[0029] 6 Sheathed wire

[0030] 7 single twisted wire

[0031] 8Software

[0032] 9 Anti-kink part

[0033] 10 Surrounding protrusion

[0034] 11 Surrounding protrusion

[0035] 12 Surrounding grooves

Claims

1. An arrangement system (1) comprising a housing having an opening (5) and a sheathed conductor (6), wherein the sheathed conductor is inserted through the opening (5) toward the interior of the housing, characterized in that: A soft component (8) is injection-molded onto the end region of the sheathed conductor (6), and at least a portion of the soft component (8) is inserted and pressed into the opening (5).

2. Arrangement system (1) according to claim 1, characterized in that The soft part (8) has a circumferential projection (11) on the end face, which lies against the inner contour of the housing.

3. Arrangement system (1) according to claim 1 or 2, characterized in that The soft part (8) has, preferably in the center, a circumferential projection (10) which bears against the outer contour of the housing.

4. Arrangement system (1) according to claim 1, 2 or 3, characterized in that The soft component (8) has an anti-kink portion (9) surrounding a section of the sheathed wire (6).

5. Arrangement system (1) according to any one of claims 1 to 4, characterized in that The soft component (8) has at least one circumferential groove (12) in the region in which it is inserted and pressed into the opening (5) in the housing.

6. Arrangement system (1) according to any one of claims 1 to 5, characterized in that The soft part (8) has at least one circumferential collar in the region in which it is inserted and pressed into the opening (5) in the housing.

7. Arrangement system (1) according to any one of the preceding claims, characterized in that The material of the soft component (8) and the material of the outer sheath of the sheathed conductor (6) form a cohesive connection after the injection molding.

Images