Door assembly and door module of a motor vehicle

Abstract

Door assembly (1) of a motor vehicle door, comprising a frame-like inner door part (3) with a lateral frame section (3a) and a door module (4) mounted or mountable on the inner door part (3) and a wiring harness (11) pre-mounted thereon, wherein a recess (13) is provided on the lateral frame part (3a) of the inner door part (3) between adjacent hinge bands (14), into which the wiring harness (11) is inserted or can be inserted.

Description

[0001] The invention relates to a door assembly of a motor vehicle, comprising a frame-like inner door part and a door module mounted or mountable on the inner door part. The invention further relates to a door module for such a door assembly and to a vehicle door with such a door assembly.

[0002] A vehicle door (motor vehicle door) typically consists of an inner door section, also known as the door frame, which is usually frame-like, and an outer door section (outer door panel, outer sheet metal) that forms the outer door skin, as well as, optionally, an inner door panel or inner door trim. The inner door section, or door frame, connected to the outer sheet metal, typically has two opposing, spaced-apart side frame sections and a connecting sill section, as well as a lower sill section (door bottom). A cavity is formed between the inner door section and the outer sheet metal as an assembly space, in which functional elements of the vehicle door, such as components of a window regulator, a door lock, an airbag sensor, or the like, are arranged.

[0003] Moisture can penetrate the cavity between the outer and inner door panels, also referred to below as the door cavity, for example, through a door sill slot over which a window pane, covering the vehicle door's window opening, is guided. Therefore, the cavity is divided by a wet / dry compartment partition into a wet compartment (wet compartment side) facing the vehicle's surroundings or the outer door panel, and a dry compartment (dry compartment side) facing the vehicle's interior or the interior trim.

[0004] The following information regarding spatial directions, particularly in a vehicle coordinate system, is given for an example installation situation of a door module in a side door. The abscissa (X-axis, X-direction) is oriented along the vehicle's longitudinal direction (direction of travel), the ordinate (Y-axis, Y-direction) along the vehicle's transverse direction, and the application axis (Z-axis, Z-direction) along the vehicle's height.

[0005] The sill section of the door assembly or vehicle door, oriented in the longitudinal direction of the vehicle (X-direction in the vehicle coordinate system), together with the side frame sections oriented in the direction of the vehicle's height (Z-direction in the vehicle coordinate system) and the sill section connecting them at the bottom of the door and running in the X-direction, defines a frame opening (door opening) of the inner door part (door shell). One of the side frame sections, which faces the vehicle's A-pillar, typically has door hinges or hinge components with which the vehicle door is articulated to the vehicle or the vehicle body. A door lock is accessible via an opening in the opposite side frame section, which faces the vehicle's B-pillar.

[0006] The frame or module cutout of the door assembly or vehicle door is, in the assembled state of the vehicle door, at least partially, preferably completely, covered by a plate-like or plate-shaped component carrier (door module carrier, functional carrier, base carrier). Various functional components of the vehicle door, such as components of the window regulator, a drive unit, a side airbag module, a loudspeaker, a control unit, or the like, can be pre-mounted on the component carrier. The pre-assembled component carrier, hereinafter referred to as the door module, also serves, in particular, to separate the wet space formed between the outer door panel and the door module from the dry space formed between the door module (door module carrier) and the inner door trim of the vehicle door, especially for moisture-sensitive functional components of the door module or the vehicle door.

[0007] To connect and supply the functional components, the vehicle door or door module can be connected to the vehicle's electrical system via a door disconnect plug, a wiring harness, or a connection cable (cable set). The door disconnect plug is a connection component located near the door hinges and is designed to establish and disconnect the electrical connection between the vehicle door and the vehicle's electrical system. Such a door disconnect plug allows for the quick and safe disconnection of electrical lines, for example, for maintenance, repairs, or door replacement, without affecting the vehicle's overall electrical system.The door disconnect plug, which is designed to ensure reliable transmission of signals and energy between the vehicle door and the vehicle body, typically includes several connections for different electrical functional components of the door, such as the window regulator, the exterior mirror adjustment, the door locking mechanisms and security systems.

[0008] During installation, for example, when the door disconnect plug needs to be connected to the door module via a main wiring harness or similar cable set, a sleeve- or tube-like grommet of the main wiring set typically has to be manually and laboriously guided through a hole in the frame-like door structure or inner door panel at the door disconnect point. Furthermore, due to the installation position or final assembly position of individual components, manual access behind the inner door panel is often required during the installation process, resulting in an undesirably complex assembly procedure.

[0009] The invention is based on the objective of providing a door assembly for a motor vehicle that is suitable for door installation that can be automated as much as possible, in particular by robots. Furthermore, a door module particularly suitable for this purpose is to be specified.

[0010] The door assembly comprises a frame-like inner door part or inner door panel with a side frame section, hereinafter also referred to as the A-pillar-side frame section, and a door module mounted or mountable on the inner door part. The door assembly includes a wiring harness or cable set pre-mounted on the door module, with a recess provided in the side frame section of the inner door part in which the wiring harness is inserted or can be inserted. The recess is formed in the (A-pillar-side) frame section between adjacent hinges, preferably as an embossing. The door module has a wet-room side and a dry-room side, on which a wiring harness is mounted to a cover element.

[0011] The invention is based on the idea of ​​routing the main wiring harness or cable set directly in the dry area, using a surface-mounted installation concept in the area of ​​the door separation point, thus avoiding any passage into the wet area. The cable set should be mounted entirely in the transverse direction of the vehicle (Y-direction in the vehicle coordinate system) and be able to be routed behind a main door seal. Furthermore, the cable set or cable guide should be mountable together with the door module on the inner door panel (door frame).

[0012] According to a practical embodiment, the recess is designed as a corrugated cable channel. In other words, the inner door panel or sheet, particularly in the area of ​​a main door seal, is embossed to accommodate the wiring or cable set, at least in sections. Advantageously, the recess is guided over a frame rebate of the lateral frame section of the inner door panel, which is approximately Z-shaped in cross-section.

[0013] The recess is suitably positioned close to the door module. It may be spaced apart from the door module. Preferably, the recess is directly adjacent to the door module. Preferably, the recess should be concealed by an inner door panel mounted on the door assembly.

[0014] In a particularly advantageous embodiment, the wiring harness is arranged on or integrated into a cover element, wherein the cover element covers the recess or the corrugated cable duct at least partially or section by section, preferably completely.

[0015] The cover element is suitably attached to or on a dry-room side of the door module. It is particularly advantageous if the cover element is a single, integral part of the door module. The shape of the cover element is especially appropriately adapted to the outer contour of the side frame section or its frame rebate.

[0016] In its installed state, the recess or cover element is preferably positioned beneath a main door seal, particularly running transversely to it. In other words, the main door seal spans the recess—advantageously covered by the cover element—with the wiring or cable set embedded therein, in a transverse direction to the main extension of the cover element or recess, on the side frame section.

[0017] An embodiment of the invention is explained in more detail below with reference to a drawing. The drawing shows: Fig. 1 in a perspective view a door assembly with a frame-like inner door part with a door module mounted on it with pre-assembled components and with a cover element guided over an A-pillar-side frame section, Fig. 2. Partially shown in a perspective view of the door assembly according to Fig. 1 looking into a groove-like recess for a cable set guided in the cover element, Fig. 3. Partially shown in an exploded view of the door assembly according to Fig. 1 in an assembly state with a cover element arranged on the door module for the groove-like recess in the inner part of the door, Fig. 4 in a representation according to the Fig. 2 and Fig. 3 the assembly status of the door module on the inner part of the door without the main door seal in the frame section, Fig. 5 a top view of a wet room side of the door module with mounted cover element and cable set attached to it, and Fig. 6 in a sectional view along line VI-VI in Fig. 1 the mounted cover element with the cable set guided on it and in the groove-like recess of the inner part of the door.

[0018] Corresponding parts are marked with the same reference symbols in all figures.

[0019] Information regarding spatial directions is given in the vehicle coordinate system with respect to the orientation of a side door of a motor vehicle, where the X-direction is oriented along the longitudinal direction of the vehicle (driving direction), the Y-direction along the transverse direction of the vehicle, and the Z-direction along the vehicle height.

[0020] The Fig. Figure 1 shows a door assembly 1 as part of a vehicle door designed as a frame door in the exemplary embodiment with a frame (door, window frame) 2. The door assembly 1 has a frame-like inner door part 3, also referred to as the door shell, with side frame sections 3a, 3b oriented in the Z direction and a sill section 3c connecting them in the X direction, as well as a lower sill section (door bottom) 3d extending in the X direction. Frame section 3a faces the A-pillar, and frame section 3b faces the B-pillar of the vehicle 3b. The door assembly 1 also has a door module 4 with a plate-like component carrier 5, which is attached to or can be mounted on the inner door part 2. In the installed state, the door module 4 or the component carrier 5 creates a wet / dry compartment separation within the vehicle door.

[0021] With regard to the Fig. 3 A door interior or assembly space 6, forming the wet room, is formed between the inner door part 3 and an outer door panel (not shown or not visible). Fig. 1, Fig. 2, Fig. 3 to Fig. Figures 4 show door module 4 looking towards the drying room side, and Fig. Figure 5 shows the door module 4 with a view to the side of the panel facing the wet room or the interior or assembly space 6 of the door assembly 1 or the vehicle door.

[0022] In the inner door or assembly space 6 of the door assembly 1, there are also partially Fig. 5 recognizable functional elements of the vehicle door, such as two parallel guide rails 7 with sliding guide rails 8 with drive function for a window pane (not shown) that can be inserted into the (door) frame 2, as well as an electromechanical actuator 9 of a (cable) window lifter for adjusting the window pane between an open position and a closed position, and a loudspeaker 10.

[0023] With a view also to the Fig. 6. The door module 4 has a pre-assembled wiring or cable set 11 and a cap-like cover element 12, on which the wiring set 11 is guided and held in sections. A groove-like recess 13 is provided on the A-pillar-side frame section 3a of the inner door part 3, into which the cable-like wiring set 11 lies or can be inserted. The channel-like recess 13, hereinafter also referred to as a cable channel, is formed as an embossing in the frame section 3a between the A-pillar-side adjacent hinge bands 14 of the door assembly 1 and is provided in a frame rebate 15 that is approximately Z-shaped in cross-section.

[0024] The recess 13, which acts as a cable duct and receives the cable set 11 section by section, is brought towards the door module 4 and preferably extends to the door module 4. The cover element 12 with the cable set 11 lying in the cable duct or in the recess 13 and with a disconnect plug 16 provided at its end, is arranged exclusively on the dry room side of the door assembly 1 and the door module 4.

[0025] Advantageously, the cover element 12 is formed integrally (in one piece) with the door module 4. In other words, the cover element 12 is preferably integrally formed with the door module 4 or the assembly carrier 5. The shape of the cover element 12 is adapted to the outer contour of the lateral frame section 3a or its frame rebate 15, and is therefore approximately Z-shaped in cross-section. In particular, the recess 13 or the cover element 12 should be concealed by an inner door panel (not shown here) mounted on the dry-room side of the door assembly 1.

[0026] In the Fig.In the assembly state shown in Figure 1, the recess 13 and the cover element 12 with integrated cable set 11 are located under a main door seal 17, running in the X direction and perpendicular to the Z-direction of the main door seal 17. In the assembly state, the main door seal 17 spans the cover element 12 and the recess 13 covered by it, with the cable set 11 embedded therein, on the side frame section 3a.

[0027] In summary, the invention relates to a door assembly 1 of a motor vehicle door, comprising an inner door part 3 with a side frame section 3a and a door module 4 as well as a wiring harness 11 pre-mounted thereon, wherein a recess 13 is provided on the side frame part 3a of the inner door part 3, into which the wiring harness 11 is inserted or can be inserted.

[0028] The concept according to the invention is based on the routing of the main cable or wiring harness 11 in the area of ​​a door separation point, directly in the dry area, avoiding any passage into the wet area. The wiring harness 11 is mounted entirely in the Y-direction (transverse direction of the vehicle) and routed behind or under the main door seal 17. Furthermore, the wiring harness 11, guided on the cover element 12, can be automatically mounted on the inner door part (door shell) 3 together with the door module 4 without the need for a cable gland or grommet for the wiring harness 11.

[0029] The claimed invention is not limited to the embodiments described above. Rather, other variants of the invention can also be derived by a person skilled in the art within the scope of the disclosed claims without departing from the subject matter of the claimed invention. In particular, all individual features described in connection with the various embodiments can also be combined in other ways within the scope of the disclosed claims without departing from the subject matter of the claimed invention. Reference symbol list 1 door assembly 2 door / window frames 3 Door inner part 3a (A-pillar side) frame section 3b (A-pillar side) frame section 3c parapet section 3D sill section 4 door module 5 aggregate carriers 6 Door interior / assembly room 7 Guide rail 8 rail gliders 9 actuator 10 speakers 11 Wiring / cable set 12 Cover element 13 Recess / Cable duct 14 hinge 15 frame rebate 16 disconnect plugs 17 Door main seal

Claims

[1] Door assembly (1) of a motor vehicle door, comprising a frame-like inner door part (3) with a side frame section (3a) and a door module (4) mounted or mountable on the inner door part (3) and a wiring harness (11) pre-mounted thereon, wherein a recess (13) is provided on the side frame part (3a) of the inner door part (3) between adjacent hinge bands (14) into which the wiring harness (11) is inserted or can be inserted. [2] Door assembly (1) according to claim 1, characterized by , that the recess (13) is designed as a corrugated cable channel or is incorporated as an embossing into the frame section (3a) of the inner part of the door (3). [3] Door assembly (1) according to claim 1 or 2, characterized by , - that the recess (13) is brought close to the door module (4), and / or - that the recess (13) is adjacent to the door module (4), in particular directly. [4] Door assembly (1) according to one of claims 1 to 3, characterized by , that the recess (13) is guided over a frame rebate (15) of the lateral frame section (3a) of the inner door part (3). [5] Door assembly (1) according to any one of claims 1 to 4, characterized by that the wiring harness (11) is arranged on or integrated into a cover element (12). [6] Door assembly (1) according to claim 5, characterized by , that the cover element (13) is attached to or on a dry room side of the door module (4) or is formed integrally with the door module (4). [7] Door assembly (1) according to any one of claims 1 to 6, characterized by , that the recess (13) or the cover element (12) is guided under a main door seal (17), in particular perpendicular to it. [8] Door assembly (1) according to any one of the preceding claims, characterized by, that the shape of the cover element (12) is adapted to the outer contour of the side frame section (3a) or its frame rebate (15). [9] Door module (4) for a door assembly (1) according to one of claims 1 to 8, comprising a wet room side and a dry room side on which a cable set (11) is mounted on a cover element (12). [10] Vehicle door of a motor vehicle, comprising a door assembly (1) according to any one of claims 1 to 8.

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