Patent Application
20190161032
The invention relates to a wiring harness, to a vehicle component of a motor vehicle, to a mold for manufacturing a wiring harness, to a mold system and to a method for manufacturing the wiring harness.
Wiring harnesses with individual cables for connecting different components in a motor vehicle are known. In this context, the cables are strung on a mounting board and wound in a winding tape. The wiring harness is produced substantially in a manual way, and therefore the production of the wiring harness is particularly expensive.
It is the object of the invention to provide an improved wiring harness, an improved vehicle component, an improved mold, an improved mold system and an improved method for manufacturing a wiring harness of this kind.
This object is achieved by means of a wiring harness for a motor vehicle as described and claimed. Advantageous embodiments are indicated in the dependent claims.
It was recognized that an improved wiring harness for a motor vehicle can be provided if the wiring harness has a cable bundle with at least two cables and an envelope. At least some section or sections of the cable bundle is/are embedded in the envelope. In this way, it is possible to dispense with laborious winding of the cable bundle. Moreover, the envelope ensures that the wiring harness can be bent and guided around tight radii particularly easily. Moreover, the individual cables of the cable bundle are protected by the envelope.
In another embodiment, the envelope has an indicating element on the outside, wherein the indicating element is routed parallel to the cable bundle in order to indicate a position of the cable bundle, wherein the indicating element extends substantially over the entire longitudinal extent of the envelope, wherein at least some section or sections of the indicating element is/are configured to correspond to a geometrical configuration of a holding device of a mold. The first bulge is a simple means of indicating the alignment of the cable bundle in the envelope, thus enabling the wiring harness to be laid particularly quickly in the motor vehicle.
In another embodiment, the indicating element has a first bulge, wherein the first bulge is of bead-type configuration, and/or wherein the indicating element has a notch on the outside of the envelope. This enables the cable bundle to be found particularly quickly in the envelope when repairing the wiring harness.
In another embodiment, the first bulge extends substantially over an entire longitudinal extent of the envelope.
In another embodiment, the wiring harness has a first fastening element. At least some section or sections of the first fastening element is/are embedded in the envelope. The first fastening element is configured to hold at least one of the cables of the cable bundle in a predefined position. In this way, heating of the wiring harness can be fixed in a defined way, thus reliably avoiding even local overheating of the wiring harness. It is thereby possible to avoid irreversible damage to the wiring harness in a simple way.
In another embodiment, the wiring harness has a second fastening element. The second fastening element has a first section, which is embedded in the envelope. The second fastening element furthermore has a second section, which is configured to engage in a vehicle component of the motor vehicle in order to fasten the wiring harness on the vehicle component.
In another embodiment, the envelope has a first layer, a second layer and preferably a third layer, wherein the cable bundle is embedded in the first layer, wherein the first layer comprises a first material, and the second layer comprises a second material, wherein the second material preferably has a different elasticity from, preferably a higher elasticity than, the first material, wherein the second layer is preferably of rectangular configuration or has a rib structure, wherein, on a side facing the first layer, the second layer preferably has a surface provided with a predefined surface structure, wherein, on a side facing away from the first layer, the second layer is preferably of flat configuration, wherein the third layer is preferably arranged on a side of the second layer which faces away from the first layer, wherein the third layer comprises at least one material, wherein the third material comprises an adhesive and/or has a third elasticity, which is different from, preferably lower than, the first and/or the second elasticity. This enables the second layer to serve as a protection for the cable bundle, thus avoiding possible damage to the cable bundle, e.g. by sharp edges of a body of the vehicle.
In another embodiment, the first layer is of slimmer configuration in a direction transverse to the cable bundle than the second layer, wherein the first layer is configured to engage in a recess in a vehicle component, wherein the first layer preferably has a trapezoidal cross section and the second layer preferably has a substantially rectangular cross section.
In another embodiment, the envelope has a second bulge, wherein the wiring harness can be passed through a feedthrough opening in a vehicle component, wherein the second bulge extends with a slope relative to a longitudinal extent of the cable bundle, wherein the second bulge is configured to form a, preferably fluidtight, separation between two spaces in the vehicle component, at least in some section or sections, wherein the second bulge has a bulge contour, wherein the second bulge is configured to press the bulge contour against a feedthrough opening contour of the feedthrough opening in order to provide substantially fluidtight separation between the spaces.
In another embodiment, the envelope has a second bulge, wherein the second bulge extends with a slope relative to a longitudinal extent of the cable bundle, wherein the second bulge is configured to form a, preferably fluidtight, separation between two spaces in the vehicle component, at least in some section or sections, wherein the second bulge has a bulge contour, wherein the second bulge is configured to press the bulge contour against a recess contour of a recess in a vehicle component in order to provide a frictional connection between the recess and the second bulge and to fasten the wiring harness frictionally in the recess. This enables the wiring harness to the fastened in the motor vehicle in a particularly simple way.
In another embodiment, the envelope has a first envelope section and a second envelope section. The first envelope section has a first transverse extent with respect to a first direction of longitudinal extent of the first envelope section. The second envelope section has a second transverse extent with respect to a second longitudinal extent of the second envelope section. The first transverse extent is greater than the second transverse extent.
The envelope has a transitional section. The transitional section is arranged between the first envelope section and the second envelope section. The first envelope section has a first lateral surface and the second envelope section has a second lateral surface. The transitional section has a transitional surface, which has a slope relative to the first lateral surface and the second lateral surface. The slope has an angle, wherein the angle has a value which is less than 45°, in particular less than 30°, in particular less than 20°, in particular less than 15°, in particular less than 10°.
However, the object is also achieved by a vehicle component of a motor vehicle according to patent claim 8.
It has been recognized that an improved vehicle component for a motor vehicle can be provided if the vehicle component has a structure having at least one recess with a recess contour and has a wiring harness described above, wherein at least the second bulge engages in the recess, wherein the second bulge is arranged at least partially under prestress, preferably under compression, in the recess, and the second bulge presses the bulge contour against the recess contour and provides a frictional connection between the wiring harness and the vehicle component. It is thereby possible to make particularly efficient use of an available installation space within the vehicle component of the motor vehicle. Moreover, rattling of the wiring harness against a structure of the vehicle component is avoided by means of the surface-to-surface contact with the structure.
In another embodiment, the wiring harness is arranged in the recess, wherein the structure has a surface adjoining the recess, wherein the surface and an upper side are of stepless configuration, and the surface and the upper side preferably extend in a common plane. In this way, the wiring harness can be laid in the vehicle with a particularly small installation space requirement and, at the same time, fixing of the wiring harness can be ensured in a simple manner. Furthermore, catching of other components of the motor vehicle on the wiring harness when mounted on the structure is avoided.
However, the object is also achieved by means of a mold for manufacturing the above-described wiring harness. Advantageous embodiments are indicated below.
It has been recognized that an improved mold for manufacturing a wiring harness can be provided if the mold has a wall and an opening. The wall delimits a mold cavity, at least laterally. The mold cavity adjoins the opening at the top.
By virtue of the upwardly open mold, the cables can be laid particularly easily during the manufacture of the wiring harness without having to be pulled around pins. As a result, the wiring harness can be manufactured particularly quickly. Moreover, it is also possible for the cables to be laid automatically by means of a robot, and therefore manufacturing costs are further reduced by automation.
In another embodiment, the mold has a holding device. The holding device is arranged on the wall and covers the opening, at least in some section or sections, wherein the holding device is of plate-type and/or brush-type configuration, wherein the holding device comprises a material which is capable of reversible elastic deformation, and the holding device can be bent reversibly through at least 70°, preferably through 90°, preferably into the mold cavity. This avoids a situation where the cables laid in the mold cavity can accidentally slip out. Floating of the cables in the mold cavity during the foaming of the envelope is also avoided.
It is particularly advantageous here if the wall has a wall base, wherein the holding device is arranged parallel to the wall base, at least in some section or sections.
In another embodiment, the wall has a first wall section and a second wall section. The first wall section is arranged opposite the second wall section, wherein the holding device comprises a first holding element and a second holding element, wherein the first holding element is arranged on the first wall section, and the second holding element is arranged on the second wall section, wherein the first holding element and the second holding element each end with a free end over the opening and close the mold cavity, at least in some section or sections, wherein the first wall section and/or the second wall section are/is preferably provided with an undulating profile, at least in some section or sections.
In another embodiment, the free ends of the holding elements are arranged spaced apart, and/or the holding elements are arranged in an overlapping manner over the opening.
In another embodiment, the first wall section has a first wall region and a second wall region, wherein the first wall region is arranged substantially parallel to the second wall section, wherein the second wall region extends in a manner offset from the first wall region in a direction away from the second wall section, with the result that the mold cavity has a widened portion, wherein the second wall region is configured to correspond to the first bulge contour and/or to the second bulge contour.
In another embodiment, an aperture is provided in the wall, wherein the aperture is configured as a through opening and is arranged in a wall bottom of the mold, wherein the wall bottom delimits the mold cavity at the bottom, wherein the aperture is configured to accommodate at least a section of the first and/or second fastening element of the wiring harness, and/or wherein an ejector for removing the wiring harness from the mold is configured to reach through the aperture, wherein the aperture is preferably configured to correspond to the ejector. As a result, the wiring harness can be removed from the mold particularly easily and by machine.
In another embodiment, an aperture is provided in the wall, wherein the aperture is configured to accommodate at least a section of the first and/or the second fastening element of the wiring harness.
In another embodiment, the wall has a first wall surface section, a second wall surface section and a wall surface transitional section, wherein the first wall surface section is preferably arranged lower than the second wall surface section, wherein the wall surface transitional section is arranged between the first wall surface section and the second wall surface section, wherein the wall surface transitional section is arranged with a slope relative to the first wall surface section and the second wall surface section, wherein the slope preferably has an angle, wherein the angle has a value which is less than 45°, in particular less than 30°, in particular less than 20°, in particular less than 15°, in particular less than 10°. This avoids cracking in the wiring harness at the transition between the first wall envelopeing section and the second wall envelopeing section.
In another embodiment, the first wall surface section and the second wall surface section are arranged in two planes arranged parallel to one another.
In another embodiment, the holding device is configured so as to follow the wall and to be interrupted in some section or sections and/or to be continuous.
In another embodiment, the holding device comprises silicone as the material. In addition or as an alternative, the wall comprises at least one of the following materials: polytetrafluoride, polyoxymethylene.
These materials have a particularly low surface tension as compared with the material of the envelope, thus ensuring reliable demolding of the wiring harness after the curing of the envelope. In particular, it is also ensured, through the use of the materials for the wall, that a large number of wiring harnesses can be manufactured with the mold without further cleaning or reprocessing steps to produce the original mold being required in addition.
In another embodiment, the wall has a wall surface which faces the mold cavity, wherein the wall surface is laser-polished, at least in some section or sections. By means of laser polishing, any scoring that may be present, due, in particular, to the mold cavity being milled into the mold, is mitigated, with the result that the molding and removal of the wiring harness from the mold is reliably ensured.
In another embodiment, the wall is profiled in an undulating and/or rib-shaped and/or planar manner, at least in some section or sections. This enables the wiring harness to be matched optimally to the geometrical boundary conditions in the vehicle in a simple manner.
In another embodiment, a sealing element is arranged at one longitudinal end of the wall in order at least partially to prevent emergence of the envelope from the mold cavity.
In another embodiment, the mold has a first mold part and a second mold part. The first mold part has a first engagement element at one longitudinal end. The second mold part has a socket configured to correspond to the first engagement element at a longitudinal end of the second mold part which faces the longitudinal end of the first mold part. The first engagement element engages in the first socket and connects the first mold part positively to the second mold part, wherein the engagement element and the socket are configured in such a way in relation to one another that removal in the longitudinal direction is blocked by the engagement of the engagement element in the socket, wherein the engagement element and the first mold part are preferably of integral and materially unitary configuration. This enables the mold to be expanded or adapted particularly easily.
In another embodiment, the mold is configured to be fastened on a mounting board of a mold system.
However, the object is also achieved by a mold system.
It has been recognized that an improved mold system can be provided if the mold system comprises a mold and a mounting board, wherein the mold is configured as described above, wherein, on a side facing the mounting board, the mold has a further engagement element and, on a side facing the mold, the mounting board has at least one grid having a plurality of further sockets, or wherein, on a side facing the mounting board the mold has a further socket and, on a side facing the mold, the mounting board has a grid having a plurality of further engagement elements, wherein the further engagement element and the further socket are arranged in a manner corresponding to one another, wherein the further engagement element engages in one of the further sockets and connects the mounting board positively and in a reversibly detachable manner to the mold, wherein the other further sockets of the grid remain free or wherein one of the further engagement elements engages in the further socket and connects the mounting board positively and in a reversibly detachable manner to the mold, wherein the other further engagement elements of the grid remain free, wherein the further engagement element is preferably of integral and materially unitary configuration with the mold or with the mounting board.
As a result, the mold can be mounted particularly quickly on the mounting board, or the mold system can be adapted particularly quickly to a different wiring harness to be manufactured.
However, the object is also achieved by a method. Advantageous embodiments are indicated below.
According to the invention, it has been recognized that an improved method for manufacturing a wiring harness configured as described above can be provided if a mold configured as described above is provided, wherein at least one cable of the cable bundle is laid in the mold cavity, wherein, as the cable is laid in the mold cavity, the holding device is deformed and opened reversibly in such a way out of a closed position in a first region by means of a means, preferably being bent into the mold cavity or bent away from the mold cavity, that the opening is free in the first region, at least in some section or sections, and the holding device remains in the closed position in a second region and closes the opening, wherein the cable is laid in the mold cavity through the first region, wherein the means is moved along the mold cavity, wherein, after the removal of the means, the holding device relaxes and closes the mold cavity again, wherein at least one material of the envelope is introduced into the mold cavity, wherein the material flows in the direction of gravity in a processing time of the material of the envelope and, in doing so, encloses the cables of the cable bundle, at least in some section or sections.
In another embodiment, as the cable is laid in the first region, the first holding element and the second holding element are bent apart reversibly out of the closed position by the means, preferably being bent out into the mold cavity or away from the mold cavity or being bent in the longitudinal direction of the mold cavity, wherein, after the removal of the means, the holding elements bend back into the closed position and close the opening again.
In another embodiment, after the introduction of the material of the envelope into the mold cavity, a cover is placed on the holding device, wherein the cover at least partially blocks bending open of the holding device on a side facing away from the mold cavity.
In another embodiment, the material of the envelope is first of all introduced into the mold cavity above the first wall surface section and, during a subsequent time period, is introduced into the mold cavity above the second wall surface section and into the mold cavity above the wall surface transitional section.
In another embodiment, the material of the envelope is applied in a manner fluctuating in an undulating fashion in the transverse direction with respect to the cable bundle between the first wall section and the second wall section. In this way, reliable embedding of the cable bundle in the surrounding wall is ensured.
The invention is explained in greater detail below by means of figures, in which:
The wiring harness 1010 has a cable bundle 1020 comprising a plurality of cables 1025. The cables 1025 serve to transmit electric signals or an electric current between two points. The cables 1025 are arranged so as to run approximately in the same direction to one another. In this arrangement, a connecting system for connecting the wiring harness 1010 electrically to another electric device can be provided at the respective end of the wiring harness 1010. The cables 1025 of the cable bundle 1020 are embedded in an envelope 1030 of the wiring harness 1010. On the outside, the envelope 1030 has a lateral surface 1035 having an envelope contour.
The envelope 1030 preferably comprises at least one of the following materials: polyurethane, silicone, foam, closed-cell foam, open-cell foam, silicone foam, polyurethane foam. The wiring harness 1010 rests against the bearing surface 1015 by means of the lateral surface 1035. In this arrangement, an adhesive layer can additionally be provided between the bearing surface 1015 and the lateral surface 1035 in order to connect the wiring harness 1010 materially to the structure 1005.
In this arrangement, there is freedom of choice as regards the cross section of the envelope 1030, and it should preferably be chosen to correspond to the geometrical configuration of the bearing surface 1015. At the same time, it is particularly advantageous if the bearing contour and the envelope contour are identical in some section or sections, thus ensuring particularly good surface-to-surface contact between the wiring harness 1010 and the structure 1005.
It is particularly advantageous if the envelope 1030 comprises an indicating element 1038. The indicating element 1038 comprises a first bulge 1036, advantageously on an upper side 1037 of the wiring harness 1010. The first bulge 1036 projects above the upper side 1037. The first bulge 1036 is preferably of bead-type configuration and preferably extends parallel to the cable bundle 1020, at least in some section or sections. The indicating element 1038 can be arranged centrally with respect to a maximum first transverse extent b1. It is thereby possible in a simple manner to indicate the route of the cables 1025 of the cable bundle 1020. The indicating element 1038 can furthermore be used to indicate a predefined side for the insertion of the wiring harness 1010 into the structure 1005, thus enabling the wiring harness 1010 to be mounted particularly quickly during the assembly of the motor vehicle. In addition or as an alternative, it is also conceivable for the indicating element 1038 to comprise a notch 1040 in the upper side 1037 (illustrated in dashed lines in
The indicating element 1038 extends substantially over the entire longitudinal extent of the wiring harness 1010. This enables an insertion position of the cable bundle 1020 in the envelope 1030 to be determined in a particularly simple manner. This is advantageous particularly when the envelope 1030 is of particularly thick configuration and it is not possible to either feel or see the cable bundle 1025 in the envelope.
The wiring harness 1010 is configured in such a way as to be substantially identical to the wiring harness 1010 illustrated in
It is furthermore advantageous if the elasticity of the second material of the second layer 1205 is less than the elasticity of the first material since the second layer 1205 thereby forms a kind of plate which effectively protects the cable bundle 1020 from possible damage.
In this embodiment, the second layer 1205 is rectangular in cross section. Other configurations of the second layer 1205 are also conceivable. Thus, for example, the second layer 1205 can also be of semicircular, elliptical, U-shaped, C-shaped, cylindrical or some other configuration.
It is also conceivable for the second layer 1205, instead of having the flat configuration shown in
The wiring harness 1010 is of substantially identical configuration to the embodiment shown in
When the wiring harness 1010 is mounted, the second bulge 1120 and the material thereof is compressed, with the result that the second bulge 1120 presses the bulge contour 1121 thereof against the recess contour of the recess 1300, thus connecting the wiring harness 1010 frictionally to the recess 1300 of the vehicle component 1000 via the second bulge 1120. It is thereby possible to accommodate the wiring harness 1010 in a particularly space-saving manner in the structure 1005 of the vehicle component 1000.
In particular, it is advantageous here that the structure 1005 has a surface 1310 adjoining the recess 1300, wherein the upper side 1037 of the wiring harness 1010 is configured in such a way as to be substantially without any transition or step relative to the surface 1310. The upper side 1037 and the surface of the structure 1005 preferably lie in a common plane. In the case of the wiring harness 1010, it is possible here to dispense with the second bulge 1120, wherein in this configuration the wiring harness 1010 fills the recess 1300 substantially completely. It is also possible for the second bulge 1120 to be provided in only some section or sections in the longitudinal direction, while the envelope 1030 is arranged at a distance from the recess contour 1305 in the remaining regions (without the second bulge 1120), for example.
The configuration shown in
By virtue of the offset lateral surfaces 1415, 1420, the first envelope section 1400 has the first transverse extent b1 with respect to a first direction of longitudinal extent of the first envelope section 1400, and the second envelope section 1405 has a second transverse extent b2 with respect to a second direction of longitudinal extent of the second envelope section 1405. Here, the first transverse extent b1 is greater than the second transverse extent b2.
By way of example, the first direction of longitudinal extent in
The wiring harness 1010 is of similar configuration to the wiring harness 1010 shown in
The wiring harness 1010 is of substantially identical configuration to the wiring harness 1010 shown in
The wiring harness 1010 is of substantially identical configuration to the wiring harness 1010 shown in
The mold system 10 preferably has a mold 15 and a mounting board 20. By way of example, the mounting board 20 is flat. The mold 15 can have a first mold part 16 and at least one second mold part 17, which each abut at one longitudinal end 18 and are arranged by means of a lower side 19 on an upper side 25 of the mounting board 20, preferably in a common plane.
On the upper side 25, by way of example, the mounting board 20 has a grid 27 comprising a plurality of first sockets 142 of identical configuration to one another. The first sockets 142 are arranged in a regular pattern in the grid 27. For reasons of clarity, only some of the first sockets 142 have been illustrated in
To make it easier to explain the mold 15, reference is made below to a coordinate system 26. The coordinate system 26 is preferably configured as a right-hand system and has an x direction (direction of transverse extent), a y direction (longitudinal direction) and a z direction (height).
The mold 15 has a wall 30, an opening 35 and a holding device 40. The wall 30 delimits a mold cavity 45. During the manufacture of the wiring harness 1010, the cable bundle 1020 and the envelope 1030 are introduced into the mold cavity 45 via the opening 35. The opening 35 is arranged on the upper side and adjoins the mold cavity 45. In this embodiment, by way of example, the mold cavity 45 is configured with a rectangular cross section. It is also possible for the mold cavity 45 to be configured in some other way and to have a different cross section. Thus, for example, it is also conceivable for the mold cavity 45 to be of polygonal, triangular, rounded, circular and/or elliptical configuration (in some section or sections).
The wall 30 has a first wall section 50, a second wall section 55 and a wall bottom 60. The wall bottom 60 is arranged between the first wall section 50 and the second wall section 55. The first wall section 50 and the second wall section 55 delimit the mold cavity 45 laterally. The wall bottom 60 delimits the mold cavity 45 at the bottom. The opening 35 is preferably arranged above the wall bottom 60.
The first wall section 50 has a first wall surface 61 facing the mold cavity 45, the second wall section 55 has a second wall surface 62 facing the mold cavity 45, and the wall bottom 60 has a wall base 63 facing the mold cavity 45. In this embodiment, by way of example, the first and second wall surfaces 61, 62 extend in parallel. The wall base 63 is arranged perpendicularly to the first wall surface 61 and to the second wall surface 62. The wall base 63 and/or the wall surface 61, 62 can also be arranged in a different way. Thus, the first wall surface 61 can be arranged obliquely to the second wall surface 62. It would also be conceivable for the first wall surface 61 and the second wall surface 62 to adjoin one another directly and to dispense with the wall bottom 60, with the result that the mold cavity 45 has a triangular cross section, for example.
It is particularly advantageous here if at least one of the wall surfaces 61, 62 and/or the wall base 63 is laser-polished, at least in some section or sections. A particularly good surface finish can thereby be ensured. Furthermore, scoring and/or grooves, caused, for example, by introducing the mold cavity 45 into a basic body to produce the mold 15 by means of a machining process, is/are at least partially eliminated by the laser polishing. A mold 15 which is stable over a particularly long time, by means of which a large number of wiring harnesses 1010 can be produced without additional preparation of the mold 15, is thereby ensured.
In contrast to the flat configuration of the wall surface 61, 62 and/or of the wall base 63, it is also possible for the wall surface 61, 62 and/or the wall base 63 to be profiled in an undulating and/or rib-shaped manner, at least in some section or sections.
The holding device 40 comprises a first holding element 65, a second holding element 70, a first contact pressure element 75, a second contact pressure element 80 and a first fastening means 85. By way of example, the first holding element 65 and the second holding element 70 are configured symmetrically with respect to a plane of symmetry 86, which preferably passes centrally through the mold cavity 45. The plane of symmetry 86 is preferably configured as a YZ plane. It is also possible for the first holding element 65 and the second holding element 70 to be configured differently from one another.
The mold 15 is connected positively to the mounting board 20 by means of a second fastening means 135, which, in this embodiment, by way of example, has at least one pin 140 configured as a first engagement element, by way of example. Here, the pin 140 is connected to the wall 30 and engages by means of a free longitudinal end 141 in the first socket 142 of the grid 27 of the mounting board 20, said socket being configured to correspond to the pin 140. In order to provide particularly simple mounting of the mold 15 on the mounting board 20, there is for this purpose preferably a plurality of pins 140 configured correspondingly to the first sockets 142 and identically to one another, said pins being connected to the wall 30. Depending on the alignment of the mold 15, the pins 140 each engage in a first socket 142 of the grid 27, whereas the other first sockets 142 of the grid 27 remain free. In this case, the engagement can additionally be secured nonpositively in order to prevent the mold 15 accidentally dropping off the mounting board 20, e.g. when the mold system 10 is supposed to be tilted. It is possible to achieve this, for example, by configuring the pin 140 and the socket 142 as a transition fit system or as an interference fit system.
The second fastening means 135 can also be configured in a different way. In particular, it is possible here to conceive of the second fastening means 135 being designed as a screw system.
The first socket can also be arranged on the lower side 19 of the mold part 16, 17. On the upper side of the mounting board 20, the mounting board 20 preferably has a multiplicity of pins 140 configured as first engagement elements.
Instead of the first sockets 142, the grid 27 can alternatively have the pins 140 configured as first engagement elements extending in the direction of the mold 15. In this alternative, the first socket 142 is arranged on the mold 15, preferably in the wall 30. Depending on the alignment of the mold 15, some of the pins 140 of the grid 27 each engage in the first sockets 142 in the mounted state of the mold 15 on the mounting board 20 and, as described above, secure the mold 15 reversibly on the mounting board 20. The other pins 140, which do not engage in the first socket 142, remain (at least circumferentially) free and/or covered at least in some section or sections (on the upper side) by the mold 15.
The first holding element 65 is of plate-type configuration and comprises a first section 90 and a second section 95. In this case, a first section 90 of the first holding element 65 is arranged on the upper side of the first wall section 50. The first contact pressure element 75 is arranged on the upper side of the first section 90. The first contact pressure element 75 is preferably connected nonpositively to the first wall section 50 by means of the first fastening means 85. In this case, the first fastening means 85 supplies a first clamping force FS1, with which the first contact pressure element 75 presses the first holding element 65 onto the upper side of the first wall section 50. In this embodiment, the first contact pressure element 75 is, by way of example, configured to be precisely the same width in the X direction as the first wall section 50. It is thereby possible to ensure that the first holding element 65 is pressed reliably into contact by the first contact pressure element 75. Unwanted deformation of the first holding element 65 can furthermore be avoided.
A first free end 100 of the first holding element 70 ends above the opening 35. A second section 95 of the first holding element 65, which adjoins the first free end 100 of the first holding element 65, covers the opening 35 at the top. The second section 95 can preferably be of wedge-shaped configuration, at least in some section or sections. It is particularly advantageous here if a first lower side 105 of the first holding element 65 is of substantially flat configuration and if the first holding element 65 becomes thicker on the upper side (Z direction) from the free end 100 toward the first wall section 50.
The second holding element 70 is preferably at the same height on the opposite side, that is to say, by way of example, is arranged in a common XY plane, with respect to the first holding element 65. The second holding element 70 is arranged in mirror symmetry with respect to the plane of symmetry 86. The second holding element 70 is arranged on the upper side of the second wall section 55 and has a third section 110 and a fourth section 115, as well as being of plate-shaped configuration by way of example. The third section 110 of the second holding element 70 rests on the upper side of the second wall section 55. The second contact pressure element 80 is arranged above the third section 110. The first fastening means 85 supplies a second contact pressure force Fs2 for the second contact pressure element 80, with which the second contact pressure element 80 presses the second section 110 onto the upper side of the second wall section 55. Here, by way of example, the second contact pressure element 80 is configured to be of exactly the same width as the second wall section 55. In this case, the first contact pressure element 75 and the second contact pressure element 80 laterally delimit a first gap 120, which is exactly the same width as the opening 35.
The fourth section 115 adjoins a second free end 130 of the second holding element 70. Like the second section 95, the fourth section 115 is of wedge-shaped configuration, wherein a second lower side 125 of the second holding element 70 is arranged in a common plane with the first lower side 105 of the first holding element 65. The second free end 130 ends above the opening 35. On the upper side, the fourth section 115 thickens from the second free end 130 toward the third section 110.
Here, the fourth section 115 adjoins a second free end 130 of the second holding element 70.
The first free end 100 is preferably arranged at a distance from the second free end 130 of the second holding element 70. Here, a distance a between the first free end 100 and the second free end 130 is preferably 10 times smaller than a width of the opening 35 (in relation to a common XZ plane). As a result, the holding device (40) covers only a section of the opening 35. The first free end 100 and the second free end 130 can also be in direct contact with one another.
It is particularly advantageous if the holding element 65, 70 comprises a material which is particularly elastic and can be bent reversibly, at least by 90°, preferably into the mold cavity 45. It is particularly advantageous here if the holding element 65, 70 comprises silicone as the material. This furthermore enables the holding device 65, 70 to be configured to follow the geometrical configuration of the wall section 50, 55.
The mold 15 is of substantially identical configuration to the configuration shown in
The brush fibers 67, 72 extend substantially in the transverse direction. In this case, the second section 95 and the fourth section 115 are wider than half the width of the opening 35 in the transverse direction (x direction). As a result, the brushes 66, 71 extend into the respectively opposite brush 66, 71 and completely close the opening 35 at the top. It is also possible for the free ends 100, 130 to be arranged at a distance from one another, as shown in
The mold 15 is of similar configuration to the mold 15 shown in
The wall 30 of the first mold part 16 is of integral and materially unitary configuration. Here, the wall 30 advantageously comprises at least one of the following materials: polypropylene (PP), polytetrafluoride (PTFE), polyethylene (PE), preferably polyethylene with highly branched polymer chains (PE-LD), polyoxymethylene (POM). In addition or as an alternative, it is also conceivable for the wall 30 to comprise a material which has a particularly low surface tension with respect to polyurethane and/or silicone.
The first mold part 16 is of similar configuration to the mold 15 shown in
The holding device 40 is configured to correspond to the increased longitudinal extent. In order to enable the second fastening means 135 to be mounted on the upper side of the wall 30, a first recess 145 is additionally provided here in the holding device 40, preferably on a side facing away from the opening 45. In this case, by way of example, the first recess 145 in the holding device 40 extends both across the holding element 65, 70 and across the contact pressure element 75, 80. The first recess 145 leads to a slimmer configuration in the X direction, i.e. transversely to the longitudinal extent of the mold 15 and of the holding device 40 in the region of the second fastening means 135.
Moreover, the first fastening means 85 and the second fastening means 135 can be combined with one another, and therefore the mold 15 and the holding device 40 are secured on the mounting board 20 by means of the combined fastening means 85, 135.
In addition, a sealing element 150 (illustrated in dashed lines) is provided opposite the mold 15 shown in
The first mold part 16 can be configured as described in
The mold 15 is of similar configuration to the mold 15 shown in
The holding device 40 comprises a multiplicity of holding elements 65, 70 arranged at regular intervals in the longitudinal direction (x direction). The holding elements 65, 70 are each connected to the wall section 50, 55. The holding element 65, 70 preferably extends perpendicularly to an upper side 165 of the wall 30. In these variants of the holding elements 65, 70, each of the holding elements 65, 70 has a different cross section in a plane parallel to the upper side 165 (xy plane). Thus, for example, the holding element 65, 70 can have a circular cross section, a rectangular cross section, a trapezoidal cross section, an elliptical cross section and/or a circular cross section. It is also conceivable that the holding element 65, 70 tapers away from the upper side 165 of the wall 30. In this case, it is particularly advantageous if the holding element 65, 70 has a wedge-shaped cross section away from the upper side 165 of the wall 30, wherein a free end 170 of the holding element 65, 70 is set back from the wiring harness 1010. It is thereby possible to facilitate insertion of individual cables 1020 of the cable bundle 1015.
In this embodiment, the first holding element 65 is in each case arranged opposite the second holding element 70, with the result that the first and the second holding element 65, 70 are each arranged in a common XZ plane.
Of course, the first and the second holding element 65, 70 can also each be arranged offset relative to one another.
The mold 15 is of similar configuration to the mold 15 shown in
For the first aperture 185, the second fastening means 135 preferably has a screw instead of the pin 140. It is also possible, as shown in
The cable bundle 1020 of the wiring harness 11 is inserted into the mold cavity 45. In this case, by way of example, the cable bundle 12 is held in a predefined position by means of a first fastening element 200, 205. The first fastening element 200 is supported on the wall 30 on a side facing away from the cable bundle 12 and is embedded in the envelope 1030 of the wiring harness 1010.
More details of the first fastening element 200 are given in
The mold 15 is of similar configuration to the mold 15 shown in
Here, the first engagement element 205 is arranged on the end face of the webs 175, 180. In this case, by way of example, two second engagement elements 205, which are each preferably arranged on the web 175, 180, are provided for the end face 190 of the first mold part 160. Here, the first engagement element 205 has a trapezoidal cross section when sectioned in an xy plane, wherein the second engagement element 205 thickens away from the end face 190 of the first mold part 16.
Furthermore, the configuration of the second socket 210 and of the second engagement element 205 ensures that the mold parts 16, 17 can be detached reversibly from one another. In this way, the mold system 10 can be adapted particularly quickly to different configurations for the manufacture of the wiring harness 1010. Setup times for the mold system 10 can thereby be reduced.
In this case, by way of example, the wall 30 is configured with a low wall thickness. The wall 30 can be deep-drawn, for example.
The first wall section 50 has a first wall region 215 and a second wall region 220. By way of example, the first wall region 215 and the second wall region 220 adjoin one another in the longitudinal direction. The second wall section 55 is preferably configured symmetrically with respect to the plane of symmetry 86 to the first wall section 50 and has a third wall region 225 and a fourth wall region 230. The fourth wall region 230 is preferably arranged opposite the second wall region 220 in the transverse direction (x direction), and the third wall region 215 is preferably arranged opposite the first wall region 215 in the transverse direction. The first wall region 215 and the third wall region 225 preferably extend in parallel. The second and the fourth wall region 220, 230 are of arc-shaped configuration, by way of example.
The second wall region 220 is arranged set back relative to the second wall section 55. For example, the fourth wall region 230 is arranged set back relative to the second wall region 220, such that the mold cavity 45 has a widened portion 235 between the second wall region 220 and the fourth wall region 230. The widened portion 235 can be used to form the second bulge 1120. It is also conceivable for at least one of the wall regions 220, 225, 230, 235 to have a different geometrical configuration.
Furthermore, the wall 30 has a second aperture 240 in the wall bottom 60 at the level of the second and the fourth wall region 220, 230 in the longitudinal direction. By way of example, the second aperture 240 is of rectangular configuration and is configured as a through opening in the wall bottom 60. In this case, the second aperture 240 is configured to accommodate a second fastening element 400 (not shown).
Further details of the second fastening element 400 are given in
It is also possible for the second aperture 240 to be configured to correspond to an ejector 245 (illustrated in dashed lines in
The mold 15 is of similar configuration to the mold 15 shown in
The mold 15 is of similar configuration to the mold 15 shown in
The first fastening element 200 has a fastening plate 300, a first fastening bracket 305 and a second fastening bracket 310. The first fastening bracket 305 and the second fastening bracket 310 are arranged spaced apart relative to one another in the longitudinal direction on the fastening plate 300. In this embodiment, the fastening plate 300 is of flat configuration by way of example. It is also possible for the fastening plate 300 to be of curved shape. The fastening plate 300 rests by means of a lateral surface 315 facing away from the fastening bracket 305, 310 on the wall surface 61, 62 and/or on the wall base 63. The fastening bracket 305, 310 has at least one laterally arranged bearing surface 311, 312, which preferably rests respectively on the wall surface 61, 62 associated therewith.
The first fastening bracket 305 has a third aperture 320. The second fastening bracket 320 has a fourth aperture 325. The third and/or the fourth aperture 320, 325 are/is configured to correspond to the cable bundle 1020 or to one or more cables 1025 of the cable bundle 1020. The third and/or fourth aperture 320, 325 can preferably be of circular configuration. Other cross sections are also conceivable. In this case, the third and the fourth aperture 320, 325 are arranged opposite one another in the longitudinal direction.
The first fastening bracket 305 has a first insertion opening 330, and the second fastening bracket 310 has a second insertion opening 335. The first insertion opening 330 opens into the third aperture 320. The second insertion opening 335 opens into the fourth aperture 325. In this case, the insertion openings 330, 335 are arranged on opposite sides of the respective fastening bracket 305, 310 in the transverse direction (X direction). Here, the insertion opening 330, 335 can preferably enclose a 90° angle segment. Stable fixing and positioning of the cable bundle 1020 and/or of one or more cables 1025 of the cable bundle 1020 in the mold cavity 45 by means of the first fastening element 200 is thereby ensured.
The first fastening element 200 is of similar configuration to the embodiment of the first fastening element 200 shown in
It is also possible, as shown in
The first fastening element 200 is of similar configuration to the first fastening element 200 shown in
The first fastening element 200 is of similar configuration to the first fastening element 200 shown in
The second fastening element 400 comprises a supporting plate 405, a first engagement section 410 and a second engagement section 415. By way of example, the first engagement section 410 is arranged on the upper side of the supporting plate 405 in
The second engagement section 415 preferably has a rib-shaped structure 430 on the outside. In this case, the second engagement section 415 is configured to engage in an opening 435 in the structure 1005 of the vehicle component 1000 of the motor vehicle. This enables the wiring harness 11 to be fixed particularly well on the structure 1005.
It is particularly advantageous here if the second aperture 240 (cf.
Furthermore, by way of example, two first fastening elements 200 are arranged on the fastening plate 405. A position of the cable bundle 1020 and/or of at least one cable 1025 in the mold cavity 45 can be ensured by means of the first fastening element 200. At the same time, the wiring harness 1010 can be fixed reliably on the structure 1005 by means of the second engagement section 415 after the manufacture of the wiring harness 1010. At the same time, the supporting plate 405 preferably enters into a material joint with the envelope 1030 of the wiring harness 1010.
The mold system 10 is supplied in a first method step 3000. Here, heating of the mold 15 is dispensed with, and therefore the mold 15 is substantially at room temperature. Also dispensed with is the introduction of a mold release agent into the mold cavity 45, in particular on to the wall surface 61, 62 and/or the wall base 63. It is thereby possible to avoid a situation where the cables 1025 come into contact with the mold release agent and an envelope 1030 to be introduced cannot adhere to the cables 1025.
In a second method step 3005, which is optional, the first fastening element 200 and/or the second fastening element 400 are introduced into the mold cavity 45. During this process, the second engagement element 415 is inserted into the second aperture 240 until the supporting plate 405 is resting on the wall base 63 or on the wall surface 61, 62. The first fastening element 200 is inserted in such a way that it does not project from the mold 15 at the top and/or rests by means of the bearing surface 311, 312 on the wall surface 61, 62 or is preferably seated on the wall base 63 on the lower side.
In a third method step 3010, the individual cables 1025 of the cable bundle 1020 are inserted. During this process, the first holding element 65 and the second holding element 70 are deformed reversibly out of a closed position in a first region 1605 by means of a means 1600 in such a way that an insertion opening 1610 is formed between the holding elements 65, 70. For example, the first and the second holding element 65, 70 are bent into the mold cavity 40 or bent away from the mold cavity 40. By way of example, the insertion opening is delimited in the longitudinal direction by the means 1600 and in the transverse direction by the first and the second holding element 65, 70. The means 1600 can be a mechanical tool and/or finger of a human hand and/or the cable 1025 to be inserted. By way of example, a section of the means 1600 projects into the mold cavity 40 at the top.
In a second region 1615, which adjoins the first region 1605 on both sides in the longitudinal direction, the holding elements 65, 70 are in the closed position. In addition, the first and/or the second fastening element 200, 400 optionally ensure/s a defined position of a predefined cable 1025 of the cable bundle 1020 relative to the further cables 1025 of the cable bundle 1020. The first and/or the second fastening element 200, 400 can also position and secure the cable bundle 1020 in its position in the mold cavity. In particular, heating of the cable bundle 1020 in the wiring harness 1010 can be precisely defined by virtue of the defined arrangement of one or more cables 1025 in the cable bundle 1020. In particular, overheating of the wiring harness 1010 is avoided in this case. As a result, possible self-ignition of the wiring harness 1010, short circuits or other irreversible damage to the wiring harness 1010 are avoided.
In addition, the holding device 40 prevents the cables 1025 from sliding out of the mold cavity 45 in the second region 1615. Via the insertion opening 1610, at least one of the cables 1025 of the cable bundle 1020 is inserted by moving the means 1600 in the longitudinal direction following the mold cavity 40 and, in parallel therewith, inserting the cable 1025 to be inserted from above into the mold cavity 40 via the insertion opening 1610. During the movement of the means 1600, the holding elements 65, 70 bend open in front of the means 1600 and form the insertion opening 1610 and, after the means 1600 has passed, they move back into their closed position and cover the opening 35 of the mold cavity 40.
By means of the geometrical configuration of the holding device 40 which is described in
In a fourth the method step 3015, the material of the envelope 1030 is introduced into the mold cavity 45 at the top via the opening 35 in a low-pressure process. For this purpose, the holding elements 65, 70 can once more be bent reversibly out of their closed position (e.g. into the mold cavity 40 or away from the mold cavity 40) in order to introduce the material of the envelope 1030 into the mold cavity.
During this process, the second material for the formation of the second layer 1205 (cf.
If at least part of the mold 15 is configured as described in
During the introduction of the material into the mold cavity 45, it is particularly advantageous if the material of the envelope 1030 is applied in a manner fluctuating in an undulating fashion in a plane parallel to the wall base 63 between the first wall section 50 and the second wall section 55. Reliable embedding of the cables 1025 of the cable bundle 1020 in the envelope 1030 is thereby ensured.
If the material is configured in such a way that it foams during curing, the holding device 40 additionally prevents the cable bundle 1020 from being pushed out of the mold cavity 45 at the top and secures the cable bundle 1020 in the mold cavity 45. Secure enclosure of the cable bundle 1020 by the envelope 1030 is thereby ensured. Here, the first gap 120 enables the first bulge 1036 to be formed in a simple manner at the same time. In this case, the first bulge 130 can then be formed on the respective free end 100, 130 in a manner corresponding to the geometrical configuration of the holding elements 65, 70, at least in some section or sections (cf.
In a fifth method step 3020, the cover 155 is placed on the mold 15, wherein the cover 155 blocks bending up of the holding elements 65, 70 on a side facing away from the mold cavity 45. A particularly reliable geometrical configuration of the envelope 1030, in particular of the first bulge 1036, is thereby ensured, even when using foaming materials.
Attention is drawn to the fact that further method steps can be provided in addition to the method steps 3000, 3005, 3010, 3015, 3020 just described. It is also conceivable to dispense with some of the method steps 3000, 3005, 3010, 3015, 3020.
Attention is furthermore drawn to the fact that the different configurations of the molds 15 and/or mold parts 16, 17 described in
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2016 108 522.7 | May 2016 | DE | national |
This application is a National Stage of International Application No. PCT/EP/2017/061054, filed on May 9, 2017, which claims priority from German Patent Application No. 10 2016 108 522.7, filed on May 9, 2017.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2017/061054 | 5/9/2017 | WO | 00 |
