Arrangement for cable routing

Abstract

arrangement for cable routing where a cable protrudes through an opening in a housing part, wherein the cable protrudes through a ring part, in particular protrudes through the ring opening of a ring part, wherein the ring part has a break in the circumferential direction, in particular in the circumferential direction with respect to the ring axis of the ring part.

Description

[0001] The invention relates to an arrangement for cable routing.

[0002] It is generally known that cables are sometimes pulled and that the connections of the cable's wires must therefore be relieved of this tensile force.

[0003] A pre-assembled cable is known from NL2033427 B1.

[0004] A half-screw connection is known from DE 10 2021 106 864 A1.

[0005] A seal for an opening closure is known from DE 697 14 720 T2.

[0006] The invention is therefore based on the objective of further developing an arrangement for cable routing, whereby simple assembly and disassembly should be achieved.

[0007] According to the invention, the problem is solved by the arrangement according to the features specified in claim 1.

[0008] Key features of the cable routing arrangement are that a cable protrudes through an opening in a housing part, wherein the cable protrudes through a ring part, in particular protrudes through the ring opening of a ring part, wherein the ring part has a break in the circumferential direction, in particular in the circumferential direction with respect to the ring axis of the ring part.

[0009] An advantage of this design is that the ring part can be attached to the cable inside the housing after the cable has been connected. The cable is pushed onto the cable through the opening, particularly in a radial direction, and then, when the screw-on part is tightened onto the tubular section, the ring part is pressed onto the ring part via the socket part. This presses the ring part against a radially inward-projecting shoulder, or constriction, of the tubular section, causing it to spread open towards the cable.

[0010] This means the strain relief can be installed afterwards, especially after the cable has been connected. It doesn't need to be attached to the cable beforehand, but can be installed before the screw-on part is screwed on.

[0011] In an advantageous embodiment, the smallest clear opening of the interruption is smaller than the outer diameter of the cable. It is advantageous that the ring portion grips the cable because, when it is placed on the cable, it is elastically deformed and expands, then grips the cable radially inwards.

[0012] In an advantageous embodiment, the ring part is elastically deformable, and in particular non-plastically deformable, such that the smallest clear opening is larger than the outer diameter of the cable. It is advantageous that the ring part is elastically deformed, and not plastically deformed, when it is fitted onto the cable.

[0013] In an advantageous embodiment, the ring section has tab areas that project axially from the ring section, on which claws, in particular barbs, project radially inwards are formed. It is advantageous that the tab areas are deflected radially and thus, with their spring force, press the claws onto the cable.

[0014] In a preferred embodiment, the ring part is made of rubber or plastic. The advantage here is that a very wide elastic range can be achieved.

[0015] In an advantageous embodiment, the largest internal diameter radially within the claws is smaller than the outer diameter of the cable. It is advantageous that the largest internal diameter, i.e., the diameter of the largest cylinder that can pass through the ring opening, is smaller than the diameter of the cable, and therefore the ring section with its elastically deflected tab areas presses the claws radially inwards onto the cable. Preferably, the claws are designed as barbs so that large forces counteract any displacement of the cable.

[0016] In an advantageous embodiment, the smallest radial distance between the claws, relative to the ring axis of the ring section, is less than half the outer diameter of the cable. It is advantageous that the ring section, with its elastically deflected tab areas, presses the claws radially inwards onto the cable. Preferably, the claws are designed as barbs so that large forces counteract any displacement of the cable.

[0017] In an advantageous embodiment, the tab areas are spaced apart from each other in the circumferential direction. The advantage here is that, when the cable is deflected or subjected to tensile stress in different directions, the ring section engages the cable in a correspondingly distributed manner around its circumference.

[0018] In an advantageous embodiment, at least one claw projecting radially inwards is arranged on each of the tab areas. It is advantageous that each claw is pressed against the elastically prestressed tab area.

[0019] In an advantageous embodiment, a bushing part is arranged axially between the ring part and the screw part. It is advantageous that the screw part presses against the ring part via the bushing part, and the ring part is positioned against a shoulder located on the side of the ring part facing away from the screw part.

[0020] In an advantageous embodiment, a circumferential sealing lip projecting radially inwards is formed on the bushing part, in particular the grommet, especially the rubber grommet. This lip rests against the radial outer circumference of the bushing part and thus seals it. An advantage of this is the increased degree of protection.

[0021] In an advantageous embodiment, a screw component of the arrangement is screwed with its internal thread onto an external thread which is cut or formed into a tubular area, in particular a projection or extension, of the housing part. The advantage here is that high contact forces can be generated and thus the elastic parts are sufficiently deformable.

[0022] In a preferred embodiment, the ring section functions as a strain relief ring. The advantage here is that the connections of the cable's electrical conductors are protected by strain relief.

[0023] In a preferred embodiment, the screw component is designed as a union nut. The advantage here is that a cost-effective part can be used.

[0024] In an advantageous embodiment, the socket part is designed as a grommet, in particular a rubber grommet. The advantage here is that the socket part can be plugged onto the cable and transmits the compressive force from the screw part to the ring part, deforming itself under the force and being pressed against the sealing edge formed on the tubular section. This allows for a higher degree of protection.

[0025] In a preferred embodiment, the cable has a sheath that surrounds insulated electrical conductors. An advantage of this design is that a cost-effective cable can be used.

[0026] In an advantageous embodiment, the ring part is positioned and / or pressed against a radially inwardly projecting shoulder of the housing part, particularly of the tubular section of the housing part, by the bushing part. It is advantageous that the screw part presses on the ring part axially over a large distance, especially since the pressing force is transmitted by the bushing part.

[0027] In an advantageous embodiment, the housing part surrounds electrical connection elements, forming a housing that connects the electrical conductors of the cable to other electrical conductors. An advantage of this is that the electrical conductors of the cable are connected to other electrical conductors within the housing part, and no tensile stress occurs, as the ring-shaped part absorbs this stress.

[0028] Further advantages arise from the dependent claims. The invention is not limited to the combination of features of the claims. For those skilled in the art, further meaningful combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent, in particular from the problem statement and / or the problem arising from a comparison with the prior art.

[0029] The invention will now be explained in more detail with reference to schematic illustrations: In the Fig. Figure 1 shows a side view of an arrangement according to the invention for cable routing. In the Fig. Figure 2 shows a schematic representation of a corresponding longitudinal section. In the Fig. 3 is an area of Fig. 2 shown enlarged. In the Fig. Figure 4 shows the arrangement in exploded view. In the Fig. 5 is a ring part 50 of the arrangement shown in oblique view.

[0030] As shown in the figures, the arrangement has a housing part 1 which has a recess surrounded by a tubular area, in particular a projection or extension, which has an external thread.

[0031] A threaded nut-shaped screw part 2 has an internal thread with which the screw part 2 is screwed onto the external thread and thus covers the opening.

[0032] A cable 3 is inserted through a continuous recess of the screw part 2 and through a socket part 21, in particular a grommet, in particular a rubber grommet.

[0033] The bushing part 21 is tubular in design and is received in the cavity area surrounded by the screw part 2 and the tubular area, in particular the projection.

[0034] With a radially projecting shoulder formed on the bushing part 21, the bushing part 21 rests against the end face of the tubular area. Thus, the bushing part 21 is sealed against the tubular area at a sealing edge 30.

[0035] Furthermore, a radially inwardly projecting sealing lip 31 is formed on the socket part 21, which rests against the outer surface of the cable 3 and thus seals the socket part 21 towards the cable 3.

[0036] The screw part 2, which is screwed onto the external thread, presses against the end face of the bushing part 21, which is facing away from the housing part 1 in particular, and which is thus pressed in an axial direction, in particular in the direction of the cable 3 received, and therefore rests with its shoulder against the end face of the tubular area.

[0037] The socket part 21 presses a ring part 20, which is also attached to the cable 3, against a radially inwardly projecting shoulder of the tubular area of ​​the housing part 1.

[0038] The bushing part 21 is made of plastic or rubber.

[0039] The bushing part 21 is also made of plastic or rubber.

[0040] The end face of the bushing part 21, facing away from the screw part 2, presses the ring part 20 against the radially inward-facing shoulder.

[0041] The ring part 20 has claws 32, in particular barbs, on its radial inner side, which press into and / or hook into the cable 3. The claws 32 are formed on tab areas 33 of the ring part 20 that project axially in the direction and extend radially inwards.

[0042] The axial direction is aligned parallel to the thread direction of the internal and external threads and / or parallel to the direction of the ring axis of the ring part 20. The radial direction is related to the axis of rotation of the screw part 2 and / or to the ring axis of the ring part 20, and the circumferential direction is also related.

[0043] The tab areas 33 are spaced apart from each other in the circumferential direction. Thus, the claws 32 are also spaced apart from each other in the circumferential direction and press into the sheath of the cable 3, since the largest clear inner diameter of the ring part 20 is smaller than the diameter of the cable 3, and in particular, larger than the largest outer diameter of the cable 3.

[0044] As in Fig. As shown in Figure 5, the ring part 20 has a slot 50, in particular an interruption, so that the cable can be inserted into the ring part 20 in a radial direction through the slot 50.

[0045] In the characters, especially in Fig. Figure 3 shows the claws 32 in their relaxed state, and the representation of the claws 32 therefore overlaps with the representation of the cable 3. In reality, the claws 32 press against the outer surface of the cable and are elastically prestressed.

[0046] Cable 3 contains several electrical conductors 4.

[0047] In particular, screw part 2 is designed as a union nut.

[0048] Thus, the area covered in the axial direction by the screw part 2 overlaps with the area covered in the axial direction by the housing part 1, in particular the tubular area of ​​the housing part 1.

[0049] The area covered by the bushing part 21 in the axial direction overlaps both with the area covered by the screw part 2 in the axial direction and with the area covered by the housing part 1, in particular the tubular area of ​​the housing part 1, in the axial direction.

[0050] On the bushing part 21, in particular the grommet, in particular the rubber grommet, a circumferential sealing lip 31 is formed, projecting radially inwards, which rests against the radial outer circumference of the bushing part 21 and thus seals.

[0051] The screw part 20 is made of plastic.

[0052] The ring part 20 is made of an electrically insulating material.

[0053] In further embodiments according to the invention, the screw part 2 is made of metal instead of plastic.

[0054] In an alternative embodiment according to the invention, the ring part 20 is omitted and the bushing part 21 is designed to be axially long such that it abuts the step of the opening, which is designed as a stepped bore in the housing part 1. When the screw part 2 with its internal thread is screwed onto the external thread of the housing part 1, not only is the radially projecting collar area of ​​the bushing part 21 axially compressed, but also the remaining essentially hollow cylindrical area of ​​the bushing part, since its end facing away from the collar area abuts the step of the stepped bore and is compressed axially further as it is screwed on. Reference symbol list 1 housing part 2 screw parts 3 cables 4 lines 20 ring part 21 Bushing part, in particular grommet, in particular rubber grommet 22 tubular area 30 Sealing edge 31 Sealing edge 32 Claw, especially barb 33 tab areas 40th level 50 slots, in particular interruption of the ring part 20 QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] NL 2033427 B1

[0003] DE 10 2021 106 864 A1

[0004] DE 697 14 720 T2

[0005]

Claims

[1] Arrangement for cable routing, where a cable protrudes through an opening in a housing part, wherein the cable protrudes through a ring part, in particular protrudes through the ring opening of a ring part, characterized by , that the ring part has a break in the circumferential direction, in particular in the circumferential direction with respect to the ring axis of the ring part. [2] Arrangement for cable routing, where a cable protrudes through an opening in a housing part, the opening is designed as a stepped bore, wherein the cable is passed through a socket part (21) received in the opening and through a screw part (2) which is screwed to the housing part, wherein the bushing part (21) has a radially protruding collar area which is radially surrounded by the screw part and is elastically deformed, in particular where the collar area protrudes radially beyond the edge of the opening, characterized by , that the bushing part (21) is pressed by the screw part (2) against the step, in particular the shoulder, of the step bore, in particular wherein the step limits the bushing part (21) in the axial direction. [3] Arrangement according to claim 1, characterized by , that the smallest clear width of the interruption is smaller than the outer diameter of the cable. [4] Arrangement according to one of the preceding claims, characterized by , that the ring part is so elastic, in particular non-plastic, deformable that the smallest clear width of the interruption is larger than the outer diameter of the cable. [5] Arrangement according to any of the preceding claims, characterized by, that the ring part has tab areas that protrude axially on the ring part, on which claws, in particular barbs, are formed that project radially inwards. [6] Arrangement according to any of the preceding claims, characterized by that the ring part is made of rubber or plastic. [7] Arrangement according to any of the preceding claims, characterized by , that the largest radial clear diameter within the claws is smaller than the outer diameter of the cable, and / or that With respect to the ring axis of the ring part, the smallest radial distance of the claws is less than half the outer diameter of the cable. [8] Arrangement according to any of the preceding claims, characterized by that the tab areas are spaced apart from each other in the circumferential direction. [9] Arrangement according to any of the preceding claims, characterized bythat at least one claw projecting radially inwards is arranged on each of the tab areas. [10] Arrangement according to any of the preceding claims, characterized by , that a bushing part is arranged axially between the ring part and the screw part. [11] Arrangement according to any of the preceding claims, characterized by , that a circumferentially circumferential sealing lip projecting radially inwards is formed on the bushing part, in particular the grommet, in particular the rubber grommet, which rests against the radial outer circumference of the bushing part and thus seals. [12] Arrangement according to any of the preceding claims, characterized by , that a screw part of the arrangement is screwed with its internal thread onto an external thread which is cut or formed into a tubular area, in particular a projection or extension, of the housing part. [13] Arrangement according to any of the preceding claims, characterized by, that the ring part acts as a strain relief ring, and / or that the screw part is designed as a union nut. [14] Arrangement according to any of the preceding claims, characterized by , that the bushing part is designed as a grommet, in particular a rubber grommet, and / or that the cable has a sheath which surrounds insulated electrical conductors. [15] Arrangement according to any of the preceding claims, characterized by , that the ring part of the bushing part is positioned and / or pressed against a radially inwardly projecting shoulder of the housing part, in particular the tubular area of ​​the housing part, and / or that The housing part surrounds electrical connection elements forming a housing, which connect the electrical conductors of the cable with other electrical conductors.

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