Cable screw connection system

Abstract

The present invention relates to a cable screw joint system for being arranged on a housing wall, comprising: a guide element, the guide element having an opening for accommodating a cable, a first bearing surface for abutting against a first side of the housing wall, a first end region and an opposite second end region, wherein an external thread is arranged at least on the circumference of the first end region; and a fixing element, the fixing element having a second bearing surface for abutting against a second side of the housing wall and an internal thread on an inner surface, wherein the internal thread is suitable for engaging with an external thread on the guide element in a tightened state, wherein at least one contact surface with a contact structure is arranged adjacent to the external thread on the circumference of the guide element and on the inner surface of the fixing element, respectively, and wherein the contact surfaces are suitable for mechanically contacting each other in a tightened state. In addition, the present invention also proposes a guide element and a fixing element for a cable screw joint system.

Description

Technical Field

[0001] The invention relates to a screw-type cable joint system for being arranged on a housing wall, a guide element for the screw-type cable joint system and a fixing element for the screw-type cable joint system. Background Art

[0002] Cable screw connection systems can be used, for example, in the photovoltaic field; they are used, for example, to connect one or more solar modules to an inverter via a housing wall.

[0003] The guiding element of the cable spiral joint system can be inserted into the housing wall through an opening at one end and can be fixed in the housing wall between a first bearing surface on the guiding element and a second bearing surface on a fixing element fixed to the guiding element. The opening partially or completely extends through the cable spiral joint system, and the cable can be received or received in the opening and / or the cable can be guided through the opening. Such a cable spiral joint system usually also provides a tension release device for the spirally engaged cable at the same time. For example, DE102016118521 A1 describes a cable spiral joint system.

[0004] Furthermore, the cable screw engagement system is capable of forming a plug connection for contacting the cable with a mating plug connection.

[0005] The cable screw joint system is usually fixed in the opening of the housing wall in the following manner, namely, a guiding element of the cable screw joint system has an external thread on the end passing through the opening, and after the end is guided through the opening, for example, into the inner cavity of the housing, such as the inner cavity of the housing of an inverter, a fixing element, such as a nut, is screwed onto the external thread, wherein by screwing the fixing element, a first supporting surface on the guiding element is pulled toward the housing wall and fixed on the housing wall between the first supporting surface and the second supporting surface on the fixing element.

[0006] Cable screw joint systems with fine threads are known from practice in the applicant's own practice. In particular in difficult-to-access installation areas, a high level of effort is required to fix the cable screw joint system in the housing wall, since the assembly tool must be reinstalled several times. Moreover, due to shaking and vibrations of the housing, the assembly of the cable screw joint system can become loose, and thus the secure connection of the cable screw joint system to the housing wall can become loose. In addition, due to the complex structure, the manufacture of the known cable screw joint systems is usually expensive. Summary of the invention

[0007] The object of the present invention is to provide an improved screw cable joint system which can be installed simply, quickly and reliably and which is advantageous to manufacture.

[0008] This object is achieved by the subject matter having the features of claim 1 .

[0009] According to the present invention, a cable spiral joint system for being arranged in a shell wall is provided, comprising: a guide element, the guide element having an opening for receiving the cable, a first supporting surface for abutting against a first side of the shell wall, a first end region and an opposite second end region, wherein an external thread is provided at least on the circumference of the first end region; a fixing element, the fixing element having a second supporting surface for abutting against a second side of the shell wall and an internal thread on an inner surface, wherein the internal thread is suitable for engaging with the external thread on the guide element in a tightened state, wherein at least one contact surface with a contact structure is arranged on the circumference of the guide element in close proximity to the external thread and on the inner surface of the fixing element, and wherein the contact surfaces are suitable for mechanically contacting each other in a tightened state.

[0010] The guide element can be designed in a sleeve-like manner in order to be passed through an opening in the housing wall. An electrical or optical cable can be guided into or through an opening of the guide element, which is designed, for example, as a through hole. The guide element has a first bearing surface, which is designed, for example, in the form of a disk and has a diameter that is greater than the diameter of the opening in the housing wall. However, the first bearing surface can also have another geometry that is suitable for at least partially overlapping the opening in the housing wall.

[0011] Preferably, an external thread can be arranged at least partially around the through hole adjacent to the first bearing surface in the direction of the first end region of the guide element. The external thread can have one or more pitches and can be designed continuously or discontinuously along the thread course.

[0012] The fixing element may also be referred to as a "wall fixing" and may be constructed in one piece or in multiple pieces. In an example, the fixing element may be constructed to be nut-shaped. The inner surface of the fixing element may be configured as a cylindrical opening that may extend through the fixing element.

[0013] The "tightened state" may refer to a state in which the fixing element is completely screwed onto the guide element. The second bearing surface may be designed on the end surface of the fixing element facing the guide element, for example, as a flat surface with a geometry that overlaps the opening in the housing wall. For example, the second bearing surface may be disc-shaped and have a diameter greater than the diameter of the opening in the housing wall. As a result, the fixing element can fix the guide element in the housing wall in the tightened state and is in mechanical contact with the guide element and the housing wall.

[0014] In addition, at least one contact surface with a contact structure is respectively arranged on the circumference of the guide element, preferably in the direction of the second end region, adjacent to the external thread and on the inner surface of the fixing element, wherein the contact surfaces are suitable for mechanically contacting each other in the tightened state. In one example, the contact surface of the guide element can also be adjacent to the external thread in the direction of the first end region and mechanically contact the correspondingly arranged contact surface of the fixing element in the tightened state. The contact surface can be formed by a very rough surface or can have a tool-bonded, finely worked contour, such as grooves that mechanically contact each other in the tightened state. The contact surface can also be referred to as a locking surface and / or a friction surface in this article, and the contact structure is referred to as a locking structure and / or a friction structure.

[0015] Advantageously, the fastening element is thus fixed to the guide element in the screwed state, so that the quality of the resulting connection is at least similar to that of a fine thread on the fastening element, but time-consuming screwing of the fastening element onto the guide element is omitted and a secure fixation is nevertheless ensured.

[0016] In one example, the contact surface has grooves as contact structures.

[0017] The term "grooving" is to be understood as a pattern of grooves or notches extending parallel to one another or crossing one another. In particular, the "grooving" can be formed by means of a toothed rack or toothed grooves. Advantageously, the grooves on the circumference of the guide element and on the fastening element mesh with one another during tightening of the fastening element in such a way that unscrewing the fastening element becomes significantly more difficult. Further advantageously, this makes it possible to significantly make it more difficult for the fastening element to come loose unintentionally in the tightened state, for example under the influence of vibrations.

[0018] In one example, the internal thread includes a first single pitch or at least a partial region of the first single pitch.

[0019] A single pitch can be understood here as a 360° spiral with a defined pitch on the inner surface of the fixing element. A local area of ​​a single pitch can also be referred to as a “side rib”. In one example, the internal thread comprises only a first single pitch.

[0020] Advantageously, such a design of the internal thread can shorten the assembly time. Compared to fine threads that require expensive expansion cores in the tool, the production tool for the cable screw connection system, for example a plastic tool, can also be produced more cost-effectively.

[0021] In one example, the internal thread comprises at least two diametrically opposed local regions of a first single pitch separated by an interruption in the pitch. In an alternative example, the internal thread comprises a plurality of local regions of equal or different lengths of the first single pitch separated by a plurality of interruptions in the pitch.

[0022] Depending on the desired field of application, the number of partial regions of the thread pitch and their respective lengths can be selected differently.

[0023] In one example, the internal thread comprises a second single pitch or at least a partial region of the second single pitch, wherein the first single pitch and the partial region of the second single pitch are identically designed and are arranged axially above one another on the inner surface of the fixing element.

[0024] For example, two 360°-circling helices can be arranged one above the other on the circumference. In this example, the partial regions can also be implemented in a double manner and arranged one above the other axially along the inner surface of the fixing element.

[0025] Advantageously, by additionally providing a second single thread pitch, the quality of the threaded connection can be further improved.

[0026] In one example, the external thread and / or the internal thread is formed as a multi-thread. For example, the thread pitch of the external thread is within a range that is equivalent to one third to one quarter of the core diameter.

[0027] Advantageously, by such a large thread pitch, the fixing element can be screwed into engagement with the guide element more easily and more quickly than with known thread pitches in cable screw engagement systems.

[0028] In one example, at least one slot-shaped recess is provided in the second contact surface of the fastening element, which recess extends parallel to the guide element in the screwed state, in the material of the fastening element.

[0029] By means of such a slot-like recess, a so-called "breathing zone" can be formed in the material of the fastening element. Advantageously, the fit of the fastening element on the guide element can thereby be further improved. For example, the section of the fastening element having the contact surface can be more easily widened by the recess and thus tightening to a secure and reliable fit can be simplified. It is thus even possible to tighten the fastening element securely manually without tools.

[0030] The recess can, for example, at least partially surround the contact surface of the fixing element in an annular manner. The resulting flange can be arranged deeply in the second bearing surface. For example, the resulting flange can be cylindrically configured and deeply arranged in the second bearing surface in the range of one to several millimeters.

[0031] Advantageously, a collar arranged deep or set back in this way allows for a better clamping of the threads to one another when the fastening element is screwed onto the guide element.

[0032] In one example, at least one or at least two projections are arranged on the first support surface in the direction of the first end region.

[0033] The protrusions can be configured as points or flat surfaces which are arranged on the first support surface in a partial region. Depending on the application, the protrusions can also be arranged on the first support surface in an annular or partially surrounding manner, or in the form of a surrounding ring on the support surface.

[0034] Advantageously, the projection is used to protect the first bearing surface or the seal from being compressed from damage, and the seal can be arranged on the first bearing surface in one embodiment and can be between the first bearing surface and the housing wall in the assembled state. In one example, the cable screw joint system includes a seal. In addition, the projection is also used to give feedback to the assembler, especially when the cable screw joint system is manually assembled. For example, when the cable screw joint system is not tightened with a torque wrench. For example, the abutment of the projection on the housing wall signals the assembler that the installed seal is sufficiently firmly compressed to ensure its sealing function. The projection can occupy an area of ​​several mm2 and can have a height of one millimeter or several millimeters. If the projection is not arranged on the bearing surface, it can be ensured that the installed seal will not be over-compressed only by a limited tightening torque. Advantageously, by arranging at least one or at least two projections, excessive compression of the seal in the case of manual assembly can be prevented.

[0035] For example, the projections can be arranged diametrically opposite each other on the first contact surface.

[0036] In one example, the fixing element is designed in two parts and comprises two halves, wherein the halves are suitable, for example, to be connectable to one another in a form-fitting manner, in particular by a latching connection.

[0037] The two halves can for example first be pushed on the region of the external thread on the guide element and then move relative to each other until the pitch or a partial region of the pitch in the two halves is connected or engaged with the external thread of the guide element. By a form-fitting connection, the two halves are connected to each other in a form-fitting manner.

[0038] Advantageously, the fastening element can thereby be arranged on the guide element more quickly and more reliably.

[0039] In one example, the intermeshing regions of the internal and external threads are roughened at least in some regions and have, for example, an average roughness depth Rz in the range of 20 to 30, preferably a roughness of class 36 according to VDI 3400.

[0040] Roughness according to VDI 3400 class 36 is documented in the VDI 3400 standard published in June 1975.

[0041] Advantageously, the connection between the guide element and the fastening element can be further improved by a roughened configuration of the interengaging regions of the internal and external threads and / or of the contact surfaces.

[0042] The second end region of the guide element can be configured as a plug connector, which can be plug-connected with a matching counterpart plug connector. In one example, the spring connection element is arranged on the second end region of the guide element.

[0043] Advantageously, by means of the embodiment with a spring connection element, the guide element can be the first component of a plug-in connection, wherein the second component can have a corresponding connection element in order to enable a simple plug-in connection of the two components.

[0044] The present invention also relates to a guiding element for a cable screw joint system, in particular for the cable screw joint system described herein, the guiding element having: a through hole for receiving a cable; a supporting surface for abutting one side of a shell wall; and a first end region and an opposite second end region, wherein an external thread is arranged at least on the circumference of the first end region, and wherein at least one contact surface having a contact structure is arranged on the circumference of the guiding element adjacent to the external thread.

[0045] In addition, the present invention relates to a fixing element for a cable screw joint system, in particular for the cable screw joint system described herein, the fixing element having: a supporting surface for abutting one side of a shell wall; an internal thread on an inner surface, wherein the internal thread is suitable for engaging with an external thread on a guide element, in particular the guide element described herein, in a tightened state, wherein at least one contact surface having a contact structure is arranged on the inner surface.

[0046] In other examples, the guiding element and the fixing element may include features described for the cable helical engagement system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The concept underlying the present invention is explained in detail below with reference to the exemplary embodiments shown in the drawings.

[0048] Figure 1 A view showing a cable screw engagement system disposed on a housing wall;

[0049] Figure 2 A view showing a guide element;

[0050] Figure 3A , Figure 3B , Figure 3CA view showing a fixing element according to a first embodiment;

[0051] Figure 4A , Figure 4B , Figure 4C A view showing a fixing element according to a second embodiment;

[0052] Figure 5A , Figure 5B , Figure 5C A view showing a fixing element according to a third embodiment;

[0053] Figure 6 A view showing half of a two-part fastening element according to a fourth embodiment;

[0054] Figure 7 A view showing a fixing element according to a fifth embodiment;

[0055] Figure 8 shows a side view of a cable screw joint system with a guide element and a fixing element in a tightened state; and

[0056] Fig. 9 Shown through Figure 8 A cross-sectional view of a cable spiral splice system is shown. DETAILED DESCRIPTION

[0057] Figure 1 The present invention shows a view of a cable screw connection system 1 arranged on a housing wall 11. The first end region 5 of the guide element 3 passes through the opening 9 in the housing wall 11 and rests on the side of the housing wall 11 facing the second end region 7 of the guide element 3 with a first bearing surface 13 or, as in the example shown, with a sealing element 15 arranged on the first bearing surface 13.

[0058] Figure 1 Also shown are the external thread 17 arranged on the circumference of the first end region 5 and the opening which is designed here as a through-hole 19 and extends through the guide element 3 .

[0059] The fixing element 21 shown is nut-shaped and has a hexagonal structure on its outer surface in order to fix the drive tool on the fixing element 21. In addition, the fixing element 21 shown has an internal thread 23 on the inner surface. When the fixing element 21 is screwed onto the guide element 3, the fixing element 21 shown can be arranged around the guide element 3. For this purpose, the internal thread 23 is suitable for engaging with the external thread 17 on the guide element 3 in the screwed state. For this purpose, the fixing element 21 shown has an internal thread 23, which has two diametrically opposite partial areas of a single pitch, which are separated by an interruption in the pitch, as explained in more detail with reference to the following figures.

[0060] Contact surfaces 27a, 27b having contact structures are respectively provided on the circumference of the guide element 3 adjacent to the external thread 17 in the direction of the second end region 7 and on the inner surface of the fixing element 21. When the fixing element 21 is screwed onto the guide element 3, the contact surfaces 27a, 27b are in mechanical contact with each other.

[0061] Figure 2 A view showing a guide element 3 is shown. The guide element 3 shown is a guide element 3 which has been previously Figure 1 The guide element 3 is shown in FIG. Figure 2 The outer thread 17 on the guide element 3 shown has multiple pitches which are formed with interruptions along the thread course.

[0062] A contact surface 27b having a contact structure is provided on the circumference of the guide element 3 in the direction of the second end region 7 between the external thread 17 and the first bearing surface 13 of the guide element 3. Figure 2 The contact surface 27b shown in the figure has grooves oriented parallel to each other as contact structures. The grooves on the circumference of the guide element 3 and the grooves on the fixing element (not shown) can mesh with each other during the tightening of the fixing element in such a way that the unscrewing of the fixing element becomes significantly more difficult. Further advantageously, it can be made significantly more difficult to loosen the fixing element in the tightened state, for example due to possible effects of vibrations. In the example shown, the guide element 3 specifically includes two opposite contact surfaces 27a, which extend to different extents in the axial direction (from the first end region to the second end region).

[0063] Some or all surfaces of the external thread 17 (in particular the thread profile flanks) and / or the first bearing surface 13 shown can have an average roughness depth Rz in the range of 20 to 30, preferably a roughness according to VDI 3400 class 36. Similarly, surfaces of the fastening element 21, in particular the internal thread 23 (e.g. the thread profile flanks) and / or the second bearing surface 25 can have an average roughness depth Rz in the range of 20 to 30, preferably a roughness according to VDI 3400 class 36. As an alternative or in addition to the grooves, the contact surfaces 27a, 27b of the guide element 3 and / or the fastening element can also have such a roughness depth and roughness.

[0064] In addition, Figure 2 , the first support surface 13 is shown as being substantially flat. Figure 2 In the diagram, the first contact surface 13 is shown in an annular form, but can also have another geometry as long as it is suitable for at least partially covering the opening in the housing wall.

[0065] At the edge of the first bearing surface 13 in the direction of the first end region 5, two projections 29a, 29b are arranged diametrically opposite each other on the first bearing surface 13. The projections 29a, 29b can occupy an area of ​​several mm2 and have a height of one or several millimeters. A sealing element (see, for example, Figure 1 ), wherein the edge of the sealing element does not cover the protrusions 29a, 29b. The protrusions 29a, 29b shown serve to protect the first bearing surface 13 or the seal arranged thereon from damaging compression during the assembly of the cable screw joint system. As an alternative or in addition to the shown embodiment, more than two protrusions can also be arranged on the bearing surface 13. In an alternative embodiment, no protrusions can also be arranged on the bearing surface 13. In this alternative embodiment, it is usually ensured with a limited torque that the installed sealing element is not damaged due to excessive compression.

[0066] Figure 3A , Figure 4A and Figure 5A An isometric view is shown, Figure 3B , Figure 4B and Figure 5B A top view is shown, and Figure 3C , Figure 4C and Figure 5C Further views of embodiments of fastening elements 21 , 21 ′, 21 a ″, 21 b ″ are shown.

[0067] Figure 3A , Figure 3B and Figure 3C A view showing a fixing element 21 according to a first embodiment. The fixing element 21 shown is already in Figure 1 The fixing element 21 shown in FIG. In the embodiment shown, the internal thread 23 is formed by two diametrically opposed partial regions.

[0068] Figure 4A , Figure 4B and Figure 4C 2 shows a view of a fixing element 21 ′ according to a second embodiment. Figure 3A , Figure 3B and Figure 3C The embodiment shown in FIG. 2 differs in that the internal thread 23 ′ has a single pitch which extends once around 360° on the inner surface of the fastening element 21 ′.

[0069] Figure 5A , Figure 5B and Figure 5C A view of a fixing element 21a", 21b" according to a third embodiment is shown. Figure 5A , Figure 5B and Figure 5CThe fixing element 21a", 21b" shown in the figure is designed as a two-piece and comprises two halves, wherein the two halves can be connected to each other in a form-fitting manner by means of the shown latching connection. The internal thread 23" comprises a plurality of, here four, partial regions of a single pitch, wherein two partial regions are arranged on each half. In an embodiment not shown, the two halves can also have partial regions of more or less the same length or of different lengths, depending on the planned application.

[0070] Figure 6 The illustration shows a view of one half of a two-part fastening element 21 a ′″ according to a fourth embodiment.

[0071] Figure 6 The half shown is the same as previously shown in Figure 5A , Figure 5B and Figure 5C The embodiment shown in FIG. 1 differs in that the internal thread 23 ′″ comprises a partial region of a second single pitch, wherein the shown partial regions of the first single pitch and the second single pitch are identically designed and are arranged axially above one another on the inner surface of the fastening element.

[0072] Figure 7 A view of a fixing element 21"" according to a fifth embodiment is shown. Figure 7 The fixing element 21″″ shown in FIG. 1 is constructed as a single piece and, as already described, Figure 6 The fastening element 21 ″″ shown in FIG. 1 has an internal thread 23 ″″ which has a first single pitch and a second single pitch.

[0073] FIG. 3A to FIG. 7 Also shown are recesses 33, 33′, 33″, 33″′, 33″″ and, in each of the illustrated embodiments, a circumferential flange 35, 35′, 35″, 35″′, 35″″ arranged deep in the second bearing surface 25, 25′, 25″, 25″′, 25″″ and a contact surface 27b, 27b′, 27b″, 27b″′, 27b″″ arranged on the inner surface of the fixing element 21, 21′, 21a″, 21a″′, 21b″, 21″″.

[0074] Figure 8 A side view of the screw cable joint system 1 with the guide element 3 and the fixing element 21 is shown in the tightened state. Fig. 9 shows the line AA drawn through Figure 8 FIG. 1 is a partially broken away cross-sectional view of a cable screw joint system 1 shown in FIG.

[0075] The illustrated cable screw joint system 1 is arranged on a housing wall 11. The first end region 5 of the guide element 3 passes through the opening 9 in the housing wall 11 and rests with a sealing element 15 arranged on a first contact surface 13 on the side of the housing wall 11 facing the second end region 7 of the guide element 3.

[0076] exist Figure 8 and 8 In the embodiment, the fixing element 21 is completely screwed onto the guide element 3. Thus, the fixing element 21 fixes the guide element 3 in the housing wall 11 in the screwed state.

[0077] Fig. 9 FIG. 2 shows that the internal thread 23 on the inner surface of the fixing element 21 is screwed onto the external thread 17 of the guide element 3 .

[0078] It is also shown that the contact surfaces 27a, 27b are in mechanical contact with one another when the fastening element 21 is screwed onto the guide element 3. The contact surface 27b of the fastening element 21 is spaced apart (axially) from the internal thread 23 of the fastening element 21.

[0079] In the embodiment shown, a slot-shaped recess 33 is provided in the fixing element 21, extending parallel to the guide element 3 in the material of the fixing element 21. The recess 33 surrounds the contact surface 27b of the fixing element 21 in an annular manner and the formed collar 35 is arranged deep in the second bearing surface 25.

[0080] Furthermore, in the embodiment shown, spring connection elements 31a, 31b are arranged on the second end region 7 of the guide element 3. The guide element 3 can be used as a first component of a plug-in connection by means of the spring connection elements 31a, 31b, wherein the second component (not shown) can have corresponding connection elements in order to enable a simple plug-in connection of the two components.

[0081] Description of Reference Numerals

[0082] 1. Cable screw connection system

[0083] 3 Guiding elements

[0084] 5First end region

[0085] 7 Second end region

[0086] 9 Opening

[0087] 11 Shell wall

[0088] 13 first bearing surface

[0089] 15 Sealing element

[0090] 17 External thread

[0091] 19 through holes

[0092] 21, 21', 21a", 21a'', 21b", 21"" fixing element

[0093] 23, 23′, 23″, 23″′, 23″″ internal thread

[0094] 25, 25′, 25″, 25″′, 25″″ second support surface

[0095] 27a, 27b, 27b′, 27b″, 27b″′, 27b″″ contact surface

[0096] 29a, 29b protrusions

[0097] 31a, 31b Spring connection element

[0098] 33, 33′, 33″, 33″′, 33″″ recess

[0099] 35, 35′, 35″, 35″′, 35″″ flange

Claims

1. A cable spiral joint system for being arranged on a housing wall (11), comprising: a guide element (3) having an opening (19) for receiving a cable, a first bearing surface (13) for abutting against a first side of the housing wall (11), and a first end region (5) and an opposite second end region (7), wherein an external thread (17) is provided at least on the circumference of the first end region (5); and A fixing element (21, 21', 21a", 21a', 21b", 21""), the fixing element having a second bearing surface (25, 25', 25", 25"', 25"") for abutting against a second side surface of a housing wall (11) and an internal thread (23, 23', 23", 23"', 23"") on an inner surface, wherein the internal thread (23, 23', 23", 23"', 23"") is suitable for engaging with an external thread (17) on a guide element (3) in a tightened state, Features At least one first contact surface with a contact structure is arranged on the circumference of the guide element (3) adjacent to the external thread (17), and at least one second contact surface with a contact structure is arranged on the inner surface of the fixing element (21, 21', 21a", 21a"', 21b", 21""), wherein the first contact surface and the second contact surface are suitable for mechanically contacting each other in a tightened state, In the second bearing surface (25, 25', 25", 25"', 25"") of the fixing element (21, 21', 21a", 21a"', 21b", 21""), at least one slot-shaped recess (33, 33', 33", 33"', 33"") extending parallel to the guide element (3) in the screwed state is arranged in the material of the fixing element (21, 21', 21a", 21a"', 21b", 21""), the recess (33, 33', 33", 33"', 33"") at least partially annularly surrounding the second contact surface of the fixing element (21, 21', 21a", 21a"', 21b", 21"") 2. The cable spiral joint system according to claim 1, characterized in that: The first contact surface and the second contact surface have grooves as contact structures.

3. The cable spiral joint system according to claim 1, characterized in that: The internal thread (23, 23', 23") comprises a first single pitch or at least a partial region of the first single pitch.

4. The cable spiral joint system according to claim 3, characterized in that: The internal thread (23) comprises at least two diametrically opposed partial regions of a first single pitch separated by an interruption in the first single pitch.

5. The cable spiral joint system according to claim 3, characterized in that: The internal thread (23") comprises a plurality of local areas of equal or different lengths of the first single pitch separated by a plurality of interruptions in the first single pitch.

6. The cable spiral joint system according to any one of claims 3 to 5, characterized in that: The internal thread (23"', 23"") comprises a second single pitch or at least a partial region of the second single pitch, wherein the first single pitch and the partial region of the second single pitch are identically constructed and are arranged axially one above the other on the inner surface of the fixing element (21a"', 21"").

7. The cable spiral joint system according to claim 1, characterized in that: The external thread (17) and the internal thread (23, 23', 23", 23"', 23"") are each configured as a multi-thread thread.

8. The cable spiral joint system according to claim 1, characterized in that: The collar (35, 35', 35", 35"', 35"") produced by the recess is arranged deep in the second bearing surface (25, 25', 25", 25"', 25"").

9. The cable spiral joint system according to claim 1, characterized in that: At least two projections (29a, 29b) are arranged on the first supporting surface (13) in the direction of the first end region (5).

10. The cable spiral joint system according to claim 9, characterized in that: The projections (29a, 29b) are arranged radially opposite each other on the first supporting surface (13).

11. The cable spiral joint system according to claim 1, characterized in that: The fastening element (21a", 21a"', 21b") is designed in two parts and comprises two halves, wherein the halves are suitable for being connectable to one another in a form-fitting manner.

12. The cable spiral joint system according to claim 11, characterized in that: The halves are suitable for being connectable to one another by means of a snap-on connection.

13. The cable spiral joint system according to claim 1, characterized in that: The mutually meshing areas of the internal thread (23, 23', 23", 23"', 23"") and the external thread (17) are at least partially roughened and have an average roughness depth Rz in the range of 20 to 30.

14. The cable spiral joint system according to claim 13, characterized in that: The mutually meshing areas of the internal thread (23, 23', 23", 23"', 23"") and the external thread (17) have a roughness of class 36 according to VDI 3400.

15. The cable spiral joint system according to claim 1, characterized in that: A spring connection element (31a, 31b) is arranged on a second end region (7) of the guide element (3).

16. A guiding element for a cable spiral joint system according to any one of claims 1 to 15, the guiding element comprising: an opening (19) for accommodating a cable; a bearing surface (13) for bearing against one side of a housing wall (11); and a first end region (5) and an opposite second end region (7), wherein the external thread (17) is arranged at least on the circumference of the first end region (5), Features At least one first contact surface having a contact structure is arranged on the circumference of the guide element adjacent to the external thread (17).

17. A fixing element for a cable spiral joint system according to any one of claims 1 to 15, the fixing element comprising: A supporting surface (25, 25', 25", 25"', 25"" for abutting against one side of the housing wall (11); Internal threads (23, 23', 23", 23"', 23"" on the inner surface, wherein The internal thread (23, 23', 23", 23"', 23"") is suitable for engaging with the external thread (17) on the guide element (3) in a tightened state. It is characterized in that At least one second contact surface having a contact structure is arranged on the inner surface.

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