EP3680991A1 - Electrically shielded coupling assembly and its use - Google Patents

Abstract

The invention is concerned with improvements in the technical field of electrically shielded coupling arrangements. As an improvement, in particular an electrical entire coupling arrangement (1) is proposed, the coupling part (2) and counter coupling part (3) of which are secured by the latching connection (4) when the coupling arrangement (1) is closed, the coupling part (2) and the counter coupling part (3 ) are connected to one another under pressure when the latching connection (4) is engaged, so that they contact each other in a closed contact region (6) which runs around a longitudinal axis (5) of the coupling arrangement (1) (FIG. 1).

Description

The invention relates to an electrically shielded coupling arrangement with a coupling part and a counter-coupling part and to the use of such a coupling arrangement.

Electrically shielded coupling arrangements are known, for example, from cable entries, electrical and / or pluggable connections. In these, a coupling part is connected to a cable. The coupling part can then be connected to a mating coupling part for connecting the cable e.g. be connected to a contact plug. It is known to use such coupling arrangements e.g. secure by crimping.

Particularly when the coupling arrangements are used to connect cables which are connected to dynamically moving consumers, there is the problem that the connections which have been made can loosen. This can lead to the electrical shielding of the coupling arrangement being impaired, so that electrical interference fields can penetrate into the interior of the coupling arrangement.

To connect control cables for electric motors or other devices that are sensitive to high-frequency interference fields, reliable shielding of the connection points at which such coupling arrangements are used is particularly important. Vibrations, movements and / or vibrations can cause gaps or openings between the coupling parts of the previously known coupling arrangements, which can impair the effective shielding. Shielding against high-frequency interference fields can be strong even through the smallest gaps or openings be affected.

The object of the invention is therefore to provide an electrically shielded coupling arrangement which is particularly suitable for shielding against high-frequency interference fields.

To solve the problem, an electrically shielded coupling arrangement with the means and features of the independent claim directed to such a coupling arrangement is first proposed. In particular, an electrically shielded clutch arrangement is thus proposed to achieve the object, which comprises a coupling part and a counter-coupling part. The coupling part and the mating coupling part are connected to one another by a latching connection when the coupling arrangement is closed. When the snap-in connection is engaged, the coupling part and the counter-coupling part are connected to one another under pressure, so that they contact one another in a closed contact area around a longitudinal axis of the coupling arrangement under prestress. Characterized in that the coupling part and the counter-coupling part in the closed circumferential contact area under prestress when the snap connection is engaged, the entry of electromagnetic interference fields into the interior of the clutch arrangement can be effectively prevented. Due to the pretensioning, the connection between the coupling part and the counter-coupling part when the coupling arrangement is closed, which ultimately results in reliable shielding, can also be particularly tight against high-frequency interference fields. The locking arrangement secures the coupling arrangement against unintentional loosening. In this way, the electromagnetic shielding can also be maintained when the coupling arrangement is exposed to dynamic movements.

In a preferred embodiment of the coupling arrangement, the closed peripheral contact area is formed within the latching connection when the latching connection is engaged. In this way, the snap-in connection takes on a double function: on the one hand, it ensures that the coupling arrangement does not come loose unintentionally, on the other hand, it provides a particularly tight shield against interference fields.

In one embodiment of the coupling arrangement, a latching region of the latching connection is formed on the coupling part and a counter-latching region of the latching connection is formed on the counter-coupling part of the coupling arrangement. In this embodiment, the coupling part and the counter-coupling part make contact with one another via their latching area and counter-latching area in the contact area, which runs around the longitudinal axis of the clutch arrangement, when the latching connection is established and the clutch arrangement is closed. Thus, the closed peripheral contact area in this embodiment of the coupling arrangement is formed or arranged between the latching area of the coupling part and the counter-latching area of the counter-coupling part and thus within the latching connection and / or within a section of the clutch arrangement defined by the latching area of the coupling part and the counter-latching area of the counter-coupling part.

Thus, the clutch arrangement can ensure, through its latching area and counter-latching area, which come into contact under pretension when the latching connection is engaged and the clutch arrangement is closed, that the shielding contact between the coupling part and the counter-coupling part is maintained without interruption, even if the clutch arrangement is subjected to dynamic loading.

In an advantageous embodiment of the coupling arrangement, the latching area can have at least one closed circumferential latching projection and the counter-latching area can have at least one matching, circumferential latching undercut. In another embodiment of the coupling arrangement, the latching area can have a closed circumferential latching undercut and the counter-latching area can have a closed circumferential latching projection.

In both of the above-described embodiments, both the latching projection and the latching undercut are preferably uninterrupted in order to effectively prevent electromagnetic interference fields from passing through. This applies in particular to the embodiments of the coupling arrangement in which the contact area, which is closed around the longitudinal axis of the coupling arrangement, is arranged between the locking projection and the locking undercut when the locking connection is engaged.

In one embodiment of the coupling arrangement, a diameter of the latching area is smaller than a diameter of the counter-latching area on the counter-coupling part in order to generate the pressure. In this way it is ensured that the latching area and the counter-latching area lie against one another under pretension along the contact area which is closed around the longitudinal axis of the coupling arrangement. If the coupling part at least partially accommodates the counter-coupling part when the clutch arrangement is closed, the aforementioned diameter of the latching area can be an inner diameter of the latching area, while the aforementioned diameter of the counter-latching area is an outer diameter of the counter-latching area.

In the embodiment of the clutch arrangement in which the latching area is a latching projection and the counter-latching area is one Have latching undercut and the coupling part at least partially accommodates the mating coupling part, when the coupling arrangement is closed, it may be expedient to generate the pressure and the prestress acting on the mating coupling part in the coupling position of the coupling if an inner diameter of the latching projection is smaller than an outer diameter of the latching undercut is.

To generate the pressure, the diameter of the latching area and the diameter of the counter-latching area can differ from one another.

In another embodiment of the coupling arrangement, the coupling part can have a socket section and the counter-coupling part can have a plug-in section that fits under pressure into the socket section. A diameter, in particular an inner diameter, of the socket section can be smaller than a diameter, in particular an outer diameter, of the plug section. When the coupling arrangement is closed and the latching connection engages, the coupling part and the mating coupling part can then come into contact with one another via the bushing section and the plug-in section under prestress, so that, for example, the contact area between the plug-in section and the one that runs around the longitudinal axis of the coupling arrangement is closed Socket section is arranged.

When the coupling arrangement is closed, the coupling part with its socket section can thus be pushed over the plug-in section of the mating coupling part or the mating coupling part with its plug-in section can be inserted into the socket section and, due to the difference in diameter, can be connected to the mating coupling part under pretension. The diameters can differ from one another.

It is also possible for the mating coupling part to have a circumferential projection with which, when the snap-in connection is engaged, it presses against the coupling part, in particular on an inside of the coupling part, so that the contact area between the coupling part and the circumference, which is closed around the longitudinal axis of the coupling arrangement circumferential projection of the mating coupling part is formed. Here, too, a diameter of the circumferential projection can have a difference to a diameter, in particular inner diameter, of the coupling part.

At this point it should be mentioned that the latching connection can be designed in such a way that it acts axially. Furthermore, the coupling arrangement can comprise a screw connection. This screw connection can comprise a thread formed on the coupling part and a counter thread formed on the mating coupling part. In this way it is possible to secure the coupling arrangement in addition to the latching connection by means of a screw connection.

The previously mentioned latching area of the coupling part can be arranged or formed axially adjacent to the thread with respect to a longitudinal axis of the coupling part. The aforementioned counter-latching region of the counter-coupling part can be arranged or formed axially adjacent to the counter-thread with respect to a longitudinal axis of the counter-coupling part

As previously indicated, the locking area can surround the counter-locking area on the outside. In the case of a coupling arrangement which also enables a screw connection, through which the coupling part with the counter-coupling part when the coupling arrangement is closed is connected to one another, the thread on the coupling part can at least partially surround the mating thread on the mating coupling part on the outside when the coupling arrangement is closed.

In one embodiment of the coupling arrangement, the latching area has a flattened, pointed and / or sharp-edged or with a radius and / or rounded contact contour. In one embodiment of the coupling arrangement, the counter-latching area has a flattened, pointed and / or sharp-edged or with a radius and / or rounded contact contour.

In order to make it easier to snap the locking connection into place when connecting the coupling part to the counter-coupling part, the locking area and / or the counter-locking area can have a run-on slope. It is advantageous if both the latching area and the counter-latching area each have such a starting slope that is designed to match one another. The starting slope / the starting slopes can be sinusoidal in cross-section and / or have a radius.

The run-on bevels can be formed on the previously mentioned at least one latching projection and / or on the previously mentioned at least one latching undercut.

It is advantageous if the coupling part and the counter-coupling part of the coupling arrangement each consist at least partially of an electrically shielding, in particular metallic, material. It is also possible for the coupling part and the counter-coupling part to have a shielding and / or electrically conductive coating.

It is possible that the coupling part and the Counter coupling part are made of the same material. However, it has proven to be advantageous if the coupling part or counter-coupling part, on which the at least one locking projection is formed, consists of a somewhat softer material than the coupling part or counter-coupling part of the coupling arrangement, on which the at least one locking undercut is provided, into which the locking projection engages with the snap-in connection engaged. This facilitates the snap-in connection.

In one embodiment of the coupling arrangement it is provided that the coupling part is made of a crimpable metal alloy, while the counter-coupling part can consist of other metal. This pairing of materials is advantageous because the temperature coefficients of the materials used correspond sufficiently. Thus, even in the case of temperature fluctuations to which the coupling arrangement can be exposed, there is no fear of interruptions in the contact area which, when the snap-in connection is engaged, closed around the longitudinal axis of the coupling arrangement and through which interference fields could enter the interior of the coupling arrangement.

Of course, it is also possible that the mating coupling part is made of a crimpable metal alloy, while the coupling part consists of other metal. It is also conceivable that both the coupling part and the counter-coupling part consist of a crimpable metal alloy or that both are made of another metal.

The penetration of possibly also high-frequency interference fields into the interior of the closed coupling arrangement can be prevented in a particularly reliable manner if the thread and the latching area of the coupling part form a monolithic unit, in particular a homogeneous material. Furthermore, it would be favorable if the counter thread and the counter locking area of the counter coupling part form a monolithic unit, in particular a materially homogeneous unit. In this way, gaps, openings or similar passage points for interference fields between the thread and the locking area or between the counter thread and the counter locking area can be avoided.

In one embodiment of the coupling arrangement, at least the coupling part can be extrusion-coated at least on the outside, in particular with a plastic or synthetic resin. The resistance of the coupling part can be e.g. increase against corrosion.

In one embodiment of the coupling arrangement described in detail above, the coupling part and / or the counter-coupling part can be part of a housing and / or can be designed as a housing connection piece. It is also possible for the coupling arrangement to be designed as an electrical plug connector.

Finally, the above-mentioned object is also achieved by using a clutch arrangement according to one of the protection claims directed to such a clutch arrangement for the signal connection of drives, in particular for the signal connection of drives in dynamically moving axes. The drives mentioned above can be servo drives.

• Figur 1: Eine teilgeschnittene Halbansicht einer ersten Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, bei der ein Kupplungsteil und ein Gegenkupplungsteil der Kupplungsanordnung durch eine Rastverbindung und eine Schraubverbindung miteinander verbunden sind, wobei das Kupplungsteil einen geschlossen umlaufenden Rastvorsprung mit einer abgeflachten Kontaktkontur aufweist, mit der er eine Rasthinterschneidung, die an dem Gegenkupplungsteil ausgebildet ist, in ihrem Nutgrund kontaktiert;
• Figur 2: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, bei der nur eine Rastverbindung vorgesehen ist, durch die das Kupplungsteil und das Gegenkupplungsteil miteinander verbunden sind;
• Figur 3: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei hier der geschlossen umlaufende Kontaktbereich zwischen dem Kupplungsteil und dem Gegenkupplungsteil an einem umlaufenden Vorsprung ausgebildet ist, der die Rasthinterschneidung des Gegenkupplungsteils seitlich begrenzt;
• Figur 4: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, deren Gegenkupplungsteil eine in ihrem Nutgrund geschlitzte Rasthinterschneidung aufweist;
• Figur 5: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei das Kupplungsteil dieser Kupplungsanordnung einen Verschlussbügel aufweist, der bei geschlossener Kupplungsanordnung mit einem Gegenbefestigungsmittel verbunden ist;
• Figur 6: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei die Kupplungsanordnung hier als gepresste Rohrverbindung ausgebildet ist;
• Figur 7: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei hier das Kupplungsteil der Kupplungsanordnung einen umlaufenden Rastvorsprung aufweist, der eine spitze oder scharfkantige Kontaktkontur aufweist;
• Figur 8: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, die einen Rastvorsprung am Kupplungsteil der Kupplungsanordnung aufweist, welcher eine mit einem Radius versehene Kontaktkontur hat;
• Figur 9: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei hier das Kupplungsteil der Kupplungsanordnung zwei axial voneinander beanstandete, umlaufende Rastvorsprünge und das Gegenkupplungsteil korrespondierend dazu zwei axial voneinander beanstandete, umlaufende Rasthinterschneidungen, die auch als Rastnuten bezeichnet werden können, aufweisen;
• Figur 10: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei hier das Gegenkupplungsteil axial benachbart zu seiner Rasthinterschneidung eine Anlaufschräge oder Rampe aufweist, die im Querschnitt eine sinusförmige Kontur zeigt;
• Figur 11: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei das Gegenkupplungsteil der Kupplungsanordnung ein Anschlussstutzen eines Gehäuseteils ist, sowie
• Figur 12: eine teilgeschnittene Halbansicht einer weiteren Ausführungsform einer erfindungsgemäßen Kupplungsanordnung in Schließstellung, wobei hier das Kupplungsteil als eine außenseitig umspritzte Hülse ausgebildet ist, die auf ein Kabel gecrimpt wurde.

Different embodiments of the invention are explained in more detail with the aid of the following drawing. It should be expressly mentioned that the invention is not limited to the embodiments shown in the drawing. Further embodiments of the invention result from a combination of features of the invention that the Protection claims, the general description and the following description of the figures can be found. They show in a partly highly schematic representation:

• Figure 1 : A partially sectioned half view of a first embodiment of a coupling arrangement according to the invention in the closed position, in which a coupling part and a mating coupling part of the coupling arrangement are connected to one another by a snap connection and a screw connection, the coupling part having a closed circumferential locking projection with a flattened contact contour, with which it has an undercut , which is formed on the mating coupling part, contacted in its groove bottom;
• Figure 2 : A partially sectioned half-view of a further embodiment of a coupling arrangement according to the invention in the closed position, in which only one latching connection is provided, through which the coupling part and the counter-coupling part are connected to one another;
• Figure 3 a partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the closed peripheral contact area between the coupling part and the counter-coupling part being formed on a circumferential projection which laterally delimits the locking undercut of the counter-coupling part;
• Figure 4 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the counter-coupling part of which has a latching undercut slotted in its groove base;
• Figure 5 : a partially cut half view of another Embodiment of a coupling arrangement according to the invention in the closed position, the coupling part of this coupling arrangement having a locking bracket which is connected to a counter-fastening means when the coupling arrangement is closed;
• Figure 6 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the coupling arrangement being designed here as a pressed pipe connection;
• Figure 7 a partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the coupling part of the coupling arrangement here having a circumferential latching projection which has an acute or sharp-edged contact contour;
• Figure 8 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, which has a locking projection on the coupling part of the coupling arrangement, which has a contact contour provided with a radius;
• Figure 9 a partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, here the coupling part of the coupling arrangement having two circumferential locking projections axially spaced apart and the mating coupling part correspondingly having two circumferential locking undercuts spaced axially apart, which can also be referred to as locking grooves;
• Figure 10 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the counter-coupling part being axial here adjacent to its locking undercut has a run-on slope or ramp which shows a sinusoidal contour in cross section;
• Figure 11 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the counter-coupling part of the coupling arrangement being a connecting piece of a housing part, and
• Figure 12 : A partially sectioned half view of a further embodiment of a coupling arrangement according to the invention in the closed position, the coupling part here being designed as an outside-molded sleeve which was crimped onto a cable.

In the following description of the figures, the function of the same elements is given the same reference numerals even in the case of a different design.

All of the figures show a clutch arrangement designated as a whole by 1. The coupling arrangements 1 are each electrically shielded and each have a coupling part 2 and a mating coupling part 3 designed to match it.

When the coupling arrangement 1 is closed, the coupling part 2 and the counter-coupling part 3 are connected to one another by a latching connection 4, as a result of which the coupling arrangement 1 is secured against unintentional release. All of the coupling arrangements 1 shown have in common that the coupling part 2 and the counter-coupling part 3 are connected to one another under pressure in such a way that the coupling part 2 and the counter-coupling part 3 contact one another in a closed contact area 6 which runs around a longitudinal axis 5 of the coupling arrangement 1 when the Snap connection 4 is engaged. This has the effect that the coupling arrangement 1 and its electrical shielding particularly effectively prevent the undesired entry of electromagnetic interference fields into the interior of the coupling arrangement 1.

In all the embodiments shown, a locking area 7 is formed on the respective coupling part 2 and a counter-locking area 8 of the locking connection 4 is formed on the respective counter-coupling part 3. In some of the illustrated exemplary embodiments of a clutch arrangement 1, in particular in the exemplary embodiments according to FIGS Figures 1, 2, 4 , 5, 6 , 10, 11 and 12 , the closed circumferential contact area 6 with the snap-in connection 4 is arranged within the snap-in connection 4 between the latching area 7 and the counter-locking area 8 and thus within a section 9 which is defined by the locking area 7 of the coupling part 2 and by the counter-locking area 8 of the counter-coupling part 3. The pressure between the coupling part 2 and the counter-coupling part 3 is achieved here due to the corresponding dimensions of the locking area 7 on the one hand and the counter-locking area 8 on the other.

In all of the exemplary embodiments of the clutch arrangement 1, the latching area 8 each has at least one closed, uninterrupted latching projection 10. Appropriately, the counter-latching area 8 is provided in almost all exemplary embodiments of the clutch arrangement 1 with at least one closed, uninterrupted latching undercut 11. Only the in Figure 4 Coupling arrangement 1 shown has a locking undercut 11, the groove base of which is slotted.

In the embodiment of the clutch arrangement 1 according to Figure 9 the coupling part 2 has a total of two locking projections 10, while the counter-coupling part 3 suitably equipped with a total of two locking undercuts 11.

In order to generate the pressure, an inner diameter of the locking areas 7, which is predetermined by the locking projections 10, is shown in Figures 1, 2, 4 , 5, 6 , 10, 11 and 12 smaller than an outer diameter, which is predetermined by the locking undercuts 11 in the counter-locking area 8 of the counter-coupling part 3. In this way it is ensured that the coupling parts 2 and the counter-coupling part 3 contact each other under pretension when the latching connection 4 is engaged.

All figures show that the latching connection shown acts axially in FIG. 4. The in the Figures 1, 3, 4 , 7, 8 and 10th Coupling arrangements shown also each have a screw connection 12 in addition to their latching connection 4. Each screw connection 12 comprises a thread 13 on the coupling part 2 and a matching mating thread 14 on the mating coupling part 3 of the coupling arrangement 1.

In all embodiments of the coupling arrangement 1, which have a screw connection 12, the locking area 7 is formed axially adjacent to the thread 13 on the coupling part 2, while the counter-locking area 8 is arranged axially adjacent to the counter thread 13 on the counter-coupling part 3. In all of the exemplary embodiments shown of the coupling arrangement 1, which have a screw connection 12, the latching area 7 and the thread 13 on the coupling part 2, as well as the mating thread 14 and the respective mating latching area 8, are connected to one another in a rotationally fixed manner.

All figures show that the locking area 7 on the coupling part 2 at least partially surrounds the counter-locking area 8 on the counter-coupling part 3 when the clutch arrangement 1 is closed. This also applies to the thread 13, which is the Counter thread 14 at least partially surrounds the outside when the clutch arrangement 1 is closed. For example, the counter-coupling part 3 is arranged at least in sections within the coupling part 2 when the clutch arrangement 1 is closed.

At the in Figure 1 Embodiment shown of a clutch assembly 1, the locking projection 10 of the locking area 7 has a flattened contact contour with which it rests in the groove base of the groove-shaped locking undercut 11 on the mating coupling part 3.

At the in Figure 5 Embodiment shown of a clutch assembly 1, the clutch assembly 1 is secured not only by the locking connection 4 but also by a closure 17. This closure 17 has a securing bracket 18. The securing bracket 18 is connected to the coupling part 2 and, in the closed position, engages in an undercut 19 formed on the mating coupling part 3.

The Figures 2 , 5 , 6 , 11 and 12 furthermore show that the contact area 6, which is closed around the longitudinal axis 5 of the coupling arrangement 1 and on which the coupling part 2 and the counter-coupling part 3 touch one another under pretension, is formed in this coupling arrangement 1 in an area axially adjacent to the latching connection 4. This is because the coupling part 2 in the exemplary embodiments of a coupling arrangement 1 shown in these figures is pressed onto a plug-in section 20 of the counter-coupling part 3, which is arranged axially adjacent to the counter-latching area 8, counter-coupling part 3. To generate the pressure between the coupling part 2 and the counter-coupling part 3, an outer diameter of the plug-in section 20 is somewhat larger than an inner diameter of the coupling part 2 in one Socket section 21 with which the coupling part 2 contacts the plug-in section 20 of the mating coupling part 3 in a pre-stressed manner.

In the in the Figures 3 , 7 , 8th and 9 Coupling arrangements 1 shown, the closed circumferential contact area 6 is arranged between an inside of the coupling part 2 and an outside of a circumferential projection 22 which is formed on the mating coupling part 3. The circumferential projection 22 of the mating coupling part 3 can also be referred to as a shoulder and is uninterrupted, so that it has no penetrations for electromagnetic interference fields.

At the in Figure 7 The exemplary embodiment of a coupling arrangement 1 shown is provided with a locking projection 10 of the locking area 7 with a sharp-edged or pointed contour.

At the in Figure 8 The exemplary embodiment of a coupling arrangement 1 shown has the latching projection 10 of the latching area 7 with a contour which is provided with a radius and is therefore rounded.

All exemplary embodiments of a coupling arrangement 1, which are shown in the figures, show run-on bevels 15 on the latching projections 10 and on the latching undercuts 11, which facilitate the latching of the latching connection 4.

At the in Figure 10 In the exemplary embodiment of a coupling arrangement 1 shown, the mating coupling part 3 has a run-up slope 15 adjacent to its latching undercut 11, which is sinusoidal in cross section.

In all coupling arrangements 1, the coupling part 2 and the counter-coupling part 3 have a shielding and thus electrically conductive coating or consist at least partially of an electrically shielding and / or electrically conductive material.

The coupling parts 2 shown in the figures, on which the locking projections 10 are formed, can be made of a softer material than the counter-coupling parts 3.

At the in Figure 12 Exemplary embodiment of a coupling arrangement 1 shown, the coupling part 2 consists of a crimpable metal alloy, while the counter-coupling part 3 can be made of other metal. Figure 12 also clarifies that the coupling part 2 is crimped and thereby connected to a cable 16. The coupling part 2 of the in Figure 12 Coupling arrangement 1 shown can therefore also be referred to as a crimp sleeve. Furthermore, in this exemplary embodiment of a coupling arrangement 1, the coupling part 2 is extrusion-coated with a plastic.

In all of the coupling arrangements 1 with screw connection 12 shown, the thread 13 and the latching area 7 of the coupling part 2 form a materially homogeneous, monolithic unit, and are therefore connected to one another in one piece.

Likewise, the counter thread 14 and the counter locking area 8 also form a materially homogeneous, monolithic unit in all coupling arrangements 1 which have a screw connection 12, and are therefore connected to one another in one piece.

At the in Figure 11 Embodiment shown of a clutch assembly 1, the counter-coupling part 3 of the clutch assembly 1 is designed as a housing connector and thus part of a housing.

The coupling arrangements 1 shown in the figures are particularly suitable for connecting signals from drives, in particular servo drives, in or on dynamically moving axes, or in any type of fault-sensitive application.

The invention is concerned with improvements in the technical field of electrically shielded coupling arrangements. As an improvement, in particular an electrically shielded coupling arrangement 1 is proposed, the coupling part 2 and mating coupling part 3 of which are secured by the latching connection 4 when the coupling arrangement 1 is closed, the coupling part 2 and the mating coupling part 3 being connected to one another under pressure when the latching connection 4 is engaged, so that they make contact with one another in a closed contact region 6 running around a longitudinal axis 5 of the coupling arrangement 1 under prestress.

Reference list

1

Coupling arrangement

2nd

Coupling part

3rd

Counter coupling part

4th

Snap connection

5

Longitudinal axis

6

Contact area

7

Rest area

8th

Counter-latching area

9

Section of 2

10th

Locking projection

11

Locking undercut

12th

Screw connection

13

thread

14

Mating thread

15

Ramp

16

electric wire

17th

Clasp

18th

safety catch

19th

Undercut

20

Mating section on 3rd

21

Socket section on 2nd

22

all-round lead on 3

Claims (18)

Electrically shielded coupling arrangement (1), the coupling arrangement (1) comprising a coupling part (2) and a counter-coupling part (3), which are connected to one another by a latching connection (4) when the coupling arrangement (1) is closed, the coupling part (2) and the counter-coupling part (3) is pressed together when the snap-in connection (4) is engaged, so that they make contact in a closed contact area (6) that runs around a longitudinal axis (5) of the coupling arrangement (1). Coupling arrangement (1) according to claim 1, wherein the closed circumferential contact area (6) is formed within the latching connection (4) when the latching connection (4) is engaged and / or wherein the coupling part (2) has a latching area (7) and the counter-coupling part (3) has a counter-latching area (8), in particular the closed peripheral contact area (6) being arranged between the latching area (7) and the counter-latching area (8) of the coupling arrangement (1) when the latching connection (4) is engaged. Coupling arrangement (1) according to claim 1 or 2, wherein the coupling part (2) at least one closed peripheral, preferably uninterrupted, locking projection (10) and / or the mating coupling part (3) at least one, closed peripheral to the at least one locking projection (10) , preferably uninterrupted, locking undercut (11). Coupling arrangement (1) according to claim 2 or 3, wherein a diameter, in particular an inner diameter, of the latching area (7), in particular of the latching projection (10), is smaller than a diameter, in particular an outer diameter, of the counter-latching region (8), in particular the latching undercut (11). Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part (2) has a bushing section (21) and the counter-coupling part (3) has a plug-in section (20) that fits under pressure into the bushing section (21), and / or that the counter-coupling part ( 3) has a circumferential projection (22) with which the mating coupling part (3) rests under pressure on the coupling part (2) when the latching connection (4) is engaged, so that the contact area (6) between the coupling part (2) and the circumferential projection (22) is formed. Coupling arrangement (1) according to one of the preceding claims, wherein the latching connection (4) acts axially and / or wherein the coupling arrangement (1) comprises a screw connection (12) through which the coupling part (2) and the counter-coupling part (3) when the coupling arrangement is closed (1) are connected to one another, the screw connection (12) comprising a thread (13) on the coupling part (2) and a matching mating thread (14) on the mating coupling part (3). Coupling arrangement (1) according to one of Claims 2 to 6, the latching region (7), in particular the at least one latching projection (10), being formed axially adjacent to the thread (13) on the coupling part (2), and / or the counter-latching region ( 8), in particular the at least one locking undercut (11), is formed axially adjacent to the counter thread (14). Coupling arrangement (1) according to claim 7, wherein the thread (13) and the latching area (7) of the coupling part (2) are non-rotatably connected to one another and / or in the case of the mating thread (14) and the counter-latching area (8) of the mating coupling part (3) are interconnected. Coupling arrangement (1) according to one of the preceding claims, wherein the latching area (7) surrounds the counter-latching area (8) and / or one or the thread (13) or the counter thread (14) when the clutch arrangement (1) is closed. Coupling arrangement (1) according to one of claims 2 to 9, wherein the latching area (7) and / or the counter-latching area (8), in particular the at least one latching projection (10) and / or the at least one latching undercut (11), a flattened one has / have pointed and / or sharp-edged or with a radius and / or rounded contact contour. Coupling arrangement (1) according to one of claims 2 to 10, wherein the latching area (7) and / or the counter-latching area (8) has a run-on slope (15), in particular which is sinusoidal in cross section and / or has a radius. Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part (2) and / or the counter-coupling part (3) have a shielding and / or electrically conductive coating and / or at least partially consist of an electrically shielding and / or electrically conductive material. Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part (2) or mating coupling part (3), on which at least one latching projection (10) is formed, consists of a softer material than the mating coupling part (3) or coupling part (2), on which at least one locking undercut (11) is formed. Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part (2) and / or the counter-coupling part (3) is made of a crimpable metal alloy and / or wherein the counter-coupling part (3) and / or the coupling part (2) made of other metal consists. Coupling arrangement (1) according to one of claims 6 to 14, wherein the thread (13) and the latching area (7) of the coupling part (2) form a, in particular materially homogeneous, monolithic unit, and / or wherein the counter thread (14) and the Counter-latching area (8) of the counter-coupling part (3) form a monolithic unit, in particular a homogeneous material. Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part is extrusion-coated at least on the outside, in particular with a plastic. Coupling arrangement (1) according to one of the preceding claims, wherein the coupling part (2) and / or the counter-coupling part (3) is / are part of a housing and / or are designed as a housing connector, or that the coupling arrangement (1) is designed as an electrical connector . Use of a coupling arrangement (1) according to one of the preceding claims for the signal connection of drives, in particular for the signal connection of drives in or on dynamically moving axes and / or in any type of fault-sensitive application.

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