EP3849030A1 - Half-shell clamping sleeve - Google Patents

Abstract

Half-shell clamping sleeve (100) for electrically shielding a cable in a circular connector (200), having a hollow, metallic half-cylinder (110); a groove (120) being formed in the longitudinal direction of the half cylinder (110) on a first end face of the half cylinder (110); a second, opposite end face of the half-cylinder (110) being designed as a clamping sleeve (130); and wherein the half-shell clamping sleeve (100) is designed in such a way that, in an assembled state in a circular connector (200), the first end face of the half-cylinder (110) can be aligned in a form-fitting manner on a connection element (210) of the circular connector (200), a connection element ( 210) connected cable can be mechanically fixed by means of the clamping sleeve (130) and the clamping sleeve (130) can be electrically connected to a braided shield of the cable.

Description

The invention relates to a half-shell clamping sleeve, a round plug connector and a plug-in system with a round plug connector and a complementary plug-in element.

The invention is in the field of connector technology, in particular in the field of circular connectors for a push-pull connector system. In a circular connector for a connector system, the circular connector often has a shielding element for that part of the circular connector in which, due to the contacting of cable cores of a cable with a connection element of the circular connector, no braided shield of the cable is arranged over the cable cores. Particularly in the case of circular connectors that are used for applications in high-frequency technology, complete electrical shielding of all cable areas, the cable contact areas and the plug-in areas are an important prerequisite for enabling trouble-free operation.

In the configuration of conventional round plug connectors, the round plug connector for the area to be shielded often has a hollow cylindrical shield element which is firmly connected to a connection element of the round plug connector and which is arranged around the cable area to be shielded. Reliable contact between the shielding braid of the cable and the shielding element of the circular connector is often a problem, since the shielding element is usually a rigid metal cylinder and contact with the shielding braid of the cable can be unintentionally released by moving the cable in the area of the circular connector. One possibility for more reliable shielding is a configuration in which two metallic half-shells are used for electrical shielding are each aligned on the connection element of the circular connector and arranged around the cable and, in addition, a metallic clamping sleeve is aligned on the side of the metallic half-shells that is opposite the connection element. The braided shield of the cable is clamped in by the metallic half-shells and the clamping sleeve. By screwing a round connector housing with a closure cap, the two aligned half-shells and the clamping sleeve are fixed in their arrangement. In addition, the clamping sleeve closes when it is screwed around an insulation of the cable and forms a fixed connection between the circular connector and the cable.

An assembly of such a circular connector with a cable turns out to be difficult, since both the two half-shells on the connection element and the clamping sleeve must be aligned on the half-shells and, in addition, the braided shield must not slip out between the half-shells and the clamping sleeve during assembly ensure electrical shielding.

It is therefore an object of the present invention to provide a simplified shielding element and a simplified configuration and assembly of the electrical shielding of a circular connector, which enable reliable electrical shielding of a contact between a circular connector and a cable.

A first aspect for achieving the object relates to a half-shell clamping sleeve for electrically shielding a cable in a circular connector, having a hollow, metallic half-cylinder; wherein a groove is formed in the longitudinal axis direction of the half cylinder on a first end face of the half cylinder; a second, opposite end face of the half-cylinder being designed as a clamping sleeve; and wherein the half-shell clamping sleeve is designed in such a way that, in a mounted state in a circular connector, the first end face of the half-cylinder can be positively aligned on a connection element of the circular connector, a cable connected to the connection element can be mechanically fixed by means of the clamping sleeve and the clamping sleeve with a braided shield of the Cable is electrically connectable.

In the context of the present invention, an assembled state is understood to mean a state in which a round plug connector, which has at least one half-shell clamping sleeve according to the invention, is electrically connected to a cable. In this case, at least one half-shell clamping sleeve is arranged in the circular connector, which is aligned with a positive fit on a connection element of the circular connector. The clamping sleeve of the half-shell clamping sleeve fixes the cable mechanically and is electrically connected to the braided shield of the cable.

The half-shell clamping sleeve according to the invention provided for the electrical shielding of a cable replaces one of the half-shells and one half of the clamping sleeve, which are arranged in a conventional round plug connector for shielding a cable, as described above. Two half-shell clamping sleeves thus replace the conventional two half-shells and the clamping sleeve, which are necessary for the configuration of a shielded circular connector.

Electrical shielding is understood to mean a closed sheath made of an electrical conductor, for example a wire mesh and / or a metal cylinder, around an object, which is also referred to as a Faraday cage. This electrical shielding creates a field-free area within the closed envelope even in the case of external static electrical fields as a result of influence. A closed sheath made of an electrical conductor also shields high-frequency alternating fields because eddy currents are induced on the surface of the shield, which counteract the external field according to Lenz's rule. In this case, however, the shielding effect is not ideal, but is characterized by finite shielding attenuation and penetration depths into the shield. Shields made of non-ferromagnetic metal, because of their finite conductivity, shield high-frequency alternating fields when the metal layer is significantly stronger and / or thicker than the penetration depth of the induced currents. The shielding effect is not tied to a specific shape. Static or slowly varying magnetic fields, such as the earth's magnetic field, are protected by an electrical shield not shielded.

The cable is to be understood as a single-core or multi-core composite of cable cores and / or individual lines sheathed with insulating materials, which is used for the transmission of energy and / or information. Different plastics are usually used as insulating materials, which surround the wires used as conductors and insulate them from one another. Electrical conductors usually consist of copper, more rarely aluminum or suitable metal alloys. Viewed three-dimensionally, the cable follows a mostly cylindrical or similar geometry and can contain additional layers of insulating material or metallic foils and / or braided shields in the overall structure for the purpose of electromagnetic shielding and / or mechanical protection.

The circular connector can be designed as a male or a female connector. In particular, the plug connector can be designed as a plug socket or a plug socket. The round plug connector can be connected in a plug-in area with a complementary plug-in element and / or a complementary plug connector, in particular a female or male round plug connector. In the plugged-in state, the plug-in area of the circular plug-in connector overlaps with the plug-in area of the complementary plug-in element and / or complementary plug-in connector in a common plug-in area. For example, if the circular connector is a male circular connector, it can be connected to a complementary female connector. For example, if the circular connector is a female circular connector, it can be connected to a complementary male connector.

In the context of the present invention, an inserted state is understood to mean a state in which the plug connector is electrically and mechanically connected to a complementary plug-in element.

For the structural components, the term “connecting” means, in particular, a mechanical connection and / or joining together, for the electrical components Components in particular additionally an electrical connection and / or contact.

In the inserted state, the circular connector and the complementary plug-in element have a circular plug-in connection. A round plug-in connection is to be understood as meaning that the common plug-in area has a cylindrical shape and / or an approximately cylindrical shape. The plug-in surfaces of the circular connector and the complementary circular connector, i.e. the two surfaces that are initially directly opposite and / or superimposed during the insertion process, each represent a circular surface orthogonal to the insertion direction and the complementary circular connector. The central axis and / or longitudinal axis of the circular connector and of the complementary plug element runs parallel to the insertion direction through the center point of the two circular surfaces. The plug-in area is arranged at the plug-in end of the circular connector and represents a virtual area.

The hollow metallic half-cylinder of the half-shell clamping sleeve is provided as electrical shielding of the cable area, which is not surrounded by the braided shield of the cable when the circular connector is installed. In the assembled state, two hollow metallic half cylinders are arranged in such a way that they form a hollow cylinder and thus a closed shield around the cable. The wall thickness of the half-cylinder, that is to say the area between the inner surface and the outer surface of the half-cylinder, can at least be designed in such a way that it exceeds the penetration depth of the induced currents to be expected. The wall thickness to be used can therefore depend on the frequency range of the radiating electromagnetic components that are located in the vicinity of the shield. The wall thickness is preferably designed to enable shielding from high-frequency electromagnetic waves. High frequency is understood to mean a frequency range from 3 MHz to 30 THz, and in particular the shortwave range from 3 MHz to 30 MHz, the VHF (Ultra Short Wave) and / or VHF (Very High Frequency) range from 30 MHz to 300 MHz, the UHF (Ultra High Frequency) range from 300 MHz to 3 GHz, the SHF (Super High Frequency) range from 3 GHz to 30 Ghz, the EHF (Extremely High Frequency) for 300 GHz to 3 THz and the THF (Tremendously High Frequency) range for 3 THz to 30 THz.

Two long sides of the half cylinder are arranged parallel to a virtual longitudinal axis of the half cylinder. The virtual longitudinal axis of the half cylinder is to be understood as the cylinder axis of a solid cylinder composed of two half cylinders. In this case, the longitudinal axis of the half-cylinder is designed to overlap the longitudinal axis of the circular connector in the assembled state and / or to be arranged parallel to it or approximately parallel to it. The two long sides each form a surface between an outer surface and an inner surface of the half-cylinder. These surfaces of the long sides can be designed to align two half cylinders with one another in a form-fitting manner and to form a hollow full cylinder for electrical shielding. The two surfaces on the longitudinal sides can have a groove and / or a complementary bulge along the longitudinal axis and / or in the radial direction and / or in the circumferential direction in order to be designed to be able to engage with a complementary longitudinal side of a second half-cylinder.

The first and second end faces of the semicylinder can be designed as a semicircular and / or approximately semicircular and / or an approximately elliptical side. The first and second end faces each form a surface between the semicircular outer surface and the semicircular inner surface of the semicylinder. The end faces delimit the half cylinder in the direction of the longitudinal axis

The surface of the first end face is designed so that, in the assembled state, it can be aligned in a form-fitting manner on the connection element of the circular connector. The surface of the first end face of the half-cylinder is aligned with a side opposite the insertion surface of the connection element. The plug-in surface of the connection element opposite side be designed as a solid cylinder made of an electrically insulating material, such as ceramic and / or polyethylene. This full cylinder of the connection element can have a groove along the outer radius into which the first end face of the half cylinder can be engaged and positively aligned in the assembled state. The surface of the first end face and the groove on the outer radius of the connection element can be designed as a smooth cross-sectional surface and / or form bulges in and / or against the longitudinal axis.

The first end face of the half cylinder also has a groove in the direction of the longitudinal axis of the half cylinder. The longitudinal axis direction of the half cylinder is a direction parallel to the longitudinal axis, that is to say the cylinder axis, of a virtual full cylinder of the half cylinder. The side walls of the groove, that is to say the walls between the outer surface and the inner surface and the direction of the longitudinal axis of the half-cylinder, can preferably be arranged at least partially approximately parallel to the longitudinal axis. Alternatively, the side walls can also assume a shape that tapers in the direction of the longitudinal axis. The groove can be designed to be round and / or approximately round and / or approximately parallel to a circumferential direction of the first end face at the groove base. The groove is shaped in such a way that it is designed to be complementary to a bulge with which it is designed to be able to engage in the assembled state.

The groove can also have a shape in which a complementary bulge in the assembled state prevents the half-cylinder from being displaced in the direction of the longitudinal axis. The fuse can be designed by a bulge of the groove in the circumferential direction of the half cylinder. In the assembled state, the complementary bulge engages in the bulge of the groove.

The groove can also be widened at the end face in relation to the complementary bulge in the circumferential direction in order to enable a simplified introduction of the bulge during the assembly of the half-shell clamping sleeve.

The second end face of the half cylinder is arranged opposite the first end face of the half cylinder and, when the circular connector is installed, forms a transverse surface of the circular connector in the direction of the longitudinal axis, the transverse surface being formed at the end of the circular connector which is opposite the insertion surface of the circular connector.

The second end face of the half cylinder is designed as a clamping sleeve. A clamping sleeve is to be understood as an area of the half-cylinder which, in the assembled state of the circular connector, is elastically movable radially towards the longitudinal axis and on which the half-cylinder has a narrowed inner circumference for clamping an outer circumference of the cable. The area of the clamping sleeve extends at least partially in the circumferential direction and partially in the direction of the longitudinal axis away from the second end face of the half cylinder in the direction of the first end face of the half cylinder. The clamping sleeve can be moved and / or narrowed to different degrees in the radial direction along the longitudinal axis. The clamping sleeve can, for example, be movable maximally in the radial direction on the front side and be minimally movable and / or not movable at all on the side of the clamping sleeve that is closest to the first front side. Due to the narrowing of the inner radius on the second end face of the half-cylinder up to the outer radius of the cable, the half-cylinder is firmly connected to the cable in the assembled state and / or mechanically fixed against relative movements of the two components in the longitudinal axis direction, in the radial direction and / or in the circumferential direction.

The clamping sleeve of the half-shell clamping sleeve is designed in such a way that, in the assembled state, the braided shield of the cable can be connected mechanically and electrically. During assembly, the insulating outer sheath of the cable is removed for an area that is arranged under the half cylinder in the assembled state. As a result, the braided shield is freely accessible to the outside in this area of the cable. During assembly, the braided shield can also be folded over against the insertion direction and placed over the insulating outer sheath of the cable. The half cylinder and / or the clamping sleeve of the half-shell clamping sleeve are with the freely accessible braided shield and / or with the folded braided shield connectable. In this case, the clamping sleeve can preferably be electrically connected to the braided shield and particularly preferably a partial area of the clamping sleeve adjacent to the second end face of the half-cylinder. The partial area of the clamping sleeve configured for connection here preferably takes up about half and / or 0.7 mm of the clamping sleeve and more preferably about a third and / or 0.5 mm of the clamping sleeve in the direction of the longitudinal axis.

The inside of the half cylinder can have partial areas with different inner radii. The sub-areas with a smaller inner radius can be connectable to the outer radius of the cable and / or braided shield in the assembled state and be designed as additional electrical contact areas and / or as spacers and / or for stiffening the half-cylinder. The inner radius of these partial areas is preferably 2 mm smaller and particularly preferably 1 mm smaller than the inner radius of the other partial areas of the inside.

The outside of the half cylinder can have partial areas with different outer radii. The sub-areas with a larger outer radius can be mechanically connectable to a circular connector housing in the assembled state and designed as an additional stop in the longitudinal direction of the circular connector and / or as a spacer to the circular connector housing and / or to stiffen the half-cylinder. The outer radius of these subregions is preferably 2 mm larger and particularly preferably 1 mm larger than the outer radius of the other subregions of the outside.

The longitudinal axis extension of the half-cylinder from the first end face to the second end face along the longitudinal axis is designed to be alignable between the connection element and a closure cap of the circular connector in a mounted state in a form-fitting manner. The radial extension of the inside of the half-cylinder can be designed to be alignable in an assembled state with a form-fit and / or approximately a form-fit on the outside of the (stripped) cable. The radial extension of the outside of the half cylinder can be designed to be positively and / or approximately in an assembled state to be positively aligned on the inside of the circular connector housing.

In a preferred embodiment of the half-shell clamping sleeve, the half-shell clamping sleeve is designed in one piece. The clamping sleeve of the half-shell clamping sleeve can therefore not be separated from the half-cylinder of the half-shell clamping sleeve. When assembling the circular connector, the half-shell clamping sleeve can therefore only be aligned with the connection element of the circular connector on the first end face and can be fixed with the closure cap of the circular connector on the second end face. There is no need to align the half-cylinder and the clamping sleeve as is the case with the assembly of a conventional shielding of the circular connector.

In a further preferred embodiment of the half-shell clamping sleeve, the clamping sleeve has at least one clamping arm and the part of the at least one clamping arm which forms the second end face of the half-cylinder is radially elastically movable in the direction of the longitudinal axis of the half-cylinder.

The at least one clamping arm can be spaced apart in the circumferential direction from an adjacent clamping arm and can have two longitudinal sides. Long sides of the at least one clamping arm can be formed at least partially parallel to the long sides of the half cylinder. The longitudinal sides of the at least one clamping arm each have a minimum distance in the circumferential direction from a further clamping arm of the half-shell clamping sleeve and / or from a second half-shell clamping sleeve. The minimum distance in the circumferential direction can preferably be 1 mm and particularly preferably 0.5 mm. The minimum distance in the circumferential direction can be designed in such a way that, in the assembled state of the circular connector on the second end face of the half-cylinder, the at least one clamping arm is not and / or almost not spaced from another clamping arm of the half-shell clamping sleeve and / or from a second half-shell clamping sleeve is alignable.

The partial area on the inside of the clamping sleeve that can be connected to the braided shield of the cable can have at least one fixing element. In the assembled state of the circular connector, the at least one fixing element is designed to fixably connect the half-shell clamping sleeve and the cable and thus prevent a relative movement of the half-shell clamping sleeve and / or a relative movement of the circular connector to the cable. The at least one fixing element can be designed as a latching hook which can be engaged in the braided shield of the cable. The connectable sub-area preferably has at least two latching hooks, particularly preferably at least three and most preferably at least five latching hooks, on the inside of the clamping sleeve.

An outside of the clamping sleeve in the radial direction can have at least one groove and / or at least one bulge into which an inside of the closure cap of the circular connector can be engaged and / or positively aligned in the assembled state.

In a further preferred embodiment of the half-shell clamping sleeve, the clamping sleeve has at least two clamping arms and the at least two clamping arms are spaced apart from one another.

In a particularly preferred embodiment, the clamping sleeve has at least three clamping arms and in a most preferred embodiment the clamping sleeve has at least four clamping arms.

In a further preferred embodiment of the half-shell clamping sleeve, the wall thickness of the half-shell clamping sleeve is in a range from approximately 0.1 mm to approximately 1 mm. The wall thickness of the half-shell clamping sleeve is designed to be greater than a penetration depth of induced currents from external, high-frequency electromagnetic alternating fields.

Another aspect of the solution to the problem relates to a circular connector for connecting to a complementary plug-in element, having at least one half-shell clamping sleeve according to one of the preceding embodiments; a connection element for connecting to a complementary connection element of the complementary plug-in element; a circular connector housing and a sealing cap for fixing the cable; wherein the connection element is arranged within the circular connector housing and is firmly connected to the circular connector housing; wherein the at least one half-shell clamping sleeve is arranged within the circular connector housing; and wherein the at least one half-shell clamping sleeve is fixed between the connection element and the closure cap.

A connection element is arranged as a sub-element of the circular connector from the plug-in surface, or also the plug-in side of the circular plug connector, counter to the plug-in direction, that is to say from the plug-in surface along the longitudinal axis of the circular plug connector. The connection element can have an insertion area, a contact element holding area and a cable contact area along the longitudinal axis.

The plug-in area of the connection element can be located within the plug-in area of the circular connector and extend approximately concentrically around the longitudinal axis. For a male circular connector, the connection element can form a hollow cylinder around the longitudinal axis in the plug-in area. This hollow cylinder is designed to receive a female plug-in area of a complementary connection element of the complementary plug-in element, which can be designed as a solid cylinder. For a male circular connector, however, there does not have to be a hollow cylinder in the plug-in area of the connection element. For a female circular connector, the connection element can be designed as a solid cylinder up to a maximum radial extension with respect to the longitudinal axis in the plug-in area. This solid cylinder is designed to be inserted into a male plug-in area of a complementary connection element of the complementary plug-in element, which can be designed as a hollow cylinder. Both the hollow cylinder of a male circular connector and the full cylinder of the female circular connector are made of an electrically insulating material. In the case of a male circular connector, at least one metallic, electrically conductive contact element protrudes for electrical contacting and / or at least one contact pin in the insertion direction from the contact element holding area into the insertion area. In the case of a female circular connector, at least one metallic contact element for electrical contacting and / or at least one contact sleeve protrudes in the insertion direction from the contact element holding area into the insertion area and runs completely through the solid cylinder in the insertion direction.

In the contact element holding area of the connection element, the at least one contact element is arranged and / or supported through the cable contact area, the solid cylinder being made of an electrically insulating material.

In the cable contact area of the connection element, the at least one contact element likewise protrudes through the solid cylinder made of an electrically insulating material up to a side of the connection element opposite the insertion side of the connection element. The at least one contact element forms a contact sleeve in the cable contact area, which is designed for contact with a cable.

The at least one half-shell clamping sleeve can at least partially surround the cable contact area along the longitudinal axis or completely surround the cable contact area and at least partially surround the contact element holding area. In the assembled state, the at least one half-shell clamping sleeve is positively aligned on the connection element and designed to surround the non-insulated area of the cable along the longitudinal axis. In addition, the at least one half-shell clamping sleeve is electrically connected to the braided shield of the cable in the assembled state.

The circular connector housing is arranged around the connection element and surrounds the insertion area, the contact element holding area and the cable contact area of the connection element along the longitudinal axis. In addition, the circular connector housing is partially arranged around the at least one half-shell clamping sleeve along the longitudinal axis. The circular connector housing can be attached to a the side opposite the insertion side of the circular connector have a thread which is arranged in the insertion direction on the outside of the circular connector housing.

The closure cap surrounds the partial area of the half-shell clamping sleeve along the longitudinal axis that is not surrounded by the circular connector housing. The closure cap can have a thread complementary to the thread of the circular connector housing on the inside in the insertion direction. The thread of the circular connector housing and the complementary thread of the closure cap can be designed to be interlocking. In the assembled state, the thread of the circular connector housing can engage in the complementary thread of the closure cap and the closure cap fixes the half-shell clamping sleeve in the longitudinal direction. In addition, the clamping sleeve of the half-shell clamping sleeve fixes the cable in the assembled state and electrically connects the braided shield of the cable.

In the assembled state, the circular connector can have exactly one half-shell clamping sleeve according to the invention and exactly one half-shell clamping sleeve not according to the invention. The half-shell clamping sleeve according to the invention and the half-shell clamping sleeve not according to the invention are designed to completely surround the non-insulated area of the cable along the longitudinal axis.

In a preferred embodiment of the circular connector, the circular connector has a first and a second half-shell clamping sleeve. The two half-shell clamping sleeves according to the invention are designed to completely surround the non-insulated area of the cable along the longitudinal axis.

In a further preferred embodiment of the circular connector, the groove of the at least one half-shell clamping sleeve is brought into engagement with a bulge of the circular connector housing that is complementary to the groove, and / or
the groove of the at least one half-shell clamping sleeve is brought into engagement with a bulge of the connecting element that is complementary to the groove.

In the assembled state, the circular connector can have exactly one half-shell clamping sleeve according to the invention and precisely one half-shell clamping sleeve not according to the invention or two half-shell clamping sleeves according to the invention. The two half-shell clamping sleeves are designed to completely surround the non-insulated area of the cable along the longitudinal axis.

In a further preferred embodiment of the circular connector, the groove of the first half-shell clamping sleeve is brought into engagement with a bulge of the circular connector housing that is complementary to the groove and the groove of the second half-shell clamping sleeve is brought into engagement with a bulge of the connecting element that is complementary to the groove. The two half-shell clamping sleeves according to the invention are designed to completely surround the non-insulated area of the cable along the longitudinal axis.

In a further preferred embodiment of the circular connector, the circular connector has a first and a second half-shell clamping sleeve and the first and second half-shell clamping sleeve are firmly connected to one another and form a hollow metallic cylinder.

Due to the two half-shell clamping sleeves according to the invention that are firmly connected to one another, it is not necessary to align the two half-shell clamping sleeves with one another when assembling the circular connector. The hollow metallic cylinder can be pulled over the partial area of the cable without insulation and then the first end face of the half-shell clamping sleeves can be aligned together on the connection element.

In a further preferred embodiment of the round plug connector, the round plug connector housing has a fixing body for detachable fixing with a complementary fixing body of the complementary plug-in element, and the fixing body has a latching means and / or a screwing means.

The connection element of the circular connector is in some areas Fixing body arranged. The fixing body extends from the plug-in surface along the longitudinal axis of the circular connector over the entire length of the plug-in area and at least in some areas over the contact element holding area. The fixing body can also be arranged over the entire length around the contact element holding area and at least in areas around the cable contact area. The fixing body can consist of several components.

The locking means can be designed, for example, as a locking means of a push-pull circular connector and the screwing means can be designed, for example, as a threaded ring.

In a further preferred embodiment of the circular connector, the circular connector also has a metal cylinder, the metal cylinder being designed in such a way that the cable can be firmly connected mechanically to the metal cylinder and the braided shield of the cable can be electrically connected, and the metal cylinder is designed in such a way that the at least a half-shell clamping sleeve can be firmly connected to the metal cylinder.

Another aspect of the solution to the problem relates to a plug-in system with a round plug connector according to one of the preceding embodiments and a complementary plug-in element, the complementary plug-in element having a complementary connection element that can be connected to the connection element of the round plug-in connector.

In a preferred embodiment of the plug-in system, the complementary plug-in element has a complementary fixing body which can be brought into engagement with the fixing body of the round plug connector.

In a further preferred embodiment of the connector system, the connector system is designed as a push-pull connector system.

In particular, the complementary plug-in element can be achieved by applying a predetermined force, which in particular depends on the elastic properties of the complementary latching means and / or spring element depends and / or is predetermined, are electrically and mechanically connected and / or fixed along an insertion direction with the circular connector. Correspondingly, the complementary plug-in element can be released from the plug-in connector counter to the plug-in direction by applying a predetermined force, which in particular depends on the elastic properties of the complementary latching means and / or spring element and / or is predetermined, ie a fixation that is present in the assembled state can thereby be achieved be canceled between circular connector and complementary plug-in element.

Optionally, the circular connector and / or the complementary plug-in element can have further components and / or the plug-in system can have further optional additional modules, such as a seal and / or one or two restraining rings, which prevent and / or reduce unintentional loosening of the plug-in connection.

The statements made above or below regarding the embodiments of the first aspect also apply to the above-mentioned further independent aspects and in particular to preferred embodiments in this regard. In particular, the statements made above and below on the embodiments of the respective other independent aspect also apply to an independent aspect of the present invention and to preferred embodiments in this regard.

In the following, individual embodiments for solving the problem are described by way of example using the figures. Some of the individual embodiments described have features that are not absolutely necessary in order to implement the claimed subject matter, but which provide the desired properties in certain applications. Thus, embodiments are also to be viewed as being disclosed falling under the technical teaching described, which do not have all the features of the embodiments described below. Furthermore, in order to avoid unnecessary repetition, certain features are only mentioned in relation to some of the embodiments described below. It should be noted that the individual embodiments should therefore not only be viewed individually, but also viewed together. On the basis of this overview, the person skilled in the art will recognize that individual embodiments can also be modified by including individual or multiple features of other embodiments. It is pointed out that a systematic combination of the individual embodiments with one or more features that are described in relation to other embodiments can be desirable and sensible and should therefore be considered and should also be regarded as encompassed by the description.

Brief description of the drawings

Figure 1

shows a perspective view of the outside of a half-shell clamping sleeve according to the invention according to a preferred embodiment;

Figure 2

shows a perspective view of the inside of a half-shell clamping sleeve according to the invention according to a preferred embodiment;

Figure 3

shows a perspective view of the circular connector according to a preferred embodiment from a front view;

Figure 4

shows a perspective view of the circular connector according to a preferred embodiment from a rear view;

Figure 5

shows a perspective exploded view of the circular connector according to a preferred embodiment from a rear view.

Detailed description of the drawings

The location details chosen in the present description, such as. B. top, bottom, side, etc., each refer to the figure immediately described and shown and should be transferred to the new position in the event of a change in position.

The Figures 1 and 2 each show a perspective view of a half-shell clamping sleeve 100 according to the invention according to a preferred embodiment. Figure 1 shows the half-shell clamping sleeve 100 from its outside and Figure 2 shows the half-shell clamping sleeve 100 from its inside. The half-shell clamping sleeve 100 is designed in one piece.

The basic shape of the half-shell clamping sleeve 100 is designed as a hollow metallic half-cylinder 110. The two longitudinal sides 140 of the half-cylinder 110 run parallel to a virtual cylinder axis of the half-cylinder 110 and, in the assembled state of a circular connector 200, run parallel to an insertion direction E. In the radial direction between the outside and the inside of the half-cylinder 110 and in the longitudinal axis direction between two end faces 150, 160 of the half cylinder 110 each spans a longitudinal surface. The wall thickness of the half cylinder 110 corresponds to a radial expansion of the longitudinal side 140 and the length of the half cylinder 110 corresponds to the expansion of the longitudinal side 140 in the longitudinal direction.

The two end faces 150, 160 of the half cylinder 110 deviate from the basic shape of a half cylinder. The first end face 150 is a side which, in the assembled state of a circular connector 200, faces an insertion side. The first end face 150 of the half-cylinder 110 is designed to be approximately semicircular. In the radial direction between the outer radius and the inner radius of the half-cylinder 110 and in the circumferential direction between the two longitudinal sides of the half-cylinder 110 a first end face spans.

The first end face 150 of the half cylinder 110 has a groove 120 in the direction of the longitudinal axis of the half cylinder 110. From the first end face 150, the groove 120 can be U-shaped and / or V-shaped and / or rectangular and / or trapezoidal between the outside and the inside of the half-cylinder 110. The shape of the groove 120 is aligned with the complementary bulge with which it is designed to be able to engage in the assembled state. The groove 120 can also assume a shape in which a complementary bulge is secured against displacement in the longitudinal direction in the assembled state. The securing can be designed by a bulge of the groove 120 in the circumferential direction of the half cylinder 110. In the assembled state, the complementary bulge engages in the bulge of the groove 120. In addition, the end face of the groove 120 can be widened in the circumferential direction with respect to the complementary bulge, in order to enable a simplified introduction of the bulge during the assembly and / or alignment of the half-shell clamping sleeve 100.

The second end face 160 of the half-cylinder 100 is a side which, in the assembled state of a circular connector 200, faces away from an insertion side. The second end face 160 of the half cylinder 110 is designed to be approximately semicircular. A second end face spans in the radial direction between the outside and the inside of the half-cylinder 110 and in the circumferential direction between the two longitudinal sides 140 of the half-cylinder 110.

The second end face 160 of the half cylinder 110 is designed as a clamping sleeve 130. The clamping sleeve 130 can be moved elastically radially to the longitudinal axis. The area of the clamping sleeve 130 can extend at least partially in the circumferential direction and partially in the longitudinal axis direction away from the second end face 160 of the half cylinder 110 in the direction of the first end face 150 of the half cylinder 110. The clamping sleeve 130 can be movable to different extents in the radial direction along the longitudinal axis, for example maximally movable on the second end face 160 and minimally movable on the opposite side of the clamping sleeve 130.

The clamping sleeve 130 can have one or more clamping arms 132. The at least one clamping arm 132 can be spaced apart in the circumferential direction and have two parallel longitudinal sides in the longitudinal axis direction.

The partial area of the clamping arm 132 on the inside of the clamping sleeve 130 that can be connected to the braided shield of a cable can have one or more fixing elements, e.g., latching hooks. The fixing elements are designed to fix the clamping sleeve 130 to the braided shield of the cable.

The inner surface, that is to say the inner side and the outer surface, that is to say the outer side of the half-cylinder 110 can have partial areas with different inner and outer radii. These partial areas can be designed as additional electrical contact areas and / or as spacers and / or locking means and / or for stiffening the half-cylinder 110.

The Figures 3 and 4 each show a perspective view of the circular connector 200 according to a preferred embodiment. Figure 3 shows the circular connector 200 from a front view and Figure 4 shows the circular connector from a rear view.

The circular connector 200 has a connection element 210 and two half-shell clamping sleeves 100 from an insertion side counter to the insertion direction E and along the longitudinal axis of the circular connector 200. The connection element 210 and the two half-shell sleeves 100 are arranged within a circular connector housing 220 and are fixed in the longitudinal direction on a side of the circular connector 200 opposite the insertion side by the circular connector housing 220 and a closure cap 230. In an assembled state, an internal thread of the closure cap 230 engages in an external thread of the circular connector housing 220.

The circular connector housing 220 can have a fixing body 222 for detachable Have fixing with a complementary fixing body of a complementary plug-in element. The fixing body can have a latching means 224 and / or a screwing means. The locking means 224 can be designed, for example, as a locking means of a push-pull circular connector 200 and the screwing means can be designed, for example, as a threaded ring.

A male circular connector 200 can have one or more contact pins in the insertion direction in the insertion area and a female circular connector 200 can have one or more contact sleeves in the insertion direction E from in the insertion area.

The Figure 5 shows a perspective exploded view of the circular connector according to a preferred embodiment from a rear view. The connection element 210, two half-shell clamping sleeves 100, the circular connector housing 220 with its fixing body 222 and its latching means 224 and the closure cap 230 are shown as individual components in a non-assembled state.

The connection element 210 can have an insertion area with contact pins and / or contact sleeves, a contact element holding area and a cable contact area along the longitudinal axis. The contact pins or contact sleeves are arranged in the contact element holding area in such a way that they are guided from the insertion side parallel to the longitudinal axis through a solid cylinder made of an electrically insulating material. In the cable contact area of the connection element 210, the contact pins or contact sleeves are arranged in such a way that they can be contacted with the cable cores of a cable.

The first end face 150 of a half-shell clamping sleeve 100 can be designed so that, in the assembled state, it can be aligned in a form-fitting manner on the connection element 210 of the circular connector 200. The surface of the first end face 150 of the half-cylinder 110 is aligned on a side opposite the insertion surface of the connection element 210. The opposite of the insertion surface can be used Side of the connection element 210 be designed as an insulating solid cylinder. This full cylinder of the connection element 210 can have a groove on the outer surface, into which the first end face 150 of the half cylinder 110 can be engaged and positively aligned in the assembled state. The surface of the first end face 150 and the groove on the outer radius of the connection element 210 can be designed as a smooth cross-sectional surface and / or as bulges in and / or against the longitudinal axis.

The two half-shell clamping sleeves 100 can be designed to at least partially surround the cable contact area completely and the contact element holding area at least partially along the longitudinal axis. In this case, the two half-shell clamping sleeves 100 are designed to be alignable in a form-fitting manner on the connection element 210 in the assembled state and to surround the non-insulated area of the cable along the longitudinal axis. In the assembled state, the half-shell clamping sleeves 100 can be electrically connected to the braided shield of the cable.

In the assembled state, the thread of the circular connector housing 220 engages the complementary thread of the closure cap 230 and the closure cap 230 fixes the two half-shell clamping sleeves in the longitudinal direction. In addition, in the assembled state, the clamping sleeves 130 of the two half-shell clamping sleeves 100 fix the cable and electrically connect the braided shield of the cable.

In the assembled state, the circular connector 200 can have exactly two half-shell clamping sleeves 100 according to the invention or just one half-shell clamping sleeve 100 according to the invention and exactly one half-shell clamping sleeve not according to the invention. A half-shell clamping sleeve not according to the invention can, for example, have no groove 120 and / or no clamping sleeve.

In the case of only exactly one half-shell clamping sleeve 100 according to the invention, the groove 120 of the half-shell clamping sleeve according to the invention can in an assembled state 100 can be brought into engagement with a bulge of the circular connector housing 220 that is complementary to the groove 120 or with a bulge 212 of the connection element 210 that is complementary to the groove 120.

In the case of exactly two half-shell clamping sleeves 100 according to the invention, the groove 120 of a first half-shell clamping sleeve 100 according to the invention with a bulge of the circular connector housing 220 that is complementary to groove 120 and the groove 120 of a second half-shell clamping sleeve 100 according to the invention with a bulge 212 of the invention that is complementary to groove 120 can Connection element 210 are brought into engagement.

The two half-shell clamping sleeves 100 are each designed to completely surround the non-insulated area of the cable along the longitudinal axis.

The two longitudinal surfaces of the respective half-shell clamping sleeves 100 can be designed to align the half-cylinders 110 of two half-shell clamping sleeves 100 with one another in a form-fitting manner and to form a hollow solid cylinder for electrical shielding. The longitudinal sides 140 can be designed as smooth surfaces without deviating in a circumferential direction. The two longitudinal sides 140 can, however, also have grooves and / or bulges along the longitudinal axis direction and / or in the radial direction and / or in the circumferential direction. These grooves and / or bulges can be designed in order to be able to engage with the bulge complementary thereto of a second half-shell clamping sleeve 100.

Due to the narrowing of the inner radius on the second end face 160 of the half-cylinder 110 of the half-shell clamping sleeve 100, i.e. in the area of the clamping sleeve 130 up to the outer radius of the cable, the half-shell clamping sleeve 100 is firmly connected to the cable and / or against relative movements of the two components in the longitudinal direction, mechanically fixed in the radial direction and in the circumferential direction.

The outside of the clamping sleeve 130 can have at least one groove and / or at least have a bulge, in which an inside of the closure cap 230 of the circular connector 200 can be engaged and / or positively aligned in the assembled state.

List of reference symbols

100

Half-shell clamping sleeve

110

Half cylinder

120

Groove

130

Clamping sleeve

132

Clamp arm

140

Long side

150

first face

160

second face

200

Circular connector

210

Connection element

212

Bulge of the connection element

220

Circular connector housing

222

Fixation body

224

Locking means

230

Cap

E.

Insertion direction

Claims (13)

Half-shell clamping sleeve (100) for electrically shielding a cable in a circular connector (200), having: a hollow, metallic half cylinder (110); a groove (120) being formed in the longitudinal axis direction of the half cylinder (110) on a first end face of the half cylinder (110); a second, opposite end face of the half-cylinder (110) being designed as a clamping sleeve (130); and wherein the half-shell clamping sleeve (100) is designed in such a way that, in an assembled state in a circular connector (200), the first end face of the half-cylinder (110) can be aligned in a form-fitting manner on a connection element (210) of the circular connector (200), one with the connection element (210 ) connected cable can be mechanically fixed by means of the clamping sleeve (130) and the clamping sleeve (130) can be electrically connected to a braided shield of the cable. Half-shell clamping sleeve (100) according to claim 1, wherein the half-shell clamping sleeve (100) is formed in one piece. Half-shell clamping sleeve (100) according to claim 1 or 2, wherein the clamping sleeve (130) has at least one clamping arm (132); and
wherein the part of the at least one clamping arm (132) which forms the second end face of the half-cylinder (110) is radially elastically movable in relation to the direction of the longitudinal axis of the half-cylinder (110). Half-shell clamping sleeve (100) according to one of the preceding claims, wherein the clamping sleeve (130) has at least two clamping arms (132) and the at least two clamping arms (132) are spaced from one another. Half-shell clamping sleeve (100) according to one of the preceding claims, wherein the wall thickness of the half-shell clamping sleeve (100) is in a range from about 0.1 mm to about 1 mm. Circular connector (200) for connecting to a complementary plug-in element, comprising: at least one half-shell clamping sleeve (100) according to one of the preceding claims; a connection element (210) for connecting to a complementary connection element of the complementary plug-in element; a circular connector housing (220); and a closure cap (230) for fixing the cable; wherein the connection element (210) is arranged within the circular connector housing (220) and is firmly connected to the circular connector housing (220); wherein the at least one half-shell clamping sleeve (100) is arranged within the circular connector housing (220); and wherein the at least one half-shell clamping sleeve (100) is fixed between the connection element (210) and the closure cap (230). Circular connector (200) according to claim 6, wherein the circular connector (200) has a first and a second half-shell clamping sleeve (100). Circular connector (200) according to claim 6 or 7, wherein the groove (120) of the at least one half-shell clamping sleeve (100) is brought into engagement with a bulge of the circular connector housing (220) complementary to the groove (120), and / or
wherein the groove (120) of the at least one half-shell clamping sleeve (100) is brought into engagement with a bulge (212) of the connecting element (210) that is complementary to the groove (120). Circular connector (200) according to claim 7, wherein the groove (120) of the first half-shell clamping sleeve (100) is brought into engagement with a bulge of the circular connector housing (220) which is complementary to the groove (120), and
wherein the groove (120) of the second half-shell clamping sleeve (100) is brought into engagement with a bulge (212) of the connecting element (210) which is complementary to the groove (120). Circular connector (200) according to one of Claims 6 to 9, the circular connector (200) having a first and a second half-shell clamping sleeve (100), and
wherein the first and second half-shell clamping sleeves (100) are firmly connected to one another and form a hollow metallic cylinder. Circular connector (200) according to one of claims 6 to 10, wherein the circular connector housing (220) has a fixing body (222) for detachable fixing with a complementary fixing body of the complementary plug-in element, and
wherein the fixing body (222) has a latching means (224) and / or a screwing means. Circular connector (200) according to one of Claims 6 to 11, the circular connector (200) additionally having a metal cylinder;
wherein the metal cylinder is designed such that the cable can be permanently connected mechanically to the metal cylinder and the braided shield of the cable can be electrically connected; and
wherein the metal cylinder is designed in such a way that the at least one half-shell clamping sleeve (100) can be firmly connected to the metal cylinder. Plug-in system with a circular plug-in connector (200) according to one of Claims 6 to 12 and a complementary plug-in element,
wherein the complementary plug-in element has a complementary connection element which can be connected to the connection element (210) of the circular connector (200).

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