Coaxial plug connector

Abstract

A coaxial plug connector is described that includes a cable section and an interface section. The cable section has an outer cable contact, a cable insulator arranged in the outer cable contact, and an elongated inner cable contact spaced apart from the outer cable contact by the cable insulator, wherein the inner cable contact is electrically connected to the cable. The interface section has an external interface contact, an interface insulator arranged in the external interface contact, and an elongated internal interface contact spaced apart from the external interface contact by the interface insulator. The internal interface contact is received in the central notch of the interface insulator. At least one first projection projecting radially outwards is arranged at the inner interface contact part, and the first projection is attached to the inner surface of the interface insulator under mechanical prestress, and / or the interface insulator comprises at least one second projection projecting radially inwards, and the second projection is attached to the inner surface of the interface insulator under mechanical prestress. The second protrusion abuts against the outer surface of the inner interface contact portion under mechanical prestress.

Description

Technical Field

[0001] The utility model relates to a coaxial plug-in connector which is constructed in a multi-piece manner and can be variably configured in terms of interface geometry. Background Art

[0002] Coaxial plug connector is used to connect at least two coaxial cables to each other conductively or connect the coaxial cable, for example, to the coaxial terminal of the device. Here, the coaxial cable has a conductive inner conductor, a conductive outer conductor and an insulating layer placed between the inner conductor and the outer conductor. In this case, the outer conductor generally encapsulates the inner conductor, but is electrically insulated from the inner conductor by the insulating layer placed in between. Therefore, the outer conductor can be used as a shield, so as to shield the inner conductor from interference caused by the incident electromagnetic field, for example. Here, two coaxial cables can be connected to each other by forming a coaxial plug connection by a coaxial plug connector installed at the end of one of the coaxial cables. Here, not only the inner conductors of the two cables are respectively made to contact each other electrically, but also the outer conductors of the two cables are respectively made to contact each other electrically, and at the same time, it is ensured that there is always enough electrical insulation between the inner conductor and the outer conductor even within the coaxial plug connection.

[0003] Here, the two coaxial plug connectors are constructed to have interface geometries that are complementary to each other, so that these coaxial plug connectors can be coupled to each other mechanically and electrically. In this case, one of the two coaxial plug connectors can be designed as a plug in terms of its interface geometry, and the other coaxial plug connector can be designed as a socket in a manner adapted thereto.

[0004] Coaxial plug-in connectors are proposed that are constructed in multiple parts and can be variably adapted to different applications in terms of their interface geometry. For example, US Pat. No. 10,938,169 B2 describes a coaxial plug consisting of a cable section and an interface section and a method for producing the same. Utility Model Content

[0005] There may be a need for an alternative and / or improved electrical coaxial plug connector. In particular, there may be a need for a coaxial plug connector that is simple to produce, especially on an industrial scale with high piece quantities.

[0006] Such a need is met by the subject matter of the independent claims. Advantageous embodiments are set forth in the dependent claims, the subsequent description and the drawings.

[0007] One aspect of the utility model relates to a coaxial plug connector. The coaxial plug connector has a cable section and an interface section. The cable section has an external cable contact, a cable insulator and an elongated internal cable contact. Here, the cable insulator is arranged in the external cable contact, the internal cable contact is separated from the external cable contact by the cable insulator, and the internal cable contact can be electrically connected to the cable. The interface section has an external interface contact, an interface insulator and an elongated internal interface contact. Here, the interface insulator is arranged in the external interface contact, and the internal interface contact is separated from the external interface contact by the interface insulator. The internal interface contact is accommodated in a central notch in the interface insulator. At least one first protrusion extending outward in the radial direction is constructed at the internal interface contact, and the first protrusion is abutted against the inner surface of the interface insulator under mechanical prestress. Alternatively or supplementally, at least one second protrusion extending inward in the radial direction is constructed at the interface insulator, and the second protrusion is abutted against the outer surface of the internal interface contact under mechanical prestress.

[0008] In addition, a method for producing a coaxial plug connector according to an embodiment of this aspect of the utility model is described here. The method preferably, but not necessarily in the described order, has at least the following method steps:

[0009] Providing an external cable contact, a cable insulator, an elongated internal cable contact, an external interface contact, an interface insulator, and an elongated internal interface contact;

[0010] Install the external interface contact part at the external cable contact part;

[0011] placing an interface insulator into the external interface contact;

[0012] placing a cable insulator into the outer cable contact;

[0013] Inserting the inner interface contact into the cable insulation and into the interface insulation;

[0014] The inner cable contact is inserted together with the cable connected thereto into the cable insulation received in the outer cable contact, and the inner cable contact is brought into contact with the inner connection contact.

[0015] As an introduction, the basic idea and possible advantages of the embodiments of the present invention described here will be briefly explained, wherein this explanation should be understood as merely a rough overview and not as limiting the present invention:

[0016] The coaxial plug connector described here is constructed as a multi-piece and includes at least one cable section and an interface section. Both sections are respectively composed of an external contact, an internal contact, a contact arranged between the two contacts, and an insulator that insulates the two contacts from each other. Although the cable section can always be constructed as the same for greatly different applications, the interface section can be constructed as different according to the application, and in particular constitutes different interface geometries. Since the interface section can be configured as application-specific, that is, especially in terms of its interface geometry, it is adapted to different interface geometries that are used for different applications in the case of different mating plug connectors, so the coaxial plug connector can be adapted to different applications in a simple manner. Here, only the interface section or its components need to be modified, and the cable section can remain the same for different applications. Therefore, when manufacturing the coaxial plug connector, the interface section can be selected from a plurality of possible interface sections. Then, the interface section can be mechanically and electrically connected to the cable section. In this case, the connection between the connection section and the cable section should preferably be irreversible, ie the connection section and the cable section should be connected irreversibly and therefore the connection section can no longer be separated from the cable section without damage after assembly of the coaxial plug-in connector.

[0017] Here, a special feature of the coaxial plug connector proposed here is that the internal interface contact is accommodated in a central notch within the interface insulator and is held relative to the interface insulator due to the mechanical prestress generated between the interface insulator and the internal interface contact. In particular, the internal interface contact is held in a direction corresponding to its longitudinal extension direction, preferably held at the interface insulator in a force-fitting manner. The internal interface contact is therefore held in a clamping manner in the interface insulator that surrounds it in an envelope manner. Here, the mechanical prestress is generated by arranging a protrusion between the internal interface contact and the interface insulator that surrounds it. Here, one or more first protrusions can extend radially outward from the internal interface contact toward the interface insulator, and / or one or more second protrusions can extend radially inward from the interface insulator toward the internal interface contact. Since the internal interface contact is fixed within the interface insulator by the clamped mechanical prestress, the two components can be simply and reliably fixed to each other.

[0018] Possible embodiments of the coaxial plug-in connector and its production method as well as advantages of embodiments are described in more precise detail below:

[0019] The coaxial plug connector has at least two sections, namely a cable section and an interface section, and is therefore constructed in a multi-piece manner. Both the cable section and the interface section are respectively composed of multiple components. The cable section includes at least one external cable contact, at least one internal cable contact, and at least one cable insulator. The interface section includes at least one external interface contact, at least one internal interface contact, and at least one interface insulator. In this case, the components of the cable section can be manufactured or provided separately from the components of the interface section and are mechanically and electrically connected to these components only when the coaxial plug connector is assembled.

[0020] In this case, the term "contact portion" should represent a conductive structure or a conductive component, respectively. The contact portion can be made of metal, in particular. For example, the contact portion, in particular the internal interface contact portion and / or the internal cable contact portion can be a component made of a metal sheet by stamping and bending, i.e. as a stamped bent component. Alternatively, the contact portion, in particular the external interface contact portion and / or the external cable contact portion can be a die-cast component, a stamped bent component or a deep-drawn component. Alternatively, the contact portion can be configured as a pin, in particular a solid pin or a hollow pin. Each individual contact portion can be constructed as an integral one, i.e. formed by a single plate. But in principle, a single contact portion can also be configured as a multi-piece. The contact portion can be rigid, in particular more rigid than the cable to be connected thereto.

[0021] The term "insulator" is intended to denote an electrically insulating structure or an electrically insulating component. In particular, the insulator can be made of a non-conductive material such as a dielectric, in particular a plastic. For example, the insulator can be designed as an injection-molded component. The insulator can be constructed in one piece or in multiple pieces.

[0022] The internal cable contact is configured to be long and narrow. That is, the dimension of the internal cable contact along the longitudinal direction, i.e. the length, is greater than the dimension in the transverse direction, i.e. the width. The internal cable contact can be straight or pin-shaped in particular. At the first end, the internal cable contact can be specifically configured to connect one end of the cable to the internal cable contact. In particular, it can be provided that the inner conductor of the coaxial cable is connected to the internal cable contact. For this purpose, a crimping structure can be provided at the first end of the internal cable contact, by means of which the internal cable contact can be crimped, for example, with the exposed stranded wire of the inner conductor of the cable to be connected. However, alternatively, the first end of the internal cable contact can also be connected to the cable to be connected in other ways, for example, by soldering, welding, bonding, etc. At the second end opposite to the first end, the internal cable contact can be configured to cooperate with the internal interface contact so that a conductive connection is established between the two. The internal cable contact and the internal interface contact can be configured geometrically in particular so that they can be mechanically plugged together and a good conductive contact between the two components is guaranteed here.

[0023] The cable insulator is preferably also configured as elongated. Here, the cable insulator can have the same length, a larger length or a smaller length compared to the internal cable contact. The cable insulator can be configured as a sleeve or sleeve-shaped. The cable insulator can be configured as a cylindrical component, i.e. a tube, in particular. Here, the cable insulator can have a triangular, rectangular or geometrically differently configured cross section. The cable insulator can surround a radially internal, preferably central elongated cavity with a side surface. The internal cable contact can be arranged in the cavity. The cavity can be dimensioned and / or shaped so that the internal cable contact can be introduced into the cavity of the cable insulator at least partially with precise fit or without clearance. For this reason, the external cross-sectional dimensions of the internal cable contact can be substantially as large as the internal cross-sectional dimensions of the cavity in the cable insulator or only slightly smaller or larger than the internal cross-sectional dimensions of the cavity in the cable insulator. The external contour of the internal cable contact can be complementary to the internal contour of the cable insulator. In the case of a cylindrical cross section, the outer diameter of the inner cable contact can therefore be the same size as the inner diameter of the cable insulator or slightly smaller or larger than the inner diameter of the cable insulator. The cable insulator can surround or enclose the inner cable contact accommodated in its cavity along its entire length and / or along its entire circumference. Accordingly, the cable insulator can ensure good electrical insulation between the inner cable contact and radially further external components, such as, in particular, the outer cable contact. In this case, the inner cable contact and the cable insulator can be locked, pressed or otherwise fixed to each other.

[0024] The external cable contact is preferably also configured as elongated. It can have the same length, a larger length or a smaller length compared to the internal cable contact and / or the cable insulator. The external cable contact can be used as a housing for the coaxial plug connector in the cable section of the coaxial plug connector. The external cable contact can be configured as a sleeve or a sleeve shape. The external cable contact can be configured as a cylindrical component in particular. Here, the external cable contact can have a triangular, rectangular or geometrically differently configured cross section. The external cable contact can surround a radially internal, preferably central elongated cavity with a side surface. The cable insulator can be arranged in the cavity. The cavity can be particularly dimensioned and / or shaped so that the cable insulator can be introduced into the cavity of the external cable contact with at least partial precise fit or without clearance. For this reason, the external cross-sectional dimensions of the cable insulator can be substantially as large as the internal cross-sectional dimensions of the cavity in the external cable contact or only slightly less than or greater than the internal cross-sectional dimensions of the cavity in the external cable contact. The outer contour of the cable insulator can be complementary to the inner contour of the external cable contact. Therefore, in the case of a cylindrical cross section, the outer diameter of the cable insulator can be as large as the inner diameter of the external cable contact or slightly smaller or larger than the inner diameter of the external cable contact. The cable insulator and the external cable contact can be locked, squeezed, bonded or otherwise fixed to each other. The external cable contact can surround or encapsulate the cable insulator contained in its cavity along its entire length and / or along its entire perimeter. Accordingly, the cable insulator can ensure good electromagnetic shielding of the internal cable contact contained in the cable insulator. At the first end, the external cable contact can be specially constructed to connect the end of the cable to the external cable contact. In particular, it can be provided that the outer conductor of the coaxial cable is connected to the external cable contact. For this purpose, a crimping structure can be provided at the first end of the external cable contact, by means of which the external cable contact can be crimped, for example, with the exposed stranded wire of the external conductor of the cable to be connected. However, alternatively, the first end of the external cable contact can also be connected to the cable to be connected in other ways, for example by soldering, welding, bonding, etc. At the second end opposite to the first end, the external cable contact can be configured to cooperate mechanically and electrically with the interface section. The second end of the external cable contact can in particular cooperate with the external interface contact so that an electrically conductive connection is established between the two. The external cable contact and the external interface contact can in particular be geometrically configured so that they can be mechanically plugged and / or pressed together and thereby ensure good electrically conductive contact between the two components.

[0025] In general, the inner cable contact can be arranged radially centered in the cable section and longitudinally extending from a first end connected to the cable toward a second end connected to the inner interface contact. Here, the inner cable contact is radially within the cable insulation surrounding it and preferably extends coaxially with the cable insulation. The cable insulation is in turn radially accommodated within the outer cable contact surrounding it and preferably coaxially accommodated in the outer cable contact. The cable insulation thus separates the inner cable contact from the outer cable contact not only geometrically but also electrically.

[0026] The components of the interface section can be designed identically or similarly to corresponding components of the cable section. In particular, the internal interface contact can have identical or similar properties to the internal cable contact, the interface insulation can have identical or similar properties to the cable insulation, and / or the external interface contact can have identical or similar properties to the external cable contact. In particular, the functional properties of the components of the interface section can be identical or similar to those of the corresponding components of the cable section.

[0027] But the geometrical design scheme of the different parts of the interface section can be different from the geometrical design scheme of the corresponding parts of the cable section.For example, the perimeter, length and / or profile of the internal interface contact portion, interface insulator and / or external interface contact portion can be different from the perimeter, length and / or profile of the corresponding parts of the cable section.These geometrical designs can especially be selected to make the interface section have a desired interface geometry structure on its side away from the cable section.This interface geometry structure is especially defined by the following: the cross-sectional shape, cross-sectional dimension and / or length of the internal interface contact portion, interface insulator and / or external interface contact portion and the positioning of these parts relative to each other.Here, the interface geometry structure at the interface section can be suitably designed so that the coaxial plug connector can be plugged together with its interface section and the mating plug connector designed to have a correspondingly complementary interface geometry structure.In this case, the interface geometry structure of the coaxial plug connector is designed as a plug shape, and the interface geometry structure of the mating plug connector can be designed as a socket shape accordingly, or vice versa.

[0028] In the assembled coaxial plug connector, the internal cable contact is electrically connected to the internal interface contact. In this way, the cable connected to the internal cable contact, especially in the case of a coaxial cable, is electrically connected to the internal contact of the mating plug connector plugged together with the coaxial plug connector through the internal cable contact and the internal interface contact. In addition, the external cable contact is electrically connected to the external interface contact. Electromagnetic shielding of the internal cable contact and the internal interface contact is thus achieved. In particular, the cable connected to the external cable contact, especially in the case of a coaxial cable, is electrically connected to the external contact of the mating plug connector plugged together with the coaxial plug connector through the external cable contact and the external interface contact. The cable insulator and the interface insulator ensure in this case that the internal cable contact and the internal interface contact are respectively kept spaced apart and electrically insulated from the surrounding external cable contact and the external interface contact. The cable insulator and the interface insulator can preferably be designed so that they preferably completely or at least account for more than 90% of the internal volume of the coaxial plug connector surrounded by the external cable contact and the external interface contact.

[0029] In the case of the coaxial plug connector described here, the longitudinal extension direction of the interface section can extend transversely to the longitudinal extension direction of the cable section. In other words, the coaxial plug connector can be designed as an angled plug connector. Here, the longitudinal extension direction of the cable section - which usually corresponds to the longitudinal extension direction of the internal cable contact and the cable connected thereto - can be transverse and preferably perpendicular to the longitudinal extension direction of the interface section, which usually corresponds to the longitudinal extension direction of the internal interface contact and / or the insertion direction, in which the coaxial plug connector can be plugged together with the mating plug connector. In such an angled design, the coaxial plug connector can be advantageously used even under narrowing conditions.

[0030] Alternatively, however, the coaxial plug-in connector described here can also be designed in a non-angled configuration, in which the interface section and the cable section are arranged in the same direction or in directions parallel to one another.

[0031] The special feature of the coaxial plug-in connector described here is that the internal interface contact is held in a clamping manner under mechanical prestress within a central recess surrounded by the interface insulator, wherein the mechanical prestress is caused by one or more protrusions that extend from the internal interface contact to the interface insulator or in the opposite direction.

[0032] According to one embodiment, an inseparable connection is produced between the first projection and the inner surface of the interface insulator and / or between the second projection and the outer surface of the inner interface contact by elastic and / or plastic material displacement.

[0033] In other words, the first and / or second protrusion is shaped and / or dimensioned so that an elastic and / or plastic material displacement occurs when the internal interface contact is introduced into the notch of the interface insulator. In this case, in particular, the softer material of the interface insulator, i.e., for example, the plastic material forming the interface insulator, can be displaced by the harder material of the internal interface contact. For example, the harder first protrusion at the internal interface contact can displace the material of the softer interface insulator when the internal interface contact is introduced, and thereby cause or contribute to the sought mechanical prestress between the two components. Alternatively or in addition, the softer material of the second protrusion at the interface insulator can be displaced by the harder internal interface contact when the internal interface contact is introduced, and again cause or contribute to the sought mechanical prestress between the two components. By the material displacement caused when the internal interface contact is introduced into the interface insulator, an inseparable connection between the two components, i.e., an irreversible connection that can no longer be separated without damage, can be caused.

[0034] According to one embodiment, the first projection is designed in one piece with the inner connection contact and / or the second projection is designed in one piece with the connection insulator.

[0035] In other words, the first protrusion can extend from the outer surface of the internal interface contact and be integrally connected to the internal interface contact. The first protrusion can be constructed in particular using the same metal plate as the rest of the internal interface contact. For example, the first protrusion can be constructed together during a stamping and bending process for manufacturing the internal interface contact. The second protrusion can extend from the inner surface of the interface insulator and be integrally connected to the interface insulator. The second protrusion can be constructed in particular using the same plastic material as the rest of the interface insulator. For example, the second protrusion can be constructed together during an injection molding process for manufacturing the internal interface insulator. The integral construction of the first and / or second protrusions at the components to which they belong can simplify the manufacture, handling and / or assembly of the components.

[0036] According to one embodiment, a plurality of first protrusions are formed along an outer circumference of the inner interface contact and / or a plurality of second protrusions are formed along an inner circumference of the interface insulator.

[0037] In other words, at the outer surface of the interface contact portion, a plurality of first protrusions may extend toward the interface insulator at different positions along the perimeter. Alternatively or in addition, at the inner surface of the interface insulator, a plurality of second protrusions may extend toward the inner interface contact portion at different positions along the perimeter. By providing a plurality of first and / or second protrusions, the clamping mechanical prestress caused by the protrusions between the interface insulator and the inner interface contact portion may be increased and / or evenly distributed.

[0038] According to a further embodiment, the first and / or second protrusions may be arranged in particular equidistantly.

[0039] Accordingly, the projections can be arranged to be evenly distributed along the circumference of the internal interface contact or the interface insulator. The projections can be configured in particular in a symmetrical arrangement at the respective outer or inner surface. Thus, the clamping mechanical prestress can be evenly distributed and in particular the internal interface contact can be more accurately centered with respect to the interface insulator.

[0040] According to one embodiment, one or more radially outwardly projecting impressions may be formed as first projections on the inner interface contact.

[0041] In this case, the imprint can be understood as a partial area at the internal interface contact portion, at which the material of the internal interface contact portion is locally deformed during the manufacturing process so that it protrudes radially outward beyond the remaining side surfaces of the internal interface contact portion. However, the partial area forming the imprint is connected to the other partial areas surrounding it of the internal interface contact portion in all directions, that is, there is no local punched area adjacent to the imprint (unlike, for example, in the case of a punched locking bolt). The imprint can also be called a closed imprint. Therefore, the imprint is constructed as a single piece with the rest of the interface contact portion. Therefore, the imprint can also be regarded as a local bulge. For example, the imprint can have a round convex ball shape. Alternatively, the imprint can be constructed as an elongated narrow portion and preferably extends in the longitudinal direction of the internal interface contact portion. For example, the imprint can be generated by locally applying force to the plate forming the interface contact portion. Here, the imprint can protrude radially outward beyond the remaining outer surface of the enclosing imprint of the internal interface contact portion.

[0042] Since the material forming the imprint, i.e., for example, a locally deformed metal sheet, generally has a higher mechanical load capacity and / or hardness than the material of the interface insulator, i.e., for example, plastic, the imprint causes partial areas of its material to be elastically and / or plastically displaced when the internal interface contact is inserted into the interface insulator and in this way ensures the desired mechanical prestress and, if necessary, an inseparable connection between the two components.

[0043] According to one embodiment, a ridge projecting radially outwards can be formed as the first projection on the inner interface contact.

[0044] In this case, the ridge can be understood as a partial area at the internal interface contact, at which the material of the internal interface contact is bent radially outwardly adjacent to the outer edge or the inner edge of the interface contact during the manufacturing process. For example, the edge of the outer periphery of the plate (the internal interface contact is bent from the plate) is chamfered radially outward to form a ridge. Alternatively, a partial area of ​​the internal interface contact is punched out so that a ridge extending outward is formed at the periphery of the perforation produced here. The ridge can also be called a stamped ridge. Therefore, the ridge is preferably constructed as a single piece with the rest of the interface contact. In this case, the ridge constitutes the following edge: the edge is sharp, radially outwardly oriented and extends beyond the remaining side surfaces of the internal interface contact. The edge forming the ridge can be narrow and long and extends along the longitudinal direction of the internal interface contact in particular. For example, the ridge can be generated by locally applying force to the plate forming the interface contact at its edge.

[0045] Since the material forming the ridge, i.e., for example, a locally deformed metal plate, generally has a higher mechanical load capacity and / or hardness than the material of the interface insulator, the ridge elastically and / or plastically displaces a portion of its material when the internal interface contact is inserted into the interface insulator and in this way ensures the sought mechanical prestress and, if necessary, an inseparable connection between the two components.

[0046] According to one embodiment, one or more crush ribs can be formed as second projections on the connection insulator.

[0047] In this case, the extruded rib can be understood as a partial area at the interface insulator, at which the material of the interface insulator protrudes radially inward beyond the remaining inner surface of the interface insulator. The extruded rib can be constructed in particular as a narrow and elongated protrusion extending in the longitudinal direction of the internal interface contact. In this case, the extruded rib can be constructed as a single piece with the rest of the interface insulator. For example, additional material can be provided in the area of ​​the extruded rib when manufacturing the interface insulator. The interface insulator can be constructed in particular as an injection molded component, and additional plastic material is sprayed on the inner surface to form the extruded rib or the mold used in the case of injection molding is equipped with a recess complementary to the extruded rib to be formed. The extruded rib can be long and narrow. The extruded rib can be parallel to the longitudinal extension of the internal interface contact in particular.

[0048] Since the material forming the interface insulator (including its one or more extruded ribs) generally has a smaller mechanical load capacity and / or hardness than the material of the internal interface contact, the internal interface contact can elastically and / or plastically displace at least a partial area of ​​the extruded ribs when inserted into the interface insulator and in this way ensure the sought mechanical prestress and, if necessary, an inseparable connection between the two components.

[0049] According to one embodiment, no locking latch or in any case a single locking latch is formed on the inner connection contact, which engages in a locking manner in a recess in the connection insulating body.

[0050] In other words, in the case of the coaxial plug connector described here, locking of the internal interface contact and the interface insulator by means of a plurality of locking latches arranged at the interface contact, as is often used in conventional coaxial plug connectors for fixing the internal interface contact relative to the interface insulator, can be dispensed with, or at least limited to the provision of a single locking latch. This can be achieved in particular in that the internal interface contact does not need to be fixed, or at least does not need to be fixed only by locking at the interface insulator, but rather the forces that fix the internal interface contact relative to the interface insulator are also brought about by the first and second protrusions described here between the internal interface contact and the interface insulator and the mechanical prestressing caused thereby.

[0051] By completely or at least largely abandoning the provision of a locking latch, the manufacture of the internal interface contact can be simplified, the stability of the internal interface contact can be increased and / or the radiation behavior can be positively influenced, wherein electromagnetic waves are radiated from the internal interface contact when a high-frequency current flows through the internal interface contact.

[0052] According to one embodiment, the external cable contact has a first opening, a second opening and a third opening. In this case, the first opening is arranged at the end face of the external cable contact. The second opening is arranged at the external cable contact at a distance from the first opening. The third opening is constructed and arranged at the side of the external cable contact so that the cable insulator can be placed into the internal volume in the external cable contact through the third opening during the assembly process.

[0053] In other words, the external cable contact of the coaxial plug connector proposed here may not only have a first opening, through which a connection to a cable can be made, and a second opening, through which a connection to an interface section can be made, but a third opening may be provided at the external cable contact in addition. Here, the first opening may be arranged and designed so that the internal cable contact can be introduced into the internal volume surrounded by the sides of the external cable contact in the external cable contact through the first opening in the first insertion direction during the assembly process. The second opening may be arranged and designed so that the internal interface contact can extend through the second opening not only into the internal volume but also into the volume adjacent to the external cable contact. The third opening may be arranged and designed so that the cable insulator can be introduced into the internal volume in the external cable contact in the second insertion direction during the assembly process through the third opening. Here, the second insertion direction extends transversely to, preferably perpendicularly to, the first insertion direction.

[0054] Therefore, by providing the third opening in the external cable contact, it can be achieved that the cable insulator does not necessarily need to be introduced into the external cable contact in the longitudinal direction of the internal cable contact to be accommodated therein, i.e., through the first insertion direction, when assembling the coaxial plug connector. Instead, the cable insulator can be introduced into the internal volume in the external cable contact through the third opening in a second insertion direction extending transversely, preferably perpendicularly to the first insertion direction. Subsequently, the internal interface contact can also be first inserted into the notch in the cable insulator through the third opening, and then further inserted into the notch in the interface insulator. Here, the internal interface contact in the interface insulator can be mechanically tensioned or clamped and thus fixed by the protrusion extending at the internal interface contact and / or the interface insulator. This can significantly simplify the assembly process.

[0055] According to a further embodiment, the third opening can be closed by a cover.

[0056] Here, the cover preferably closes the entire third opening in the case of a completely assembled coaxial plug connector, i.e. preferably covers the third opening over the entire surface. In other words, the third opening can be opened only during the assembly process and closed with the cover once the cable insulator has been accommodated in the external cable contact. In this case, the cover is preferably made of an electrically conductive material and is preferably electrically connected to the external cable contact. Accordingly, the external cable contact can form a closed side surface together with the cover, which encapsulates the internal cable contact and can accordingly be used as a shield. The cover can be connected to the external cable contact irreversibly, i.e. inseparably or non-replaceably, after assembling the coaxial plug connector. For example, the cover can be locked, soldered, welded, bonded or mechanically connected to the external cable contact in other ways.

[0057] According to a further specific implementation, the second interface and the third interface may be opposite to each other.

[0058] Such a design can be advantageous in particular when the coaxial plug connector is designed to be angled. In this case, the cable insulator can be introduced into the inner volume of the outer cable contact through the third opening. Here, the inner interface contact previously or immediately attached to the cable insulator can extend through the second opening toward the interface section. This can significantly simplify the assembly process.

[0059] In general, a method for producing a coaxial plug connector is designed such that a coaxial plug connector can be produced with an interface geometry that can be adapted to a specific application, wherein the interface geometry can be selected for a plurality of different applications.

[0060] To this end, the interface section can be constructed in an application-specific manner by selecting external interface contacts, interface insulators and / or elongated internal interface contacts from a plurality of available corresponding components, so that the interface section has an application-specific geometry in shape and / or size in order to enter into mechanical and electrical connection with an application-specific mating plug connector from a plurality of possible mating plug connectors.

[0061] Thus, depending on the application, the concept proposed here can be used to produce differently designed coaxial plug-in connectors in a simple manner, whose interface geometry is respectively adapted to different types of mating plug-in connectors. Although the components to be used in the interface section can differ in an application-specific manner, the same cable section can be used for each application, thereby simplifying the overall complexity of both the coaxial plug-in connector and its production method.

[0062] It should be noted that some of the possible features and advantages of the present invention are described here with reference to different embodiments of the coaxial plug connector described here on the one hand and with reference to its manufacturing method on the other hand. Those skilled in the art recognize that the features can be combined, transferred, adapted or exchanged in a suitable manner to obtain other embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Advantageous embodiments of the present invention are explained in further detail below with reference to the drawings, wherein neither the drawings nor the explanations should be understood as limiting the present invention in any way.

[0064] Figure 1 A perspective cross-sectional view of a coaxial plug connector equipped with a marking according to a first embodiment of the present invention is shown.

[0065] Figure 2Shown in Figure 1 Magnified perspective detail view of area A marked in FIG.

[0066] Figure 3 A perspective sectional view of a coaxial plug connector equipped with a marking according to a second embodiment of the present invention is shown.

[0067] Figure 4 A perspective cross-sectional view of a coaxial plug connector equipped with stamped ridges according to a third embodiment of the present invention is shown.

[0068] Figure 5 Shown from Figure 4 A perspective and partially cut-away detailed view of an inner interface contact of a coaxial plug connector equipped with stamped ridges and an interface insulator.

[0069] Figure 6 Shown from Figure 5 A perspective detail view of the internal interface contacts.

[0070] Figure 7 A perspective cross-sectional view of an inner interface contact portion and an interface insulator provided with ridges of a coaxial plug connector according to a fourth embodiment of the present invention is shown.

[0071] Figure 8 A perspective cross-sectional view shows an inner interface contact portion of a coaxial plug connector and an interface insulator equipped with extrusion ribs according to a fifth embodiment of the utility model.

[0072] Fig. 9 Shown from Figure 8 A perspective detail view of the interface insulator.

[0073] The figures are merely schematic and not true to scale. The same reference numerals in different figures denote identical or identically acting features. DETAILED DESCRIPTION

[0074] Figure 1 The coaxial plug connector 1 according to the first embodiment is shown, which has a marking 59 at the inner interface contact 17 . Figure 2 As an enlarged detail view shows Figure 1 The portion marked in area “A”. Figure 3 A coaxial plug connector 1 according to a second embodiment is illustrated.

[0075] The coaxial plug-in connector 1 comprises a cable section 3 and an interface section 5 . In the example shown, the coaxial plug-in connector 1 is designed as an angled plug-in connector, ie the longitudinal extension direction 19 of the interface section 5 runs perpendicular to the longitudinal extension direction 21 of the cable section 3 .

[0076] The cable section 3 has an external cable contact 7, a cable insulator 9 and an elongated internal cable contact 11. The external cable contact 7 is a die-cast component, and the internal cable contact 1 is constructed as a stamped and bent component made of a conductive metal sheet. The cable insulator 9 is constructed as a plastic component. The cable insulator 9 is accommodated in an internal volume surrounded by the external cable contact 7. The internal cable contact 11 is coaxially accommodated in a central notch within the cable insulator 9 and is radially spaced apart from the external cable contact 7 by the cable insulator and is therefore electrically insulated. In the example shown, the internal cable contact 11 is constructed as a sleeve that tapers from the first end toward the second end, and the sleeve forms a tip 53 at the second end. At the first end, the internal cable contact 11 is connected to the inner conductor 47 of the coaxial cable 45. For this purpose, the internal cable contact 11 can be crimped to each other with its first end and the inner conductor 47, for example. The outer conductor 51 of the coaxial cable 45 is also connected to the external cable contact 7 by crimping, for example. In the case of the cable 45 , an insulating layer 49 is located between the outer conductor 51 and the inner conductor 47 , said insulating layer 49 electrically isolating these two conductors from each other.

[0077] The connection section 5 has an external connection contact 13, a connection insulator 15 and an elongated internal connection contact 17. The external connection contact 13 is a deep-drawn component, the internal connection contact 17 is in turn configured as a stamped and bent component, and the connection insulator 15 is configured as a plastic component. The internal connection contact 17 is coaxially accommodated in the central recess within the cable insulator 15 and is radially spaced apart from the external connection contact 13 by the cable insulator and is therefore electrically insulated.

[0078] In this case, the external interface contact 13, the interface insulator 15 and the internal interface contact 17 are constructed in terms of their geometric design, i.e. in particular in terms of their size and shape, so that they form an interface geometry 57 at the free end facing away from the cable section 3, and the interface geometry 57 is constructed so that the coaxial plug-in connector 1 can be plugged together via its interface section 5 with the correspondingly complementarily constructed interface geometry of a mating plug-in connector (not shown).

[0079] In the embodiment shown, the cable section 3 of the coaxial plug connector 1 has an elongated shape, wherein a first circular opening 31 is formed in the lower region on the lower end face 38 of the outer cable contact 7. The outer cable contact 7 has a box-shaped geometry in this case and surrounds the first opening 31 in the form of a jacket-shaped wall. In the lower region, a likewise round cable 45 is introduced through the first opening 31 together with the inner cable contact 11 mounted thereon in the insertion direction (i.e. vertically from bottom to top in the figure shown).

[0080] Spaced apart from the first opening 31, the external cable contact 7 has a second opening 33 at the side 39 in the upper region. In the example shown, the second opening 33 is circular. In the upper region, the external cable contact 7 is constructed as a housing with a rectangular cross section. The second opening 33 is used to provide a connection between the cable section 3 and the interface section 5 that is internal and shielded to the outside by the external cable contact 7 and the external interface contact 13. Here, the internal interface contact 17 extends through the second opening 33 from a partial area oriented toward the interface geometry 57 toward a partial area in the internal volume accommodated in the external cable contact 7. Here, the external interface contact 13 is mechanically and electrically connected to the external cable contact 7. The two external contacts 13, 7 can be inseparably mechanically connected to each other, for example, by extrusion, so that they can no longer be separated from each other without damage after the coaxial plug connector 1 is manufactured.

[0081] Also spaced apart from the first opening 31, the external cable contact 7 has a third opening 35 in the upper region at the side 39. The third opening 35 is configured in the example shown to be opposite to the second opening 33 in the side 39 of the external cable contact 7. The third opening 35 is configured in the example shown to be rectangular. It has a width that corresponds substantially to or is slightly smaller than the width of the external cable contact 7 in the upper region. Here, the width of the third opening 35 is as large or larger than the width of the cable insulator 9 to be accommodated in the internal volume of the external cable contact 7. The length of the third opening 35 is significantly greater than its width, and in particular is as long or longer than the length of the cable insulator 9. In the case of the assembled cable plug connector 1, the third opening 35 is closed with a conductive cover 41. Accordingly, the housing formed by the external cable contact 7 then fully encloses the internal volume with the cable insulator 9 accommodated therein and the internal cable contact 11 extending therein and at least a partial area of ​​the internal interface contact 17 extending into the internal volume, except for the first and second openings 31, 33.

[0082] The inner interface contact 17 has a rear length section, which is located within the cable section 3 in the inner volume of the outer cable contact 7, and a front length section, which is located within the interface section 5 in the inner volume surrounded by the outer interface contact 13. In this case, at least the front length section is accommodated in a central recess 37 in the interface insulator 15.

[0083] Here, a plurality of first protrusions 27 in the form of impressions 59 projecting radially outward are formed on the inner interface contact 17. Figure 1 and Figure 2 In the embodiment shown in , the imprints 59 each have a circular contour and are therefore convexly spherical. Figure 3In the embodiment shown in , the imprint 59 has an elongated profile and is therefore rib-shaped. Here, the elongated imprint 59 extends parallel to the longitudinal direction 19 of the internal interface contact portion 17. The imprints 59 are arranged at different positions along the periphery of the internal interface contact portion 17, in particular symmetrically and / or at equidistant intervals. Here, the imprint 59 forms a protruding bulge or bulge at the outer surface 65 of the internal interface contact portion 17.

[0084] Here, the imprint 59 is designed and dimensioned such that it rests on the inner surface 67 of the interface insulator 15 under mechanical prestress. In other words, the internal interface contact 7 has external dimensions in the region of the imprint 59 that are at least slightly larger than the internal dimensions of the interface insulator 15 surrounding it. Accordingly, the imprint 59 can be pressed into the softer material of the interface insulator 15 due to the usually harder material of the internal interface contact 17 and locally cause elastic and / or plastic material displacements. As a result, the internal interface contact 17 can be held on the interface insulator 15 and preferably enter into a connection with the interface insulator that is no longer reversibly separable after the coaxial plug-in connector 1 is assembled.

[0085] In order to additionally fix the inner connection contact 17 on the connection insulator 15, in particular in its longitudinal direction, Figure 1 and Figure 2 In the embodiment shown in , the individual locking latches 23 are arranged protruding laterally at the inner interface contact 17. The locking latches 23 protrude radially outwards beyond the outer surface 65 of the inner interface contact 17, but are temporarily deflected radially inwards during the introduction of the inner interface contact into the central recess 37 of the interface insulator 15. When the target position is reached, the locking latches 23 can then lock into the recess 25, which is provided at the relevant position in the interface insulator 15. Alternatively, as in Figure 3 As illustrated in the embodiment shown in , such a locking latch can be dispensed with and the inner interface contact 17 can be held on the interface insulation 15 solely by the mechanical prestressing caused by the imprint 59 .

[0086] Figure 4 The coaxial plug connector 1 according to the third embodiment is shown, which has a ridge 61 at the inner interface contact portion 17. In this case, Figure 5 and Figure 6 Details are shown in enlarged form. Figure 7 A fourth embodiment is shown in the drawings.

[0087] Figures 4 to 7The embodiments shown in FIG. 5 are identical or similar in many details to the embodiments shown in the previous figures. However, in these embodiments, the radially outwardly projecting protrusions 27 are not configured as imprints 59, but as ridges 61. Figures 4 to 6 In the embodiment shown in FIG, the ridge 61 is designed as a punched ridge adjoining a punched-out opening 69. Figure 7 In the embodiment illustrated in the figure, the ridge 61 is constructed at the side edge of the sheet material, and the internal interface contact part 17 is bent into a stamped bent component by the sheet material. Here, the ridge 61 extends radially outward from the outer surface 65 of the internal interface contact part 17 toward the inner surface 67 of the surrounding interface insulator 15.

[0088] When the coaxial plug connector 1 is assembled, when the internal interface contact 17 is introduced into the central recess 37 of the interface insulator 15, each of the ridges 61 can bear against the inner surface 67 of the interface insulator 15 under mechanical prestress and thus center and fix the internal interface contact 17 on the interface insulator 15. In this case, the ridges 61 can locally displace the material of the interface insulator 15 and ensure an inseparable connection between the internal interface insulator 17 and the interface insulator 15.

[0089] Due to the fixation caused by the ridge 61, as Figure 4 As shown in FIG, supplementary fixing by means of a locking latch can be dispensed with. Figure 7 As indicated in , the individual locking latches 23 can be arranged on the inner connection contacts 17 and engage in complementary recesses 25 in the connection insulating body 15 .

[0090] Figure 8 The inner interface contact portion 17 of the coaxial plug connector 1 according to the fifth embodiment and the interface insulator 15 equipped with the crush ribs 63 are illustrated. Fig. 9 A perspective detailed view of the interface insulator 15 is shown.

[0091] The coaxial plug connector 1 according to the fifth embodiment can be constructed identically or similarly to the previous embodiment in many details and components. However, in this embodiment, instead of the first protrusion 27 extending from the internal interface contact 17, a second protrusion 29 extending radially inward from the interface insulator 15 is provided. Here, the second protrusion 29 is configured as a squeeze rib 63. In this case, the squeeze rib 63 extends from the inner surface 67 of the interface insulator 15 toward the internal interface contact 17 as an elongated structure. Here, the squeeze rib 63 is designed in terms of its arrangement and dimensioning so that it abuts against the outer surface 65 of the internal interface contact 17 under mechanical prestress, and in this way the internal interface contact 17 is centered and fixed.

[0092] When the internal interface contact 17 is introduced into the recess of the interface insulator 15, the harder internal interface contact 17 can deform and / or displace the softer material of the squeeze rib 63 elastically and / or plastically and in this way ensure a fixed, preferably inseparable connection between the internal interface contact 17 and the interface insulator 15. The internal interface contact 17 can additionally be fixed by locking, in which case the locking bolt 23 engages in the recess 25 of the interface insulator 15. However, such a supplementary locking can also be omitted.

[0093] Finally, a possible embodiment of a method for producing the coaxial plug-in connector 1 is explained.

[0094] First, all components of the coaxial plug connector 1 are provided.

[0095] Then, first the external interface contact 13 is mounted on the external cable contact 7. The interface insulator 15 is then inserted into the external interface contact 13. For this purpose, the external interface contact 13 and / or the interface insulator 15 can be inserted into the second opening 33 in the external cable contact 7 and, for example, be irreversibly pressed together with it.

[0096] Subsequently, the cable insulator 9 is inserted through the third opening 35 into the inner volume within the outer cable contact 7. Afterwards, the inner interface contact 17 is also inserted from the rear through the third opening 35 first into the horizontally extending recess in the upper part of the cable insulator 9 and then further into the recess 37 connected thereto in the interface insulator 15. The first protrusion 27 protruding from the inner interface contact 17 and / or the second protrusion 29 protruding from the interface insulator 15 can be deformed or displaced elastically and / or plastically in this case, and thus the centering and fixing of the inner interface contact 17 in the interface insulator 15 can be ensured. In this case, locking of the inner interface contact 17 by means of a plurality of locking latches 23 can be omitted.

[0097] Finally, the inner cable contact 11 can be inserted, for example from below through the first opening 31, together with the cable 45 previously fixed thereto, into the cable insulator 9 already located in the inner space of the outer cable contact 7. Here, the inner cable contact 11 can be inserted until its tip 53 engages in the through hole 55 near the rear end of the inner interface contact 17, thereby making electrical contact between the inner cable contact 11 and the inner interface contact 17.

[0098] Finally, it should be pointed out that terms such as "having", "comprising" etc. do not exclude other elements or steps, and terms such as "a" or "an" etc. do not exclude a plurality. It should also be pointed out that features or steps that have been described with reference to one of the above embodiments may also be used in combination with other features or steps of other embodiments described above. The reference signs in the claims should not be considered as limiting.

[0099] Reference numerals list

[0100] 1 Coaxial plug connector

[0101] 3 Cable sections

[0102] 5 Interface section

[0103] 7 External cable contact

[0104] 9 Cable insulator

[0105] 11 Internal cable contact

[0106] 13 External interface contact

[0107] 15 Interface insulator

[0108] 17 Internal interface contact

[0109] 19 Longitudinal extension of the interface section

[0110] 21 Longitudinal extension of the cable section

[0111] 23 Locking latch

[0112] 25 Gap

[0113] 27 First protrusion

[0114] 29 Second protrusion

[0115] 31 First Opening

[0116] 33 Second Opening

[0117] 35 The third opening

[0118] 37 Central notch in interface insulator

[0119] 38 End face

[0120] 39 Side of external cable contact

[0121] 41 Cover

[0122] 45 Cable

[0123] 47 Inner conductor

[0124] 49 Insulation layer

[0125] 51 Outer conductor

[0126] 53 Tip of internal cable contact

[0127] 55 Through hole in internal interface contact

[0128] 57 Interface Geometry

[0129] 59 Mark

[0130] 61 Ridge

[0131] 63 Extruded Rib

[0132] 65 External surface of internal interface contact part

[0133] 67 Inner surface of the interface insulator

[0134] 69 Punched opening at internal interface contact

[0135] 71 Upper center notch at cable insulator

Claims

1. A coaxial plug connector (1), comprising: A cable section (3) and an interface section (5); The cable section (3) comprises an external cable contact portion (7), a cable insulator (9) and an elongated internal cable contact portion (11), wherein the cable insulator (9) is arranged in the external cable contact portion (7), the internal cable contact portion (11) is separated from the external cable contact portion (7) by the cable insulator (9), and the internal cable contact portion (11) can be electrically connected to a cable (45); The interface section (5) comprises an external interface contact portion (13), an interface insulator (15) and an elongated internal interface contact portion (17), wherein the interface insulator (15) is arranged in the external interface contact portion (13), and the internal interface contact portion (17) is separated from the external interface contact portion (13) by the interface insulator (15); wherein the internal interface contact portion (17) is received in a central notch (37) in the interface insulator (15); At least one first protrusion (27) extending radially outward is constructed on the internal interface contact portion (17), and the first protrusion (27) abuts against the inner surface (67) of the interface insulator (15) under mechanical prestress, and / or at least one second protrusion (29) extending radially inward is constructed on the interface insulator (15), and the second protrusion (29) abuts against the outer surface (65) of the internal interface contact portion under mechanical prestress.

2. A coaxial plug connector (1) according to claim 1, wherein an inseparable connection is established between the first protrusion (27) and the inner surface (67) of the interface insulator (15) and / or between the second protrusion (29) and the outer surface (65) of the internal interface contact portion (17) by elastic and / or plastic material displacement.

3. A coaxial plug connector (1) according to claim 1 or 2, wherein the first protrusion (27) is constructed as a single piece with the internal interface contact portion (17) and / or wherein the second protrusion (29) is constructed as a single piece with the interface insulator (15).

4. The coaxial plug connector (1) according to claim 1, wherein a plurality of first protrusions (27) are constructed along the outer periphery of the internal interface contact portion (17) and / or a plurality of second protrusions (29) are constructed along the inner periphery of the interface insulator (15).

5. The coaxial plug connector (1) according to claim 4, wherein the first protrusions (27) and / or the second protrusions (29) are arranged equidistantly.

6. The coaxial plug-in connector (1) according to claim 1, wherein a radially outwardly projecting imprint (59) is configured as a first projection (27) on the inner interface contact (17).

7. The coaxial plug connector (1) according to claim 1, wherein a ridge (61) projecting radially outward is configured as a first protrusion (27) on the inner interface contact (17).

8. The coaxial plug-in connector (1) according to claim 1, wherein a crushing rib protruding radially inward is formed as the second projection (29) on the connection insulator (15).

9. A coaxial plug-in connector (1) according to claim 1, wherein no locking latch (23) is constructed at the internal interface contact (17) or in any case a single locking latch (23) is constructed, which is engaged in a locking manner in a recess (25) in the interface insulator (15).

10. The coaxial plug connector (1) according to claim 1, The external cable contact portion (7) has a first opening (31), a second opening (33) and a third opening (35); wherein the first opening (31) is arranged at an end surface (38) of the external cable contact portion (7); wherein the second opening (33) is arranged at the external cable contact portion (7) at a distance from the first opening (31); and The third opening (35) is constructed and arranged at the side (39) of the external cable contact (7) in such a way that the cable insulator (9) can be inserted into the inner volume of the external cable contact (7) through the third opening (35) during the assembly process.

11. The coaxial plug connector (1) according to claim 10, wherein the third opening (35) is closed by a cover (41).

12. The coaxial plug connector (1) according to one of claims 10 and 11, wherein the second opening (33) and the third opening (35) are opposite to each other.

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