EP3399599B1 - Plug connector, connector and connector system - Google Patents

Description

The invention relates to a connector system comprising a connector, in particular a push-pull connector, and a plug for such a connector.

It is known to use connector systems for separating or connecting two line sections which are formed for carrying an electrical current and / or for transmitting electronic signals. The individual connectors of these connector systems have connecting sections which can be coupled by means of a form fit and / or a force fit and which, in particular when used in devices that require the connection to be secured against unintentional loosening, such as when used in industrial systems or in a motor vehicle, by means of a screw connection can be secured. In addition, there are so-called push-pull connector systems in which the connector system is coupled without the provision of a thread or a nut. The problem is that only one of the different types of systems can be used in each case, since the conventional connector systems are incompatible with one another.

EP 1 115 179 A2 discloses a multi-toothed locking ring for a rotary coupling system which traverses a thread of a complementary half of the rotary coupling system in the axial direction and engages on the external thread of the complementary half.

EP 0 881 713 A1 discloses a lockable electrical connector having at least one contact-carrying first part and at least one contact-carrying second part, each part having a housing in which the corresponding contact is held by insulating material, the housing of the second part on the housing of the first Part can be plugged in and to lock the second part on the first part at the end of the mating process, the housing of the two parts carries a movable ring.

EP 1 672 751 A1 discloses a socket for compact fluorescent lamps with bases of the types G23 or G24 with a socket housing part made of insulating material containing electrical contacts, with locking springs arranged in the socket housing part engaging behind the locking lugs present on the lamp socket for locking the lamp socket.

The object of the present invention is to provide an improved connector, a plug for such a connector and a connector system.

According to one aspect of the invention, a connector system according to claim 1 is provided.

Advantageously, the connector according to the invention is suitable for separating or connecting two current-carrying line sections in devices that require the use of vibration-proof connections or connections secured against unintentional loosening during operation of the device due to vibrations and / or frequent relative movements of individual components against each other, and which nevertheless quickly and should be easy to solve.

In order to produce an electrically conductive connection between the plug connector and the complementary plug, plug connectors and / or plugs can have a connection contact. The plug connector and / or the plug can have an insulating body or a plug insulating body, in which the connection contacts can be arranged. The insulation body or plug insulation body can have a plurality of essentially cylindrical insulation body recesses which extend in the axial direction through the insulation body or plug insulation body. The connection contacts, which can each have a stranded wire connection section, can be arranged in the insulation body recesses. The strand connection sections can each be connectable to the electrical lines or the individual strands of a respectively assigned electrically conductive cable. To establish such an electrically conductive connection, the strand connection sections are each connected to an associated strand, for example by soldering or clamping the strand to the strand connection section. The number of connection contacts of a connector or plug is not limited, and can be, for example, 2 to 8 or more.

The connection contacts also each have a contacting section, wherein the contacting section can be designed as a female or a male variant. The connection contacts of the plug are preferably each formed as a male contact section, the male contact section being designed in such a way that it can be inserted into a female contact section. The connection contacts of the plug connector are preferably each formed as a female contacting section, the female contacting section being designed such that it can accommodate a complementary male contacting section. The female connector can also be referred to as a socket. If contact is established between the preferably male contacting sections of the plug and the preferably female contacting sections of the plug connector, the plug and the plug connector are connected in an electrically conductive manner. In other words, to establish an electrically conductive connection or the plug connection, the male contacting sections of the complementary plug are pushed in a plugging direction into the female contacting sections of the plug connector, the plugging direction resulting from a directed movement of the plug and plug connector along their axial extent to one another.

The receiving area of the connector can in particular be defined by the movable sleeve element and the at least one lance, the sleeve element at least partially enclosing the lance. The sleeve element can be movable in the axial and / or in the radial direction relative to the lance. Instead of a single lance, a plurality of lances can be provided which are at least partially enclosed by the sleeve element.

The lance extends with its longitudinal dimension along the longitudinal axis of the sleeve element and has a latching hook which can undercut a holding configuration formed on the complementary plug in such a way that the Connection of connector and plug is held positively in the plug position. The latching hook can extend at least radially inward from the lance, the holding configuration of the plug then extending radially outward from the plug, so that the latching hook can undercut the holding configuration. The term undercutting can in principle also mean reaching behind or hooking or hooking behind. In other words, the terms “undercut”, “gripping behind”, “rear hook” or “hooking in” can be used synonymously in this application.

If several lances are provided on the connector, the plug can have several holding configurations, in particular one per lance. The latching hook of the lance and / or the holding configuration of the plug can each be formed with a slope so that the latching hook can slide past the holding configuration with little resistance during an insertion movement. The lance is elastically displaceable in particular while the latching hook slides past the holding configuration and springs back after sliding past, as a result of which the latching hook can latch in a form-fitting manner behind the holding configuration. Since the lance can be moved outwards, various external profiles can be formed on the plug without hindering the connection of the plug connector and plug.

To release the positive connection between the latching hook and the holding configuration, the sleeve element can have a lifting configuration per lance, which can interact with a displacement configuration formed on each lance such that the lance can be displaced radially outward when the sleeve element moves relative to the lance. The radial displacement here means a movement of the lance in a radial direction, that is to say along an imaginary axis of symmetry through the connector that extends orthogonally to the length. The term “outward” denotes the direction of movement of the lance during the elastic displacement in relation to the receiving area, viewed in a radial cross section, the receiving area representing an inner area. So the lance shifts in Outward direction, away from the shooting area.

To displace the lance, the sleeve element can be moved relative to the lance in such a way that the lifting configuration of the sleeve element is approximately congruent with the displacement configuration of the lance, whereby the lance is displaced elastically outward in the radial direction. In order to prevent the displacement configuration from tilting with the lifting configuration during the relative movement, the displacement configuration and / or the lifting configuration can each have a slope. As a result, the displacement configuration and the lifting configuration slide with a relative movement along the inclines and the relative movement can be carried out with little and approximately constant expenditure of force. When the effort is reduced, the displacement configuration and the lifting configuration slide from one another along the inclines in such a way that an original position of the sleeve element, i.e. the position before the relative movement, is essentially reached again, whereby the lance is no longer elastically deformed.

As soon as the lance is elastically displaced outwards, the plug is free of the form-fitting connection between the locking hook of the lance and the holding configuration of the plug and the connection area of the plug can be pulled out of the receiving area of the plug connector, whereby the electrically conductive connection can be separated.

At least one limiting section can also be formed on the connector, which limits a relative movement of the sleeve element to the lance in such a way that, during the relative movement, the lifting configuration of the sleeve element cannot be moved beyond a provided position on or beyond the displacement configuration of the lance.

The relative movement of the sleeve element can, depending on the embodiment, take place either in the axial direction relative to the lance or in a radial rotary movement relative to the lance. The bevels on the displacement configuration of the lance and / or on the lifting configuration of the sleeve element can be provided in accordance with the intended relative movement. The sleeve element is preferably essentially cylindrical and extends coaxially with the plug connector or the insulation body. The sleeve element can be coupled to the plug connector or the insulation body via the lance or the lances, in particular it can be coupled to the plug connector or the insulation body exclusively via the lance or the lances.

The sleeve element has a sleeve ring lying radially on the inside and the lifting configuration is formed on the sleeve ring.

The sleeve ring of the sleeve element can advantageously be manufactured inexpensively by means of various manufacturing processes. For example, the sleeve element can be formed in one piece with the sleeve ring by means of an injection molding process, or the sleeve element and sleeve ring are formed in several pieces, with the sleeve element being connected to the sleeve ring by subsequent joining, for example by gluing, pressing or welding. The sleeve element formed in this way with a radially inner sleeve ring moves the sleeve ring and thus the lifting configuration when the sleeve element moves relative to the lance, whereby the lifting configuration can engage the displacement configuration when the sleeve element moves relative to the lance.

The sleeve ring preferably has at least one recess, and the lance extends through the recess in such a way that the lifting configuration is arranged radially on the inside of the lance, and by means of a relative movement of the sleeve element to the lance, the lifting configuration engages with the displacement configuration, whereby the lance is elastically displaceable radially outward.

The recess can be formed on the sleeve ring radially on the outside and open radially outwards, whereby the lance can be displaced elastically radially outwards. This ensures that the lance can be displaced without hindrance will. The sleeve ring can otherwise be connected to the sleeve element at the remaining sections.

If the plug connector has a plurality of lances, the number of recesses in the sleeve ring can correspond to the number of lances, with one lance each being able to be arranged in a recess. Advantageously, by means of a single movement of the sleeve element relative to the lances, the latching hooks of the plurality of lances can be released simultaneously from the holding configurations of the plug, whereby the plug can be unlocked and removed in one working step.

The sleeve element and the sleeve ring are preferably separate components. The sleeve ring can be arranged in the sleeve element. The sleeve element and the sleeve ring can each be formed as one-piece components. The sleeve element and the sleeve ring can also be designed as a multi-part component. If the sleeve ring is arranged in the sleeve element, a two-part sleeve assembly is formed. In particular, casting, milling or injection molding can be used as a method for producing the sleeve element and the sleeve ring.

The latching hook and the displacement configuration preferably point in the same radial direction. Consequently, the latching hook and the displacement configuration can point either together or at the same time in the radial direction inward or in the radial direction outward.

For example, the sleeve element can have at least one radially inwardly deformed lance passage area, the lance passage area extending in the axial direction along a section of the sleeve element, and wherein the lance passage area has a recess and the lance thus extends through the recess along the radially inwardly deformed lance passage area that the lifting configuration is arranged radially on the inside of the lance, and by means of a relative movement of the Sleeve element for the lance, the lifting configuration engages with the displacement configuration, whereby the lance is elastically displaceable radially outward.

In other words, the radially inwardly deformed lance passage area of the sleeve element can extend in some areas in the direction of the longitudinal axis of the sleeve element and have a depth at which the lance can extend from the passage of the lance through the recess along the radially inwardly deformed lance passage area. The lifting configuration can be formed on a suitable section of the lance passage area as a structure extending radially outward from the sleeve element or the lance passage area. The suitable section means in particular the section of the lance passage area which is located in the axial direction, i.e. in the direction of the longitudinal axis of the sleeve element, approximately at the level of the displacement configuration of the lance. The displacement configuration can point or protrude inward in the radial direction. By means of a movement of the sleeve element relative to the lance, the lifting configuration can come into engagement with the displacement configuration, whereby the lance can be displaced elastically radially outward. Advantageously, the sleeve element can also be produced in this way without the provision of a sleeve ring, the lifting configuration being formed in a cost-effective manner by providing the inwardly deformed lance passage area with the recess.

The connector preferably has a plurality of lances, the lances being formed on a carrier element and the displacement configurations of the lances in each case interacting with the lifting configuration of the sleeve elements in such a way that when the sleeve element moves relative to the plurality of lances, the lances simultaneously radially outward are elastically displaceable.

The carrier element can be ring-shaped and / or sleeve-shaped and forms the base for the lance or preferably the plurality of lances. The lances extend axially forward in a starting from the carrier element Insertion direction of the connector, which runs opposite to an insertion direction of the connector.

Advantageously, a plurality of lances can be produced in one piece together with the carrier element, for example as a turned part or by means of an injection molding process, which results in inexpensive production and simple assembly in the connector. In addition, no further supports for the majority of lances need to be provided on the connector.

The lances are preferably spaced apart from one another at regular angular intervals. Advantageously, the receptacle area of the connector is formed with a uniform distribution of lances, so that when the connector is electrically connected to the complementary plug, insufficient electrical contact between individual, complementary connection contacts of the plug connector and plug is avoided. In addition, it is ensured that when the connector system, i.e. the connector and the complementary plug, is loaded, all lances have to hold approximately the same amount of force with one force, thereby avoiding damage to individual lances, for example through breakage or plastic deformation.

The latching hook and the displacement configuration preferably extend radially inward from the lance. As a result, with a relative movement of the sleeve element to the lance, the lance can be elastically displaced radially outward, whereby the positive connection between the latching hook and the holding configuration can be released by means of one work step, the connector having a smooth profile on the outside. The connector therefore advantageously takes up little space.

The latching hook and / or the displacement configuration preferably have an inclined section. The lance therefore slides advantageously with little resistance along the lifting configuration of the sleeve element and along the holding configuration of the plug, overcoming the elastic deformation of the Lance, whereby the plug can be connected to the connector without great effort.

According to a further aspect of the invention, a plug for the connector system is provided, wherein the plug has a connection area with a thread and a holding configuration, and wherein the thread has at least one axially extending lowered area, wherein on the rear portion of the connector in the plugging direction of the lowered area, the holding configuration is formed, wherein in a plugged position of the plug and the connector the lance is arranged in the lowered area such that the holding configuration of the plug is undercut by the latching hook of the at least one lance.

The plug can have a plug insulation body, wherein the plug insulation body can have a plurality of essentially cylindrical insulation body recesses which extend in the axial direction through the plug insulation body. Terminal contacts can be arranged in the insulation body recesses, each of which has a strand connection section. The strand connection sections can each be connectable to the electrical lines or the individual strands of a respectively assigned electrically conductive cable. In order to produce such an electrically conductive connection, the strand connection sections can each be connected to an associated strand, for example by soldering or clamping the strand to the strand connection section.

The connection contacts also each have a contacting section, wherein the contacting section can be designed as a female or a male variant. The connection contacts of the plug are preferably each formed as a male contacting section, the male contacting section being designed such that it can be inserted into the preferably female contacting section of the plug connector.

The thread of the plug can have a plurality of recessed areas, which can be approximately strip-shaped, the recessed areas extending from the holding configuration, starting in the plugging direction or in the axial direction. The recessed areas can be produced, for example, by means of milling and can be designed as a flattened residual thread or completely without a thread. The lowered areas can also be referred to as thread recesses. The recessed areas can be formed along the periphery of the connection area in the areas which, in the mating position, correspond to the areas of the lances and the lifting configurations of the connector. The plug preferably has three recessed areas. The lowered areas can have different widths in the circumferential direction. A lowered area can be wider in the circumferential direction, while the other lowered areas have a — preferably identical — narrow dimension in the circumferential direction. On the one hand, the wider, recessed area can serve as a visual orientation aid which, in order to connect correctly to the connector, must be aligned with an orientation marking or orientation recess of the connector. Furthermore, one of the lances and / or the lifting configurations of the plug connector can be made wider in the circumferential direction than the remaining lances or lifting configurations, so that the plug can only be inserted into the plug connector correctly aligned with the plug connector. With correct alignment, the plug can be guided in its plugging movement towards the plug connector through the interaction of the lowered areas with the lances or lifting configurations to the plugging position before it reaches the plugging position. The lowered area or the lowered areas are flanked, in particular, in the circumferential direction by threaded sections. The threaded sections allow the connector to be screwed to the connector by means of a fastening nut.

Although the plug for arranging a plurality of lances can have a plurality of lowered areas or threaded sections, the plug can be screwed into a conventional complementary screw connector with an internal thread by means of the thread. The plug is therefore advantageous both for conventional connectors with an internal thread and for the Connector according to one aspect of the present invention is provided. The thread preferably has a plurality of depressed areas, and one depressed area has a dimension that is wider in the circumferential direction than the other depressed areas. Due to the differently dimensioned lowered areas, namely a lowered area with a wider dimension in the circumferential direction and the other areas with a narrower dimension in the circumferential direction, a plug-in movement from the plug into the plug-in connector can position from plug-to-plug connector from the first contact from Snap hooks or lifting configuration to the lowered area.

In the following, an embodiment of the invention is described in more detail with reference to the accompanying figures. It goes without saying that the present invention is not limited to this embodiment and that individual features of the embodiment can be combined to form further embodiments within the scope of the appended claims.

Show it:

Fig. 1

a perspective exploded view of a connector according to an embodiment;

Fig. 2

a perspective view of a connector;

Fig. 3

a side view of a connector;

Fig. 4

a perspective view of a carrier element with a plurality of lances;

Fig. 5

a perspective view of a carrier element with a sleeve ring arranged thereon;

Fig. 6

a perspective view of a sleeve member;

Fig. 7

a perspective view of a plug;

Fig. 8

a side view of a connector system, comprising a connector and a plug.

Fig. 1 shows a perspective exploded view of a plug connector 10 according to an embodiment, comprising a cable 12 with in the present case five strands 14 thereof. The cable 12 or the strands 14 are formed for carrying an electrical current and / or for transmitting electronic signals. The strands 14 are each connected to a strand connection section of a connection contact AK of an insulation body 16, the insulation body 16 having a plurality of the connection contacts AK. For this purpose, the insulation body 16 has a plurality of essentially cylindrical insulation body recesses which extend in the axial direction through the insulation body. The connection contacts AK are arranged in each of these insulation body recesses. In the present case, the insulation body 16 has five connection contacts AK, which can each be contacted via the end faces 20a, 20b.

The insulation body 16 essentially has a cylindrical shape and is formed from a non-conductive material, in the present case from thermoplastic polyurethane (TPU). The insulation body 16 can, however, also be formed from another suitable plastic. The connection of the individual strands 14 to the respective strand connection section is formed in the present case by means of soldering.

An end section 22 of the cable 12, the strands 14 soldered to the strand connection sections and a rear end section 24 of the insulating body 16 are surrounded by a protective sleeve 26. The protective sleeve 26 is connected to the end section 22 and the rear end section 24 by means of extrusion coating, wherein this extrusion coating can be the last work step in the assembly of the connector 10. The protective sleeve 26 is formed from a non-conductive material, in the present case from thermoplastic polyurethane (TPU). The cable 12 or the strands 14 thereof are connected with the non-free end to an electronic component or an electronic device. On the insulation body 16 is between the Face 20a and face 20b a flange ring 28 is formed. The flange ring 28 is approximately in the middle between the two end faces 20a, 20b, but at a distance from the rear end section 24 or from the protective sleeve 26 (see FIG Fig. 3 ), arranged.

The plug connector 10 further has a carrier element 30, the carrier element 30 being pushed in the axial direction 18 from the end face 20b onto the insulation body 16. In the present case, the carrier element 30 is formed as a carrier ring 32 with a carrier wall 34 lying radially on the outside of the carrier ring 32 (see also FIG Fig. 4 ). The arrow 36 shows the radial direction, the center of an area enclosed by the carrier ring 32 representing the innermost point when viewed in a radial plan view.

The carrier ring 32 has a centrally arranged opening that fits precisely to the rear end section 24 and is connected to an end face of the flange ring 28 by means of a joining process, in this case pressing, with an end face facing the flange ring 28, the end face of the flange ring 28 being that face , which in turn faces the carrier ring 32.

In the present case, a plurality of lances 38 is formed on the support wall 34 of the support element 30, more precisely it is three lances 38. The support element 30 is produced in one piece as a turned part.

The lances 38 extend axially from the support wall 34 in the plug-in direction of the plug connector SR _SV and are arranged radially on the outside of the support ring 32, whereby the lances are spaced apart from the insulation body 16 by the radial width of the support ring 32. The lances 38 are also spaced apart from one another on the carrier ring 32 by the same angular distance, in the present case 120 degrees. The carrier element 30 is made of a metal such as brass or a spring steel.

The lances 38 are elastically displaceable radially outward and each have a latching hook 40 and a displacement configuration 42. The locking hook 40 and the displacement configuration 42, on the other hand, are rigid and essentially non-elastically deformable. The latching hook 40 and the displacement configuration 42 extend radially inward from the lance 38 and each have a ramp-like shape with a slope S.

The latching hook 40 is formed for undercutting an associated holding configuration 44, likewise including a bevel S, of a complementary plug 46 (see FIG Fig. 7 and 8th ), whereby in a plug-in position of the complementary plug 46 with the plug connector 10, the plug connector system, which comprises the plug 46 and the plug connector 10, is in the present case positively connected. To form the plug-in position, the plug 46 and plug connector 10 are pushed together in the axial direction 18, the bevels S of the latching hook 40 and the holding configuration 44 being able to slide on one another, whereby the lance 38 can be displaced elastically radially outward. As soon as the latching hook 40 has passed the incline S of the holding configuration 44, the lance 38 moves back into the original position and the latching hook 40 latches behind the holding configuration 44.

In the present case, the carrier element 30 is surrounded by a sleeve element 48, the sleeve element 48 being essentially formed as a hollow cylinder, the longitudinal extent of which is arranged along the axial direction 18. The sleeve element 48 consequently also surrounds the region of the insulation body 16 which is surrounded by the carrier element 30. The sleeve element is produced from zinc by means of a die-casting process and has, in sections, a circumferential corrugation R, on which the sleeve element 48 can be gripped in a non-slip manner. The corrugation R can be formed from a rubber coating arranged on the sleeve element 48. The corrugation R also has an orientation recess which enables the plug to be placed on the connector in a precisely positioned manner.

A sleeve ring 50 is formed on the sleeve element 48 radially on the inside and essentially at the end (see also Fig. 6 and 8th ). The sleeve element 48 and the sleeve ring 50 form a sleeve assembly 64 (see Fig. 6 ). The sleeve ring 50 is made as a separate component, ie as an independent component by means of an injection molding process from a plastic or by means of machining from a metal and pressed with the hollow cylinder by means of press fitting.

The sleeve ring 50 in the present case has three lifting configurations 52, one lifting configuration 52 per lance 38. The lifting configuration 52 is formed as a recessed section of the sleeve ring 50 and can each come into engagement with the displacement configuration 42 of an associated lance 38. For this purpose, the sleeve ring 50 is formed in the area of the lifting configuration 52 with a recess 54, in which the lance 38 is arranged with an intermediate lance section L arranged between the latching hook 40 and the displacement configuration 42, whereby the lifting configuration 52 is arranged radially on the inside of the lance 38.

The sleeve element 48 and the sleeve ring 50 formed thereon are movable in the axial direction 18 relative to the lance 38, so that by means of a relative movement of the sleeve element 48 or the sleeve assembly 64 to the lance 38 in the plug-in direction of the plug SR _S, the lifting configuration 52 with the displacement configuration 42 in Engagement occurs, whereby the lance 38 is elastically displaced radially outward. In order to enable an unimpeded relative movement of the sleeve element 48 to the lance 38 in the direction of the end face 20b, a distance A is provided between the protective sleeve 26 and the flange ring 28 or the carrier ring 32 arranged on the flange ring 28 (see Fig. 3 ). Alternatively, the sleeve element 48 can also be designed with a shape that can surround the protective sleeve 26, so that no distance A has to be provided.

The engagement between the lifting configuration 52 and the displacement configuration 42 takes place in such a way that due to the axial relative movement of the sleeve element 48 or the sleeve assembly 64 to the lance 38, the lifting configuration 52 slides along the slope S of the displacement configuration 42 and thereby the lance 38 slides radially outward relocated. In order not to hinder the displacement of the lance 38, the sleeve element is radial in the insertion direction SR _SV expanding inside

When the sleeve element 48 or the sleeve assembly 64 moves relative to the lance 38 in the insertion direction SR _SV , the lifting configuration 52 slides back along the displacement configuration 42 into the original position, namely to the position at which the lance intermediate section L is arranged between the latching hook 40 and the displacement configuration 42 is, whereby the lance 38 is no longer displaced. Since in the present embodiment the carrier element 30 is designed with three lances 38 and the sleeve ring 50 has three recesses 54 or three lifting configurations 52, ie one per lance 38, the relative movement of the sleeve element 48 or the sleeve assembly 64 to the lance 38 in the direction of the end face 20b, all three lances 38 can be elastically displaced radially outward at the same time. As a result, a hook behind the holding configurations 44 of the complementary plug 46 can be released by the latching hook 40 of the lance 38, as a result of which the plug 46 can be separated from the plug connector 10. In the present embodiment, the plug connector is formed as a female part of the plug connector system, ie the plug connector has the female connection contacts AK, which are formed for receiving the male connection contacts of the plug 46. Alternatively, the connector 10 can also be designed as a male part of the connector system. Furthermore, a molded seal 56 is arranged on an area of the flange ring 28, which ensures a flush connection between the plug 46 and the plug connector 10.

Fig. 2 shows the assembled state of the plug connector 10 in a perspective view. The connection contacts AK, which are formed to accommodate the current-carrying connection contacts of the plug 46, are arranged on the end face 20a of the insulating body 16.

Fig. 3 shows a side view of the connector 10, from which the arrangement of the sleeve element 48 in relation to the protective sleeve 26 with a distance A can be seen. The sleeve element 48 is for unlocking a connection between plug 46 and plug connector 10 (not shown here) in the direction of the protective sleeve 26 displaceable by the distance A, as a result of which the lances 38 enclosed by the sleeve element 48 can move elastically radially outward, so that a rear hook of the holding configuration 44 of the plug 46 can be released by the latching hook 40 in the plug-in position. The corrugation R is used for comfortable and slip-proof gripping of the protective sleeve.

Fig. 4 shows in detail the carrier element 30 on whose carrier wall 34 the lances 38 are formed. The latching hooks 40 and the displacement configurations 42 are formed on the end section in the insertion direction SR _{SV of} the lances 38 (see FIG Fig. 1 ). The lance intermediate section L on which the lifting configuration 52 and the recess 54 of the sleeve ring 50 are arranged lies between the latching hooks 40 and the displacement configurations 42.

The locking hooks 40 and the displacement configurations 42 each have the slope S, the slope S of the locking hook not having to run at the same angle to the lance 38 as the slope S of the displacement configurations 42. The respective slopes of different embodiments can be different.

Fig. 5 shows the carrier element 30 with the sleeve ring 50 arranged thereon, the sleeve ring 50 with the lifting configuration 52 being arranged in the area of the lance intermediate section L. The lances 38 are in a non-displaced state. If the sleeve ring 50 is displaced in the insertion direction SR _S by means of a movement of the sleeve element 48 (see FIG Fig. 1 ), the lifting configurations 52 each press on the slope S of the displacement configurations 42 (see FIG Fig. 4 , here covered by the lifting configuration 52), whereby the lances 38 are increasingly elastically displaced radially outward. If the lifting configuration 52 glides back along the bevels S to the intermediate lance sections L, the lances shift back into their original position.

Fig. 6 FIG. 14 is a perspective view of the sleeve assembly 64, with FIG In the present embodiment, the sleeve assembly 64 comprises the sleeve element 48 and the sleeve ring 50. The sleeve ring 50 has a recess 54 in each of its lifting configurations 52, whereby the lifting configuration 52 is spaced from the hollow cylindrical body of the sleeve element 48 such that the lance 38 can be arranged between the sleeve element 48 and the lifting configuration 52. The number of recesses 54 corresponds in the present case to the number of lances 38, namely three.

Fig. 7 shows a perspective view of a plug 46. The plug 46 is formed in the present case as a male connector, ie the plug 46 is formed with its male connection contacts for insertion into the female connection contacts AK of the connector 10, and has a cable (not shown) with five in the present case Line contacts or strands (not shown) thereof. The cable or the strands are formed for carrying an electrical current and / or transmitting electronic signals. The strands are each connected to a connection contact (not shown) of a plug insulation body (not shown). The plug insulation body essentially has a cylindrical shape and is made of a non-conductive material, in this case thermoplastic polyurethane (TPU). The connection of the individual strands with the respective line contact area is formed in the present case by means of soldering.

The plug 46 has a radially outer thread 58, the thread 58 having a plurality of axially extending lowered areas 60, a holding configuration 44 also being formed on the rear sections of the lowered areas 60 in the plug-in direction of the plug connector 10. In the plug-in position of plug 46 and connector 10, lances 38 extend along lowered areas 60 up to holding configuration 44 and undercut holding configuration 44 with latching hooks 40. In this case, a lowered area 60 is provided on plug 46 for each lance 38 . The lowered areas 60 can be produced by milling out the thread 58.

The holding configuration 44 has a bevel S on which the bevel S of the latching hook 40 can slide, as a result of which the lance 38 is elastically displaced radially outward until the latching hook 40 engages behind the holding configuration 44 and undercuts the holding configuration 44. To connect the plug 46 to the plug connector 10, it is not necessary in this embodiment to move the lances 38 elastically radially outward by means of the sleeve element 48.

Fig. 8 shows the connector system comprising the plug 46 and the plug connector 10 in the separated state, the arrow 62 showing the plug direction in which the plug 46 can be pushed into the plug connector to establish an electrically conductive connection.

List of reference symbols

10

Connectors

12

electric wire

14th

Strands

16

Insulation body

18th

axial direction

20a

Front side, insulation body

20b

Front side, insulation body

22nd

End section, cable

24

Rear end section, insulation body

26th

Protective sleeve

28

Flange ring

30th

Support element

32

Carrier ring

34

Support wall

36

radial direction

38

lance

40

Locking hook

42

Relocation configuration

44

Hold configuration

46

plug

48

Sleeve element

50

Sleeve ring

52

Lifting configuration

54

Recesses, sleeve ring

56

Molded seal

58

thread

60

sunken area

62

Mating direction

64

Sleeve assembly

A.

distance

AK

Connection contact

L.

Lance intermediate section

R.

Corrugation

S.

Slant

SR _S

Plug direction of the connector

SR _SV

Mating direction of the connector

Claims (9)

1. A plug connector system comprising a plug connector (10), in particular a push-pull plug connector, comprising a receiving region for receiving a connection region of a complementary plug (46),
   wherein the plug connector (10) comprises at least one lance (38) and a sleeve element (48) that can move relative to the lance (38),
   wherein the sleeve element (48) substantially surrounds the receiving region and the lance (38) at least in regions,
   wherein a displacement configuration (42) and a latching hook (40) for undercutting a holding configuration (44) of the complementary plug (46) are formed on the lance (38),
   wherein the sleeve element (48) comprises at least one lifting configuration (52) and the lifting configuration (52) interacts with the displacement configuration (42) such that the lance (38) can be resiliently displaced radially outwards during a movement of the sleeve element (48) relative to the lance (38),
   characterized in that
   the sleeve element (48) comprises a sleeve ring (50) radially on the inside and wherein the at least one lifting configuration (52) is formed on the sleeve ring (50).
2. The plug connector system according to claim 1, wherein the sleeve ring (50) comprises at least one cut-out (54), and
   wherein the lance (38) extends through the cut-out (54) such that the lifting configuration (52) is arranged radially on the inside with respect to the lance (38), and, by means of a movement of the sleeve element (48) relative to the lance (38), the lifting configuration (52) engages with the displacement configuration (42), as a result of which the lance (38) can be resiliently displaced radially outwards.
3. The plug connector system according to claim 1 or 2, wherein the sleeve element (48) and the sleeve ring (50) are separate components and the sleeve ring (50) can be arranged in the sleeve element (48).
4. The plug connector system according to any one of claims 1 to 3, wherein the latching hook (40) and the displacement configuration (42) point in the same radial direction (36).
5. The plug connector system according to any one of claims 1 to 4, comprising a plurality of lances (38), wherein the lances (38) are formed on a support element and the displacement configurations (42) of the lances interact with the respective lifting configurations (52) of the sleeve element (48) such that the lances (38) can be resiliently displaced radially outwards at the same time during a movement of the sleeve element (48) relative to the plurality of lances (38).
6. The plug connector system according to claim 5, wherein the lances (38) are spaced apart from one another at equal angular distances.
7. The plug connector system according to any one of claims 1 to 6, wherein the latching hook (40) and the displacement configuration (42) extend radially inwards from the lance (38), and wherein the latching hook (40) and/or the displacement configuration (42) comprise an inclined portion.
8. The plug connector system according to any one of claims 1 to 7, wherein the plug connector system comprises a plug (46) and
   wherein the plug (46) comprises a connection region having a thread (58) and a holding configuration (44), and
   wherein the thread (58) comprises at least one axially extending recessed region (60),
   wherein the holding configuration (44) is formed on the portion of the recessed region (60) that is behind in the plug-in direction of the plug connector,
   wherein, in a plug-in position of the plug and plug connector, the lance (38) is arranged in the recessed region (60) such that the holding configuration (44) of the plug (46) is undercut by the latching hook (40) of the at least one lance (38).
9. The plug connector system according to claim 8, wherein the thread (58) comprises a plurality of recessed regions (60), and wherein one recessed region (60) is wider in the circumferential direction than the other recessed regions (60).

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