EP4197070A1

EP4197070A1 - Connector device

Info

Publication number: EP4197070A1
Application number: EP21755755.2A
Authority: EP
Inventors: Holger Semrau; Albrecht HOPF
Original assignee: ODU GmbH and Co KG
Current assignee: ODU GmbH and Co KG
Priority date: 2020-08-17
Filing date: 2021-08-05
Publication date: 2023-06-21
Also published as: WO2022037963A1; US20240014597A1; CN116508214A; DE102020121535B4; DE102020121535A1

Abstract

The invention relates to a connector device (10) comprising: a plug (13) which has a plug housing (14) and at least one electrical plug contact (15) that is held so as to be insulated in the plug housing (14); and a socket (11) which has a socket housing (12) and a socket contact (16). The socket housing (12) has an electrically insulating plug channel for receiving the plug contact (15), in which plug channel the socket contact (16) is located. A sleeve (20) is rotatably arranged on the plug housing (14) or the socket housing (12). A slotted guide arrangement (21) is operatively disposed between the sleeve (20), the plug housing (14) and the socket housing (12). A slotted guide (22) of the slotted guide arrangement (21) has a separating portion (22b) having a slope relative to a circumferential direction (U). After the separating portion (22b) in an opening direction, a delay portion (22c) is located, which has a smaller slope than the separating portion (22b).

Description

Connector device [0001] The invention relates to a connector device. An explosion-proof connector is known from the prior art DE 202005 010 927 U1. The plug connector has a plug part and a socket part. The plug part has a housing with an external thread. The socket part has a housing. An outer sleeve surrounds the housing of the receptacle part. The outer sleeve has an internal thread. The outer sleeve can thus be screwed onto the housing of the plug part, with which the plug part and the socket part are fastened to one another. [0003] WO 2007/071968 A2 discloses a connector device with a spigot and a groove which specify a sequence of rotary and/or sliding movements of a part of the connector device relative to another part of the plug connector device for connection or disconnection . The groove may have a Z-shape with axial sections and an intermediate section with a slope relative to the circumferential direction. [0004] US 10033 138 B2 also discloses a connector device in which a groove and at least one cam specify a movement sequence for releasing and connecting. The groove has two axial sections and an intermediate section which runs at an angle to the circumferential direction. DE 102017 112 160 A1 shows an embodiment Illustrative of a connector assembly having a groove and cams, the groove having circumferential portions and axial portions. EP 3467 957 A1 discloses a connector. [0007]EP 3211 727 A1 discloses a connector device with a holding extension and a holding receptacle, the holding extension and the holding receptacle having a latching device with a latching section and a first counter-latching section and a second counter-latching section when separating and also when connecting the parts of the The plug-in connector device latches the latching section first with a counter-latching section and then with the further counter-latching section. It is the object of the invention to specify an improved concept for a connector device. [0009] This object is achieved with a connector device according to claim 1: [0010] The connector device according to the invention has a plug. The plug has a plug housing and at least one electrical plug contact which is held in an insulated manner in the plug housing. The plug connector device has a socket. The socket has a socket housing and a socket contact. The socket housing has an electrically insulating plug channel. This is set up to accommodate the plug contact. The socket contact is arranged in the plug channel. A sleeve is rotatably arranged on the plug housing or the socket housing, which is also referred to as a sleeve or locking sleeve. the can. The plug connector device has a link arrangement which is operatively arranged between the sleeve, the plug housing and the socket housing. The link arrangement preferably has a link which has a separating section. The separating section has a slope relative to a circumferential direction. The connecting link has a deceleration section which is arranged downstream of the separating section in an opening direction and which has a smaller incline with respect to the circumferential direction than the separating section. The delay section can adjoin the separating section in the opening direction. [0011]According to the invention, a plug-in connector device that can be operated intuitively is created because the separating section forces a rotary movement to release the connection between plug and socket, which is converted into a separating movement as with a left-hand thread or alternatively a right-hand thread. [0012] The connector device is preferably designed to be explosion-proof, particularly preferably according to the “flameproof encapsulation” (Ex-d) type of protection. The separating movement can be slowed down (at the same speed) by means of the delay section, possibly down to zero, in order to leave sufficient time for a spark to be extinguished and/or for hot explosion gases to cool down. When the sleeve is turned in the opening direction, the arrangement of the separating section and the delay section ensures that the plug contact and the socket contact are initially separated quickly and the further separating movement can be delayed or slowed down. This concept paves the way to an intuitive connector assembly that allows the contact to be quickly disengaged to provide explosion-proof protection and excessive damage or to reduce or avoid wear and tear of the plug contact and/or socket contact. Due to the slope of the separating section, the connecting link and a cam engaging in it can simultaneously drive the sleeve in a separating direction relative to the plug housing or the socket housing when the sleeve is rotated in the opening direction and/or force such a movement to rotate the sleeve in order to to move the plug housing and the socket housing or the plug and the socket in a separation direction. Conversely, the slope of the separating section can result in the sleeve being moved relative to the plug housing or the socket housing in a connecting direction when the sleeve is rotated relative to the plug housing or the socket housing in the closing direction, in order to move the socket housing and the plug housing relative to one another move towards each other in a connecting direction. Due to the lower gradient of the separating section - this gradient can be 0, for example, so that the separating section runs purely in the circumferential direction - a further separating movement of the plug relative to the socket is temporarily blocked or prevented or at least slowed down with the rotational speed remaining the same. The delay section preferably follows the separating section. [0015]Further features which embodiments of connector devices according to the invention can have individually or together, for example, are described below: [0016]The connector device can have a spring accumulator which is arranged in order to Sleeve to be effective the plug housing and the socket housing. The spring accumulator is set up to store kinetic energy when the sleeve is moved to separate the plug and the socket, in order to subsequently release it during a further separating movement in order to separate the electrical contact between the plug contact and the socket contact or plug contact and socket contacts further away from each other. This makes it possible, preferably, for a certain section of the separation path, ie bringing the plug contact and the socket contact out of contact and/or moving the plug contact and the socket contact further away from one another, to return at a defined speed or at least at a speed above a certain threshold - is placed in order to avoid excessive sparking between plug contact and socket contact and/or contact erosion. The plug contact and the socket contact can be separated from one another abruptly by means of the spring accumulator. Any elastically deformable element that is set up and intended to store mechanical energy in order to release it to support a relative movement of plug contact and socket contact in a separation direction is considered a spring. [0017] The spring accumulator preferably releases the kinetic energy when a cam is guided through a lower section of the separating section. [0018] The plug and the socket preferably have a latching device. The latching device has a latching section and a first counter-latching section. The latching device can additionally have a second counter-latching section. The latching section is designed for this purpose, optionally with the first counter-latching section and the second Counter-locking section, if any, to be engaged. The latching device defines at least two points (stops) at which a further separating movement is only possible after a minimum force has been applied or, conversely, a further connecting movement is only possible by the application of a minimum force. [0019] The latching device and the link arrangement are preferably set up such that the latching section and the first counter-latching section are disengaged when a cam is guided through the separating section. [0020] The plug or the socket preferably has a holding receptacle. The holding receptacle is set up to hold a holding extension which is arranged on or carried by the corresponding other part, the socket or the plug. The holding extension and the holding receptacle are preferably not set up to produce an electrical connection between the holding extension and the holding receptacle. The latching section is preferably arranged on the holding extension, for example formed on it. The first counter-locking section is preferably arranged at a first position in the holding receptacle. If present, the second counter-locking section is preferably arranged at a second position in the holding receptacle. [0022] The connector device is preferably set up such that during or as a result of the passage of a cam through the separating section (by turning the sleeve), the locking section can be brought into engagement with the second counter-locking section and/or disengaged from the first counter-locking section is. [0023]Preferably, when a cam is passed through the separating section, the plug contact and the socket contact are moved away from one another relative to one another in a separating direction, specifically preferably at least partially as a result of the energy released from the spring accumulator. Preferably, the spring-loaded mechanism prevents the plug contact and the socket contact from being held at a distance at which there is increased contact drift. The spring accumulator, alone or together with another device of the plug connector device, ensures that the plug contact and the socket contact are reliably separated from one another. [0024] A force exerted by the spring accumulator to move the plug contact and socket contact relative to one another in the separation direction is therefore preferably greater than a frictional force between the latching section and a carrier of the mating latching section or sections. The mechanical energy is therefore automatically released at one point in the course of guiding the cam through the separating section and leads to the plug contact and socket contact being driven (further) apart. [0025]Preferably, the force exerted by the spring accumulator is greater than a frictional force between the plug contact and the socket contact and/or between the plug and the socket. The force of the spring accumulator is preferably sufficient at least at a specific point or point along the path for separating the socket contact and the plug contact and/or the plug and the socket to overcome the adhesive and/or sliding friction force effective at the point . [0026] The force exerted by the spring accumulator is preferably greater than the sum of the frictional forces between the detent section and the support of the or counter-locking sections and the frictional force between the plug contact and socket contact, which must be overcome in order to separate the plug contact and the socket contact from one another or to safely remove them from one another. The force exerted by the spring accumulator can only be greater than the sum of the forces at a point at which the first latching section and the first counter-latching section have already been disengaged or in the course of disengaging the latching section and the first counter-latching section. [0027] The spring element of the spring accumulator is preferably an element which is separate from an elastically deformable accumulator element of the latching device. The spring accumulator preferably works without a gear, preferably without a wedge gear. The spring store preferably stores the force in the separation direction, in particular the axial direction. [0028] A recess is preferably formed in the blocking section and/or adjacent to the separating section, in which a cam falls, in particular in the event of an explosion between the plug contact and the socket contact. The incursion is relative. The recess can also be moved so that the cam falls relative thereto. In this way, further rotation or movement of the sleeve in the opening direction can be temporarily made more difficult or prevented in order to ensure that hot explosion gases can cool down before the plug contact and socket contact can be moved further apart from one another in the separation direction. When the cam has fallen into the recess, a form fit is preferably formed between the cam and the recess, which must be overcome, preferably against frictional force and/or spring force, in order to further or finally separate the plug and the socket. [0029] The spring accumulator can be set up to hold the cam there at least temporarily, and when the cam has fallen into the recess, so that a holding force has to be overcome in order to rotate the sleeve in the opening direction. [0030] In addition to the separating section and the delay section, the connecting link can also have further sections. For example, the connecting link can have a blocking section, with the separating section being arranged after the blocking section in the opening direction. The blocking section blocks a separating movement (for example in the axial direction) of the plug contact with respect to the socket contact. After the blocking section in the opening direction means that the cam is first guided through the blocking section and then through the separating section in order to separate the plug contact and the socket contact from one another. To do this, the sleeve must be rotated in its own opening direction. [0031] The link preferably has a release section in the opening direction after the delay section, which releases further movement of the plug contact and the socket contact and/or the plug and the socket in the disconnection direction. [0032] Further features and exemplary embodiments result from the dependent claims, the following description and the figures. They show schematically and by way of example: [0033] FIG. 1 shows a connector device according to the invention in a simplified, perspective, partially cutaway view, [0034] FIG. 2a shows a sleeve of the connector device 1 in a cutaway, perspective view, [0035] FIG. 2b—a sectional view to illustrate the plug channel and plug contact. [0036] FIG the connector device according to Figures 1-2, [0037] Figure 4a-d - highly schematized representations of features of an embodiment of the connector device according to the invention and an unplugging sequence, [0038] Figure 5a-h - a highly schematized representation of features of an embodiment of an inventive - appropriate connector set-up and an unmating sequence. An example of a connector device 10 is illustrated schematically in FIG. The plug connector device 10 includes a socket 11 with a socket housing 12 and a plug 13 with a plug housing 14 which carries one, preferably several, plug contacts 15 . The plug contacts 15 extend parallel to one another in the axial direction A. The axial direction A corresponds to the joining direction (also connecting direction) or the separating direction (arrow) in which the socket housing 12 and the plug housing 14 lead towards one another or apart be used to separate the plug contacts 15 from socket contacts 16a (also referred to as socket contacts). In the socket housing 12, the plug contacts 15 are assigned to plug channels 16 (see FIG. 2b). proper openings 17, 18 are provided. In these, the socket contacts 16a are arranged, which are shown by way of example in the illustration of the embodiment according to FIG. A cylindrical surface 19 which is oriented concentrically to the joining or plugging direction A is formed on the plug housing 14 . A sleeve 20 (can also be referred to as a locking sleeve) is held on the cylinder surface 19 and can be rotated at least to a limited extent about the axial direction A (arrow A in FIG. 1) in the circumferential direction (arrow U in FIG. 1). The sleeve 20 is shown in a longitudinal section in FIG. This includes a connecting link groove 22 which is introduced in a cylindrical section 24 of the socket housing 12 which adjoins the end face 23 of the socket housing 12 and whose cylindrical surface defines a circumferential direction U. The cylindrical section 24 is oriented concentrically to the axial direction A. The connecting link groove 22 is arranged in a section of the socket housing 12 over which the sleeve 20 extends when the socket housing 12 and the plug housing 14 are completely brought together. As can also be seen from FIGS. 4a-d and 5a-g, the link groove 22 has a blocking section 22a extending in the circumferential direction U. Alternatively, the blocking section 22a can have a slope or an angle relative to the circumferential direction U other than 0°. The task of the blocking section 22a is to block a separating movement in the separating direction A when the sleeve 20 is in a specific range of rotational positions about the axial direction A. At one end of the locking portion 22a - the beginning, assuming a separating movement, a recess 26 is formed. A section of the link groove 22 referred to as a separating section 22b adjoins the blocking section 22a. The separating section 22b has an incline relative to the circumferential direction U. In other words, the longitudinal extension direction of the separating section 22b has both a non-vanishing component in the circumferential direction U and a non-vanishing component in the axial direction A. This pitch or angle is greater than a pitch of the locking portion 22a, which may be present. Because of the slope, the separating section 22b encloses an obtuse angle with the circumferential direction U. In the illustrated embodiment, a delay section 22c of the link groove 22 follows the separating section 22b. The delay section 22c is oriented purely in the circumferential direction U in the illustrated exemplary embodiments. Alternatively, this can also have an incline relative to the circumferential direction U, which is less than the incline of the separating section 22c. The longitudinal extension direction of the delay section 22c can consequently have a non-vanishing component in the axial direction A (in the separation direction). As can be seen from Figure 2a, the sleeve 20 has on its inner surface an inwardly directed cam 28, which is assigned to the link groove 22 in the socket housing 12 and engages in it as soon as the plug housing 14 and the socket housing 12 are brought together. The cam 28 for the link groove 22 on the socket housing 12 can be designed as a rigid cam 28 or as a radially resilient cam 28. A coupling between the sleeve 20 and the plug housing 14 preferably allows an axial movement of the sleeve 20 relative to the plug housing 14 . In preferred embodiments, the sleeve 20 is not only rotatable about the axial direction A on the plug housing 14 but also movable in the axial direction A on the plug housing 14 . For this purpose, a ring-shaped projection 27, as shown in FIG. The sleeve 20 can preferably be displaced in the axial direction A against a spring force of at least one elastic element 30a, 30b of a spring accumulator 30. The spring accumulator 30 is not shown in FIG. 1, but it is shown schematically in the exemplary embodiment according to FIGS. 4a to 4d and less schematically in the exemplary embodiment according to FIGS. 5a to 5h. The sleeve 20 is therefore preferably mounted on the socket housing 12 with an axial clearance, if necessary against a spring force of an elastic element 30a, 30b. [0049]While the figures show embodiments in which the link groove 22 is introduced into the socket housing 12, it is alternatively possible to introduce a link groove 22 into the plug housing 14. The sleeve 20 can be held on the socket housing 12 accordingly. It is alternatively or additionally possible, and different from what is shown in the figures, to introduce the link groove 22 into the inside of the sleeve. The cams 28 would then be carried by the plug housing 14 and the socket housing 12, respectively. The exemplary embodiment illustrated in FIG. 1 can have a holding receptacle 32, for example in the socket housing 12 or in the socket 11, for receiving a holding extension 33 which is formed on the counterpart, i.e. the plug 13 or the socket 11. In Figures 4a to 4d, a holding device 31 with a holding receptacle 32 and a holding extension 33 is shown schematically. 3 and FIGS. 5a to 5h show less schematic illustrations of exemplary holding devices 31. The holding extension 33 forms a locking section 34 and on the holding receptacle 32 a first counter-locking section 35 and preferably a second counter-locking section 36 is formed. The counter-locking sections 35, 36 define two stopping points on corresponding flanks 35a, 36a during the opening or separating movement of the plug from the socket - Be formed teabschnitten 33a, 33b. These have blunt, for example round or spherical, or pointed locking teeth 37, 38. The holding receptacle 32 has corresponding recesses which form the first counter-locking section 35 and the second counter-locking section 36 . The holding extension 33 can be arranged between the plug contacts 15, for example. The holding receptacle 32 can be arranged, for example, between the connector channels. FIGS. 4a-4d show, in a highly schematized form, parts of a connector device 10 according to the invention, for example according to FIG. 1. Only a section of the plug housing 14 and only a section of the socket housing 12 are shown. The sleeve 20 is shown in Figs. Figures 4a to 4d are shown in a highly schematic and partially transparent manner. The latching device 34 with latching section 34 and first counter-latching section 35 and second counter-latching section 36 is shown in FIGS. While such an arrangement is possible in principle, the one or more locking sections 34 can be formed on a holding extension 33a, 33b and first counter-locking section 35 and second counter-locking section 36 on a holding receptacle 32, as can be seen from FIG. 3 and FIGS. 5a to 5h by way of example . The procedure for separating the plug 13 and socket 11 is as follows (FIGS. 4a to 4d): The cam 28 can be arranged at the start of the blocking section 22a of the link groove 22 due to the rotational position of the sleeve 20. The cam 28 can be pulled or pushed into the recess 26, for example by an elastically deformed element. The element can be the elastic element 30a, 30b of the spring accumulator 30. The cam 28 may have to be moved out of the recess 26 into the part of the blocking section 22a running in the circumferential direction U. The sleeve 20 is rotated in the opening direction, with the cam 28 being moved in the circumferential direction U through the locking portion 22a to the separating portion 22b. The separating section 22b adjoins the blocking section 22a, which extends purely in the circumferential direction U, with a kink 39 of more than 90° but less than 180° (obtuse angle). [0056] Figure 4b shows the cam 28 in the separating section 22b. Due to the partial axial movement in the separating section 22b, the locking tooth 38 or the locking tooth 39 is axial in the first locking recess, which th counter-locking section 35 forms, has been moved further and now abuts against a flank 36a of the first counter-locking section 35, which delimits the first locking recess. In order to be able to move the cam 28 further through the separating section 22b, a holding force must be overcome at this stop by pulling the plug 13 and socket 11 in the opposite direction and/or (simultaneously) turning the sleeve 20 in the opening direction (turning in the opening direction, similar to a right-hand or left-hand thread), the locking tooth 37, 38 is pushed so hard against the flank 36a that the locking section 34 or the holding sections 33a, 33b in turn move so strongly deform until finally the latching engagement between the latching tooth 37, 38 and the first counter-latching section 35, 36 is overcome and another separation path is abruptly released. The plug contact 15 and socket contact 16a are suddenly separated, which reduces the likelihood of sparking and also reduces the occurrence of contact erosion. The connector device 10 is preferably explosion-proof according to the explosion protection type flameproof encapsulation. This is because, despite the sudden separation of plug contact 15 and socket contact 16a, sparks can form and, as a result, an explosion can occur between plug contact 15 and socket contact 16a. However, gaps between plug contact 15 and plug channel 16 are dimensioned so long and narrow that hot gas and/or particles can leave the space between plug contact 15 and plug channel 16 at most when they have cooled down to a non-ignitable temperature. To ensure that there is sufficient time for this and that the gap is not opened too wide so that the hot gas and/or particles cannot cool down sufficiently, various measures are taken according to the invention, which individually or in combination help to avoid this. In the event of an explosion, for example, the cam 28 can be pushed into the recess 40 located at the beginning of the delay section 22c, and further separation of the plug 13 and socket 11 relative to one another or from one another is only possible possible if the plug 13 and socket 11 are moved in the opposite direction (joining direction, connection direction) so that the cam 28 is moved out of the recess 40 and then the sleeve 20 can be rotated further so that the cam 28 can be pushed through the delay section 22c is moved to the release portion 22d. [0059] Due to the smaller incline of the delay section 22c relative to the separating section 22b, the axial separating movement of plug 13 and socket 11 relative to one another is delayed at this point in order to provide sufficient time for the hot explosive gas and/or or particles can cool down. Finally, after the abrupt disengagement of the locking tooth 37, 38 and the first locking recess 35, the locking tooth 37, 38 has fallen into the second locking recess 36, and moving the plug 13 and the socket 11 relative to one another in the disconnection direction requires overcoming a holding force between the locking tooth 37, 38 and the second counter-locking section 36, in particular a second flank 36a. Even if the cam 28 is guided into the release section 22d by the rotation of the sleeve 20 through the delay section 22c, final separation can only take place if the holding force at the stop between the ratchet teeth 37, 38 on the one hand and the second mating latching section 36 is overcome by deforming the latching section 34 of the holding extension 33 . Figure 4d shows the locking tooth 37, 38 disengaged from the second counter-locking bar Section 36. Figures 5a-5h illustrate a separation process in a further embodiment of a connector device 10 according to the invention. For the description, the description of Figures 1-4d can be used accordingly, unless something else results from the following: The embodiment according to FIG. 5a-5h has a spring accumulator 30 which, when the cam 28 is passed through the separating section 22b, permits an axial movement of the sleeve 20 with respect to the plug housing 14 against a spring force. The spring accumulator 30 stores the spring force in the axial direction A. The spring accumulator 30 therefore manages without a gear, preferably without a wedge gear, in order to convert an axial movement into a storage movement, for example in the circumferential direction U. The elastically deformable storage element 30a, 30b (spring) of the spring storage device 30 is shown schematically as a compression spring in FIGS. 5a to 5h. To disconnect the plug contact 15 and the socket contact 16a or the plug 13 from the socket 11, the user turns the sleeve 20 in a counterclockwise direction (opening direction) as the user is used to opening a right-hand thread connection. Alternatively, the link groove 22 can be oriented such that the user must turn the sleeve 20 clockwise to open it, as in a left-hand thread connection. Beforehand, it may be necessary to push the sleeve 20 a little further onto the socket housing 12 in order to move the cam 28 out of the recess 26 at the start of the blocking section 22a of the link groove 22 in order to release the rotary movement. It can be to work against a spring force, for example the spring element 30a, 30b of the spring accumulator chers 30. The movement in the axial direction A can take place automatically if the user turns the sleeve 20 vigorously enough and thus overcomes the frictional force between the cam 28 and the wall of the link groove 22 at the recess 26. The rotational movement is partly converted into an axial movement in order to disengage the cam 28 and the recess. [0064] The user guides the cam 28 through the locking section 22a as a result of the rotary movement. FIG. 5b shows the cam 28 at the transition between the blocking section 22a and the separating section 22b. When the cam 28 is guided through the blocking section 22a, this does not result in a separating movement between the plug 13 and the socket 11 if this is oriented purely in the circumferential direction U. [0065] A further rotary movement on the sleeve 20 causes the cam 28 passed through the partition portion 22b. The connecting link groove 22 or the separating section 22b leads to a restricted guidance of the cam 28, which in turn leads to a rotary movement on the sleeve 20, as in the case of a thread, being partially converted into an axial movement of the sleeve 20. During the axial movement, the spring element or elements 30a, 30b of the spring accumulator 30 is elastically deformed, as illustrated in FIG. 5c, and stores the mechanical energy. The spring hardness or the resistance of the spring element 30a, 30b to elastic deformation is preferably selected such that the latching section 34 of the latching device is pressed against a flank 35a (see Figure 3) of the first counter-latching section 35, but that the force to Deformation of the spring element 30a, 30b is not sufficient, at least initially, to overcome the holding force due to the latching device. In embodiments, as suggested in FIG. 5c, clearly, the spring element 30a, 30b of the spring accumulator 30 can be compressed up to a corresponding stop 41a, 41b or the spring element 30a, 30b can become so hard that as a result a further axial movement of the sleeve 20 - for example converted from a rotary movement of the sleeve 20, as with a thread, and/or supported by an axial movement of the sleeve 20 by the user - is converted into an axial movement of the plug 13 away from the socket 11. To do this, the force must be sufficient to overcome the holding force between the latching section 34 and the first counter-latching section 35 of the latching device. The disengagement of the locking section 34 and the first counter-locking section 35 and the sudden release of the stored energy from the spring accumulator 30 or the sudden relaxation of the spring elements 30a, 30b is shown in the sequence of Figures 5d and 5e. As shown in FIGS. 5d to 5f, the electrical contact between the plug contact 15 and the socket contact 16a is made during the transition from the engagement between the latching section 34 and the first counter-latching section 35 to the engagement between the latching section 34 and the second Counter-locking section 36 separated. Since a minimum force is required to disengage the first mating latching section 35 and the latching section 34, a minimum separation speed is thus defined which the plug contact 15 and the socket contact 16a have relative to one another when they are separated. In order to prevent incorrect operation--to prevent the plug-in contact 15 and the socket contact 16a from being held in a separate position but in a position in which severe contact wear occurs--in the phase with the disengagement of the latching section 34 and the first counter-locking section 35 and the Upon engagement of the latching portion 34 and the second mating latching portion 35, movement of the plug 13 relative to the receptacle 11 is driven in part by the relaxing spring member 30a, 30b. As can be seen from the sequence of Figures 5d to 5g, the spring accumulator discharges its mechanical energy automatically during the movement of the cam 28 through the separating section 22b as soon as the force due to the engagement of the first latching section 34 and the first counter-locking section 35, which prevents this release, is less than the force of the deformed spring element 30a, 30b. This promotes a movement of the plug contact 15 and the socket contact 16a relative to one another in the direction of separation if they are still in contact or if the contact has just been separated, but the plug contact 15 and the socket contact 16a are still so close together that increased contact erosion occurs is to be feared. If an explosion occurs between the plug contact 15 and the socket contact 16a when the plug contact 15 and the socket contact 16a are separated, the engagement between the latching section 34 and the first counter-latching section 35 ensures that the gap between the plug contact 15 and the socket channels remains so narrow that hot explosive gas and/or particles can only leave the space between the plug contact 15 and the socket contact 16a sufficiently cooled so that an atmosphere outside of this space, in particular outside of the connector device 10, is not ignited can. In addition or as an alternative, the recess 40 on the delay section ensures this, as already described in connection with FIGS. 4a-4d. Figure 5f shows the connector device 10 with cam 28 fallen into recess 40 and latching section 34 engaging in second latching recess 36. In order to completely separate plug 13 and socket 11 from one another, cam 28 must be guided through delay section 22c, which takes time for cooling any explosion gases that may have formed. In addition, as can be seen from the sequence of FIGS. 5g-5h, the latching section 34 and the second counter-latching section 36 must be disengaged. This is only possible when the cam 28 is in the release section 22d. FIG. 5g shows the cam 28 on the release section 22d, which adjoins the delay section 22c and preferably runs purely in the axial direction A. In order to finally separate the plug 13 and the socket 11 from one another, the spring element 30a, 30b must be compressed again in the illustrated embodiment, depending on the hardness of the spring up to the stop in order to increase the holding force between the latching section 34 and the second counter-latching bar. cut 36 to overcome. When the latching section 34 and the second counter-latching section 36 are disengaged, as shown in FIG. 5h, the spring 30a, 30b relaxes again. Plug 13 and socket 11 can now finally be moved away from each other. [0073] The spring accumulator 30 can, by means of the same spring element 30a, 30b or a further spring element, also be set up to store spring energy when connecting or joining the plug 13 and the socket 11 in order to use them to suddenly make contact to release between plug contact 15 and socket contact 16a. This can be explained as follows using FIGS. 5a-5h in reverse order: The sleeve 20 is pushed over the socket housing 12, as illustrated in FIG. 5h. The cam 28 is inserted into the separating portion 22b. The resistance between latching section 34 and input 42 of the holding receptacle 32 can now be overcome indirectly via the axial movement of the sleeve 20 or directly by grasping the plug 13 and pressing in the joining direction, in order to position the latching section 34 and the second counter-latching section 36, as shown in Figure 5g , to engage. Plug contact 15 and socket contact 16a are at a distance that does not allow sparking between plug contact 15 and socket contact 16a. The sleeve 20 is now rotated to pass the cam 28 through the delay section 22b. However, further insertion of the holding extension 33 into the holding receptacle 32 is only possible against the resistance between the latching section 34 and the second counter-latching section 36 . The force for disengaging the latching section 34 and the second counter-latching section 36 in the joining direction can, as with a thread, due to the gearing behavior between the cam 28 and the separating section 22b, by rotating the sleeve 20 via the plug 13 onto the retaining extension 33 be transmitted. Alternatively or additionally, this movement can be at least supported by pressing the plug 13 in the joining direction. When the sleeve 20 is rotated in order to guide the cam 28 through the delay section 22b, the spring accumulator 30 with the spring element 30a, 30b mentioned above in connection with the description of the separation or another spring element can help to ensure that the contact between the plug contact 15 and socket contact 16a is made abruptly. For this purpose, mechanical energy is stored by the spring accumulator 30 when the cam 28 is guided through the delay section 22b in the closing direction, with the spring accumulator 30 releasing its energy in the phase in which the latching section 34 and the second counter-latching section 36 are disengaged and the engaging bringing the latching section 34 and the first counter-latching section 35 abruptly releases again. As a result, we made the electrical contact between the plug contact 15 and socket contact 16a abruptly. To secure the connection, the cam 28 can also be guided through the blocking section 22a in the closing direction and preferably snapped into the recess 26 . A connector device 10 is provided with a plug 13, which has a plug housing 14 and at least one electrical plug contact 15 held insulated in the plug housing 14, and a socket 11, which has a socket housing 12 and a socket contact 16a , disclosed. The socket housing 12 has an electrically insulating plug channel for receiving the plug contact 15, in which plug channel the socket contact 16a is arranged. A sleeve 20 is rotatably arranged on the plug housing 14 or the socket housing 12 . Between the sleeve 20, the plug housing 14 and the socket housing 12, a connecting link arrangement 21 is effectively arranged. A link 22 of the link arrangement 21 has a separating section 22b with a pitch relative to a circumferential direction U. In an opening direction after the separating section 22b, a delay section 22c is arranged, which has a smaller gradient than the separating section 22b. List of reference symbols: 10 plug connector device 11 socket 12 socket housing 13 plug 14 plug housing 15 plug contact 16 plug channel 16a socket contact 17 opening 18 opening 19 cylinder surface 20 sleeve 21 link arrangement 22 link groove 22a blocking section 22b separating section 22c delay section 22d release section 23 end face 24 cylindrical section 26 recess 27 projection 28 cam Recess 30 spring accumulator 30a elastic element 30b elastic element 31 holding device 32 holding receptacle 33 holding extension 33a holding section 33b holding section 34 locking section 35 first counter-locking section 35a flank 36 second counter-locking section 36a flank 37 locking tooth 38 locking tooth 39 kink 40 recess 41a stop 41b stop 42 input A axial direction U circumferential direction

Claims

Claims: 1. Connector device (10) comprising: a plug (13) which has a plug housing (14) and at least one electrical plug contact (15) which is held insulated in the plug housing (14), a socket (11) which has a socket housing ( 12) and a socket contact (16), the socket housing (12) having an electrically insulating plug channel (16), in which the socket contact (16a) is arranged, for receiving the plug contact (15), with the plug housing () or the socket housing (12) a sleeve (20) is rotatably arranged, a between the sleeve (20), the plug housing (14) and the socket housing (12) operatively arranged link arrangement (21), a connecting link ( 22) with a separating section (22b), which has an incline relative to a circumferential direction (U), with a delay section (22c) being arranged after the separating section (22b) in an opening direction, which has a lower S slope than the separating portion (22b).

2. Connector device (10) according to claim 1 with a nem spring accumulator (30), which between the sleeve (20), the plug housing (14) and the socket housing (12) and which is adapted to move when moving the sleeve (20) to disconnect the plug (13) and socket (11). - to store energy in order to release it in a further separating movement.

3. Connector device (10) according to any one of the preceding claims, wherein the plug (13) and the socket (11) have a latching device with a latching section (34) and a first mating latching section (35) and, preferably, a second mating latching section (36) have.

4. Connector device (10) according to one of the preceding claims, wherein the socket (11) or the plug (13) has a holding receptacle (32) for receiving a holding extension (33) of the plug (13) or the socket (11 ) having.

5. Connector device (10) according to any one of the preceding claims, wherein the latching section (34) is arranged on the holding extension (33) and wherein the first counter-latching section (35) is at a first position and, optionally, the second counter-latching section (36) is arranged at a second position in the holding receptacle (32).

6. Connector device (10) according to any one of the preceding claims, wherein the connector device (10) is set up such that during the implementation of a cam (28) through the separating section (22b) of the latching section (34) in engagement with the second counter-locking section (36).

7. Connector device (10) according to any one of the preceding claims, wherein when a cam (28) is passed through the separating section (22b) the plug contact (15) and the socket contact (16a) at least partially due to the from the spring accumulator ( 30) are driven away from each other by the released energy.

8. Connector device (10) according to any one of the preceding claims, wherein by the spring accumulator (30) exerted force to separate the plug contact (15) and the socket contact (16a) at a point along the separation path of plug (13) and socket ( 11) is greater than a frictional force between the latching section (34) and the carrier (12) of the counter-latching sections (35, 36).

9. Connector device (10) according to any one of the preceding claims, wherein a recess (40) is formed between the separating section (22b) and the delay section (22c), in which a cam (28) in particular in the event of an explosion between the plug contact (15) and the socket contact (16a) in order to impede or temporarily prevent further movement of the sleeve (20) in the opening direction.

10. Connector device (10) according to claim 9, wherein when the cam (28) has fallen into the recess (40), the cam (28) disengages from the recess (40) against a spring force of the spring accumulator (30). 40) can be brought so that at least the spring force has to be applied to move the sleeve (20) in the opening direction.

11. Connector device (10) according to one of the preceding claims, with a blocking section (22a) of the connecting link (22), wherein the separating section (22b) is arranged after the blocking section (22a) in the opening direction, the blocking section (22a ) blocks a separating movement of the plug contact (15) with respect to the socket contact (16a).

12. Connector device (10) according to one of the preceding claims, wherein the connecting link (22) has a release section (22d) which allows further movement of the plug contact (15) and the socket contact (16a) relative to one another releases in parting direction (A).

13. Plug (13) or socket (11) for a connector device (10) according to any one of the preceding claims.