EP2367235B1 - Plug for connecting with a socket - Google Patents

Abstract

The connection system has a plug and a socket (1) with a bayonet connection with at least one axial insertion channel (8) and at least one peripheral locking channel, whereby the end of the socket for connection to the plug is covered by a cover (10) that is adjustably arranged in the socket so that the opening is exposed when the plug is inserted.

Description

The invention relates to a plug with a socket, wherein a bayonet connection is provided for the connection of plug and socket.

Bayonet connections for a secure connection between a plug and a socket are well known, for example GB 2 195 841 ,

In vehicle construction, especially in motor vehicle construction, mechanical and, above all, electrical connection systems are increasingly desired in the luggage compartment, for example in the boot, in the area of the rear seats and in the cargo area. The known electrical connection systems are cumbersome due to their design or represent disturbing elements. This is especially true for the trunk, with as no protruding parts are desired. When the known electrical connection systems are not in use, in the prior art, the socket is covered by a separate cover member, unless the connection remains completely open. The latter case is special when the cover member is lost.

The present invention is therefore an object of the invention to provide a connection system of the type mentioned above, which has a relatively small overall depth and both in built-in condition as well as when not in use does not interfere.

According to the invention, this object is achieved by claim 1.

Due to the design of the bayonet with the axial insertion channel and offset in the circumferential direction lying locking position, z. As a running in the circumferential direction locking channel is created on the one hand a secure connection and on the other hand, only a relatively small depth needed. The inventive arrangement of the cover, the socket when not in use in a disturbing manner integrated into the environment surrounding the socket or be adapted accordingly. For example, it can be installed in a vehicle wall or loading floor.

The socket can be installed in a surrounding component so that the surface of the socket together with the cover is at least approximately flush with the surface of the wall part surrounding the socket. This means damage to the bush is avoided in this way and a cargo space is not affected by protruding parts.

If the contacts are circumferentially arranged in an electrical connection system, a perfect electrical contact is created, with the addition that when carrying out the electrical connection due to the rotational movement of the plug in the socket, the contacts are always freigerieben, whereby oxidation can be avoided.

The adjustability of the cover and the release of the opening of the socket for a connection can be done in various ways. In a simple manner, a spring device can be provided for this purpose, which pushes back the cover during insertion of the plug into the bayonet connection. After removal of the plug can be forced by a spring bias the cover again in front of the free end face.

In addition to being designed as an electrical connection device, the connection system according to the invention can also be provided simultaneously for a mechanical connection. For this purpose, it is only necessary that a correspondingly designed connecting member is provided as a plug, which is provided for example with a hook or an eyelet, for example, to be able to suspend tensioning cables. Likewise, such a fastening member can also be used as a suspension device.

Advantageous developments and refinements emerge from the remaining dependent claims and from the embodiments described in principle below with reference to the drawing.

Fig. 1

eine perspektivische Darstellung der erfindungsgemäßen Buchse;

Fig. 2

eine Explosionsdarstellung der Buchse nach der Fig. 1;

Fig. 3

eine perspektivische Darstellung eines Steckers als mechanisches Befestigungsglied;

Fig. 4

eine perspektivische Darstellung eines elektrischen Steckers;

Fig. 5

eine perspektivische Darstellung einer Buchse mit einem elektrischen Stecker;

Fig. 6

eine perspektivische Darstellung eines elektrischen Steckers mit einem Verbindungsglied für einen Verbraucher;

Fig. 7

einen Querschnitt durch die Buchse nach der Fig. 1;

Fig. 8

einen Schnitt nach der Linie VIII-VIII der Fig. 7;

Fig. 9

einen Schnitt entsprechend dem Schnitt nach der Fig. 8 mit einer teilweise eingeschobenen Abdeckung;

Fig. 10

einen Schnitt nach der Linie X-X nach der Fig. 7;

Fig. 11

eine perspektivische Explosionsdarstellung eines Steckers in einer anderen Ausgestaltung;

Fig. 12

eine perspektivische Darstellung des Steckers nach der Fig. 11 in zusammengebautem Zustand vor Einfüh-

Fig. 13

rung in eine Buchse beziehungsweise in eine Profilbohrung einer Wand; eine perspektivische Darstellung des in die Buchse eingeschobenen Steckers;

Fig. 14

eine perspektivische Darstellung des in die Buchse eingeschobenen Steckers in Verriegelungsstellung.

It shows:

Fig. 1

a perspective view of the socket according to the invention;

Fig. 2

an exploded view of the socket after the Fig. 1 ;

Fig. 3

a perspective view of a plug as a mechanical fastening member;

Fig. 4

a perspective view of an electrical connector;

Fig. 5

a perspective view of a socket with an electrical connector;

Fig. 6

a perspective view of an electrical connector with a connector for a consumer;

Fig. 7

a cross section through the socket after the Fig. 1 ;

Fig. 8

a section along the line VIII-VIII of Fig. 7 ;

Fig. 9

a cut corresponding to the cut after the Fig. 8 with a partially inserted cover;

Fig. 10

a section after the line XX after the Fig. 7 ;

Fig. 11

an exploded perspective view of a plug in another embodiment;

Fig. 12

a perspective view of the plug after the Fig. 11 in assembled state before insertion

Fig. 13

tion in a socket or in a profile bore of a wall; a perspective view of the inserted into the socket plug;

Fig. 14

a perspective view of the inserted into the socket connector in the locked position.

The connection system has a socket 1 and a plug 2, which may be formed as a mechanical fastening member 2a or as an electrical connector 2b. Like from the Fig. 3 can be seen, the mechanical connector 2a has a thumb wheel 3 on its side facing away from the connection side. In addition, the thumb wheel 3 may be provided with a fixing member in the form of an eyelet or a hook (not shown). An essential feature of both connector types is the training for a bayonet connection with the socket 1. For this purpose, the plug 2 in its front part a round part 4, from the circumferentially opposite two cams or lugs 5 protrude. In the case of the electrical connector 2b 5 contact elements 6 are arranged on the outside or on the circumference of the two lugs, which lead in the interior of the plug in a manner not shown to a connecting piece 7 of the plug 2b, from where corresponding cables not shown lead to a consumer.

For the implementation of a bayonet connection, the bushing has in its peripheral wall 20 opposite two axially extending introduction channels 8, which in their width and depth are adapted to the protruding lugs 5 of the plug. At the two axial introduction channels 8 close in the circumferential wall 20 extending in the circumferential direction locking channels 9 for a locking position (see FIGS. 7 and 10 ). The locking channels 9 can extend so that at the end of a recess in the form of a detent position results, in which the tabs 5 are in the end position in the indentation with the plug 2. In this way, a detent position against unintentional release is achieved. To release the plug 2, it is then only necessary to depress the plug a little further, so that it can be pulled out of the locking channels 9 and the introduction channels 8 at a corresponding counter-rotating movement again. Such a detent position can also be achieved by a slight oblique guidance of the locking channels 9 in the form of a rising ramp with a sloping end region.

From the Fig. 2 in conjunction with the FIGS. 7 to 10 the structure of the socket 1 is shown in more detail. The exploded view according to Fig. 2 shows a cover 10 with a pin 11 in which a longitudinal slot is arranged. The pin 11 can be inserted through a hole in a rear bottom 12 of the bushing 1, wherein a provided with the longitudinal slot arrow-shaped end 13 of the pin 11 is inserted with a corresponding compression through the hole. By the arrow-shaped end 13, which has a larger outer diameter than the shank of the pin 11, a retaining member for the cover 10 is provided in conjunction with the longitudinal slot, through which the pin 11 can be stuck in compression by the bore. The cover 10 is adapted in shape to the shape of the open end face 14 of the bush 1 and thus also has nose-like projections 15 on opposite sides, which are adapted to the recess 8. As in particular from the FIGS. 1 to 5 it can be seen, therefore, the open end face 14 of the socket 1 is covered, wherein the cover 10 is flush with the surface of the socket 1. A spring device 16 in the form of a spiral spring biases the cover 10 against the closed position, wherein the arrow-like end 13 forms a stop on the bottom 12 and prevents falling out of the cover 10. The spring-like device 16 is supported on the bottom 12 of the socket 1. In the peripheral wall 20 of the bushing 1 opposite mating contacts 17 are arranged in the locking channels 9. Of the mating contacts 17 lead from lines not shown to a power source. As shown in the exploded view according to Fig. 2 it can be seen, for assembly reasons, the housing of the bushing 1 in two parts, namely consisting of the peripheral wall 20 and a rear also round bushing part 18, which is inserted into the interior of the peripheral wall 20 and which also has the bottom 12.

As in particular from the FIGS. 8, 9 and 10 it can be seen, the bushing 1 has a relatively small overall depth and can be used completely or almost completely in a wall 19 surrounding the bushing.

As can be seen, the connection system with the socket 1 and the plug 2 can be used both as a mechanical fastening device and as an electrical connection device, depending on the plug type. The socket 1 takes both Plug types 2a and 2b. In the case of a mechanical connection device with the plug 2a, there is merely no electrical contact connection with the mating contacts 17.

The Fig. 8 shows the socket 1 with the cover 10, in which it is flush with the end face of the socket 1.

The FIGS. 9 and 10 show the position of the cover 10 when the plug 2 (not shown here) is placed on the socket 1.

Instead of a cable connection of the plug via the connecting piece 7 may optionally be placed directly on the electrical connector 2b and a consumer. This is from the Fig. 6 seen. In this case, the plug on its back a knurled nut 21, via which a connection with a consumer 22, not shown. The consumer 22, not shown, may for example be a mobile phone, a charger or even a small screen.

With the connection system according to the invention, it is also possible without much effort to create more than just two electrical contact connections. There are two possibilities for this purpose, namely a plurality of contact elements 6 and mating contact elements 17 arranged one behind the other in the plug 2b and in the socket 1 or else a plurality of contact elements 6 and mating contact elements 17 arranged in the plug 2b and arranged in the socket 1.

In an axial arrangement, the lugs 5 are correspondingly extend in the axial direction or according to several rows of lugs one behind the other in the round part 4 to be arranged (not shown). In this case, a plurality of at different axial heights located locking channels 9 are provided accordingly in the socket 1.

In the case of an arrangement in the circumferential direction, the locking channels 9 are to be lengthened correspondingly in the circumferential direction and likewise to be correspondingly provided with further counter-contact elements 17. In this case, a plurality of lugs 5 corresponding to the same axial height in the circumferential direction accordingly offset from each other to arrange (not shown).

In the FIGS. 11 to 14 an embodiment of the inventive connection system with a plug 2 'is shown in another embodiment.

In the following description, the same reference numerals are used for the same or like parts as in the above-described embodiment.

According to Fig. 11 the plug 2 'has a cam carrier 23, on the front end of which the bush 1' faces the round part 4 with the two opposing cams or lugs 5.

On the side facing away from the bush 1 'side of the cam carrier 23 is a locking member in the form of a Locking ring 24 which is pushed onto a cylindrical part of the cam carrier 23. At the sleeve 1 'facing the front wall portion of the locking ring 24 are opposite two axially protruding from the locking ring 24 locking cam 25. As can be seen, the two locking cam 25 offset by 90 degrees in the circumferential direction to the cams or noses 5. On the of the socket 1 'side facing away is a handle portion in the form of a handle ring 26. Between the handle ring 26 and the locking ring 24, a spring means in the form of a coil spring 27 is arranged.

The handle ring 26 has an inner bore into which a rotary member 28 is inserted with a transverse bore 29, wherein the rotary member 28 relative to the handle ring 26 is rotatable. A fastening member, for example a holding eye 30, is provided with a transverse part 31, which is guided by the transverse bore 29. The holding lug 30 serves for fastening parts which are to be secured, for example, in the trunk of a vehicle. Due to the rotatability of the rotary member 28 while the holding lug 30 can be positioned in any rotational position.

While the grip ring 26 is rigidly connected to the cam carrier 23, the locking ring 24 in the axial direction relative to the cam carrier 23 is displaceable. By the locking cam 25, which protrude into recesses 32 of a peripheral ring 33 of the cam carrier 23, however, a rotation or a common rotation of the cam carrier 23 and locking ring 24 is given.

The operation of the connection system with the plug 2 'after the Fig. 11 is described below based on the descriptions of FIGS. 12 to 14 seen.

In the first step, the plug 2 'is approximated to the bushing 1' so that the introduction channels 8 are aligned with the lugs 5. Due to the bias of the tensioned between the handle portion 26 and the locking ring 24 coil spring 27 of the locking ring abuts the peripheral ring 33 of the cam carrier 23, wherein the locking cam 25 in the direction of the sleeve 1 'forward through the recesses 32 through the peripheral ring 33rd protrude.

The Fig. 13 shows the position of the plug 2 ', in which the cams 5 have been pushed through the insertion channels 8 of the socket 1'. During the passage of the lugs 5 through the insertion channels 8, the locking cams 25 abut with their front sides on a wall 34 of the socket 1 ', which faces the plug 2'. Overcoming the bias by the spring 27, the locking ring 24 is pushed back during the insertion movement of the lugs 5 in the introduction channels 8. Once the lugs 5 are on the back of the wall portion 34 and thus the lugs 5 can be rotated in the circumferential direction, the handle ring 26 and thus also rigidly connected to it cam carrier 23 can rotate by a desired angle in the circumferential direction. The angle of rotation depends on the positioning of the locking cams 25 in relation to the lugs 5. Since the angular difference in the present case is 90 degrees, the handle ring 26 makes a corresponding rotational movement by the operator 90 degrees Degree. After completion of this rotational movement are thus the locking cam 25 in front of the introduction channels 8 and, since these correspond in shape and design to the channel shapes of the introduction channels 8, the locking cam 25 are pressed by the relaxing spring 27 in the insertion channels 8, whereby a lock and at the same time Anti-rotation is given (see Fig. 14 ). The cams 5, which look like from the FIG. 14 can be seen, offset by 90 degrees to the insertion channels 8, ensure that the plug 2 'can not be pulled out of the socket 1' in the axial direction.

To release the plug 2 'from the socket 1', it is only necessary to manually retract the locking ring 24 against the force of the spring 27 of the socket 1 'until the locking cam 25 come free from the introduction channels 8. Subsequently, the lugs 5 are brought back in front of the insertion channels 8 with a reverse rotation by 90 degrees and the plug 2 'can be pulled out.

Of course, the twisting motion in the form of 90 degrees is called only for example. In practice, other values are possible here as well.

The advantage of the embodiment with the plug 2 'with respect to the plug 2 described in the first place is, inter alia, that the socket 1' can be made much simpler. Practically, as a "socket" only a wall 34 is required, which is provided with a profile bore, which has recesses in the form of the introduction channels 8. This means if a sufficient wall thickness exists is, for example, at least 1 to 2 millimeters, the connection system according to the invention can be easily introduced into existing walls, for example in walls of a trunk in a vehicle at any point. If a sufficient wall thickness of the wall 34 is present or if it is correspondingly reinforced, it is also possible to attach heavy loads or secure heavy loads with the connection system according to the invention to the holding eye 30 of the plug 2 '.

Another advantage over the embodiment according to the FIGS. 1 to 10 it is also the fact that by the rotation of the rotary member 28 relative to the handle ring 26 connected to the rotary member 28 retaining eye 30 can remain unchanged in a rotation of the plug 2 'when inserted into the socket 1' to its locking in position. This means that it is not mitverdreht and parts located thereon or provided in place of the holding lug 30 consumers remain in their original position. In the embodiment of the FIGS. 1 to 10 will be in the Fig. 6 illustrated consumer 22 mittwreht when making the bayonet connection, which could lead to problems in the event of the need for a correct position arrangement of the consumer 22, the holding lug 30 or another connected to the holding lug 30 or with the plug 2 'self-connected part.

Cam carrier 23 and handle ring 26 can be rigidly connected to each other in any way. This can be done for example by a screw or gluing.

Claims (6)

1. Plug used in vehicle construction for connection to a socket inserted in a wall of a vehicle; wherein a bayonet connection is provided for connecting the plug and socket; wherein the plug (2) has at least one lug (5) arranged on its circumference; wherein said lug (5) can be introduced, for the purpose of producing the bayonet connection, into at least one axially extending lead-in channel (8) and at least one locking channel (9) belonging to the socket (1), adjoining said lead-in channel and extending in the circumferential direction, or can be rotated into a locking position which is located in the circumferential direction in relation to the at least one lead-in channel (8) and in a manner offset in relation thereto; wherein, in addition to lugs (5) arranged on a cam-carrier (23), at least one locking cam (25) is arranged on a locking part (24); wherein the at least one locking cam (25) is located so as to be offset in the circumferential direction in relation to the lugs (5); and wherein the cam-carrier (23) is connected to a gripping part (26) which is provided with a fastening member (30).
2. Plug according to claim 1,
   characterised in that
   the locking part (24) is constructed as a locking ring which is connected to the cam-carrier (23) so as to be torsion-proof but displaceable in the axial direction.
3. Plug according to claim 2,
   characterised in that
   the locking ring (24) is pre-tensioned in the direction of the cam-carrier (23).
4. Plug according to claim 1,
   characterised in that
   the gripping part (26) is constructed as a gripping ring, in the interior of which there is arranged a rotating part (28) to which the fastening member (30) can be fastened.
5. Plug according to claim 1,
   characterised in that
   the fastening member (30) is constructed as an eye or as a hook.
6. Connecting system having a plug used in vehicle construction according to one of claims 1 to 5,
   characterised in that
   the plug (2') can be introduced, with the aid of the at least one lug (5), into the at least one axially extending lead-in channel (8) of the socket (1'); wherein, after the at least one lug (5) has been passed through the at least one lead-in channel (8), the plug (2') is twisted in the circumferential direction; wherein the locking part (24) bears, when in an axially pushed-back position, against a wall (34) of the socket (1') that faces towards the locking cams (25); and wherein, after a rotation has been performed in the circumferential direction as far as a predetermined position, the at least one locking cam (25) is pushed into the at least one lead-in channel (8).

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