EP1851830A1

EP1851830A1 - Connection system, in particular electrical connection system

Info

Publication number: EP1851830A1
Application number: EP06723071A
Authority: EP
Inventors: Klaus Pfeiffer
Original assignee: Magcode AG
Current assignee: Magcode AG
Priority date: 2005-02-23
Filing date: 2006-02-21
Publication date: 2007-11-07
Anticipated expiration: 2026-02-21
Also published as: US8079855B2; CN101133521B; CN101133521A; US20090023315A1; EP2367235A1; US7866992B2; JP2008538442A; EP1851830B1; DE502006008223D1; US20110028020A1; JP4881326B2; EP2367235B1; WO2006089715A1; ATE487251T1; DE202005002921U1

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

Connection system, in particular electrical connection system

The invention relates to a connection system, in particular an electrical connection system, with a plug and 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.

In vehicle construction, in particular in motor vehicle construction, mechanical and, above all, electrical connection systems are increasingly also 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 does not interfere both in the installed state and when not in use. According to the invention, this object is achieved in that the bayonet connection in the socket has at least one axially extending insertion channel and at least one adjoining circumferentially offset thereto lying locking position, said provided for connection to the plug end face of the socket is covered with a cover which is arranged so adjustably in the socket that when placing the plug through this opening the opening for the preparation of the connection is released.

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 allows the socket when not in use in a disturbing manner in the environment surrounding the socket or adapt it accordingly. For example, it can be installed in a vehicle wall or loading floor. At the same time a dirt-proof cover for the electrical contacts is created so that their operation is not affected even with prolonged use.

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 socket can be 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 subclaims and from the following Based on the drawing principle described embodiments.

It shows:

Fig. 1 is a perspective view of the socket according to the invention;

Fig. 2 is an exploded view of the socket of FIG. 1;

3 is a perspective view of a plug as a mechanical fastening member.

Fig. 4 is a perspective view of an electrical connector;

Fig. 5 is a perspective view of a socket with an electrical connector;

Fig. 6 is a perspective view of an electrical connector with a connector for a consumer;

7 shows a cross section through the bush according to FIG. 1;

Fig. 8 is a section along the line VIII-VIII of Fig. 7;

9 shows a section corresponding to the section of Figure 8 with a partially inserted cover ..; 10 is a section along the line XX of FIG. 7;

11 is an exploded perspective view of a plug in another embodiment;

Fig. 12 is a perspective view of the connector of Figure 11 in the assembled state prior to insertion into a socket or in a profile bore of a wall.

Fig. 13 is a perspective view of the inserted into the socket connector;

Fig. 14 is 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. As can be seen from FIG. 3, the mechanical plug 2a has a knurled disk 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 on the outside or on the circumference of the two lugs arranged in the interior of the plug in a manner not shown to a connecting piece 7 of the plug 2b lead from where corresponding cables not shown lead to a consumer.

To carry out a bayonet connection, the bushing has in its peripheral wall 20 opposite two axially extending insertion channels 8, which are adapted in their width and depth 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 Figures 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 Fig. 2 in conjunction with Figures 7 to 10, the structure of the socket 1 is shown in more detail. The exploded view of 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 by squeezing through 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 can be seen in particular from FIGS. 1 to 5, the open front side 14 of the bushing 1 is thus covered, with the cover 10 being flush with the surface of the bushing 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 is apparent from the exploded view of FIG. 2, the housing of the bushing 1 is in two parts for assembly reasons, 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 the bottom 12th having.

As can be seen in particular from FIGS. 8, 9 and 10, the bushing 1 has a relatively small overall depth and can be inserted completely or almost completely into 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 accommodates 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.

FIG. 8 shows the bushing 1 with the cover 10, in which it is flush with the end face of the bush 1.

Figures 9 and 10 show the position of the cover 10 when the plug 2 (not shown here) is placed on the bush 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 can be seen in FIG. 6. 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 axial direction in the plug 2b and in the socket 1 or even more Distributed on the circumference in the plug 2b and arranged in the socket 1 contact elements 6 and mating contact elements 17th

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 extended correspondingly in the circumferential direction and likewise to be provided correspondingly 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).

FIGS. 11 to 14 show an exemplary embodiment of the connection system according to the invention with a plug 2 'in another embodiment.

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

According to FIG. 11, the plug 2 'has a cam carrier 23, at 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 sleeve I ¹ side of the cam carrier 23 is a locking member in the form of a locking ring 24 which is slid onto a cylindrical portion 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 'of FIG. 11 will be apparent from the description of Figures 12 to 14.

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 member 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.

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. As soon as the lugs 5 are located on the rear side of the wall part 34 and thus the lugs 5 can be rotated in the circumferential direction, the handle ring 26 and thus also the cam carrier 23 rigidly connected to it can be rotated 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 are arranged as shown in Figure 14, 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 is present, for example of 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 of Figures 1 to 10 is also that by the rotation of the rotary member 28 relative to the handle ring 26 connected to the rotary member 28 holding eye 30 at a rotation of the plug 2 'when inserted into the socket 1' whose lock can remain unchanged 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 according to FIGS. 1 to 10, the consumer 22 shown in FIG. 6 is also twisted during manufacture of the bayonet connection, which in the case of the necessity of a correct arrangement of the consumer 22, the holding eye 30 or another connected to the holding eye 30 or the plug 2 'self-connected part could cause problems.

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

claims

1. Connection system, in particular electrical connection system, with a plug and with a socket, wherein a bayonet connection is provided for the connection of plug and socket, as you rchge ke nn zei chn et that the bayonet connection in the socket (1) at least one axial extending insertion channel (8) and at least one adjoining circumferentially offset thereto lying locking position, said for connection to the plug (2) provided end face (14) of the socket (1) with a cover (10) is covered, in such a way is adjustably arranged in the socket (1) that when placing the plug (2) through this opening the opening for the preparation of the compound is released.

2. The connection system according to claim 1, characterized in that the locking position is formed by a locking channel extending in the circumferential direction (9).

3. Connection system according to claim 1, characterized in that the plug (2) has at least one nose (5) arranged on its circumference, which each have an electrical contact (6) when the plug (2b) is designed for electrical connection on its outer circumference, in a connection with one in the locking channel (9) or at the locking position arranged mating contact (17) of the socket (1) cooperates.

4. Connection system according to claim 1, 2 or 3, d a du c h e c e n e c e s in that the cover (10) is at least approximately flush with a free end face (14) of the socket (1).

5. The connection system according to one of claims 1 to 4, characterized in that the cover (10) under pretensioning covers the end face (14) of the bushing (1).

6. Connection system according to claim 5, characterized in that a spring device (16) is tensioned between the rear floor (12) of the bushing (1) and the rear side of the cover (10).

7. A connection system according to any one of claims 1 to 6, since it is ge ch ng e s e s that the cover (10) with a retaining member (11,13) is provided.

8. A connection system according to claim 7, characterized in that the retaining member has at least one pin (11) which can be latched in the bushing (1).

9. Connection system according to one of claims 1 to 8, characterized in that the locking channel (9) is provided at its end with a detent position.

10. Connection system according to claim 9, characterized in that the detent position is formed by a ramp-like rise of the locking channel (9) with a waste at the end or by a depression in the locking channel (9) at the end of the rotary movement.

11. A connection system according to any one of claims 1 to 10, since you ch e n c e e s that the plug (2 a) is designed as a fastening member.

12. A connection system according to claim 3, wherein a plurality of contact elements (6) and mating contact elements (17) are arranged one behind the other in axial direction in the plug (2b) and in the socket (1).

13. A connection system according to claim 3, wherein a plurality of contact elements (6) and mating contact elements (17) distributed in the plug (2b) and in the socket (1) are arranged on the circumference.

14. Connection system according to claim 1 to 13, characterized in that the plug (2b) is provided with a connecting member (21) for direct connection to a consumer (22).

15. Connection system according to claim 14, characterized in that the connecting member is formed as a knurled nut (21).

16. Connection system according to one of claims 1 to 15, GE ke nn zei chn et du rch a use in a vehicle, in particular a motor vehicle, wherein the bush (1) at least approximately flush in a vehicle wall (19) or a bottom part of the vehicle is.

17. Plug for connection to a socket, wherein for the connection of plug and socket a bayonet connection is provided, since you r ch nel zei chn et that the plug (2) has at least one arranged on its circumference nose (5) in that the nose (5) can be inserted into at least one axially extending insertion channel (8) and at least one adjoining circumferentially extending locking channel (9) of the bushing (1) or in a circumferential direction to the at least one introduction channel (8). 8) offset to lying locking position can be screwed.

18. Plug according to claim 17, since you rchge ke nn zei chn et that at least one nose (5) is provided which in training the plug (2b) for electrical connection on its outer circumference each having an electrical contact (6), the when connected to one each in the locking channel (9) or at the locking position arranged mating contact (17) of the socket (1) cooperates.

19. Plug according to claim 18, characterized in that a plurality of contact elements (6) are arranged one behind the other in the axial direction in the plug (2b).

20. Plug according to claim 18, characterized in that a plurality of contact elements (6) distributed in the periphery

Plug (2b) are arranged.

21. Plug according to claim 17, e e c e n e c e e t d u r c h an education as a fastening member.

22. Plug according to claim 17, e e c e n e c e n e t d u r c h an education with a connecting member (21) for direct connection with a consumer.

23. A plug as claimed in claim 17, characterized in that, in addition to lugs (5) arranged on a cam support (23), at least one locking cam (25) is arranged on a locking part (24), the at least one Locking cam (25) offset in the circumferential direction to the lugs (5).

24. Plug according to claim 23, since you do not see ze, that the locking part (24) is designed as a locking ring which is rotatably connected to the cam carrier (23), but slidably connected in the axial direction.

25. A plug according to claim 24, characterized in that the locking ring (24) is biased in the direction of the cam carrier (23).

26. Plug according to claim 24 or 25, characterized in that the cam carrier (23) is connected to a handle part (26), wherein the locking ring (24) between the cam carrier (23) and the handle part (26) is arranged.

27. Plug according to claim 26, characterized in that the grip part (26) is designed as a grip ring, in the interior of which a rotary part (28) is arranged, to which a fastening member (30) can be fastened.

28. A connection system with a socket according to one of claims 1 to 15 and a plug according to one of claims 17 to 23, characterized in that it can be seen that the plug (2 ') is connected to the at least one lug (5). in which at least one axially extending insertion channel (8) of the bush (1 ^? ) is insertable, wherein after passing the at least one lug (5) through the at least one introduction channel (8) the plug (2 ') is twisted in the circumferential direction, wherein the locking part (24) in an axially retracted position against a wall (34) of the bushing (I ¹ ) facing the locking cam (25), and in which the at least one locking cam (25) enters the at least one insertion channel after rotation in the circumferential direction to a predetermined position (8) is inserted.