EP0741920B1 - Electrical connecting element of a two-part pin-and-socket connection - Google Patents

Description

The invention is directed to one or both connecting parts of one two-part electrical connector, the connecting parts of two have mutually complementary housing. One housing takes electrical contact parts, such as socket contacts, and is with a plug section provided that in the coupling case in a receiving section of the other housing is insertable. Because of its plug function this should Housing of the connector is referred to as "connector housing". The other housing assigned to it has a complementary receiving space for the plug section of the connector housing, which is why it is below should be called "socket housing" for short. This applies in the case of a coupling Plug housing with its plug section in the receiving section of the socket housing, which is why these mating ends of the Both connecting parts are referred to below as "coupling ends" should. The socket housing is used to hold electrical mating contact parts, e.g. B. in the form of plug contacts. For the contact or The associated housing has at least two pairs of counter-contact parts side by side, axial housing chambers, in which the each an electrical line connected contact or counter contact parts, from the side facing away from the coupling end of the housing, into the Housing chambers are introduced. The axial partition between the Housing chambers have the task of the two contact parts against each other isolate. With such a plug connection are in the coupling case the engaging contact and mating contact parts at least through the jacket of the receiving section from the socket housing to the outside well covered, which is why neither dirt nor water splashes the electrical Can affect contacting. DE-C-4 224 154 such a connector.

The housing of the known connector can have sealing problems bring out locking means for that of the contact parts in result in the housing chambers. For locking you use the known connectors a movable across the housing chambers Latch with profiled openings, in two positions in the housing can be locked. In a first locking position, which is referred to as the "pre-locking position" the opening profile of the bolt is the opening cross-section adapted to the housing chambers and allows the aforementioned axial insertion of the contact parts. In the second locking position, the "final locking position" the latch moves with its opening profile locks into the housing chambers and engages behind the contact parts radial shoulders. The mating contact parts are in the final locking position fixed in the housing chambers, which is why they are no longer pull out of the housing chambers in the opposite direction to their insertion movement to let.

This known locking of the contact parts in a defined axial position however, there are disadvantages in the housing chambers. Both for the arrangement and for the reversal of the bolt between its two rest positions require a corresponding amount of space required in the respective housing. If one leads the reversal movement of the bolt between its locking positions from the outside of the socket housing from, there arise the aforementioned sealing problems. Tries one reverses the bolt between its two rest positions relocating to the inside of the housing requires additional space either for moveable handles located on the bolt or for Channels required to insert external actuation tools. Around to be able to mount the known latch inside the housing, results finally the disadvantage of a multi-part design of the socket housing. The production of a multi-part housing is expensive and requires a time-consuming gradual assembly of the housing parts, to be able to arrange the latch between the housing parts.

The invention has for its object to provide a well-shielded from the outside, inexpensive electrical connector which in the preamble of Claim 1 to develop the kind that is convenient, reliable Reversal movement of a locking the counter-contact parts in the die part Slider allowed and still saves parts and space is trained. This is according to the invention by the in the characteristic of Claim 1 measures achieved, the following special Importance.

In the invention, the one located between the two housing chambers axial partition the additional new function, namely as a slide to lock the inserted contact parts. Hence the Space saved for an additional slide. It is sufficient for the invention it to make that part of the axial dividing wall detachable that is up to the radial shoulders serving as locking points of the in the housing parts inserted contact parts extends. This detachable Part of the axial partition wall is hereinafter referred to as "partition wall piece" be named. The partition wall piece has locking elements for the Contact parts radial protrusions.

It is already an ideal splash-proof location of this partition guaranteed because there is naturally between the two housing chambers, in the axis area, in the middle of the socket housing. Yet its handling is easy to carry out, because a z. B. from the recording room axial recess in the interior of the socket housing can be used, which lies between the two housing chambers. Apart from this partition wall piece, the entire housing can be in one piece be trained, which is why an expensive production of several housing parts and their time-consuming assembly is eliminated. The partition wall piece can, from the coupling end of the housing, by a simple Plug-in installation in the axial recess to the final full depth insert. The axial recess is used in the subsequent locking process at the same time as a guide for the partition wall piece. The partition wall piece is namely shifted parallel to the wall on the inner surfaces of the recess and the recess only needs a sufficient recess height to show. Is the partition wall axially into the axial recess been inserted, it is then moved perpendicularly to over the pre-locked position, shifted to its final locked position become.

The recess advantageously has an opening profile, the bounding one Wall parts already in the pre-locking position of the partition piece Cover radial projections at least in some areas towards the receiving space. The housing with the partition wall piece fixed in its pre-locked position then forms a prefabricated unit from captive, positionally secured Parts that can be delivered as a commercial product. In this The locking position of the partition piece narrows its radial projections not clear cross-section of the housing chambers, which is why the customers of these units even insert the contact parts into the housing can. Customers can choose the type and shape of the contact parts themselves and individually determine the electrical lines connected to it. To secure the defined axial position of the contact parts in the housing chambers The customers only need the partition wall piece from the coupling end from, e.g. B. from the recording room to move laterally until the Final locking position of the partition piece becomes effective. Only then grab the radial projections of the partition piece lock behind the radial shoulders of the inserted contact parts.

Fig. 1

in einem halben Längsschnitt die beiden, voneinander entkuppelten Verbindungsteile der erfindungsgemäßen elektrischen Steckverbindung nach ihrer Fertigstellung, wobei die Schnittführung anhand des einen, ein Buchsengehäuse betreffenden Verbindungsteils durch die versprungene Schnittlinie 1-1 von Fig. 8 veranschaulicht ist,

Fig. 2

in einer Explosionsdarstellung die Bestandteile des einen ein Buchsengehäuse aufweisenden Verbindungsteils von Fig. 1, wo das Buchsengehäuse im Axialschnitt längs der Schnittlinie II-II von Fig. 3 dargestellt ist, also in einer gegenüber dem Halbschnitt von Fig. 1 versetzten Längsebene,

Fig. 3

in einer gegenüber Fig. 2 vergrößerten Darstellung die Stirnansicht auf das Buchsengehäuse in Blickrichtung des Pfeils III von Fig. 2,

Fig. 4

in einer mit Fig. 3 entsprechenden Vergrößerung die Stirnansicht auf einen zweiten, in Fig. 2 gezeigten Bestandteil des dortigen Verbindungsteils, nämlich ein lösbares Trennwandstück, in Blickrichtung des dortigen Pfeils IV,

Fig. 5,

in einer gegenüber Fig. 3 und 4 weiteren Vergrößerung die Stirnansicht auf den Verbindungsteil von Fig. 2, wenn sich das Trennwandstück in einer "Einsteckmontagestellung" im Buchsengehäuse befindet,

Fig. 6,

in einer mit Fig. 5 übereinstimmenden Darstellung, eine "Vorraststellung" dieser beiden Bestandteile des Verbindungsteiles von Fig., 2,

Fig. 7,

in einer gegenüber Fig. 6 verkleinerten Darstellung, einen Horizontalschnitt durch die beiden vormontierten Bestandteile von Fig. 6 längs der dortigen horizontalen Schnittebene VII-VII,

Fig. 8,

wieder in einer mit Fig. 5 übereinstimmenden Stirnansicht, den fertigen Verbindungsteil von Fig. 2 aus den drei in Fig. 2 gezeigten Bestandteilen, wenn sich die Trennwand in ihrer "Endraststellung" befindet, und schließlich

Fig. 9,

in einem zwar mit Fig. 7 übereinstimmenden Horizontalschnitt, aber in starker Vergrößerung demgegenüber, einen mittleren Bereich des fertigen Verbindungsteils von Fig. 8 längs der dortigen Schnittlinie IXIX.

Further measures and advantages of the invention result from the following description and the drawings. In the drawings, the invention is shown in one embodiment. Show it:

Fig. 1

in a half longitudinal section the two, uncoupled connecting parts of the electrical plug-in connection according to the invention after their completion, the cut using the one connecting part relating to a socket housing being illustrated by the jumped cutting line 1-1 of FIG. 8,

Fig. 2

1, where the socket housing is shown in axial section along the section line II-II of FIG. 3, that is to say in a longitudinal plane offset with respect to the half section of FIG. 1, in an exploded view, the components of the one connecting part of FIG.

Fig. 3

in an enlarged view compared to FIG. 2, the front view of the socket housing in the direction of arrow III of FIG. 2,

Fig. 4

in an enlargement corresponding to FIG. 3, the front view of a second component of the connecting part shown in FIG. 2, namely a detachable partition wall section, in the direction of view of arrow IV there,

Fig. 5,

in a further enlargement compared to FIGS. 3 and 4, the end view of the connecting part of FIG. 2 when the partition wall piece is in a "plug-in mounting position" in the socket housing,

Fig. 6

5, a "pre-locking position" of these two components of the connecting part of FIG. 2,

Fig. 7,

6, a horizontal section through the two preassembled components of FIG. 6 along the horizontal sectional plane VII-VII,

Fig. 8,

again in a front view corresponding to FIG. 5, the finished connecting part of FIG. 2 from the three components shown in FIG. 2 when the partition is in its "final locking position", and finally

Fig. 9,

in a horizontal section that corresponds to FIG. 7, but in a large enlargement, a central region of the finished connecting part of FIG. 8 along the section line IXIX there.

The electrical connection consists of two couplable ones Connecting parts 10, 20, which, as Fig. 1 shows, both in terms of their electrical contact parts 11, 21 on both sides and also with respect to one another to be inserted coupling sections 14, 39 of their housings 13, 30 are complementary to each other. Any contact or counter contact part 11, 21 is connected to the conductor via a crimp connection or the like associated electrical line 12 or 22 connected in the coupling case of the two connecting parts 10, 20 electrically connected to one another in pairs should be. The housing 13 of the one connecting part 10 has as a coupling section a plug section 14, which, in the housing 30 of the other connecting part 20 a receiving section 36 with a is accordingly assigned profiled receiving space 31. Because of its plug function due to the plug section 14 is intended to be the housing of the first connecting part 10 in the following briefly "connector housing", however that of the second connecting part 20, because of the socket-like there Receiving section 36, abbreviated to "socket housing".

The contact part in the plug housing 13 advantageously consists of a socket contact 11, while the mating contact parts 21 in the socket housing 30 are designed as plug contact parts 21 which with a pin end 23 in protrude into the receiving space 31 there. The receiving space 31 is by a transverse to the longitudinal axis 33 of the housing 30 of FIG. 1 Bottom wall 32 opposite the end portion 34 of the socket housing 30 axially limited. The appearance of the bottom wall 32 is from the front view of the socket housing in Fig. 3, where openings 35 for passage the connector pins 23 can be seen. Through the bottom wall 32 is the housing 30 in the wide coupling portion 36 and a rear portion 34 structured. This rear section 34 of the socket housing 30 is radially offset from the preceding front section 36. As already mentioned, the two connecting parts engage in the coupling case 10, 20, the plug housing 13 with its plug section 14 in the Receiving space 31 of the socket housing 30. The connector housing 13 can, for better sealing, a coat recognizable from Fig. 1 15 have, which encloses the plug section 14 in the radial distance. Between the jacket 15 and the plug-in section 14 form an annular space, in which the receiving portion 36 of the socket housing 30 of the other Connecting part 20 can penetrate. In the case of coupling, when the connector pins 23 of the mating contact parts 21 in the socket contacts 11 of the connector housing 13 engage, the electrical contact points are on all sides to the outside shielded. If necessary, can also between the housings 13, 30 rubber seals are still used. To secure the clutch engagement can the housing 13, 30 of the two connecting parts 10, 20 over Snap connections or closings also mechanically connected be.

In the invention there is a special design of the connecting part 20, which, as can be seen from the exploded view of FIG. 2 is, apart from the counter-contact parts 21, only two further components consists, namely the already mentioned, one-piece socket housing 30 and a specially designed slider 40, which, as can be seen 7, the function of an insulating partition 38 in the socket housing 30 met. The partition 38 namely separates in the rear section 34 two axial housing chambers 37 lying parallel to one another, which each serve to insert the counter-contact parts 21. The Bores in the housing chambers 37 are stepped axially. In the present The case is, as the axial section of FIG. 2 shows, two pairs of such Housing chambers 37 arranged one above the other, which is why this connecting part 20, as evidenced by the end view of the fully assembled connecting part 20 of FIG. 6, a four-pole connecting part provided with four pin ends 23 20 is.

2, the counter-contact parts 21 of the Coupling end 69 facing away from the rear end 39 of the housing 30 in the associated housing chambers 37 axially inserted, as from the two there Insertion arrows 24 can be seen. As has already been mentioned the slider 40, as shown in FIG. 7, the function of a partition 38, in the extension of which he is finally ordered. The slider 40 is produced separately from the one-piece housing 30, forms that is, a "detachable section" of the partition which it is shown in FIG. 7 or 9 axially extended to the bottom wall 32 in the socket housing 30. Because of This special function is therefore briefly the slider 40 below "Partition wall" are called. This partition wall piece 40 has 2 and 4, a special axial and radial profile. This Adapted to the profile of the partition wall piece 40 is the socket housing 30 one running in the inner region between the two housing chambers 37 Axial recess 50.

The partition wall piece 40 is initially divided into a flat wall part 41, a U-shaped guide rail 43 on its upper longitudinal edge 42 has, which is widened relative to the thickness of the wall part 41.

The opening profile of the associated axial recess 50 accordingly comprises as can be seen from the front view of FIG. 3, one of the Thickness of the wall part 41 from the partition 40 adapted vertical Slit 51, the, compared to the height 44 of the partition wall section shown in FIG. 4 40 determines a greater height 54 of the axial recess 50. 3, the axial recess 50 has at its top Slot end 52 a channel-shaped corresponding to the outline of the guide rail 43 Extension 53.

2, the wall portion 41 with a widened, but axially extending control pin 45 which extends over the outer edge 49 of the wall surface 41 extends and one in use control function to be described in more detail finally fulfilled. On the opposite inner edge 48 has the partition wall piece 40 two radial projections 46, 47 arranged at a distance from one another which correspond to the Height difference between the two above-mentioned pairs of Housing chambers 37 corresponds. Like a comparison between Fig. 4 and 3 shows, the axial recess 50 has correspondingly in these areas enlarged axial channel parts 56, 57. This leaves the following, from Fig. 2 and 5 recognizable assembly of the socket housing 30 with the partition wall piece 40 to.

In Fig. 5 is a "plug-in mounting position" of the partition 40th before, which is determined by the contour 61 in Fig. 5. This contour line 61 should by the respective position of the upper longitudinal edge 42 of the partition 40 be determined. In the position shown in Fig. 5 lies this partition wall longitudinal edge 42 slidably at the upper slot end 52 of the housing-side axial recess 50, which then serves as a guide surface serves if the partition wall piece 40 in the sense of that shown in FIG. 2 Insert arrow 17 from the inside of the receiving space 31 of the socket housing 30 is inserted into the axial recess 50. According to Fig. 2 takes place namely, the upper slot end 52 has an axial extension on the inner surface of the receiving section 36. An axial insertion of the partition piece 40 in the axial recess 50 is possible for the following reason.

5, the radial projections 46, 47 lie in the opening profile the previously described extended channel parts 46, 47, as well as the widened one Guide rail 43 from the partition wall section 40 shown in FIG. 3 channel-shaped extension 53 lies. The vertical slot 51 forms together with the extensions and extensions 53, 56, 57 an insertion channel, which can be seen up to that from FIG. 2, but also from FIG. 9 Recess base 59 of the axial recess 50 extends. Behind this Recess reason 59 begins, as shown in FIG. 9, the partition fixed to the housing 38. The insertion 17 of the detachable partition 40 is then ends when its inner edge 48 on the recess base 59 to the plant is coming. This insertion position of the partition wall piece 40 'is dash-dotted in FIG. 2 illustrated. In this inserted position, as at 16 'in Fig. 2, the control pin can be seen in the receiving space 31.

The above-described height position 61, which can be seen in FIG. 5, of the partition wall piece 40 can also be supported by resting positions. So owns the partition wall piece 40 latching-locking parts 18, which can be seen in FIG. 2 and 4, in the present case radially, on both sides of the guide rail 43, are arranged and each consist of a latch. As related Locking counter-locking parts serve two ribs 28, 29, which are adjacent Determine recesses. These recesses define the Latch 18, the respective height of the partition 40 in the axial recess 50. The two locking ribs 28, 29 are on the rear inner surface the channel-shaped extension 53 is formed in the socket housing 30. The aforementioned "plug-in mounting position" of the partition 40 results the fact that the latch 18 there above the first locking rib 28 is arranged.

From this position shown in Fig. 5, the partition piece can now 40 parallel to its axial wall part 41 in the sense of that shown in FIG. 5 Cross movement arrow 19 are moved. The axial recess is used here 50 as a guide for the partition wall piece. This is because of the lesser Height 44 of the partition wall piece 40 compared to that shown in FIG. 3 Axial recess height 54 possible. 5 recognizable lower longitudinal edge 45 is at a large height distance 64 from the corresponding one lower slot end 55 of the axial recess 50. The transverse displacement 19 of the partition wall piece 40 is advantageously carried out fully automatically. This is done using an assembly tool, which is already the axial one Insert movement 17 has completed. This tool exercises in the sense of 6 a defined displacement, the to a deformation of the cooperating locking-locking or counter-locking parts 18, 28 leads. As a result, as shown in FIG. 6, it reaches the part of the partition 40 located locking lug 18 in the locking groove between the two Locking ribs 28, 29 of the housing. It is a so-called "pre-locking position" of the partition piece 40 reached, which in Fig. 6, in an analogous manner 5, is determined by the now lower contour line 62. The partition wall piece 40 has closer with its lower longitudinal edge 45 moved to the lower slot end 55, which is why now only one medium height distance 65 is given.

It is crucial in this pre-locking position 62 of FIGS. 6 and 7 that the radial projections 46, 47 on both sides, as indicated by dashed lines in FIG. 6 can already be seen from wall parts 67, 68 to the receiving space 31 of the socket housing 30 are covered. This can be done in the Preliminary position 62 brought partition 40 not again, in the opposite direction pull out to the insertion arrow 17 of FIG. 2, axially. The partition wall piece 40 is therefore also secured in its axial position. 6 are at the same time the outlines of one provided on the mating contact part 21 according to FIG. 2, section 70 of box-shaped design indicated here. How from 6, the retracted areas narrow the radial projections 46, 47 the housing chambers in the pre-locking position 37 not yet. Therefore, the axial insertion movement described above 24 of the contact parts 21, according to FIG. 2, into which can also be seen from FIG. 7, Dash-dotted axial position 21 'of the counter-contact parts at the chamber end easily possible. It is crucial that by the locking engagement 18, 28, 29 the partition wall piece also fixed in its transverse mobility 19 is. There is a preassembled unit recognizable from FIGS. 6 and 7 60 before, which the manufacturer placed on the market as a finished commercial product can be.

This prepared assembly 60 can now, as with reference to FIGS. 6 and 7 can be seen by the customer with the desired mating contact parts 21 and the selected electrical lines connected to it 22 can be equipped. For this purpose, the counter-contact part 21 is in its from Fig. 7 apparent dash-dotted, axial end position 21 'brought by Stops in the area of the bottom wall 32 to the coupling end 69 of the housing 30 out is fixed. In this end position, which is shown in full lines in Fig. 1, resilient tongues provided on the contact part engage 25 behind undercut bevels 58, located on the inner surface the longitudinally profiled housing chamber 37. This is the axial position of the contact parts 21 to the rear end 39 of the housing 30. Above and below those mentioned for receiving the plug pins 23 Openings 35 in the bottom wall 32 are, as best shown in FIG. 3, too recognize smaller openings 71 is provided. These breakthroughs 71 arise when tools are inserted into an injection molding machine of the housing 30 serving mold to inside of the housing chambers 37 the undercuts mentioned in the run-up slopes 58 to generate. On the electrical line 22 in the area of Mating contact part 21 is a sealing ring 26 which, according to 1, the clear opening of the housing chamber 37 to the rear end 39 of the socket housing 30 seals.

By a further transverse displacement 19 of the partition wall piece 40 finally reaches a final locking position shown in FIGS. 8 and 9, which is illustrated in FIG. 8 by a contour line 63. The detent 18 is under deformation of the material under the second locking rib 29 from Housing arrives. There is only a minimal height difference 66 between them the lower longitudinal edge 45 of the partition wall piece 40 and the lower slot end 55 of the recess 50 in front. Now, as if by the dashed lines 8, the two-sided radial projections 46, 47 of the partition piece 40 driven behind the box sections 70 of the contact parts 21 and grip behind radial shoulders 27 there, as best shown in FIG. 9 can be seen. Now the contact parts 21 are in their axial end position secured.

In the final locking position of the partition wall piece 40, the one mentioned also takes axial control pin 16 a defined height in the receiving space 31st one with a complementary control recess that is not recognizable in the housing 13 of the other connecting part 10 of FIG. 1 axially is aligned. This signals the correct position of all components. Only in this case can the two connecting parts 10, 20 Plug axially into one another. Otherwise, when e.g. B. still the pre-locking position 6 should be present according to FIG. 6, the front end of the control pin 16 not yet with the control recess mentioned in the other connecting part 10 aligned, which is why an axial insertion of the two Connecting parts 10, 20 is impossible.

Reference symbol list:

10th

Connecting part

11

Contact part of 10, socket contact

12th

electrical wire for 11

13

Housing, connector housing from 10

14

Coupling section of 13, plug section

15

Coat at 14

16

axial control pin

16 '

Insert position from 16 in 30

17th

Insert arrow from 40 in 30

18th

Locking strikers from 40, locking lug

19th

Cross Arrow of 40

20th

Connecting part

21

Contact part of 20, plug contact

21 '

axial end position of 21

22

electrical wire for 21

23

End of donation of 21

24th

axial insertion arrow of 21 (FIG. 2)

25th

spring tongue on 21

26

Sealing ring at 21, 22

27

radial shoulder of 21

28

Locking counter-locking part, first locking rib

29

Locking counter-locking part, second locking rib

30th

Housing, socket housing

31

Recording room in 36

32

Bottom wall of 31

33

Longitudinal axis of 30

34

offset rear section of 30

35

Breakthrough for 23 in 32

36

Coupling section of 30, receiving section

37

Housing chamber in 30

38

Partition between 37

39

Rear end of 30

40

Partition piece

40 '

full insertion position of 40 (Fig. 2)

41

Wall part from 40

42

upper longitudinal margin of 40, marginal zone

43

Guide rail at 40

44

Height of 40

45

lower longitudinal margin of 40

46

upper radial projection of 40

47

lower radial projection of 40

48

Inner edge of 41

49

Outer edge of 41

50

Axial recess in 30

51

Insert channel, vertical slot of 50

52

top slot end of 51

53

channel-shaped expansion at 42, insertion channel

54

Height of 50

55

lower slot end of 51

56

extended channel section for 46, plug-in channel

57

extended channel section for 47, plug-in channel

58

Run-up slope in 37

59

Notification reason of 50

60

Unit of 30, 40

61

first contour line for plug-in installation

62

second contour line for pre-locking position

63

third contour line for final stop position

64

large height distance between 45, 55 (Fig. 5)

65

average height distance between 45, 55 (Fig. 6)

66

minimum height distance between 45, 55 (Fig. 8)

67

effective wall part at 50 for 46

68

effective wall part at 50 for 47

69

Coupling end of 20

70

Box section of 21 (Fig. 2)

71

Breakthrough in making 58

Claims (8)

1. Electrical connecting portion (20, 10) of a two-part plug-in connection with a housing, such as a plug housing (13) or a socket housing,

   wherein the ends (69) of the two housings (13, 30) which can be plugged one into the other comprise complementary coupling sections (14, 36) such as a plug-in section (14) on the plug housing or a receiving section (36) in the socket housing (30),

   and the housing (30) of the connecting portion (20) comprises at least two axial chambers (37) located adjacent to each other in pairs, between which is located an axial partition (38),

   and electrical contact portions (21) each connected to a line (22) such as socket contacts (11) or plug-in contacts (21) can be introduced into the housing chambers (37) axially as far as a predefined end position (21') and extend into the coupling section (36),

   and with a slide (40) comprising locking elements in the housing (30), which is transversely movable in the housing between the preliminary latch position (62) and a final latch position (63),

   wherein the locking elements in the final latch position (63) of the slide engage behind radial shoulders (27) on the contact portions (21) and lock the contact portions (21) in their axial end position (21') in the housing chambers (37),

   but in the preliminary latch position (62) allow axial introduction (24) of the contact portions (21) into the housing chambers (37),

   characterised in that the slide consists of a releasable section (40) of the axial partition (38), which has radial projections (46, 47) serving as locking elements,

   and in that the housing (30) between the two housing chambers (37) comprises an axial recess (50) opening towards the coupling end (69) of the housing (30) with an opening profile which allows axial insertion assembly (17) of the partition section.
2. Connecting portion according to claim 1, characterised in that the latch-action transverse movement (19) of the partition section in the housing (30) takes place perpendicularly to insertion assembly (17), in the direction of the height of the axial recess (50), and in that the height (54) of the axial recess (50) extends from the position (61) of the partition section during insertion assembly thereof, beyond the preliminary latch position (62) thereof, at least as far as the final latch position (63).
3. Connecting portion according to claim 1 or 2, characterised in that the axial recess (50) serves to guide the partition section parallel to the walls during transverse movement thereof (19).
4. Connecting portion according to one or more of claims 1 to 3, characterised in that the radial projections (46, 47) of the assembled partition section already in the preliminary latch position (62) are covered from the coupling end (69) of the housing (30) by wall portions (67, 68) which surround the opening profile of the axial recess (50).
5. Connecting portion according to one or more of claims 1 to 4, characterised in that the axial recess (50) extends between several housing chambers (37) of the housing (30) located in pairs one above the other

   and the partition section comprises several radial projections (46, 47) offset in height from each other,

   which in the final latch position (63) engage behind the radial shoulders (27) of the various contact portions (21) in the corresponding housing chambers (37).
6. Connecting portion according to one or more of claims 1 to 5, characterised in that the latch closing portions (18) on the partition section are arranged in the axial edge zone (42) which faces away from the direction of its latch-action transverse movement (19),

   and the latch counter closing portions (28, 29) are arranged in the interior of the axial recess (50) in the region of an axial channel which serves for insertion assembly (17) of the partition section.
7. Connecting portion according to one or more of claims 1 to 6, characterised in that the partition section has a check pin which in case of fully assembled insertion (40') extends axially in the coupling section (36) of the housing (30),

   and with which is associated a complementary check recess in the coupling section of the housing (13) of the other connecting portion (10),

   and the check recess only in the final latch position (63) of the partition section is axially aligned with the check pin (36) and allows full insertion of the two connecting portions one in the other.
8. Connecting portion according to claim 7, characterised in that the check pin (36) extends in axial extension of the partition section.

Images