EP0757409B1 - Electrical connector - Google Patents

Description

The invention relates to a connector with a Pin connector housing containing pin contacts to which a multi-chamber socket housing with electrical Lines connected socket contacts can be plugged on and can be locked by means of a snap connection, so that the Pin contacts with the socket contacts electrically in Be connected, the pin header housing has an annular wall which has a cover cap completely overlaps and on the front in a circumferential Recess of the socket housing is, the cover cap on the plug contact side of the socket housing with im Contact area existing openings sits and where that Pin header housing at least one hook on it Has outside, which in an opening of the Socket housing engages.

Such a connector is e.g. from US-A-4,784,617 known.

Furthermore, from US-A-5 085 599 a connector known, with a cover that is orthogonal to Plug direction can be pushed onto the contact housing and Snap elements to secure the contacts within the Has contact housing.

However, this cover must first in the direction of insertion End of the housing to be pushed on afterwards shifted by a small piece orthogonal to the direction of insertion to be able to.

The problem with these known solutions is relative complicated structure and inadequate securing of the Socket contacts inside the socket housing.

The present invention is therefore based on the object to specify a lockable connector that stands out is characterized by a simple compact structure and a effective securing of the socket contacts within the Socket housing enables and if necessary by additional Insertion of sealing elements can be carried out watertight can.

a) daß das Buchsengehäuse mindestens zwei von federnden Innenwandungen, die an ihren distalen Enden mit Rasthaken versehen sind, getrennte Kammern und an seiner Außenwandung Öffnungen aufweist,

b) daß die Abdeckkappe orthogonal zu der Steckrichtung auf das Buchsengehäuse aufschiebbar ist und eine zwischen die federnden Innenwandungen des Buchsengehäuses greifende T-förmige Rippe aufweist, wobei das T-förmige Endstück der Rippe Kanten der Buchsenkontakte hintergreift, und

c) daß die Abdeckkappe an ihrer Außenwandung Rastelemente aufweist, welche beim orthogonalen Aufschieben der Abdeckkappe auf das Buchsengehäuse in die Öffnungen der dortigen Außenwandung greifen.

This object is achieved in a connector of the type mentioned at the outset by

a) that the socket housing has at least two chambers separated from resilient inner walls, which are provided with latching hooks at their distal ends, and has openings on its outer wall,

b) that the cap is slidable orthogonally to the direction of insertion on the socket housing and has a gripping between the resilient inner walls of the socket housing, the T-shaped rib, the T-shaped end piece of the rib engaging behind edges of the socket contacts, and

c) that the cover cap has latching elements on its outer wall, which engage in the openings of the outer wall there when the cover cap is orthogonally pushed onto the socket housing.

In such connectors there is one relatively small design, thanks to the provided snap connections securely lockable and thanks the orthogonal to the direction of insertion on the socket housing pushed cover cap with the provided there Locking elements against unwanted pulling out of Socket contacts including connected cables from the Socket housing secured.

According to feature a) on the resilient inner walls provided snap hooks form the primary fuse for the Contacts.

According to feature b), the cover cap that can be pushed on orthogonally one between the resilient inner walls of the bushings housing-engaging T-shaped rib, the T-shaped End piece of the rib the edges of the socket contact engages behind. The T-shaped end piece of the rib thus forms an independent secondary backup for those in the Socket housing inserted socket contacts.

An unwanted pulling out of the lines or loosening the Plug connection is not or only under extreme Exertion of force possible, so that the connector after the Invention best for use as an electrical clutch in the Automotive technology is suitable. Finally, the Connector according to the invention, without being structurally changed need to be added by adding sealing elements, especially a sealing plate and two sealing rings waterproof and dustproof.

In a development of the invention it is provided that Socket housing approximately on one of its broad sides has a latching lever with an opening in the middle, which overlaps the wall of the pin header housing that its snap hook snaps into the opening. The Snap connection and the locking achieved thereby of the socket housing with the pin header housing and thus with the plug part and socket part of the connector be solved by applying a predetermined force the end of the locking lever opposite the snap connection is pressed, making the locking lever slightly above the Snap hook of the socket housing is lifted and so that Pin header housing or the socket housing are removed can. The lever stroke necessary for this is expedient dimensioned so that no overextension of the preferably Plastic existing hinge on the locking lever on Socket housing is attached, is possible. Preferably one rib is attached to each side of the locking lever, a possible pinching of the cables under the Prevent locking lever.

Another development of the invention provides that the Locking lever the annular wall of the pin header housing overlaps about half the length. This will be a Relatively long locking lever provided on the only one end opposite the snap connection low lever stroke required to the snap connection to solve.

According to another development, the socket housing can the invention on its side facing away from the plug side be covered with a cover cap, the cover cap snapped onto the socket housing by means of a snap connection is. The cover cap and the socket housing are expediently coordinated with one another and with openings and locking hooks provided that the lid cap in one first position and in a second position, 180 degrees twisted, position snapped onto the socket housing is. By simply turning the cap on one Side has an opening for cable entry, can thus the cable outlet of the connector on the left or right side can be realized. This will be a high degree of flexibility of the connector according to the invention reached. Furthermore, such a connector easy to manufacture, no matter whether the cable outlet on the left or to be arranged to the right of the connector, only a single injection mold for the socket housing or associated cap is necessary.

The socket housing can be turned away from the plug side Side a holding plate with openings inserted through which the electrical lines for the Socket contacts are inserted. This holding plate serves as Guide for the lines and holds them thanks to the provided Openings at a distance from each other.

The socket housing is preferably with three rows lying next to one another Provide chambers, being in the middle Row and an outer row the socket contacts by 180 Degrees are rotated to each other. In the remaining one third row can short-circuit bridges for short-circuiting of the adjacent socket contacts in the middle row be arranged. The aforementioned T-shaped rib of the cover cap secures the socket contacts of the middle chamber and the Socket contacts in the adjacent outer chamber.

Another development of the invention provides that Pin header housing facing away from the connector side Provide end faces with protrusions of different lengths on which the pin contacts are at least partially apply and at the end of the protrusions each in the same Are angled 90 degrees. This measure allows easy installation of the pins in the pin header housing. The pin contacts are on the protrusions on so that they are effectively protected from damage.

The connector presented so far can be simplified Make dustproof and waterproof by several Sealing elements arranged within the connector become.

The socket housing is expediently provided with a sealing plate provided through which the lines for the socket contacts are led. Furthermore, in front Extension of the walls of the cover cap a sealing ring be arranged, which between the annular wall the pin header housing and a peripheral wall of the Socket housing is arranged. The sealing plate fulfills the Function that both the lines to which the socket contacts are connected, as well as the individual chambers of the Socket housing are sealed.

Furthermore, the pin contacts are expedient through the pin header housing waterproof by the Pin contacts, for example, in the pin header housing are pressed in or are encapsulated after assembly.

In order to be able to mount the pin header housing in a watertight manner, expediently the outer wall of the pin header housing provided with an annular groove in which a further sealing ring is arranged.

Figur 1

Den Steckverbinder nach der Erfindung in auseinandergebautem Zustand in Draufsicht auf die einzelnen Komponenten,

Figur 2

das Buchsenteil des Steckverbinders nach der Erfindung mit Buchsengehäuse, auf das Buchsengehäuse aufgeschobene Abdeckkappe sowie aufgeschnappter Deckelplatte,

Figur 3

den in Figur 2 dargestellten Buchsenteil entlang der Schnittlinie A-A von Figur 2,

Figur 4

das Stiftleistengehäuse in Schnittdarstellung mit eingesetzten Stiftkontakten,

Figur 5

den kompletten Steckverbinder nach den Figuren 1 bis 4 in zusammengestecktem Zustand in Schnittdarstellung und

Figur 6

einen weiteren Steckverbinder ähnlich zur Darstellung von Figur 1.

The invention is explained in detail below on the basis of a specific exemplary embodiment in connection with several figures. Show it:

Figure 1

The connector according to the invention in a disassembled state in plan view of the individual components,

Figure 2

the socket part of the connector according to the invention with a socket housing, a cover cap pushed onto the socket housing and a snapped-on cover plate,

Figure 3

the socket part shown in Figure 2 along the section line AA of Figure 2,

Figure 4

the pin header housing in a sectional view with inserted pin contacts,

Figure 5

the complete connector of Figures 1 to 4 in the assembled state in a sectional view and

Figure 6

another connector similar to the illustration of Figure 1.

Designate in the following figures, unless otherwise indicated, same reference numerals, same parts with the same Importance.

In Figure 1 is an embodiment of a connector shown in plan view according to the invention, the disassembled individual components of the connector one above the other are shown. The connector points a pin header housing 1 acting as a plug part, which contains an annular wall inside a large number of pin contacts which cannot be seen in FIG. 1 is arranged. At his in Figure 1 the viewer facing broadside is the wall of the pin header housing 1 with a snap hook 10 to be explained Mistake. This snap hook 10 sits approximately in the middle half the width of the pin header housing 1. From the plug side opposite end of the pin header housing 1 protrude A large number of pin contacts 2, each parallel to one another arranged and at their lower end each in the same Angled 90 degrees in the drawing plane are. The ends of these pin contacts 2 protrude corresponding openings 13, preferably made of insulating material, for example ceramic or ferrite material Guide 5. This guide is for the mechanical Construction of the connector is not absolutely necessary, however advantageous for its electromagnetic shielding. The pin contacts 2 cannot with the in Figure 1 recognize the pin contact ends for example on a Circuit board of an electrical circuit arrangement soldered become. Furthermore, the pin header housing 1 with a provided annular groove in which a sealing ring 12th is arranged.

The socket part of the connector shown in Figure 1 consists essentially of a socket housing 30, the a cover cap 20 on its side facing the plug side is put over and from a cap 70, which the Socket housing 30 snapped onto the opposite side becomes. Between the cover cap 70 and the socket housing 30 is even closer in the following figures presented holding plate 62 arranged with openings 63rd is provided for pushing through electrical lines. On the broadside of the socket housing 30 facing the Holding plate 62 is preferably a sealing plate 60 to to make the connector watertight.

In addition, the cover cap 70, socket housing 30 and cover 20 existing socket part of the connector according to the invention sealing in the pin header housing 1, a sealing ring 50 is provided, of the lower part of the Socket housing 30 is pushed so far that the lower part of the socket housing 30 from the sealing ring 50 emerges. It then becomes orthogonal to the direction of insertion of the connector cap 20 protruding on this slid lower part of the socket housing 30.

The socket housing 30 points towards the viewer in FIG broadside facing one in the middle extending to the direction of insertion of the connector Locking lever 39 on the one facing the plug side End is provided approximately in the middle with an opening 36. The Locking lever 39 is approximately a quarter of the entire width of the Socket housing 30 wide and two integrally molded Web 47 with a circumferential collar 34 of the socket housing 30 connected. The locking lever 39 can be pivoted about these webs 47 be turned away from the mating side End of the locking lever 39 is pressed. This will Locking lever 39 with its end facing the plug side raised so that the opening 36 when plugged together Connector from the snap hook 10 of the pin header housing 1 is lifted off.

In addition, part of the Socket housing 30 arranged a further locking hook 37, the with an associated opening 71 of the cap 70 as Snap connection interacts. On the one facing away from Figure 1 Broad side of the socket housing 30 is also a Locking hook 37 arranged with a corresponding second Opening in the lid cap 70 as a snap connection cooperates so that the connector according to the invention equipped on the left or right side with a cable outlet 80 can be.

As FIG. 1 also shows, the cover cap 70 is in the middle provided with a U-shaped cutout 72 so that the Cover cap 70 can be snapped onto the socket housing 30, without covering the locking lever 39 of the socket housing 30.

FIG. 2 shows the assembled socket part of the one in FIG. 1 presented connector shown. It is clear that Snap the locking hook 37 into the associated opening 71 the cap 70 can be seen. In addition, it is clear that the lid cap 70 thanks to its U-shaped cutout 72 den Locking hook 39 not covered. The cap 20 is under previously pushing on the sealing ring presented in Figure 1 50 on the lower part of the socket housing 30 the socket housing 30 shown pushed.

In the embodiment of Figure 2, the socket part instructs a cable outlet 80 on its right side. This Cable exit 80 also has a cable fixation 81, through which the individual lines of the cable outlet 80 are held.

In Figure 3, the socket part shown in Figure 2 is in Sectional view along section line A-A of Figure 2 shown. The already known reference numerals are there again for the same parts. As can be seen, the Socket part from a multi-chambered socket housing 30, the in the present embodiment, three rows of chambers 31 has. The individual rows of the chambers 31 are parallel arranged to each other. In the top in Figure 3 Chamber 31 shown is a socket contact 40, z. B. a contact spring, inserted by a face Opening of a pin contact 2 of the pin header housing 1 is contactable. The socket contact 40 is over a Contact zone 41 with an electrical line 42 in connection. In the middle chamber 31 of the socket housing 30 is a similar socket contact 40 with contact zone 41 and connected line 42. The two socket contacts 40 are rotated 180 degrees to each other. The Socket contacts 40 have recesses facing one another 48 on, in which for primary locking latching hook 33 from engage resilient inner walls 45 of the socket housing 30. These locking hooks 33 form the primary fuse for the Socket contacts 40. In the bottom chamber 31 of the Socket housing 30 is a known short-circuit bridge 55 used, which with unmounted connector, d. H. the plug part is not placed on the socket part, adjacent socket contacts 40 for security reasons shorts. This short circuit is shown in FIG shown by a bulge 56 of the short circuit bridge 55 the contact zone 41 of the middle socket contact 40 contacted. For this is in between the bottom Contact chamber 41 and the middle chamber 41 a Partition 49 of the socket housing 30 used, which in Area of the recess 56 of the short-circuit bridge 55 with a Breakthrough 51 is provided.

To secure the short-circuit bridge 50 and the According to the invention, socket contacts 40 become a cover cap 20 with cup-shaped outer contour over the to the mating side facing part of the socket housing 30. This is done by a direction orthogonal to the direction of insertion Slide the cover cap 20 on the right in Figure 3 shown part of the socket housing 30. The cover cap 20th has on its end facing the plug side Openings 24, which in the assembled state with the openings of the socket housing 30 are aligned. The outside and over the socket housing 30 slipped walls of the cover cap 20th are provided with secondary hooks 23 which extend into the interior the socket housing through openings provided there extend. When the cover cap 20 is pushed on, an in Attempted detachment of the cap 20 from Socket housing 30 excluded. Furthermore, it is Cover cap 20 provided with a T-shaped rib 21, the between the resilient inner walls 45 of Socket housing 30 slides and with its T-shaped end forms a hook 22 behind the contours of the upper Socket contact 40 and lower socket contact 40 engages. The T-shaped rib 21 is so with its longitudinal leg designed that the resilient inner walls 45 with their am distal end arranged locking hooks in the mentioned Openings 48 of the socket contacts 40 can grip. This Locking hooks 33 are used for primary locking of the socket contacts 40.

Securing the socket contacts 40 within the chambers 41 of the socket housing 30 thus takes place in three ways. The Primary fuse of the socket contacts 40 is by the elastic pivoting back of the resilient inner walls 45 of the Socket housing 30 manufactured. In a release check, at which the force is determined, which is the primary locking endures, the corresponding test would be without a cover cap 20 respectively.

By pushing the cover cap 20 on orthogonally then on the one hand mechanically checked whether all resilient Inner walls 45 are pivoted back (dependent Secondary backup or "backup backup") and on the other hand through the T-shaped end piece of the rib 21 of the cap 20 established an independent secondary fuse.

The cover cap 20 is intentionally not designed so that it presses the resilient primary latching hooks 33 into the socket contacts 40. If a primary latching hook 33 does not spring into the recess of a socket contact 40 by itself, this is generally due to the fact that the socket contact 40 is not completely inserted. This error should be noted, inter alia, that the cover cap 20 cannot be pushed on without the use of force.

As shown in FIG. 3, the socket housing 30 has one on the Wall 46 of the socket housing 30 integrally molded L-shaped collar 34, which around the socket housing 30th walks around. This is L-shaped collar 34 in cross section approximately at the level of the transition from the contact zone 41 to the Lines 42 arranged by there the wall 46th First an orthogonal one from the outer wall of the socket housing 30 part of the wall that jumps away, which then turns into one that jumps back towards the plug side of the connector straight part ends. This results in a the socket housing has a U-shaped recess running around the outside, into which, as will be explained later, the ring-shaped Wall of the pin header housing 1 when plugged together Connector engages.

The opposite of the collar 34 of the socket housing 30 inner wall section 46 has an L-shaped recess 53 in which the sealing ring 50 known from FIG. 1 is inserted. This sealing ring 50 lies with his inner ring surface flat on the outside of the L-shaped cut Wall 46 of the socket housing 30. Furthermore is the sealing ring 50 with its left in Figure 3. shown end face also on the L-shaped cut wall 46 on. On the collar 34 of the socket housing 30 facing outer ring surface of the sealing ring 50 is a, in Cross section seen bulbous bulge arranged, which, as will be explained in connection with FIG. 5, is in contact with the pin header housing 1 for sealing purposes. The sealing ring 50 has approximately a height at its front end on the height of the L-shaped recess of the wall 46 corresponds to the socket housing 30. As from Figure 3 further can be seen, the sealing ring 50 on its right end from the front wall of the cover cap 20 limited. The L-shaped wall 46 of the socket housing forms together with the front wall of the cover cap 20 a U-shaped recess into which the sealing ring 50 in can be easily inserted and adjusted.

As can be seen further from Figure 3, the socket housing 30 in axial extension of the rib 21 a in cross section seen U-shaped wall 38 on which the chambers 41 the socket contacts 40 limited.

The socket housing 30 is also ring-shaped Wall 54 provided, which is opposite to the direction of insertion approximately on the wall 46 of the socket housing 30 extends further and which is provided with openings 58, to accommodate a holding plate 62. The holding plate 62 has also openings 63 to the lines 42 for the To be able to pass socket contacts 40.

On the surface of the holding plate facing the plug side 62 a sealing plate 60 is arranged adjacent to the to seal the lines 42 and the chambers 41 of the Socket housing 30 is used. The sealing plate 60 consists of a suitable, flexible plastic material and has preferably on its circular outer surface several, here two, ribs. For assembly reasons it is annular wall 54 in the area of the sealing plate 60 L-shaped cut out inside so that the sealing plate 60 in this recess can sit.

On the side of the ring-shaped side facing away from the plug-in side Wall 54 of the socket housing 30 are locking hooks 37 on the outside molded in one piece. These locking hooks 37 act with openings the cap 70 together so that the cap 70th can be snapped onto the socket housing 30. The locking hooks 37 and openings 71 are designed so that the lid cap 70 also rotated by 180 degrees on the socket housing 30 can be snapped on.

As can also be seen from FIG. 3, the socket housing provided with the already known locking lever 39, which itself over the collar 34 of the socket housing 30 in both directions extends. Furthermore, that is also already explained Opening 37 for latching mounting of the pin header housing 1 recognizable.

In Figure 4 is the sectional view of the pin header housing 1 shown. The pin header housing 1 has a plate-like Soil 13, of which is on a surface Extend pot-shaped walls 8 away. This is a Plug side open cavity 7 is formed, in which the pin contacts 2 protrude with their pin contact tips 3. In addition protrudes into this slot 7, a plug body 9, which is in one piece is molded onto the bottom 13 of the pin header housing 1 and the to break the short-circuit connection by the Short-circuit bridge (see FIG. 3) with the socket contacts is produced, serves.

On the outside of the pot-shaped wall 8 is a snap hook 10 arranged, which for snap connection to the socket housing 30 is provided.

The pin contacts 2 are preferably waterproof through the Bottom 13 of the pin header housing 1 out. This can for example, by pressing the pin contacts 2 or a Molded around the pin contacts 2. The bottom 13 has on its side facing away from the slot 7 three different long projections 11, whose top in Figure 4 Surface shown for guiding the pin contacts 2 serves. The pin contacts 2 lie on these projections 11 flat on to the ends of the projections 11 by 90 degrees each angled in the same direction, here down his. The projections 11 are just long enough that the pin contacts angled by 90 degrees next to each other come to rest and by drilling a guide, preferably a ceramic or ferrite guide 5 can be.

In addition, the annular groove in the pin header housing is in FIG 1 in which a sealing ring 12 is inserted.

Figure 5 shows the connector previously presented in mated condition. The pin header housing 1 is together with the pin contacts 2 contained in it Socket housing 3 inserted. The snap hook 10 comes in the Opening 36 of the locking lever 9 to lie and thus ensures a Secure connection of pin header housing 1 and socket housing 2. By lightly pressing the one with the reference symbol P provided end portion of the locking lever 39 can this snap connection can be released in a simple manner.

In addition, the function of the plug body 9 can be seen. The plug body 9 of the pin header housing 1 engages behind the short-circuit bridge 55 and lifts the bulge 56 there from the contact zone 41 of the socket contact 40, whereby the short circuit is released.

Furthermore, it can be clearly seen in FIG. 5 that the front part of the cup-shaped wall 8 of the pin header housing 1 in the through the wall 46 and the collar 34 of the Socket housing 30 formed space of the socket housing engages and the ring seal 50 on the provided there Bulge presses in the radial direction.

The connector according to the invention is preferably for Suitable for use as a connector in the automotive industry because it by a very small design, by a safe Lockability and when using the sealing elements mentioned characterized by its waterproof design. Of further the connector according to the invention is through a double contact lock, namely a primary lock and a secondary lock that is separate from each other work independently, provided.

For the sake of completeness, there is another one in FIG Embodiment of a connector according to the invention shown. The representation largely corresponds to that Representation of Figure 1. In contrast to the representation of Figure 1 now has the cap 70 but two openings 71 on. The socket housing 30 is also with two with the mentioned openings 71 of the cap 70 cooperating Locking hook 37 provided, which are on each side left and to the right of the locking lever 39. After all, this is Socket housing 30 both on the right and left with a molded tubular and serving as cable exit 80 Provide extension so that a 180 ° without further ado twisted construction of the connector is possible.

Claims (12)

1. A plug connector having a pin header housing (1) which contains pin contacts (2) and onto which a multi-chamber female housing (30) having receptacle contacts (40) attached to electrical lines (42) can be pushed and locked by means of a click-in connection so that the pin contacts (2) are brought into electrical connection with the receptacle contacts (40), the pin header housing (1) having an annular wall which reaches completely over a covering cap (20) and lies with its end face in a peripheral recess in the female housing (30), the covering cap (20) being seated on the plug contact side of the female housing (30) with openings (24) in the contact region, and the pin header housing (1) having at least one hook (10) on its outer side which reaches into an opening (36) in the female housing (30),
      characterised in that the female housing (30) has at least two chambers (31), which are separated by resilient inner walls (45) provided at their distal ends with latching hooks (33), and openings on its outer wall, in that the covering cap (20) may be pushed onto the female housing (30) at right angles to the direction of plugging in, and has a T-shaped rib (21) reaching between the resilient inner walls (45) of the female housing (30), the T-shaped end piece of the rib (21) reaching behind edges of the receptacle contacts (40), and in that the covering cap (20) has on its outer wall latching elements (23) which, when the covering cap (20) is pushed at right angles onto the female housing (40), reach into the openings there in the outer wall.
2. A plug connector according to Claim 1, characterised in that the female housing (30) is provided on one of its long sides, approximately centrally, with a latching lever (39) which has an opening (36) and reaches over the wall of the pin header housing (1) such that the click-in hook (10) of the latter can click into the opening (36).
3. A plug connector according to Claim 2, characterised in that the latching lever (39) reaches over the annular wall of the pin header housing (1) approximately to the extent of half its length.
4. A plug connector according to one of Claims 1 to 3, characterised in that the female housing (30) is covered on its side remote from the plugging-in side by a lid cap (70), and in that the lid cap (70) clicks onto the female housing (30) by means of a click-in connection (37, 41).
5. A plug connector according to one of Claims 1 to 4, characterised in that there is secured in the female housing (30) on the side remote from the plugging-in side a holding plate (62) having openings (63) through which the electrical lines (42) for the receptacle contacts (40) are pushed.
6. A plug connector according to one of Claims 1 to 5, characterised in that the multi-chamber female housing (30) has chambers (31) lying in three rows next to one another, and the receptacle contacts (40) are arranged such that they are fumed through 180 degrees relative to one another in the middle row and one outer row, and short-circuiting links (55) for short-circuiting the adjacent receptacle contacts (40) are arranged in the remaining, third row.
7. A plug connector according to one of Claims 1 to 6, characterised in that the pin header housing (1) is provided on the side remote from the plugging-in side with projections (11) of different lengths against which the pin contacts (2) abut at least in part and are angled off by 90 degrees in the same direction at the end of the projections (11).
8. A plug connector according to one of Claims 1 to 7, characterised in that the female housing (30) is provided on the end face remote from the plugging-in side with a sealing plate (60) through which the lines (42) for the receptacle contacts (40) are guided.
9. A plug connector according to one of Claims 1 to 8, characterised in that a sealing ring (50) is arranged as an end-face extension to the walls of the covering cap (20) and is arranged between the annular wall of the pin header housing (1) and a wall (46) of the female housing (30) which runs peripherally in the interior of the plug connector.
10. A plug connector according to one of Claims 1 to 9, characterised in that the pin contacts (2) are guided through the pin header housing (1) in water-tight manner.
11. A plug connector according to one of Claims 1 to 10, characterised in that the pin header housing (1) is provided with an annular peripheral groove in which a sealing ring (12) is arranged.
12. A plug connector according to one of Claims 1 to 11, characterised in that the lid cap (70) and the female housing (30) are provided with openings (71) and latching hooks (37) which allow the lid cap (70) to be clicked onto the female housing (30) in a first clicking-on procedure and a second clicking-on procedure turned through 180 degrees.

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