EP3613110A1

EP3613110A1 - Assembly for a plug connector part with a contact insert and a grounding element

Info

Publication number: EP3613110A1
Application number: EP18719124.2A
Authority: EP
Inventors: Dennis Sprenger; Manuel TÜNKER; Thomas Wolting; Piotr Krzyzaniak; Krzysztof ZIENTEK
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2017-04-18
Filing date: 2018-04-18
Publication date: 2020-02-26
Anticipated expiration: 2038-04-18
Also published as: JP7174713B2; DE102017108162A1; CN110546823B; JP2020518099A; WO2018192962A1; DE202018006882U1; CN110546823A; EP3613110B1

Abstract

The invention relates to an assembly for a plug connector part (1, 3) comprising a plug housing (10, 30) and a contact insert (2, 4) which can be connected to the plug housing (10, 30) and which has an insulating body (20, 40) that consists of an electrically insulating material, forms a plug section (206, 406) which can be connected to a mating plug connector part (3, 1) in a plugged manner along a plug-in direction (E), and is arranged on the at least one electric contact element (22, 42) for electrically contacting a paired mating contact element (42, 22) of the mating plug connector part (3, 1). Additionally, a grounding element (23, 24, 25, 43, 44) is provided which is arranged on the insulating body (20, 40) and has a housing contact section (231, 242, 252, 431, 442) and is electrically connected to a grounding contact element (220, 230, 420, 430) arranged on the plug section (206, 406) in order to contact the mating plug connector part (4, 2) in a grounding manner, wherein the housing contact section (231, 242, 252, 431, 442) is designed to electrically contact the plug housing (10, 30) when the contact insert (2, 4) is connected to the plug housing (10, 30). In this manner, a plug connector part assembly is provided which simply and inexpensively allows the use of a plug housing made of metal.

Description

Assembly for a connector part with a contact insert and a grounding element

The invention relates to an assembly for a connector part according to the preamble of claim 1.

Such an assembly comprises a connector housing and a contact insert which can be connected to the connector housing and which has an insulating body consisting of an electrically insulating material. The insulating body forms a plug-in portion, which is connectable along a plug-in direction with a mating connector part. In addition, one or more electrical contact elements, for example in the form of contact pins or contact bushes, which serve for electrical contact with associated mating contact elements of the mating connector part and plug-in connection of the connector part and the mating connector part are in contact with the mating contact elements on the insulating body.

The use of different, modular insulating in a connector housing a connector part allows the provision of very different connector parts with completely different mating faces and very different kind of contact elements.

While in simple, lightweight connector parts, the connector housing can be made of plastic, it may be advantageous to use metal connector housing, in particular for heavy, particularly stressed in use connector parts. If a plug housing made of metal is used, however, care must be taken to ensure that electrical conductivity on the plug housing does not lead to disadvantages and possible safety risks, for example when an overvoltage occurs.

In one known from DE 20 2006 003 204 U1 connector part, a contact insert is arranged in a connector housing to which a ground contact element (so-called PE contact) is provided. In one known from DE 10 2010 022 690 A1 connector part an insulating body is enclosed in a connector housing. On the insulator is a Ground terminal contact element arranged, which is connectable via a contact plate with the connector housing.

From DE 10 2012 016 725 A1 a connector part with a contact insert is known, which has a module frame for receiving contact modules. On the module frame, a ground contact element is arranged.

Object of the present invention is to provide an assembly for a connector part available that allows a simple, inexpensive way to use a metal connector housing.

This object is achieved by an article having the features of claim 1.

Accordingly, the assembly has a grounding member disposed on the insulator body having a housing contact portion and being electrically connected to a mating portion grounding contact member for mating contact with the mating connector portion, wherein the housing contact portion is configured to electrically contact the connector housing when the contact insert connected to the connector housing.

Thus, when the contact insert is inserted into the connector housing, the connector housing is pulled into the ground. This is done via the grounding element, which on the one hand has a housing contact section for electrically contacting the plug housing and on the other hand is electrically connected to a ground contact element, so that an electrical connection exists between the plug housing and the ground contact element via the grounding element. The grounding contact element, to which a grounding line may be connected, comes in mating connection of the connector part and the mating connector part in grounding contact with the mating connector part, so that there is a same ground potential at the connector part and the mating connector part.

The insulating body is preferably integrally molded, for example, from a plastic material. The insulating body is electrically insulating and in this way isolates the contact elements arranged on it from the plug housing, which is preferably formed from an electrically conductive metal material. By using the grounding element can be done in a simple manner grounding contact with the connector housing. For example, the contact can be made automatically when inserting the contact insert into the connector housing, so that no additional assembly steps for the preparation of grounding contact are required.

In one embodiment, the earthing contact element extends along the plug-in direction and, when plug-in connecting the plug connector part and the mating plug connector part, contacts one another along the plug direction with an associated mating contact element of the mating plug connector part. When plugging in the connector part and the mating connector part, the earthing contact element thus runs on an associated mating contact and establishes an earthed contact via it. In one embodiment, the housing contact section extends over a plane extending transversely to the plug-in direction. The housing contact portion thus provides a contact surface available, which rests flat when the contact insert inserted on the connector housing and produces an electrical contact of the grounding element with the connector housing.

At least one attachment point for mechanical attachment of the contact insert to the connector housing can be arranged on the housing contact section according to a further embodiment. The housing contact portion is used in this case not only for electrical contacting of the grounding element with the connector housing, but also for mechanical attachment of the contact insert with the connector housing.

The housing contact portion may be formed, for example, as a flange and protrude from the insulating body. Thus, on the one hand, the electrical contacting of the grounding element with the plug housing and, on the other hand, the mechanical attachment of the contact insert in the plug housing can take place via the housing contact section.

The housing contact portion may be arranged in another embodiment, in the region of a transversely extending to the insertion direction, with the connector housing supportively engageable mounting portion of the insulator. The attachment portion of the insulating body can be used, for example, as a heel (for example in Form of a step) may be formed on the insulating body and may be supported in inserted into the connector housing contact insert on the connector housing, so that a mechanical attachment of the contact insert in the connector housing can be made via the attachment portion. Characterized in that the housing contact portion is arranged in the region of the fastening portion, it is ensured that when inserted into the connector housing contact insert, an electrical contact between the housing contact portion of the grounding element and the connector housing. The housing contact portion may be formed in this case, for example, as a flange and attached to the mounting portion of the insulating body. It is also conceivable that the housing contact portion is embedded, for example, in the mounting portion of the insulating body.

Completely different variants of the grounding element and of the grounding contact element connected to the grounding element are conceivable and possible.

In a first variant, the contact element, for example, take over the additional function of a coding. Under a coding is a form of the male portion of the connector part to understand, which ensures that the connector part can be connected only in a predetermined position and orientation plugged with the mating connector part. Such a coding can be made for example by longitudinally along the plug-in direction extended webs, which are arranged unevenly distributed on the plug-in portion and force it over a positionally correct and orientation correct attachment of the connector part to an associated mating connector part.

If the earthing contact element assumes an additional function for the coding, then - in the case of what is known as a male connector part - the grounding contact element may extend on an outer side of the plug-in section and protrude transversely to the plugging direction to provide the coding of the plugging section. In this case, the ground contact element preferably extends along the plug-in direction on the plug-in section, so that the ground contact element forms a protruding web on the outside of the plug-in section which, when plugged in, is to be engaged with an associated counter-coding on the side of the mating plug connector part.

Alternatively, in a so-called female connector part - the grounding contact element also on an inner side of the plug-in portion in the region of Be arranged coding. Again, the ground contact element is part of the coding and may for example extend between radially inwardly projecting webs on the plug portion. In this variant, the grounding contact element is, for example, integrally formed on the grounding contact element, so that the grounding contact element extends, for example, in the shape of a pencil from the grounding element along the plug-in section.

In another variant, the ground contact element is bordered by the plug-in section. In this case, the grounding contact element is arranged, for example, as a separate element to the grounding element within the plug-in section and, for example, held mechanically at the plug-in section, for example latched to the plug-in section. The grounding contact element may be formed in this case, for example, as a contact pin or as a contact socket and, when plugged connecting the connector part and the mating connector part together, in electrically contacting connection with an associated mating contact element of the mating connector part.

In this case, the earthing element is used for the electrical connection of the earthing contact element arranged inside the plug-in section and the plug housing surrounding the insulating body. The grounding element may, for example, have a contact portion for electrical connection to the ground contact element, which is connected to the housing contact portion via a connection portion. The contact portion is in electrical connection with the ground contact element and may, for example, have an opening through which the ground contact element engages. The connecting portion has, for example, the shape of a current bar, which produces an electrically conductive connection between the contact portion and the housing contact portion of the grounding element.

In one embodiment, in this case the contact portion relative to the connecting portion and / or the connecting portion relative to the housing contact portion may be angled. While, for example, the housing contact portion extends flat along a plane extending transversely to the plug-in direction, the connection portion may, for example, be along a plane that extends through the plug-in direction and a transverse direction transverse to the plug-in direction is stretched. The connecting portion may also be kinked and / or bent several times.

For example, the connecting portion may extend between the housing contact portion and the contact portion and engage around a body portion of the insulating body, for example, a body portion on which one or more contact elements of the contact insert are held. The housing contact portion may extend, for example in the manner of a flange transversely to the direction of insertion. The connection portion may, for example, make a connection between the housing contact portion and the contact portion and above with the ground contact element in the manner of a current bar.

In one embodiment, the contact portion, via which the grounding element is connected to the ground contact element, formed elastically resilient and is electrically contacting the ground contact element. The contact portion is thus formed in the manner of an elastic spring tongues and serves to establish an electrical contact between the grounding contact element and the grounding element. The grounding element can, for example, have two, for example, mutually opposite contact sections which receive the grounding contact element between them and thus produce an electrical contact with the grounding contact element. In another embodiment, two grounding elements are provided, each having a housing contact portion and a connected via a connecting portion with the housing contact portion contact portion and are arranged, for example, on opposite sides of the insulating body. The grounding elements in this case contact the grounding contact element in common, in that the contact sections of the grounding elements receive the grounding contact element between them and in this way produce an electrical contacting of the grounding contact element with both grounding elements.

Each grounding element can be arranged with its housing contact portion on a mounting portion of the insulating body and be supported on the associated attachment portion. In one embodiment, the grounding element is attached as Ansetzteil to the insulating body of the contact insert. In the attached position, the grounding element is for example held in a form-fitting manner on the insulating body. In another embodiment, the grounding element may be encapsulated by the (plastic) material of the insulating body, in which case the housing contact portion for contacting with the plug housing and also the contact portion for contacting with the ground contact element exposed so that an electrical contact can be made. The grounding element is thus inserted in the manufacture of the insulating body in an injection mold and encapsulated by injection molding of material.

In yet another embodiment, the grounding element can also be manufactured as a metal injection molded part on the insulating body. Such a metal injection molded part can be manufactured directly on the insulating body by injecting a metal alloy into a recess on the insulating body. For this purpose, for example, a eutectic alloy with a low melting temperature can be used. Alternatively, such a metal injection molded part can be prefabricated and then overmolded or encapsulated with (plastic) material to form the insulating body.

As another manufacturing method which may be used to fabricate the grounding member, there is also considered a metal powder injection molding (MIM) method in which a fine metal powder is mixed with an organic binder and molded. By subsequent sintering, the grounding element is compressed, so that a solid metal component of high density is obtained, which can then be overmoulded with the material of the insulating body.

In yet another embodiment, the grounding element can be arranged on a cover element connected to the insulating body. The cover may for example be attached to one end of the insulating body, which faces away from the plug portion, and may for example be positively connected to the insulating body, for example via fastening tabs which are latchingly connected to the insulating body. About the cover, for example, contact elements can be held on the insulating body and supported relative to the insulating body. The grounding element can in this case be held in a form-fitting manner between the cover element and the insulating body. For this purpose, the grounding element can for example be accommodated on the cover element in such a way that, when the cover element is attached to the insulating element, the grounding element comes to rest between the cover element and the insulating body and is thus held in a positionally fixed manner relative to the insulating body.

Alternatively, the grounding element may, for example, be encapsulated by the material of the covering element. The cover is made in this case by injection molding (plastic), wherein in the injection molding, the grounding element is inserted into an injection mold and encapsulated by the material of the cover.

The grounding element may, for example, protrude transversely to the direction of insertion to the cover element, so that the housing contact section of the grounding element protrudes laterally and can come into contact with an inner wall of the plug housing when the contact insert is inserted into the connector housing.

In a specific embodiment, the grounding element can have, for example, a connecting section extending transversely to the plug-in direction, on which the housing contact section and a contact lug arranged on the connecting section are arranged for electrical connection to the grounding contact element. The connecting portion realizes in this case a current bar for the electrical connection of the housing contact portion and the contact lug. The contact lug is supporting in contact with an associated grounding contact element, so that via the contact lug an electrical contact with the grounding contact element is made.

In an advantageous embodiment of the housing contact portion is elastically resilient transversely to the insertion direction. This can in particular enable a sliding of the housing contact portion on an inner wall of the plug housing during insertion of the contact insert into the plug housing, with electrical contacting of the housing contact portion with the plug housing.

The assembly is preferably part of a connector part, in particular a heavy connector part for use in stressed environments. By selecting from very different contact inserts this case, a connector part can be created in a modular manner, in a dedicated way a particular Use adapted and has a suitable mating face with an array of contact elements.

The idea underlying the invention will be explained in more detail with reference to the embodiments illustrated in the figures. Show it:

Fig. 1 is a view of a contact insert for a connector part, according to a first embodiment; Fig. 2 is a view of a grounding element of the contact insert;

3 shows a view of an embodiment of a contact insert complementary to the contact insert according to FIGS. 1 and 2 for a connector part;

Fig. 4 is a view of a grounding element of the contact insert;

Fig. 5 is a view of a contact insert for a connector part, according to another embodiment;

Fig. 6 is a view of a grounding element of the contact insert;

Fig. 7 is another view of the contact insert; Fig. 8 is a view of a contact insert for a connector part, according to yet another embodiment;

Fig. 9 is a view of a grounding element of the contact insert; Fig. 10 is another view of the contact insert;

Fig. 1 1 is a view of yet another embodiment of a

Contact insert; Fig. 12 is a view of yet another embodiment of a

Contact insert; Fig. 13 is a view of a grounding element of the contact insert;

14 shows a schematic view of two connector parts which can be connected to one another in a plug-in manner along a plug-in direction:

Fig. 15 is a view of yet another embodiment of a

Contact insert;

Fig. 16 is a view of the contact insert according to FIG. 15, in assembled

Status;

Fig. 17 is a view of yet another embodiment of a

Contact insert; Fig. 18 is a view of the contact insert of FIG. 17, in assembled

Status;

Fig. 19 is a view of yet another embodiment of a

Contact insert;

Fig. 20 is a view of the contact insert of FIG. 19, in assembled

Status;

Fig. 21 is a view of yet another embodiment of a

Contact insert;

Fig. 22 is a view of the contact insert according to Fig. 21, in assembled

Status; and Fig. 23 is a separate view of a grounding element of the contact insert.

14 shows a schematic view of two connector parts 1, 3, which can be connected to one another in a plug-in direction E.

Each connector part 1, 3 has a connector housing 10, 30, in each of which a contact insert 2, 4 is received with contact elements arranged thereon. Via a cable outlet 1 1, 31 is in each case a cable 12, 32 to the connector housing 10, 30th connected and electrically connected within the plug housing 10, 30 with the contact elements of the respective associated contact insert 2, 4.

It should be noted at this point that the present invention can be used not only in connector parts with manually operated connector housings, but also, for example, in electrical equipment, such as a cabinet, provided connectors can be used in which a contact insert, for example, on a device wall, For example, a control cabinet wall is set.

1 and 2 show a first embodiment of a contact insert 2, which is to be used to form a connector part 1 in a connector housing 10 (see FIG. 14). The contact insert 2 has an insulating body 20, which is made of an electrically insulating (plastic) material. The insulating body 20 forms a plug-in portion 206, which can be connected to connect two mutually associated connector parts 1, 3 with a plug portion 406 of a complementary, shown in FIGS. 3 and 4 contact insert 4 and to the insertion direction E in a plug-in opening 400 of the plug section 406 of the contact insert 4 can be inserted.

At the plug portion 206 plug openings 200 are formed, in which contact elements 22 are arranged, which are designed as contact pins and are used for electrical contact with contact elements 42 in the form of contact sockets within the insertion opening 400 of the plug portion 406 of the contact insert 4.

At a lower portion 203 of the insulating body 20, a cover 21 is arranged, which surrounds the lower portion 203 with a Umgriffsabschnitt 210 and via fastening tabs 21 1 - by engagement of locking elements 204 on the lower portion 203 in openings 212 in the mounting tabs 21 1 - is fixed to the lower portion 23 (in Fig. 1, only one fastening tab 21 1 visible, opposite the cover member 21 has a further fastening tab 21 1).

Transverse to the plug portion 206 is on one side of a mounting portion 202 for securing the contact insert 2 within the associated connector housing 10 before. Opposite to the insulating body 20, a grounding element 23 is arranged, which is shown in a separate representation in Fig. 2 and is supported on one of the plug portion 206 projecting abutment 205 against the insulating body 20.

The grounding element 23 has housing contact sections 231 which project transversely from the plug section 206 as flange sections (when the grounding element 23 is attached to the insulating body 20) and carry fastening openings 232, via which an attachment of the contact insert 2 with the associated plug housing 10 can be made.

To the housing contact portions 231 includes a surface portion 233, in which a mounting opening 235 is arranged for attaching the grounding element 23 to the insulating body 20 by means of a fastener formed as a screw 236 and from which towards the insulating body 20 form-fitting elements 234 for engagement in the insulating body 20 and opposite directed projection elements 238 protrude. About the interlocking elements 234, the grounding element 23 is fixed to the insulating body 20 in the correct position. In contrast, the positive locking elements 238 serve to prevent turning of a washer 239 (see FIG. 1) when the fastening element 236 designed as a screw rotates.

By way of a contact section 237 adjoining the surface section 233, a grounding line can be connected to the grounding element 23, for example by means of crimping.

Alternatively, a grounding line may be fixed to the grounding element 23 via the fastener 236 formed as a screw.

Integral with the grounding element 23 is a grounding contact element 230, which, as can be seen in FIG. 1, extends longitudinally along the plug-in section 206 and comes to rest on the outside of the plug-in section 206 when the grounding element 23 is arranged on the insulating body 20.

The ground contact element 230 has a dual function. On the one hand, the earthing contact element 230 serves for electrically connecting the plug-in connector part 3 assigned to the contact insert 2 with the plug-in connector part 3 associated with the contact insert 2 (see FIGS. 3 and 4) Earthing contact element 430 of a grounding element 43 of the contact insert 4 produce. A grounding between the contact inserts 2, 4 is thus produced via the ground contact element 230. Second, the ground contact element 230, in cooperation with a (on a side facing away from the grounding element 23 side of the plug portion 206) coding element 201, to provide a coding for the contact insert 2, the connecting a contact insert 2 with the associated contact insert 4 only in one Location and orientation possible. The coding is provided by the fact that the coding element 201 and the grounding contact element 230 have different widths and thus insertion of the plug-in section 206 into the plug-in opening 400 only when the coding element 201 is inserted into the associated coding element 407 of the plug-in section 406 and the grounding contact element 230 formed by webs in the opposite coding element 401, in the region of the grounding contact element 430 of the grounding element 43 of the contact insert 4 is arranged, is possible.

When inserted into the plug housing 10 contact insert 2, the housing contact portions 231 of the grounding element 23 are in electrically contacting manner on the inside of the connector housing 10, so that in a made of metal connector housing 10 is grounded to the connector housing 10 and thus the connector housing 10 is at a ground potential located. By direct attachment of the housing contact portions 231 via the mounting holes 232 on the connector housing 10 in this case a flat contact with the connector housing 10 is ensured so that an electrical contact is ensured. The grounding contact with the complementary contact insert 4 via the grounding element 230, which slides on plug-in connecting the connector parts 1, 3 on the grounding contact element 430 inside the insertion opening 400 of the plug portion 406 of the contact insert 4 and electrically contacted. The contact insert 4 shown in FIGS. 3 and 4, which is complementary to the contact insert 2 according to FIGS. 1 and 2, has, analogously to the contact insert 2 according to FIGS. 1 and 2, a lower section 403 which adjoins and adjoins the plug section 406 a cover 41 is arranged. The cover member 41 surrounds the lower portion 403 with a Umgriffsabschnitt 410 and is connected via fastening tabs 41 1 by engagement of locking elements 404 on the portion 403 in latching openings 412 in the mounting tabs 41 1 detent connected to the lower portion 403. The earthing element 43 shown separately in FIG. 4 is functionally identical to the earthing element 23 according to FIG. 2 and has in particular housing contact sections 431 with fastening openings 432 formed therein and a surface section 433 adjoining the fastening sections 431 with a fastening opening 435 formed therein. Of the surface portion 433 are positive locking elements 434 and projection elements 438 before. By way of a contact section 437 adjoining the surface section 433, a grounding line can be connected, for example by means of crimping, to the grounding element 43, alternatively a grounding line can also be screwed to the grounding element 43 via a fastening element 436.

The earth contact element 430, which is integrally formed on the grounding element 43, comes to rest on the inside of the plug-in opening 400 in the region of the coding element 401, ie along webs E of the coding element 401, and thus forms part of the element Coding element 401. When the contact insert 4 is plugged into contact with the contact insert 2, the earthing contact element 230 of the contact insert 2 slides onto the grounding contact element 430 of the contact insert 4 and establishes an earthed, electrical connection between the contact inserts 2, 4.

In one embodiment shown in Fig. 5-7 of a contact insert 2 plug-in openings 200 are formed on a plug portion 206 of an insulating body 200, which serve to receive contact elements. On the side of the plug-in portion 206 coding elements 201 are present.

At the plug portion 206 includes a lower portion 203, projecting from the transverse to the direction of insertion E, in the transition region to the plug portion 206 mounting portions 202 in the form of flanges transversely to the direction of insertion E. At the attachment portions 202 mounting holes 207 are formed, via which the contact insert 2 can be secured within the associated connector housing 10.

The insulating body 20 consists of an electrically insulating (plastic) material and is, in the illustrated embodiment, manufactured by injection molding. A grounding element 24, as shown in a separate illustration in FIG. 6, is in this case encapsulated by the material of the insulating body 20 such that a housing contact section 242 lies in the region of a fastening section 202 comes and on a side remote from the plug portion 206 side of the mounting portion 202 is exposed, as shown in FIG. 7 can be seen. Thus, electrical contact with the plug housing 10 can take place via the housing contact section 242 when the contact insert 2 is arranged in the associated plug housing 10.

The grounding element 24 has a connection section 240 in the manner of a current bar, on which on the one hand the housing contact section 242 and on the other hand a contact section 245 for contacting with an associated grounding contact element 220 is arranged. The housing contact portion 242 connected to the connection portion 240 via an angled portion 241 carries an opening 243 which is aligned with an associated attachment opening 207 of the associated attachment portion 202 of the insulator 20, as shown in FIGS. 5 and 7. In contrast, the contact section 245 connected to the connection section 240 via a section 244 carries an opening 246 through which the grounding contact element 220 engaging in a plug-in opening 200 of the plug section 206 engages, so that an electrical contact with the grounding element 24 is produced. If the contact insert 2 is inserted into the associated plug housing 10, the plug housing 10 is electrically connected to the grounding contact element 220 via the electrically contacting contact of the housing contact section 242 to the plug housing 10 and the electrical connection of the contact section 245 to the ground contact element 220 220 may be connected to a grounding line. When plugging the contact insert 2 with an associated, complementary contact insert of a mating connector part, the grounding contact element 220 also contacts an associated mating contact element, so that a ground is established with the mating connector part.

The grounding element 24 may be made with its sections 240-242, 244, 245, for example, as a one-piece bent sheet metal part. For the manufacture of the insulating body 20, the grounding element 24 is inserted into an injection mold for producing the insulating body 20 and encapsulated in the injection molding of the insulating body 20 of the material of the insulating body 20. In another embodiment of a contact insert 4, as shown in Fig. 8-10, a grounding element 44 is formed as a metal injection molded part at a plug portion 406 of an insulator 40 such that a housing contact portion 442 in the region of a mounting portion 402 below the plug portion 406 to lie comes and is accessible from the outside, that when inserted into an associated connector housing 30 contact insert 4 of the housing contact portion 442 flat against the connector housing 30 and electrically contacted with the connector housing 30. The grounding element 44 has a connecting portion 440 which connects the housing contact portion 442 to a contact portion 445, via which the grounding element 44 is electrically connected to an associated grounding contact element 420. An electrical connection between the plug housing 30 and the grounding contact element 420 is thus produced via the grounding element 44, wherein a grounding line can in turn be connected to the grounding contact element 420 and an electrical contact with the mating plug connector part and thus a common grounding takes place when it is plugged into an associated mating connector part , The attachment sections 402 on the underside of the plug-in section 406 are formed as shoulders at the transition to a lower section 403 in the illustrated embodiment. In the region of one of these fastening sections 402, the housing contact section 442 of the grounding element 44 comes to rest, as can be seen in FIG. 10.

In the illustrated embodiment, the grounding element 44 is manufactured as a metal injection molded part. The production of the grounding element 44 can take place with the insulating body 40 already present, for example by injecting a liquid tin alloy or another metal alloy with a low melting temperature into an opening provided thereon on the insulating body 40.

In an embodiment of a contact insert 2 shown in Fig. 1 1, a grounding element 25 is attached to a cover 21 and, when the cover 21 is connected to a lower portion 203 of an insulating body 20, held between the cover 21 and the insulating body 20. The cover element 21 has a bottom portion 213 with openings 214 formed therein for receiving contact elements 22. At the openings 214 support portions 215 are formed, which protrude in the manner of pins of the bottom portion 213 and serve to support the contact elements 22.

The cover member 21 has a Umgriffsabschnitt 210 which engages in the attached position, the lower portion 203, as shown in Fig. 1. Attachment tabs 210 projecting from the encompassing portion 210 have latching openings 212, which latchingly engage with latching elements 204 on the lower section 203 when the cover element 21 is attached and produce a positive connection of the cover element 21 with the lower section 203.

The grounding element 25 has a transversely extending bar-shaped connecting section 250, from which a contact lug 251 projects upwards in the direction of a plug-in section 206 and on which housing contact sections 252 are arranged laterally. The grounding member 25 is inserted with its connecting portions 250 into a groove 217 in the bottom portion 213 and abuts with the housing contact portions 252 in openings 216 in the wrapping portion 210 such that the housing contact portions 252 protrude laterally from the cover member 21 toward the surrounding male housing 10.

The ground contact member 220 is inserted into an opening 214 in the bottom portion 213 of the cover member 21 and is in electrical contact with the contact lug 251 of the ground member 25 in abutment. When inserted into the connector housing 10 contact insert 2, the grounding element 25 is also contacted via the housing contact portions 252 with the connector housing 10 so that the connector housing 10 is electrically connected to the ground contact element 220.

In turn, a ground lead may be connected to the ground contact element 220, and in addition, the ground contact element 220 makes contact with an associated mating connector part with a mating contact element of the mating connector part so that there is a common ground potential between the connector parts. The embodiment of FIGS. 12 and 13 is essentially - unless otherwise explained below - functionally identical to the embodiment described above with reference to FIG. 1 1. In contrast to the embodiment according to FIG. 11, however, in the exemplary embodiment according to FIGS. 12 and 13, the grounding element 25 is not attached in a form-fitting manner to the cover element 21, but is overmolded with the material of the cover element 21. The grounding element 25 is thus held integrally on the cover element 21 in such a way that the grounding element 25 projects laterally with its housing contact sections 252 relative to the cover element 21, as can be seen from FIG. 12, so that an electrical contacting of the grounding element 25 with the plug housing 10 takes place when the contact insert 2 is inserted into the connector housing 10.

To produce the grounding element 25 is inserted into the injection mold for producing the cover 21 and encapsulated in the injection molding of the cover 21 with the material of the cover 21.

Incidentally, reference should be made in full to the preceding statements on the exemplary embodiment according to FIG. 11.

In the embodiments shown in FIG. 1 1 and FIGS. 12 and 13, the housing contact portion 252 are elastically resilient transversely to the insertion direction E, which allows easy insertion of the contact insert 2 in an associated connector housing 10 and also causes the housing contact portions 252 when inserted contact insert 2 are under elastic bias to the connector housing 10 in Appendix.

15 and 16 show yet another embodiment of a contact insert 2, which has an insulating body 20 and a covering element 21 to be attached thereto. On the insulating body 20, contact elements 22 and a grounding contact element 220 are arranged. The insulating body 20 forms a plug-in portion 206, via which the contact insert 2 with an associated mating connector part along a plug-in direction E can be plugged into communication to contact in this way the contact elements 22 and the ground contact element 220 electrically connected to the mating connector part. Via openings 214 in the covering element 21, electrical lines can be connected to the contact elements 22 and a grounding line can be connected to the grounding contact element 220. On the insulating body 20, a grounding element 26 is arranged, which is attached to a housing contact portion 261 in the form of a flange to a mounting portion 202 in the form of a step on the insulating body 20 and fastening points in the form of mounting holes 262, via which the contact insert 2 within a connector housing 10 (see FIG. 14), so that the housing contact portion 261 is electrically contacted with the connector housing 10, and thus the connector housing 10 is incorporated into the ground. The housing contact section 261 is connected to contact sections 263 in the form of spring tongues via a multiply bent connecting section 260, which provide a receptacle for the grounding contact element 220 and contact the grounding contact element 220 in an electrically contacting manner in the assembled position (FIG. 16). The contact portions 263 are resiliently formed in this embodiment and thus are in composite contact insert 2 under spring preload and thus under reliable electrical contact on an outer surface of the ground contact element 220 at. The ground contact element 220 is latched to the insulating body 20 so that one end of the grounding contact element 220 protrudes into the region of the plug-in portion 206 of the insulating body 20 and thus can be connected to an associated mating connector part. The grounding element 26 is arranged on the insulating body 20 and engages with a connecting portion 260 a body portion 208 of the insulating body 20, are arranged on the contact elements 22, so that via the contact portions 263, the grounding contact element 220 is contacted in a central position on the insulating body 20.

In an embodiment of a contact insert 2 shown in FIGS. 17 and 18, two grounding elements 27 are arranged on both sides of an insulating body 20 on fastening sections 202 of the insulating body 20 and are supported on the insulating body 20. Each grounding element 27 has a housing contact portion 271 in the form of a flange, which rests against the associated mounting portion 202 of the insulating body 20 and attachment points in the form of mounting holes 272 for fixing the contact insert 2 in a connector housing 10 (see FIG. 14). Each housing contact portion 271 is Thus, when arranged in a connector housing 10 contact insert 2 electrically contacted with the connector housing 10.

From each housing contact portion 271 extend two connecting portions 270 which are angled to the associated housing contact portion 271 and bent several times and contact portions 273 in the form of contact lugs over which a centrally disposed on the insulating body 20 ground contact element 220 is electrically contacted. The connecting portions 270 engage around body portions 208 of the insulating body 20, on which contact elements 22 are arranged.

When the contact insert 2 is assembled (FIG. 18), the contact portions 273 of the grounding elements 27 sandwich the ground contact element 220 and thus jointly contact the grounding contact element 220. Each grounding element 27 has two contact sections 273 which are elastically resilient together with the connection sections 270 are such that a reliable electrical contacting of the grounding contact element 220 is provided via the contact portions 273.

The insulating body 20 in turn forms a plug-in portion 206, via which the contact insert 2 can be connected to an associated mating connector part along a plug-in direction E in order to electrically contact the contact elements 22 and the ground contact element 220. The grounding elements 27 are hereby arranged on a lower section 203 on a side facing away from the plug-in section 106 of the insulating body 20.

In composite contact insert 2, a cover 21 is attached to the insulating body 20 (see Fig. 18). Via openings 214 in the covering element 21, electrical lines can be connected to the contact elements 22 and a grounding line can be connected to the grounding contact element 220.

In an exemplary embodiment of a contact insert 2 shown in FIGS. 19 and 20, in turn, two grounding elements 28 are arranged on both sides of an insulating body 20 in order to contact electrically via contact sections 283 a grounding contact element 22 arranged centrally on the insulating body 20. The earthing elements 28 each have a housing contact portion 281 in the form of a flange with fastening points formed in the form of fastening openings 282 formed thereon. The housing contact portions 281 are located on mounting portions 202 of the insulator 20 and allow a setting of the contact insert 2 in an associated connector housing 10, including the connector housing 10 in the electrical ground. Each grounding element 28 has two multiply bent connection sections 280, which are angled toward the housing contact section 281 and each carry a contact section 283 in the form of a curved contact lug. The contact portions 283 of the grounding elements 28, when the contact insert 2 is assembled, sandwich the ground contact element 220 and thus contact the grounding contact element 220.

The connecting sections 280 respectively surround an associated body section 208 of the insulating body 22 in order to make electrical contact with the grounding contact element 220 arranged centrally on the insulating body 20.

In composite contact insert 2, a cover 21 is attached to the insulating body 20, as shown in Fig. 20. The cover element 21 has openings 214, via which electrical lines can be connected to the contact elements 22 and a grounding line to the grounding contact element 220.

In an embodiment of a contact insert 2 shown in FIGS. 21 to 23, a grounding element 29 is arranged on an insulating body 20. The grounding element 29 has a housing contact portion 291, which rests against a fixing portion 202 in the form of a step on the insulating body 20 and attachment points in the form of mounting holes 292 carries over which the contact insert 2 can be set within a plug housing 10 such that the grounding element 29th electrically contacted with the connector housing 10 and thus the connector housing 10 is included in the ground. Extending from the housing contact portion 291 is a C-shaped connecting portion 290 fixedly connected to a grounding contact member 220 at angled ends 293 remote from the housing contact portion 291, for example, via a clamp connection, a screw or rivet connection, or a solder or weld connection.

In this embodiment, the ground contact element 220 is thus firmly connected to the grounding element 29, so that by attaching the grounding element 29 to the Insulating body 20 and the ground contact element 220 is placed on the insulating body 20.

In the attached position, the grounding element 29 engages with its C-shaped connecting portion 290 a body portion 208 of the insulating body 20, are arranged on the contact elements 22.

At the connecting portion 290, on a side facing the housing contact portion 291, a fastening element 296 is arranged in the form of a screw, which is screwed into a threaded opening 295 of the connecting portion 290. A nut 297 is in threaded engagement with the fastener 296 in the form of the screw and is also supported via stop elements 294 relative to the connecting portion 290, so that upon rotation of the fastener 296 in the form of the screw nut 297 can not be moved.

A grounding line may be connected to the grounding element 29 via the fastener 296 to provide grounding to the grounding element 29 and, moreover, to a plug housing 10 in which the contact insert 2 is mounted.

To the insulating body 20, a cover 21 is attached, which has openings 214, can be connected via the electrical lines to the contact elements 22.

The idea underlying the invention is not limited to the embodiments described above, but can in principle also be realized in a completely different kind of way. A connector part of the type described here can be equipped in a modular manner with different contact inserts, wherein via a grounding element electrical contacting and grounding of an (electrically conductive) plug housing of the connector part takes place. Such a connector part can be manually connected to an associated mating connector part, but may also be part of an electrical system, such as a control cabinet, be. LIST OF REFERENCE NUMBERS

1 connector part

10 connector housing

1 1 cable outlet

12 cables

2 contact insert

20 insulator

200 plug opening

201 coding element

202 attachment section

203 Lower section

204 locking element

205 landing stage

206 plug-in section

207 attachment point

208 body section (main body)

21 cover element

210 Umgriffsabschnitt

21 1 fastening strap

212 latch opening

213 floor section

214 opening

215 support section

216 opening

217 groove

22 contact element

220 earthing contact element

23 earthing element

230 earthing contact element

231 housing contact section

232 mounting hole

233 area section

234 positive locking element

235 mounting hole

236 fastening element (screw)

237 contact section 238 projection elements

239 Washer

24 earthing element

240 Connection section 241 Angled section

242 housing contact section

243 mounting hole

244 The previous section

245 contact section

246 opening

25 earthing element

250 connecting section

251 contact flag

252 Housing contact section 26 Grounding element

260 connecting section

261 housing contact section

262 mounting hole

263 contact section

27 earthing element

270 connecting section

271 housing contact section

272 mounting hole

273 Contact section 28 Grounding element

280 connecting section

281 housing contact section

282 mounting hole

283 Contact section 29 Grounding element

290 connecting section

291 housing contact section

292 mounting hole

293 contact section 294 stop element

295 mounting hole

296 fastener 297 mother

3 connector part

30 connector housing

31 cable outlet

32 cables

4 contact insert

40 insulator

400 plug-in opening

401 coding element

402 attachment section

403 Lower section

404 locking element

406 plug section

407 coding element

41 cover element

410 Umgriffsabschnitt

41 1 fastening strap

412 latch opening

42 contact element

420 earthing contact element

43 earthing element

430 ground contact element

431 housing contact section

432 mounting hole

433 area section

434 positive locking element

435 mounting hole

436 fastening element (screw)

437 contact section

438 projection elements

439 Washer

44 earthing element

440 connecting section

442 housing contact section 443 mounting opening

445 contact section

E plug-in direction

Claims

claims

1 . Assembly for a connector part (1, 3), comprising a connector housing (10, 30) and a contact insert (2, 4) which can be connected to the connector housing (10, 30) and which has an insulating body (20, 40) made of an electrically insulating material. comprising a plug-in section (206, 406) which can be connected to a mating plug connector part (3, 1) along an insertion direction (E) and to which at least one electrical contact element (22, 42) for electrical contacting with an associated mating contact element (42, 22 ) of the mating connector part (3, 1), characterized by a grounding element (23, 24, 25, 26, 27, 28, 29, 43, 44) arranged on the insulating body (20, 40), which has a housing contact section (231, 242, 252, 261, 271, 281, 291, 431, 442) and having a grounding contact element (220, 230, 420, 430) arranged on the plug-in section (206, 406) for grounding contact with the mating plug connector part (4, 2). electrically verb is formed, wherein the housing contact portion (231, 242, 252, 261, 271, 281, 291, 431, 442) is adapted to electrically contact the connector housing (10, 30) when the contact insert (2, 4) with the Plug housing (10, 30) is connected.

2. An assembly according to claim 1, characterized in that the insulating body (20, 40) is integrally formed.

3. An assembly according to claim 1 or 2, characterized in that the grounding contact element (220, 230, 420, 430) along the plugging direction (E) extends and the plug-in connecting along the plugging direction (E) grounded with the

Mating connector part (3, 1) contacted.

4. Assembly according to one of claims 1 to 3, characterized in that the housing contact portion (231, 242, 261, 271, 281, 291, 431, 442) extends flat along a direction transverse to the plugging direction (E) extending plane.

5. Assembly according to one of the preceding claims, characterized in that the housing contact portion (231, 242, 261, 271, 281, 291, 431, 442) at least one attachment point (232, 243, 262, 272, 282, 292, 432, 443) for mechanically securing the contact insert (2, 4) on the plug housing (10, 30).

6. Assembly according to one of the preceding claims, characterized in that the housing contact portion (242, 261, 271, 281, 291, 442) in the region of a transversely to the direction of insertion (E) extended, with the plug housing (10, 30) supportingly in operative connection engageable mounting portion (202, 402) of the insulating body (20, 40) is arranged.

7. Assembly according to one of claims 1 to 6, characterized in that the grounding contact element (230) on an outer side of the plug portion (206) extends and for coding of the plug portion (206) transversely to the insertion direction (E) protrudes or on an inner side the plug-in section (406) is arranged in the region of a coding element (401).

8. An assembly according to claim 7, characterized in that the grounding contact element (230, 430) is integrally formed on the grounding element (23, 43).

9. Assembly according to one of claims 1 to 6, characterized in that the ground contact element (220, 420) of the plug portion (206, 406) is enclosed.

10. An assembly according to claim 9, characterized in that the ground contact element (220, 420) as to the grounding element (24, 25, 26, 27, 28, 29 44) separate element within the plug portion (206, 406) is arranged.

1 1. An assembly according to claim 9 or 10, characterized in that the grounding element (220, 420) has a contact portion (245, 263, 273, 283, 293, 445) for electrical connection to the ground contact element (220, 420) via a connection portion (240, 260, 270, 280, 290, 440) is connected to the housing contact portion (242, 261, 271, 281, 291, 442).

12. An assembly according to claim 1 1, characterized in that the contact portion (245, 263, 273, 283, 293, 445) relative to the connecting portion (240, 260, 270, 280, 290, 440) and / or the connecting portion (240 , 260, 270, 280, 290, 440) with respect to the housing contact portion (242, 261, 271, 281, 291, 443) is angled.

13. An assembly according to claim 1 1 or 12, characterized in that the

Connecting portion (260, 270, 280, 290) surrounds a body portion (208) of the insulating body (20).

14. Assembly according to one of claims 1 1 to 13, characterized in that the contact portion (263, 273, 283, 293) is formed resiliently and electrically contacting the ground contact element (220).

15. Assembly according to one of claims 1 1 to 14, characterized in that two grounding elements (27, 28) each having a housing contact portion (271, 281) and via a connecting portion (270, 280) with the housing contact portion (271, 281) connected contact portion (273, 283) on the insulating body (20) are arranged, which contact the grounding element (220) together.

16. An assembly according to any one of claims 1 to 15, characterized in that the grounding element (24) is encapsulated by the material of the insulating body (20) or made as a metal injection molded part on the insulating body (20).

17. Assembly according to one of claims 1 to 15, characterized in that the grounding element (25) connected to one with the insulating body (20)

Cover element (21) is arranged.

18. An assembly according to claim 17, characterized in that the cover (21) at one of the plug portion (206) facing away from the end of the insulating body (20) is attached.

19. An assembly according to claim 17 or 18, characterized in that the grounding element (25) between the cover (21) and the insulating body (20) is held.

20. An assembly according to claim 17 or 18, characterized in that the grounding element (25) is encapsulated by the material of the cover (21).

21. Assembly according to one of claims 17 to 20, characterized in that the housing contact portion (252) of the grounding element (25) transversely to

Plug-in direction (E) to the cover (21) protrudes.

22. An assembly according to any one of claims 17 to 21, characterized in that the grounding element (25) has a transverse to the insertion direction (E) extending connecting portion (250) on which the housing contact portion (252) and one on the connecting portion (250) arranged Contact lug (251) for electrical connection to the ground contact element (220) are arranged.

23. An assembly according to any one of the preceding claims, characterized in that the housing contact portion (252) is elastically resilient transversely to the insertion direction (E).