EP3189564A1

EP3189564A1 - Housing for connecting to a plug connector part

Info

Publication number: EP3189564A1
Application number: EP15766067.1A
Authority: EP
Inventors: Manuel TÜNKER
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2014-09-02
Filing date: 2015-08-26
Publication date: 2017-07-12
Anticipated expiration: 2035-08-26
Also published as: CN106716739B; EP3189564B1; DK201900040Y3; DK3189564T3; WO2016034466A1; ES2734064T3; CZ33358U1; DE202014011301U1; US20170288341A1; DE102014112631A1; CN106716739A; DK201900040U1

Abstract

The invention relates to a housing for connecting to a plug connector part, comprising a plug-in opening, into which the plug connector part can be plugged in a plug-in direction, a wall which surrounds the plug-in opening, and a coding device which has at least one coding projection that protrudes inwards from the wall into the plug-in opening transversely to the plug-in direction and is designed to allow the plug connector part to be plugged into the plug-in opening in a specified angular position about the plug-in direction. According to the invention, the wall (22) has a first wall portion (220) and a second wall portion (221) which adjoins the first wall portion (220) axially in the plug-in direction (E). The second wall portion (221) is offset outwards relative to the first wall portion (220) in a direction transverse to the plug-in direction (E).

Description

Housing for connection to a connector part

The invention relates to a housing for connection to a connector part according to the preamble of claim 1.

Such a housing comprises an insertion opening into which the connector part can be inserted in a plug-in direction. The insertion opening is surrounded by a wall, which may for example be cylindrical or may have another shape and defines the insertion opening. In addition, a coding device is provided which has at least one of the wall transversely to the insertion direction inwardly into the insertion projecting coding projection. The coding projection is designed to allow insertion of the connector part into the insertion opening in a predetermined angular position about the insertion direction.

By means of the coding device ensures that the connector part can be inserted into the insertion only in one or more discrete, predefined angular positions. On the connector part corresponding projections and / or grooves are provided, which can be brought into operative connection with the at least one Kodiervorsprung the coding in operative connection, so that insertion of the connector part in the insertion only in the one or more predefined angular positions is possible and also in plugged state the connector part is held in its angular position relative to the insertion.

The housing may for example be part of an electrical device. For example, an electrical cable can be connected to the electrical device via the connector part which can be inserted into the insertion opening, so that electrical signals, for example data signals or also an electrical power supply, can be transmitted via the connector provided by the housing and the connector part.

Such a plug-in housing with one or more connector parts can be used, for example, in wind turbines or other electrical equipment that are exposed to changing environmental conditions, such as changing temperatures in operation. In this case, for example, a shield plate and a printed circuit board with which the Connector part is in a plugged into the insertion state state.

While the housing is formed, for example, of plastic, a shroud is suitably made for example of metal. This can lead to the fact that the material of the housing and the material of the shielding plate have significantly different coefficients of thermal expansion, which means that under varying environmental conditions may lead to different expansions or shrinkages on the housing on the one hand and the shield plate on the other. This, in turn, can lead to quite considerable forces being produced on the connector parts inserted in the insertion openings of the housing, due to the fact that positional changes occur between the shielding plate and the housing under changing environmental conditions, for example as a result of a changing ambient temperature.

From DE 20 2010 015 623 U1 a trailer socket for a motor vehicle is known in which receiving channels for plug contacts are formed on a socket housing. From DE 43 43 209 A1 a power plug device with a housing is known. The power plug device may be e.g. used to charge an electric vehicle.

The object of the present invention is to provide a housing for use with a connector part, an electrical device with such a housing and an assembly with a housing and a connector part, which are also used in environments with strongly changing environmental conditions and changing temperatures and allow a secure, reliable, firm connection of a connector part with a housing.

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

Accordingly, it is provided in the housing that the wall has a first wall portion and an axially adjacent to the first wall portion, second wall portion in the insertion direction, wherein the second wall portion is offset in a direction transverse to the insertion direction to the first wall portion to the outside. Under the fact that the second wall portion is offset relative to the first wall portion to the outside, it is understood that the second wall portion is offset from the inside of the insertion opening from the rear relative to the first wall portion. If the wall is substantially cylindrically shaped, the second wall section is offset radially outward. In the region of the second wall section, the insertion opening is thus widened, compared to the first wall section. In particular, the insertion opening has a first opening width measured along a direction transverse to the insertion direction on the first wall section, and a second opening section which is greater than the first opening width on the second wall section. The present invention is based on the idea of providing a wall section at an insertion opening of a housing, into which a connector part can be inserted, which provides an enlarged opening width in comparison with another wall section of the insertion opening. The first opening width of the first wall section may in this case be adapted to a plug-in head of the plug connector part to be inserted into the plug-in opening such that the opening width at the first wall section substantially corresponds to the outside diameter of the plug-in head (with coding projections optionally arranged thereon). The first wall portion is viewed in the insertion direction upstream of the second wall portion, so that when plugging in the connector part is first inserted into the insertion initially approximately accurately in the region of the first wall portion. In this case, one or more coding projections of the coding device of the insertion opening with corresponding coding elements on the plug-in head of the connector part can be found in a precise manner, so that the insertion of the connector part takes place in the insertion in a defined angular position.

In a completely inserted state, the plug-in head of the connector part preferably comes to lie in the region of the second wall section, in particular with coding elements arranged thereon, which has an enlarged opening width. This causes the connector part in completely plugged state - due to the offset of the second wall portion to the outside - is not set accurately in the insertion, but in this fully inserted state has a (minor) game to the wall of the insertion.

Due to the clearance between the wall of the insertion opening and the inserted plug-in head of the connector part, a (minor) movement of the plug-in head in the insertion opening is possible during operation. If, due to changing environmental conditions, there is a change in the position between, for example, a shielding plate, with which the connector part is connected when plugged in, and the housing, because the shielding plate and the housing expand differently, for example due to temperature changes, then this may occur Position change can be compensated by a movement of the connector part in the insertion of the housing, without causing (excessive) forces between the connector part and the housing or the shield plate.

Due to the different opening widths at the different wall sections, effects of different expansion coefficients of the different materials, for example the shielding plate and the housing, can therefore be compensated.

The wall is formed in an advantageous embodiment at its first wall portion and at its second wall portion, for example, substantially cylindrical. In this case, the first opening width corresponds to the diameter of the insertion opening on the first wall section, while the second opening width corresponds to the diameter of the insertion opening on the second wall section. The first diameter at the first wall section is reduced in this case compared to the second diameter at the second wall section, so that the insertion opening widens towards the second wall section.

The coding device has at least one, preferably a plurality of coding projections which project inwardly from the wall and are shaped such that together with the connector part they define one or more defined angular positions in which the connector part can be inserted into the insertion opening. The at least one coding projection preferably extends along the insertion direction on the wall of the insertion opening, wherein in one advantageous configuration may be provided that the coding projection extends substantially at the second wall portion.

The at least one coding projection may preferably extend over the entire height of the second wall section, measured along the insertion direction.

Advantageously, two or more coding projections are provided, which together form the coding device. Between each two Kodiervorsprüngen here a Kodiernut is formed, which extends longitudinally along the insertion and into which an associated coding projection, for example in the form of an elongated Kodierstegs, can be inserted at the plug-in head of the connector part. In an inserted state, the coding projection of the connector part lies in the associated coding groove of the housing, so that the angular position of the connector part relative to the housing is fixed over it.

An encoding groove formed between two coding projections preferably has an entry point on the input side, the width of which - measured in the circumferential direction about the insertion direction - is reduced compared to the width of the coding groove adjoining the entry point. This causes that when inserting the connector part into the insertion first coding elements on the plug-in head of the connector part find in a precise manner with the entry points associated coding grooves and thus at a first insertion a precisely defined angular position is taken. Upon further insertion, the coding elements arrive at the plug-in head of the connector part in the area of the coding grooves and are then, after they have passed an assigned entry point, with play in the associated coding grooves.

There is thus a play both in the transverse direction and in the circumferential direction between the inserted connector part and the wall of the housing opening, so that in the fully inserted state, the connector part can be moved at least slightly in the associated insertion opening.

The entry point is arranged in an advantageous embodiment on the first wall portion. Get coding on the plug-in head of the connector part thus in the region of the entry point, so there is a fit Insertion of the plug-in head in a defined angular position in the insertion until the fully inserted position is reached after passing the entry points.

Several coding grooves of the coding device are preferably formed in the circumferential direction about the insertion direction offset from one another on the wall of the insertion opening. The coding grooves may differ from one another in particular in their circumferentially measured widths. Additionally or alternatively, the angular distances between the grooves may also differ. In this way, exactly one angular position can be specified, in which a connector part can be inserted into an associated insertion opening of the housing.

If the coding grooves are formed on the second wall section, then the opening width at the second wall section is to be measured in particular between (approximately) opposite coding grooves. The opening width at the second wall section is thus measured between bottoms of opposite coding grooves.

An electrical device preferably comprises a housing according to the above-described type and in a plane transverse to the insertion direction extending shielding plate, which is connected to the wall of the housing and connected in the insertion direction connects to the wall. The housing may for example be made of plastic, while the shroud is made of a metallic material, such as steel or copper. Accordingly, the housing and the shroud can have significantly different coefficients of thermal expansion, which can lead to a different expansion or shrinkage on the shroud compared to the housing during operation under changing environmental conditions, in particular with changing temperatures. Preferably, the shield plate limits the insertion opening of the housing in the insertion direction. The shield plate thus forms a rear wall of the insertion opening and thus defines the depth of the insertion opening. On the shield plate, one or more engagement openings may be formed, in which engage one or more latching elements of the connector part latching. Over the shield plate can thus be made a latching locking of the connector part in the insertion, so that after insertion of the connector part in the insertion opening Connector part not readily, at least not without loosening the latch can be removed from the insertion.

The insertion of the housing serves as a mating connector part for the connector part and realizes a socket into which the connector part can be inserted for producing, for example, an electrical connection. For this purpose, a contact plug, which has one or more electrical contacts, can be arranged on the shielding plate. The contact plug extends from the shield plate along the insertion direction into the insertion and enters upon insertion of the connector part in the insertion in connection with an associated contact part of the connector part, so that when plug connector part contacts of the contact plug on the side of the housing are electrically contacted with contacts of the Contact part of the connector part.

The electrical device may for example be part of a wind turbine or other electrical system. For example, the electrical device may include an electronic component that includes a printed circuit board and electrical and electronic components disposed thereon. The printed circuit board is preferably arranged at a distance (greater than zero) from the shielding plate and, viewed in the insertion direction, is located behind the shielding plate, so that the shielding plate shields the printed circuit board from the outside. The shield plate is used in particular for electromagnetic shielding and suppresses the irradiation of electromagnetic interference signals to the circuit board and / or the emission of electromagnetic interference signals from the electrical device out.

An assembly includes a housing or electrical device of the type described above and, in addition, one or more connector parts that can be mated with one or more insertion openings of the housing. For example, a plurality of insertion openings for connecting to a plurality of connector parts may be provided on the housing, wherein the insertion openings may be provided in an orderly manner (for example in an arrangement with a plurality of rows of insertion openings) on the housing.

Each connector part comprises a plug-in head, wherein on the plug-in head preferably at least one Kodiersteg extended along the insertion direction is arranged, which can be brought into engagement with a coding groove at the insertion opening. About the engaging in an associated coding groove Codiersteg is thus enabling insertion of the connector part in an associated insertion only in one or more angular positions. In the inserted state, the connector part is held in its angular position on the enclosed in the coding groove Codiersteg.

Preferably, the Kodiersteg extends over an extension length along the insertion direction of the plug-in head of the connector part. The extension length of the Kodierstegs here is preferably less than or equal to the height of the associated Kodiernut (measured also along the extension direction). If the coding groove is formed on the second wall section of the insertion opening of the housing, then this means that in the completely inserted state of the connector part the coding web on the plug-in head of the connector part comes to lie completely in the region of the second wall section and the coding groove arranged thereon and thus - due the enlarged opening width in the region of the second wall section - there is a clearance between the plug-in head and the wall of the insertion opening. This allows a compensation of changes in position of the connector part relative to the housing, for example, if the shield plate and the housing expand differently under changing environmental conditions. The length of the at least one Kodierstegs is preferably smaller than the entire length of the plug-in (viewed along the plug). The Kodiersteg thus extends only over part of the plug-in head.

The connector part preferably has at least one latching element arranged on a plug-in module and latchable with the housing. The latching element may for example comprise one or more spring arms, on each of which a latching lug is designed for latching connection with an associated engagement opening on the housing or the shield plate. In an advantageous embodiment, the connector part can, for example, realize a so-called "push-pull" connector, which comprises a plug assembly, which also comprises the latching element, and an adjustable part adjustable in the form of a sliding sleeve or the like for producing the plug assembly with the housing, the connector part can be inserted into the plug-in direction in an associated insertion opening, wherein the latching element engages with the housing or the shield plate is latching engages to release the connection between the connector part and the housing Adjustment operated, which acts upon actuation such on the locking element, that the latching connection between the locking element and the housing or the shield plate is released and thus the connector part can be removed against the insertion from the insertion. Such a connector according to the "push-PuH" principle allows easy insertion of the connector part in a secure and reliable connection and also a simple release of the connection by operating the adjustment.

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 an embodiment of a housing, comprising a

A plurality of insertion openings for inserting associated connector parts;

Fig. 2 is a front view of an insertion opening of the housing;

3 shows an exploded view of the housing in the region of an insertion opening; 4 shows a side view of the housing in the region of an insertion opening;

Fig. 5A is a separate view of the housing without a disposed thereon

Shield plate and a printed circuit board in the region of an insertion opening; Fig. 5B is a sectional view taken along line A-A of Fig. 5A;

5C is a rear view of the housing in the region of the insertion opening;

Fig. 6A, 6B are perspective views of a connector part for insertion into an insertion opening of the housing;

Fig. 7 is a side view of the connector part;

8A is a separate view of an adjustment of the connector part;

FIG. 8B is an exploded view of parts of a plug assembly of FIG

Connector part; and Fig. 9 is a front view of a plug-in head of the connector part.

1 shows an overview view of a housing 2 that is part of an electrical device 1. The electrical device can be part of, for example, a wind turbine or the like and have different electrical and / or electronic components, which are electrically connected to external assemblies via plug-in parts 6 (see FIGS. 6A and 6B) to be inserted into insertion openings 20 of the housing 2 in a plug-in direction E. may be to provide a signal connection and / or an electrical supply or the like.

FIGS. 2 to 5A show the housing 2 in the region of an insertion opening 20 in different views. Each insertion opening 20 is designed to receive a connector part 6. The insertion opening 20 has a basically cylindrical shape with a circular cross-section, wherein the insertion opening 20, as can be seen for example from FIG. 3, extends from a front surface 200 in the insertion direction E and is defined by a substantially cylindrical wall 22. As can be seen from FIG. 3, the wall 22 has a substantially cylindrical shape, wherein coding projections 240 of a coding device 24 are arranged on the wall 22, which define an angular position in which a connector part 6 can be inserted into the insertion opening 20. As can be seen in FIG. 2, a total of five coding projections 240 are formed on the wall 22 and project radially inward from the wall 22 into the region of the insertion opening 20. The coding projections 240 form between them five coding grooves 241 - 244, which can be brought into engagement with associated coding webs 701 - 704 on a plug-in head 70 of the connector part 6. The coding grooves 241-244 each extend longitudinally along the plug-in direction E and make it possible to insert the plug connector part 6 with its plug-in head 70 and the coding webs 701-704 arranged in the plug-in direction E in exactly one angular position about the plug-in direction E into the plug-in opening 20. As can be seen from FIG. 3, the wall 22 of the insertion opening 20 is adjoined by a shroud 3 which extends transversely to the insertion direction E. The shield plate 3 is located on a from the front surface 200 facing away from the end face of the wall 22 (see, for example, Fig. 4) and thus limits the insertion opening 20 back in the insertion direction E.

For example, while the housing 2 is made of a plastic material, the shroud 3 is preferably made of a metal such as copper or steel. The shielding plate 3 serves for the electromagnetic shielding of components of the electrical device 1 from the external environment outside the electrical device 1. The shielding plate 3 has a central opening 31, through which a contact plug 4 engages. The contact plug 4 has a substantially cylindrical shape and carries a plurality of contacts 40, which can be electrically contacted with associated contacts of a contact part 81 (see FIG. 8B) of the connector part 6.

The contact plug 4 is connected via attachment points 51 with a circuit board 5. The circuit board 5 has contact points 50 which are associated with the contacts 40 of the contact plug 4 and the electrical contacting of the contacts 40 on the side of the circuit board 5 are used. Through the contact points 50, for example, lead wires can be passed. Or at the contact points 50, an electrical connection, such as a solder joint, be made.

As can be seen from FIG. 4, the printed circuit board 5 is arranged at a distance A1-viewed in the insertion direction E-behind the shielding plate 3. The printed circuit board 5 may be made in its main body of a conventional printed circuit board material, such as FR4.

As can be seen in FIG. 3, engagement openings 30 are arranged around the central opening 31 on the shroud sheet 3 and serve for the latching reception of detents 903 of a detent element 90 of the connector part 6 (see FIGS. 6A and 8B). In the inserted state, the connector part 6 engages with the latching lugs 903 protruding from the plug-in head 70 into the associated engagement openings 30 of the shielding plate 3 and is thus positively connected to the shielding plate 3. The insertion opening 20 defining wall 22 is formed by two mutually different wall sections 220, 221. A second wall section 221, which in comparison to the diameter D1 of the first wall section 220 has a larger diameter D2 and thus a larger opening width, as shown in the sectional view according to FIG. 5B, adjoins a first wall section 220 in the insertion direction E axially ,

As can be seen in FIGS. 3 and 5B, a step exists between the first wall section 220 and the second wall section 221 on the coding grooves 241-244. In particular, at the transition between the first wall section 220 and the second wall section 221, the insertion opening 20 widens in that the second wall section 220 is offset radially outward.

The coding projections 240 in this case extend over the height H1 of the second wall section 221, so that the coding grooves 241-244 are formed on the second wall section 221.

At the transition between the first wall section 220 and the second wall section 221 is located, still on the first wall section 220, for each Kodiernut 241-244 an entry point 245, which represents the entry into the respective Kodiernut 241 - 244 and through which an associated Kodiersteg 701st -704 on the plug-in head 70 when inserting the connector part 6 must be pushed. As can be seen in particular from FIG. 5B, the entry point 245, viewed in the circumferential direction about the plug-in direction E, has a width W1 which is smaller than the width W2 of the coding groove 241-244 which adjoins it axially.

Because the second wall section 221 has a larger diameter D2 than the first wall section 220 in the area of the coding grooves 241-244 arranged thereon, it follows that when the plug connector part 6 is fully inserted, ie when the plug-in head 70 of the connector part 6 is completely inserted into the plug-in opening 20 , a game between the plug-in head 70 and the wall 22 of the insertion opening 20 is made. The encoder lands 701-704 extend past the plug head 70 over a length L2 (see FIG. 8A) that corresponds to the height H1 of the code grooves 241-244 or is smaller than the height H1. The Kodierstege 701 -704 come to completely plugged connector part 6 in the field of Kodiernuten 241 -244 to lie and are characterized, due to the increased diameter D2 of the second Wandungsabschnitts 221 and in comparison to the entry point 245 larger width W2 of the Kodiernuten 241-244 with play in the Kodiernuten 241 -244 a.

This makes it possible, for example, for changing environmental conditions, for example changing temperature conditions, a change in position between the shroud 3 and the housing 2 can be compensated by the plug-in head 70 of the connector part 6 in the associated insertion 20 (slightly) can move. If there is a change in temperature, the shield plate 3 usually expands (or shrinks) in a different way than the housing 2, if the material of the shielding plate 3 and the material of the housing 2 have different thermal expansion coefficients. Because the connector part 6 engages lockingly in the shroud 3 via its locking lugs 903, the connector part 6 changes its position together with the shroud 3, so that it can come to a change in position of the connector part 6 relative to the housing 2. This is possible in the region of the play between the plug-in head 70 and the insertion opening 20, without resulting in (excessive) forces between the connector part 6 and the housing 2.

The axial length L1 of the plug-in head 70 substantially corresponds to the total height H of the insertion opening 20 (see FIGS. 5B and 7).

When inserting the connector part 6 in an associated insertion opening 20 of the plug-in head 70 is first inserted into the first wall section 220 with the coding webs 701 -704 arranged thereon. The connector part 6 can then be brought into the correct, defined angular position in which the Kodierstege 701 -704 with the entry points 245 on the input side of the Kodiernuten 241 -244 find. Due to the reduced width W1 at the entry points 245 compared with the coding grooves 241-244, the coding webs 701 -704 are located in (at least approximately) an exact angular position, so that insertion of the plug-in head 70 takes place accurately. Upon further insertion, the Kodierstege 701-704 are inserted into the associated Kodiernuten 241-244 until the Kodierstege 701 -704 fully inserted plug-in head 70 are in the range of Kodiernuten 241 -244 come. Because the Kodierstege 701-704 then the entry points have happened 245 and thus no longer fence in the area of the entry points 245, there is a game between the Kodierstegen 701-704 and the Kodiernuten 241 -244 and thus a total game between the plug-in head 70 and the wall 22 of the insertion 20th

6A, 6B to 9 show in different views a connector part 6, which is to be inserted into an insertion opening 20 of the housing 2.

The connector part 6 is designed according to the so-called "push-pull principle" and comprises a plug assembly 9, on which an adjustment part 7 in the form of a sliding sleeve is displaceably arranged along the insertion direction E. As can be seen from the exploded view according to FIG Plug assembly 9 has a latching element 90 which comprises a shaft 900 and spring arms 902 extending from the shaft 900. Locking lugs 903 are formed on the spring arms 902 and are latchingly engaged with the engagement openings 30 on the shield plate 3 on the side of the electrical device 1 can to lock the connector part 6 to the housing 2.

The latching element 90 is arranged on a contact part 81 and engages with its spring arms 902, the contact part 81. The shaft 900 comes in the assembled state of the connector part 6 in the region of freely extending conductor wires 80 between the contact part 81 and a sheathed cable 8 to lie and wraps it Lead wires 80 on their free extension path between the contact part 81 and the sheathed cable 8 a.

On the shaft 900, a housing part 91 is arranged, which covers the shaft 900 and guide webs 912, along which the adjusting part 7 is slidably guided. The housing part 91 forms a sleeve 910, which receives the shaft 900 in it and which connects with a collar 91 1 to a collar 901 of the shaft 900. An extension piece 913 extended at an angle to the sleeve 910 defines a bend of the cable 8 on the connector part 6 (see, for example, Fig. 6B).

The adjusting part 7 forms the plug-in head 70 with the coding webs 701 -704 arranged thereon.

While the Kodierstege 701, 703 extend here over the height H1 of the Kodiernuten 241 -244 corresponding length L2 on the plug-in head 70 along, the Kodierstege 702, 704 a coding head 705 and an adjoining longitudinal extension portion 706 (see Fig. 8A). The coding head 705 is larger in its dimensions transversely to the insertion direction E than the longitudinal extension section 706 and in its width the width W1 of the entry point 245 of the associated coding groove 242, 244 adapted. If, when inserting the plug-in head 70 into the insertion opening 20, the coding head 705 passes the assigned entry point 245, then the longitudinal extension section 706 lies with play in the entry point 245, so that when the plug-in head 70 is fully inserted, a relative movement of the plug-in head 70 transversely to the insertion direction E in the Plug-in opening 20 is possible.

The adjustment member 7 is resiliently biased by spring elements 92 relative to the plug assembly 9, so that after actuation of the adjustment 7 against the insertion direction E, the adjustment member 7 is automatically returned to its original position.

To connect the connector part 6 with the electrical device 1, the connector part 6 is inserted with the plug-in head 70 in the insertion direction E in an insertion opening 20 of the housing 2 until the plug-in head 70 comes to rest completely in the insertion opening 20. In this inserted state, contacts 810 of the contact part 81 are electrically contacted with contacts 40 of the contact plug 4 on the side of the electrical device 1. In addition, the locking lugs 903 engage in the engagement openings 30 of the shielding plate 3, so that a latching connection between the connector part 6 and the shield plate 3 is made.

In order to release the connector part 6 of the electrical device 1, the adjustment member 7 is moved against the insertion direction E relative to the connector assembly 9 by a user, for example, pulls on an adjoining the plug-in 70 actuator 71 of the adjustment 7. As a result, the adjusting part 7 runs on bevels 904 on the spring arms 902 of the latching element 90 (the spring arms 902 come with mounted connector part 6 in the region of the plug-in head 70, in the interior of suitable actuating elements are provided for acting on the ramp 904). As a result, the spring arms 902 with the latching lugs 903 arranged thereon are pressed radially inwardly toward the insertion direction E and thus disengaged from the engagement openings 30, so that the connector part 6 can be removed from the insertion opening 20 against the insertion direction E. The contact part 81 is encompassed by a spring element 93 in the form of a helical spring, which is in plug-in connector part 6 with the shroud 3 in abutment and a spring bias between the plug head 70 and the shield plate 3 against the plug E causes. This preload on the one hand takes a game from the locking connection between the connector part 6 and the shield plate 3 and supports the other a removal of the connector part. 6

The idea underlying the invention is not limited to the above-described embodiments, but can in principle be realized even in completely different types of embodiments.

In particular, in principle, the shape of the insertion opening may also deviate from a cylindrical shape and, for example, be polygonal, for example square or even oval.

1 device

casing

0 insertion opening

00 front surface

2 wall

20 Wandungsabschnitt 21 Wandungsabschnitt 4 coding device 40 Codiervorsprung

41 -244 coding groove

45 entry point

3 shroud

30 intervention openings

31 opening

4 contact plugs

40 contacts

5 circuit board

50 contact points

51 attachment points

6 connector part

7 adjustment part

70 plug-in head

701 -704 coding bridge

705 coding head

706 longitudinal extension section

71 actuating part

δ cable

80 wires

81 contact part

810 contacts

g connector assembly

90 locking element

900 shaft

901 fret

902 spring arms 903 locking lugs

904 ramps

91 housing part

910 sleeve

9 1 fret

912 guide bar

913 extension piece

92 spring element

93 spring element

A1 distance

D1, D2 diameter

E insertion direction

H, H1 height

L1, L2 length

W1, W2 width

Claims

claims

1 housing for connection to a connector part, with

an insertion opening into which the connector part can be inserted in a plug-in direction,

- A wall surrounding the insertion, and

- A coding device having at least one of the wall transverse to the insertion inwardly into the insertion projecting coding projection which is adapted to allow insertion of the connector part into the insertion opening in a predetermined angular position about the insertion direction, characterized in that the wall ( 22) has a first wall section (220) and a second wall section (221) adjoining the first wall section (220) in the insertion direction (E), wherein the second wall section (221) extends in a direction transverse to the insertion direction (E) the first wall section (220) is offset outwards.

2 housing according to claim 1, characterized in that the insertion opening (20) measured transversely to the insertion direction (E) at the first wall portion (220) has a first opening width (D1) and at the second wall portion (221) has a second opening width (D2), which is larger than the first opening width (D1) has.

3 housing according to claim 2, characterized in that the wall (22) at its first wall portion (220) and at its second wall portion (221) is substantially cylindrically shaped and the first opening width to the diameter (D1) of the insertion opening (20) the first wall portion (220) and the second opening width corresponds to the diameter (D2) of the insertion opening (20) on the second wall portion (221).

4 housing according to one of claims 1 to 3, characterized in that the at least one Kodiervorsprung (240) along the insertion direction (E) over the entire, along the insertion direction (E) measured height (H1) of the second wall portion (221) extends ,

5 housing according to one of the preceding claims, characterized in that the coding device (24) at least two coding projections (240), the form between them along the insertion direction (E) extending coding groove (241 -244) has.

6. Housing according to claim 5, characterized in that the coding groove (241 -244) measured in the circumferential direction about the insertion direction (E) has a first width (W2), wherein the coding groove (241 -244) viewed in the plug-in direction (E) connects to an entry point (245) and the entry point (245), measured in the circumferential direction, has a second width (W1) smaller than the first width (W2).

7. Housing according to claim 6, characterized in that the entry point (245) on the first wall portion (220) is arranged.

8. Housing according to one of the preceding claims, characterized in that the coding device (24) has a plurality of coding grooves (241 -244), which in

Circumferential direction are offset by the insertion direction (E) to each other.

9. Housing according to claim 8, characterized in that at least two of the Kodiernuten (241 -244) measured in the circumferential direction have different widths (W2).

10. Housing according to one of the preceding claims, characterized in that the second wall portion (221) measured between transversely to the insertion direction (E) within the insertion opening (20) opposite coding grooves (241-244) has a larger opening width (D1, D2) as the first

Wall section (220).

1 1. Electrical device, characterized by a housing (2) according to at least one of the preceding claims and a transversely to the plug (E) extended shielding plate (3) which is connected to the wall (22) of the housing (2) and in the Insertion direction (E) considered connected to the wall (22).

12. Electrical device according to claim 1 1, characterized in that the shield plate (3) limits the insertion opening (21) in the insertion direction (E) and at least one engagement opening (30) for latching receiving a latching element

(90) of the connector part (6).

13. Electrical device according to claim 1 1 or 12, characterized in that with the shield plate (3) one of the shroud (3) along the insertion direction (E) into the insertion opening (20) hineinerstreckter contact plug (4), the at least one electrical Contact (40), is connected.

14. Electrical device according to one of claims 1 1 to 13, characterized by a printed circuit board (5) which, viewed in the insertion direction (E), with a distance (A1) to the shield plate (3) is arranged.

15. Assembly characterized by

at least one housing (2) according to one of claims 1 to 10 or an electrical device (1) according to one of claims 1 1 to 14 and

a connector part (6) to be engaged with the insertion opening (20) of the housing (2).

16. An assembly according to claim 15, characterized in that the connector part (6) a plug-in head (70) and at least one on the plug-in head (70) arranged along the plug-in direction (E) extending Kodiersteg (701 -704) having a Kodiernut (241 -244) at the insertion opening (20) is engageable, has.

17. An assembly according to claim 16, characterized in that along the insertion direction (E) measured extension length (L2) of the at least one Kodierstegs (701 -704) is less than or equal to the height along the plug (E) measured height (H1) of at least one Coding groove (241 -244) is.

18. An assembly according to claim 16 or 17, characterized in that the plug-in head (70) has along the insertion direction (E) measured length (L1), which substantially along the insertion direction (E) measured height (H) of the wall ( 22) of the housing (2), wherein the length (L2) of the at least one Kodierstegs (701-704) is smaller than the length (L1) of the plug-in head (70).

19. An assembly according to any one of claims 15 to 18, characterized in that the connector part (6) at least one of a plug assembly (9)

comprising latching element (90) which can be brought into engagement with the housing (2) and has an adjusting part (7) which can be adjusted relative to the plug assembly (9), wherein the Adjustment (7) is formed, upon actuation to release the engagement between the at least one latching element (90) and the housing (2) to act on the at least one latching element (90).