EP2962366B1 - Electrical industrial connector - Google Patents

Description

The invention relates to a connector, which has a housing, in which at least one contact element is arranged, and at least one cable connecting piece attachable to the housing for passing a cable, which is contactable with the at least one contact element in the housing, wherein at least one side surface the housing having an opening for the passage of the cable and a receptacle for attaching the cable connecting piece to the housing, wherein the cable connecting piece is fastened in a first position with a first cable outlet direction and in at least a second position with a second cable outlet direction on the receptacle, wherein the the receptacle for the cable connection piece having side surface of the housing is formed inclined at an angle between 30 ° and 50 ° to a base of the housing and, wherein the cable connection piece a support surface for resting on the Aufn Having ahme having side surface of the housing in a fixed state, wherein the support surface is formed inclined to a longitudinal direction of the cable connection piece at an angle between 40 ° and 60 °.

Connectors, especially heavy-duty industrial connectors, are specially designed for use in harsh environments. Such industrial connectors usually comprise a housing having a base part and a plug-in part, wherein the plug-in part can be plugged together with the base part. In the housing at least one contact element is arranged, which is formed from two or more contact inserts may be, wherein at least one contact insert in the base part and a contact insert are arranged in the male part and when mating the base part with the male part, the corresponding contact inserts can be electrically connected to each other. Usually, it is provided that the housing is made of a metal, for example in the form of a die-cast part, wherein the housing can provide reliable protection for the contact inserts against environmental influences. Industrial connectors are used, for example, in the automotive industry, in mechanical and plant engineering, in conveyor systems, as well as in measurement and control technology and, depending on the application, can have contact inserts with eg 6- to 108-pole design.

The contact inserts or the contact element are connected to at least one cable, wherein the cable can be inserted via a cable connection piece in the housing. The cable can also be designed as a hose, for example in the form of a compressed air hose when using pneumatic modules as contact inserts. The cable can always be mounted only at a certain angle on the housing. In particular, in cramped installation conditions, it may therefore happen that the electrical cable is kinked during insertion into the connector and thus damaged, so that it must be replaced with another cable.

From the DE 199 52 643 C1 is a housing for receiving electronic and / or electrical components with a trained as a cable connection piece rotating body for selectively aligning a therein provided Cable bushing or a coupling element integrated in the rotary body with respect to the housing main axis, wherein the rotary body is held by formed as locking tabs fastening means in a rotary body receptacle in the housing.

Other housings with a cable connecting piece which can be arranged in different cable outlet directions are known from US Pat DE 101 19 910 C1 . DE 203 08 570 U1 . DE 197 18 392 A1 . US Pat. No. 4,629,276 and EP 0 059 566 A1 known.

The invention is based on the object to provide a connector, in which a particularly secure attachment of the cable connection piece to the housing can be achieved.

In a connector of the type described in more detail, this object is achieved in that the connector for forming the bayonet-type locking the recording of the housing at least two locking cams arranged on the side surface of the housing and / or the cable connection piece at least two locking cams arranged on the support surface of the cable connection piece which, in the fastened state, engage in recesses arranged on the side face of the housing and / or on the bearing surface of the cable connecting piece, wherein the locking cams have a push-on surface formed with a slope, the push-on surface being curved.

Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.

Connectors according to the invention are characterized in that one or more cable connection pieces can not only be fixed in one position to the preferably one-piece housing, but one and the same cable connection piece can be secured in at least two positions on the housing, wherein each position of the cable connection piece another guidance of the cable or of a cable designed as a hose out of the housing or into the housing is made possible on the housing, without having to provide the housing with a second connection for a further cable connecting piece. Both the housing and the preferably also integrally formed cable connection piece have to form the position diversity on a special geometric configuration by the receptacle for the cable connection piece having side surface of the housing, which preferably forms an end face of the housing, at an angle between 30 ° and 50 Is formed inclined to a base surface of the housing and the bearing surface of the cable connection piece is formed at an angle between 40 ° and 60 ° inclined to the longitudinal direction of the cable connection piece. The angle between the longitudinal direction of the cable connection piece and the support surface of the cable connection piece is preferably greater than the angle between the base surface and the receiving side surface of the housing to which the cable connection piece is attachable. The cable connection piece can be placed in at least two different positions on the side surface of the housing, whereby the cable outlet direction of the through the cable connection piece guided cable can be varied. It is no longer necessary to use a differently shaped cable connecting piece per cable outlet direction, but this can now be achieved by means of a single cable connection piece, ie with one and the same cable connection piece. Furthermore, the connector is characterized by a high variance, since compared to conventional connectors, only one housing is needed, on which various cable connection pieces, each of which can accommodate a certain size of cables, can be attached. The otherwise necessary variety of connectors and in particular of housings of the connector can be significantly reduced.

In order to achieve a particularly secure attachment of the cable connection piece to the housing, the receptacle of the housing has at least two arranged on the side surface of the housing locking cams and / or the cable connection piece at least two arranged on the support surface of the cable connection piece locking cams to form the bayonet-type locking, which in the fastened state can engage in arranged on the side surface of the housing and / or on the support surface of the cable connecting piece recesses. For example, two locking cams and two recesses may be provided, which may each be arranged in a corner region of the side surface of the housing or in a corner region of the support surface of the cable connection piece. With two locking cams and two recesses, the two locking cams are preferably arranged opposite one another or diagonally opposite one another, and the two recesses are likewise preferably arranged opposite or diagonally opposite each other. In order to form the attachment of the cable connection piece to the housing particularly stable, four locking cams and four recesses may be provided, which may each be arranged in a corner region of the preferably rectangular side surface of the housing and the preferably rectangularly shaped bearing surface of the cable connection piece.

The locking cams have a sliding surface formed with a slope, wherein the push-on surface is formed bent. A push surface is in each case an upper surface or surface of a latching cam, with which the element on which the recesses are arranged, ie the receiving side surface of the housing or the bearing surface of the cable connection piece, both in a formation of the attachment of the cable connection piece to the housing as well as comes in a release of the attachment mainly in contact. The bearing surface of the cable connection piece or the side surface of the housing can thus slide on the push surface of the locking cam in the formation of the attachment and also when releasing the attachment. By slipping a concern of the cable connection to the housing can be ensured during the movement along the locking cam by a rotational movement of the cable connection relative to the housing. As a result, a kind of guide can be formed during the fastening process and during the release process of the fastening, so that incorrect assembly can be avoided. In addition, this can cause a distortion of the material of the cable connection piece and also a deformation of the locking cams in the formation of Fixing and loosening of the attachment can be avoided by the large forces acting thereby. Characterized in that the delay surface of the locking cam has a slope, a sliding of the side surface of the housing or the bearing surface of the cable connection piece on the push surface and thus on the locking cam can be relieved, while protecting the material, in particular the material of the cable connection piece. The push surface is preferably bent, in particular bent in the direction of rotation of the cable connection piece for attaching the cable connection piece to the housing, wherein bent means that the push surface is adapted to the circular shape of the opening or the circular shape of the annular surface. In this way, a concern of the side surface of the housing or the bearing surface of the cable connection piece, depending on where the recesses or the locking cams are formed, are ensured at the push-on surface of the locking cams, even with a rotary movement of the cable connection piece relative to the housing.

The attachment of the cable connection piece to the housing via a connection which, for example, can be easily assembled by hand, but can only be solved by a tool again. But it is also possible that the connection can be formed only by means of a tool, in particular lockable, is. As a result, a high connection security can be ensured. The connection is preferably formed on an outer side surface of the housing and an outer side surface of the cable connecting piece. Furthermore, the connection can also take place via the side surface of the housing with the opening for the passage of the cable and over the bearing surface of the cable connecting piece, so that the connection between the housing and the cable connection piece is formed.

To form the attachment, it is preferably provided that the cable connection piece can be fastened to the housing by means of a bayonet-type lock. The bayonet-type locking allows a quick-action pivotal mounting, since for connecting the mounted on the housing cable connection piece, a rotational movement of the cable connection piece relative to the housing only by substantially 45 ° is necessary. The bayonet-type locking is preferably designed such that it can be locked by hand, but can only be released again with the aid of a tool.

Further, it is preferably provided that in a fixed state of the cable connection piece on the housing formed on the cable connection piece annular surface engages in the opening of the housing, wherein the formation of the housing has at least two arranged in the opening of the housing web elements and to form the bayonet-like locking at least two undercuts are formed on an outer peripheral surface of the annular surface of the cable connection piece, in which the web elements are inserted and latched. The engaging in the opening of the housing ring surface allows a largely tilt-safe storage of the cable connection piece to the housing, even before the bayonet-type latch is closed and thus the cable connection piece is captively secured to the housing. The web elements with the undercuts together form the bayonet-type interlock by one each Led web element along an undercut and locked in the undercut. The length of the web elements or the length of the undercuts is formed so long that the locking of the web elements with the undercuts by a Achtelkreisdrehung of the cable connection piece, ie, a rotation about substantially 45 ° about the axis of rotation of the cable connection piece is possible. As a result, a quick and secure mounting of the cable connection piece is made possible on the housing. By increasing the number of web elements, ie by providing more than two web elements, the necessary Aufschraubwinkel when screwing the cable connection piece can be reduced to the housing.

Particularly preferably, it is provided that four web elements are arranged in the opening of the housing, wherein each two web elements may be arranged diagonally to each other, wherein preferably a first pair of diagonally arranged web elements is formed longer than a second pair of diagonally arranged web elements. In this way, a type of coding can be formed, whereby incorrect positioning of the cable connection piece can be avoided on the housing and thus a correct placement of the cable connection piece can be ensured on the housing. But it is also possible that the receptacle of the housing has only two web elements, which are arranged at the opening of the housing, these two web elements can be arranged opposite to each other or on one and the same side, spaced from one another.

In order to achieve a reduction of the necessary assembly forces in the attachment of the cable connection piece to the housing, the locking cams may have a different height. This is particularly advantageous when four locking cams are provided, in which case preferably two opposing locking cams, d. H. diagonally arranged locking cams, each having the same height and the juxtaposed locking cams have different heights.

Furthermore, it is possible for the push-on surface to be designed in such a way that, when being transferred to the fastened state, the push-on surface has a cutting-in action. The Einschneidwirkung causes the respective locking cam in the material of the element on which the recesses are formed, d. H. on the bearing surface of the cable connection piece or on the receiving side surface of the housing, with a rotary movement of the cable connection piece for attaching the cable connection piece on the housing cuts and thereby the locking cam in the corresponding element in which it cuts, hooked. By Einschneidwirkung stresses in the corresponding elements, in particular on the support surface of the cable connection piece and / or on the side surface of the housing can be reduced, and also a particularly secure attachment of the cable connection piece can be ensured on the housing.

In order to simplify the guidance and positioning of a cable in the cable connection piece, the ring surface may have at least one flattened area for receiving the cable.

For sealing the transition between the cable connection piece and the housing in a fixed state, the housing and / or the cable connection piece can preferably have a sealing element. The sealing element can be kept particularly secure by means of a captive formed on the housing and / or the cable connection piece, whereby an accidental slipping of the sealing element of the housing or the cable connection piece can be prevented. The captive can be formed by a protruding edge portion, behind which the sealing element can be clamped. The sealing element may be formed, for example, as an O-ring.

Further, it is preferably provided that the diameter of the opening of the housing substantially corresponds to the width of the housing. In this way, the space for the cables and the wiring in the housing over conventional designs in which the diameter of the opening is usually much smaller than the width of the housing can be increased. Also, the connection of the cables in the housing can be simplified. The diameter of the opening preferably corresponds to the inner diameter of the opening and the width of the housing preferably corresponds to the width of the housing measured on the inner wall surfaces.

The housing and / or the cable connection piece can be formed from a plastic. When forming a plastic, the housing and / or the cable connection piece in an injection molding process be prepared, in particular in the housing, the opening for connecting the cable connection piece, which is preferably always the same size, already formed in the injection mold, so that post-processing to form the opening are not required.

In order to achieve a high stability of the housing, the housing is preferably formed of a reinforced plastic. For example, the reinforced plastic may be a glass fiber reinforced plastic, such as a glass fiber reinforced polyamide.

The cable connection piece, however, is preferably formed of a softer plastic than the housing. The cable connection piece may preferably be formed of an elastic plastic, whereby, for example, a screw connection of the cable connection piece, to which a union nut can be fastened, can have a high degree of flexibility.

Furthermore, it is also possible that the housing and / or the cable connection piece are made of a metal, such as aluminum or zinc. The production of the housing and / or the cable connection piece made of metal can be effected by means of a metal casting method, for example a die casting or vacuum casting method.

If the cable connection piece is formed from a metal, an annular clamping basket made of plastic and an annular sealing element made of plastic can be arranged in an inner space of the cable connection piece, against which the cable led through the cable connection piece then clamped can lie. The sealing element is preferably located directly on the cable and the clamping element enclosing the sealing element presses the sealing element against the cable, in order to be able to achieve a particularly good sealing effect. By the clamping basket and the sealing element can also be formed in the cable clamping a defined flexibility. The clamping cage can be inserted as a separate component in the interior of the cable connection piece and thus arranged detachably. However, the clamping basket can also be injected directly into the interior of the cable connecting piece in order to be able to form a non-detachable connection with a wall bounding the interior of the cable connecting piece.

If the housing is formed from a metal, preferably the side surface of the housing with the opening for the passage of the cable and also the receptacle for fastening the cable connecting piece to the housing may be formed from a plastic or coated with a plastic. If the cable connecting piece is formed from a metal, preferably the bearing surface and / or the annular surface with the elements arranged thereon, such as the thread, of the cable connecting piece can be formed from a plastic or coated with a plastic. The plastic may be, for example, polyamide, in particular partially aromatic polyamide, which is characterized by high flexibility and good heat resistance.

The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

Fig. 1

eine schematische Darstellung eines Steckverbinders gemäß der Erfindung mit einem Gehäuse und einem Kabelanschlussstutzen, wobei der Kabelanschlussstutzen in einer ersten Position relativ zu dem Gehäuse angeordnet ist;

Fig. 2

eine schematische Darstellung des Steckverbinders gemäß der Erfindung mit einem Gehäuse und einem Kabelanschlussstutzen, wobei der Kabelanschlussstutzen in einer zweiten Position relativ zu dem Gehäuse angeordnet ist;

Fig. 3

eine schematische Darstellung eines Gehäuses eines Steckverbinders gemäß einer Ausführungsform der Erfindung;

Fig. 4

eine schematische Darstellung eines Kabelanschlussstutzens des Steckverbinders gemäß einer Ausführungsform der Erfindung;

Fig. 5

eine schematische Detaildarstellung des in Fig. 3 gezeigten Gehäuses;

Fig. 6

eine weitere schematische Detaildarstellung des in Fig. 1 gezeigten Gehäuses;

Fig. 7

eine weitere schematische Detaildarstellung des in Fig. 1 gezeigten Gehäuses;

Fig. 8

eine schematische Darstellung eines Steckverbinders gemäß einer weiteren Ausgestaltung mit einem Verdrehsicherungselement gemäß einer ersten Ausführungsform;

Fig. 9

eine weitere schematische Darstellung des Steckverbinders gemäß der in Fig. 8 gezeigten Ausgestaltung;

Fig. 10

eine weitere schematische Darstellung des Steckverbinders gemäß der in Fig. 8 und 9 gezeigten Ausgestaltung;

Fig. 11

eine schematische Darstellung eines Steckverbinders gemäß einer weiteren Ausgestaltung mit einem Verdrehsicherungselement gemäß einer zweiten Ausführungsform;

Fig. 12

eine schematische Darstellung eines Steckverbinders gemäß der Erfindung mit einem Gehäuse und zwei daran angeordneten Kabelanschlussstutzen;

Fig. 13

eine schematische Explosionsdarstellung eines Kabelanschlussstutzens gemäß der Erfindung aus Metall und der daran angeordneten Bauelemente;

Fig. 14

eine schematische Darstellung eines Steckverbinders gemäß der Erfindung mit einem Gehäuse und einem Kabelanschlussstutzen aus Metall;

Fig. 15

eine schematische Darstellung eines Steckverbinders mit einem teilweise geschnitten dargestellten Gehäuse, wobei der Kabelanschlussstutzen mit einem Sprengring an dem Gehäuse befestigt ist;

Fig. 16

eine schematische Explosionsschnittdarstellung eines Steckverbinders gemäß einer weiteren Ausführungsform der Erfindung; und

Fig. 17

eine schematische Schnittdarstellung des in Fig. 16 gezeigten Steckverbinders in einem zusammengebauten Zustand.

Show it

Fig. 1

a schematic representation of a connector according to the invention with a housing and a cable connection piece, wherein the cable connection piece is arranged in a first position relative to the housing;

Fig. 2

a schematic representation of the connector according to the invention with a housing and a cable connection piece, wherein the cable connection piece is arranged in a second position relative to the housing;

Fig. 3

a schematic representation of a housing of a connector according to an embodiment of the invention;

Fig. 4

a schematic representation of a cable connection piece of the connector according to an embodiment of the invention;

Fig. 5

a schematic detail of the in Fig. 3 shown housing;

Fig. 6

a further schematic detail of the in Fig. 1 shown housing;

Fig. 7

a further schematic detail of the in Fig. 1 shown housing;

Fig. 8

a schematic representation of a connector according to another embodiment with an anti-rotation element according to a first embodiment;

Fig. 9

a further schematic representation of the connector according to the in Fig. 8 embodiment shown;

Fig. 10

a further schematic representation of the connector according to the in Fig. 8 and 9 embodiment shown;

Fig. 11

a schematic representation of a connector according to a further embodiment with an anti-rotation element according to a second embodiment;

Fig. 12

a schematic representation of a connector according to the invention with a housing and two cable connection pieces arranged thereon;

Fig. 13

a schematic exploded view of a cable connecting piece according to the invention made of metal and the components arranged thereon;

Fig. 14

a schematic representation of a connector according to the invention with a housing and a cable connection piece made of metal;

Fig. 15

a schematic representation of a connector with a housing shown partially cut, wherein the cable connection piece is secured with a snap ring on the housing;

Fig. 16

a schematic exploded sectional view of a connector according to another embodiment of the invention; and

Fig. 17

a schematic sectional view of the in Fig. 16 shown connector in an assembled state.

Fig. 1 and 2 show a connector with a one-piece housing 1 and a fastened to the housing 1, integrally formed cable connection piece 2, via which a not shown here cable can be inserted into the interior of the housing 1 and there with one or more in the interior of the housing. 1 arranged contact elements, not shown, can be electrically connected. The cable connection piece 2 is releasably securable with a first end on a side surface 3 of the housing 1. At a second end opposite the first end, the cable connection piece 2 has an external thread 4, onto which a union nut 5 can be screwed for fixing a cable guided through the cable connection piece 2.

The side surface 3 of the housing 1, to which the cable connection piece 2 is fastened with its first end, is at an angle α between 30 ° and 50 °, preferably at an angle α of 40 °, to a base 6 of the Housing 1, which may be, for example, a straight formed bottom of the housing 1, formed inclined.

The cable connection piece 2 has at its first end a bearing surface 7, which in the attached state, as in Fig. 1 and 2 is shown, rests on the side surface 3 of the housing 1 and is fixed thereto. The support surface 7 is inclined to the longitudinal direction 8 of the cable connection piece 2 at an angle β between 40 ° and 60 °, preferably at an angle β of 50 °.

From the two angles α and β it follows that an outlet angle γ, which indicates the cable exit direction of the cable and is clamped between the base 6 of the housing 1 and a cross-sectional surface 9 of the cable connecting sleeve 2 formed at a 90 ° angle to the longitudinal direction, is interposed 0 ° and <90 °.

At the in Fig. 1 In the embodiment shown, the cable connecting piece 2 is fastened to the housing 1 in a first position with a first cable outlet direction. In this first cable outlet direction, the outlet angle γ is substantially 80 °.

At the in Fig. 2 In the embodiment shown, the cable connection piece 2 is fastened to the housing 1 in a second position with a second cable outlet direction. In this second cable outlet direction, the outlet angle γ is substantially 0 °.

One and the same cable connection piece 2 can thus be arranged in different positions to form different cable outlet directions on the housing 1.

In Fig. 3 is the housing 1 of the connector in a plan view of the side surface 3 of the housing 1, to which the cable connection piece 2 is fastened, shown.

The side surface 3 of the housing 1 has an opening 10 for the passage of one or more cables. The diameter D of the opening 10 substantially corresponds to the width B of the housing 1.

Further, on the side surface 3 of the housing 1, a receptacle 11 for fixing the cable connection piece 2 to the housing 1 is formed. At the in Fig. 3 - 7 In the embodiments shown, the cable connecting piece 2 can be fastened to the housing 1 by means of a bayonet-type lock.

For the bayonet-type locking, the receptacle 11 has web elements 12a, 12b, 12c, 12d arranged on or in the opening 10 of the housing 1. In the embodiment shown here, four web elements 12a, 12b, 12c, 12d are provided, which are formed bent in accordance with the radius of the opening 10. In each case two of the web elements 12a, 12b, 12c, 12d are opposite, ie arranged diagonally to each other. The web elements 12a, 12b, 12c, 12d are formed differently long, wherein the respective opposite web elements 12a, 12b, 12c, 12d are formed equal length. At the in Fig. 3 shown Embodiment, the web elements 12a and 12c have a shorter length than the web elements 12b and 12d.

Furthermore, the receptacle 11 has a plurality of latching cams 13a, 13b, 13c, 13d, which are arranged at a distance from the opening 10 on the side surface 3 of the housing 1, on. The locking cams 13a, 13b, 13c, 13d protrude from the surface of the side surface 3, so that they can cooperate with the bearing surface 7 of the cable connection piece 2. In the embodiment shown here, four locking cams 13a, 13b, 13c, 13d are provided, which are each arranged in a corner region 14a, 14b, 14c, 14d of the side surface 3 of the housing 1. The locking cams 13a, 13b, 13c, 13d may have a different height, with which they protrude from the surface of the side surface 3 of the housing 1, wherein preferably the respective opposite locking cams 13a, 13b, 13c, 13d are the same height.

In order to allow sliding of the bearing surface 7 of the cable connecting piece 2 on the locking cam 13a, 13b, 13c, 13d, the locking cams 13a, 13b, 13c, 13d each have a formed with a slope slip surface 15a, 15b, 15c, 15d, which bent is trained. The deflection of the push surface 15a, 15b, 15c, 15d is adapted to the bend of the opening 10, so that the push surface 15a, 15b, 15c, 15d is adapted to a rotational movement of the cable connection piece 2 relative to the housing 1 1.

In Fig. 4 a cable connection 2 of the connector according to the first embodiment of the invention is shown. The cable connection piece 2 indicates its support surface 7 an annular surface 16 which protrudes from the support surface 7. The annular surface 16 defines an opening 17 of the cable connection piece 2, via which one or more cables can be inserted through the cable connecting piece 2 into the housing 1. The annular surface 16 has a diameter which is slightly smaller than the diameter D of the opening 10 of the housing 1, so that the annular surface 16 in the positioning of the cable connection piece 2 on the housing 1 in the opening 10 of the housing 1 can dive.

On the outer peripheral surface of the annular surface 16 a plurality of undercuts 18 are formed, in each of which a arranged on the housing 1 web element 12a, 12b, 12c, 12d can hook behind by a rotational movement of the cable connection piece 2 relative to the housing 1 to form a bayonet-type locking. The number of undercuts 18 is adapted to the number of web elements 12a, 12b, 12c, 12d, so that in the embodiment shown here four undercuts 18 are provided due to the four web elements 12a, 12b, 12c, 12d.

The free end 19 of the annular surface 16, which forms a terminal edge of the annular surface 16, has an uneven surface, so that the entire annular surface 16, starting from the support surface 7 over the circumference has a different height. In particular, the annular surface 16 has at its end 19 two flattened regions 20a, 20b, in which the height of the annular surface 16 is reduced relative to the remaining annular surface 16.

On the outer peripheral surface of the annular surface 16, a sealing element 21 designed as an O-ring is furthermore arranged, which acts to seal axially and prevents in particular dust and moisture can penetrate into the connection between the cable connection piece 2 and the housing 1. In the assembled state of the cable connecting piece 2 to the housing 1, the sealing member 21 is located on an outer peripheral surface 34 of the opening 10 in transition to the surface of the side surface 3 of the housing 1, which in Fig. 3 is marked. The sealing element 21 is held captive with a captive 22 on the outer peripheral surface of the annular surface 16, below the undercuts 18. The captive 22 is formed in the form of a projecting from the outer peripheral surface of the annular surface 16 edge portion which may extend over the entire circumference of the annular surface 16 or partially over the circumference of the annular surface 16.

Further, a plurality of recesses 23a, 23b, 23c are formed on the bearing surface 7, which cooperate with the locking cams 13a, 13b, 13c, 13d of the housing 1. The number of recesses 23a, 23b, 23c corresponds to the number of locking cams 13a, 13b, 13c, 13d, wherein in Fig. 4 however, due to the illustration only three recesses 23a, 23b, 23c can be seen, but four recesses 23a, 23b, 23c, 23d are formed.

At the second end of the cable connection piece 2, opposite to the support surface 7, the external thread 4 for attachment of the union nut 5 and a plurality of annularly arranged fins 24 are formed on the cable connection piece 2, by means of the union nut 5 sealingly on a jacket of the in the Cable connection 2 inserted cable can be pressed.

Fig. 5 shows a detailed representation of a formed on the housing 1 locking cam 13a, 13b, 13c, 13d. It can be seen here that the latching cam 13a, 13b, 13c, 13d is wedge-shaped in order to form the push-on surface 15a, 15b, 15c, 15d, which has a pitch. The push-on surface 15a, 15b, 15c, 15d extends with a continuous slope from the side surface 3 toward a plateau 25a, 25c, 25c, 25d which is raised relative to the support surface 7 and defines the height of the detent cam 13a, 13b, 13c, 13d ,

Fig. 6 shows a special embodiment of the locking cams 13a, 13b, 13c, 13d, in which the push-on surface 15a, 15b, 15c, 15d is also wedge-shaped to form the pitch, but as in a plan view from above onto the push-on surface 15a, 15b, 15c, 15d can be seen, the push-on surface 15a, 15b, 15c, 15d is formed elliptical. The plateau 25a, 25b, 25c, 25d faces the in Fig. 4 a reduced area, wherein the reduced area of the plateau 25a, 25b, 25c, 25d and the elliptical configuration of the push surface 15a, 15b, 15c, 15d, the connection between the plateau 25a, 25b, 25c, 25d and the push surface 15a , 15b, 15c, 15d is formed relatively pointed, whereby the push-on surface 15a, 15b, 15c, 15d has a Einschneidwirkung. During a rotational movement of the cable connecting piece 2 relative to the housing 1 for attaching the cable connecting piece 2 to the housing 1 thus the locking cams 13a, 13b, 13c, 13d with their Sliding surface 15 a, 15 b, 15 c, 15 d cut into the support surface 7 of the cable connection piece 2.

Fig. 7 shows another view of the in Fig. 3 and 5 shown locking cams 13a, 13b, 13c, 13d. The locking cams shown here 13a, 13b, 13c, 13d, but also in Fig. 6 shown latching cams 13a, 13b, 13c, 13d, each have an adjacent to the plateau 25a, 25b, 25c, 25d strongly sloping side surface 26a, 26b, 26c, 26d, by means of which the locking cam 13a, 13b, 13c, 13d in the corresponding Recess 23a, 23b, 23c, 23d can hook. This side surface 26a, 26b, 26c, 26d of a latching cam 13a, 13b, 13c, 13d forms with the side surface 3 of the housing 1 an opening angle δ between 90 ° and 130 °. By this inclination of the side surface 26a, 26b, 26c, 26d of the latching cam 13a, 13b, 13c, 13d, the wear on the recess 23a, 23b, 23c, 23d of the cable connection piece 2 can be reduced and the holding force of the latching cams 13a, 13b, 13c, 13d can be increased.

In the Fig. 8 - 11 Embodiments of the connector are shown in which a Verdrehsicherungselement 27 is provided, which prevents in a mounted state of the cable connection piece 2 on the housing 1, a rotation of the cable connection piece 2 relative to the housing 1. Furthermore, the anti-rotation element 27 can also act as centering, whereby in the mounted state, a particularly tight contact of the cable connection piece 2 reaches the housing 1 and thus rattling of the cable connection piece 2 can be prevented on the housing 1. The anti-rotation element 27 is in the embodiments shown here in addition to the locking cam 13 a, 13b, 13c, 13d provided. But it is also possible that the anti-rotation element 27 is formed as an alternative to the locking cam 13a, 13b, 13c, 13d and thus when providing a Verdrehsicherungselementes 27 no locking cams 13a, 13b, 13c, 13d must be formed with more.

The anti-rotation element 27 is attached to an upper side 28 of the housing 1, wherein the anti-rotation element 27 is arranged laterally offset from the longitudinal axis 29 of the housing 1.

At the in Fig. 8 - 10 As shown embodiment, the anti-rotation element 27 is pivotally attached to the housing 1. The anti-rotation element 27 is fixed to the housing 1 such that it protrudes with one end over the side surface 3 of the housing 1, on which the cable connection piece 2 can be fastened. At this projecting end, the anti-rotation element 27 has a latching nose 30, which can hook or snap into the housing 1 in a recess 31 formed on the cable connecting piece 2 in the assembled state of the cable connecting piece 2.

Fig. 8 - 10 show the respective steps of mounting the cable connection piece 2 to the housing 1 and the corresponding movement of the anti-rotation element 27 thereby.

In Fig. 8 the cable connection piece 2 is placed on the side surface 3 of the housing 1, but not yet twisted into the end position. In Fig. 9 finds a twisting movement of the cable connection piece 2 relative to the Housing 1 in the direction of the arrow instead, with an edge portion 32 of the cable connecting piece 2 abuts against the anti-rotation element 27 and this pushes upwards, so that the cable connection piece 2 continues in its final position, as in Fig. 10 is shown, can be rotated. In the end position, the anti-rotation locking element 27 engages in the recess 31 on the cable connecting piece 2 by a downward movement, in that the edge region 32 no longer presses the anti-rotation element 27 upwards. The release of the anti-rotation element 27 from the latching takes place by means of a tool.

At the in Fig. 11 As shown embodiment, the anti-rotation element 27 is not pivotally mounted on the housing 1, but slidably mounted in a recess 33 on the upper side 28 of the housing 1. Here, in the uninstalled state of the cable connection piece 2 on the housing 1, the anti-rotation element 27 does not project beyond the side surface 3, but is completely received in the receptacle 11. Only in the mounted state of the cable connection piece 2 on the housing 1, when the cable connection piece 2 is in its end position, as in Fig. 11 is shown, the anti-rotation element 27 is pushed within the recess 33 in the direction of the cable connection piece 2 until it engages in the formed on the cable connection piece 2 recess 31 and locked therein. To release the anti-rotation element 27, this must be pushed back by means of a tool back in the direction of the housing 1.

In Fig. 12 a further possible embodiment of a connector is shown, in which on a housing 1, two cable connection piece 2 are formed, wherein the housing 1 has two symmetrically mutually formed side surfaces 3, each having an opening 10 for carrying a respective cable and a receptacle for fixing the Cable connection 2 have on the housing 1. The cable connecting pieces 2 are also fastened here in different positions on the side surfaces 3 of the housing 1, so that different cable outlet directions, which may also be different from each other, can be formed.

Fig. 13 shows an exploded view of a cable connection piece 2 made of metal, such as aluminum or zinc, and to be arranged on the cable connection piece 2 elements. In an inner space 36 of the formed metal connecting piece 2, an annular clamping basket 35 is arranged, which has a plurality of annularly arranged blades 37. The clamping basket 35 is arranged in the interior 36 of the cable connection piece 2 such that the clamping basket 35 bears with its outer peripheral surface close to the inner wall 36 delimiting wall of the cable connection piece 2. The clamping basket 35, which is preferably formed from a plastic, can be inserted as a separate component in the interior 36 or be molded directly into the interior 36 or to the wall bounding the interior. In the clamping basket 35, in turn, an annular sealing element 38 made of plastic is arranged such that the lamellae 37 of the clamping basket 35 can press on the outer peripheral surface of the sealing element 38 to at a screwed onto the cable connection piece 2 Union nut 5 a clamping of an inserted cable on the coupling nut 5, the fins 37 of the clamping basket 35 and the sealing element 38, which rests tightly against the cable to reach. Furthermore, in Fig. 13 an annular sealing member 21 in the form of an O-ring is shown, which can be arranged on the outer peripheral surface of the annular surface 16 of the cable connection piece 2.

Fig. 14 shows a connector in an assembled state, in which the cable connection piece 2 to the housing 1 and the union nut 5 are fixed to the cable connection piece 2. The housing 1, the cable connection piece 2 and also the union nut 5 are formed here from a metal.

Fig. 15 shows an embodiment in which the cable connection piece 2 by means of a snap ring 40 attached to the housing 1. The snap ring 40 surrounds the annular surface 16 of the cable connection piece 2 and is in close contact with an inner wall bounding the opening 10 of the housing 1. For better illustration, the housing 1 is shown here in a sectional view. During assembly, the cable connecting piece 2 is first arranged in the opening 10 of the housing 1 and then the snap ring 40 is fixedly mounted on the annular surface 16 of the cable connection piece 2 via the base 6 of the housing 1 having an opening 39. Via the opening 39 and the one or more contact elements can be introduced into the housing 1. In this embodiment, the cable connection piece 2 by means of the snap ring 40 is fixedly mounted on the housing 1, wherein a change of the clamping basket 35 and the union nut. 5 different cables with different sized cross-sections can be performed by clamping the cable connection piece 2 by clamping. By means of the snap ring 40, an axial securing of the cable connection piece 2 to the housing 1 can be formed. As an alternative to the snap ring 38, the attachment of the cable connection piece 2 to the housing 1 can also take place via pinning.

In Fig. 16 an exploded view of a connector is shown, wherein the housing 1 is shown in a sectional view. Both the cable connection piece 2 and the housing 1 are formed of a metal. The cable connection piece 2 has on the outer peripheral surface of its annular surface 16 a plurality of undercuts 18, wherein here two of these undercuts 18 can be seen. Unlike the in Fig. 4 The embodiment shown in FIG Fig. 16 shown undercuts 18 provided with a slope> 0 °. Also arranged on the housing 1 web elements 12a, 12b, which engage in the undercuts 18 in a bayonet-type locking of the cable connection piece 2 on the housing 1, have a corresponding to the slope of the undercuts 18 slope> 0 °. Characterized in that both the undercuts 18 and the web elements 12 a, 12 b have a slope, performs the cable connection piece 2 in the bayonet-like locking on the housing 1 in addition to the rotational movement and an axial movement, through which the sealing member 21 in the desired sealing Position between the housing 1 and the annular surface 16 of the cable connection piece 2 is moved. As a result, the necessary forces to be applied when attaching the cable connection piece 2 to the housing 1 reduced. This is particularly advantageous when a as in Fig. 16 shown sealing element 21 is arranged on the annular surface 16 of the cable connection piece 2, which, as in Fig. 17 is shown, a radial sealing action against the opening 10 in the housing 1 causes and no axial sealing action against an edge of the cable connection piece 2, as in the in Fig. 4 shown sealing element 21 is effected. LIST OF REFERENCE NUMBERS casing 1 Cable gland 2 side surface 3 external thread 4 Nut 5 Floor space 6 bearing surface 7 longitudinal direction 8th Cross sectional area 9 opening 10 admission 11 web element 12a, 12b, 12c, 12d locking cam 13a, 13b, 13c, 13d corner 14a, 14b, 14c, 14d postponement surface 15a, 15b, 15c, 15d ring surface 16 opening 17 undercut 18 Free end 19 Flattened area 20a, 20b sealing element 21 captive 22 recess 23a, 23b, 23c, 23d slats 24 plateau 25a, 25b, 25c, 25d side surface 26a, 26b, 26c, 26d anti-rotation 27 top 28 longitudinal axis 29 locking lug 30 recess 31 edge region 32 recess 33 Outer circumferential surface 34 pinch ring 35 inner space 36 slats 37 sealing element 38 opening 39 snap ring 40 angle α angle β angle of departure γ opening angle δ diameter D width B

Claims (12)

1. Plug connector comprising
   a housing (1) in which at least one contact element is arranged, and
   at least one cable gland (2), which can be fastened to the housing (1), for conducting a cable with which the at least one contact element in the housing (1) can make contact,
   wherein an opening (10) for conducting the cable and a receptacle (11) for fastening the cable gland (2) to the housing (1) are formed on at least one side surface (3) of the housing (1),
   wherein the cable gland (2) can be fastened to the receptacle (11) in a first position with a first cable output direction and at least in a second position with a second cable output direction,
   wherein the side surface (3) of the housing (1), which side surface has the receptacle (11) for the cable gland (2), is designed in a manner inclined at an angle (α) of between 30° and 50° in relation to a base surface (6) of the housing (1), and
   wherein the cable gland (2) has a support surface (7) for support on the side surface (3) of the housing (1), which side surface has the receptacle (11), in a fastened state,
   wherein the support surface (7) is formed in a manner inclined at an angle (β) of between 40° and 60° in relation to a longitudinal direction (8) of the cable gland (2),
   characterized in that, in order to form a bayonet fitting-like locking arrangement, the receptacle (11) of the housing (1) has at least two latching cams (13a, 13b, 13c, 13d) which are arranged on the side surface (3) of the housing (1) and/or the cable gland (2) has at least two latching cams (13a, 13b, 13c, 13d) which are arranged on the support surface (7) of the cable gland (2), which latching cams engage into cutouts
   (23a, 23b, 23c, 23d), which are arranged on the side surface (3) of the housing (1) and/or on the support surface (7) of the cable gland (2), in the fastened state, wherein the latching cams (13a, 13b, 13c, 13d) have a slide-on surface (15a, 15b, 15c, 15d) which is formed with a gradient, wherein the slide-on surface (15a, 15b, 15c, 15d) is of bent design.
2. Plug connector according to Claim 1, characterized in that the cable gland (2) can be fastened to the housing (1) by means of the bayonet fitting-like locking arrangement.
3. Plug connector according to Claim 2, characterized in that an annular surface (16), which is formed on the cable gland (2), engages into the opening (10) in the housing (1) in the state in which the cable gland (2) is fastened to the housing (1), wherein, in order to form the bayonet fitting-like locking arrangement, the receptacle (11) of the housing (1) has at least two web elements (12a, 12b, 12c, 12d) which are arranged in the opening (10) in the housing (1), and at least two undercuts (18), into which the web elements (12a, 12b, 12c, 12d) can be inserted and can be latched, are formed on an outer circumferential surface of the annular surface (16) of the cable gland (2).
4. Plug connector according to Claim 3, characterized in that four web elements (12a, 12b, 12c, 12d) are arranged in the opening (10) in the housing (1), wherein in each case two web elements (12a, 12b, 12c, 12d) are arranged diagonally in relation to one another, wherein a first pair of web elements (12a, 12b, 12c, 12d) which are arranged diagonally are designed to be longer than a second pair of web elements (12a, 12b, 12c, 12d) which are arranged diagonally.
5. Plug connector according to one of Claims 1 to 4, characterized in that the latching cams (13a, 13b, 13c, 13d) have different heights.
6. Plug connector according to one of Claims 1 to 5, characterized in that the slide-on surface (15a, 15b, 15c, 15d) is formed in such a way that the slide-on surface (15a, 15b, 15c, 15d) has a cutting-in action when moving over to the fastened state.
7. Plug connector according to one of Claims 3 to 6, characterized in that the annular surface (16) has at least one flattened region (20a, 20b) for receiving the cable.
8. Plug connector according to either of Claims 1 and 7, characterized in that the housing (1) and/or the cable gland (2) have/has a sealing element (21).
9. Plug connector according to one of Claims 1 to 8, characterized in that the diameter of the opening (10) in the housing (1) corresponds substantially to the width of the housing (1).
10. Plug connector according to one of Claims 1 to 9, characterized in that the housing (1) is formed from a reinforced plastic.
11. Plug connector according to one of Claims 1 to 10, characterized in that the cable gland (2) is formed from a softer plastic than the housing (1).
12. Plug connector according to one of Claims 1 to 11, characterized in that the housing (1) and/or the cable gland (2) are formed from a metal.

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