DE102016122396B3 - Electrical plug connection with an electrical plug - Google Patents

Abstract

The invention relates to an electrical connector and an electrical connector consisting of the electrical connector and an electrical socket, wherein the components of the electrical connector are snapped into each other and protected from unlatching and the connector prevents unlatching of the components of the connector.

Description

The invention relates to an electrical connector and an electrical connector from the electrical connector and an electrical socket.

From the prior art various versions of electrical connectors from electrical plugs and electrical sockets are known. The connection of the various components of a plug is usually done by a variety of screw. However, these generate during assembly increased assembly times, which makes screws as connecting means expensive. An alternative to screws is the latching technique, in each case a detent engages in a locking tab and thus fixes two parts to each other. Such locking connections are quick to produce and can be solved quickly. In practice, however, the snap-in connections are usually a considerable risk, because they can inadvertently come loose and thus the stability of the plug is lost and / or live conductors are exposed. In addition, the socket must usually have a close tolerance in order to be able to be conductively connected to the plug and to be able to provide the contact for connection at the installation site within the tolerance. If the connection is to be made at the installation site by a cohesive connection such as welding both the contact to the plug and the contact to the weld must be safe, fast and conductive produced, which is usually not the case in practice.

Further prior art is for example from the DE 10 2009 053 779 B3 previously known.

The invention is therefore based on the object to provide a cost-effective and simple electrical connector, which engages with a entrastsicher trained plug into a socket.

This object is achieved by the feature combination according to claim 1.

According to the invention, an electrical plug connection with an electrical plug is proposed which comprises a contact body housing, on which a detent element movable in an unlocking direction is formed, and a contact body latched in the contact body housing by a counter detent element, on which a counter detent element is formed.

The latching element of the contact body housing is surrounded in an unlocking direction, at least partially by a securing sleeve and / or directly covered, wherein an inner surface of the securing sleeve is spaced at a distance in Entrastrichtung to an outer surface of the movable latching element of the contact body housing. The distance is less than a locking distance in Entrastrichtung, which must be set to unlock the locking element between its latching position and the Entrastposition of the locking element in Entrastrichtung back to release the locking element from the counter-locking element of the contact body.

The locking sleeve is integrally formed by a plug housing. The integral design of locking sleeve and plug housing of the connector reduces the number of components and thus assembly and manufacturing costs.

Furthermore, it is advantageous that the inner surface of the plug housing, viewed at least in sections opposite to the plug-in direction of the plug, has a decreasing inner diameter. The decreasing inner diameter serves as a ramp on which slides in a radially outwardly facing surface of the locking element during assembly along.

A socket not belonging to the invention comprises a socket housing and a contact pin. The female housing forms a passage whose inner surface forms a sliding bearing surface of a sliding bearing for the contact pin, wherein the contact pin in an radial direction has an outer surface which is an abutment to the sliding surface. The contact pin is fixed in the radial direction by the slide bearing surface and the outer surface, and axially movably supported in a direction of a longitudinal axis extending along an insertion direction. At the contact pin a stop to limit the movement of the contact pins is arranged.

In a variant of the training not belonging to the invention, the stop is fastened to a fastening region of the contact pin, which lies outside the socket housing. The stop is executable as a plate which is fixed to a base of the pins.

The stop, which is arranged in and / or on a mounting housing electrical socket, forms in an embodiment not belonging to the invention, an electrical contact point.

The contact point is electrically connected in the mounted state with a formed or arranged in or on the mounting housing mating contact point, wherein an electrically conductive connection is preferably made cohesively. To be able to leave the mating contact station stationary, the stop on the contact pin can be moved so that the stop rests directly on the mating contact point.

In a further development not belonging to the invention, a longitudinal movement of the stopper and the contact pins along the longitudinal axis of a limiting surface formed by the female housing and one of them with a displacement path spaced limiting element is limited.

The limiting element is advantageously formed by the socket housing.

In a training variant not belonging to the invention, the limiting element forms a latching element. The stop engages through the latching element on a guide rail, so that the stopper can move between the limiting element and the boundary surface. The guide rail is designed to be at least partially movable, so that the latching element formed on the end of the guide rail facing away from the bushing is movable or resiliently movable in a direction substantially orthogonal to the guide rail.

Further, an electrical connector comprising an electrical connector and an electrical socket is proposed according to the invention. The electrical socket comprises a socket housing and a contact pin. At least one latching hook is formed on the contact body housing of the plug, and at least one latching tab is formed on the plug housing of the plug for latching with the counter-latching hook. The contact body housing is at least partially surrounded by the plug housing, which fixes the contact body housing in a radial movement relative to the plug housing and / or limited. The counter-latch hook is designed to engage in the latching tab. In an inserted state, in which a contact body is electrically conductively connected to a contact pin, unlatching of the latching tab and the latching hook is blocked by a securing surface.

Advantageously, a training alternative in which the contact body housing is at least partially surrounded by the socket housing in the inserted state. The contact body housing is in the inserted state at least partially surrounded by the socket housing, wherein the locking surface, which is formed on the female housing, a relative movement, blocked in a radial direction, the Gegenrasthakens and the locking tab to each other and wherein the securing surface at least partially the plug housing in a radial direction rotates.

It is also advantageous that in a design variant, the locking tab in the uninstalled state can be released from engagement with the Gegenrasthaken. This allows easy and quick disassembly.

Other advantageous developments of the invention are characterized in the subclaims or are shown in more detail below together with the description of the preferred embodiment of the invention with reference to FIGS. Show it:

1 a schematic spatial representation of an electrical connector;

2 a schematic plan view of an electrical connector;

3 a schematic spatial representation of an electrical connector;

4 a sectional view through an electrical connector;

5 a schematic spatial representation of an electrical connector;

6 a sectional view through an electrical connector.

The figures are exemplary schematic. Like reference numerals in the figures indicate like functional and / or structural features.

1 shows a schematic spatial representation of an electrical connector 3 , The electrical socket 2 is in a mounting housing only partially shown 4 attached, taking the mounting housing 4 penetrates in part. The electric plug 1 is in the electrical socket 2 plugged in. From the plug 1 is in the 1 only the plug housing 12 with the plug-in cover 12e to recognize. One side of the socket housing 20 forms the boundary surface 20c , which also serves as a stop surface from. In the center of the boundary surface 20c is the implementation 20a arranged by the contact pin 21 is guided. The outer surface 21a forms a sliding bearing surface. At the base of the contact pin 21 is the stop 22 who with his contact point 22a with a mating contact point in the mounting housing 4 is contacted, fixed. The stop 22 is on a guide rail between the boundary surface 20c and the delimiter 20d guided so that a distance between contact point 22a and mating contact point can be compensated.

2 shows an electrical connector 3 as in 1 from the supervision whereby the same components as in 1 you can see. By the supervision is particularly well recognizable that there are two electrical connectors, which are arranged side by side and each socket and plug side connected via a bridge A, B.

3 shows a schematic spatial representation of an electrical connector 1 , There are two electrical connectors 1 arranged side by side and connected to each other via a bridge. An electrical plug 1 each has a plug housing 12 on the plug cover 12e is locked. On the plug cover 12e remote end of the plug housing 12 is with the locking tab 12c a contact body housing 10 engaged. The contact body housing 10 surrounds the contact body 11 passing through the contact body housing 10 is insulated in the radial direction.

In 4 is an electrical plug 1 shown in a sectional view. The sectional view shows the individual components of the electrical connector 1 good to see. The plug housing 12 surrounds the sealing element 12b , which of the plug cover 12e against the inner walls of the plug housing 12 is pressed. In the assembled state thereby a tightness against the conductor is produced by the sealing element 12b is performed.

At his from the plug cover 12e opposite end forms the plug housing 12 the locking sleeve 12d off, on which the latching tab 12c is trained. In the snap tab 12c grips the counter-hook 10c the contact body housing 10 one. The contact body housing 10 lies at least partly on the inner surface 12a the locking sleeve 12d at. In the contact body housing 10 is the contact body 11 taken, which in the of the plug housing 12 remote longitudinal direction of the contact body housing 10 is applied. On the plug housing 12 facing side of the contact body 11 becomes the contact body 11 by locking the counter-locking elements 11a in the locking elements 10a protected from the contact body housing 10 to be disconnected. In order to prevent unlatching of this connection, the distance W1 between the inner surface 12a the locking sleeve 12d and the outer surface 10b the contact body housing 10 at the location of the locking element 10a smaller than the rest distance W2, which must be covered by the counter-locking element 11a from the locking element 10a to be able to disconnect.

In 5 is a representation of the electrical connector 3 similar 1 to see. They are the same components as in 1 shown, except for the mounting housing 4 ,

6 shows an electrical connector 3 in section, which in addition to the components of the electrical connector 1 as in 4 also the interaction with the electrical socket 2 is shown. The sliding bearing surface 20b leads the contact pin 21 through its outer surface 21a through the implementation 20a , The contact body 11 at least partially encloses the contact pin 21 and thus provides the conductive connection from the conductor C via the conductive contact body 11 , the conductive contact pin 21 and the conductive stop 22 to the conductive electrical contact point 22a ago. An unlatching of the locking tab 12c is prevented in the inserted state, characterized in that the locking tab 12c at least in part from the backup area 20e is surrounded, whereby a movement in a Entrastrichtung the locking tab 12c is prevented.

LIST OF REFERENCE NUMBERS

1

plug

2

Rifle

3

connector

4

mounting housing

10

Contact body case

10a

locking element

10b

outer surface

10c

Counter-locking hook

11

Contact body

11a

Counter-locking element

12

plug housing

12a

palm

12b

sealing element

12c

snap tab

12d

securing sleeve

12e

in lid

20

socket housing

20a

execution

20b

friction bearing surface

20c

boundary surface

20d

limiting element

20e

securing face

21

contact pin

21a

outer surface

22

attack

22a

contact point

A

bridge

B

bridge

C

ladder

W1

distance

W2

Rest distance

W3

displacement

Claims (5)

Electrical plug ( 1 ) comprising a contact body housing ( 10 ), on which a locking element which can be moved in an unlocking direction ( 10a ) is formed, and a in the contact body housing ( 10 ) by a counter-latching element ( 11a ) latched contact body ( 11 ), characterized in that the detent element ( 10a ) of the contact body housing ( 10 ) in the Entrastrichtung, at least partially by a Locking sleeve ( 12d ) and / or is directly covered, wherein an inner surface ( 12a ) of the locking sleeve ( 12d ) with a distance (W1) in the Entrastrichtung to an outer surface ( 10b ) of the movable latching element ( 10a ) of the contact body housing ( 10 ) is spaced, which is less than a locking distance (W2) in Entrastrichtung between the latching position and the unlatching position of the locking element ( 10a ) to the locking element ( 10a ) of the counter-latching element ( 11a ) of the contact body ( 11 ) and whereby the safety sleeve ( 12d ) integral of a plug housing ( 12 ) of the plug ( 1 ) is formed. Electrical plug ( 1 ) according to claim 1, characterized in that the inner surface ( 12a ) of the plug housing ( 12 ) viewed at least in sections against the direction of insertion of the plug considered having a decreasing inner diameter. Electrical plug connection ( 3 ) comprising an electrical connector ( 1 ) according to one of claims 1 or 2 and an electrical socket ( 2 ), which has a female housing ( 20 ) and a contact pin ( 21 ), wherein on the contact body housing ( 10 ) at least one counter-hook ( 10c ) is formed, and on the plug housing ( 12 ) at least one latching tab ( 12c ) for latching with the counter-latching hook ( 10c ), wherein the contact body housing ( 10 ) at least partially from the plug housing ( 12 ), what the contact body housing ( 10 ) in a radial movement relative to the plug housing ( 12 ) and / or limited, wherein the Gegenrasthaken ( 10c ) is formed in the latching tab ( 12c ) and in an inserted state in which the contact body ( 11 ) electrically conductive with the contact pin ( 21 ), a release from the latching tab ( 12c ) and the counter-latching hook ( 10c ) from a backup area ( 20e ) is blocked. Electrical plug connection ( 3 ) according to claim 3, characterized in that the contact body housing ( 10 ) in the inserted state at least partially from the socket housing ( 20 ), the backup area ( 20e ), which on the socket housing ( 20 ) is formed, a relative movement, in a radial direction, of the Gegenrasthakens ( 10c ) and the locking tab ( 12c ) are blocked to each other and wherein the backup surface ( 20e ) at least partially the plug housing ( 12 ) engages in a radial direction. Electrical plug connection ( 3 ) according to claim 4, characterized in that in the non-inserted state, the latching tab ( 12c ) out of engagement with the Gegenrasthaken ( 10c ) can be solved.

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