Plug-in connector

1. Plug-in connector ( 100 ) comprising at least one contact element ( 200 ) arranged in a base element ( 110 ) of the plug-in connector, and a crimp connection, in which at least one secondary locking recess ( 205 , 206 ) is arranged in the contact element ( 200 ), extending transversely to the plug-in direction (R), is provided, with which a locking stud ( 305 , 306 ) of a secondary locking element ( 300 ) engages, the secondary locking element ( 300 ) being in locked position, and further comprising a fixing element ( 215 ) which is arranged at the end of a crimp region and which engages with a mating recess ( 115 ) in the base element ( 110 ) of the plug-in connector.

2. Plug-in connector ( 100 ) as per claim 1 , wherein at least one secondary locking recess ( 205 , 206 ) is formed in a cone-shaped manner and wherein the locking stud ( 305 ) is oversized in relation to the secondary locking recess ( 205 ), so that, at the moment of the locking stud ( 305 ) engaging with the secondary locking recess, a clamping of the locking stud ( 305 ) in the secondary locking recess ( 205 ) is produced, with a simultaneous movement of the contact element in the base element of the plug-in connector, parallel to the plug-in direction (R).

3. Plug-in connector ( 100 ) as per claim 1 , wherein the fixing element ( 215 ), through the movement of the contact element ( 200 ) parallel to the plug-in direction (R), takes its bearing at a surface ( 116 ) of the mating recess ( 215 ) in the base element ( 110 ) of the plug-in connector, executing a bias.

4. Plug-in connector ( 100 ) as per claim 1 , wherein the fixing element ( 215 ) is arranged at a deflection ( 216 ) basically extending perpendicularly to the plug-in direction (R).

5. Plug-in connector ( 100 ) as per claim 4 , wherein the deflection ( 216 ) encloses an angle of 90° with the plug-in direction (R).

6. Plug-in connector ( 100 ) as per claim 1 , wherein the fixing element ( 215 ) is basically T-shaped.

7. Plug-in connector ( 100 ) as per claim 1 , wherein a detent spring ( 220 ) is arranged at the contact element ( 200 ) for compression in a primary locking recess ( 127 ) provided in the base element ( 110 ) of the plug-in connector.

8. Plug-in connector ( 100 ) as per claim 1 , wherein the number of secondary locking recesses ( 205 , 206 ) is determined depending on the extraction force specified.

9. Plug-in connector ( 100 ) as per claim 1 , wherein the secondary locking element recess ( 119 ) is provided in the base element ( 110 ) of the plug-in connector, which takes in the secondary locking element ( 300 ) in locked position.

10. Plug-in connector ( 100 ) as per claim 1 , wherein the secondary locking element ( 300 ) features a coding surface ( 332 ) at the leading end, which prevents the plug-in connector ( 100 ) from plugging if the secondary locking element ( 300 ) is placed outside the locked position.

11. Plug-in connector ( 100 ) as per claim 1 , at least one coding rib ( 330 ) is provided in the front area of the secondary locking element ( 300 ), extending in plug-in direction (R).