Assembly of plug connector and circuit board

1. An assembly of a plug connector and circuit board ( 200 , 500 ; 801 ), wherein the plug connector ( 100 ; 400 ; 800 ) is arranged on an edge of the circuit board ( 200 ; 500 ; 801 ), comprising contact elements ( 110 , 120 ; 410 , 420 , 430 ; 805 ) arranged in, below, and above the circuit board plane, wherein at least the contact elements ( 110 , 120 ; 410 , 420 , 430 ; 805 ) arranged below and above the circuit board are bent on the side of said contact elements facing the circuit board ( 200 ; 500 ; 801 ) in such a way that said contact elements lead from both sides of the circuit board ( 200 ; 500 ; 801 ) into openings in the circuit board ( 200 ; 500 ; 801 ) adapted to the contact elements ( 110 , 120 ; 410 , 420 , 430 ; 805 ) and can be soldered there, wherein a housing ( 400 ) of the plug connector, which housing is formed especially by an insulating body and accommodates the contact elements ( 110 , 120 ; 410 , 420 , 430 , 805 ), comprises obliquely extending areas ( 441 , 442 ) for guiding and supporting obliquely extending contact elements, wherein the housing ( 400 ) comprises a projection ( 4020 ) on its side facing the circuit board ( 500 ′, 500 ″, 500 ′″), with the boundary surface of said projection which faces the circuit board extending in steps ( 4021 , 4022 , 4023 ) which respectively come to lie on an upper side of the circuit board.

2. An assembly according to claim 1 , wherein the contact elements ( 805 ) situated in the circuit board plane are bent, especially bent once, and extend in an inclined fashion.

3. An assembly according to claim 1 , wherein the housing comprises lateral openings ( 4001 ), whose one boundary surface ( 4010 ) facing the circuit board ( 500 , 500 ′, 500 ″, 500 ′″) extends in steps ( 4011 , 4012 , 4013 ) for adaptation to different circuit board thicknesses, which steps respectively come to lie on an upper side of the circuit board.

4. An assembly according to claim 3 , wherein the steps ( 4021 , 4022 , 4023 ) arranged in the projection ( 4020 ) correspond to the steps ( 4011 , 4012 , 4013 ) arranged in the boundary surface ( 4010 ) of the opening ( 4001 ) in such a way that in the mounted state of the plug connector one respective pair of associated steps rest on the upper side of the circuit board.

5. An assembly according to claim 1 , wherein the steps ( 4011 , 4012 , 4013 , 4021 , 4022 , 4023 ) are set up to enable an off-center or precisely central positioning of the plug connector ( 400 ) in relation to the circuit board ( 500 , 500 ′, 500 ″, 500 ′″).

6. An assembly according to claim 1 , wherein the housing has a shielding ( 490 ).

7. An assembly according to claim 6 , wherein the shielding encloses the housing on its outside and comprises resilient contact tongues ( 491 ) which are used for fastening and making contact with the plug connector.

8. An assembly according to claim 1 , wherein the openings in the circuit board ( 200 ; 500 ; 801 ) adapted to the contact elements ( 110 , 120 ; 410 , 420 , 430 ; 805 ) are elongated openings ( 220 ; 520 , 530 ; 830 ; 840 ).

9. An assembly according to claim 8 , wherein the elongated openings ( 220 ; 520 , 530 ; 830 ; 840 ) are only partly provided with through-hole plating, especially at their end.

10. An assembly according to claim 8 , wherein the elongated openings ( 220 ; 520 , 530 ; 830 ; 840 ) comprise boreholes with through-hole plating at their end.

11. An assembly according to claim 8 , wherein the contact elements ( 420 ) situated in the circuit board plane are not bent and are set up so that they can be soldered in the elongated openings ( 520 ).

12. An assembly according to claim 1 , wherein the plug connector ( 100 ; 400 ; 800 ) comprises several contact elements ( 110 ; 120 ; 410 , 420 , 430 ; 805 ) disposed on top of one another in several levels.

13. An assembly according to claim 1 , wherein the plug connector ( 100 ; 400 ; 800 ) has a round, polygonal, oval, trapezoidal or rectangular shape.