Direct plug-in connector and direct plug-in connection

1. A direct plug-in connector for making electrical contact with printed circuit boards, comprising

a housing and at least one contact, which is connected to the housing, for insertion into a first passage opening of a printed circuit board,

which first passage opening is electrically conductive on an inner wall, having at least one latching device for securing the housing on the printed circuit board,

wherein the latching device has at least one elastically resilient latching arm which is integrally connected to the housing and has a latching projection in the region of its free end,

wherein the latching arm and the housing are separated by means of an intermediate space,

wherein the housing has at least one further positioning projection which is rigidly and integrally connected to the housing and protrudes beyond a supporting face of the housing,

wherein the housing is of two-part design, wherein a first housing part is provided with the at least one latching arm and a second housing part is provided with the contact,

wherein the first housing part is designed in general in a u shape with two limbs and a base connecting the two limbs and the second housing part is accommodated between the limbs of the first housing part, and

further wherein the first housing part engages over the second housing part such that the second housing part is between the first housing part and the printed circuit board.

2. The direct plug-in connector according to claim 1 , wherein a side face of the housing and a side face of the latching arm, which side faces delimit the intermediate space, merge with one another in an arcuate manner at a connection point at which the latching arm and the housing are connected to one another.

3. The direct plug-in connector according to claim 1 , wherein the latching projection at the free end of the latching arm is directed away from the housing.

4. The direct plug-in connector according to claim 1 , wherein slope which leads onto the latching projection is provided at the free end of the latching arm.

5. The direct plug-in connector according to claim 1 , wherein the intermediate space, which separates the latching arm and the housing, runs perpendicularly to a supporting face of the direct plug-in connector on the printed circuit hoard and in a straight line.

6. The direct plug-in connector according to claim 1 , wherein the housing has a latching arm on each of two opposite side faces.

7. The direct plug-in connector according to claim 1 , wherein the housing is provided with at least one dovetail-like groove and at least one dovetail-like tongue.

8. The direct plug-in connector according to claim 1 , wherein the contact has at least one insulation-displacement contact for connection to at least one cable strand, wherein the first housing part bears against the insulation-displacement contact in the state in which the first housing part and the second housing part are connected.

9. The direct plug-in connection comprising at least one direct plug-in connector according to claim 1 and one printed circuit board comprising at least one first passage opening, which is electrically conductive on the inner wall, for inserting the contact and at least one second passage opening for inserting the latching projection and/or a positioning projection of the housing.

10. The direct plug-in connector according to claim 1 , wherein a height of the intermediate space between the supporting face and a connection point at which the latching arm and the housing are connected to one another corresponds at least to half the height of the housing.

11. The direct plug-in connector according to claim 10 , wherein a height of the intermediate space lies between half and 9/10 the height of the housing.

12. The direct plug-in connector according to claim 1 , wherein the base of the first housing part is arranged on top of an upper side of the second housing part in an assembled state of the direct plug-in connector, an upper side of the first housing part facing away from the printed circuit board when the direct plug-in connector is arranged on the printed circuit board.

13. The direct plug-in connector according to claim 12 , wherein the first housing part encompasses only the upper side and two opposite side faces of the second housing part.