EP3588684B1 - Direct connector and direct connection - Google Patents

Description

The invention relates to a direct connector for the electrical contacting of circuit boards with a housing and at least one contact connected to the housing for insertion into a first through opening of a circuit board that is electrically conductive on the inner wall. The invention also relates to a direct plug connection with at least one direct plug connector according to the invention and a printed circuit board.

From the German utility model DE 20 2016 105 358 U1 a direct plug connector for the electrical contacting of circuit boards with a housing and at least one contact connected to the housing for insertion into a first through opening of a circuit board that is electrically conductive on the inner wall is known. The direct plug connector has a latching device for securing the housing on the circuit board, the latching device having at least one elastically resilient latching arm which is integrally connected to the housing and which has a latching projection in the region of its free end, the latching arm and the housing being separated by means of a gap are. The housing also has a positioning projection rigidly and integrally connected to the housing, which protrudes beyond the bearing surface of the housing.

From the US patent U.S. 6,050,845 a direct connector for the electrical contacting of circuit boards with a housing and at least one contact connected to the housing for insertion into a first through opening of a circuit board that is electrically conductive on the inner wall is also known. The housing of the direct plug connector has a latching device for securing the housing to the circuit board, the latching device having at least one elastically resilient latching arm which is integrally connected to the housing and has a latching projection in the area of its free end. The housing has a further positioning projection that is rigidly and integrally connected to the housing and protrudes beyond the bearing surface of the housing.

The invention is intended to provide an improved direct plug connector and an improved direct plug connection.

According to the invention, a direct plug connector with the features of claim 1 or a direct plug connection with the features of claim 13 is provided for this purpose. Preferred embodiments of the invention are set out in the subclaims.

The direct connector according to the invention is intended for the electrical contacting of printed circuit boards. The direct plug connector has a housing and at least one contact connected to the housing. The contact is provided for insertion into a first through opening of a printed circuit board, which is electrically conductive on the inner wall. Such direct connectors are also referred to as SKEDD connectors. The direct plug connector has at least one latching device for securing the housing on the printed circuit board, the latching device having at least one elastically resilient latching arm which is integrally connected to the housing. The locking arm has a locking projection in the area of its free end. The latch arm and the housing are separated by a gap. The intermediate space can run perpendicular to a support surface of the direct connector on the circuit board. The space can run in a straight line. There is at least one further positioning projection rigidly and integrally connected to the housing, which protrudes beyond the bearing surface of the housing. In a surprisingly simple way, the direct plug connector according to the invention makes it possible to provide a reliable, easy-to-operate, secure hold and at the same time easy to manufacture latching device. Since the latching arm is integrally connected to the housing, the housing and latching arm can be produced together in one piece, for example by means of plastic injection molding. The locking arm can be actuated in a particularly simple manner between two fingers of a human hand.

In a further development of the invention, a height of the space between the support surface and a connection point at which the latching arm and the housing are connected to one another corresponds to at least half the height of the housing.

In this way, the latching arm is connected flexibly enough to be able to latch onto the circuit board without problems and to be able to release the latching again without any problems.

A height of the gap is advantageously between half and 9/10 of the height of the housing.

In this way, the resilient connection of the locking arm can be designed to be very movable and easily operated by hand.

In a further development of the invention, a side surface of the housing and a side surface of the latching arm, these two side surfaces delimiting the intermediate space, go on one Connection point at which the latching arm and the housing are connected to one another, arcuate into one another.

An arcuate design of the transition ensures an even distribution of forces so that no notch effects occur which could possibly damage the material in the area of the connection point. A spring rate between the latching arm and the housing can be set via a configuration of the arcuate transition, for example the height and the radius of the arc.

In a further development of the invention, the locking projection at the free end of the locking arm is directed away from the housing.

In this way, the latching projection can be unhooked by moving the latching arm towards the housing. This can be done by pressing the housing and the locking arm together between two fingers.

In a further development of the invention, an insertion bevel leading onto the locking projection is provided at the free end of the locking arm.

By means of such an insertion bevel, the latching projection and thus also the latching arm can be automatically deflected when the direct plug-in connector is pressed towards the printed circuit board. The locking projection can be deflected by being pressed in until it has passed through a through opening in the circuit board and snaps behind the opening of the through opening. The housing can then be released again from this locked position by manually deflecting the locking arm until the locking projection can again pass through the through-opening in the circuit board.

In a further development of the invention, the housing has at least one further positioning projection that is rigidly and integrally connected to the housing and protrudes beyond the bearing surface of the housing.

By means of such a positioning projection, the direct plug connector can be held in a predefined position on the circuit board, the fixation of the direct plug connector being effected in cooperation with the latching arm and the latching projection. Two positioning projections are advantageously provided so that the housing and so that the contact inserted into the through opening of the circuit board cannot be accidentally tilted, twisted and thereby damaged.

In a further development of the invention, the housing has a locking arm each on two opposite side surfaces.

Such an arrangement of the latching arms makes it possible in a particularly simple manner to press the two latching arms onto the housing and thereby disengage them from matching through openings in the circuit boards. For example, such an arrangement is selected when several contacts are arranged next to one another in a housing of a direct plug connector.

In a further development of the invention, the housing is provided with at least one dovetail groove and at least one dovetail bar.

By means of such grooves and strips, which are designed to match one another, several housings of direct plug-in connectors can be secured to one another in a form-fitting manner, and larger plugs with several contacts can also be constructed individually as a result.

According to the invention, the housing is designed in two parts, a first housing part being provided with the at least one latching arm and a second housing part with the contact.

According to the invention, the first housing part is generally U-shaped with two legs and the second housing part is received between the legs of the first housing part.

In this way, the first housing part overlaps the second housing part. Since the first housing part is provided with the at least one latching arm and the second housing part with the contact, the contact or the contacts are secured on the circuit board by the second housing part.

In a further development of the invention, the contact has at least one insulation displacement contact for connecting to at least one cable strand, the first housing part in the connected state of the first housing part and the second housing part rests on the insulation displacement contact.

In this way, the second housing part can be used to lay one or more cable strands. For example, cable strands to be applied are secured on an underside of the first housing part. If the first housing part is then pushed onto the second housing part, the cable strands are simultaneously pressed into insulation displacement contacts in the second housing part. When connected to a circuit board, the first housing part then ensures that both housing parts and the contacts are secured on the circuit board.

The problem on which the invention is based is also solved by a direct plug connection with at least one direct plug connector according to the invention and a circuit board, the circuit board having at least one electrically conductive first through opening on the inner wall for inserting the contact and at least one second through opening for inserting the locking projection and / or one Has positioning projection of the housing.

Such a direct plug-in connection is functionally reliable, easy to plug in and can also be easily removed from the circuit board again by simply unhooking the locking projections and without the aid of tools.

Fig. 1

eine Ansicht eines nicht beanspruchten Direktsteckverbinders gemäß einer ersten Ausführungsform von schräg vorne,

Fig. 2

den Direktsteckverbinder der Fig. 1 im eingesteckten Zustand auf einer Leiterplatte,

Fig. 3

den Direktsteckverbinder der Fig. 1 von vorne,

Fig. 4

den Direktsteckverbinder der Fig. 1 von unten,

Fig. 5

den Direktsteckverbinder der Fig. 1 von der Seite,

Fig. 6

den Direktsteckverbinder der Fig. 1 von schräg unten,

Fig. 7

eine Schnittansicht des Direktsteckverbinders der Fig. 2,

Fig. 8

einen Direktsteckverbinder gemäß einer Ausführungsform der Erfindung von schräg oben,

Fig. 9

einen ersten Gehäuseteil des Direktsteckverbinders der Fig. 8,

Fig. 10

den Direktsteckverbinder der Fig. 8 im eingesteckten Zustand auf einer Leiterplatte,

Fig. 11

den Direktsteckverbinder der Fig. 10 bei abgenommenem erstem Gehäuseteil von oben,

Fig. 12

den Direktsteckverbinder der Fig. 10 von der Seite,

Fig. 13

den Direktsteckverbinder der Fig. 12 in einer um 90° gedrehten Seitenansicht,

Fig. 14

den Direktsteckverbinder der Fig. 10 in einer Ansicht von schräg unten,

Fig. 15

eine Schnittansicht des Direktsteckverbinders der Fig. 12,

Fig. 16

eine Ansicht eines Direktsteckverbinders gemäß einer weiteren nicht beanspruchten Ausführungsform von schräg oben,

Fig. 17

eine Ansicht des Direktsteckverbinders der Fig. 16 von unten,

Fig. 18

eine Ansicht des Direktsteckverbinders der Fig. 16 von der Seite und

Fig. 19

eine Ansicht des Direktsteckverbinders der Fig. 16 von oben.

Further features and advantages of the invention emerge from the claims and the following description of preferred embodiments of the invention in conjunction with the drawings. Individual features of the different, illustrated embodiments can be combined with one another in any way, without the scope of the invention To exceed. This also applies if individual features without further individual features with which they are described or represented together are combined with other individual features. In the drawings show:

Fig. 1

a view of a direct connector not claimed according to a first embodiment obliquely from the front,

Fig. 2

the direct connector of the Fig. 1 when plugged in on a circuit board,

Fig. 3

the direct connector of the Fig. 1 from the front,

Fig. 4

the direct connector of the Fig. 1 from underneath,

Fig. 5

the direct connector of the Fig. 1 of the page,

Fig. 6

the direct connector of the Fig. 1 from diagonally below,

Fig. 7

a sectional view of the direct connector of Fig. 2 ,

Fig. 8

a direct connector according to an embodiment of the invention obliquely from above,

Fig. 9

a first housing part of the direct connector of the Fig. 8 ,

Fig. 10

the direct connector of the Fig. 8 when plugged in on a circuit board,

Fig. 11

the direct connector of the Fig. 10 with the first housing part removed from above,

Fig. 12

the direct connector of the Fig. 10 of the page,

Fig. 13

the direct connector of the Fig. 12 in a side view rotated by 90 °,

Fig. 14

the direct connector of the Fig. 10 in an oblique view from below,

Fig. 15

a sectional view of the direct connector of Fig. 12 ,

Fig. 16

a view of a direct connector according to a further embodiment not claimed obliquely from above,

Fig. 17

a view of the direct connector of Fig. 16 from underneath,

Fig. 18

a view of the direct connector of Fig. 16 from the side and

Fig. 19

a view of the direct connector of Fig. 16 from above.

Fig. 1 shows a direct connector 10 according to a first embodiment not claimed.

The direct plug connector 10 has a housing 12 and a contact 14 arranged in sections in the housing. The contact 14 is connected to the housing 12 within the latter. The contact 14 is designed as a so-called direct plug contact or SKEDD contact. The two spring arms of the contact 14 protruding from the underside of the housing 12 can resiliently move towards one another and away from one another again. Such a spring movement is required when the contact 14 is inserted into an electrically conductive through-opening of a printed circuit board on the inner wall. In and against the direction of insertion, in Fig. 1 that is, from top to bottom or from bottom to top, the contact 14 is fixed relative to the housing 12. The contact 14 has an in Fig. 1 invisible connection end to which a cable strand can be connected. Such a connection end can be designed, for example, as an insulation displacement contact or also as a crimp contact or in some other suitable manner.

In order to ensure that the housing is secured to the circuit board when the contact 14 is plugged in and cannot be accidentally twisted, pulled off or even moved too much relative to the circuit board, the housing is provided with two positioning projections 16, 18 in the form of at the top Truncated cone-shaped, but otherwise cylindrical pins provided over the bottom of the housing 12, which at the same time forms the bearing surface on a circuit board. The positioning pins 16, 18 engage in matching through openings in a circuit board and prevent the housing 12 from being rotated or displaced on the circuit board. Since the positioning pins 16, 18 are cylindrical except for their frustoconical insertion end, they cannot prevent the housing 12 from being pulled off the printed circuit board.

In order to lock the housing 12 on the printed circuit board, a locking arm 20 is provided which is elastically resilient and integrally connected to the housing 12 and at its free end, which is shown in FIG Fig. 1 is arranged below the support surface 22 of the housing 12, is provided with a latching projection 24. The latching arm 20 is separated from the housing by an intermediate space 26 that extends upwards from the support surface 22. The intermediate space 26 runs in a straight line and perpendicular to the support surface 22, that is also perpendicular to a printed circuit board onto which the direct plug connector 10 is plugged.

In the area of a connection point 28 at which the latching arm 20 is integrally connected to the housing 12, the intermediate space 26 is delimited by an arcuate end 30. As before Fig. 1 can be seen, the locking arm 20 can be resiliently pressed a little way towards the housing 12 and then automatically springs back into the FIG Fig. 1 location shown. When the locking arm 20 and the housing 12 move towards one another, a width of the space 26 is reduced. The curved end 30 of the space 26 prevents notch stresses occurring in the area of the connection point 28 and thus a destruction or weakening of the material in the area of the connection point 28 a design of the arch shape or also a displacement of the end 30 upwards, a spring rate between the locking arm 20 and the housing 12 can be set.

The latching projection 24 is provided with a run-on bevel 32 which is arranged in such a way that the latching projection 24 and thus also the latching arm 20 are pressed in the direction of the housing 12 when inserted into a suitable through opening of a printed circuit board Fig. 1 so to the left behind. This displacement movement takes place until the latching projection 24 is pushed completely through the circuit board and snaps with its undercut 34 behind the underside of the circuit board.

This state is in Fig. 2 shown. As can be seen, the undercut 34 of the latching projection 24 is now arranged opposite the underside of the circuit board 36 and thereby prevents the direct connector 10 from being in Fig. 2 is pulled off the circuit board 36 upwards. The contact 14 is arranged in a through opening of the circuit board 36, which is designed to be electrically conductive on its inner wall and which is electrically connected to conductor tracks, not shown, on or within the circuit board 36. The positioning pins 16, 18 are received in matching through openings of the circuit board 36 and prevent the direct connector 10 from twisting or the direct connector 10 from tilting relative to the circuit board 36. The two positioning pins 16, 18 and the locking projection 24 allow the direct connector 10 to be securely attached the circuit board 36 are fixed and Mechanical loads are kept away from the contact 14 or the electrical connection between the contact 14 and the inner wall of the through opening of the circuit board 36 as far as possible. This is also used in a lateral direction, in Fig. 2 that is, from left front to right rear or from right rear to left front, receiving the contact 14 in the housing 12 with play.

In order to remove the direct connector 10 from the circuit board 36 again, the latching arm 20 is pressed in the area above the circuit board 36 in the direction of the housing 12. The positioning pins 16, 18 in the through openings of the circuit board 36 then prevent the housing 12 from escaping. The housing 12 can also be taken between two fingers of a human hand. If the fingers are then pressed towards one another, the latching arm 20 is pressed in the direction of the housing 12. This leads to the locking projection 24 being arranged again below the through opening in the circuit board 36 into which it was inserted. As a result, the undercut 34 is no longer opposite the underside of the circuit board 36, but below the through opening. In this compressed position of the locking arm 20 and the housing 12, the direct plug connector 10 can then be pulled off the circuit board 36 upwards again.

Fig. 3 shows the direct plug connector 10 in a side view, the view being directed to the locking arm 20. The locking projection 24 with the undercut 34 can be seen on the, in Fig. 3 lower, free end of the locking arm 20. In addition, the positioning pins 16, 18, which extend from the support surface 22 of the housing 12, can be seen. The contact 14 is covered by the latching projection 24 in this view.

Fig. 4 shows a view of the direct connector 10 from below. In this view, the gap 26 between the housing 12 and the latching arm 20 can be seen. If the latching arm 20 is pressed in the direction of the housing 12, the width of the gap 26 is reduced because the latching arm 20 then bends slightly below the connection point 28 , and the locking projection 24 is also displaced in the direction of the housing 12.

At the in Fig. 4 A groove 40 with a dovetail-shaped cross section can be seen on the right side surface of the housing 12. A dovetail-shaped projection 42 can be seen on the opposite side surface of the housing 12. If two of the direct plug connectors 10 are arranged next to one another, the projection 42 of the right direct plug connector 10 can be pushed into the groove 40 of the left direct plug connector. As a result, the housings 12 of two or more direct plug connectors 10 can be connected to one another secured. This allows direct plug-in connectors with a plurality of contacts 14 to be of a modular design in a simple manner.

Fig. 5 shows the direct connector 10 in a side view. The positioning pin 18 completely covers the rear positioning pin 16 and partially covers the contact 14. The locking arm 20 and the locking projection 24 at the lower end of the locking arm 20 can be seen. The gap 26 between the locking arm 20 and the housing 12, the upper end of which is arcuate at the connection point between the locking arm 20 and the housing 12, can also be seen.

Fig. 6 shows the direct connector 10 in a view obliquely from below.

Fig. 7 FIG. 11 shows a sectional view of the direct plug connector 10 in the inserted state on the circuit board 36.

The contact 14 is now inserted into a through opening 38 in the circuit board 36, the inner wall of which is electrically conductive and which is connected to a conductor track (not shown) on or within the circuit board 36.

The latching projection 24 at the free end of the latching arm 20 has been snapped into a further through opening 40 so that the undercut 34 is arranged opposite the underside of the circuit board 36. To the direct connector 10 starting from the in Fig. 7 To solve the position shown from the circuit board 36, the locking arm 20 in Fig. 7 to be pressed to the right on the housing 12. The locking arm 20 has to be displaced in the direction of the housing 12 until the undercut 34 is arranged below the through opening 40. In this state, the direct connector 10 can then be removed from the circuit board 36, in Fig. 7 to the top.

Fig. 8 shows a direct connector 50 according to the invention.

The direct plug connector 50 has a housing 52 which has a first housing part 54 and a second housing part 56. The first housing part 54 is U-shaped and has two locking arms 60a, 60b on opposite outer sides of the housing, which on their, in Fig. 8 lower end are each provided with a locking projection 64a, 64b. The locking projections 64a, 64b are directed away from one another. In order to insert the locking projections 64a, 64b into matching through openings in an in Fig. 8 In order to be able to lock in the printed circuit board (not shown), the locking arms 60a, 60b must therefore be moved towards one another. Everyone who Latching projections 64a, 64b are provided with a bevel. The latching arms 60a, 60b are each separated from the housing 64 by an intermediate space 66a, 66b, which ends in an arc shape in the region of the respective connection point between the housing 54 and the latching arms 60a, 60b. The intermediate spaces 66a, 66b extend from a support surface 55 of the housing 54 to a height of approximately 8/10 to 9/10 of the housing 54. The connection point between the latching arm 60a or the latching arm 60b and the housing 54 is therefore comparative designed to be soft, so that the latching arms 60a, 60b can be pressed towards the housing 54 without any problems.

The second housing part 56 is provided with a total of four contacts 14a, 14b, 14c and 14d, the contacts 14a to 14d in the view of FIG Fig. 8 partially cover. In addition, the second housing part 56 is provided with two positioning pins 56, 58. The positioning pins 56, 58 are designed as cylindrical pins with frustoconical free ends and each have a central slot 68. The positioning pins 56, 58 can thereby be slightly compressed at the level of the slot 68. The positioning pins 56, 58 are each provided with a latching projection 70 on their outside. This latching projection is significantly smaller than the latching projections 64a, 64b and is only intended to ensure a slight clamping effect or latching effect in the associated through-openings of the circuit board.

Fig. 9 shows only the first housing part 54. The U-shape of the first housing part 54 with the two locking arms 60a, 60b can be clearly seen. The underside of the base of the first housing part 54, which in the connected state of the two housing parts 54, 56 faces the second housing part 56, is provided with positioning devices 72 for cable strands. The positioning devices 72 can, for example, also be provided for the individual cable strands of a flat cable. A flat cable is inserted into the positioning devices 72 and thereby secured against slipping. If the first housing part 54 is then pushed onto the second housing part 56 until the in Fig. 8 is reached, the upper ends of the contacts 14a to 14d designed as insulation displacement contacts penetrate into matching through openings in the base of the first housing part 54 and cut through the insulation of the cable strands of the flat cable. By simply sliding the first housing part 54 onto the second housing part 56, the cable strands of a flat cable can be contacted and fixed.

The second housing part 56 is in Fig. 8 non-recognizable locking hooks are provided, which then fit into matching undercuts 74 on the inner sides of the legs of the first housing part 54 engage and thereby secure the first housing part 54 to the second housing part 56. In this mutually secured state of the two housing parts 54, 56, in which, as described, cable strands are also already contacted, the direct plug connector 50 can then be placed on a circuit board 36, as in FIG Fig. 10 is shown.

Fig. 11 FIG. 10 shows the direct connector 50 of FIG Fig. 10 from above. In this view, the through openings in the first housing part 54 and the contacts 14a, 14b, 14c and 14d arranged therein can be seen. In the view of the Fig. 11 if you look at the upper ends of the contacts 14a to 14c designed as insulation displacement contacts. The cable strands of a flat ribbon cable are not shown for the sake of clarity.

Fig. 12 FIG. 10 shows the direct connector 50 of FIG Fig. 10 of the page. It can be clearly seen that the two latching hooks 64a, 64b with their respective undercuts lie opposite the underside of the circuit board 36. In order to remove the direct connector 50 from the circuit board 36 again, the two latching arms 60a, 60b would have to be pressed towards one another until the latching projections 64a, 64b are arranged completely below the associated through-openings in the circuit board 36.

Fig. 13 FIG. 10 shows the direct connector 50 of FIG Fig. 10 of the page.

Fig. 14 FIG. 10 shows the direct connector 50 of FIG Fig. 10 from diagonally below. In this view it can be clearly seen that the latching projections 64a, 64b engage behind the circuit board 36. It can also be clearly seen how the positioning pins 57 and 58 engage in matching through openings in the circuit board 36.

Fig. 15 FIG. 10 shows the direct connector 50 of FIG Fig. 10 in a sectional view. The cutting plane goes through the locking projections 64a, 64b.

Fig. 16 shows a further direct connector 80 according to a further unclaimed embodiment of the invention in the plugged state onto a circuit board 36. The direct connector 80 is provided with a housing 82 which is integrally connected to a locking arm 90, at the lower free end of which a locking projection 94 is arranged .

Fig. 17 shows the circuit board 36 of FIG Fig. 16 from below, the direct connector 80 being largely covered. The latching projection 94 can be seen, which lies with its undercut opposite the underside of the circuit board 36 and previously by a matching one

Through-opening 96 in the circuit board 36 was pushed through. The housing 82 is provided with two positioning pins 98, 100, which have also been inserted into matching through openings in the circuit board 36. The contacts 14 of the direct plug connector 80 have also been pushed into a matching through opening 102 of the circuit board 36, which is designed to be electrically conductive on its inner wall.

Fig. 18 FIG. 10 shows the direct connector 80 of FIG Fig. 16 in a side view. Between the locking arm 90 and the housing 82 there is an intermediate space 86 which ends in an arc shape in the area of the connection point at which the locking arm 90 and the housing 82 are integrally connected to one another. The housing 82 and the latching arm 90 can, for example, be produced in one piece by means of plastic injection molding.

Fig. 19 shows the direct connector 80 in a view from above. At the in Fig. 19 On the left side surface of the housing 82, two projections 88, dovetailed in cross section, can be seen. If a plurality of housings 82 are to be arranged next to one another and connected to one another, the projections 88 can be adapted in Fig. 19 but not recognizable grooves on the in Fig. 19 right side face of a further housing 82 are inserted.

Claims (13)

1. Direct plug-in connector (50) for making electrical contact with printed circuit boards, comprising a housing (52) and at least one contact (14), which is connected to the housing (52), for insertion into a first passage opening of a printed circuit board (36), which first passage opening is electrically conductive on the inner wall, having at least one latching device for securing the housing (52) on the printed circuit board (36), wherein the latching device has at least one elastically resilient latching arm (60a, 60b) which is integrally connected to the housing and has a latching projection (64a, 64b) in the region of its free end, wherein the latching arm (60a, 60b) and the housing (52) are separated by means of an intermediate space (66a, 66b), and wherein the housing (52) has at least one further positioning projection (56, 58) which is rigidly and integrally connected to the housing (52) and protrudes beyond the supporting face (72) of the housing (52),
   characterized in that
   the housing (52) is of two-part design, wherein a first housing part (54) is provided with the at least one latching arm (60a, 60b) and a second housing part (56) is provided with the contact (14a, 14b, 14c, 14d), in that the first housing part (54) 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 in that the first housing part (54) engages over the second housing part (56).
2. Direct plug-in connector according to claim 1, characterized in that a height of the intermediate space (66a, 66b) between the supporting face (72) and a connection point at which the latching arm (60a, 60b) and the housing (52) are connected to one another corresponds at least to half the height of the housing (52).
3. Direct plug-in connector according to claim 2, characterized in that a height of the intermediate space (66a, 66b) lies between half and 9/10 the height of the housing (52).
4. Direct plug-in connector according to at least one of the preceding claims, characterized in that a side face of the housing (52) and a side face of the latching arm (60a, 60b), which side faces delimit the intermediate space (66a, 66b), merge with one another in an arcuate manner at a connection point at which the latching arm (60a, 60b) and the housing (52) are connected to one another.
5. Direct plug-in connector according to at least one of the preceding claims, characterized in that the latching projection (64a, 64b) at the free end of the latching arm (60a, 60b) is directed away from the housing (52).
6. Direct plug-in connector according to at least one of the preceding claims, characterized in that an insertion slope which leads onto the latching projection (64a, 64b) is provided at the free end of the latching arm (60a, 60b).
7. Direct plug-in connector according to at least one of the preceding claims, characterized in that the intermediate space (66a, 66b), which separates the latching arm (60a, 60b) and the housing (52), runs perpendicularly to a supporting face (72) of the direct plug-in connector on the printed circuit board (36) and in a straight line.
8. Direct plug-in connector according to at least one of the preceding claims, characterized in that the housing (52) has a latching arm (60a, 60b) on each of two opposite side faces.
9. Direct plug-in connector according to at least one of the preceding claims, characterized in that the housing (82) is provided with at least one dovetail-like groove and at least one dovetail-like tongue (88).
10. Direct plug-in connector according to one of the preceding claims, characterized in that the contact (14) has at least one insulation-displacement contact for connection to at least one cable strand, wherein the first housing part (54) bears against the insulation-displacement contact in the state in which the first housing part (54) and the second housing part (56) are connected.
11. Direct plug-in connector according to one of the preceding claims, characterized in that the base of the first housing part (54) is arranged on top of an upper side of the second housing part (56) in an assembled state of the first housing part (54) and the second housing part (56), wherein the upper side of the second housing part (56) is facing away from a printed circuit board (36) when the direct plug-in connector is arranged on the printed circuit board (36).
12. Direct plug-in connector according to claim 11, characterized in that the first housing part (54) encompasses exclusively the upper side and the two opposite side faces of the second housing part (56).
13. Direct plug-in connection, comprising at least one direct plug-in connector (50) according to at least one of the preceding claims and one printed circuit board (36) comprising at least one first passage opening, which is electrically conductive on the inner wall, for inserting the contact (14) and at least one second passage opening for inserting the latching projection (64a, 64b) and/or a positioning projection (56, 58) of the housing (52).

Images