Latching system for establishing a latching connection between a printed circuit board and an edge-contact plug, printed circuit board, edge- contact plug and add-on part
The present invention relates to a latching system, including a printed circuit board and an edge-contact plug, for establishing a latching connection between the printed circuit board and the edge-contact plug, including two retaining arms, each having a latch, the edge-contact plug including two mating latches for establishing the latching connection with the latch. The mating latches being formed on two different outer sides of the edge-contact plug as a set-back portion on the outer sides in each case, and the latches being able to engage with the set-back portions on the outer sides to establish the latching connection.
1 . A latching system to establish a latching connection between a printed circuit board and an edge-contact plug, the latching system comprising:
an add-on part, including a fastening surface for fastening the add-on part to the printed circuit board, and the add-on part including two retaining arms, each having a latch; and
two mating latches being formed on the edge contact plug to establish the latching connection with each latch of the two retaining arms, the two mating latches each being formed as a set-back portion on two different outer sides of the edge-contact plug,
wherein the latches of the two retaining arms of the add-on part are adapted to engage with the set-back portions on the outer sides of the edge-contact plug to establish the latching connection, and
wherein the add-on part further includes terminals that connect to the edge-contact plug when the latching connection is established between the printed circuit board and the edge-contact plug.
2 . The latching system according to claim 1 , wherein each latch of the two retaining arms have a wedge-shaped latching tab.
3 . The latching system according to claim 1 , wherein the set-back portions are each provided with a notch-shaped design.
4 . The latching system according to claim 1 , wherein the set-back portions are each provided with a stepped design.
5 . The latching system according to claim 1 , wherein the edge-contact plug has an upper side, a lower side, a contact side, a back side, and the two outer sides, and wherein the set-back portions each extend up to the upper side and/or to the lower side.
6 . The latching system according to claim 5 , wherein the set-back portions extend continuously over an entire height of the edge-contact plug from the upper side to the lower side.
7 . The latching system according to claim 1 , wherein the retaining arms extend beyond an edge contour of the printed circuit board in the manner of a projection.
8 . The latching system according to claim 1 , wherein the mating latches are designed as a one-piece and/or monolithic component of the edge-contact plug.
9 . The latching system according to claim 1 , wherein the edge-contact plug has an upper side, a lower side, a contact side, a back side, and the two outer sides, wherein a width of the edge-contact plug between the two outer sides being consistently smaller in a region between the set-back portion and the back side than in a region between the set-back portion and the contact side.
10 . An add-on part for the latching system according to claim 1 , the add-on part comprising:
the fastening surface for fastening the add-on part to the printed circuit board;
the two retaining arms, each having the latch to establish the latching connection in the set-back portions on the outer sides the edge-contact plug; and
the terminals that connect to the edge-contact plug when the latching connection is established between the printed circuit board and the edge-contact plug.