Grounding structure of electrical connectors

Abstract

This invention relates to a grounding structure for an electrical connector, comprising: an insulating body having an internal mating space; two terminal groups installed in the mating space, each terminal group including multiple signal terminals and multiple grounding terminals, and each having a mating portion and a soldering portion, with a terminal block between the mating portion and the soldering portion; two independent grounding plates disposed in the two terminal blocks, each independent grounding plate having a main body, multiple contact portions, and multiple abutment portions; and a bridging grounding plate disposed in the two terminal blocks and located between the two independent grounding plates, the bridging grounding plate having multiple spring arms that elastically abut against the multiple abutment portions of the two independent grounding plates, thereby enabling the multiple grounding terminals of the two terminal groups, the two independent grounding plates, and the bridging grounding plate to form a common ground, effectively isolating and eliminating electromagnetic waves and crosstalk.

Claims

1. A grounding structure for an electrical connector, comprising: An insulating body having an internal mating space; two terminal groups installed on opposite sides of the mating space, each terminal group including a plurality of signal terminals and a plurality of ground terminals arranged in an alternating manner, each signal terminal and ground terminal having a mating portion bent inward from above and a soldering portion bent outward from below, and a terminal block being provided between the mating portion and the soldering portion of each terminal group; two independent grounding plates disposed in the two terminal blocks, each independent grounding plate having a main body, the main body extending outward from opposite sides having a plurality of contact portions abutting against the ground terminals of the two terminal groups, each contact portion extending upward from the top having a plurality of abutting portions; and a bridging grounding plate disposed in the two terminal blocks and located between the two independent grounding plates, the bridging grounding plate having a plurality of elastic arms extending toward the abutting portions of the two independent grounding plates and forming elastic abutting, and causing the ground terminals of the two terminal groups, the two independent grounding plates and the bridging grounding plate to form a common ground.

2. The grounding structure of the electrical connector as described in claim 1, wherein both ends of the insulating body are provided with a sliding groove and a positioning groove, the sliding groove and the positioning groove respectively for the guide spring and the positioning spring of a shielding shell to slide and position and hold, so that the shielding shell is fixed to the outside of the insulating body.

3. The grounding structure of the electrical connector as described in claim 2, wherein the shielding housing has a plurality of fixed pins at both ends that can be soldered to an external circuit board.

4. The grounding structure of the electrical connector as described in claim 1, wherein the insulating body is provided on both sides for a plurality of protrusions on the outer surface of the two terminal blocks to be fastened and fixed, and the insulating body is provided on both sides for a plurality of limiting grooves to accommodate and support the suspended ends of the mating portions of the two terminal groups.

5. The grounding structure of the electrical connector as described in claim 1, wherein the insulating body has a plurality of positioning posts at both ends downward for insertion and fixing to an external circuit board.

6. The grounding structure of the electrical connector as described in claim 1, wherein the two terminal blocks are provided with a plurality of latches arranged in two rows on their inner sides, the latches including a plurality of first latches in the lower row and a plurality of second latches in the upper row, the two terminal blocks are tightly engaged and positioned by the interlocking ribs provided on both sides of the staggered first latches, a positioning surface is formed on the top side of the first latches for the bottom side of the bridging grounding piece to abut, and the second latches can limit and fix the bridging grounding piece, and a storage groove is formed between the staggered adjacent second latches for the spring arms of the bridging grounding piece to be received and extended outward.

7. The grounding structure of the electrical connector as described in claim 1, wherein the two terminal blocks are provided with a plurality of cutouts on opposite outer sides, and the cutouts are for the signal terminals of the two terminal blocks to be exposed.

8. The grounding structure of the electrical connector as claimed in claim 1, wherein the two terminal blocks are provided with the two independent grounding plates by means of an embedded injection method, and the contact portions of the two independent grounding plates and the grounding terminals are fixed and electrically connected by means of a laser spot welding method.

9. The grounding structure of the electrical connector as claimed in claim 1, wherein the bridging grounding piece includes a positioning body located on the middle bottom side in a U-shape and abutting against a plurality of first latching blocks of the two terminal blocks, and the positioning body has elastic arms that are bent outward and have their suspended ends folded inward on both sides.

10. The grounding structure of the electrical connector as described in claim 9, wherein the spring arms are a pair of structures that are symmetrical on the left and right and bent in a V-shape towards the opposite side on the positioning body, and a push portion is formed between the two spring arms that are bent in a V-shape for contact with a preset plug-in made of a circuit board or a tongue plate, and a plurality of metal contacts on both sides of the preset plug-in contact with a plurality of signal terminals and a plurality of ground terminals and form an electrical connection, and the positioning body has a fixed space between adjacent spring arms on the same side for a plurality of second latches of the two terminal blocks to be inserted and positioned.

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