| 摘要 |
A receptacle connector includes a first terminal assembly, a second terminal assembly mounted on the first terminal assembly with front parts of second terminals being located over front parts of first terminals, a tongue board assembly mounted between the first terminal assembly and the second terminal assembly, and an insulating housing molded outside the first terminal assembly, the second terminal assembly and the tongue board assembly. The tongue board assembly includes an insulating body positioning the front parts of the first terminals and the second terminals in bottom and top faces thereof. Front ends of the first terminals and the second terminals are exposed outside top and bottom faces of a tongue board of the insulating housing, wherein the tongue board together with the front ends of the first terminals and the second terminals are about a horizontal center plane of the tongue board. |
| 主权项 |
1. A receptacle connector, comprising:
a first terminal assembly including a first housing and a plurality of first terminals integrated with the first housing, the first terminals being arranged in horizontal transverse direction in front of the first housing and being arranged in vertical front and rear rows under the first housing; a second terminal assembly including a second housing and a plurality of second terminals integrated with the second housing, a rear of a bottom face of the second housing protruding downward to form an extending portion, the second terminals being arranged in horizontal transverse direction in front of the second housing and being arranged in horizontal transverse direction under the extending portion, the second terminal assembly being mounted downward onto the first terminal assembly, wherein the second housing is fastened upon the first housing, the extending portion is positioned in rear of the first housing, the second terminals are located over and behind the first terminals; a tongue board assembly mounted between the first terminal assembly and the second terminal assembly, the tongue board assembly including an insulating body and a middle shielding sheet integrated with the insulating body, a rear of the middle shielding sheet being clamped between the first housing and the second housing, the insulating body being located in front of the first housing and the second housing to position the first terminals and the second terminals into a bottom face and a top face of the insulating body respectively; an insulating housing having a base portion molded outside the first housing, the rear of the middle shielding sheet and the second housing, a front face of the base portion protruding frontward to form a tongue board molded outside the insulating body together with the first terminals and the second terminals, front ends of the first terminals and the second terminals being respectively exposed outside top and bottom faces of the tongue board, tail ends of the first terminals and the second terminals projecting beyond a bottom face of the base portion; a shielding shell worn around the insulating housing; and a shielding sheet assembly covering on the second terminal assembly and under the first terminal assembly, the insulating housing being further molded outside the shielding sheet assembly; wherein the first terminals each has a first contact portion, a rear end of the first contact portion extends downward to form a first soldering portion perpendicular to the first contact portion, the rear end of the first contact portion and a top end of the first soldering portion are molded in the first housing, a front part of the first contact portion projects in front of the first housing, a tail end of the first soldering portion projects under the first housing, the top face and the bottom face of a front of the insulating body protrude upward and downward respectively to form a plurality of third positioning lumps arranged in transverse direction of the insulating body, the top face and the bottom face of a rear of the insulating body protrude upward and downward respectively to form a plurality of fourth positioning lumps arranged in transverse direction and corresponding to the third positioning lumps, each two adjacent third positioning lumps and two adjacent fourth positioning lumps corresponding to the said third positioning lumps of the bottom face of the insulating body define a first terminal groove therebetween, each two adjacent third positioning lumps and two adjacent fourth positioning lumps corresponding to the said third positioning lumps of the top face of the insulating body define a second terminal groove therebetween, the second terminals each has a second contact portion, a rear end of the second contact portion extends downward to form a fastening portion perpendicular to the second contact portion, a bottom end of the fastening portion is bent rearward to form a second soldering portion, the rear end of the second contact portion of the second terminal is molded in the second housing and a front part of the second contact portion of the second terminal projects in front of the second housing, the fastening portion is molded in the second housing and the extending portion, the second soldering portion of the second terminal is located under the extending portion, the front parts of the first contact portions of the first terminals are held in the first terminal grooves, the front parts of the second contact portions of the second terminals are held in the second terminal grooves; wherein two sides of a top face of the first housing protrude upward to form a pair of second positioning lumps, two opposite laterals of the first housing protrude outward to form a pair of first buckling lumps under the second positioning lumps, the middle shielding sheet includes a middle sheet having a middle plate, a rear of the middle plate projects behind the fourth positioning lumps and covers the top face of the first housing, two opposite sides of the rear of the middle plate are bent downward to form a pair of buckling plates, each of the buckling plates is opened with a first buckling hole through which the second positioning lump and the corresponding first buckling lump pass upward, the buckling plate is buckled under the first buckling lump, two opposite sides of a front of the second housing protrude outward and then extend downward to form a pair of buckling portions, each of the buckling portions is opened with a second buckling hole, the second housing presses on the rear of the middle plate, the second positioning lump and the first buckling lump are received in the second buckling hole, the second housing is held between the second positioning lumps, the buckling portions are against outsides of the buckling plates respectively and are buckled under the first buckling lumps. |
