Patent Application
20190207348
The invention is related to an electrical connection, and particularly to an electrical connector having integral securement among the outer shell, the grounding bar and the shielding/grounding blade not only for the mechanical strength consideration but also for the electrical performance consideration of the whole connector.
U.S. Pat. No. 9,647,395 discloses the electrical connector having the shielding/grounding blade and the grounding bar each of which is equipped with a pair of horizontally extending securing/soldering pads at two opposite ends. Anyhow, it is relatively difficult to solder/weld those parts together with the mounting pads of the outer shell. It is desired to have an electrical connector equipped with the shielding/grounding blade and the grounding bar having thereof the corresponding securing sections which can be easily and securely fixed to the metallic outer shell in a reliable manner.
An electrical connector assembly includes an electrical connector and the associated two rows of wires. The connector includes an insulative housing, two rows of contacts retained in the housing, and a metallic shell enclosing the housing. The housing forms a mating cavity. The contact includes a contacting section extending into the mating cavity, and a connecting section exposed outside of the housing. The wire includes an inner conductor soldered to the connecting section of the corresponding contact, and an outer conductor or grounding layer. An insulative block/spacer is attached to a back side of the housing integrally with a metallic shielding/grounding blade therein. The shielding/grounding blade includes a pair of securing legs at two ends in the transverse direction. A pair of grounding bars are soldered to the outer conductors of the two rows of wires, respectively. Each of the grounding bars includes a pair of securing legs at two ends in the transverse direction. Both the securing legs of the shielding/grounding blade and those of the grounding bars are secured to interior surfaces of the two side walls of the outer shell.
An electrical connector assembly 300 includes an electrical connector 100 and two rows of wires 200. The connector 100 includes an insulative housing 1, two rows of contacts 2 retained in the housing 1, and a metallic outer/primary shell 3 enclosing the housing 1.
The housing 1 includes a top wall 11, a bottom wall 12 opposite to the top wall 11 in the vertical direction, a pair of side walls 13 connected at two opposite ends of the top wall 11 and the bottom wall 12 in the transverse direction perpendicular to the vertical direction. A mating cavity 14 is formed by the top wall 11, the bottom wall 12 and the pair of side walls 13. A plurality of passageways (not labeled) are formed in each of the top wall 11 and the bottom wall 12. Each contact 2 has a front contacting section 21 forwardly extending into the mating cavity 14, and a connecting section 22 rearwardly extending outside of the housing 1. The housing 1 forms a flange 15 against which the front edge of the outer shell 3 abuts. A pair of guiding posts 131 extend rearward at two opposite ends of the rear side of the housing 1 with corresponding guiding slits 132 communicating rearwardly with an exterior.
The connector 100 further includes an insulative block/spacer 4 secured to a back side of the housing 1 with a metallic shielding/grounding blade 5 integrally formed therein via an insert-molding process. The insulative block 4 includes a plurality of dividers 41 on opposite upper and bottom surfaces so as to form corresponding slots (not labeled) between every adjacent two dividers 41. The connecting sections 22 of the contacts 2 are disposed in the corresponding slots, respectively. The insulative block 4 further includes a pair of extensions 42 and a pair of supporting platforms 43 at two opposite ends in the transverse direction.
The shielding/grounding blade 5 includes a main plate (not labeled) and a pair of exposed vertically extending securing legs 51 at two opposite ends. A plurality of spring fingers 52 extend from the main plate into the mating cavity 14, and a pair of lances extending from the main plate and retained in the housing 1 to attach the insulative block 4 to a back side of the housing 1. The securing leg 51 extending through the corresponding guiding slit 132, is exposed upon the corresponding side wall 13. The extension 42 is located behind the corresponding guiding post 131.
The wire 200 includes an inner conductor 201, an inner insulator 202, an outer conductor or grounding layer 203 and an outer insulator 204. The inner conductor 201 is connected to the connecting section 22 of the corresponding contact 2. The wires include differential signal wires and the grounding wires alternately arranged with each other along the transverse direction. A pair of grounding bars 6 are soldered to the outer conductors 203 of the two rows of wires 200, respectively. Each grounding bar 6 extends in the transverse direction to be soldered with the outer conductors 203 of all the wires 200 in the same row. Each grounding bar 6 includes a base 61, a plurality of spring tags 62 selectively connecting to the inner conductors 201 of the grounding wire 200, and a pair of securing legs 63 vertically extending at two opposite ends in the transverse direction toward the shielding/grounding blade 5. In this embodiment, the securing leg 63 of the upper grounding bar 6 and that of the lower grounding bar 6 are aligned with each other in the vertical direction. The base 61 of the grounding bar 6 is seated upon the extension 42 behind the guiding post 43 but in front of the supporting platform 43, and the securing leg 63 is exposed upon the side face of the extension 42.
The metallic outer shell 3 has a top plate 31 covering the top wall 11, a bottom plate 32 covering the bottom wall 12, and a pair of side plates 33 covering the side walls 13. In this embodiment, the top plate 31 is shorter than the bottom plate 32 in the front-to-back direction.
A metallic rear cover 7 is located behind the top plate 31. The rear cover 7 includes a main body 71 covering the insulative block 4, a pressing section 72 pressing the wires 200, a pair of vertically extending securing legs 73 at two opposite ends of the main body 71 to abut against the side faces of the corresponding platforms 43. The securing leg 51 of the shielding/grounding blade 5, the securing leg 63 of the grounding bar 6, and the securing leg 73 of the rear cover 7 are sequentially exposed upon the side face of the combination of the housing 1 and the insulative block 4. All three securing legs 51, 63 and 73 are secured to an interior surface of the side plate 33 of the shell 3 via either welding or soldering. The main body 71 of the rear cover 7 is further secured to the top plate 31 of the shell 3 via welding or soldering.
In brief, the securement between the securing legs 51/63/73 and the shell 3 not only enhances the mechanical strength thereof but also the electrical shielding performance
While a preferred embodiment according to the present disclosure has been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present disclosure are considered within the scope of the present disclosure as described in the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201820005751.6 | Jan 2018 | CN | national |
