Wire connector and its manufacturing method

Abstract

This invention relates to a wire-end connector and its manufacturing method, comprising a base, an impedance matching element, two shielding plates, and an insulating body. The base is provided with a plurality of conductive terminals in injection-molded first and second terminal blocks, and the signal terminals of these conductive terminals are correspondingly soldered to a plurality of cables. The impedance matching element disposed between the first and second terminal blocks includes an injection-molded conductive plastic and a grounding plate that contact the grounding terminals. Shielding plates are mounted on both the first and second terminal blocks, and the two shielding plates are electrically contacted at the grounding terminals and the impedance matching element to form a common ground. The base, impedance matching element, two shielding plates, and a plurality of cables can be assembled into an insulating body in a single position to achieve good high-frequency signal transmission.

Claims

1. A wire-end connector, comprising: A base includes a first terminal block and a second terminal block, each containing a plurality of conductive terminals formed by in-mold injection molding. These conductive terminals include signal terminals and grounding terminals, with their two sides located at tongue positions and base positions on the first and second terminal blocks, respectively. The signal terminals are soldered to the signal cores of a plurality of cables. An impedance matching element is disposed between the first and second terminal blocks, comprising conductive plastic and a grounding plate electrically contacting the grounding terminals. Two shielding plates are mounted on the first and second terminal blocks, forming a common ground at points electrically contacting the grounding terminals and the impedance matching element. An insulating body is disposed outside the base, the impedance matching element, and the two shielding plates.

2. The wire connector as claimed in claim 1, wherein the impedance matching element includes a grounding plate and an in-mold injection-molded conductive plastic, the surface of the conductive plastic further including a plurality of front bumps and a plurality of rear bumps, and a plurality of spring arms that contact the plurality of grounding terminals are formed at the location where the grounding plate is exposed in the conductive plastic.

3. The wire connector as claimed in claim 1, wherein the first terminal block and the second terminal block of the base include a base and a tongue plate extending from the base, and a snap and a groove are formed on each side of the base to allow the first terminal block and the second terminal block to engage and fix each other.

4. The wire connector as claimed in claim 3, wherein a baffle is formed on the base near the tongue to prevent the conductive terminals from warping, and a plurality of wire slots are formed on the rear side of the base for positioning the cables, and a cutout is formed between the baffle and the wire slot to expose the solder joints of the conductive terminals and the cables.

5. The wire connector as claimed in claim 4, wherein the base of the first terminal block and the second terminal block near the cutout portion is provided with a plurality of positioning tabs that allow the rear ends of the grounding terminals to protrude upwards to isolate the cables.

6. The wire connector as claimed in claim 4, wherein the baffle has a plurality of through holes, the grounding terminals have a plurality of positioning grooves formed at the through holes, and the baffle further has a plurality of hollow through holes located above the signal terminal of the conductive terminals.

7. The wire connector as claimed in claim 1, wherein the plurality of cables further comprises a plurality of grounding cores, and the plurality of grounding cores are soldered to corresponding grounding terminals.

8. The wire connector as claimed in claim 1, wherein each pair of signal terminals and ground terminals of the conductive terminals are arranged in an alternating manner.

9. The wire connector as claimed in claim 1, wherein the front end of the tongue plate formed by the first terminal block and the second terminal block is further provided with a fixing cover that is fixed by mutual engagement and fixation through a plurality of slots and a plurality of blocks.

10. A method for manufacturing a wire-end connector, comprising the following steps: S1. Providing a strip of conductive terminals and injecting it through a mold to form a first terminal block and a second terminal block, wherein the conductive terminals are respectively located at a tongue position and a base position on the first terminal block and the second terminal block, and the conductive terminals formed by trimming the strip include signal terminals and ground terminals; S2. Soldering a plurality of cables onto the first terminal block and the second terminal block at the rear ends of the conductive terminals, the cables including a plurality of signal wire cores soldered to the signal terminals; S3. Installing an impedance matching element between the first terminal block and the second terminal block, the impedance matching element including conductive plastic that is electrically contacting the ground terminals and a grounding plate, and assembling the first terminal block and the second terminal block to form a base; S4. A shielding plate is installed on the first terminal block and the second terminal block respectively. The two shielding plates are electrically connected to the grounding terminals and the impedance matching element to form a common ground. S5. The assembly structure of the base, the impedance matching element, the two shielding plates and the plurality of cables is pushed into the receiving cavity inside the insulating body by a preset pushing fixture and is locked in place.

11. A method of manufacturing a wire-end connector as claimed in claim 10, wherein the impedance matching element includes a grounding plate and an in-mold injection-molded conductive plastic, the surface of the conductive plastic further including a plurality of front bumps and a plurality of rear bumps, and a plurality of spring arms that contact the plurality of grounding terminals are formed at the location where the grounding plate is exposed in the conductive plastic.

12. The method of manufacturing a wire connector as claimed in claim 10, wherein the first terminal block and the second terminal block of the base include a base and a tongue plate extending from the base, and a snap and a groove are formed on each side of the base to engage and fix the first terminal block and the second terminal block to each other.

13. A method of manufacturing a wire-end connector as claimed in claim 12, wherein a baffle is formed on the base in the direction near the tongue to prevent the conductive terminals from warping, and a plurality of wire grooves for positioning the cables are formed on the rear side of the base, and a cutout is formed between the baffle and the wire frame to expose the solder joints of the conductive terminals and the cables.

14. A method of manufacturing a wire-end connector as claimed in claim 13, wherein a plurality of positioning pieces are provided on the base of the first terminal block and the second terminal block near the cutout portion, allowing the rear ends of the grounding terminals to protrude upwards to isolate the cables.

15. A method of manufacturing a wire-end connector as claimed in claim 13, wherein the baffle has a plurality of through holes, the grounding terminals have a plurality of positioning grooves formed at the through holes, and the baffle further has a plurality of hollow through holes located above the signal terminals of the conductive terminals.

16. A method of manufacturing a wire-end connector as claimed in claim 10, wherein the plurality of cables further comprises a plurality of grounding cores, and the plurality of grounding cores are soldered to corresponding grounding terminals.

17. A method of manufacturing a wire-end connector as claimed in claim 10, wherein each pair of signal terminals and ground terminals of the conductive terminals are arranged in an alternating manner.

18. A method of manufacturing a wire connector as claimed in claim 10, wherein the front end of the tongue plate formed by the first terminal block and the second terminal block is further provided with a fixing cover that is fixed by mutual engagement through a plurality of slots and a plurality of blocks.

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