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 has a plurality of conductive terminals formed by in-mold injection molding of first and second terminal blocks. 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 conductive plastic electrically contacting the grounding terminals and grounding plates on the two surfaces of the conductive plastic. Shielding plates are mounted on both the first and second terminal blocks, and the two shielding plates electrically contact the grounding terminals and the impedance matching element to form a common ground. The aforementioned components can be assembled into the insulating body for positioning, thereby achieving 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 both sides of the conductive terminals located on the exterior of the first and second terminal blocks, and the signal terminals 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 electrically contacting the grounding terminals and grounding plates on two surfaces of the conductive plastic. Two shielding plates are mounted on the first and second terminal blocks, each shielding plate forming a common ground at points electrically contacting the grounding terminals and the impedance matching element. An insulating body is disposed outside the base and the two shielding plates, and the insulating body contains tongue plates for positioning the conductive terminals.

2. The wire connector as claimed in claim 1, wherein the two grounding plates include a plurality of spring arms with upper and lower surfaces in contact with the grounding terminals, and the spring arms are formed in the two grounding plates to bend outward.

3. The wire connector as claimed in claim 1, wherein the two grounding plates are provided with a plurality of through holes, and the two surfaces of the conductive plastic are provided with corresponding protrusions passing through the plurality of through holes, and the protrusions are in contact with the corresponding grounding terminals.

4. The wire connector as described in claim 1, wherein the conductive plastic and the two grounding plates are fixed by a plurality of locking blocks at corresponding plurality of limiting grooves.

5. The wire connector as claimed in claim 3, wherein the conductive plastic has a plurality of through holes formed on the other side of the protrusions for a plurality of fixing posts of the first terminal block and the second terminal block to pass through, and each of the two grounding plates has a plurality of positioning grooves for engaging and fixing the fixing posts and a plurality of through slots for the fixing posts to pass through, and at least one positioning spring is provided on each side of the two grounding plates that can be electrically connected to each other.

6. The wire connector as described in claim 1, wherein at least one latch is provided on both sides of the first terminal block and the second terminal block of the base, and the shielding plate is provided with slots on both sides corresponding to the latches for the latches to engage and fix.

7. The wire connector as claimed in claim 1, wherein the rear side of the bottom surface of the first terminal block and the second terminal block of the base is fixed by a plurality of locking pins engaging with corresponding plurality of locking slots.

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, further comprising a fixing body and the fixing system consisting of an upper cover and a lower base, wherein a cable passage cavity is formed between the cover and the base for the cables to pass through, and the fixing system is mounted outside the two shielding plates and the cables.

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 on the outer side of 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 end 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 electrically contacting the ground terminals and grounding plates positioned on the two surfaces of the conductive plastic, 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 in contact with the grounding terminals and the impedance matching element to form a common ground. The fixing body is installed on the outside of the two shielding plates and the cables to form a positioning. S5. The assembly structure of the base, the impedance matching element, the two shielding plates, the plurality of cables and the fixing body is pushed into the receiving cavity inside the insulating body by a preset pushing jig and formed a fixed connection. The conductive terminals are inserted and positioned in the inner tongue plate position of the insulating body to complete the assembly of the wire end connector.

11. A method of manufacturing a wire-end connector as claimed in claim 10, wherein the two grounding plates include a plurality of spring arms with upper and lower surfaces in contact with the grounding terminals.

12. A method of manufacturing a wire-end connector as claimed in claim 10, wherein the two grounding plates are provided with a plurality of through holes, and the two surfaces of the conductive plastic are provided with corresponding bumps passing through the plurality of through holes, and the bumps are in contact with the corresponding grounding terminals.

13. A method of manufacturing a wire-end connector as described in claim 10, wherein the conductive plastic and the two grounding plates are fixed by a plurality of locking blocks at corresponding plurality of limiting grooves.

14. A method for manufacturing a wire connector as claimed in claim 12, wherein the conductive plastic has a plurality of through holes formed on the other side opposite to the protrusions for a plurality of fixing posts of the first terminal block and the second terminal block to pass through, and each of the two grounding plates has a plurality of positioning grooves for engaging and fixing the fixing posts and a plurality of through slots for the fixing posts to pass through, and at least one positioning spring is provided on each side of the two grounding plates that can be electrically connected to each other.

15. A method for manufacturing a wire-end connector as described in claim 10, wherein at least one snap fastener is provided on both sides of the first terminal block and the second terminal block of the base, and the shielding plate has slots on both sides corresponding to the snap fasteners for engaging and fixing the snap fasteners.

16. A method of manufacturing a wire connector as described in claim 10, wherein the rear side of the bottom surface of the first terminal block and the second terminal block of the base is fixed by a plurality of locking pins engaging with corresponding plurality of locking slots.

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