Electrical connector

Patent metadata

Field	Value
Publication number	US-11349261-B2
Application number	US-202117144164-A
Country	US
Kind code	B2
Filing date	Jan 8, 2021
Priority date	Jan 8, 2020
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

An electrical connector includes an insulative elongated housing, and a plurality of contacts retained to the housing. The housing includes a base extending along the longitudinal direction and a mating tongue extending forwardly from the base in a front-to-back direction perpendicular to the longitudinal direction. Each contact includes a contacting/mating section exposed upon the mating tongue. The contacts include a plurality of differential-pair signal contacts and a plurality of grounding contacts alternately arranged with each other along the longitudinal direction. Each differential-pair signal contact is associated with a metallic wiping piece in front with a tiny gap so as to have the distance between the rear end of the contacting section and the front edge of the wiping piece is still equal to 3.9 mm which is regulated by the industry standard specification as a full length of the contacting section of the traditional contact.

First claim

What is claimed is:

1. An electrical connector comprising:
an insulative housing including a base extending in a longitudinal direction, and a mating tongue extending from the base in a front-to-back direction perpendicular to the longitudinal direction, the mating tongue defines two mating surfaces opposite to each other in a vertical direction perpendicular to both the longitudinal direction and the front-to-back direction;
a plurality of passageways formed in the housing and exposed in the mating surfaces in the vertical direction; and
a plurality of contacts retained in the housing with corresponding front contacting sections exposed upon the mating surfaces, respectively, said contacts including a plurality of differential-pair signal contacts and a plurality of grounding contacts alternately arranged with each other along the longitudinal direction; wherein
a plurality of metallic wiping pieces is integrally formed within the corresponding passageways of the housing, respectively, via an insert-molding process at a front edge region of the mating tongue, and each metallic wiping piece is exposed to an exterior in the vertical direction, and located in front of and spaced, with a tiny gap along the front-to-back direction, from the contacting section of the corresponding differential-pair signal contact which shares the same passageway with the metallic wiping piece.

2. The electrical connector as claimed in claim 1 , wherein each contact further includes a rear soldering section and a middle retaining section between the front contacting section and the rear soldering section, and the retaining section includes barbs so as to have the contact forwardly assembled into the housing from a rear side of the housing after the housing is formed with the corresponding metallic wiping piece via the insert-molding process.

3. The electrical connector as claimed in claim 1 , wherein the metallic wiping piece is made of material different from that of the contact.

4. The electrical connector as claimed in claim 1 , wherein a distance from a front end of the metallic wiping piece to a rear end of the exposed contacting section of the corresponding contact sharing the same passageway, is 3.9 mm.

5. The electrical connector as claimed in claim 4 , wherein the tiny gap between the metallic wiping piece and the contacting section of the corresponding contact sharing the same passageway is at least 0.05 mm.

6. The electrical connector as claimed in claim 1 , wherein the passageway is empty behind the contacting section in the vertical direction except two lateral sides of the contacting section.

7. A method of making an electrical connector comprising steps of:
insert-molding a plurality of metallic wiping pieces within an insulative housing having a base extending along a longitudinal direction and a mating tongue extending forwardly from the base in a front-to-back direction perpendicular to the longitudinal direction, wherein a plurality of passageways are formed in the housing and extend in the front-to-back direction with the corresponding metallic wiping pieces laterally embedded therein at a front edge region of the mating tongue and exposed to an exterior in a vertical direction perpendicular to both the longitudinal direction and the front-to-back direction; and
forwardly assembling a plurality of contacts into the corresponding passageways from a rear side of the housing, wherein
each contact includes a front contacting section exposed upon the mating tongue and spaced from the corresponding metallic wiping piece with a tiny gap in said front-to-back direction.

8. The method as claimed in claim 7 , wherein the gap is at least 0.05 mm.

9. The method as claimed in claim 7 , wherein a distance from a front end of the metallic wiping pieces to a rear end of the exposed contacting section is 3.9 mm.

10. The method as claimed in claim 7 , wherein each passageway is empty behind the contacting section of the corresponding contact in the vertical direction for impedance match consideration except two opposite lateral sides of the contacting section for retention consideration.

11. The method as claimed in claim 7 , wherein each passageway is empty behind the corresponding metallic wiping piece in the vertical direction except two opposite lateral sides of the metallic wiping piece for retention consideration.

12. An electrical connector comprising:
an insulative housing including a base extending in a longitudinal direction, and a mating tongue extending from the base in a front-to-back direction perpendicular to the longitudinal direction, the mating tongue defines two mating surfaces opposite to each other in a vertical direction perpendicular to both the longitudinal direction and the front-to-back direction;
a plurality of passageways formed in the housing and exposed in the mating surfaces in the vertical direction; and
a plurality of contacts retained in the housing with corresponding front contacting sections exposed upon the mating surfaces, respectively, said contacts including a plurality of differential-pair signal contacts and a plurality of grounding contacts alternately arranged with each other along the longitudinal direction; wherein
a plurality of metallic wiping pieces is located within the corresponding passageways of the housing at a front edge region of the mating tongue, and each metallic wiping piece is exposed to an exterior in the vertical direction, and located in front of and spaced, with a tiny gap along the front-to-back direction, from the contacting section of the corresponding differential-pair signal contact which shares the same passageway with the metallic wiping piece.

13. The electrical connector as claimed in claim 12 , wherein each contact further includes a rear soldering section and a middle retaining section between the front contacting section and the rear soldering section, and the retaining section includes barbs so as to have the contact forwardly assembled into the housing from a rear side of the housing after the housing is formed with the corresponding metallic wiping piece via the insert-molding process.

14. The electrical connector as claimed in claim 12 , wherein the metallic wiping piece is made of material different from that of the contact.

15. The electrical connector as claimed in claim 12 , wherein a distance from a front end of the metallic wiping piece to a rear end of the exposed contacting section of the corresponding contact sharing the same passageway, is 3.9 mm.

16. The electrical connector as claimed in claim 15 , wherein the tiny gap between the metallic wiping piece and the contacting section of the corresponding contact sharing the same passageway is at least 0.05 mm.

17. The electrical connector as claimed in claim 12 , wherein the passageway is empty behind the contacting section in the vertical direction except two lateral sides of the contacting section.

Assignees

• Fu Ding Prec Industrial Zhengzhou Co Ltd
• Foxconn Interconnect Technology Ltd

Inventors

• Liu Meng
• Yang Na
• Chang Yen-Chih
• Hsiao Yu-San
• Hsiao Shih-Wei

Classifications

• H01R2107/00

  Four or more poles · CPC title

• H01R13/6474 Primary

  by variation of conductive properties, e.g. by dimension variations · CPC title

• H01R13/26 Primary

  Pin or blade contacts for sliding co-operation on one side only {(for modular jack type connectors H01R24/62)} · CPC title

• H01R13/405

  Securing in non-demountable manner, e.g. moulding, riveting · CPC title

• H01R13/6477

  by variation of dielectric properties · CPC title