Contact module having double-sided arranged contacts with insulator and respective equal length differential pair thereof

Patent metadata

Field	Value
Publication number	US-10833455-B2
Application number	US-201916729463-A
Country	US
Kind code	B2
Filing date	Dec 29, 2019
Priority date	Dec 28, 2018
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

An electrical connector includes a pair of opposite contact modules commonly sandwiching a grounding module therebetween in a transverse direction wherein each contact module includes two sided contacts on two sides of an insulator while the front mating sections and/or the bottom connecting sections of all the contacts are aligned in the same line. The contacts on each side of the insulator include a plurality of differential pair contacts and a plurality of grounding contacts alternately arranged with each other along the side face wherein the lengths of the pair of contacts in each differential pair essentially have the same length for reducing skewing effect by extending the body of the lower contact curvedly while keeping that of the upper contact essentially straight in each differential pair.

First claim

What is claimed is:

1. An electrical connector comprising:
an insulative housing defining a receiving space therein and defining a front-to-back direction, a vertical direction perpendicular to the front-to-back direction, and a transverse direction perpendicular to both the front-to-back direction and the vertical direction:
a pair of contact modules commonly received within the receiving space in an opposite manner, each contact module including:
a vertical insulator:
a plurality of contacts secured to the insulator, each of said contacts including along the front-to-back direction, a front mating section, a rear soldering section and a middle retaining section therebetween wherein the connecting sections of all the contacts are located in a same vertical plane; and
the contacts including a plurality of differential pair contacts and a plurality of grounding contact alternately arranged with each other; wherein
in each differential pair of said differential pair contacts, the connecting section of a lower contact extends curvedly while that of an upper contact extends essentially straight differently so as to compensate a total transmission length difference between the upper contact and the lower contact in said differential pair; wherein the grounding contact in a neighboring differential pair, which is intimately adjacent to the lower contact of said differential pair, is enlarged/expanded in said vertical plane; wherein
an expansion configuration of the grounding contact in the neighboring differential pair is intimately comply with a curved extension of the connecting section of the lower contact of said differential pair.

2. The electrical connector as claimed in claim 1 , wherein said contacts include a plurality of outer contacts and a plurality of inner contacts respectively located at two opposite outer side and inner side of the insulator, both the outer contacts and the inner contacts have the corresponding differential pair contacts and the corresponding grounding contacts, and only the connecting sections of the outer contacts and those of the inner contacts are spaced from each other in two different vertical planes while the contacting sections of both the inner contacts and the outer contacts are located in a same vertical plane as well as the connecting sections.

3. The electrical connector as claimed in claim 2 , wherein in the connecting sections of both said outer contacts and said inner contacts are arranged in sequence as the grounding contact of the outer contacts, the differential pair of the outer contacts, the grounding contact of the inner contacts, and the differential pair of the inner contacts, etc.

4. The electrical connector as claimed in claim 2 , wherein the outer contacts are integrally formed within the insulator via an insert-molding process while the inner contacts are assembled to an inner side of the insulator.

5. The electrical connector as claimed in claim 2 , wherein the connecting sections and the soldering sections of the outer contacts are located in the same vertical plane while the connecting sections and the soldering sections of the inner contacts are located in two different vertical planes.

6. The electrical connector as claimed in claim 2 , wherein the lower contact of the differential pair of the inner contacts is essentially aligned with an expanded grounding contacts of the outer contacts in the transverse direction.

7. The electrical connector as claimed in claim 2 , wherein one of the grounding contact of the inner contacts and the grounding contact of the outer contacts includes a spring tang extends toward and mechanically and electrically connects to the other.

8. The electrical connector as claimed in claim 2 , further including a grounding module sandwiched between the pair of contact module in the transverse direction, wherein the grounding module includes a metallic grounding plate integrally formed within a middle insulator via an insert-molding process and equipped with a plurality of spring fingers respectively mechanically and electrically connecting to the corresponding grounding contacts of the inner contacts of both two contact modules.

9. The electrical connector as claimed in claim 8 , wherein the inner contacts are assembled to corresponding passages in the inner side of the insulator, and the middle insulator forms a plurality of ribs inserted into the corresponding passages to commonly sandwich the inner contacts therebetween in the transverse direction.

10. The electrical connector as claimed in claim 9 , wherein the ribs are formed on two opposite sides of the middle insulator to cooperate with the passages formed in the corresponding inner sides of said two contact modules by two sides in the transverse direction.

11. An electrical connector comprising:
an insulative housing forming a receiving space therein and defining a front-to-back direction, a vertical direction perpendicular to the front-to-back direction, and transverse direction perpendicular to both the front-to-back direction and the vertical direction;
a pair of contact modules commonly received within the receiving space, each of said contacts including:
a vertical insulator defining opposite first and second sides in the transverse direction; and
a group of first contacts and a group of second contacts secured to the insulator, each group of said first contacts and said second contacts including a plurality of grounding contacts and a plurality of differential pair contacts, each of said first contacts and said second contacts including a front mating section extending into a mating slot in the housing, a rear soldering section extending out of the hosing and a middle connecting section retained to the insulator, wherein
the connecting sections of the first contacts essentially retained to a first side while the connecting sections of the second contacts essentially retained to the second side, and the contacting sections of both said first contacts and said second contacts are arranged in one row in the vertical direction in an alternate manner;
wherein
in each group of said first contacts and said second contacts, one differential pair and one grounding contact commonly form a unit, and the units of the first contacts and those of the second contacts are alternately arranged with each other in said one row along the vertical direction; wherein
the first contacts are integrally formed within the first side of the insulator via an insert-molding process while the second contacts are assembled to the second side of the insulator.

12. The electrical connector as claimed in claim 11 , further including a grounding module sandwiched between the pair of contact modules in the transverse direction and essentially consisting of a middle insulator with a metallic grounding sheet secured thereto, wherein the grounding sheet includes a plurality of spring fingers respectively mechanically and electrically connecting to the corresponding grounding contacts of the second contacts both the contact modules.

13. The electrical connector as claimed in claim 12 , wherein the grounding contacts of one group of the first contacts and the second contacts include spring tangs to mechanically and electrically connect to the other group of said first contacts and said second contacts.

14. The electrical connector as claimed in claim 12 , wherein the second contacts are assembled into corresponding passages in the insulator, and the middle insulator forms a plurality of ribs inserted into the corresponding passages to commonly sandwich the corresponding second contacts therebetween in the transverse direction for s

Assignees

• Fu Ding Prec Industrial Zhengzhou Co Ltd
• Foxconn Interconnect Technology Ltd
• Fu Ding Prec Industrial Zhenghou Co Ltd
• Foxonn Interconnecty Tech Limited

Inventors

• Chang Yen-Chih
• Hsiao Shih-Wei
• Yang Na
• Liu xiao-li
• Liu Meng
• Chen yu-ke

Classifications

• H01R13/405

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

• H01R13/6471

  by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal] · CPC title

• H01R12/737

  Printed circuits being substantially perpendicular to each other (for printed connections H05K3/366) · CPC title

• H01R13/502

  composed of different pieces (H01R13/514 takes precedence) · CPC title

• H01R13/6587 Primary

  for mounting on PCBs · CPC title