Card edge connector with improvwed grounding bars

Patent metadata

Field	Value
Publication number	US-10581206-B2
Application number	US-201816222507-A
Country	US
Kind code	B2
Filing date	Dec 17, 2018
Priority date	Dec 15, 2017
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A card edge connector includes an insulating housing defining a mating slot, two rows of terminals and a grounding member. Each row of terminals includes grounding terminals and signal terminals. The grounding member includes a first grounding bar and a second grounding bar each defining an upper edge and a lower edge. A plurality of elastic tabs extends from the upper edge and contacting with corresponding grounding terminals. The first and second grounding sides are disposed vertically in a bottom and at an outer side of corresponding row of terminals, and extends along the longitudinal direction of the housing under a condition that the upper edges of the grounding sides are disposed below the inner bottom face of the mating slot. The upper edges are located below the inner bottom face of the mating slot.

First claim

What is claimed is:

1. A card edge connector comprising:
a longitudinal insulating housing comprising a first wall and an opposite second wall, and a bottom connecting with the first and the second walls, thereby commonly defining a mating slot for receiving an electric card;
a plurality of terminals arranged in two rows, and retained in the first wall and the second wall respectively, the terminals comprising retaining portions retained in the first and second walls, elastic mating portions extending in the mating slot and leg portions through a bottom face of the insulating housing;
each row of said terminals comprising grounding terminals and signal terminals;
a grounding member retained in the insulating housing and comprising a first grounding side and a second grounding side respectively associated with the corresponding first and second walls, each of the first and second grounding sides defining an upper edge and a lower edge thereof, a plurality of elastic tabs extending from said upper edge and contacting with the corresponding grounding terminals;
wherein the first and second grounding sides are disposed vertically in the bottom of the housing and at an outer side of the corresponding row of terminals, and extends along a longitudinal direction of the insulating housing under a situation that the upper edges of the first and second grounding sides are disposed below an inner bottom face of the mating slot;
wherein the insulating housing defines two retaining slits running through the bottom face thereof, and the first and second grounding sides are inserted in the corresponding retaining slits from the bottom face, respectively.

2. The card edge connector as claimed in claim 1 , wherein the elastic tabs elastically press against the retaining portions of corresponding grounding terminals.

3. The card edge connector as claimed in claim 1 , wherein each of the first wall and the second wall forms a plurality of receiving slits in which said elastic tabs extend to contact the corresponding grounding terminals, and in a cross-section taken along in a transverse direction, only one of first wall and the second wall forms the receiving slit to receive the corresponding elastic tab therein.

4. The card edge connector as claimed in claim 1 , wherein the first and second grounding sides are unitarily connected with two short sides at opposite longitudinal ends thereof.

5. The card edge connector as claimed in claim 4 , wherein the two short sides cover the bottom face of the insulating housing.

6. The card edge connector as claimed in claim 1 , wherein each of the first and second long sides defines retaining tabs extending upright and interfering in the insulating housing.

7. The card edge connector as claimed in claim 1 , wherein the card edge connector transmits speed up to 16 Gbps.

8. The card edge connector as claimed in claim 1 , wherein the elastic tabs press against the retaining portions of corresponding grounding terminals.

9. A card edge connector comprising:
a longitudinal insulating housing defining a mating slot opening upward and comprising two opposite long walls and a bottom commonly defining the mating slot, the mating slot defining an inner bottom face, each long wall defining a plurality of grooves through a bottom face of the insulating housing;
two rows of terminals received and retained in the grooves in the long walls, respectively, each terminal comprising a retaining portion retained in the long wall, an elastic mating portion extending in the mating slot and a leg portion through the bottom face, each row of terminals comprising grounding terminals;
a pair of long grounding bars, each defining an upper edge and a lower edge thereof and forming a plurality of elastic tabs, the elastic tabs extending from the upper edge and slanting inward thus contacting with corresponding grounding terminals;
wherein each of the long walls of the insulating housing defines a retaining slit at an outer side of the corresponding grooves, the retaining slits extend in a longitudinal direction of the insulating housing and through the bottom face of the insulating housing, the long grounding bars and the terminals are configured so that the grounding bars are inserted in the retaining slits from the bottom face before the terminals are inserted in the grooves.

10. The card edge connector as claimed in claim 9 , wherein the upper edge of each long grounding bar is disposed below the inner bottom face of the mating slot.

11. The card edge connector as claimed in claim 9 , wherein each of the elastic tabs includes an inward slanting portion and an arc contacting portion at a distal end of the slanting portion, and the contacting portions press against the retaining portions of corresponding grounding terminals.

12. The card edge connector as claimed in claim 11 , wherein the retaining portions of the grounding terminals are disposed vertically and upper edges of the retaining portions are located above the inner bottom face.

13. The card edge connector as claimed in claim 11 , wherein the contacting portions of the elastic tabs are located at a substantially same level with the inner bottom face of the mating slot.

14. The card edge connector as claimed in claim 9 , wherein the long walls define receiving slits each communicating with the retaining slot and the grooves so that the elastic tabs cross the receiving slits and then contact the retaining portions of the grounding terminals.

15. A card edge connector comprising:
an elongated insulative housing defining a central mating slot extending downwardly from an upper face of the housing in a vertical direction, and further along a longitudinal direction perpendicular to the vertical direction with a pair of side walls by two sides of the mating slot in a transverse direction perpendicular to both the vertical direction and the longitudinal direction, each of said side walls forming a plurality of grooves therein along the longitudinal direction, and receiving slots outside of the corresponding grooves in the transverse direction;
two rows of terminals respectively disposed in the corresponding grooves of the pair of side walls and including grounding terminals and signal terminals, each of said terminals including a mating portion extending into the mating slot, a retaining portion located below the mating portion and securely retained in the corresponding side wall; and
a unitary metallic grounding member having a U-shaped cross-section and downwardly in the vertical direction attached upon the housing to cover both the upper face and said side walls while upwardly exposing the central mating slot, and including a plurality of elastic tabs extending into the corresponding receiving slots to contact the corresponding grounding terminals, respectively.

16. The card edge connector as claimed in claim 15 , wherein in a cross-section of the housing taken along the transverse direction, only one elastic tab is disposed in one of said pair of side walls.

17. The card edge connector as claimed in claim 15 , wherein not all the grooves are equipped with the corresponding receiving slots aside to receive the corresponding elastic tabs.

18. The card edge connector as claimed in claim 15 , wherein each of said receiving slots is open outwardly in the transverse direction to receive the corresponding elastic tab therein.

19. The card edge connector as claimed in claim 15 , wherein each of said elastic tabs extends in a cantilevered manner with a downwardly extending free end.

Assignees

• Foxconn Kunshan Computer Connector Co Ltd
• Foxconn Interconnect Technology Ltd

Inventors

• Fang Jun
• Tang Wen-Jun
• Yin Xiao-Hu

Classifications

• H01R13/6594

  the shield being mounted on a PCB and connected to conductive members · CPC title

• H01R13/50

  formed as an integral body (H01R13/514 takes precedence) · CPC title

• H01R13/6597 Primary

  the conductive member being a contact of the connector · CPC title

• H01R12/737 Primary

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

• H01R13/646

  specially adapted for high-frequency, e.g. structures providing an impedance match or phase match (non-coaxed protective earth or shield arrangements H01R13/648; coaxed connectors specially adapted for high frequency H01R24/40) · CPC title