CN110867681B

CN110867681B - Card edge connector

Info

Publication number: CN110867681B
Application number: CN201810985957.4A
Authority: CN
Inventors: 孙海国; 李庄星; 唐文军
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2022-06-21
Anticipated expiration: 2038-08-28
Also published as: CN110867681A

Abstract

A card edge connector comprises a lengthwise insulating shell, a terminal module fixed on the insulating shell and a grounding piece fixed on the terminal module, wherein the insulating shell comprises two side walls extending along the lengthwise direction and a card insertion slot formed between the two side walls, the terminal module comprises an insulating body and two rows of conductive terminals fixed on the insulating body, each row of conductive terminals comprises grounding terminals arranged on the corresponding side wall, each grounding piece comprises a first grounding piece surrounding the terminal module and a second grounding piece fixed between the two rows of conductive terminals, and the first grounding piece and the second grounding piece are respectively and electrically connected with the corresponding grounding terminals in each row of conductive terminals. So set up, can improve the holistic high frequency effect of card edge connector.

Description

Card edge connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to a card edge connector, and more particularly, to a card edge connector having a plurality of grounding members.

[ background of the invention ]

Chinese patent application publication No. CN106356676A discloses a card edge connector comprising an array of conductors at least partially held within a housing, the conductors in the array being arranged side-by-side along rows, and a ground tie bar extending across the array of conductors, the ground tie bar comprising a stem and a plurality of ground fingers joined to and extending from the stem, the array of conductors comprising signal terminals and ground terminals, the ground fingers being joined with the ground terminals. Each ground terminal of the card edge connector is in contact with two ground fingers of the ground connection strip, however, in order to meet the demand for higher and higher high frequency performance, the ground terminal of the card edge connector needs to be in contact with more ground fingers so as to improve the high frequency performance of the card edge connector.

Based on the drawbacks of the prior art, there is a need for an improved card edge connector.

[ summary of the invention ]

The technical problem to be solved by the invention is as follows: a card edge connector having a plurality of ground members is provided.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a card edge connector comprises a lengthwise insulating shell, a terminal module fixed on the insulating shell and a grounding piece fixed on the terminal module, wherein the insulating shell comprises two side walls extending along the lengthwise direction and a card inserting groove formed between the two side walls, the terminal module comprises an insulating body and two rows of conductive terminals fixed on the insulating body, each row of conductive terminals comprises grounding terminals arranged on the corresponding side wall, the grounding piece comprises a first grounding piece surrounding the terminal module and a second grounding piece fixed between the two rows of conductive terminals, and the first grounding piece and the second grounding piece are respectively and electrically connected with the corresponding grounding terminals in each row of conductive terminals.

Compared with the prior art, the card edge connector improves the overall high-frequency effect of the card edge connector through the first grounding piece surrounding the terminal module and the second grounding piece fixedly held between the two rows of conductive terminals.

[ description of the drawings ]

Fig. 1 is a perspective view of the card edge connector of the present invention.

Fig. 2 is a perspective view of the card edge connector shown in fig. 1 at another angle.

Fig. 3 is an exploded view of the card edge connector shown in fig. 1.

Fig. 4 is an exploded view of the card edge connector shown in fig. 3 at another angle.

Fig. 5 is a further exploded view of the card edge connector shown in fig. 2.

Fig. 6 is an exploded view of the card edge connector shown in fig. 5 at another angle.

Fig. 7 is a top view of the insulator body of fig. 5.

Fig. 8 is a combination view of the terminal module and the ground member shown in fig. 4.

Fig. 9 is a cross-sectional view of fig. 1 taken along the dashed line a-a.

[ description of main element symbols ]

Card edge connector 100 insulating housing 1

Side wall 10 card insertion slot 11

Recess 121 of fixing part 12

Terminal module 2 grounding piece 3

First grounding member 31 and second grounding member 32

Flat plate part 33 elastic arm 34

Bent portion 341 contact portion 342

Third ground contact 35 fourth ground contact 36

End plate 37 first end plate 371

Second end plate 372 insulating body 4

First insulation body 41 and second insulation body 42

Boss 43 conductive terminal 5

Ground terminal 51 signal terminal 52

Contact portion 53 pin 54

Vertical segment 551 of connecting part 55

Horizontal segment 552 divider 6

Separating island 61 first mounting surface 611

Second mounting surface 612 positioning block 613

Convex rib 614 convex block 62

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Referring to fig. 1 to 9, the present invention discloses a card edge connector 100, which includes an elongated insulative housing 1, a terminal module 2 held in the insulative housing 1, and a grounding piece 3 held in the terminal module 2. The insulative housing 1 includes two side walls 10 extending in a longitudinal direction and a card insertion slot 11 formed between the two side walls 10 and opened forward. The terminal module 2 includes an insulative housing 4 and two rows of conductive terminals 5 fixed to the insulative housing 4. Each row of conductive terminals 5 includes a ground terminal 51 and a signal terminal 52 disposed on the corresponding side wall 10. The grounding piece 3 includes a first grounding piece 31 surrounding the terminal module 2 and a second grounding piece 32 held between two rows of conductive terminals 5. The first and

second grounding members

31 and 32 are electrically connected to the corresponding grounding terminal 51 of each row of conductive terminals 5. With such an arrangement, the first grounding piece 31 surrounding the terminal module 2 and the second grounding piece 32 held between the two rows of conductive terminals 5 improve the overall high-frequency effect of the card edge connector 100.

Referring to fig. 5 and 6, each of the first and

second grounding members

31 and 32 includes a flat plate portion 33 extending along the longitudinal direction and an elastic arm 34 extending outward from the longitudinal edge of the flat plate portion 33. The elastic arm 34 abuts against the ground terminal 51.

Referring to fig. 8 and 9, each conductive terminal 5 includes a vertical segment 551 extending in a vertical direction perpendicular to the sidewall 10, and the elastic arm 34 of the second ground element 32 abuts against the vertical segment 551 of the ground terminal 51. Each conductive terminal 5 further includes a horizontal section 552 extending in a horizontal direction parallel to the sidewall 10, and the elastic arm 34 of the first grounding member 31 abuts against the horizontal section 552 of the grounding terminal 51.

Referring to fig. 5 and 6, the card edge connector 100 further includes a partition 6 integrally injection-molded with the second ground piece 32. The flat plate portion 33 of the second ground member 32 is embedded in the spacer 6, and the elastic arm 34 of the second ground member 32 is exposed to the spacer 6. Further, the elastic arm 34 of the second grounding member 32 includes a bent portion 341 bent upward from the longitudinal side edge of the flat plate portion 33 and a contact portion 342 extending upward from the bent portion 341. The contact portion 342 is exposed to the separator 6 by abutting against the vertical segment 551, and the bent portion 341 is embedded in the separator 6. In the present embodiment, the position of the second grounding member 32 in the partition 6 is as shown in fig. 8, but the position of the second grounding member 32 in the partition 6 can be adjusted up and down according to the height of the vertical segment 551 in the direction perpendicular to the side wall 10 to achieve the best grounding effect of the card edge connector 100 in the high frequency state.

The separator 6 includes a separation island 61 extending in the longitudinal direction. The separating island 61 has two opposite surfaces, respectively a first mounting surface 611 and a second mounting surface 612, for positioning two rows of conductive terminals 5, respectively. The separating island 61 is provided with positioning blocks 613 protruding outward from the bottoms of the first and

second mounting surfaces

611 and 612, respectively. The conductive terminal 5 is held between two adjacent positioning blocks 613. The separating island 61 is provided with ribs 614 at both sides of the ground terminal 51 positioned to the second mounting surface 612, and each rib 614 is connected to one positioning block 613 positioned at the second mounting surface 612.

Referring to fig. 4, the rear end surface of the insulating housing 1 is provided with two fixing portions 12 protruding outward. The two fixing parts 12 are suspended on the rear end face of the insulating housing 1 and the top faces of the fixing parts 12 are flush with the top face of the insulating housing 1. Two opposite side surfaces of the two fixing portions 12 are respectively provided with a concave groove 121. The partition 6 is provided at both ends with protrusions 62 protruding outward, and the protrusions 62 are interference-fixed to the grooves 121.

Referring to fig. 5 and 6, the first grounding member 31 includes a third grounding member 35 and a fourth grounding member 36 which are oppositely disposed. The third and

fourth grounding members

35 and 36 include end plate portions 37 bent and extended from both ends of the flat plate portion 33. The third and

fourth grounding pieces

35 and 36 are joined to each other by the respective end plate portions 37 to surround the terminal module 2. The end plate portions 37 formed by bending both ends of the flat plate portion 33 are defined as a first end plate portion 371 and a second end plate portion 372, respectively. The length of the first end plate portion 371 in the direction perpendicular to the side wall 10 is larger than the length of the second end plate portion 372 in the direction perpendicular to the side wall 10.

The insulating body 4 includes a first insulating body 41 and a second insulating body 42 fixed to each other. The first and second insulating

bodies

41 and 42 are formed with bosses 43 projecting in the longitudinal direction at a distance from each other in the longitudinal direction. The first end plate portion 371 of the third grounding member 35 is attached to the boss 43 and partially overlaps the second end plate portion 372 of the fourth grounding member 36. The end plate portions 37 of the third and

fourth ground members

35, 36 are fixed to each other by welding. In the present embodiment, the welding is preferably spot welding, but the two end plate portions 37 may be mechanically fixed to surround the terminal module 2.

Referring to fig. 7 to 9, each of the conductive terminals 5 includes a contact portion 53 extending into the card insertion slot 11, a pin 54 fixed to an external circuit board, and a connection portion 55 connected between the contact portion 53 and the pin 54. The connection portion 55 is composed of a vertical section 551 and a horizontal section 552. The pins 54 of each row of conductive terminals 5 are bent from the ends of the vertical sections 551, and the bending directions of the pins 51 of the two rows of conductive terminals 5 are opposite. The center lines of the contact portion 53, the connection portion 55, and the pin 54 of the ground terminal 51 are aligned on the same straight line X. The center lines of the contact portion 53, the connecting portion 55 and the pin 54 of the signal terminal 52 are not on the same straight line Y.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. The utility model provides a card edge connector, its includes lengthwise insulating casing, the terminal module of fixing in insulating casing and the ground connection piece of fixing in the terminal module, insulating casing includes the both sides wall that extends along lengthwise direction and forms the card slot of pegging graft between the both sides wall, the terminal module includes insulator and fixes in two rows of conductive terminals of insulator, and every row of conductive terminal is including setting up the ground connection terminal in corresponding lateral wall, its characterized in that: the grounding part comprises a first grounding part surrounding the terminal module and a second grounding part fixed between two rows of conductive terminals, the first grounding part and the second grounding part are respectively and electrically connected with the corresponding grounding terminals in each row of conductive terminals, the first grounding part and the second grounding part respectively comprise a flat plate part extending along the longitudinal direction and an elastic arm formed by extending outwards from the longitudinal edge of the flat plate part, the elastic arm is abutted against the grounding terminals, the first grounding part comprises a third grounding part and a fourth grounding part which are oppositely arranged, the third grounding part and the fourth grounding part comprise end plate parts bent and extending from two ends of the flat plate part, the third grounding part and the fourth grounding part are spliced together through the respective end plate parts to surround the terminal module, and the card edge connector also comprises a separator which is integrally injection-molded with the second grounding part and is positioned between the two rows of conductive terminals, the plate part of the second grounding piece is embedded in the separator, and the elastic arm of the second grounding piece is exposed to the separator and abuts against the corresponding grounding terminal.

2. The card edge connector according to claim 1, wherein: each conductive terminal comprises a vertical section extending along the vertical direction perpendicular to the side wall, and the elastic arm of the second grounding piece abuts against the vertical section of the grounding terminal.

3. The card edge connector according to claim 1, wherein: each conductive terminal also comprises a horizontal section extending along the horizontal direction parallel to the side wall, and the elastic arm of the first grounding piece is abutted against the horizontal section of the grounding terminal.

4. The card edge connector according to claim 1, wherein: the rear end face of the insulating shell is provided with two fixing parts protruding outwards, two opposite side faces of the two fixing parts are respectively provided with a groove in a concave mode, two ends of the separating piece are provided with protruding blocks protruding outwards, and the protruding blocks are fixed to the grooves in an interference mode.

5. The card edge connector according to claim 1, wherein: and defining end plate parts formed by bending two ends of the flat plate part as a first end plate part and a second end plate part respectively, wherein the width of the first end plate part in the direction vertical to the side wall is greater than that of the second end plate part in the direction vertical to the side wall.

6. The card edge connector as claimed in claim 5, wherein: the insulating body comprises a first insulating body and a second insulating body which are fixed together, the first insulating body and the second insulating body are staggered with a certain distance in the longitudinal direction to form a boss protruding in the longitudinal direction, and the first end plate part of the third grounding piece is attached to the boss and partially overlapped with the second end plate part of the fourth grounding piece.

7. The card edge connector as claimed in claim 5, wherein: the end plate parts of the third and fourth grounding pieces are fixed together by welding.