TWM631384U - card edge connector - Google Patents

Abstract

A card edge connector includes an insulating shell and two terminal modules. The insulating housing extends along a length direction and includes a card edge slot and a terminal holding seat mounting slot. Each terminal module includes a terminal holder extending along the length direction and installed in the terminal holder mounting groove, a plurality of conductive terminals spaced and arranged in at least one row along the length direction and fixed to the terminal holder, and a set of A common ground shield in the terminal holder, the conductive terminal includes a plurality of signal terminals and a plurality of ground terminals, the terminal holder has a positioning groove extending along the length direction, and a plurality of connecting grooves and corresponding to the ground terminals respectively Slotted. The common ground shield includes a piece extending along the length direction and inserted into the positioning slot, a plurality of grounding elastic arms extending from the piece toward the corresponding slot and correspondingly abutting the grounding terminal, and a plurality of ground spring arms extending from the piece toward the insertion surface or The mounting surface extends and abuts against at least one shielding piece of the terminal holder.

Description

card edge connector

The new model relates to a connector, in particular to a card edge connector.

US Invention Patent No. US 8,764,464 discloses an electrical connector including a ground coupling element in the form of a second exemplary ground shorting bar constructed in accordance with an alternate embodiment. Ground shorting bars are connected at various locations along the ground contacts. It should be understood that although the second exemplary ground shorting bar is connected to one location on the ground contact, the shorting bar may alternatively be connected to more than one location on the ground contact.

In addition, U.S. Patent No. US9,640,915, Chinese Invention Patent Publication No. CN109962353B and Chinese Utility Model Publication No. CN211957998U also disclose shielding elements similar to the above ground coupling elements. However, in order to further shield electromagnetic interference and reduce signal terminals There is still room for optimization of the shielding element.

Therefore, one object of the present invention is to provide a card edge connector that can improve the problems raised in the prior art.

Therefore, in some embodiments, the novel card edge connector includes an insulating housing and two terminal modules. The insulating housing extends along a length direction and includes a plug surface and a mounting surface on opposite sides, a card edge slot with an opening facing the plug surface, and an opening facing the mounting surface and inserting with the card edge A terminal holding seat mounting groove communicated with the groove. Each of the terminal modules includes a terminal holder extending along the length direction and installed in the terminal holder mounting groove, a plurality of conductive bases spaced and arranged in a row along the length direction and fixed to the terminal holder a terminal, and a common ground shielding member provided in the terminal holder, the conductive terminals include a plurality of signal terminals and a plurality of ground terminals, the terminal holder has a positioning groove extending along the length direction, and is connected to the The positioning grooves are respectively corresponding to the plurality of slots of the ground terminal. Wherein, the common ground shield includes a piece extending along the length direction and inserted into the positioning slot, a plurality of pieces extending from one side of the piece toward the corresponding slots and respectively abutting against the ground terminals A ground spring arm, and at least one shielding sheet extending from the other side of the sheet body toward one of the insertion surface and the mounting surface and abutting against the terminal holder.

In some embodiments, each of the conductive terminals has a fixing portion fixed to the terminal holder, a spring arm portion extending from the fixing portion to the card edge slot, and a contact at the end of the spring arm portion part, and a tail part extending out of the mounting surface of the insulating shell from the fixing part.

In some embodiments, the terminal holder has at least one concave portion corresponding to receiving the at least one shielding sheet, respectively.

In some embodiments, the common ground shield includes one of the shielding pieces, and the terminal holder has one of the concave portions corresponding to receiving the shielding piece.

In some embodiments, the common ground shielding element includes a plurality of the shielding sheets, and the terminal holder has one of the concave portions correspondingly accommodating the shielding sheets.

In some implementations, the common ground shield includes a plurality of the shielding sheets spaced and juxtaposed along the length direction.

In some embodiments, the terminal holder has a plurality of concave portions corresponding to receiving the shielding sheets, respectively.

In some embodiments, a metal shell disposed on the outer side of the insulating casing is also included.

The present invention can further shield electromagnetic interference and reduce signal terminal pairings by at least one shielding piece of the common ground shielding element extending toward one of the insertion surface and the mounting surface and abutting against the terminal holder. crosstalk between.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

Referring to FIGS. 1 to 5 , a first embodiment of the novel card edge connector 100 includes an insulating housing 1 , two terminal modules 2 , and a metal shell 3 .

The insulating casing 1 is, for example, made of insulating materials such as plastic. The insulating casing 1 extends along a front-rear direction D1 (the direction indicated by the arrow is front, and the reverse direction is rear). The front-rear direction D1 is equal to the The longitudinal direction of the insulating case 1 . The insulating housing 1 includes a plug-in surface 11 and an installation surface 12 on opposite sides, a card edge slot 13 with an opening facing the plug-in surface 11 , and an opening facing the installation surface 12 and inserted into the card edge A terminal holder mounting slot 14 communicated with the slot 13 . In the first embodiment, the insertion surface 11 and the installation surface 12 are located at the top and bottom respectively in an up-down direction D2 (the direction indicated by the arrow is up, and the reverse direction is down), and the card edge slot 13 faces Above, the terminal holder mounting groove 14 faces downward.

Referring to FIG. 4 to FIG. 7 , the two terminal modules 2 are arranged side by side on the insulating housing 1 along a left-right direction D3 (the direction indicated by the arrow is right, and the reverse direction is left). Each of the terminal modules 2 includes a terminal holder 21 extending along the front-rear direction D1 (length direction) and installed in the terminal holder mounting slot 14. The terminal holder 21 is spaced and lined up along the front-rear direction D1 (length direction). A plurality of conductive terminals 22 fixed to the terminal holder 21 in a row, and a common ground shield 23 provided on the terminal holder 21 .

Referring to FIG. 8 , each of the conductive terminals 22 has a fixing portion 221 fixedly embedded in the terminal holder 21 by, for example, insert molding, extending upward from the fixing portion 221 to the card edge A spring arm portion 222 of the slot 13, a contact portion 223 located at the end of the spring arm portion 222, and a tail portion 224 extending downward from the fixing portion 221 from the mounting surface 12 of the insulating housing 1, the conductive terminals The tail portion 224 of 22 is used for example to be soldered to a circuit board (not shown) by surface mount technology (SMT). 9 and 10, the conductive terminals 22 include a plurality of signal terminals 22a and a plurality of ground terminals 22b, and the signal terminals 22a form a plurality of signal terminal pairs separated by the ground terminals 22b.

Referring to FIGS. 4 to 7 , the terminal holder 21 has a plurality of fastening blocks 211 fastened to the plurality of fastening holes 15 of the insulating housing 1 , and a positioning groove extending along the front-rear direction D1 (length direction) 212, and a plurality of slots 213 connected to the positioning groove 212 and corresponding to the ground terminals 22b respectively. In the first embodiment, the terminal holder 21 also has a joint structure 214 arranged along the front-rear direction D1, and the joint structures 214 of the terminal holders 21 of the two terminal modules 2 face each other and are in a concave-convex fit. In combination, the positioning grooves 212 and the opening grooves 213 of the terminal holding bases 21 of the two terminal modules 2 face away from each other and face the outside in the left-right direction D3.

Referring to FIGS. 4 , 6 and 8 to 10 , the common ground shield 23 includes a piece 231 extending along the front-rear direction D1 (length direction) and inserted into the positioning groove 212 along the left-right direction D3 . The inner edges of the 231 in the left-right direction D3 respectively extend upward and inwardly toward the corresponding slots 213 slantingly, and respectively correspond to the plurality of grounding elastic arms 232 abutting the grounding terminals 22b, and from the sheet body 231 The outer edge in the left-right direction D3 extends downward toward the mounting surface 12 of the insulating housing 1 and abuts against the shielding sheets 233 of the terminal holder 21 . The shielding sheets 233 are arranged side by side at intervals along the front-rear direction D1 (the longitudinal direction). The terminal holder 21 also has a plurality of recesses 215 corresponding to receiving the shielding sheets 233 . For example, in the first embodiment, the positions of the shielding sheets 233 correspond to the ground terminals 22b respectively, but it is not limited thereto. In addition, it should be noted that in other embodiments, the shielding sheet 233 may also extend toward the insertion surface 11 of the insulating housing 1 , that is, the shielding sheet 233 of the common ground shielding member 23 faces the One of the insertion surface 11 and the mounting surface 12 extends and abuts against the terminal holder 21 .

The ground terminals 22b can be electrically connected to each other by the common ground shield 23 , shield electromagnetic interference and reduce the crosstalk between the signal terminal pairs, and the common ground shield 23 faces the insertion surface 11 . One of the mounting surfaces 12 extends and is adjacent to the shielding sheet 233 of the terminal holder 21 , which can further shield electromagnetic interference and reduce crosstalk between signal terminal pairs.

Referring to FIGS. 1 to 3 , the metal shell 3 is disposed on the outer side of the insulating shell 1 and can shield electromagnetic interference. However, the metal shell 3 can also be omitted in other embodiments, instead of This first embodiment is limited. In the first embodiment, the insulating housing 1 further includes a snap-fit block 16 , the metal shell 3 includes snap-fit holes 31 , and the snap-fit block 16 is snapped into the snap-fit holes 31 so that the metal The casing 3 is assembled to the insulating case 1 .

Referring to FIGS. 11 to 13 , the difference between the second embodiment of the card edge connector 100 of the present invention and the first embodiment is that the number of the shielding pieces 233 of the common ground shielding member 23 is only one, and the shielding piece 233 extends in the front-rear direction D1 (longitudinal direction), and the number of the concave portion 215 of the terminal holder 21 for accommodating the shielding sheet 233 is only one.

Referring to FIGS. 14 to 17 , the difference between the third embodiment of the card edge connector 100 of the present invention and the first embodiment is that the shielding sheet 233 of the common ground shielding member 23 is directed from the sheet body 231 toward the insulating shell The insertion surface 11 of the body 1 extends upward and abuts against the terminal holder 21 . In addition, the positions of the shielding sheets 233 roughly correspond to the signal terminal pairs, but not limited thereto. In addition, in the third embodiment, the number of the concave portion 215 of the terminal holder 21 for accommodating the shielding sheets 233 is only one.

Referring to FIGS. 18 to 20 , the difference between the fourth embodiment of the card edge connector 100 of the present invention and the second embodiment is that the number of the shielding pieces 233 of the common ground shielding member 23 is only one, and the shielding piece 233 extends in the front-rear direction D1 (longitudinal direction), and the number of the concave portion 215 of the terminal holder 21 for accommodating the shielding sheet 233 is only one.

To sum up, the present invention can go further by at least one shielding piece 233 of the common ground shielding element 23 extending toward one of the insertion surface 11 and the mounting surface 12 and abutting against the terminal holder 21 . Ground shields electromagnetic interference and reduces crosstalk between signal terminal pairs.

However, the above are only examples of the present invention, which should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application for this new model and the contents of the patent specification are still within the scope of the present invention. within the scope of this new patent.

100: Card edge connector

1: Insulating shell

11: Plug surface

12: Mounting surface

13: Card edge slot

14: Terminal holder mounting slot

15: Snap holes

16: Buckle block

2: Terminal module

21: Terminal holder

211: Buckle block

212: Positioning slot

213: Slotted

214: Combined Construction

215: Recess

22: Conductive terminal

221: Fixed part

222: Elastic arm

223: Contact Department

224: tail

23: Common ground shield

231: sheet body

232: Ground Spring Arm

233: Shield sheet

3: Metal shell

31: Snap holes

D1: Front and rear direction

D2: up and down direction

D3: left and right direction

22a: Signal terminal

22b: Ground terminal

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a perspective view of a first embodiment of the novel card edge connector; 2 is an exploded perspective view of the first embodiment; Fig. 3 is another perspective exploded view of the first embodiment viewed from another perspective; 4 is a perspective exploded view of the insulating housing and the terminal module of the first embodiment; 5 is another perspective exploded view of the insulating housing and the terminal module of the first embodiment viewed from another perspective; 6 is an exploded perspective view of the terminal module of the first embodiment; 7 is another perspective exploded view of the terminal module of the first embodiment viewed from another perspective; 8 is a cross-sectional view of the first embodiment; 9 is a side view of the terminal module of the first embodiment; 10 is a side view of the terminal module of the first embodiment, and the common ground shield of the terminal module of the first embodiment is omitted in the figure; 11 is a perspective view of a terminal module of a second embodiment of the new card edge connector; 12 is an exploded perspective view of the terminal module of the second embodiment; Figure 13 is a side view of the terminal module of the second embodiment; 14 is a perspective view of a terminal module of a third embodiment of the new card edge connector; 15 is an exploded perspective view of the terminal module of the third embodiment; Figure 16 is a side view of the terminal module of the third embodiment; Figure 17 is a cross-sectional view of the third embodiment; 18 is a perspective view of a terminal module of a fourth embodiment of the new card edge connector; 19 is an exploded perspective view of the terminal module of the fourth embodiment; and FIG. 20 is a side view of the terminal module of the fourth embodiment.

2: Terminal module

21: Terminal holder

211: Buckle block

212: Positioning slot

213: Slotted

214: Combined Construction

215: Recess

22: Conductive terminal

222: Elastic arm

223: Contact Department

224: tail

23: Common ground shield

231: sheet body

232: Ground Spring Arm

233: Shield sheet

D1: Front and rear direction

D2: up and down direction

D3: left and right direction

Claims (8)

A card edge connector, comprising: an insulating shell extending along a length direction and including a plug surface and a mounting surface on opposite sides, a card edge slot with an opening facing the plug surface, and an opening facing the a terminal holder mounting slot communicated with the mounting surface and the card edge slot; and two terminal modules, each of the terminal modules includes a terminal holder extending along the length direction and installed in the terminal holder mounting slot a terminal holder, a plurality of conductive terminals spaced and arranged in a row along the length direction and fixed to the terminal holder, and a common ground shield provided on the terminal holder, the conductive terminals include a plurality of signal The terminal and a plurality of ground terminals, the terminal holder has a positioning groove extending along the length direction, and a plurality of slots communicated with the positioning groove and corresponding to the ground terminals respectively; wherein, the common ground shield includes a The piece extending in the length direction and inserted into the positioning slot, a plurality of ground spring arms extending from one side of the piece toward the corresponding slots and respectively corresponding to abutting the ground terminals, and a plurality of ground spring arms extending from the piece The other side of the terminal extends toward one of the insertion surface and the mounting surface and abuts against at least one shielding sheet of the terminal holder. The card edge connector of claim 1, wherein each of the conductive terminals has a fixing portion fixed to the terminal holder, a spring arm portion extending from the fixing portion to the card edge slot, and a spring portion located on the A contact portion at the end of the elastic arm portion, and a tail portion extending from the fixing portion out of the mounting surface of the insulating shell. The card edge connector of claim 1, wherein the terminal holder has at least one concave portion corresponding to receiving the at least one shielding sheet, respectively. The card edge connector of claim 3, wherein the common ground shielding member includes one of the shielding pieces, and the terminal holder has one of the concave portions correspondingly accommodating the shielding piece. The card edge connector of claim 3, wherein the common ground shielding member includes a plurality of the shielding pieces, and the terminal holder has one of the concave portions correspondingly accommodating the shielding pieces. The card edge connector of claim 1, wherein the common ground shielding member includes a plurality of the shielding sheets spaced and juxtaposed along the length direction. The card edge connector of claim 6, wherein the terminal holder has a plurality of concave portions respectively corresponding to receiving the shielding sheets. The card edge connector of claim 1, further comprising a metal shell disposed outside the insulating housing.

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