CN111883958A

CN111883958A - Card edge connector

Info

Publication number: CN111883958A
Application number: CN201910426725.XA
Authority: CN
Inventors: 董媛媛; 牛国祥; 印小虎; 唐文军; 吴勋
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2019-05-03
Filing date: 2019-05-22
Publication date: 2020-11-03
Also published as: TWM603209U

Abstract

The card edge connector comprises a lengthwise insulating body, terminals fixed on the insulating body and a grounding plate, wherein the insulating body comprises two lengthwise side walls, a bottom wall connecting the two side walls, and a card slot extending along the lengthwise direction and located between the two side walls and the bottom wall. The terminal is arranged on the side wall and comprises a plurality of signal terminals and a plurality of grounding terminals, each grounding terminal comprises a fixing part fixed on the insulating body, an elastic arm extending from the fixing part and a pin extending from the fixing part to the insulating body, and the elastic arm is provided with a contact part protruding into the clamping groove. The grounding terminal comprises a lapping part, and the lapping part extends from the holding part and abuts against the grounding plate. The lapping part extends from the fixing part, and the influence of the lapping part on the elastic arm or the pin is avoided.

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 ground plate.

[ background of the invention ]

Chinese utility model No. CN207572652U discloses an electric connector, which comprises an insulating body, first and second rows of terminals and a grounding member installed in the insulating body, the first and second rows of terminals all include signal terminals and grounding terminals, the grounding member includes main part with two relative edges and first group of elastic arms and second group of elastic arms extending from the two edges of main part slope respectively, grounding terminal elastic butt in first group of elastic arms and the first row of terminals, grounding terminal elastic butt in second group of elastic arms and the second row of terminals, the insulating body includes two lateral walls, diapire and butt joint chamber enclosed by both sides walls and diapire, and the diapire has the installation face that deviates from butt joint chamber, and the main part butt of grounding member is at the installation face of diapire, first and second group of elastic arms pass the diapire and contact grounding terminal. The grounding piece is arranged at the bottom of the insulating body from bottom to top and connects the grounding terminals in the first row of terminals and the second row of terminals, so that the assembly is convenient, and a better shielding effect is realized. The main body of the terminal has a poor holding effect.

It is therefore desirable to design an improved electrical connector that overcomes the above-mentioned deficiencies.

[ summary of the invention ]

The technical problem to be solved by the invention is as follows: provides a card edge connector with better holding effect.

In order to solve the above problems, the present invention can adopt the following technical scheme:

the utility model provides a card edge connector, its includes the insulator of lengthwise, is fixed in insulator's terminal and ground plate, insulator includes two lateral walls of lengthwise, connects two the diapire of lateral wall, and be located two draw-in groove that extends along the lengthwise direction between lateral wall and the diapire, the terminal is arranged the lateral wall just includes a plurality of signal terminals and a plurality of ground terminal, ground terminal is including fixing insulator's fixing portion, the elastic arm that extends from fixing portion and extend insulator's pin from fixing portion, the elastic arm has the protruding contact site of stretching into the draw-in groove, ground terminal includes the overlap joint portion, the overlap joint portion extends and the butt is in from fixing portion the ground plate.

Compared with the prior art, the overlapping part of the terminal extends from the fixing part, so that the influence of the overlapping part on the elastic arm or the pin is avoided.

[ 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 and an enlarged view of a part of the structure.

Fig. 3 is a perspective view of the card edge connector shown in fig. 1 with a left half cut away.

Fig. 4 is an exploded view of the card edge connector shown in fig. 1.

Fig. 5 is a combination schematic view of a portion of a terminal and a ground plate of the card edge connector shown in fig. 2.

Fig. 6 is a terminal perspective view of the card edge connector shown in fig. 1.

3 fig. 3 7 3 is 3 a 3 sectional 3 view 3 of 3 the 3 card 3 edge 3 connector 3 shown 3 in 3 fig. 3 1 3 in 3 a 3 direction 3 of 3 a 3 dotted 3 line 3 a 3- 3 a 3. 3

Fig. 8 is an exploded view of another card edge connector of the present invention.

Fig. 9 is an exploded view of the card edge connector shown in fig. 8 at another angle.

Fig. 10 is a perspective view of the card edge connector shown in fig. 8 with a right half cut away.

Fig. 11 is a vertical sectional view of the card edge connector shown in fig. 10.

[ description of element symbols ]

Card edge connector 100 insulation body 1

Plugging surface 101 card slot 102

Side walls

11, 12 and bottom wall 13

Inner wall surface 111 of the bump 110

Extending portion 15 of fool-proof portion 14

Terminal groove 16 receiving groove 17

End wall 18 terminal 2

Contact part 210 of elastic arm 21

Inner edge 220 of the fixing portion 22

Outer edge 221 barb 222

Bridging portion 223 through hole 224

Pin 23

A first terminal 2a and a second terminal 2b

Grounding terminal

2G signal terminal 2S

Ear clip 3 grounding piece 4

Ground plate

41, 42 fixing ribs 410

Short side 43 of the escape opening 411

Reinforcing sheet 5

Insulating body 6 of electric connector 200

Sidewall 61 ribs 62

Ribbed floor 620 first terminal module 71

Second terminal module 72 insulator 73

Terminal 74 ground terminal 74G

Inner leg 741 and outer leg 742

Fixing column 710 second fixing portion 720

Fixed hole 721 positioning column 722

Body 81 of grounding member 8

Vertical wall 82 resilient arm 83

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

[ detailed description ] embodiments

Referring to fig. 1 to 4, the present invention discloses a card edge connector 100, which includes an elongated insulative housing 1, a terminal 2 assembled on the insulative housing 1, an ear clip 3, a grounding piece 4 and a reinforcing piece 5.

Referring to fig. 3 to 4, the housing 1 defines a mating surface 101 for receiving an electronic card, which includes two

longitudinal side walls

11, 12, a bottom wall 13 connecting the two

side walls

11, 12, and a slot 102 extending in a longitudinal direction between the two

side walls

11, 12 and the bottom wall 13. The insulating body 1 comprises two end walls 18 located at the two ends of the slot 102 and connecting the two

side walls

11, 12, and the reinforcing sheet 5 is fixed in the end walls 18. One of the side walls 11 is provided with spaced apart projections 110 adjacent the mating surface 101, and the opposite side wall 12 is provided as a planar wall. The housing 1 extends from one of the end walls 18 to form a mounting portion 15, and the mounting portion 15 is used for fixing the ear clip 3. A plastic fool-proof portion 14 is disposed in the slot 102 and connects the two

sidewalls

11 and 12. A plurality of terminal slots 16 for receiving the terminals 2 are uniformly arranged on each of the

side walls

11, 12, and the bottom of the

side walls

11, 12 includes a receiving slot 17 penetrating the bottom surface, and the receiving slot 17 is used for receiving the ground plate 4 (see fig. 7).

Referring to fig. 4 to 6, the terminals 2 are arranged on the side wall and include a plurality of signal terminals 2S and a plurality of ground terminals 2G. The ground terminal 2G includes a holding portion 22 fixed to the insulating housing 1, an elastic arm 21 extending from the holding portion 22, and a pin 23 extending from the holding portion 22 to the insulating housing 1. The elastic arm 21 has a contact portion 210 protruding into the card slot 102, and the contact portion 210 is electrically connected to the mating electronic card. In the embodiment, the grounding terminal 2G is formed by stamping, i.e. a blanking terminal, and the plane of the holding portion 22 is perpendicular to the longitudinal direction, so that the grounding terminal 2G increases the interference area with the

side walls

11, 12, and is better held in the insulating body 1. The ground member 4 includes two

ground plates

41, 42, and a bridging portion 223 extends from the holder 22 to contact the ground plates, thereby forming a ground path and improving high frequency performance. Specifically, the holding portion 22 has an inner edge 220 and an outer edge 221, the inner edge 220 is fixed to the

side wall

11, 12 and the outer edge 221 is fixed to the insulating housing 1. The upper portion of the outer side edge 221 of the holding portion is provided with a barb 222, the outer side edge 221 is inclined and extended downwards to form the overlapping portion 223, and the overlapping portion 223 is located below the barb 222. In this embodiment, the structure of the signal terminal 2S is substantially the same as that of the ground terminal 2G, and is also a blanking terminal, and the signal terminal also has a bridging portion 223, but the bridging portion 223 does not contact the

ground plates

41 and 42, and the description thereof is omitted. The bridging part 223 of the terminal extends from the holding part 22, so as to avoid the influence on the elasticity of the elastic arm 21 or the regularity of the pin 23; meanwhile, the area of the holding portion 22 is large, increasing the interference area and thus increasing the interference force with the insulating body 1.

As shown in fig. 3. The holding portion 22 is further provided with a through hole 224, the through hole 224 penetrates through two surfaces of the holding portion 22 along the longitudinal direction, and the through hole 224 is provided so that the holding portion 22 has a possibility of slight elastic deformation. In the present embodiment, the holding portion 22 has 4 through holes 224 and is a grid-shaped structure, but in other embodiments, two through holes arranged up and down or two through holes arranged transversely may be used, so that the holding portion has a hard interference holding force passing through the inner and outer side edges and also has an elastic holding force generated by elastic deformation.

Referring to fig. 5, the terminal 2 on each sidewall includes a plurality of first terminals 2a and a plurality of second terminals 2b adjacent to each other, the pins 23 of the first terminals 2a extend vertically downward from the lower edge of the fixing portion 22, and the pins 23 of the second terminals 2b extend from the lower edge of the fixing portion 22 and are bent vertically to two sides, so that the pins of the second terminals 2b are located outside the pins of the first terminals 2 a. As can be seen from fig. 5, the terminal pins 23 in each sidewall include two rows, the pins of the first terminal 2a are arranged inside the pins of the second terminal 2b, but the elastic arms 21 and the holding portions 22 of the terminals are still arranged in one row, so that the pitch between the pins is increased, and the arrangement of the pin through holes corresponding to the PCB is facilitated.

In a particular embodiment, the ground member 4 comprises two vertically placed

ground plates

41, 42 as described above and a short side 43 connecting the two

ground plates

41, 42. The bridging portions 223 abut against the corresponding ground plates. The

ground plates

41 and 42 are mounted in the housing groove 17 from the bottom surface upward. The bridging portion 223 of the ground terminal 2G has an arc-shaped structure formed at its end, and passes through the receiving groove 17 to elastically contact the ground plate. The

ground plates

41 and 42 are formed with relief notches 411 at the bridging portions 223 corresponding to the signal terminals 2S, and the bridging portions 223 of the signal terminals 2S extend into the relief notches 411 so as not to contact the ground plates. The two

ground plates

41, 42 are vertically fixed to the

side walls

11, 12, the upper edges of the

ground plates

41, 42 protrude upward out of the fixing ribs 410, and the relief notches 411 are located at the lower edges of the ground plates; the projection of the fixing rib 410 is located within the escape notch 411 when viewed from above.

Referring to fig. 8 to 11, the present invention further discloses a card edge connector 200, which is different from the terminal structure and the ground plate structure of the card edge connector 100, but in order to achieve the same transmission effect as the card edge connector 100, the present invention discloses another structure for matching a terminal and a ground member.

Referring to fig. 8, the card edge connector 200 includes an elongated insulative housing 6, a first terminal module 71, a second terminal module 72 and a ground 8 accommodated in the insulative housing 6. The insulating body 6 includes a card receiving groove 601 penetrating upward, a mounting groove 602 penetrating downward, and two side walls 61 located at both sides of the card receiving groove 601, and the side walls 61 are provided with ribs 62 (see fig. 10) separating the terminals 74.

Referring to fig. 8 to 9, each

terminal module

71, 72 includes an insulator 73 and a terminal 74 fixed on the insulator 73, the terminal 74 includes a ground terminal 74G, and each row of terminals 74 further includes an inner leg 741 and an outer leg 742 extending in the opposite direction (see fig. 10). The first and second terminal modules are mounted in the mounting grooves 602 on the corresponding sidewalls from bottom to top. The insulator of the second terminal set 72 is provided with a second fixing portion 720 formed by extending from the inner side surface thereof, a fixing hole 722 is concavely provided at the free end of the second fixing portion 720, the fixing hole 722 having a hexagonal contour can be a hole of other shape, and a positioning post 721 extending downward is provided at the bottom surface of the second fixing portion 720. The insulator of the first terminal module 71 is provided with a fixing post 710 protruding from the inner side surface thereof at a position corresponding to the second fixing portion 720, and the fixing post 710 is inserted into the fixing hole 722, thereby realizing the opposite insertion fixing of the two terminal modules.

Referring to fig. 8 and 10, the ground member 8 includes a main body 81 and vertical walls 82 bent from both sides of the main body 81, and the inner leg 701 is located below the main body 81. The grounding member 8 further includes elastic arms 83 on both sides of the main body 81, the elastic arms 83 abut against the grounding terminal 70G, and the elastic arms 83 and the vertical walls 82 are arranged at intervals along the extending direction of the side walls 61 on the side edges of the main body 81. The terminal inner pin 701 is opposite to the lower part of the main body 81, the grounding member 8 is clamped between the first and second terminal modules, and the three are assembled and fixed to the mounting groove 602 from the bottom to the top. The vertical wall 82 abuts up against the bottom surface 620 of the rib 62, preventing over-insertion. The first and second

terminal modules

71, 72 are fixed by interference of the insulators 73 thereof with the side walls 61, while the ground member 8 is fixed by interference of the vertical walls 82 thereof with the insulators 73 of the first and second terminal modules.

The above-described embodiments are presently preferred, but not necessarily all, embodiments of the invention. Any equivalent variations of the technical solutions of the present invention that a person of ordinary skill in the art would take upon 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 the insulator of lengthwise, is fixed in insulator's terminal and ground plate, insulator includes two lateral walls of lengthwise, connects two the diapire of lateral wall, and be located two draw-in groove that extends along the lengthwise direction between lateral wall and the diapire, the terminal is arranged the lateral wall just includes a plurality of signal terminal and a plurality of ground terminal, ground terminal is including fixing insulator's fixing portion, from the elastic arm that the fixing portion extended and extend insulator's pin from the fixing portion, the elastic arm has protruding the entering the contact site of draw-in groove, its characterized in that: the grounding terminal comprises a lapping part, and the lapping part extends from the holding part and abuts against the grounding plate.

2. The card edge connector according to claim 1, wherein: the inner edge and the outer edge of the fixing part are respectively fixed on the side wall, and the lapping part extends downwards from the outer edge of the fixing part in an inclined mode and abuts against the grounding plate.

3. The card edge connector as claimed in claim 2, wherein: the inner edge of the holding part extends inwards beyond the inner surface of the side wall.

4. The card edge connector according to claim 1, wherein: the grounding terminal is a stamped terminal, and the plane of the holding part of the stamped terminal is perpendicular to the longitudinal direction.

5. The card edge connector as claimed in claim 4, wherein: the fixing part is provided with a through hole which penetrates through the fixing part along the longitudinal direction.

6. The card edge connector as claimed in claim 5, wherein: the fixing part is provided with four through holes, so that the fixing part is in a Chinese character 'tian' structure.

7. The card edge connector as claimed in claim 6, wherein: the upper portion of the outer lateral margin of fixing portion is equipped with the barb, overlap joint portion is located the below of barb, overlap joint portion its end form with ground plate lapped arc structure.

8. The card edge connector according to claim 1, wherein: the structure of the signal terminal is the same as that of the grounding terminal, and the grounding plate is provided with an avoiding notch at the lap joint part corresponding to the signal terminal.

9. The card edge connector according to claim 1, wherein: each terminal on the side wall comprises a plurality of first terminals and a plurality of second terminals which are adjacent to each other, pins of the first terminals vertically extend downwards from the lower edge of the fixing portion, pins of the second terminals extend from the lower edge of the fixing portion and are vertically bent towards two sides, and therefore the pins of the second terminals are located on the outer sides of the pins of the first terminals.

10. The card edge connector as claimed in claim 8, wherein: the grounding plate is vertically fixed on the side wall, the upper edge of the grounding plate protrudes forwards to form a fixing rib, and the avoiding notch is positioned at the lower edge of the grounding plate; from the top down, the projection of fixed rib is located dodge the within range of breach.