CN110676623B

CN110676623B - Card edge connector

Info

Publication number: CN110676623B
Application number: CN201810720336.3A
Authority: CN
Inventors: 蒋煜; 李庄星; 唐文军; 卜学武
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: 2018-07-03
Filing date: 2018-07-03
Publication date: 2022-06-24
Anticipated expiration: 2038-07-03
Also published as: CN110676623A

Abstract

The invention discloses a card edge connector, which comprises a lengthwise insulating body and two rows of conductive terminals fixed on the insulating body, wherein the insulating body comprises a first side wall and a second side wall which are oppositely arranged and a bottom wall for connecting the first side wall and the second side wall, an upward-opening clamping groove is formed between the first side wall and the second side wall, each conductive terminal comprises a base part fixed in the insulating body, an elastic contact arm extending into the clamping groove from the base part and a connecting pin extending out of the bottom wall from the base part, one row of conductive terminals positioned on the same side of the clamping groove comprises a first connecting pin bending inwards from the base part and a second connecting pin bending outwards, the first connecting pin and the second connecting pin are respectively arranged in a row, and the first connecting pin and the second connecting pin are alternately arranged two by two at intervals in the lengthwise direction. The pin arrangement is beneficial to the miniaturization trend of the 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 terminal structure of a card edge connector.

[ background of the invention ]

Prior artplease refer to chinese utility model patent No. CN201638992U, published 11/17/2010, which discloses an electrical connector comprising an insulating body and a plurality of conductive terminals housed in the insulating body. The insulating body comprises a longitudinal base part and a slot arranged along the longitudinal base part. The conductive terminals are arranged on two sides of the slot along the longitudinal direction. The conductive terminal comprises a base part fixed in the insulating body, an elastic contact arm extending into the slot from the base part and a welding part extending from the base part. The welding part comprises an extension part extending from the base part, a first bending part bent from the extension part, a connecting part, a second bending part and a pad part. The pad part is positioned in a section of the first bending part distributed in the longitudinal direction. The pad part is provided with a groove for adhering the solder ball. The adjacent pad portions easily interfere with each other at the time of welding, resulting in poor welding.

There is a need for a card edge connector that is simple in construction and low in cost.

[ summary of the invention ]

The technical problem to be solved by the invention is as follows: to provide a card edge connector having a simple structure and a low cost.

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 lengthwise insulator and is fixed in two rows of conductive terminals of insulator, insulator includes relative first lateral wall and the second lateral wall that sets up and the diapire of connecting first lateral wall and second lateral wall, form the draw-in groove of upwards opening between first lateral wall and the second lateral wall, conductive terminal includes the basal portion of fixing in the insulator, extends into the elastic contact arm in the draw-in groove from the basal portion and extends the pin of diapire from the basal portion, and the one row of conductive terminal that lies in draw-in groove same side includes the first pin of inwards buckling from the basal portion and the second pin of outwards buckling, and first, second pin are respectively arranged into one row, and first, second pin are two liang of interval alternate arrangements each other in lengthwise direction.

Compared with the prior art, the invention has the following beneficial effects: the first pins and the second pins are staggered in the longitudinal direction and are not located in the same row, so that the pins are not easy to influence each other during welding, and poor welding is avoided as much as possible.

[ description of the drawings ]

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

Fig. 2 is a partially enlarged view of the card edge connector shown in fig. 1.

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

Fig. 4 is an enlarged view of the conductive terminal shown in fig. 3.

Fig. 5 is a partial bottom view of the card edge connector shown in fig. 1.

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

[ detailed description ] embodiments

Referring to fig. 1 to 5, a card edge connector 100 of the present invention is disclosed, which includes a lengthwise insulating body 10, two rows of conductive terminals 20 fixed on the insulating body 10, and a latch 30 pivotally connected to the insulating body 10. The insulating body 10 includes a first sidewall 11 and a second sidewall 12 disposed opposite to each other, and a bottom wall 13 connecting the first sidewall 11 and the second sidewall 12. The first side wall 11 and the second side wall 12 form an upward-opening card slot 14 therebetween. The insulating body 10 further includes tower-shaped portions 15 at two ends of the slot 14, the slot 14 is used for inserting a card module, and the locking piece 30 is rotatably mounted on the tower-shaped portions 15.

The two rows of conductive terminals 20 are respectively located at two sides of the card slot 14. The conductive terminals 20 located on the same side of the card slot 14 include a first conductive terminal 21 and a second conductive terminal 22. The first conductive terminal 21 includes a first base portion 211 fixed in the insulating housing 10, a first elastic contact arm 212 extending from the first base portion 211 into the card slot 14, and a first pin 213 extending from the first base portion 211 out of the bottom wall 13 and bending inward. The second conductive terminal 22 includes a second base 221 fixed in the insulating housing 10, a second elastic contact arm 222 extending from the second base 221 into the card slot 14, and a second pin 223 extending from the second base 221 out of the bottom wall 13 and bending outward. So that the first pins 213 and the second pins 223 are arranged in a row. The first and

second pins

213 and 223 are alternately arranged in pairs in the longitudinal direction. In a transverse direction perpendicular to the longitudinal direction, the first pins 213 of one row of conductive terminals and the second pins 223 of the other row of conductive terminals are aligned with each other. The first lead 213 includes a first connecting portion 214 bent vertically from the first base 211 and a first solder pad 215 extending horizontally from the first connecting portion 214, the first solder pad 215 is widened in a longitudinal direction compared with the corresponding first connecting portion 214 to form a widened portion, the widened portions are respectively located at opposite sides of the adjacent first solder pads 215, so that a distance between the adjacent first solder pads 215 is increased, and an inner side of the adjacent first solder pads 215 is flush with a corresponding side of the first connecting portion 214. By such design, the adjacent first bonding pads 215 can be prevented from influencing each other during bonding. The second leg 223 includes a second connecting portion 224 bent vertically from the second base 221 and a second bonding pad 225 extending horizontally from the second connecting portion 224, the second bonding pad 225 is widened in a longitudinal direction compared with the corresponding second connecting portion 224 to form a widened portion, the widened portions are respectively located at opposite sides of the adjacent second bonding pads 225, so that a space between the adjacent second bonding pads 225 is enlarged, and inner sides of the adjacent second bonding pads 225 and corresponding sides of the second connecting portion 224 are flush with each other. By such a design, the adjacent second bonding pads 225 can be prevented from interfering with each other during bonding. In the longitudinal direction, the distance d1 between the adjacent second connecting portions 224 is greater than the distance d2 between the adjacent first and second connecting

portions

214, 224. The spacing d1 between adjacent second connecting portions 224 is 1.48 mm. In a row of conductive terminals located on the same side of the card slot, when viewed from a direction perpendicular to the first and second sidewalls, the adjacent first and

second pads

215 and 225 have an overlapping portion, the adjacent first and

second pads

215 and 224 also have an overlapping portion, and the adjacent second and

first pads

225 and 214 also have an overlapping portion. The bottom wall 13 has a bottom surface 131 and an outer side surface 132 corresponding to the first and

second side walls

11, 12. The first bonding pads 215 of the first leads 213 of the two rows of conductive terminals 20 are located within the range of the bottom surface 131, and the second bonding pads 225 of the second leads 223 extend outward to the outer side surface 132. With such a design, the size of the insulating body 10 in the transverse direction perpendicular to the longitudinal direction is small, which is beneficial for the miniaturization trend of the card edge connector 100. The card edge connector 100 further includes solder balls 40, and the solder balls 40 are disposed on the first and

second pads

215, 225. The first bonding pad 215 and the second bonding pad 225 are staggered in the longitudinal direction and are not located in the same row, so that the adjacent first and second bonding pads 215 and 2250 are not easily affected by each other during bonding, and poor bonding is avoided as much as possible.

In summary, the above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention, and all simple equivalent changes and modifications made according to the claims and the content of the specification should still fall within the scope of the present invention.

Claims

1. The utility model provides a card edge connector, its includes lengthwise insulator and is fixed in two rows of conductive terminals of insulator, insulator includes relative first lateral wall and the second lateral wall that sets up and the diapire of connecting first lateral wall and second lateral wall, form the draw-in groove of upwards opening between first lateral wall and the second lateral wall, conductive terminal is including the basal portion of fixing in insulator, extend into the elasticity contact arm in the draw-in groove and extend the pin of diapire from the basal portion, its characterized in that: the row of conductive terminals positioned on the same side of the clamping groove comprises a first pin bent inwards from the base part and a second pin bent outwards, the first pin and the second pin are respectively arranged in a row, and every two adjacent pins in the same row of conductive terminals are arranged in pairs to form a first pin pair and a second pin pair; the pins comprise connecting parts vertically bent from the base parts and welding pads horizontally extending from the connecting parts; in a row of conductive terminals on the same side of the card slot, when viewed from a direction perpendicular to the first and second side walls, the solder pads of the adjacent first and second pins have overlapping portions, and the first and second pin pairs are alternately arranged at intervals in the longitudinal direction.

2. The card edge connector according to claim 1, wherein: the bonding pads are widened in the longitudinal direction compared with the corresponding connecting parts to form widened parts, the widened parts are respectively positioned on the opposite sides of the adjacent bonding pads, so that the space between the adjacent bonding pads is enlarged, and the inner sides of the adjacent bonding pads are flush with the corresponding sides of the connecting parts.

3. The card edge connector as claimed in claim 2, wherein: in the lengthwise direction, the distance between the connecting parts of two adjacent second pins is greater than the distance between the connecting parts of the adjacent first and second pins.

4. The card edge connector as claimed in claim 2, wherein: the bottom wall is provided with a bottom surface and outer side surfaces corresponding to the two side walls, the welding pads of the first pins of the two rows of conductive terminals are positioned in the range of the bottom surface, and the welding pads of the second pins extend outwards to form the outer side surfaces.

5. The card edge connector according to claim 1, wherein: in the transverse direction perpendicular to the longitudinal direction, the first pins of one row of conductive terminals are aligned with the second pins of the other row of conductive terminals.

6. The card edge connector as claimed in claim 2, wherein: the card edge connector further comprises solder balls, and the solder balls are arranged on the solder pads.

7. The card edge connector according to claim 1, wherein: seen from the direction perpendicular to the first side wall and the second side wall, the welding pads and the connecting parts of the adjacent first pin and the second pin have overlapped parts.

8. The card edge connector as claimed in claim 2, wherein: the widened portion has an overlapping portion with the adjacent connecting portion when viewed in a direction perpendicular to the first and second side walls.

9. The utility model provides a card edge connector, its includes lengthwise insulator and is fixed in two rows of conductive terminal of insulator, insulator includes relative first lateral wall and the second lateral wall that sets up and the diapire of connecting first lateral wall and second lateral wall, form the draw-in groove of upwards opening between first lateral wall and the second lateral wall, conductive terminal is including the basal portion of fixing in insulator, the elastic contact arm that extends into the draw-in groove from the basal portion and extend the pin of diapire from the basal portion, its characterized in that: the row of conductive terminals positioned on the same side of the clamping groove comprises a first pin bent inwards from the base part and a second pin bent outwards, every two adjacent pins in the same row of conductive terminals are arranged in pairs to form a first pin pair and a second pin pair, the first pin pair and the second pin pair are respectively arranged in a row, and the first pin pair and the second pin pair are alternately arranged at intervals in the longitudinal direction; the pin comprises a connecting part vertically bent from the base part and a welding pad horizontally extending from the connecting part; the distance between the connecting parts of two adjacent second pins is 1.48 mm.