TWI788479B - Card edge connector - Google Patents

Abstract

A card edge connector includes an insulative housing and a plurality of terminals. The housing defines a mating slot, and includes a first wall and a second wall on both sides of the mating slot, and a rear wall connecting the first and second walls. The first wall defines a plurality of first grooves. The plurality of terminals include a first terminal retained in the first grooves. The first terminal includes a first retaining portion retained in the rear wall. The first holding portion defines a plane surface and a cutting face. The cutting face includes a first cutting face facing the first wall or the second wall. The first cutting face includes a shear face and a tearing face. The tearing face is lower than the shear face. The rear wall includes a retaining groove fixing the first holding portion. The groove has an inner wall corresponding to the shear face and the tearing face. The inner wall abuts against the tearing face. The terminal can be stably held in the terminal slot and prevented lateral deflection.

Description

card edge connector

The invention relates to a card edge connector.

China Mainland Utility Model Patent Announcement No. CN202282475U discloses a card edge connector and its blanking terminal. The blanking terminal of the card edge connector has a sheet-shaped terminal body, and the terminal body includes a contact part and a fixed part, a bezel protruding longitudinally is formed at one edge of the fixed part, and a groove for the above-mentioned bezel to be embedded is formed in the fixing space of each terminal groove, so that each terminal can be more firmly restricted The assembly stability of each terminal groove is increased, so as to further reduce problems such as left and right lateral deflection of the terminal in the terminal groove. However, the terminal will have a cut surface during the molding process, and the cut surface is not smooth, so that the terminal will not be completely attached to the inner wall of the terminal groove, and the terminal may still shake in the terminal groove.

In view of the above problems, it is necessary to improve the prior art to overcome the above defects.

The purpose of the present invention is to provide a card edge connector in which the terminal and the terminal groove are more stably matched.

In order to achieve the above object, the present invention adopts the following technical solutions: a card edge connector, which includes a longitudinally long insulating body and a plurality of conductive terminals installed on the insulating body along the longitudinal direction, and the insulating body is provided with a A card slot on the surface for accommodating one end of an electronic card, a first wall and a second wall located on both sides of the card slot and a rear wall connecting the first wall and the second wall, the first wall and the second wall The two walls are respectively provided with a plurality of first terminal grooves and a plurality of second terminal grooves, and the plurality of conductive terminals include first conductive terminals accommodated in the first terminal grooves and second conductive terminals accommodated in the second terminal grooves , the first conductive terminal includes a first holding portion held on the rear wall, the first holding portion has a metal surface and a cutting surface, and the cutting surface includes a first cutting surface facing the first wall or the second wall surface, the first cutting surface includes a shear surface and a tear surface connected to each other, so The tearing surface is lower than the shearing surface, the rear wall is provided with a fixing groove for fixing the first holding part, and the fixing groove has an inner wall corresponding to the shearing surface and the tearing surface, and the The tear surface abuts against the inner wall.

Compared with the conventional technology, the inner wall of the fixing groove in the present invention is set to a structure corresponding to the shear surface and the tear surface generated during the molding process of the terminal, so that the tear surface and the inner wall butt against each other to prevent the left and right lateral deflection of the terminal in the terminal slot:

100: electrical connector

11: Main body

12:Clamping arm

131: first terminal slot

141: Second terminal slot

151: fixed slot

20: The first conductive terminal

211: Spikes

213: cutting surface

215: shear plane

217: extrusion surface

23: The first welding part

31: The second holding part

33: Second welding part

50: Second locking piece

10: Insulation body

110: clamping arm

13: first wall

14: Second Wall

15: rear wall

152: inner wall

21: The first holding part

212: metal surface

214: The first cutting surface

216: Tear surface

22: The first contact part

30: Second conductive terminal

32: Second contact part

40: The first locking piece

The first figure is a perspective view of the card edge connector of the present invention; the second figure is an exploded perspective view of the card edge connector shown in the first figure; the third figure is a perspective view of the first conductive terminal and the second conductive terminal shown in the second figure Stereo view; the fourth figure is a partially enlarged view of the first conductive terminal shown in the third figure; the fifth figure is a cross-sectional view of the card edge connector shown in the first figure along the V-V direction; and the sixth figure is the drawing shown in the fifth figure Enlarged view of the circled part.

Referring to the first to second figures, the present invention discloses a card edge connector 100, which includes a lengthwise insulating body 10 and a plurality of first conductive terminals 20 and a plurality of second conductive terminals 20 mounted on the insulating body 10 along the longitudinal direction. Conductive terminal 30. The insulating body 10 includes an elongated main body 11 and locking arms 12 extending forward from two ends of the main body 11 . The main body 11 defines a slot 110 extending through the front end, a first wall 13 and a second wall 14 located on both sides of the slot 110 , and a rear wall 15 connecting the first wall 13 and the second wall 14 . The card slot 110 is for inserting one end of an electronic card (not shown). The card edge connector 100 further includes a first latch 40 and a second latch 50 installed on the clip arm 12 . The first locking member 40 cooperates with the second locking member 50 to fix the electronic card to the card edge connector 100 .

Referring to the second to sixth figures, the first wall 13 and the second wall 14 are respectively provided with a plurality of first terminal grooves 131 and a plurality of second terminal grooves 141 . The plurality of first conductive terminals 20 are accommodated in the first terminal groove 131 , and the plurality of second conductive terminals 30 are accommodated in the second terminal groove 141 . The first conductive terminal 20 includes a first holding portion 21 fixed on the rear wall 15, a first contact portion 22 extending forward from one end of the first holding portion 21 into the slot 110, and a first contact portion 22 extending backward from the other end of the first holding portion 21. The first weld 23 extends beyond the rear wall 15 . The first holding portion 21 has a metal surface 212 and a cutting surface 213 . The first holding part 21 is a hollow frame part, and the first holding part 21 is provided with a thorn 211 facing the first wall 13, and the thorn 211 is adjacent to the front end of the rear wall 15. The above-mentioned cutting surface 213 is disposed on the protrusion 211 . The cutting surface 213 includes a first cutting surface 214 facing the first wall 13 . The first cutting surface 214 includes a shearing surface 215 and a tearing surface 216 connected to each other, and the tearing surface 216 extends obliquely downward from the shearing surface 215 . The first cutting surface 214 also includes an extrusion surface 217 on the other side of the shear surface 215, the shear surface 215 is located between the extrusion surface 217 and the tear surface 216, and the extrusion surface 217 is inclined downward from the shear surface 215 extend. The rear wall 15 defines a fixing groove 151 for fixing the first holding portion 21 , and the fixing groove 151 has an inner wall 152 corresponding to the shearing surface 215 and the tearing surface 216 . The tearing surface 216 is lower than the shearing surface 215 , the tearing surface 216 abuts against the inner wall 152 , and there may be a gap between the shearing surface 215 and the inner wall 152 of the fixing groove 151 . With this design, the first holding portion 21 can be stably held by the inner wall 152 of the fixing groove 151 , preventing the first conductive terminal 20 from tilting left and right in the first terminal groove 131 . The second conductive terminal 30 includes a second holding portion 31 , a second contact portion 32 extending backward from one end of the second holding portion 31 into the slot 110 , and a second welding portion extending forward from the other end of the second holding portion 31 33. The second holding portion 31 is fixed on the second wall 14 . The second weld 33 extends beyond the second wall 14 . The first contact portion 22 and the second contact portion 32 are respectively located on two sides of the slot 110 . After the electronic card is inserted into the card slot 110 , it contacts the first contact portion 22 and the second contact portion 32 . The first soldering portion 23 and the second soldering portion 33 are soldered to an external circuit board.

To sum up, the present invention clearly meets the requirements of an invention patent, and a patent application is filed in accordance with the law. However, the above descriptions are only preferred implementation modes of the present invention, and cannot limit the scope of rights of the present invention. All equivalent modifications or changes made by those with ordinary knowledge in the technical field according to the spirit of the present invention are still covered within the scope of the appended patent application.

214: The first cutting surface

215: shear plane

216: Tear surface

217: extrusion surface

Claims (8)

A card edge connector, which includes a longitudinally long insulating body and a plurality of conductive terminals installed on the insulating body along the longitudinal direction, and the insulating body is provided with a card slot for accommodating one end of an electronic card through its front face , the first wall and the second wall located on both sides of the card slot and the rear wall connecting the first wall and the second wall, the first wall and the second wall are respectively provided with a plurality of first terminal slots and a plurality of The second terminal groove, the plurality of conductive terminals include a first conductive terminal accommodated in the first terminal groove and a second conductive terminal accommodated in the second terminal groove, the first conductive terminal includes a terminal fixed in the The first holding portion of the rear wall, the first holding portion has a metal surface and a cutting surface, wherein the cutting surface includes a first cutting surface facing the first wall or the second wall, and the first cutting surfaces include The shearing surface and the tearing surface, the tearing surface is lower than the shearing surface, the rear wall is provided with a fixing groove for fixing the first holding part, and the fixing groove has a The inner walls of the tear surfaces correspond to each other, and the tear surfaces abut against the inner walls. The card edge connector as claimed in claim 1, wherein there is a gap between the shearing surface and the inner wall of the fixing groove. The card edge connector according to claim 2, wherein the tearing surface extends obliquely downward from the shearing surface. The card edge connector according to claim 3, wherein the cutting surface further includes an extrusion surface located on the other side of the shear surface, and the shear surface is located between the extrusion surface and the tear surface , the extrusion surface extends obliquely downward from the shear surface. The card edge connector according to claim 1 or 4, wherein the first holding part is a hollow frame part, and the first holding part is provided with a thorn at the place facing the first wall, and the The thorn is adjacent to the front end surface of the rear wall, and the above-mentioned cutting surface is arranged on the thorn. The card edge connector according to claim 5, wherein the first conductive terminal further includes a first contact portion extending forward from one end of the first holding portion into the card slot and extending from the first holding portion The other end of the portion extends rearward beyond the first welded portion of the rear wall. The card edge connector according to claim 6, wherein the second conductive terminal includes a second holding portion, a second contact portion extending backward from one end of the second holding portion, and a second contact portion extending from the second holding portion The other end of the second holding portion is a second welding portion extending forward, and the second contact portion and the first contact portion are respectively located on two sides of the slot. The card edge connector as claimed in claim 7, wherein the insulating body includes a main body and a clamping arm extending forward from both ends of the main body, and the card edge connector also includes a The first lock piece and the second lock piece of the arm.

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