TWM456633U - Card connector - Google Patents

Description

Card edge connector

The present invention relates to a card edge connector, and more particularly to a card edge connector having a metal locking member.

Taiwan Patent No. I264167 discloses a card edge connector for electrically connecting an electronic card to a circuit board. The card edge connector includes an elongated insulating body and a plastic arm extending forward from both ends of the insulating body. And a conductive terminal fixed on the insulating body, wherein each of the plastic arms is respectively equipped with a locking mechanism, and the locking mechanism comprises a locking component locked to the electronic card and a welding component welded to the circuit board, due to the lock The pressing surface of the buckle portion and the electronic card extends obliquely downward. When the locking portion is pressed against the electronic card, the pressing surface may cause damage to the electronic card; the locking member and the welding member are stably fixed by the barb. Insulating body, due to the large number of terminals, when the card edge connector is soldered on the circuit board, the insulating body may be distorted by heat, and the coplanarity of the soldering legs of the conductive terminals and the soldering legs of the soldering members is difficult to be ensured.

Therefore, it is necessary to modify the card edge connector described above.

The purpose of this creation is to provide a card edge connector that reduces damage to the electronic card.

In order to solve the foregoing technical problems, the present invention adopts the following technical solution: a card edge connector comprising an insulative housing, a conductive terminal held on the insulative housing, and a metal latching member, the insulative housing comprising an elongated base and An end wall at both ends of the base, wherein the base is provided with an electronic card insertion In the central slot, the metal locking member is fixed on the end wall, the conductive terminal is located on the lower two sides of the central slot, and the metal locking member extends inwardly with a locking portion, and the locking portion The outer side surface is a downwardly inclined guiding surface, and the inner side surface is a pressing surface that is pressed against the electronic card, and the pressing surface is disposed in a plane shape parallel to the electronic card.

Compared with the prior art, the present invention has the following functions: the locking portion is pressed against the pressing surface of the electronic card to be parallel to the electronic card, which is beneficial to reduce the locking portion when the electronic card is locked. Wear on electronic cards.

100‧‧‧ card edge connector

10‧‧‧ base

101‧‧‧Central slot

11‧‧‧End wall

111‧‧‧Installation slot

12‧‧‧Lock arm

121‧‧‧Clock Department

2‧‧‧Electrical terminals

211‧‧‧ first contact

212‧‧‧First Welding Department

221‧‧‧Second contact

222‧‧‧Second welding department

31‧‧‧Metal locks

311‧‧‧ barbed

312‧‧‧Locking Department

313‧‧‧Danger Prevention Department

314‧‧‧First resist

315‧‧‧second resist

316‧‧‧pressure surface

32‧‧‧welding parts

321‧‧‧Bend

322‧‧‧Extension

323‧‧‧Weld Department

The first figure is a perspective view of the card edge connector of the present invention; the second figure is an exploded view of the card edge connector shown in the first figure; the third figure is a perspective view of the other side of the card edge connector shown in the first figure; The fourth figure is a partial enlarged view of the card edge connector shown in the third figure.

Referring to the first figure, the present card edge connector 100 mainly includes an insulative housing 1 , a conductive terminal 2 fixed on the insulative housing 2 , a metal latching member 31 assembled to the insulative housing 1 , and a soldering member 32 .

Referring to the first and second figures, the insulative housing 1 has a base portion 10 disposed longitudinally and an end wall 11 at both ends of the base portion 10. The base 10 is further provided with a central slot 101 into which an electronic card (not shown) is inserted. The end wall 11 integrally extends forwardly with a plastic latching arm 12 on both sides of the central slot 101 and perpendicular to the base 10. The front end of the end wall 11 is provided with a mounting groove 111. An engaging portion 121 that engages with a notch (not shown) provided in the electronic card is protruded inwardly from the inner side of the plastic latching arm 12.

The conductive terminals 2 are arranged in two rows, which respectively include a first contact portion 211 protruding downward into the central slot 101, a second contact portion 221 protruding upward to the central slot 101, and extending rearwardly out of the base portion 10 The first welded portion 212 of the end surface and the second welded portion 222 extending forwardly from the front end surface of the base portion 10. The first contact portion 211 and the second contact portion 221 are disposed in front and rear, and the first welded portion 212 and the second welded portion 222 are located in the same plane.

The metal latching member 31 is disposed in a flat shape, and is vertically abutted against the outer side of the plastic latching arm 12, and is fixed to the end wall 11 by the barbs 311 provided at the rear end of the metal latching member 31. The metal locking member 31 is provided with a foolproof portion 313 (in conjunction with the first figure) located above the engaging portion 121 at the free end. In conjunction with the fourth figure, the lower edge of the metal locking member 31 extends inwardly with a first abutting piece 314 located below the engaging portion 121 and a second abutting piece 315 extending upward from the first abutting piece 314. A locking portion 312 located inside the plastic locking arm 12 extends from the upper edge of the metal locking member 31, and the locking portion 312 is located behind the foolproof portion 313. The outer side surface of the locking portion 312 is inclined downward to form a guiding surface 317 for guiding the lower surface of the electronic card, and the inner side surface is a pressing surface 316 which is pressed against the upper surface of the electronic card. The pressing surface 316 is disposed in a planar shape parallel to the electronic card, and the planar pressing surface 316 is formed by cutting a part of the inner side surface of the locking portion 312.

Since the pressing surface 316 of the locking portion 312 is disposed in a plane shape and is parallel to the electronic card, when the electronic card is obliquely inserted and rotated and pressed into place, the contact of the locking portion 312 with the electronic card is in face-to-face contact. Compared with the prior art, the pressing surface of the locking portion is not cut into a planar card edge connector (the card edge connector with the non-planar contact between the pressing surface and the electronic card), the electrical connector of the present invention is significantly reduced. The damage of the electronic card by the locking portion 312 is small.

Referring to FIG. 2 and FIG. 4 , the soldering member 32 is also disposed in a flat shape, and the soldering member 32 is horizontally disposed below the plastic latching arm 12 . The two sides of the welding member 32 are planarly disposed and have a thickness smaller than the height of the mounting groove 111, so that the rear end of the welding member 32 is movably mounted in the mounting groove 111. The front end of the weldment 32 has a bent portion 321 bent upward and an extended portion 322 extending forward from the bent portion 321 . The first abutting piece 314 abuts against the front end of the bending part 321 , thereby restricting the welding piece 32 from being disengaged forwardly from the end wall 11 , and the second resisting piece 315 is located outside the extending part 322 , in the metal buckle When the piece 31 moves outwardly with the plastic locking arm 12, the second abutting piece 315 abuts against the plastic locking arm 12 and can restrain the extending portion 322 outside the second abutting piece 315. The lower side of the welding member 32 is further bent to extend a welded portion 323 located inside the plastic locking arm 12.

Since the number of the conductive terminals 2 is large, when the card edge connector is soldered to the circuit board, the longitudinally disposed base portion may be distorted by heat, thereby causing the soldering portion of each of the conductive terminals and the soldering portion 32 of the soldering member 32. The coplanarity is difficult to guarantee. Because the thickness of the soldering member 32 is smaller than the height of the mounting slot 111, the soldering member 32 can be floated up and down in the mounting slot 111, thereby adjusting the soldering portion 323 to be naturally flattened on the circuit board, thereby facilitating the card. The coplanarity of the edge connector.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

12‧‧‧First card slot

314‧‧‧Second card slot

315‧‧‧Resistance surface

316‧‧‧ containment chamber

32‧‧‧Contacts

322‧‧‧Weld Department

323‧‧‧First Welding Department

Claims (8)

A card edge connector comprising: an insulative housing having an elongated base and an end wall at each end of the base, wherein the base is provided with a central slot for insertion of an electronic card; and the conductive terminal is retained by the insulative body, and The upper side of the central slot is located on the lower side of the central slot; and the metal locking member is fixed to the end wall and extends inwardly with a locking portion, the outer side of the locking portion is a downwardly inclined guiding surface, and the inner side is Pressing against the pressing surface of the electronic card: wherein the pressing surface is disposed in a plane shape parallel to the electronic card. The card edge connector of claim 1, wherein the latch portion is partially cut at an end of the inner side surface to form the planar abutting surface. The card edge connector of claim 2, wherein the card edge connector further comprises a plastic latch arm extending forward from the end wall, the metal latching member abutting the plastic latch arm On the outside, the locking portion extends to the inner side of the plastic locking arm. The card edge connector of claim 3, wherein the card edge connector further comprises a vertically long flat-shaped soldering member, the soldering member being horizontally disposed under the plastic latching arm, the soldering member The rear end is movably mounted to the end wall, and the front end is resisted by the metal locking member, and one side of the welded member extends with a welded portion. The card edge connector of claim 4, wherein the front end of the metal locking member is provided with a first resisting piece bent inwardly and a second resisting piece bent upward from the first resisting piece. The front end of the welding member has an upwardly bent bent portion and an extending portion extending forward from the bent portion, the first resisting piece abuts against the bent portion, and the second resisting piece moves outwardly on the metal locking member It abuts against the plastic lock wall and can limit the extension to the outside of the second resisting piece. The card edge connector of claim 5, wherein both sides of the welding member are planar. The card edge connector of claim 6, wherein the metal locking component further has a foolproof portion in front of the locking portion, and the plastic locking arm has a engaging portion protruding in a downward direction of the foolproof portion. . The card edge connector of claim 7, wherein the conductive terminal has a first contact portion protruding downward to the central slot and a second contact portion protruding upward to the central slot, The first contact portion and the second contact portion are disposed in a front-rear row, and the conductive terminal includes a first soldering portion extending from a front end surface of the base portion and a second soldering portion extending from a rear end surface of the base portion.