TWI569521B - Card edge connector - Google Patents

Description

Card edge connector

The present invention relates to a card edge connector, and more particularly to a card edge connector for mounting to a printed circuit board.

Card edge connectors are widely used in computer equipment to accommodate an electronic card. A common card edge connector generally includes an elongated insulating body, a plurality of conductive terminals held in the insulating body, and is mounted in the insulating body to be fixed to Scratch board for printed circuit boards. The insulative housing is provided with a central slot extending in the longitudinal direction to receive an end edge of the electronic card. The conductive terminals are located on both sides of the central slot and extend inwardly into the central slot to hold the electronic card to be stably electrically connected to the gold finger on the electronic card.

However, with the continuous development of technology, the transmission rate of electronic cards is getting higher and higher, and the number of conductive terminals and electronic card gold fingers is correspondingly increased. In a limited space, the thickness of the insulating body between adjacent conductive terminals is relatively reduced. The strength between the conductive terminal and the insulating body may be reduced. When the conductive terminal is subjected to a large impact force during the use of the card edge connector, the insulating body may be easily broken, and the insulating body may be damaged, thereby affecting the card edge connector. Electrical transmission.

Therefore, it is indeed necessary to design an improved card edge connector to overcome the deficiencies of the prior art.

In view of the foregoing, the technical problem to be solved by the present invention is to provide a The terminal is stably held on the card edge connector of the insulative housing.

In order to solve the foregoing technical problem, the card edge connector of the present invention adopts the following technical solution: a card edge connector for plugging an electronic card, the card edge connector comprising: an insulating body, which is longitudinally formed and formed with a plurality of a terminal receiving slot; the plurality of conductive terminals are retained in the insulating body and housed in the terminal receiving groove, the conductive terminal has a holding portion held in the insulating body; the holding portion has a positioning portion that interferes with the insulating body, and the positioning portion The positioning portion has an inclined portion that guides insertion of the conductive terminal.

Compared with the prior art, the card edge connector of the present invention has the following effects: the inclined portion provided by the conductive terminal holding portion can guide the conductive terminal to be accurately and stably inserted into the insulating body.

1‧‧‧Insulating body

100‧‧‧ card edge connector

101‧‧‧Central slot

102‧‧‧First terminal receiving slot

103‧‧‧Second terminal receiving slot

1031‧‧‧ slot wall

11‧‧‧ side wall

110‧‧‧Keychain

12‧‧‧ End wall

2‧‧‧Electrical terminals

21‧‧‧First terminal

211‧‧‧First Holding Department

212‧‧‧First contact

213‧‧‧First Welding Department

214‧‧‧Department

215‧‧‧First Positioning Department

2151‧‧‧ inclined section

216‧‧‧Second Positioning Department

22‧‧‧second terminal

221‧‧‧Second Holding Department

2210‧‧‧ Main body

222‧‧‧Second contact

223‧‧‧Second welding department

224‧‧‧ Third Positioning Department

2241‧‧‧ inclined section

3‧‧‧Scratch board

500‧‧‧Printed circuit board

The first figure is a perspective view of the card edge connector of the present invention, and a partial conductive terminal is decomposed; the second figure is a cross-sectional view of the card edge connector shown in the first figure along line II-II; the third figure is shown in the first figure. A perspective view of the card edge connector at another angle, and a partial conductive terminal is decomposed; the fourth figure is a perspective view of the conductive terminal of the card edge connector shown in the first figure; the fifth figure is the card edge connector shown in the first figure. A partial enlarged view; the sixth figure is a partial enlarged view of the card edge connector shown in the third figure.

Referring to the first to third figures, the card edge connector 100 of the present invention can be soldered to the printed circuit board 500 and used to plug an electronic card (not shown); the card edge connector 100 includes a longitudinal insulation. a body 1, a plurality of conductive terminals 2 held in the insulative housing 1 and It is held in the insulative housing 1 for fixing to at least one of the grip members 3 on the printed circuit board.

The insulative housing 1 is provided with two side walls 11 extending in the longitudinal direction, and the end walls 12 of the ends of the two side walls 11 are connected in the lateral direction of the insulative housing 1 so that the insulative housing 1 is formed to extend in the longitudinal direction (ie, the X direction). a central slot 101 for receiving an electronic card; the insulative housing 1 has a key button 110 protruding in the central slot 101 for engaging a corresponding recess (not shown) on the electronic card. Prevent the electronic card from being inserted back. The conductive terminal 2 is received in the two rows in the insulative housing 1 and includes a first terminal 21 inserted into the insulative housing in a direction perpendicular to the longitudinal direction (ie, the Y direction), and an insulative body inserted opposite to the insertion direction of the first terminal 21 The two terminals 22, the insulative housing 1 has a plurality of first terminal receiving slots 102 and second terminal receiving slots 103 that communicate with the central slot 101 and accommodate the two sets of terminals. The first and second terminals are respectively arranged on the two side walls. The first terminal 21 is provided with a first holding portion 211 held in the insulating body, a first contact portion 212 extending from the first holding portion 211 and protruding into the central slot 101, and extending from the first contact portion 211 The first soldering portion 213 outside the insulating body is electrically connected to the printed circuit board; the second terminal is similar to the first terminal structure, and has a second holding portion 221, a second contact portion 222, and a second soldering Department 223. The first contact portion and the second contact portion are oppositely disposed on opposite sides of the central slot 101 in a vertical direction (ie, a Z direction) perpendicular to the longitudinal direction and the mating direction to respectively contact opposite sides of the electronic card; In the mating direction, the soldering portions of the first and second terminals are respectively located on both sides of the insulating body, which can reduce the occupied area on the printed circuit.

As shown in the fourth to sixth embodiments, the first holding portion 211 of the first terminal 21 has a stopping portion 214 received in the first terminal receiving groove 102 of the insulative housing, and is disposed adjacent to the stopping portion 214. a first positioning portion 215 and a second positioning portion 216, the first positioning The portion 215 and the second positioning portion 216 interfere with the insulative housing, and the stopper portion 214 is defined by the insulative housing in the vertical direction; when the first terminal 21 is inserted into the first terminal receiving slot 102, the first positioning portion 215 is The barb structure has a groove wall on both sides of the first terminal receiving groove, and can interfere with the insulating body and continue to advance. The first positioning portion 215 is provided with an inclined portion 2151 which interacts with the insulating body, and the insulating body The reaction force applied to the inclined portion 2151 causes the first terminal to move close to the lower side of the first terminal receiving groove, which facilitates the smooth and accurate insertion of the first terminal; the stopping portion 214 ensures that the first terminal is in a predetermined direction. The first positioning portion 216 also has a barb structure and is fixed in the insulating body by interference, which is favorable for the first terminal 21 to be stably fixed to the insulating body 1 . In the embodiment, the stopping portion 214 does not interfere with the insulating body 1 or is combined with a low interference force, and the insertion resistance can be relatively reduced while ensuring accurate insertion of the first terminal.

The second holding portion 221 of the second terminal 22 has a main body portion 2210 and a third positioning portion 224 thinner than the main body portion, thereby forming a step shape, and stably fixing the second terminal while reducing damage to the insulating body; The positioning portion 224 and the insulative housing interfere with each other. When the second terminal 22 is inserted into the second terminal receiving groove 103, the third positioning portion 224 also has a barb structure that breaks the groove walls on both sides of the second terminal receiving groove, and interferes with the insulating body. And the third positioning portion 224 is also provided with an inclined portion 2241 acting on the insulating body, and the insulating body applies a reaction force to the inclined portion 2241 to move the second terminal to the lower side of the second terminal receiving groove. The slotted wall 1031 of the second terminal receiving slot 103 is stepped and cooperates with the stepped second retaining portion 221; since the thickness of the third positioning portion 224 is reduced, While the second terminal is stably positioned, it is also advantageous to reduce the thickness of the card edge connector.

Thus, the card edge connector of the present invention is provided with the inclined portion through the first and second terminals. The guiding can realize accurate and stable insertion of the first and second terminals; and the segment structure of the first terminal holding portion also facilitates stable fixing of the first terminal and relatively reduces insertion resistance.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing 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.

1‧‧‧Insulating body

101‧‧‧Central slot

103‧‧‧Second terminal receiving slot

11‧‧‧ side wall

12‧‧‧ End wall

212‧‧‧First contact

213‧‧‧First Welding Department

221‧‧‧Second Holding Department

222‧‧‧Second contact

223‧‧‧Second welding department

3‧‧‧Scratch board

Claims (8)

A card edge connector for inserting an electronic card, the card edge connector comprising: an insulating body, which is longitudinally formed and formed with a plurality of terminal receiving slots; and a plurality of conductive terminals are fixed in the insulating body and housing the terminals In the receiving slot, the conductive terminal has a holding portion that is retained in the insulating body; wherein the holding portion has a positioning portion that interferes with the insulating body and a stopping portion that is received in the terminal receiving groove, the positioning portion and the stopping portion Adjacently disposed and having an inclined portion for guiding the insertion of the conductive terminal, the stopper is defined by the insulating body in a vertical direction. The card edge connector of claim 1, wherein the stopper portion does not interfere with the insulating body or is combined with a low interference force. The card edge connector of claim 1, wherein the positioning portion comprises a first positioning portion and a second positioning portion on both sides of the stopping portion. The card edge connector of claim 3, wherein the first and second positioning portions each have a barb structure that interferes with the insulative body. The card edge connector of claim 2, wherein the conductive terminals are received in two rows in the insulative housing, and include a first terminal inserted into the insulative housing in a direction perpendicular to the longitudinal direction, and the first terminal. The insertion direction is reversed to the second terminal of the insulative housing. The card edge connector of claim 5, wherein the holding portion of the second terminal has a body portion and a positioning portion that is thinner than the body portion. The card edge connector of claim 6, wherein the positioning portion of the second terminal interferes with the insulative body. The card edge connector of claim 7, wherein the terminal receiving groove of the insulating body receiving the second terminal has a stepped groove wall.