TWM471044U - Card edge connector - Google Patents

Description

Card edge connector

This creation relates to the field of electronics, and in particular to a card edge connector.

A card edge connector, such as a card edge connector used in a notebook computer, generally includes an insulator and a plurality of conductive terminals disposed in the insulator. The insulator includes a slot extending in the longitudinal direction and a plurality of terminal slots arranged at intervals on the upper and lower sides of the slot. The conductive terminal includes a vertically disposed base portion, a contact portion extending from one end of the base portion toward one side, a solder portion extending from the other end of the base portion toward the other side, and extending from the base portion toward one side and located at the contact portion and the solder portion. The holding unit. However, the conductive terminal, in particular, the conductive terminal received in the lower terminal channel has an F configuration, so that the height of the conductive terminal is high, resulting in a high height of the insulator, thereby causing a high height of the entire connector, which is disadvantageous for The trend of thinning.

Therefore, it is necessary to provide a new card edge connector to overcome the above problems.

Based on this, it is necessary to provide a lower height card edge connector.

The present invention is achieved by the following technical solution: a card edge connector is a plug-in memory module, which comprises an insulator and a plurality of conductive terminals, the insulator includes a slot extending in the longitudinal direction, and the docking in the slot The plurality of upper and lower channels are respectively located on the upper and lower sides of the slot, and the conductive terminal includes a terminal received in the upper channel and a terminal received in the lower channel, the lower terminal The first holding portion that is retained in the lower channel, the first contact portion extending from one end of the first holding portion in the slot, and the first soldering portion that is bent and extended from the other end of the first holding portion, the slot Height of the center line to the mounting surface of the first welded portion 1.20mm.

The beneficial effects of the creation are as follows: the terminal structure under the card edge connector is simple, the installation is convenient, and the thickness of the lower side of the insulator of the lower terminal is reduced, thereby reducing the thickness of the entire insulator.

100‧‧‧ card edge connector

200‧‧‧ memory module

300‧‧‧ boards

1‧‧‧Insulator

11‧‧‧Slot

110‧‧‧Defense button

12‧‧‧Upper channel

13‧‧‧ lower channel

131‧‧‧ holding slot

132‧‧‧ Containment trough

2‧‧‧Electrical terminals

22‧‧‧Upper terminal

23‧‧‧ Lower terminal

221‧‧‧Second Holding Department

222‧‧‧Second contact

223‧‧‧Second welding department

231‧‧‧First Holding Department

232‧‧‧First contact

233‧‧‧First Welding Department

4‧‧‧Extension arm

41‧‧‧ card slot

5‧‧‧ card holding arm

51‧‧‧Snap Department

52‧‧‧Boss

53‧‧‧Connecting Department

6‧‧‧Metal body

61‧‧‧Keeping Department

62‧‧‧Connected Department

63‧‧‧welding piece

The first figure is a three-dimensional assembly diagram of the memory card edge connector connecting the memory module and the circuit board; the second figure is a three-dimensional schematic view of the card edge connector connected to the memory module and the circuit board in the first figure; 1 is a perspective view of the card edge connector shown on the first circuit board; the fourth figure is an exploded perspective view of the card edge connector shown in the first figure; the fifth figure is the card edge connector portion of the first figure The three-dimensional enlarged view of the area; the sixth figure is a cross-sectional view of the card edge connector shown in the first figure along the line VI-VI.

Referring to FIG. 1 to FIG. 5 , the present invention discloses a card edge connector 100 for latching the memory module 200 and electrically connecting the memory module 200 to a circuit board 300. The memory module includes Sub-board and wafer mounted on the sub-board (not shown). The card edge connector 100 includes an insulator 1 and a plurality of conductive terminals 2, and the insulator 1 includes a slot 11 extending in the longitudinal direction, a foolproof button 110 located in the slot, and a plurality of upper channels 12 on the upper and lower sides of the slot 11. Lower channel 13. The lower channel 13 has a T shape, and includes a leveling groove 131 and a self-slot recessed from the surface of the insulator 1 The lower side is recessed downwardly and communicates with the vertical receiving groove 132 of the holding groove 131. The receiving groove 132 extends rearward to penetrate the rear surface of the insulator. The lower rear surface of the insulator 1 is further rearward than the upper rear surface of the insulator 1. The plurality of upper channels 12 are arranged in a row, and the plurality of lower channels 13 are arranged in a row. The upper channel 12 and the lower channel 13 are alternately arranged from each other as viewed from the upper surface of the insulator.

The conductive terminal 2 includes a terminal 22 received in the upper channel 12 and a terminal 23 received in the lower channel 12. The lower terminal 23 includes a first holding portion 231 that is fixed to the holding groove 131 , a first contact portion 232 that is bent forward from one end of the first holding portion 231 , and a first bent portion that extends backward from the other end of the first holding portion 231 . The soldering portion 233 receives the first contact portion 232 in the receiving groove 132 and extends into the slot 11 . The first soldering portion 233 is exposed to the rear surface of the rear surface of the insulator 1.

The upper terminal 22 includes a second holding portion 221 that is fixed on the upper side of the insulator 1 , a second contact portion 222 that is bent backward from the second holding portion 221 and is received in the receiving slot 11 , and the second holding portion 221 . The second welded portion 223 is bent forward, and the second welded portion 223 extends out of the insulator 1 and is located in front of the insulator 1. The welding surface of the first welded portion 233 and the welded surface of the second welded portion 223 are in the same horizontal plane, which facilitates simultaneous soldering of the upper and lower terminals 22, 23 to the circuit board 300.

The card edge connector 100 further includes a pair of latch arms extending forwardly from opposite ends of the insulator 1, the latch arms including the extension arms 4 and the latch arms 5 respectively mounted on the extension arms 4. The extension arm 4 is integrally formed with the insulator 1. The extension arm 4 is provided with a card slot 41 which is recessed forward from the rear surface thereof. The latching arm 5 has a latching portion 51 at the front end thereof and being held by the card slot 41, and a convex portion at the rear end thereof and protruding inwardly. The table 52 and the connecting portion 53 of the connecting portion 51 and the boss 52.

The card edge connector 100 further includes a metal body 6 mounted on the latching arm 5 and the extension arm 4, the metal body 6 is held in the extension arm 4, and the metal body 6 is integrally formed with the clamping arm 5, and the clamping arm is 5 Cover and connect the outer surface of the metal body 6. The metal body 6 includes a holding portion 61 that is held in the extension arm 4, a connecting portion 62 that extends rearward from the holding portion 61, and a welding piece 63 that extends inward from the connecting portion 62. The connecting portion 62 is fixed to the connecting portion 53 of the holding arm 5.

As shown in the sixth figure, the height A of the mounting line of the center line of the slot to the first soldering portion 1.20mm to improve the distance B from the upper surface of the insulator 1 to the mounting surface of the first welded portion B 2.70mm. A wafer (not shown) on the memory module 200 is mounted on one surface of the circuit board. The height allows the memory module 200 inserted into the slot 11 to be thinner and more compact.

When the memory module 200 is inserted into the card edge connector 100, the first and second soldering portions 233 and 223 of the lower terminal 23 and the upper terminal 22 are soldered to the conductive sheet 301 of the circuit board 300, and the metal body 6 is soldered. The sheet 63 is soldered to the solder tab 302 of the circuit board 300. The bosses 52 of the holding arms 5 are held on both sides of the memory module 200.

The present card edge connector 100 improves the manner in which the insulator is connected to the lower terminal in the conventional card edge connector, thereby reducing the thickness of the lower side of the insulator 1 on which the lower terminal 23 is mounted, thereby reducing the thickness of the entire insulator 1.

The specific implementations listed above are non-limiting, and various modifications and changes made by those skilled in the art without departing from the scope of the invention are within the scope of the present invention.

11‧‧‧Slot

12‧‧‧Upper channel

13‧‧‧ lower channel

131‧‧‧ holding slot

132‧‧‧ Containment trough

221‧‧‧Second Holding Department

222‧‧‧Second contact

223‧‧‧Second welding department

231‧‧‧First Holding Department

232‧‧‧First contact

233‧‧‧First Welding Department

Claims (8)

A card edge connector is a plug-in memory module, comprising an insulator, comprising a slot extending in a longitudinal direction, a foolproof button located in the slot, and a plurality of upper channels respectively located at upper and lower sides of the slot And the lower channel; the conductive terminal comprises: a terminal received in the upper channel and a terminal received in the lower channel; wherein the lower terminal comprises a first holding portion held in the lower channel, a first contact portion extending from one end of the holding portion in the slot and a first soldering portion bent from the other end of the first holding portion, the height of the center line of the slot to the mounting surface of the first soldering portion 1.20mm. The card edge connector of claim 1, wherein the lower channel is T-shaped, and comprises a horizontal holding groove and a vertical receiving groove communicating with the slot, wherein the first holding portion is held in the The holding slot is received by the first contact portion in the receiving slot and extends into the slot. The card edge connector of claim 2, wherein the memory module comprises a sub-board and a wafer on a side of the sub-board. The card edge connector of claim 1, wherein the upper terminal includes a second holding portion that is fixed on the upper side of the insulator, and is bent backward from the second holding portion and is received in the slot. And a second soldering portion extending forward from the second retaining portion, the second soldering portion being located in front of the insulator. The card edge connector of claim 4, wherein the welding surface of the first welded portion and the welded surface of the second welded portion are in the same horizontal plane. The card edge connector of claim 1, wherein the card edge connector further comprises a pair of latch arms extending forwardly from opposite ends of the insulator. The card edge connector of claim 6, wherein the latch arm comprises an extension arm and a clamping arm mounted on the extension arm, the rear end of the clamping arm having a boss protruding inward . The card edge connector of claim 7, wherein the card edge connector further comprises And a metal body mounted on the holding arm and the extending arm, wherein the metal body and the holding arm are respectively clamped to the extending arm.