Card edge connector

Abstract

A card edge connector comprises a lengthwise insulating body, a card slot penetrating through the insulating body upwards and a plurality of terminal slots communicated with the card slot. An electronic card can be inserted into the card slot, and a conductive terminal which can be electrically connected with the electronic card is accommodated in the terminal slot; the conductive terminal comprises a tail part, a holding part, a contact part and a connecting part, wherein the tail part, the holding part, the contact part and the connecting part sequentially extend from bottom to top; the holding part extends into the terminal groove from the tail part; the contact part is electrically contacted with the electronic card; the tail end, facing the contact part, of the connecting part is bent to form a bent part, and the bent part can be electrically connected with the tail end of the contact part to form a short electric loop.

Description

Technical Field

[0001] This utility model relates to a card edge connector. Background Technology

[0002] For related known technologies, please refer to the memory slot disclosed in Chinese Utility Model Patent CN222107055U. This memory slot is located on a circuit board and is suitable for inserting memory. The memory has a plug-in portion. The memory slot is characterized by comprising: a body having opposing upper and lower surfaces, the lower surface facing the circuit board, and the upper surface recessed downwards to form a groove suitable for accommodating the plug-in portion; and a plurality of pins arranged along the extension direction of the groove. Each pin includes a connecting portion, an extension portion, and a contact portion connected in sequence. The connecting portion protrudes from the lower surface and is connected to the circuit board. The extension portion extends from the connecting portion toward the upper surface, and the contact portion extends from the extension portion toward the groove for electrical coupling to the plug-in portion. Based on the content disclosed in this patent, the entire memory slot relies on only one contact portion of the terminal for electrical coupling with the memory, which is unsuitable for large data and high-speed signal transmission. Utility Model Content

[0003] The technical solution to be solved by this utility model is to provide a card edge connector that can provide multiple electrical circuits to meet the needs of high-speed signal and large data transmission.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a card edge connector, comprising a longitudinally elongated insulating body, a card slot extending upward through the insulating body, and a plurality of terminal slots communicating with the card slot; the card slot allows an electronic card to be inserted, and the terminal slots contain conductive terminals that can be electrically connected to the electronic card; the conductive terminals include a tail extending from bottom to top, a retaining portion extending from the tail into the terminal slot, a contact head electrically contacting the electronic card, and a connecting portion connecting the retaining portion and the contact head; the connecting portion is bent toward the end of the contact head to form a bent portion, and the bent portion can be electrically connected to the end of the contact head.

[0005] Compared with the prior art, the conductive terminal of this utility model has an electrical connection between the end of the contact head and the connecting part, forming multiple electrical circuits, which can meet the transmission of large data. In addition, the connecting part is provided with a bend that bends towards the end of the contact head. This setting can greatly shorten the path length of the electrical circuit and, to a certain extent, improve the transmission rate of electrical signals. Attached Figure Description

[0006] Figure 1 This is a perspective view of the card edge connector into which an electronic card is inserted in this utility model.

[0007] Figure 2 is Figure 1 the exploded view in three dimensions.

[0008] Figure 3 is Figure 1 the three-dimensional view of the conductive terminal in the edge connector.

[0009] Figure 4 is Figure 3 the side view of the conductive terminal.

[0010] Figure 5 is Figure 1 the cross-sectional view of the entire edge connector assembly along line A-A in

[0011] Explanation of component symbols:

[0012] Edge connector 100 Contact head 23

[0013] Insulating body 10 End 231 <00系列="0000039">

[0014] Card slot 11 First contact part 232

[0015] Bottom surface 111 Top end 233

[0016] Terminal slot 12 Connection part 24

[0017] Support platform 121 Bending part 241

[0018] Relief slot 122 Second contact part 242

[0019] Electronic card 200 Circuit board 300 <00型="0000052">Gold finger 201 Conductive sheet 301

[0021] Tail part 21 Vertical distance L1

[0022] Retention part 22 Vertical distance L2. Specific implementation mode

[0023] Refer to Figure 1-5As shown, this utility model is a card edge connector 100, including a longitudinally elongated insulating body 10, a card slot 11 extending upward through the insulating body 10, and a plurality of terminal slots 12 communicating with the card slot 11; the card slot 11 can accommodate an electronic card 200, and the terminal slots 12 contain conductive terminals 20 that can be electrically connected to the electronic card 200; the conductive terminal 20 includes a tail 21 extending from bottom to top, a retaining portion 22 extending from the tail 21 into the terminal slot 12, a contact head 23 that is electrically in contact with the electronic card 20, and a connecting portion 24 connecting the retaining portion 22 and the contact head 23; the connecting portion 24 is bent toward the end of the contact head 23 to form a bent portion 241, and the bent portion 241 can be electrically connected to the end 231 of the contact head 23, which can form a shorter electrical circuit to ensure high-speed transmission of large data and signals.

[0024] In this embodiment, the card edge connector 100 is mounted on a circuit board 300. (See reference...) Figure 2 and Figure 5 As shown, the electronic card 200 has several gold fingers 201, the circuit board 300 has several conductive plates 301, and the card edge connector 100 houses several conductive terminals 20. The contact heads 23 of the conductive terminals are electrically connected to the gold fingers 201, and the tails 21 of the conductive terminals 20 extend beyond the insulating body 10 of the card edge connector, and the tails 21 are electrically connected to the conductive plates 301. With this configuration, signal transmission can be achieved between the gold fingers 201 and the conductive plates 301 through the conductive terminals 20.

[0025] More specifically, participants Figure 5 As shown, the contact head 23 includes a first contact portion 232 that extends into the slot 11. The first contact portion 232 contacts the gold finger 201 to receive electrical signals and transmit them to the tail portion 21 of the conductive terminal 20. (See reference...) Figure 3As shown, the contact head 23 extends upward and then downward from the connecting portion 24, with its end 231 electrically connected to the bending portion 241. In this embodiment, the bending portion 241 contacts a second contact portion 242 that contacts the end 231 of the contact head 23. In other embodiments, the end of the contact head 23 may be integrally formed with the bending portion. Furthermore, the first contact portion 232 of the contact head 23 is located between the top end 233 and the end 231 of the contact head 23. The electrical signal is input from the first contact portion 232 and sequentially passes through the end 231 of the contact head 23 (more precisely: the second contact portion 242), the bending portion 241, and the retaining portion 22, finally reaching the tail portion 21, thus forming a shorter circuit. This is mainly because the bending portion 241 shortens the distance between the first contact portion 232 and the second contact portion 242, greatly improving the signal transmission rate. The vertical distance L1 between the first contact portion 232 and the second contact portion 242 ranges from 0.5 to 0.6 mm. Optionally, the electrical signal is input from the first contact portion 232 and passes sequentially through the top end 233 of the contact head 23, the bending portion 241, and the retaining portion 22, finally reaching the tail portion 21, thereby forming a relatively long circuit. The vertical distance L2 between the top end 233 of the contact head 23 and the second contact portion 242 ranges from 1.0 to 1.1 mm.

[0026] The conductive terminals 20 are fixed to both sides of the slot 11, and the first contact portions 232 of the two rows of conductive terminals 20 are opposite to each other. (See reference...) Figure 5 As shown, viewed longitudinally, the bottom surface 111 of the card slot 11 is located between the terminal holding portions 22 on opposite sides of the card slot. The holding portions 22 of the conductive terminal 20 are held longitudinally on both sides of the terminal slot 12. A support platform 121 extends from the terminal slot 12 toward the card slot 11, supporting the holding portions 22. A clearance groove 122 is also provided in the terminal slot 12, which is formed by receding away from the contact head 23. When the electronic card 200 is inserted into the card slot 11, the clearance groove 122 provides space for the contact head 23 to move. (See reference...) Figure 4 As shown, the end 231 of the contact head 23 is entirely located within the bent portion. More specifically, the conductive terminal 20 is formed by bending a metal sheet that gradually tapers upwards.

[0027] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A card edge connector, comprising a longitudinally elongated insulating body, a card slot extending upward through the insulating body, and a plurality of terminal slots communicating with the card slot; the card slot is for inserting an electronic card, and the terminal slots house conductive terminals electrically connected to the electronic card; the conductive terminals include a tail extending from bottom to top, a retaining portion extending from the tail into the terminal slot, a contact head electrically contacting the electronic card, and a connecting portion connecting the retaining portion and the contact head; characterized in that: The connecting portion is bent toward the end of the contact head to form a bent portion, which can be electrically connected to the end of the contact head.

2. The card edge connector as described in claim 1, characterized in that: The retaining part is fixed to the terminal slot on both sides in the longitudinal direction. The terminal slot has a support platform extending in the direction of the slot, and the support platform supports the retaining part.

3. The card edge connector as described in claim 1 or 2, characterized in that: The terminal slot is provided with a relief groove, which is formed by retracting away from the contact head.

4. The card edge connector as described in claim 1, characterized in that: The contact head includes a first contact portion that extends into the card slot. The electronic card is provided with a plurality of gold fingers. The first contact portion contacts the gold fingers to receive electrical signals and transmit them to the tail of the conductive terminal.

5. The card edge connector as described in claim 4, characterized in that: The contact head is formed by extending upward and then downward from the connecting portion. The first contact portion is located between the top and bottom of the contact head. The electrical signal is input from the first contact portion and passes sequentially through the bottom of the contact head, the bending portion, and the retaining portion, finally reaching the tail portion, thereby forming a shorter circuit.

6. The card edge connector as described in claim 5, characterized in that: The bending portion is provided with a second contact portion that contacts the end of the contact head, and the vertical distance between the first contact portion and the second contact portion is in the range of 0.5~0.6mm.

7. The card edge connector as described in claim 6, characterized in that: The electrical signal is input from the first contact portion and passes sequentially through the top of the contact head, the bending portion, and the holding portion, finally reaching the tail portion, thereby forming a relatively long circuit.

8. The card edge connector as described in claim 7, characterized in that: The vertical distance between the top of the contact head and the second contact portion is in the range of 1.0~1.1mm.

9. The card edge connector as described in claim 1, characterized in that: Viewed in the direction of the bend, the end of the contact head is entirely located within the bend.

10. The card edge connector as described in claim 1, characterized in that: Viewed longitudinally, the bottom surface of the card slot is located between the retaining portions on opposite sides of the card slot.

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