TWI392143B - Electrical card connector - Google Patents

Description

Electronic card connector

The present invention relates to an electronic card connector, and more particularly to an electronic card connector having a switch terminal for detecting whether an electronic card is correctly inserted.

The SIM (Subscriber Identity Module) card connector is widely used in many electronic devices such as mobile phones, and is usually provided with a set of conductive terminals for electrical connection with the SIM card. At the same time, in order to detect whether the electronic card is correctly inserted, the SIM card connector usually has a pair of switch terminals.

A SIM card connector disclosed in the Chinese Utility Model Patent No. 200720155506.5, which is provided with a pair of switch terminals held on the insulative housing, the pair of switch terminals including a first switch terminal and a second switch terminal. The first switch terminal includes a resilient arm that can be in electrical contact with the second switch terminal; the second switch terminal is integrally formed on the insulative housing, and includes a base that can resist the elastic arm, and the elastic arm of the first switch terminal And the base of the second switch terminal is received in the same receiving slot provided by the insulative housing. The switch terminal is in a closed state when the electronic card is not inserted. At this time, the base portion is in a suspended state and is subjected to the upward force of the elastic arm upward. In the long term, the base portion of the floating body is bent upward and deformed, thereby affecting the first and second switch terminals. The electrical contact between them may affect the detection effect or cause misdetection. In addition, since the second switch terminal is integrally formed on the insulating body, the second switch terminal that has been damaged and deformed cannot be replaced, which brings inconvenience to the maintenance. .

Therefore, it is indeed necessary to improve the previous electronic card connector to overcome the deficiencies of the prior art.

It is an object of the present invention to provide an electronic card connector having a switch terminal that is capable of avoiding deformation due to long-term stress.

Another object of the present invention is to provide an electronic card connector capable of determining whether or not an electronic card is correctly inserted.

In order to achieve the above object, the present invention adopts the following technical solution: an electronic card connector includes: an insulative housing, a plurality of conductive terminals received in the insulative housing, and a pair of switch terminals, wherein the pair of switch terminals includes a fixed terminal and a movable terminal The movable terminal can be pressed against the fixed terminal, the fixed terminal includes a crimping portion and an arm portion abutting on the insulating body, and the crimping portion can electrically abut the movable terminal, The force generated by the crimping portion being abutted by the movable terminal cancels out the force generated by the abutment of the arm portion by the insulating body.

Another technical solution of the present invention is an electronic card connector for accommodating an electronic card, comprising: an insulating body; a plurality of conductive terminals and a pair of switch terminals, wherein the conductive terminals and the switch terminals are fixed on the insulating body; The body is assembled on the insulative housing, and the two form an electronic card receiving space; wherein the switch terminal includes a contact portion, and the contact portion is located at one of the innermost ends of the electronic card receiving space, the electronic One side of one end of the card is provided with a notch. When the electronic card is correctly inserted, the contact portion is pressed by the electronic card to exit the electronic card receiving space, and when the electronic card is inverted, the contact portion is located at the electronic device. The inside of the card is located in the electronic card accommodating space.

Compared with the prior art, the electronic card connector of the present invention has the following effects: the arm portion of the crimping portion is pressed by the insulating body, which can offset the pressure The connecting portion receives the bending force to prevent the crimping portion from being deformed by bending for a long period of time; and the electronic card connector of the present invention can also determine whether the electronic card is correctly inserted.

Hereinafter, a specific embodiment of the electronic card connector 100 of the present invention will be described in detail in conjunction with the first to seventh figures. The electronic card connector 100 of the present invention (the SIM card connector is taken as an example, but is not limited to the electronic card connector) includes an insulative housing 1 and a shielding shell 2 shielded on the insulative housing 1 1 conductive terminal 3 and a pair of switch terminals 4. The electronic card 6 has a substantially elongated configuration, and a front end side thereof is a triangular notch 61.

The insulative housing 1 includes a plurality of terminal slots 11 for receiving the conductive terminals 3 and a pair of receiving slots 15 at the rear end of the terminal slots 11. The insulative housing 1 is further provided with a stopping portion 12 on one side of one end of the terminal slot 11 , and a holding slot 13 is disposed at the bottom of the terminal slot 11 . The receiving slot 15 is configured to receive the pair of switch terminals 4, and includes a first receiving slot 151 and a second receiving slot 152. The first receiving slot 151 and the second receiving slot 152 communicate with each other. A through hole 153 is defined in the upper end of the second receiving groove 152. The upper end of the receiving slot 15 is provided with a resisting portion 16 for resisting the excessive insertion of the electronic card 6. The two sides of the insulating body 1 are further provided with a plurality of holding blocks 17 and a plurality of holding grooves 18 between the holding blocks 17, and the holding grooves 18 extend in the vertical direction and extend to the upper surface of the insulating body 1.

Referring to the first to fifth figures, the shielding shell 2 is fixed on the insulative housing 1 and the two together form an electronic card receiving space (not labeled). The utility model comprises a horizontal wall 21, a side wall 22 which is bent downward from both sides of the horizontal wall 21 and a welding leg 23 which is bent from the bottom of the side wall 22. The side wall 22 is provided with a plurality of retaining openings 221 and a plugging portion 222. The retaining port 221 cooperates with the retaining block 17 of the insulative housing 1 to fasten the shielding shell 2 to the insulative housing 1; The portion 222 is received in the holding groove 18 of the insulative housing 1 for guiding the shielding housing 2 to be installed in the vertical direction. The soldering leg 23 can be soldered to a printed circuit board (not shown), and the soldering leg 23 is bent inwardly so that it occupies a small area of the printed circuit board.

Referring to the first to fourth figures, the conductive terminal 3 is retained in the terminal slot 11 of the insulative housing 1 and includes a retaining portion 31, a connecting portion 32, a contact portion 33, a solder portion 34, and a pre-pressing portion 35. . The holding portion 31 is fixed in the holding groove 13 of the insulative housing 1; the connecting portion 32 has a U-shaped structure, and is connected to the holding portion 31 and the contact portion 33; the contact portion 33 extends into the electronic card receiving space. It can be electrically contacted with a conductive portion (not shown) of the electronic card 6; the pre-pressing portion 35 is formed by an oblique extension of the free end of the contact portion 33, and is pressed by the stopper portion 12 of the insulating body 1 so that The connecting portion 32 is in a pre-compressed state. When the electronic card 6 is inserted into the electronic card receiving space, the contact portion 33 abuts against the electronic card 6 and drives the connecting portion 32 to further compress, so that the contact portion 33 and the electronic card 6 are realized. Stable contact.

Referring to the first to seventh figures, the pair of switch terminals 4 includes a fixed terminal 41 and a movable terminal 42. The fixed terminal 41 is retained in the first receiving slot 151, and the movable terminal The 42 is retained in the second receiving groove 152. The fixing terminal 41 includes a second holding portion 411 , a second welding portion 412 extending from one end of the second holding portion 411 , a second connecting portion 413 bent upward from the other end of the second holding portion 411 , and a second connection The crimping portion 414 and the arm portion 415 are bent and extended horizontally at the upper end of the portion 413. The crimping portion 414 extends horizontally into the second receiving groove 152 and abuts against the movable terminal 42. The arm portion 415 Located at the free end of the crimping portion 414, it has an arched structure and abuts against the insulative housing 1. The movable terminal 42 includes a third holding portion 421 , a third welded portion 422 extending from one end of the third holding portion 421 , a U-shaped elastic arm 423 extending from the other end of the third holding portion 421 , and one end of the self-elastic arm 423 a third contact portion 424 that protrudes upward; wherein the elastic arm 423 has a certain elasticity, and the upper end thereof abuts against the crimping portion 414 of the holding terminal 41 before the electronic card 6 is inserted into the electronic card receiving space, thereby having a certain The preloading effect, at this time, the crimping portion 414 of the fixed terminal 41 receives an upward force due to the elastic force of the elastic arm 423, and the arched arm portion 415 of the fixed terminal 41 is abutted by the insulating body 1 and is subjected to downward pressure. The force cancels the two forces so that the crimping portion 414 can be bent upward to affect the electrical contact between the fixed terminal 41 and the movable terminal 42, thereby ensuring the detection effect or preventing false detection. The third contact portion 424 protrudes into the electronic card receiving space through the through hole 153 of the insulative housing 1 and is located on the front end side of the abutting portion 16 of the insulative housing 1 when the electronic card 6 is correctly inserted into the electronic card receiving space. At the time (as shown in the sixth figure), the electronic card 6 will press down the third contact portion 424, thereby electrically disconnecting the elastic arm 423 from the crimping portion 414, thereby indicating that the electronic card 6 is correctly inserted, and when the electronic When the card 6 is erroneously inserted (as shown in FIG. 7), the third contact portion 424 is located in the triangular notch 61 of the electronic card 6 without electrically disconnecting the elastic arm 423 from the crimping portion 414, thereby judging the electronic card. 6 is not inserted correctly.

The electronic card connector 100 of the present invention is provided with an arm portion 415 at one end of the fixed terminal 41 so as to abut against the insulative housing 1 to offset the crimping portion 414. The force is prevented from being bent and deformed due to the suspension and long-term stress.

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 a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above 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.

100‧‧‧electronic card connector

1‧‧‧Insulating body

11‧‧‧Terminal slot

12‧‧‧stop

13‧‧‧ holding slot

15‧‧‧ Containing trough

151‧‧‧First storage trough

152‧‧‧Second holding trough

153‧‧‧through hole

16‧‧‧Resistance Department

17‧‧‧holding block

18‧‧‧Solid slot

2‧‧‧shading shell

21‧‧‧ horizontal wall

22‧‧‧ side wall

221‧‧‧ retaining mouth

222‧‧‧ Sockets

3‧‧‧Electrical terminals

31‧‧‧ Holding Department

32‧‧‧Connecting Department

33‧‧‧Contacts

34‧‧‧Weld Department

35‧‧‧Pre-pressing department

4‧‧‧Switch terminals

41‧‧‧Fixed terminals

411‧‧‧Second Holding Department

412‧‧‧Second welding department

413‧‧‧Second connection

414‧‧‧ Crimp

415‧‧‧arms

42‧‧‧ movable terminal

421‧‧‧ Third Holding Department

422‧‧‧ Third Welding Department

423‧‧‧Flexible arm

424‧‧‧ Third contact

6‧‧‧Electronic card

61‧‧‧ gap

1 is a perspective view of an electronic card connector of the present invention; a second view is a perspective view of the electronic card connector of the present invention; FIG. 3 is an exploded perspective view of the electronic card connector of the present invention; The rear view of the electronic card connector; the fifth figure is a partial enlarged view of the switch terminal and the insulative housing of the electronic card connector of the present invention; the sixth figure is a top view of the electronic card being correctly inserted to disconnect the switch terminal of the present invention; The figure is a top view in which the electronic card is reversed so that the switch terminal of the present invention is not disconnected.

1‧‧‧Insulating body

2‧‧‧shading shell

413‧‧‧Second connection

414‧‧‧ Crimp

415‧‧‧arms

424‧‧‧ Third contact

Claims (18)

An electronic card connector includes: an insulative housing; a plurality of conductive terminals; and a pair of switch terminals, wherein the conductive terminals and the switch terminals are received on the insulative housing; wherein the pair of switch terminals comprise a fixed terminal and a movable terminal, The movable terminal can be pressed against the fixed terminal and can also be separated from the fixed terminal. The fixed terminal includes a crimping portion and an arm portion abutting on the insulating body, and the arm portion is located at a free end of the crimping portion. The arm portion is located on one side of the movable terminal in the width direction of the movable terminal and is located on one side of the movable terminal. The crimping portion can electrically abut against the movable terminal, and the force of the crimping portion being abutted by the movable terminal is The forces generated by the abutment of the arms by the insulating body cancel each other out. The electronic card connector of claim 1, wherein the fixed terminal comprises a holding portion fixed to the insulating body, a connecting portion extending from one end of the holding portion, and a welded portion formed at the opposite end, the pressing portion The joint is connected to the joint. The electronic card connector of claim 1 or 2, wherein the crimping portion extends in a horizontal direction. The electronic card connector of claim 3, wherein the arm portion of the crimping portion has an arch structure and abuts against the insulating body, and the crimping portion is in a suspended state. The electronic card connector of claim 1, wherein the one end of the insulative housing is provided with a first receiving slot and a second receiving slot, the fixed terminal is retained in the first receiving slot, and the movable terminal is fixed at the first Two storage slots, and The crimping portion of the fixed terminal extends into the second receiving groove. The electronic card connector of claim 1 or 5, wherein the movable terminal comprises a contact portion and a resilient arm, the resilient arm abuts the crimping portion of the fixed terminal, and the elastic arm is pre-treated Pressure. The electronic card connector of claim 6, wherein the electronic card can receive an electronic card, and the electronic card has a triangular notch at one end. When the electronic card is correctly inserted, the contact portion of the movable terminal is located under the electronic card. When the electronic card is not properly inserted, the contact portion of the movable terminal is located in the triangular notch. The electronic card connector of claim 7, wherein the switch terminal is in a closed state before the electronic card is inserted, and is pressed in an open state after the electronic card is inserted. The electronic card connector of claim 8, further comprising a shielding housing, wherein the shielding housing and the insulative housing form a receiving space, and the contact portion of the movable terminal extends into the receiving space. The electronic card connector of claim 9, wherein the shielding housing comprises a plurality of vertically extending plug portions, the insulative housing includes a retaining slot that cooperates with the plug portion, the holding The groove extends in a vertical direction to the upper surface of the insulative body. An electronic card connector for accommodating an electronic card, comprising: an insulating body; a plurality of conductive terminals and a pair of switch terminals, wherein the conductive terminals and the switch terminals are fixed on the insulating body; and the shielding shell is assembled on the insulating body And the two form an electronic card receiving space; the switch terminal includes a movable terminal and a fixed terminal, and the movable terminal and the movable terminal The fixed terminal is in a connected state when the electronic card is not inserted; the fixed terminal includes a crimping portion and an arm portion at a free end of the crimping portion, the crimping portion abuts on the movable terminal, and the arm portion Abutting against the insulative housing, the arm portion is located on one side of the movable terminal beyond the movable terminal in the width direction of the movable terminal; wherein the movable terminal includes a contact portion located in the innermost space of the electronic card receiving space One side of the end, one side of one end of the electronic card is provided with a notch, and when the electronic card is correctly inserted, the contact portion is pressed by the electronic card to exit the electronic card receiving space, and when the electronic card is When the plug is inserted, the contact portion is located in the gap of the electronic card and is located in the electronic card receiving space. The electronic card connector of claim 11, wherein the crimping portion extends in a horizontal direction. The electronic card connector of claim 12, wherein the insulative housing is provided with a first receiving slot and a second receiving slot, wherein the fixed terminal is retained in the first receiving slot, and the movable terminal is retained in the second The crimping portion of the fixing terminal extends into the second receiving groove. The electronic card connector of claim 13, wherein the first receiving slot and the second receiving slot are arranged side by side, and the first and second receiving slots communicate with each other. The electronic card connector of claim 11 or 14, wherein the insulating body is provided with a resisting portion for stopping the insertion of the electronic card at the upper ends of the first receiving slot and the second receiving slot. The electronic card connector of claim 15, wherein the insulative housing is provided with a plurality of terminal slots, and a stop portion is further disposed on each of the two ends of each of the terminal slots, the stop portion is pressed against the conductive portion. On the terminal. The electronic card connector of claim 16, wherein the cover The shield housing includes a plurality of vertically extending plug portions, and the insulative housing includes a retaining groove that mates with the plug portion, the retaining slot extending in a vertical direction to an upper surface of the insulative housing. The electronic card connector of claim 17, wherein the shielding housing is bent inward to form a plurality of soldering legs.