CN216214217U

CN216214217U - Card connector

Info

Publication number: CN216214217U
Application number: CN202122383449.9U
Authority: CN
Inventors: 成波; 陈高
Original assignee: Kunshan Huile Precision Industry Co ltd
Current assignee: Kunshan Huile Precision Industry Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a card connector, which comprises a metal shell, a terminal module, an ejection mechanism and a card holder, an accommodating space is arranged between the metal shell and the terminal module to form a plug interface, the ejection mechanism is positioned at the position of the plug interface, the ejection mechanism comprises a metal frame, a movable terminal, a fixed terminal and a crank, the movable terminal comprises an elastic arm and a matching part extending from the elastic arm, the elastic arm is overlapped with the fixed terminal, the crank is rotationally connected with the metal frame, the opposite two ends of the crank are provided with a top end and an operating end, the matching part is positioned on the moving track of the top end, the switch functions of the movable terminal and the fixed terminal are turned on by the rotation of the crank to realize the detection of whether the card holder is inserted to the bottom or not, so design, the structure of card connector is compacter, saves the space of card connector, strengthens card connector's intensity.

Description

Card connector

Technical Field

The present invention relates to a card connector, and more particularly, to a card connector having an ejection mechanism and a detection switch.

Background

The SIM card, also called subscriber identity card, smart card, must be attached to the GSM digital mobile phone for use. The SIM card can store the information of the digital mobile phone client, the encrypted key, the telephone directory of the user and other contents, can be used for the identification of the GSM network client and can encrypt the voice information when the client calls.

The prior art related to the present application can refer to a card connector disclosed in chinese patent CN212277531U, which includes a housing, a terminal module, a detection switch, an ejection mechanism, and a card holder; an accommodating space is arranged between the shell and the terminal module and forms a plug interface; the detection switch and the ejection mechanism are positioned at the position of the interface, so that a pull rod mechanism is saved, the length and the width direction are reduced, the occupied board space of the card connector is reduced, and the miniaturization of the terminal equipment is realized; the detection switch is arranged on the ejection mechanism and comprises a movable terminal, a fixed terminal and an insulating block, the movable terminal is provided with an elastic arm protruding forwards, the elastic arm and the fixed terminal are lapped together, and the fixed terminal is fixed on the insulating block; the ejection mechanism comprises a metal frame and a crank, the crank is pivoted to the metal frame, the crank and the movable terminal are arranged on the left and right sides, the card support is inserted into the accommodating space in a plugging mode, and the card support is provided with a switch triggering portion; when the card support is inserted inwards, the card support rotates towards the pushing crank, and then the switch triggering part of the card support pushes the elastic arm to disconnect the elastic terminal and the fixed terminal, so that the system can detect that the card support is inserted to the bottom.

Therefore, there is a need for a new card connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a card connector which has a compact structure and improved structural strength.

In order to achieve the purpose, the utility model adopts the following technical scheme: a card connector comprises a metal shell, a terminal module, an ejection mechanism and a card holder, wherein an accommodating space is formed between the metal shell and the terminal module to form a plug interface, the terminal module comprises a conductive terminal group and an insulator, the conductive terminal is fixed on the insulator, the conductive terminal group comprises a contact part and a welding part, the contact part is positioned in the accommodating space, the welding part extends out of the insulator, the ejection mechanism is positioned at the position of the plug interface, the card holder is inserted into the accommodating space through the plug interface, the ejection mechanism comprises a metal frame, a movable terminal, a fixed terminal and a crank, the movable terminal comprises an elastic arm and a matching part extending from the elastic arm, the elastic arm is overlapped with the fixed terminal together, the crank is rotatably connected with the metal frame, and the opposite two ends of the crank are provided with an ejection end and an operation end, the matching part is positioned on the moving track of the ejecting end.

In a further improvement, a groove is formed in the bottom surface of the card support, and the ejection end is at least partially positioned in the groove.

Further improvement, the card holds in the palm including conflict portion, the liftout end is equipped with the convex part that upwards buckles and extend, the convex part is located the removal orbit of conflict portion.

In a further improvement, the metal frame comprises an accommodating space and an opening positioned at the front end of the accommodating space, the movable terminal and the fixed terminal are assembled on one of the left side and the right side of the accommodating space, the crank is assembled on the other side of the left side and the right side of the accommodating space, and the ejection end protrudes out of the metal frame forwards through the opening.

In a further improvement, the metal frame includes a bottom wall, a top wall located above the bottom wall, a front end wall and a rear end wall connecting the bottom wall and the top wall, the crank is pivoted on the top wall, the opening is arranged on the front end wall, and the rear end wall is provided with a welding sheet.

In a further improvement, the movable terminal comprises a top plate, a front side plate bent and extended downwards from the front end of the top plate, a rear side plate bent and extended downwards from the rear end of the top plate, and elastic arms bent and extended inwards from one end of the rear side plate, wherein the elastic arms are positioned between the front side plate and the rear side plate, and the elastic arms are positioned between the top wall, the top plate, the front side plate and the rear side plate.

In a further improvement, the front side plate and the front end wall are fixed by laser welding or a buckle, and the rear side plate and the rear end wall are fixed by laser welding or a buckle.

In a further improvement, the ejection mechanism further comprises an insulating block, the fixed terminal is fixed on the insulating block and comprises a lap joint and a welding foot, and the elastic arm is contacted with the lap joint.

In a further improvement, the insulating block is provided with a recess in which the strap is located, the resilient arm passing through the recess.

Further improvement, the metal frame is provided with a notch for the welding foot to pass through, and the metal frame is prevented from propping the welding foot to influence the poor flatness.

The ejection mechanism of the card connector comprises a metal frame, a movable terminal, a fixed terminal and a crank, wherein the movable terminal comprises an elastic arm and a matching part extending from the elastic arm, the elastic arm is overlapped with the fixed terminal, the crank is rotationally connected with the metal frame, the two opposite ends of the crank are provided with an ejection end and an operation end, the matching part is positioned on the moving track of the ejection end, and the opening and closing functions of the movable terminal and the fixed terminal are opened by the rotation of the crank to realize the detection of whether the card holder is inserted to the bottom.

Drawings

Fig. 1 is a perspective view of the card connector of the present invention showing the card holder not inserted to the bottom.

Fig. 2 is a perspective view of the card connector of the present invention showing the card holder inserted to the bottom.

Fig. 3 is an exploded perspective view of the card connector of the present invention.

Fig. 4 is a perspective view showing an open state of the ejector mechanism of the card connector of the present invention.

Fig. 5 is a sectional view showing an open state of the ejector mechanism of the card connector of the present invention.

Fig. 6 is a perspective view showing a closed state of the ejector mechanism of the card connector of the present invention.

Fig. 7 is a sectional view showing a closed state of the ejector mechanism of the card connector of the present invention.

Fig. 8 and 9 are views of the metal frame of the ejection mechanism of the card connector of the present invention from different angles.

Fig. 10 to 11 are views from different angles of the movable terminal of the ejector mechanism of the card connector of the present invention.

Fig. 12 to 13 are views from different angles of the fixed terminal of the ejector mechanism of the card connector of the present invention.

Fig. 14 is a perspective view of a crank of the ejector mechanism of the card connector of the present invention.

Fig. 15 is a perspective view of a pin of the ejector mechanism of the card connector of the present invention.

Detailed Description

Referring to fig. 1 to 3, the present invention discloses a card connector 100 for mounting on a circuit board 200, which includes a metal shell 10, a terminal module 20, an ejection mechanism 30 and a card holder 40.

An accommodating space is formed between the metal shell 10 and the terminal module 20 and forms a socket, and the card holder 40 is inserted into the accommodating space through the socket. The metal shell 10 covers the outside of the terminal module 20, the terminal module 20 includes a conductive terminal group 21 and an insulator 22, and the conductive terminal group 21 is fixed to the insulator 22. The conductive terminal set 21 has a contact portion and a soldering portion, the contact portion is located in the receiving space for electrically contacting with the electronic card, and the soldering portion extends out of the insulator 22 for being soldered on the circuit board 200.

Referring to fig. 4 to 15, the ejection mechanism 30 is mounted on the circuit board 200 at the position of the socket, and includes a metal frame 31, a movable terminal 32, a fixed terminal 33, an insulating block 34, a crank 35 and a pin 36. The metal frame 31 includes an accommodating space 310, a bottom wall 311 enclosing the accommodating space 310, a top wall 312 above the bottom wall 311, side end walls 313, a front end wall 314, and a rear end wall 315. The bottom wall 311 is disposed horizontally and the rear end wall 315 vertically connects the bottom wall 311 and the top wall 312. The top wall 312 is provided with a through hole 3121 and a spring plate 3122, and the spring plate 3122 extends laterally into the accommodating space 310. The front end wall 314 is provided with a through opening 314 to facilitate the rearward assembly of the crank 35 in the receiving space 310. A plurality of soldering tabs 3150 extend from the upper edge of the rear end wall 315, a portion of the soldering tabs 3150 are used for soldering to the surface of the circuit board 200, and another portion of the soldering tabs 3150 are used for soldering to the mounting holes of the circuit board 200. In other embodiments, the weld tab is provided on the side end wall.

The movable terminal 32 is mounted on one of the left and right sides of the accommodating space 310 of the metal frame 31, and the crank 35 is mounted on the other of the left and right sides of the metal frame 31. The movable terminal 32 includes a top plate 321, a front side plate 324 bent and extended downward from the front end of the top plate 321, a rear side plate 325 bent and extended downward from the rear end of the top plate 321, and an elastic arm 322 bent and extended inward from one end of the rear side plate 325. The resilient arm 322 is positioned between the front side plate 324 and the rear side plate 325, and the resilient arm 322 has a mating portion 326 that extends beyond the front side plate 324 and the rear side plate 325. The top plate 321 and the bottom wall 311 of the metal frame 31 are spaced apart from each other in an up-down opposite manner, and the elastic arm 322 is located between the top plate 321 and the bottom wall 311. The front side plate 324 and the front end wall 314 of the metal holder 31 are fixed by laser welding or snap-fitting, and the rear side plate 325 and the rear end wall 315 of the metal holder 31 are fixed by laser welding or snap-fitting.

The fixed terminal 33 is insert-molded or assembled on the insulating block 34, the fixed terminal 33 includes a tab 331 and a soldering leg 332, the insulating block 33 is fixed in the accommodating space 310, the upper surface is provided with a recess 341, the tab 331 is located in the recess 341, the elastic arm 322 of the movable terminal 32 passes through the recess 341 and contacts with the tab 331, the soldering leg 332 extends backwards to form the rear end wall 315 of the insulating block 33 and the metal frame 31 for soldering on the circuit board 200, the rear end wall 315 is provided with a notch 3152 for the soldering leg 332 to pass through, and the rear end wall 315 is prevented from abutting against the soldering leg 332, which results in poor flatness.

The crank 35 includes an ejecting end 351 and an operating end 352 located at opposite ends of the crank 35, and a pivot portion 353 located between the ejecting end 351 and the operating end 352, the ejecting end 35 passes through the opening 314 of the metal frame 31 and extends forward out of the metal frame 31, the matching portion 326 of the movable terminal 32 is located on a moving track of the ejecting end 35, and when the ejecting end 35 moves backward by a predetermined distance, the matching portion 326 is pushed to move backward, and the ejecting end 351 is provided with a protruding portion 3510 extending in an upward bending manner for abutting against the card holder 40. The pivot portion 353 is provided with a pivot hole 354. The pin 36 is inserted downward into the through hole 3121 of the metal frame 31 and the pivot hole 354 of the crank 35, the crank 35 can rotate by using the pin 36 as a rotating shaft, and the pin 36 is riveted and fixed on the top wall 311 of the metal frame 31. When the operating end 352 moves excessively rearward, the operating end 352 can abut against the rear end wall 315 of the metal frame 31, preventing the crank 35 from rotating excessively.

The card holder 40 includes a card slot 41, a groove 42 and an abutting portion 43, the card slot 41 is used for placing an electronic card, the groove 42 is located on the bottom surface of the card holder 40, the protrusion 3510 of the ejecting end 351 is located in the groove 42, and the abutting portion 43 is shielded in front of the groove 42 and used for abutting against the protrusion 3150 of the ejecting end 351 to move.

In the process of inserting the card holder 40 inwardly, the abutting portion 43 of the card holder 40 pushes the protruding portion 3510 of the ejecting end 351 of the crank 35 to move backward, the crank 35 rotates, the operating end 352 moves forward, when the card holder 40 is inserted to the bottom, the ejecting end 351 pushes the matching portion 326 of the elastic arm 322 of the terminal 32 to move backward, the elastic arm 322 deforms backward, the bridging piece 331 of the elastic arm 322 and the fixed terminal 33 is disconnected, and the opening and closing functions of the starting terminal 32 and the fixed terminal 33 are contacted, so as to detect whether the card holder 40 is inserted in place, that is, the crank 35 also has the function of opening and closing, the card holder 40 does not need to be provided with the opening and closing part, the elastic sheet 3122 pushes the crank 35 to prevent the crank 35 from loosening, and the stability of the electrical connection between the electronic card and the conductive terminal group 21 is affected. When the card is withdrawn, the operating end 352 is pressed manually or by a tool, the operating end 352 moves backwards, the crank 35 rotates, the ejecting end 351 moves forwards, the card holder 40 is pushed outwards, and the elastic arm 322 gradually restores to the original shape until contacting with the lapping plate 331 of the fixed terminal 33.

According to the card connector 100, the ejection mechanism 30 is arranged at the position of the plug interface, the movable terminal 32, the fixed terminal 33 and the crank 35 are arranged together, a pull rod mechanism is omitted, the space occupied by the card connector 100 is saved, the opening and closing functions of the movable terminal 32 and the fixed terminal 33 are opened by the rotation of the crank 35, and whether the card support 40 is inserted to the bottom or not is detected, so that the structure of the card connector 100 is more compact, the space of the card connector 100 is saved, and the strength of the card connector 100 is enhanced.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims

1. The utility model provides a card connector, its includes metal casing, terminal module, ejection mechanism and card support, metal casing with accommodation space and formation interface between the terminal module, the terminal module includes conductive terminal group and insulator, conductive terminal is fixed in the insulator, conductive terminal group includes contact site and welding part, the contact site is in accommodation space, the welding part extends the insulator, ejection mechanism is located the interface position, the card support pass through the interface plug in accommodation space, its characterized in that: the ejection mechanism comprises a metal frame, a movable terminal, a fixed terminal and a crank, wherein the movable terminal comprises an elastic arm and a matching part extending from the elastic arm, the elastic arm is overlapped with the fixed terminal, the crank is rotatably connected with the metal frame, ejection ends and operation ends are arranged at two opposite ends of the crank, and the matching part is located on a moving track of the ejection ends.

2. The card connector according to claim 1, wherein: the bottom surface of the card support is provided with a groove, and the ejection end is at least partially positioned in the groove.

3. The card connector according to claim 1, wherein: the card holds in the palm including conflict portion, the ejection end is equipped with the convex part that upwards buckles and extend, the convex part is located the removal orbit of conflict portion.

4. The card connector according to claim 1, wherein: the metal frame comprises an accommodating space and an opening positioned at the front end of the accommodating space, the movable terminal and the fixed terminal are assembled on one of the left side and the right side of the accommodating space, the crank is assembled on the other of the left side and the right side of the accommodating space, and the ejection end protrudes out of the metal frame forwards through the opening.

5. The card connector according to claim 4, wherein: the metal frame comprises a bottom wall, a top wall and a front end wall, wherein the top wall is located above the bottom wall, the front end wall is connected with the bottom wall and a rear end wall of the top wall, the crank is pivoted on the top wall, the opening is formed in the front end wall, and the rear end wall is provided with a welding sheet.

6. The card connector according to claim 5, wherein: the movable terminal comprises a top plate, a front side plate, a rear side plate and elastic arms, wherein the front side plate is bent downwards from the front end of the top plate, the rear side plate is bent downwards from the rear end of the top plate, the elastic arms are bent inwards from one end of the rear side plate, the elastic arms are located between the front side plate and the rear side plate, and the elastic arms are located between the top wall, the top plate, the front side plate and the rear side plate.

7. The card connector according to claim 6, wherein: the front side plate and the front end wall are fixed through laser welding or a buckle, and the rear side plate and the rear end wall are fixed through laser welding or a buckle.

8. The card connector according to claim 1, wherein: the ejection mechanism further comprises an insulating block, the fixed terminal is fixed on the insulating block and comprises a lap joint sheet and a welding foot, and the elastic arm is in contact with the lap joint sheet.

9. The card connector according to claim 8, wherein: the insulating block is provided with a recess in which the strap is located, and the elastic arm passes through the recess.

10. The card connector according to claim 8, wherein: the metal frame is provided with a notch for the welding foot to pass through, and the metal frame is prevented from propping the welding foot to influence the poor flatness.