CN104600495A - Card connector - Google Patents

Abstract

The invention discloses a card connector, which comprises an insulating body, a plurality of conductive terminals, a card withdrawing mechanism, a card holder and a card holding elastic sheet. The insulating body comprises a bottom wall, a rear wall and two side walls, and an accommodating space is defined by the bottom wall, the rear wall and the two side walls. The insulating body is provided with a sliding space on one side wall, and a track curve groove is arranged in the sliding space. The rear wall of the insulating body is provided with a rotary arm groove. The plurality of conductive terminals are integrally formed on the bottom wall of the insulating body. The card withdrawing mechanism comprises a connecting rod arranged in the sliding space, a button connected to two ends of the connecting rod, a swing arm, an elastic piece abutting against the rear wall and the connecting rod, and a swing arm, wherein the swing arm can move along a track curve groove, and the swing arm is arranged in a swing arm groove and is movably connected with the swing arm. The card seat is inserted into the accommodating space. The clamping elastic sheet is fixedly arranged on the side wall of the insulating body, extends inwards into the accommodating space and can be abutted against the side edge of the clamping seat. The card connector of the invention finishes the taking and placing of the electronic card by using the linkage mode of the card withdrawing mechanism, thereby being convenient for users.

Description

card connector

technical field

The present invention relates to a connector, in particular to a card connector.

Background technique

With the development of information technology, communication products such as mobile phones are more and more widely used. The mobile phone needs to be equipped with a SIM (Subscriber Identity Module) card to realize its communication function, and the SIM card needs to be electrically connected to the internal circuit board of the mobile phone through a SIM card connector. A previous card connector includes an insulating body, a plurality of conductive terminals integrally formed on the insulating body, a card ejection mechanism installed in the insulating body, and a shielding shell covered outside the insulating body.

However, the previous card connector needs to use auxiliary tools to complete the process of returning the electronic card to pick and place the electronic card. Since people usually do not carry the auxiliary tool with them, it is very inconvenient for the user to take the card.

Contents of the invention

The object of the present invention is to provide a card connector for the disadvantages of the above-mentioned prior art, and the card connector does not need an auxiliary tool to take and place the electronic card.

To achieve the above object, the present invention provides a card connector, which includes an insulating body, several conductive terminals, a card ejection mechanism, a card holder and at least one card holding spring. The insulating body includes a bottom wall. The rear side edge and the two side edges of the bottom wall extend vertically upwards respectively to a rear wall and two side walls. The bottom wall, the rear wall and the two side walls form a receiving space. A sliding space is provided on the wall, a track curve groove is arranged in the sliding space, and a swing arm groove is arranged in the middle of the rear wall of the insulating body. The card ejecting mechanism includes a connecting rod, a swing arm pivotally connected to the rear end of the connecting rod, a swing arm dynamically connected with the swing arm, and an elastic member. The connecting rod and the swing arm are installed in the sliding space of the side wall of the insulating body , the rear end of the swing arm can slidably move along the track curve groove, the middle part of the swing arm is pivotally connected to the swing arm groove on the rear wall of the insulating body, so that one end of the swing arm can rotatably protrude into the storage space, and the rear of the swing arm A limit surface is provided on the surface to limit the other end of the swing arm, so that the other end of the swing arm cannot rotate and protrude into the sliding space, and the elastic member elastically resists between the rear wall of the insulating body and the connecting rod. Several conductive terminals are integrally formed on the bottom wall of the insulating body. The card holder is inserted into the accommodation space of the insulating body. The clamping elastic piece is arranged on the side wall of the insulating body, extends inward into the receiving space and can bounce against the side edge of the card seat.

As a further improvement, a partition protrudes from the rear wall of the insulating body into the sliding space of the side wall to divide the second half of the sliding space into a first space and a second space, and the track curve groove is arranged in the first space. In the space, the swing arm of the card ejection mechanism is installed in the first space, and the elastic member is installed in the second space; the connecting rod has a pushing part, a first space from the rear surface of the pushing part to the insulating body The linkage part formed by extending backward, the end of the linkage part is provided with an opening, the swing arm has a sliding block in the shape of a long strip, and the front and rear ends of the lower surface of the sliding block respectively protrude downwards with a protrusion The projection protruding downwards at the front end of the swing arm is rotatably engaged in the opening of the connecting rod, and the projection at the rear end is slidable and moves along the track curve groove in the first space.

As a further improvement, the rear surface of the push part of the connecting rod protrudes backward from the second space of the insulating body to form a protrusion, and the rear wall of the insulating body protrudes forward in the second space. The two ends of the elastic part of the card mechanism are respectively sheathed on the protruding post of the rear wall of the insulating body and the protruding part of the push part of the connecting rod.

As a further improvement, the swing arm protrudes toward the accommodation space of the insulating body inside the sliding block and extends backward to push the block, the swing arm has a horizontally extending rotating part, and the right end of the rotating part is bent downward And extend forward and curl backward to form a blocking part. The left front end of the rotating part is bent downward to form an arc-shaped abutting part. The push block of the swing arm pushes the blocking part of the swing arm to rotate the swing arm. The abutting top of the swing arm abuts against the deck to make the deck move.

As a further improvement, the arm groove on the rear wall of the insulator body has a protruding shaft protruding upward from the bottom wall of the groove, and a rotating hole is opened in the middle of the rotating part, and the protruding shaft protruding upward in the arm groove is engaged with the In the rotation hole of the swing arm, the push block of the swing arm pushes the blocking part of the swing arm to make the swing arm rotate around the protruding shaft.

As a further improvement, the card connector is further provided with a shielding shell that covers the outside of the insulating body. The shielding shell has a top plate and a pair of side plates extending downward from both side edges of the top plate. The shielding shell The top plate of the housing is provided with a tab that extends backwards and downwards; the upper surface of the sliding block of the swing arm protrudes upwards with a long strip of convex ribs, and the tabs of the top plate of the shielding housing elastically abut downward against the swing arm and protrude upwards. ribs.

As a further improvement, the front end of the connecting rod protrudes from the front surface of the insulating body and is fixedly connected with a button.

As a further improvement, each of the holding elastic pieces includes a second fixing portion, a second abutting portion extending from the second fixing portion, and a second extending portion extending from the second abutting portion, the The insulating body is respectively provided with a holding spring groove connected with the receiving space at the front part of the two side walls, and a pair of grooves are recessed inward on both sides of the card seat, and the holding springs correspond to the cards fixed on the two side walls of the insulating body. In the groove of the holding spring, the second fixed part and the second extending part of the holding spring are fixed in the groove of the holding spring, and the second abutting part protrudes inward from the inner surface of the side wall of the insulating body and is clamped on both sides of the card seat. in the groove on the side.

As a further improvement, the card base includes a tray and a front cover, the tray is provided with a card slot, and a pair of through holes are opened through the tray on the front side of the card slot, and the upper and lower ends of the rear surface of the front cover Respectively protrude backward to form a pair of retaining plates, the retaining plate corresponds to the through hole of the tray, and is provided with a fixing hole that runs through the retaining plate up and down, and the card seat also includes a pair of fixing blocks, and the front end of the tray is clamped on the front cover Between the two retaining plates, the fixing block passes through the fixing hole and the through hole to fix the tray on the front cover.

As a further improvement, the card connector also includes a switch terminal group, the switch terminal group includes a touch terminal and a detection terminal, the touch terminal has a third fixing part, a front end extending from the third fixing part The formed third connecting part, a third protruding part formed by arching from the end of the third connecting part, a third abutting part extending from the end of the third protruding part and a third abutting part formed from the lower end of the third fixing part The third welding part formed by extension, the detection terminal has a fourth connecting part, a fourth fixing part extending downward from one end of the fourth connecting part, a bending and extending forward from the other end of the fourth connecting part The formed fourth contact portion and a fourth welding portion extending from the lower end of the middle part of the fourth connecting portion, the insulating body is provided with a touch terminal groove on one side wall, and the touch terminal groove communicates with the receiving space, the The rear wall of the insulating body is connected to the touch terminal slot and is provided with a detection terminal slot. The touch terminals of the switch terminal group are fixed in the touch terminal slot on the side wall of the insulating body. The third fixed part of the touch terminal is connected to the third connection. part is fixed in the touch terminal groove, the third protrusion and the third abutting part protrude inward from the inner surface of the side wall of the insulating body, and the third welding part protrudes outward from the outer groove wall of the touch terminal groove. The detection terminal of the switch terminal group is fixed in the detection terminal groove on the rear wall of the insulating body, the fourth connection part, the fourth fixed part and the fourth contact part of the detection terminal are fixed in the detection terminal groove, and the fourth welding The part protrudes backward from the rear surface of the rear wall of the insulating body.

To sum up, the card connector of the present invention uses the card ejection mechanism to complete the pick-and-place of the electronic card, so that the user does not need additional tools to complete the process, which is more convenient for the user.

Description of drawings

FIG. 1 is a perspective view of an embodiment of the card connector of the present invention.

FIG. 2 is an exploded perspective view of the card connector shown in FIG. 1 .

3 to 6 are schematic diagrams of the actuation process of the card connector shown in FIG. 1 .

Each reference numeral in the figure is explained as follows.

Card Connectors 100 Insulation Body 10

Bottom wall 11 Conductive terminal slot 111

Rear wall 12 Partition 121

Post 122 Detecting terminal slot 123

Cantilever groove 124 Protruding shaft 125

Side wall 13 Holder shrapnel slot 131

Touch Terminal Slot 132 Sliding Space 133

First Space 1331 Second Space 1332

Trajectory Curved Groove 1333 Conductive Terminal 20

The first fixed part 21 The first elastic part 22

The first welding part 23 holding the shrapnel 30

The second fixed part 31 The second contact part 32

The second extension part 33 switch terminal group 40

Touch terminal 41 3rd fixed part 411

The third connecting part 512 The third protruding part 413

The third abutting part 414 The third welding part 415

Detection terminal 42 4th connection part 421

The fourth fixed part 422 The fourth contact part 423

The fourth welding part 424 card return mechanism 50

Connecting rod 51 Push part 511

Linkage part 512 Convex part 513

Hole 514 Button 52

Swing arm 53 sliding block 531

Push block 532 Convex rib 533

Bump 534 Cantilever 54

Swivel part 541 Swivel hole 542

Blocking part 543 543 Reaching the top 544

Elastic piece 55 Socket 60

Tray 61 Card Slot 611

Through hole 612 Groove 613

Front cover 62 Bezel 621

Fixing hole 622 Fixing block 63

Shielding Shell 70 70 Top Plate 71

Tab 711 Side Panel 72.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 and Fig. 2, the card connector 100 of the present invention is used to take and place the electronic card 200, including an insulating body 10, several conductive terminals 20, a pair of holding springs 30, a switch terminal group 40, a back The card mechanism 50 , a card holder 60 and a shielding case 70 .

Referring to Fig. 2, the insulating body 10 has a substantially rectangular plate-shaped bottom wall 11, the rear side edge and the two side edges of the bottom wall 11 vertically extend upwards respectively a rear wall 12 and two side walls 13, the bottom wall 11. The rear wall 12 and the two side walls 13 enclose a receiving space 14 that can be used to accommodate the card holder 60 . The insulating body 10 is provided with a plurality of conductive terminal grooves 111 penetrating through the upper and lower surfaces of the bottom wall 11 on the bottom wall 11 . The insulative body 10 defines a retaining clip slot 131 in front of the two sidewalls 13 , which communicates with the accommodating space 14 . The insulating body 10 is provided with a touch terminal slot 132 on the rear side of the retaining spring piece slot 131 on the side wall 13 , and the touch terminal slot 132 communicates with the receiving space 14 . The insulating body 10 is provided with a sliding space 133 for installing the card ejection mechanism 50 on the outer side of the retaining spring slot 131 of the other side wall 13 . The rear wall 12 of the insulating body 10 protrudes a partition 121 into the sliding space 133 of the side wall 13, and divides the rear half space of the sliding space 133 into a first space 1331 and a second space 1332. The first space 1331 There is a track curve groove 1333 inside. A post 122 protrudes forward from the rear wall 12 of the insulating body 10 in the second space 1332 . The rear wall 12 of the insulating body 10 is provided with a detection terminal slot 123 communicating with the touch terminal slot 132, and the middle part of the rear wall 12 of the insulating body 10 is provided with a swing arm slot 124, and the swing arm slot 124 protrudes upward from the bottom wall of the slot. A protruding shaft 125 is provided.

Each of the conductive terminals 20 includes a first fixing portion 21, a first elastic portion 22 punched from the middle of the first fixing portion 21, which is bent upwards and then extended downwards, and a first elastic portion 22 formed from the middle of the first fixing portion 21. The rear edge of the first fixing portion 21 first extends backwards, then bends downwards, and then bends the first welding portion 23 backwards.

Each of the clamping elastic pieces 30 includes a "U"-shaped second fixing portion 31, a second abutting portion 32 formed by extending inwardly and rearwardly from the inner edge of the second fixing portion 31, and extending outwardly and rearwardly. The end of the second contact portion 32 extends backward to form a second extension portion 33 .

The switch terminal set 40 includes a touch terminal 41 and a detection terminal 42 . The touch terminal 41 has a third fixing portion 411 extending vertically forward and backward, a third connecting portion 412 extending upward from the front end of the third fixing portion 411 and then bent backward, and a third connecting portion 412 extending from the third connecting portion 412 . A third protruding portion 413 formed by arching the end toward the receiving space 14 of the insulating body 10 , a third abutting portion 414 formed by extending backward from the end of the third protruding portion 413 , and a third abutting portion 414 formed from the lower end of the third fixing portion 411 The third welding portion 415 is formed by bending and extending outward. The detection terminal 42 has a fourth connecting portion 421 extending vertically left and right, a fourth fixing portion 422 extending downward from one end of the fourth connecting portion 421, and a fourth fixing portion 422 extending forward from the other end of the fourth connecting portion 421. A fourth contact portion 423 is formed by bending and extending, and a fourth welding portion 424 is formed by bending and extending backward from the middle lower end of the fourth connecting portion 421 .

The card ejection mechanism 50 includes a connecting rod 51, a button 52 fixedly connected to the front end of the connecting rod, a swing arm 53 pivotally connected to the rear end of the connecting rod 51, a swing arm 54 operatively connected to the swing arm 53, and a Elastic member 55.

The connecting rod 51 has a pushing part 511 in the shape of a "T" plate, a linkage part 512 formed by extending backward from the rear surface of the pushing part 511 in the first space 1331 of the insulator body 10, and a connecting part 512 formed from the pushing part 511. The rear surface protrudes backward from the second space 1332 of the insulating body 10 to form a protrusion 513 . An opening 514 is defined at the end of the linkage portion 512 .

The swing arm 53 has a sliding block 531 in the shape of a strip and a blocking block 532 protruding from the inside of the sliding block 531 toward the receiving space 14 of the insulating body 10 and extending backward. A long rib 533 protrudes upward from the upper surface of the sliding block 531 . A protrusion 534 protrudes downward from the front and rear ends of the lower surface of the sliding block 531 .

The swing arm 54 has a rotating portion 541 horizontally extending left and right, and a rotating hole 542 is defined in the middle of the rotating portion 541 . The right end of the rotating portion 541 is bent downwards, extends forward and curls backward to form a blocking portion 543 . The left front end of the rotating portion 541 is bent downward to form an arc-shaped abutting portion 544 .

The card holder 60 includes a tray 61 , a front cover 62 and a pair of fixing blocks 63 . The tray 61 is provided with a slot 611 . The tray 61 is provided with a pair of through holes 612 through the tray 61 at the front side of the slot 611 . Both sides of the tray 61 are recessed with a groove 613 . The front cover 62 is roughly in the shape of a long block, and the upper and lower ends of the rear surface respectively protrude backward to form a pair of retaining plates 621, and the retaining plates 621 of the front cover 62 correspond to the through holes 612 of the tray 61. The fixing hole 622 of the blocking plate 621 . The front end of the tray 61 of the deck 60 is clamped between the two retaining plates 621 of the front cover 62 , and the fixing block 63 passes through the fixing hole 622 and the through hole 612 to fix the tray 61 on the front cover 62 .

The shielding shell 70 has a top plate 71 and a pair of side plates 72 extending downward from two side edges of the top plate 71 . The top plate 71 of the shielding shell 70 has a tab 711 extending backward and downward.

2 and 3, when the card connector 100 of the present invention is assembled, several conductive terminals 20 are integrally formed on the bottom wall 11 of the insulating body 10, and the first fixing part 21 of the conductive terminal 20 is fixed on the bottom wall 11. An elastic portion 22 is placed in the conductive terminal groove 111 of the insulating body 10 and protrudes upwards from the upper surface of the bottom wall 11 , and the first welding portion 23 protrudes downwards from the lower surface of the bottom wall 11 . A pair of holding elastic pieces 30 are correspondingly fixed in the holding elastic piece grooves 131 of the two side walls 13 of the insulating body 10, and the second fixing portion 31 and the second extending portion 33 of the holding elastic pieces 30 are fixed in the holding elastic piece grooves 131, The second abutting portion 32 protrudes inward from the inner surface of the side wall 13 of the insulating housing 10 . The touch terminal 41 of the switch terminal group 40 is fixed in the touch terminal groove 132 of the side wall 13 of the insulating body 10 , and the third fixing part 411 and the third connecting part 412 of the touch terminal 41 are fixed in the touch terminal groove 132 , the third protruding portion 413 and the third abutting portion 414 protrude inward from the inner surface of the side wall 13 of the insulating body 10 , and the third welding portion 415 protrudes outward from the outer groove wall of the touch terminal groove 132 . The detection terminal 42 of the switch terminal group 40 is fixed in the detection terminal groove 123 of the rear wall 12 of the insulating body 10, and the fourth connection part 421, the fourth fixed part 422 and the fourth contact part 423 of the detection terminal 42 are fixed on the In the detection terminal slot 123 , the fourth welding portion 424 protrudes backward from the rear surface of the rear wall 12 of the insulating housing 10 .

The card ejecting mechanism 50 is correspondingly installed in the sliding space 133 of the side wall 13 and the arm slot 124 of the rear wall 12 . The connecting rod 51 of the card ejection mechanism 50 and the button 52 fixedly connected to the front end of the connecting rod 51 are installed in the sliding space 133 of the side wall 13 of the insulating body 10 and protrude forward outside the front surface of the insulating body 10, and are pivotally connected to the The swing arm 53 of the connecting rod 51 is installed in the first space 1331 of the sliding space 133, wherein the front end of the swing arm 53 protrudes downwards and the protrusion 534 is rotatably engaged in the opening 514 of the connecting rod 51, and the rear end of the swing arm 53 The protrusion 534 slidably moves along the trajectory curved groove 1333 in the first space 1331 . The elastic member 55 of the card ejection mechanism 50 is installed in the second space 1332, and the elastic member 55 elastically resists between the rear wall 12 of the insulating body 10 and the connecting rod 51, and its two ends are respectively sleeved on the rear wall of the insulating body 10. 12 protruding post 122 and the pushing part 511 of the connecting rod 51 of the card ejection mechanism 50 protrude outward from the protruding part 513 backward. The swing arm 54 of the card ejection mechanism 50 is installed in the swing arm groove 124 of the rear wall 12 of the insulating body 10. One end of the swing arm 54 is rotatably protruded into the receiving space 14, and the rear surface of the swing arm 54 is provided with a limiting surface. (not shown in the figure) to limit the other end of the swing arm 54 so that the other end of the swing arm 54 cannot rotate and protrude into the sliding space 14, and the upwardly protruding protruding shaft 125 in the swing arm groove 124 is engaged with the rotation hole of the swing arm 54 within 542.

The card holder 60 is inserted into the receiving space 14 of the insulating body 10 from front to back, and the second abutting portion 32 of the clamping elastic piece 30 is engaged in the grooves 613 on both sides of the tray 61 of the card holder 60 .

The shielding case 70 is covered on the outside of the insulating body 10, and the tab 711 of the top plate 71 of the shielding case 70 is elastically pressed downward against the upwardly protruding rib 533 of the swing arm 53 of the ejection mechanism 50, so as to prevent the swing arm 53 from The protrusion 534 breaks away from the track curve groove 1333 in the sliding space 133 of the insulating body 10 . So far, the card connector 100 of the present invention is assembled.

Please refer to Fig. 4 to Fig. 6, when the card connector 100 of the present invention is used, firstly, press the button 52 to drive the connecting rod 51 to move backward, the elastic member 55 compresses and accumulates elastic potential energy, and the connecting rod 51 drives the swing arm 53 to make the swing arm 53 The projection 534 protruding downward moves rightward and backward along the track curve groove 1333; then, the elastic member 55 releases the elastic potential energy to drive the connecting rod 51 and the button 52 fixed on the connecting rod 51 to move forward, and the connecting rod 51 drives The swing arm 53 makes the protrusion 534 protruding downward of the swing arm 53 move forward along the track curve groove 1333 until the connecting rod 51 abuts against the front groove wall of the sliding space 133 , at this moment, the button 52 pops out.

Secondly, pressing the button 52 drives the connecting rod 51 to move inwardly, and the elastic member 55 is compressed, and the connecting rod 51 drives the swing arm 53 so that the downward protruding bump 534 of the swing arm 53 moves backward along the track curved groove 1333, and the swing arm 53 The push block 532 pushes the stopper 543 of the swing arm 54 to make the swing arm 54 rotate counterclockwise around the protruding shaft 125, and the abutting top 544 of the swing arm 54 abuts against the card seat 60 to move the card seat 60 forward At the same time, the abutting portion 32 of the clamping shrapnel 30 breaks away from the groove 613 of the card seat 60, the card seat 60 pops up, and the elastic member 55 releases the elastic potential energy to drive the connecting rod 51 and the button 52 fixed on the connecting rod 51 to move forward. The rod 51 drives the swing arm 53 so that the downward protruding lug 534 of the swing arm 53 moves rightward and backward along the track curved groove 1333 to restore the original state.

Finally, the electronic card 200 is loaded into the card slot 611 of the tray 61 of the card holder 60, and the card holder 60 is pushed to move backward, and the card holder 60 abuts against the blocking part 543 of the swing arm 54 so that the swing arm 54 returns clockwise. , the abutting portion 32 of the clamping elastic piece 30 is engaged in the groove 613 of the clamping seat 60 .

To sum up, the card connector 100 of the present invention utilizes the card ejection mechanism 50 to complete the pick-and-place of the electronic card 200, so that the user does not need additional tools to complete the process, which is more convenient for the user.

Claims (10)

1. A card connector, comprising an insulating body, several conductive terminals, a card ejection mechanism, a deck and at least one holding spring, characterized in that: the insulating body includes a bottom wall, the rear side edge of the bottom wall The bottom wall, the rear wall and the two side walls form a receiving space, and the insulating body is provided with a sliding space on the side wall, and a trajectory curve is provided in the sliding space. The middle part of the rear wall of the insulating body is provided with a swing arm groove, and the card ejection mechanism includes a connecting rod, a swing arm pivotally connected to the rear end of the connecting rod, a swing arm and an elastic member connected to the swing arm, and the connecting rod The swing arm is installed in the sliding space of the side wall of the insulating body, the rear end of the swing arm can slide along the trajectory curve groove, and the middle part of the swing arm is pivotally connected to the swing arm groove of the rear wall of the insulating body, so that the swing arm One end can rotatably protrude into the storage space, and the rear surface of the arm is provided with a limiting surface to limit the other end of the arm, so that the other end of the arm cannot rotate and protrude into the sliding space, and the elastic member is elastically against the insulating body. Between the rear wall and the connecting rod, several conductive terminals are integrally formed on the bottom wall of the insulating body, the card holder is inserted into the receiving space of the insulating body, and the holding spring is arranged on the side wall of the insulating body, extending inward into the receiving space and It can be bounced against the side edge of the card holder. 2. The card connector according to claim 1, characterized in that: the rear wall of the insulating body protrudes into the sliding space of the side wall with a partition, which divides the second half of the sliding space into a first space and a second space. A second space, the track curve groove is set in the first space, the swing arm of the card ejection mechanism is installed in the first space, and the elastic member is installed in the second space; the connecting rod has a push part, a slave The rear surface of the push part extends backward from the first space of the insulating body to form an interlocking part. An opening is provided at the end of the interlocking part. The swing arm has a sliding block in the shape of a long strip. There are projections protruding downwards from the front and rear ends of the surface respectively. The projections protruding downwards at the front end of the swing arm are rotatably engaged in the opening of the connecting rod, and the projections at the rear end are slidable along the first space. The track curve groove movement. 3. The card connector according to claim 2, characterized in that: the rear surface of the push part of the connecting rod protrudes backward from the second space of the insulating body to form a protrusion, and the rear wall of the insulating body A protruding post protrudes forward in the second space, and the two ends of the elastic member of the card-removing mechanism are respectively sleeved outside the protruding post protruding from the rear wall of the insulating body and the protruding part of the push part of the connecting rod. 4. The card connector according to claim 2, wherein the swing arm protrudes from the inside of the sliding block toward the accommodation space of the insulating body and extends backward to push the stop block, and the swing arm has a horizontally extending Rotating part, the right end of the rotating part is bent downwards and stretched forward and curled backward to form a blocking part, the left front end of the rotating part is bent downwards to form an arc-shaped abutting part, and the push block of the swing arm pushes Pressing the blocking part of the swivel arm makes the swivel arm rotate, and the top of the swivel arm abuts against the deck to move the deck. 5. The card connector as claimed in claim 4, characterized in that: the arm groove on the rear wall of the insulating body protrudes upward from the bottom wall of the groove with a protruding shaft, and the middle part of the rotating part is provided with a rotating hole for rotating The upwardly protruding protruding shaft in the arm groove is engaged in the rotation hole of the swing arm, and the push block of the swing arm pushes the blocking part of the swing arm so that the swing arm rotates around the protruding shaft. 6. The card connector according to claim 2, characterized in that: a shielding case is further provided to cover the insulating housing, the shielding case has a top plate and extends downward from the two side edges of the top plate to form A pair of side plates, the top plate of the shielding shell is provided with a tab extending backward and downward; the upper surface of the sliding block of the swing arm protrudes upwards with a long rib, and the tab of the top plate of the shielding shell is elastic downward Butt against the rib protruding upwards of the swing arm. 7. The card connector as claimed in claim 1, wherein the front end of the connecting rod protrudes from the front surface of the insulating body, and is fixedly connected with a button. 8. The card connector according to claim 1, wherein each of the holding elastic pieces comprises a second fixing portion, a second abutting portion extending from the second fixing portion, and a second abutting portion extending from the second abutting portion. The second extension formed by the extension of the connecting part. The front part of the two side walls of the insulating body is respectively provided with a holding spring groove communicating with the receiving space. The shrapnel is correspondingly installed in the holding shrapnel grooves on the two side walls of the insulating body, the second fixing part and the second extending part of the holding shrapnel are fixed in the holding shrapnel groove, and the second abutting part protrudes inwards from the insulating body. The inner surface of the side wall of the main body is clamped in the grooves on both sides of the card seat. 9. The card connector as claimed in claim 8, wherein the card seat includes a tray and a front cover, the tray is provided with a card slot, and the tray is provided with a pair of card slots on the front side of the tray. Through holes, the upper and lower ends of the rear surface of the front cover protrude backward respectively to form a pair of retaining plates, the retaining plates correspond to the through holes of the tray, and are provided with fixing holes that penetrate up and down through the retaining plates, and the card holder also includes A pair of fixing blocks, the front end of the tray is clamped between the two retaining plates of the front cover, and the fixing blocks pass through the fixing holes and the through holes to fix the tray on the front cover. 10. The card connector according to claim 1, further comprising a switch terminal group, the switch terminal group includes a touch terminal and a detection terminal, the touch terminal has a third fixing portion, a A third connecting portion extending from the front end of the third fixing portion, a third protruding portion formed by arching from the end of the third connecting portion, and a third abutting portion extending from the end of the third protruding portion and a third welding portion extending from the lower end of the third fixing portion, the detection terminal has a fourth connecting portion, a fourth fixing portion extending downward from one end of the fourth connecting portion, and a fourth connecting portion The other end of the insulating body is bent forward to form a fourth contact portion and a fourth welding portion extending from the lower end of the middle part of the fourth connection portion. The insulating body is provided with a touch terminal groove on one side wall, and the touch terminal The groove communicates with the receiving space, the rear wall of the insulating body connects to the touch terminal groove and is provided with a detection terminal groove, the touch terminals of the switch terminal group are fixed in the touch terminal groove on the side wall of the insulating body, and the touch terminals The third fixing part and the third connecting part are fixed in the touch terminal groove, the third protruding part and the third abutting part protrude inward from the inner surface of the side wall of the insulating body, and the third welding part protrudes outward from the touch terminal. The detection terminal of the switch terminal group is fixed in the detection terminal groove on the rear wall of the insulating body, and the fourth connection part, the fourth fixed part and the fourth contact part of the detection terminal are fixed on the detection terminal. In the measuring terminal groove, the fourth welding part protrudes backward from the rear surface of the rear wall of the insulating body.