CN113161781B

CN113161781B - Card holder connector

Info

Publication number: CN113161781B
Application number: CN202110339046.6A
Authority: CN
Inventors: 资华古
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2023-02-10
Anticipated expiration: 2041-03-30
Also published as: CN113161781A

Abstract

A card bed connector, including the body assembly equipped with first terminal group, locate the second terminal group on the printed circuit board of the first terminal group, form in said first, second terminal group between space and detection switch of movement, the said body assembly includes several first conductive terminals, shields the body and shape the said first conductive terminal on the insulating body on the lower surface of the said shielding body, the said detection switch includes the static terminal and moves the terminal cooperating with said static terminal, the said move terminal includes the basal portion, from the said basal portion first end reverse bending formed tension portion, from the said tension portion slope extend elastic arm formed, from said elastic arm end towards said basal portion one side bending extension arm formed and from said extension arm end bending contact portion formed, still form on the said basal portion the welding part of the lower surface of the said shielding body; this application can effectively avoid because of the fillet plane degree problem that the installation problem caused.

Description

Card socket connector

Technical Field

The present application relates to the field of electrical connectors, and more particularly, to a card connector.

Background

A smart phone generally includes at least one SIM card, and a card connector is required to be configured to carry the SIM card; with the improvement of the requirements of users on the functions of mobile phones, most users need the functions of dual-card dual-standby, and meanwhile, in view of the shortage of the capacity of the built-in memory, the memory needs to be expanded, so that three cards, namely two SIM cards and one TF card, need to be carried, the existing SIM card is a Nano SIM card, and the size of the Nano SIM card is smaller than that of the TF card. The existing card seat is of a split structure for saving the thickness of a product, namely, at least part of terminal modules are directly welded on a printed circuit board without arranging an insulating body which is integrally formed with a shielding shell to form the terminal modules. When the detection switch is designed, the movable terminal of the detection switch is generally formed separately and then placed on the rear side of the card holder to be welded with the circuit board.

And stackable cassette like 202010570718.X patent discloses a cassette connector, it includes the detection switch, the detection switch includes moving terminal and quiet terminal, quiet terminal for with upper terminal integrative stamping forming to bend the protrusion downwards and form quiet terminal contact site, move terminal adopt the mode cartridge of cartridge in the insulator body of shield shell downside, should move the leg of terminal extend to with the leg of upper terminal is one row, when implementing, the moving terminal of equipment probably has the problem of precision and equipment deviation, leads to the leg uniformity to have the deviation to cause the idle joint scheduling problem.

Disclosure of Invention

Therefore, it is desirable to provide a card socket connector, in which the moving terminal of the detection switch does not need to be provided with a solder fillet soldered on the printed circuit board, thereby avoiding the occurrence of empty soldering.

In order to solve the technical problem, the application provides a cassette connector, including the casing subassembly that is equipped with first terminal group, locate second terminal group on the printed circuit board of first terminal group below, form in first, second terminal group between removal space and detection switch, the casing subassembly include a plurality of first conductive terminal, shield the casing and incite somebody to action first conductive terminal shaping in shield insulator on the casing lower surface, detection switch include with first conductive terminal integrative stamping forming and shaping in this internal quiet terminal and with quiet terminal complex moves the terminal, move the terminal include the basal portion, certainly the first end of basal portion is the reverse tension portion of bending formation, certainly the slant of tension portion is kept away from the elastic arm that the basal portion direction extends formation, certainly the elastic arm end court of bending extension formation in basal portion one side and certainly the terminal court of extension arm is kept away from the contact portion that the tension portion direction was bent formation, still be formed with the contact on the basal portion shield the welding part of casing lower surface, move the terminal pass through the welding part with the casing welded fastening, the elastic arm with the combination department is formed with extension arm and pushes away into in the removal space.

Preferably, the movable terminal is fixed to the insulating body first, and then the welding portion is welded and fixed to the bottom surface of the shielding shell.

Preferably, a supporting protrusion, an assembling groove formed on the periphery of the supporting protrusion, and at least one hole formed in the insulating body are formed in the rear outer side of the insulating body in a downward protruding manner, the bottom surface of the shielding shell is exposed in the hole and is welded and fixed to the soldering portion, and the base of the movable terminal is fixed in the assembling groove.

Preferably, the hole portion includes a first hole portion located in the middle of the supporting protrusion and a second hole portion opened on one side of the contact portion, the welding portion of the movable terminal includes a first welding portion formed by bending the base portion from the bottom side of the base portion toward the elastic arm and a second welding portion extending from the base portion into the second hole portion, and the first welding portion and the second welding portion are welded and fixed to the bottom surface of the shielding housing respectively.

Preferably, a notch is formed on the rear side of the shielding shell, a window located below the notch is formed at a position of the insulating body corresponding to the contact, and the window exposes the contact to the outside.

Preferably, the stationary terminal includes an embedded portion embedded in the insulating body, soldering terminals extending from the embedded portion out of the insulating body and arranged in a row with the soldering terminals of the first conductive terminal, and a contact piece bent downward from the embedded portion, the insulating body is located between the window and the second hole portion and protrudes downward to form a stationary terminal supporting platform, and the contact piece is embedded in the stationary terminal supporting platform and exposed outside at the rear side to contact with the contact portion.

Preferably, the movable terminal further includes a protection plate bent from the bottom side of one end of the base portion, which is far away from the tensioning portion, and extending to the lower side of the contact portion, the second welding portion is formed by upward bending and extending the protection plate, the rear side of the protection plate is also formed by upward bending a clamping pin, a clamping groove is formed in the position, corresponding to the clamping pin, of the insulation body, and the clamping pin is inserted into the clamping groove for fixation.

Preferably, the protection plate is provided with an opening at a position corresponding to the contact portion, and the connection condition between the contact portion and the contact piece can be observed through the opening.

Preferably, the front side of the contact part abuts against the rear side face of the contact piece and is limited at the rear side of the contact piece, and the contact part is separated from the contact piece after the pushing part receives backward pushing force.

Preferably, a convex hull is stamped and formed on one side of the base away from the elastic arm.

This application cassette connector is through moving terminal snap-on that will listen the switch and welding in shielding casing lower surface, need not to set up on the detection switch and weld the leg on printed circuit board, avoids because the assembled moves the terminal because the plane degree problem that the terminal was moved in precision problem influence when the equipment, and then causes the product bad.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective view of a card connector of the present application;

FIG. 2 is an exploded perspective view of the card connector of the present application;

FIG. 3 is a perspective view of the housing assembly, the card ejecting mechanism and the detecting switch of the card connector of the present application;

FIG. 4 is a perspective view of the housing assembly of the present invention;

fig. 5 is a perspective assembly view of the shielding housing, the first terminal set and the detecting switch of the card socket connector of the present application;

FIG. 6 is a perspective view of a movable terminal of the detection switch of the card socket connector of the present application;

fig. 7 is a perspective view of the card holder of the present application.

Description of the reference numerals

A card holder-10; a separator-11; a frame body-12; side frame-121; fool-proof groove-1211; tail frame-122; a first end frame-1221; a second end frame-1222; a clamping elastic piece-123; a cover plate-124; an escape step-126; a platform portion-127; a first card carrying space-S1; a second card-carrying space-S2; card withdrawing mechanism-20; a push rod-21; an actuator-22; a second terminal set-30; a second conductive terminal-31; an insulating block-32; a housing assembly-A; a shielding shell-40; a plate body portion-41; a side-42; an elastic member-43; a countersink portion-44; a tail plate-45; a cut-out portion-451; a first terminal set-50; a first conductive terminal-51; a first contact portion-511; a holding portion-512; a free end-513; a solder tail-514; an insulating body-52; a first insulating main board-521; an insulation tail-522; assembly area-53; a first hole portion-531; a support lug-532; an assembly groove-533; a window-534; a second bore portion-535; a stationary terminal support table-536; a clamping groove-537; a detection switch-60; a stationary terminal-61; a solder tail-611; an embedded part-612; contact pad-613; a movable terminal-62; a base-621; convex hull-6211; first weld-6212; a tension portion-622; flap-6221; -a support space-6222; a resilient arm-623; a push-top portion-624; an extension arm-625; a contact portion-626; a protective plate-627; -6272; second weld-6273; a clamping pin-6274; a printed circuit board 70.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments.

In the present application, the X direction shown in fig. 1 is the front in the front-rear direction (longitudinal direction), the Y direction is the left in the left-right direction (lateral direction), and the Z direction is the upper side in the up-down direction (vertical direction).

Referring to fig. 1 to 7, the card socket connector of the present application includes a housing assembly a having a first terminal set 50, at least one second terminal set 30 disposed opposite to the first terminal set 50 and soldered on a printed circuit board 70, a card holder 10 disposed between the first and

second terminal sets

50, 30, a card ejecting mechanism 20 assembled on the housing assembly a, and a detection switch 60.

Referring to fig. 7, a moving space for the card holder 10 to move is formed between the first terminal set 50 and the second terminal set 30. The card holder 10 is provided with a first card carrying space S1 on one side facing the first terminal group 50, and two second card carrying spaces S2 on one sides facing the two second terminal groups 30. The first terminal set 50 and the first card loading space S1 correspond to a memory card (TF card), and the second terminal set 30 and the second card loading space S2 correspond to two SIM cards, respectively. The first and second card carrying spaces S1 and S2 are separated from each other in the vertical direction by a partition plate 11.

Referring to fig. 2 to 5, the housing assembly a includes a shielding housing 40 and the first terminal set 50 integrally formed on a lower surface of the shielding housing 40. The shielding case 40 includes a plate body 41, a sinking plate 44 formed by bending the front end of the plate body 41 downward and extending horizontally, a tail plate 45 formed by bending the rear end of the plate body 41 downward and extending horizontally, two side portions 42 formed by bending the two lateral sides of the plate body 41 downward and extending, an elastic member 43 formed by tearing the plate body 41 downward inside one of the side portions 42, and an assembly space 49 formed between the elastic member 43 and the side portion 42. The end plate 45 is cut at the center thereof to form a cut 451 opened rearward. The upper surface of the tail plate 45 is lower than the upper surface of the sinking plate portion 44, and the upper surface of the plate body portion 41 is higher than the upper surface of the sinking plate portion 44.

The first terminal set 50 includes a plurality of first conductive terminals 51 and an insulating body 52 formed by molding the plurality of first conductive terminals 51 on the lower surfaces of the board portion 41 and the tail plate 45. The insulation body 52 includes a first insulation main board 521 molded and combined on the lower surface of the board portion 41, a second insulation main board 522 molded on the lower surface of the tail board 45 and filling a part of the cut portion 46, and an insulation tail board 524 formed by extending downward from the tail of the second insulation main board 522. An assembly area 53 is disposed at the rear end of the first insulating main board 521 and the front end of the second insulating main board 522. The assembly region 53 is used for assembling the detecting switch 60, and the assembly region 53 includes a supporting protrusion 532 protruding downward from the rear side outside the first insulating main board 521, a first hole 531 formed in the middle of the supporting protrusion 532, an assembly groove 533 extending around the periphery of the supporting protrusion 532, a window 534 formed on the first insulating main board 521 and the second insulating main board 522, a second hole 535 formed on the first insulating main board 521 in front of the window 534, a fixed terminal support 536 protruding downward from the first insulating main board 521 and located between the second hole 535 and the window 534, and a card slot 537 formed on the second insulating main board 522 in rear of the window 534. One side of the supporting protrusion 532 is an arc structure, and the first hole portion 531 and the second hole portion 535 vertically penetrate through the first insulating main board 521, so that the lower surface of the shielding shell 40 is exposed in the first and

second hole portions

531, 535. The support protrusion 532 is divided into left and right portions by the first hole portion 531. The window 534 passes through the insulating body 52 vertically, and is located below the cut-out portion 451 of the shield case 40, that is, above the window 534, it is not covered by the shield case 40.

The first conductive terminal 51 includes a holding portion 512 fixed in the first insulating main board 521 by molding, a first contact portion 511 formed by extending from the holding portion 512 obliquely downward and then extending obliquely upward, a free end 513 formed at the end of the first contact portion 511 and limited in the first insulating main board 521 and capable of moving forward and backward, and a solder tail 514 extending from the holding portion 512 along the insulating tail 524.

Each of the first conductive terminals 51 has a solder tail 514, the solder tails 514 are arranged in a row below the insulating tail 524, and the solder tails 514 extend from the cut-out 451 of the shielding shell 40.

The detecting switch 60 includes a fixed terminal 61 integrally formed with the first conductive terminal 51 by stamping and a movable terminal 62 assembled on the assembling area 53. The static terminal 61 and the first conductive terminal 51 are integrally formed by punching and connected to the same material belt. The stationary terminal 61 includes an embedded portion 612 embedded in the insulating main body 52, a fillet 611 extending from the embedded portion 612, and a contact piece 613 bent downward from the front end of the embedded portion 612 and molded on the stationary terminal support 536. The rear side surface of the contact piece 613 is exposed to the rear side of the stationary terminal support 536 as a contact surface. The embedded portion 612 and the holding portion 512 of the first conductive terminal 51 extend integrally, and the solder tails 611 and the solder tails 514 of the first conductive terminal 51 are in the same row and are soldered to the printed circuit board 70.

As shown in fig. 2 to fig. 6, the movable terminal 62 of the detecting switch 60 includes a base 621 clamped in the assembling groove 533, a tension portion 622 formed by bending one end of the base 621 in an opposite direction, an elastic arm 623 formed by extending the tension portion 622 obliquely away from the base 621, an extension arm 625 formed by bending the elastic arm 623 toward the base 621, a contact portion 626 formed by bending the end of the extension arm 625 toward the direction away from the tension portion 622, and a protection plate 627 vertically bent from the bottom side of the base 621 and extending to cover the lower side of the contact portion 626.

A first welding portion 6212 is formed at the upper side of the base 621 and is bent toward the elastic arm 623, and the first welding portion 6212 is received in the first hole portion 531 and is fixed to the lower surface of the shielding shell 40 by welding. A convex hull 6211 is stamped and formed on the side of the base 621 away from the elastic arm 623, and the convex hull 6211 helps the base 621 to be fixed in the assembling groove 533. An inward folding part 6221 is formed at the joint of the tensioning part 622 and the elastic arm 623, the tensioning part 622 and the base 621 enclose a supporting space 6222, the supporting convex part 532 is accommodated in the supporting space 6222, and the elastic arm 623 generates elastic force by relying on the tensioning part 622. The joint of the elastic arm 623 and the extension arm 625 is formed with a push top portion 624 protruding forward. The protection plate 627 is vertically bent from the bottom side of the free end of the base 621 and extends below the contact portion 626, and an opening is opened at a position corresponding to the contact portion 626 of the protection plate 627 for observing the contact portion 626 and the contact piece 613 of the stationary terminal 61. The protection plate 627 is bent and extended at a position corresponding to the second hole 535 to form a second welding portion 6273, and the second welding portion 6273 is in contact with the bottom surface of the shielding shell 40 through the second hole 535 and is welded and fixed. The rear end of the protection plate 627 extends to bend and extend to form a clamping pin 6274 clamped in the clamping groove 537 at a position corresponding to the clamping groove 537 so as to fix the movable terminal 62 on the insulating body 52 before the first and

second welding parts

6212, 6273 are welded. The protection board 627 can be used for protecting the contact portion 626 and preventing the protection portion 626 from being damaged during card insertion.

The two second terminal sets 30 respectively include a plurality of second conductive terminals 31 and an insulating block 32 for integrally holding the plurality of second conductive terminals 31. The second conductive terminal 31 includes a molding portion (not numbered) fixed in the insulating block 32, a second contact portion (not numbered) extending obliquely upward from the molding portion, and a solder tail (not numbered) extending from the molding portion to the insulating block 32.

The card ejecting mechanism 20 includes a push rod 21 assembled in the assembling space 49 of the shielding shell 40 and an actuator 22 riveted below the riveting hole 412 of the shielding shell 40 and the through hole 527 of the insulating body 52. The card ejecting mechanism is a conventional technique and will not be described herein.

As shown in fig. 2 and 7, the card holder 10 includes a partition 11, a frame 12 formed on the periphery of the partition 11, the first card loading space S1 formed on the upper side of the partition 11 and surrounded by the frame 12, and two second card loading spaces S2 formed on the lower side of the partition 11 and surrounded by the frame 12. The partition 11 is made of metal and is formed by stamping metal materials such as stainless steel. The frame 12 is made of plastic material formed on the outer periphery of the partition board 11, and the frame 12 includes a pair of side frames 121 formed on the lateral outer edges of the partition board 11, a tail frame 122 formed on the rear end edge of the partition board 11, and a front frame 124 formed on the front end edge of the partition board 11. The front frame 124 may be directly used as a cover plate for closing the opening of the mobile phone case, or a cover plate structure may be assembled to the outside of the front frame 124.

A card holding elastic member 123 located at the front end of the first card loading space S1 is formed extending backwards from the upper side of the front frame 124. The side frames 121 on the lateral outer sides of the two second card loading spaces S2 are assembled with card holders 13 projecting into the second card loading spaces S2.

The side frame 121 is formed with a fool-proof groove 1211 recessed downward from the outer edge of the surface of the first card loading space S1. The tail frame 122 includes a first tail frame 1221 located at the tail of the first card loading space S1 and a second tail frame 1222 located at the tail of the second card loading space S2. A platform 127 is formed between the first end frame 1221 and the second end frame 1222 on the first card loading space S1 side, and a card removal step 126 is formed at a rear end edge of the first end frame 1221. The actuating member 22 of the card ejecting mechanism 20 is at least partially located in the platform portion 127, and the card ejecting step 126 ejects the actuating member 22 to complete card ejection. The platform part 127 is at least partially overlapped with the second card loading space S2 at the rear side in the vertical direction.

This application cassette connector need not to be in through the mobile terminal 62 snap-on with detect switch 60 and weld in shielding casing 40 lower surface detect switch 60 is last to set up the leg that welds on printed circuit board 70, avoids because assembled mobile terminal 62 influences the plane degree problem of mobile terminal 62 because of the precision problem when the equipment, and then causes the product bad.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A card seat connector comprises a shell assembly provided with a first terminal set, a second terminal set arranged on a printed circuit board below the first terminal set, a moving space formed between the first terminal set and the second terminal set and a detection switch, wherein the shell assembly comprises a plurality of first conductive terminals, a shielding shell and an insulating body formed by the first conductive terminals on the lower surface of the shielding shell, the detection switch comprises a static terminal formed in the insulating body in an integrated stamping mode and a movable terminal matched with the static terminal, the movable terminal comprises a base part, a tensioning part formed by reversely bending the first end of the base part, an elastic arm formed by obliquely keeping away from the tensioning part in the direction of the base part, an extension arm formed by bending the tail end of the elastic arm towards one side of the base part and a contact part formed by bending the tail end of the extension arm towards the direction of the tensioning part, a welding part contacted with the lower surface of the shielding shell is further formed on the base part, the movable terminal is fixedly welded with the shielding shell through the welding part, and a top extending into the moving space is formed at the joint of the elastic arm.

2. The card socket connector of claim 1, wherein the movable terminal is fixed to the insulative housing before the soldering portion is soldered to the bottom surface of the shielding shell.

3. The card socket connector of claim 2, wherein the rear outer side of the insulative housing is formed with a support protrusion, an assembly groove formed on the outer periphery of the support protrusion, and at least one hole opened on the insulative housing, the bottom surface of the shielding shell is exposed in the hole and welded to the soldering portion, and the base of the movable terminal is fixed in the assembly groove.

4. The card socket connector of claim 3, wherein the hole includes a first hole located in the middle of the supporting protrusion and a second hole opened at one side of the contact, the soldering portion of the movable terminal includes a first soldering portion bent from the bottom side of the base portion toward the elastic arm and a second soldering portion extending from the base portion into the second hole, and the first soldering portion and the second soldering portion are respectively soldered to the bottom surface of the shielding shell.

5. The card holder connector according to claim 4, wherein a cut-out portion is formed on the rear side of the shield case, and a window is formed in the insulative housing at a position corresponding to the contact portion and below the cut-out portion, the window exposing the contact portion to the outside.

6. The card socket connector according to claim 5, wherein the stationary terminal includes an embedded portion embedded in the insulative body, solder tails extending from the embedded portion out of the insulative body and arranged in a row with the solder tails of the first conductive terminals, and contact pieces bent downward from the embedded portion, the insulative body has a stationary terminal support platform formed to protrude downward between the window and the second hole portion, and the contact pieces are embedded in the stationary terminal support platform and exposed to the outside at the rear side to contact the contact portions.

7. The card socket connector of claim 6, wherein the movable terminal further includes a protection plate bent from a bottom side of an end of the base portion away from the tightening portion and extending to a lower side of the contact portion, the second welding portion is formed by bending and extending the protection plate upward, a card pin is further formed by bending and extending a rear side of the protection plate upward, a card slot is formed at a position of the insulation body corresponding to the card pin, and the card pin is inserted into the card slot and fixed.

8. The card holder connector according to claim 7, wherein the protective plate has an opening at a position corresponding to the contact portion, and the connection between the contact portion and the contact piece can be observed through the opening.

9. The card socket connector of claim 8, wherein the front side of the contact portion abuts against the rear side of the contact piece and is limited to the rear side of the contact piece, and the contact portion is separated from the contact piece after the pushing portion receives a backward pushing force.

10. The card socket connector of claim 9, wherein the base portion is stamped with a convex hull on a side away from the spring arm.