CN215732284U - Stack type card seat - Google Patents

Abstract

A kind of stack type card bed, including the body assembly equipped with first terminal group, locate the second terminal group on the p-c board under the said first terminal group, form the movement space between said first, second terminal group, move in said movement space and card holder and assemble on the said body assembly of card withdrawing the mechanism of the card, the said body assembly includes several first conductive terminals, shields the body and shape said first conductive terminal on the insulating body that shields the lower surface of the body, shield the body and include the plate body portion, bend forward and extend the sinking plate portion formed and bend downward from the front end of the said plate body portion and bend downward from the horizontal both sides of the said plate body portion and extend the both sides portion formed; this application is favorable to practicing thrift the circuit board space.

Description

Stack type card seat

Technical Field

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

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 a 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; in order to save the occupied space of the printed circuit board, a stacked card seat structure scheme is provided, namely card accommodating spaces are respectively arranged at the upper side and the lower side of the card support so as to reduce the occupied space of the printed circuit board. The three-card solution will undoubtedly result in an increase in the length of the card holder.

The patent No. 202010570718 of the people's republic of China No. X discloses a stackable card holder and a card holder, wherein a position avoiding structure is designed on the card holder to accommodate an executing part of a card withdrawing mechanism by the characteristic that the length of two SIM card slots is greater than that of one TF card slot, so that the overall length of the card holder is reduced. However, the stacked card holder itself is a stacked double-layer card holder structure, and therefore, no matter how to improve the space by using the structural improvement, the card holder still occupies a thicker space than a single-layer card, and the card insertion end of the double-layer card holder needs to face the card insertion opening of the electronic device frame, which inevitably causes the frame to be thinned and reduces the strength of the frame. Meanwhile, the rear end of the clamping seat still has a space for further reducing the thickness of the clamping seat by utilizing the length difference of the upper and lower clamping grooves so as to optimize the inner space. Meanwhile, the detection switch of the existing product is realized by a movable terminal arranged at the tail part of the card holder, so that the assembly is difficult, and the thickness of the card holder product is occupied. The conductive terminal and the shell are integrally formed by injection molding, so that the conductive terminal is difficult to fix, and the conductive terminal is fixed by only the material belts on the front side and the rear side and is easy to shake and shift.

SUMMERY OF THE UTILITY MODEL

In view of this, it is desirable to provide a stacked card socket, in which a portion of the front end of the shielding shell that does not need to be fixed with the terminal is downwardly settled to form a sinking plate portion, so that a certain space is left above the sinking plate portion, which is beneficial to the design of the circuit board.

In order to solve the above technical problems, the present application provides a stacked card socket, comprising a housing assembly having a first terminal set, a second terminal set disposed on a printed circuit board below the first terminal set, a moving space formed between the first and second terminal sets, a card holder moving in the moving space and being limited by the housing assembly, and a card withdrawing mechanism assembled on the housing assembly, wherein the housing assembly comprises a plurality of first conductive terminals, a shielding housing, and an insulating body molding the first conductive terminals on a lower surface of the shielding housing, the shielding housing comprises a plate portion, a sinking plate portion bent downward from a front end of the plate portion and then bent forward and extended, and two side portions bent downward from two lateral sides of the plate portion, the first conductive terminals comprise a first contact portion extending into the moving space and a solder pin extending rearward from the first contact portion, the insulating body comprises a first insulating main board which fixes the first contact part below the board body part, and the lower surface of the first insulating main board is flush with the lower surface of the sinking board part.

Preferably, the upper surface of sinking the board portion is less than the upper surface of board somatic part, it includes the horizontally sinks the board main part to sink the board portion, from sink the horizontal both sides of board main part bend downwards and extend back again to the horizontal outside bend extend form prevent slow-witted step and from prevent slow-witted step horizontal outside bend downwards extend form sink the board erect wall, the bottom that sinks the board erect wall welds on printed circuit board as the leg.

Preferably, the bottom end of the vertical wall of the sinking plate is bent inwards to form a protective sheet, the upper side and the lower side of the card holder are respectively provided with a first card carrying space facing the first terminal group and two second card carrying spaces facing the second terminal group, the card holder further comprises a partition plate separating the first card carrying space from the second card carrying space and a frame body formed on the periphery of the partition plate, the frame body comprises two side frames, a front frame and a tail frame, the outer edge of each side frame is provided with a fool-proof groove matched with the fool-proof step, and the protective sheet supports the bottom of the side frame.

Preferably, the shielding shell further comprises a bending wall formed by bending and extending the rear end of the board body downwards and a tail board formed by horizontally bending and extending the bottom of the bending wall backwards, the insulating body further comprises a thickened portion covering the board body at a position close to the bending wall, the first insulating main board is connected with the second insulating main board through the thickened portion, and the lower surface of the thickened portion is flush with the lower surface of the second insulating main board.

Preferably, each first conductive terminal comprises a connecting strip which is led out from the first contact part and extends backwards to be connected with the soldering lug, and the connecting strip extends out of the tail plate along the first insulating main plate, the thickened part and the second insulating main plate.

Preferably, the tail plate comprises a horizontal tail plate main body and a tail wall formed by downwards bending and extending the rear side and the two transverse sides of the tail plate main body, the tail wall is welded on the printed circuit board as a welding foot, the insulation body further comprises an insulation tail plate formed by downwards extending the tail wall, and the connecting strip is bent downwards in the insulation tail plate and then bent backwards to form a welding foot positioned on the lower side of the tail plate.

Preferably, a first card loading space facing the first terminal group and two second card loading spaces facing the second terminal group are respectively arranged on the upper side and the lower side of the card holder, the card holder further comprises a partition plate separating the first card loading space from the second card loading space and a frame body formed on the periphery of the partition plate, the frame body comprises two side frames, a front frame and a tail frame, the tail frame comprises a first tail frame located behind the first card loading space and a second tail frame located behind the second card loading space, the second tail frame is located further behind the first tail frame and is not overlapped with the first tail frame in the vertical direction, so that a platform part is formed on the rear side of the first tail frame, and at least part of the platform part is overlapped with the second card loading spaces in the vertical direction.

Preferably, the card holds in the palm and inserts remove in the space after, the platform portion corresponds inserts the second insulation mainboard downside, first tail frame then is spacing in thickening portion front side.

Preferably, the card withdrawing mechanism including assemble in the push rod that shields the horizontal one side of casing and with the push rod cooperation and riveting in the executive component of plate body portion rear side, the executive component including rotate riveting in the axial region of plate body portion horizontal rear side, certainly the prying portion and the ejection of compact portion that the axial region transversely extended and formed, insulator's thickening portion with the second insulation mainboard is in corresponding the executive component position department is formed with the portion of dodging that holds the executive component.

Preferably, a concave riveting hole is formed in the rear side of the plate body, a through hole is formed in the insulating body corresponding to the riveting hole, the riveting hole is concave to the through hole or downward exceeds the through hole, the executing piece is directly in contact riveting with the riveting hole, the executing piece is located between the avoiding portion and the platform portion of the clamping support and rotates, the executing piece pushes the first tail frame of the clamping support forward to enable the clamping support to exit when rotating, and the connecting strip of the first conductive terminal is drawn close to one lateral side to avoid the avoiding portion when extending to the rear end side of the plate body.

The utility model provides a heap cassette shield the casing front side to bend down and form the horizontal plane and be less than the heavy board portion of board somatic part, simultaneously, insulator no longer covers heavy board portion lower surface makes the lower surface of heavy board with insulator's the lower surface parallel and level of the first insulation mainboard guarantees that the card holds in the palm propulsive smooth and easy, is in simultaneously heavy board portion top is left certain space, heavy board top space more can be used to the thickening to correspond the electronic equipment frame of position department in order to increase the intensity of electronic equipment frame.

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 stacked card holder according to the present application;

FIG. 2 is an exploded perspective view of the stacked cartridge of the present application;

FIG. 3 is an exploded perspective view of another angle of the stacked cartridge of the present application;

fig. 4 is a perspective assembly view of the housing assembly and the card ejecting mechanism of the stacked card socket of the present application;

FIG. 5 is a perspective view of an actuator of the card ejecting mechanism of the stacked card socket of the present application;

FIG. 6 is a perspective view of another angle of the actuator of the card ejecting mechanism of the stacked card socket of the present application;

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

FIG. 8 is a perspective view of the card holder of the present application from another angle;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 10 is an enlarged partial view of the dotted circle shown in FIG. 9;

fig. 11 is a perspective view of the stacked card socket of the present application, in which the first conductive terminals of the first terminal set are integrally connected to the terminal material tape;

fig. 12 is a combination diagram of a first terminal connection terminal strip and a shielding shell connection shell strip of the stacked card socket of the present application;

fig. 13 is a perspective view of the housing assembly of the present application after the insulating body is formed and the first conductive terminal connection site is cut.

Description of the reference numerals

A card holder-10; a separator-11; a frame body-12; side frame-121; foolproof groove-1211; tail frame-122; a first end frame-1221; a second end frame-1222; a card holding elastic piece-123; a card holding elastic arm-1231; deformation gap-1232; a cover plate-124; an escape step-126; a platform portion-127; first card space-S1; second card-carrying space-S2; card withdrawing mechanism-20; a push rod-21; force-bearing end-211; a rod body-212; a pushing portion-213; an actuator-22; a pry portion-221; a shaft portion-222; a top-pushing part-223; convex hull-225; a bending part-226; rivet-23; a second terminal set-30; a second conductive terminal-31; an insulating block-32; a second contact portion-311; a solder tail-312; a housing assembly-A; a shielding shell-40; a plate body portion-41; a main body plate portion-411; riveting holes-412; side-42; an elastic member-43; a holding protrusion-431; a countersink portion-44; a sinking plate body-441; a vertical wall-442 of the sinking plate; fool-proof step-443; a protective sheet-444; a tail plate-45; a tailgate body-451; a trailing wall-452; a folded wall-453; a cut-out portion-46; a movable terminal-47; a trailing arm-471; a lower boom-472; an extender arm-473; a stressed arm-474; force-bearing end-475; an avoidance tip-476; tape extension space-48; assembly space-49; 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; connecting strip-515; a stationary terminal-53; an embedded part-531; a contact beam-532; an embedded end-533; an insulator body-52; a first insulating main board-521; a thickened portion-522; a second insulating main board-523; an insulation tail-524; deformation notch-525; an avoidance portion-526; a through-hole-527; a printed circuit board 70; a terminal strip-80; a first bridge-81; a second bridge-82; a third bridge-83; a fourth bridge-84; shell material belt-90.

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 some of the embodiments of the present application, and not all of the 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 in the up-down direction (vertical direction).

Referring to fig. 1 to 8, the stacked card socket of the present application includes a housing assembly a having a first terminal set 50, two second terminal sets 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, and a card ejecting mechanism 20 assembled on the housing assembly a.

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 has a first card loading space S1 on one side facing the first terminal set 50, and two second card loading spaces S2 on one sides facing the two second terminal sets 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 loading spaces S1, S2 are vertically partitioned by a partition 11.

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 shell 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 has a cut portion 46 cut out at the center thereof and opened rearward, the end plate 45 includes a horizontal end plate main body 451 and an end wall 452 bent downward from the lateral outer side and the rear side of the end plate main body 451, the bottom end of the vertical end wall 452 is soldered to the printed circuit board 70 as a solder fillet, and the end plate 45 is bent downward from the rear portion of the board body 41 to form a bent wall 453. The sinking plate part 44 includes a sinking plate body 441, a fool-proof step 443 formed by bending and extending downwards from the two lateral sides of the sinking plate body 441 and then bending and extending outwards from the lateral side, and a sinking plate vertical wall 442 formed by bending and extending downwards from the lateral side of the fool-proof step 443. The bottom end of the vertical sinking plate wall 442 is soldered to the printed circuit board 70 as a solder fillet, and the bottom end of the vertical sinking plate wall 442 is bent inward to form a retaining piece 444. 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.

With continued reference to fig. 9 and 10, the rear portion of the plate body 41 extends rearward to form a movable terminal 47 located in or below the cut-out portion 46, and the movable terminal 47 includes a rear extension arm 471 extending rearward from the rear portion of the plate body 41, a lower extension arm 472 extending downward from the rear end of the rear extension arm 471, an extension arm 473 extending downward from the rear end of the lower extension arm 472, a force receiving arm 474 extending downward from the rear end of the extension arm 473, and a force receiving end 475 bent upward from the end of the force receiving arm 474. The free end of the force receiving end 475 is tilted upward to form a relief end 476, and the lower side of the extension arm 473 forms a contact portion near the end of the force receiving arm 474. The rear arm 471 preferably extends rearward not beyond the bending wall 453, that is, the lower arm 472 does not extend rearward beyond the bending wall 453 in the lateral projection direction. The extension arm 473 and the stressed arm 474 are projected in the transverse direction to the lower side of the tail plate 45, i.e., not to exceed the upper surface of the tail plate 45.

When the card holder 10 is inserted, the force-bearing end 475 is supported on the card holder 10 and moves upwards, the force-bearing arm 474 and the extension arm 473 are elastically deformed upwards, at this time, the bending position between the extension arm 473 and the force-bearing arm 474 is raised to the highest, but at this time, the bending position between the extension arm 473 and the force-bearing arm 474 still does not exceed the upper surface of the tail plate 45 upwards. The elastic force of the movable terminal 47 is mainly from the elastic deformation of the lower arm 472. Here, the movable terminal 47 constitutes a part of a detecting element, which will be described in detail later.

The plate portion 41 includes a main plate portion 411 and a rivet hole 412 formed at one lateral side of a rear portion of the main plate portion 411, and the rivet hole 412 is located at a top surface of the main plate portion 411 and is recessed downward. One of the side portions 42 and the elastic member 43 extend relatively to form an abutting convex portion 431 elastically abutting against two lateral sides of the card holder 10.

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 main body plate 411 and the tail plate 45. The insulating main body 52 includes a first insulating main board 521 formed and combined on the lower surface of the main board 411, a second insulating main board 523 formed on the lower surface of the tail board 45 and filling a part of the cut-out portion 46, a thickened portion 522 connecting the first insulating main board 521 and the second insulating main board 523, and an insulating tail board 524 extending downward from the tail portion of the second insulating main board 523. The thickened portion 522 and the second insulating main board 523 penetrate through the movable terminal 47 to form a deformation gap 525, the thickened portion 522 is provided with a backward escape portion 526 at a side corresponding to the card withdrawing mechanism 20, and a through hole 527 corresponding to the riveting hole 412 penetrates through the transverse outer side of the escape portion 526 from top to bottom.

As shown in fig. 11 to 13, the first conductive terminal 51 includes a holding portion 512 formed and fixed in the first insulating main board 521, a first contact portion 511 formed by extending 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.

The first conductive terminal 51 further includes a plurality of connecting bars 515 connecting the holding portion 512 and the solder tails 514. The connecting bar 515 is led out from the lateral outer side of the holding portion 512, and then extends backward along one lateral side of the first contact portion 511, passes through the first insulating main board 521, the thickened portion 522, the second insulating main board 523 and the insulating tail board 524, and extends out of the solder tail 514. The connecting strip 515 is close to the side far away from the card withdrawing mechanism 20 at the rear end so that a part of space is left on the side of the card withdrawing mechanism 20 for riveting the card withdrawing mechanism 20. Each first conductive terminal 51 is connected with a connecting bar 515 and a solder leg 514, a static terminal 53 is further integrally formed outside a deformation gap 525 corresponding to the insulating body 52, and the static terminal 53 includes an embedded portion 531 formed by extending backward together with the connecting bar 515, a contact beam 532 formed by extending from one lateral side of the embedded portion 531 along the lateral direction, and an embedded end portion 533 formed at the tail end of the contact beam 532. The contact beam 532 is exposed in the deformation gap 525, and when the card holder 10 is not inserted, the lower surface of the extension arm 473 of the movable terminal 47 is electrically contacted with the contact beam 532; after the card holder 10 is inserted, pushing the movable terminal 47 upward causes the extension arm 473 to move upward and out of contact with the contact beam 532. The movable terminal 47 and the fixed terminal 53 jointly form the detecting component, and the movable terminal 47 does not exceed the upper surface of the shielding shell 40 in any state, so that the space is reasonably utilized.

When the first conductive terminals 51 are punched and formed, the plurality of first conductive terminals 51 are connected to a terminal material belt 80, and the holding part 512 of the first conductive terminals 51 is connected to the terminal material belt 80 through a first material bridge 81; the solder tails 514 of the first conductive terminals 51 are connected to the second solder bridges 82; the laterally outermost connecting strips 515 are connected to the terminal strip 80 by third and fourth bridges 83, 84, respectively. The four side surfaces of the first conductive terminals 51 are connected and fixed on the terminal material belt 80, so that the first conductive terminals 51 are kept stable in position to facilitate the subsequent injection molding process. The fixed terminals 53 are also connected to the terminal tape 80, and the connecting strips 515 are integrally connected to the terminal tape 80 at the rear side of the first contact portion 511 and connected to the terminal tape 80 through the third and fourth bridges 83, 84. The fourth material bridge 84 is cut off before being combined with the shielding shell 40, and the fourth material bridge 84 needs to be cut firstly due to the shielding of the side part 42 of the shielding shell 40; however, the fourth material bridge 84 can ensure that the first conductive terminals 51 are kept stable and do not bend to cause poor flatness in the processes of stamping forming and subsequent transportation; the remaining first, second and third bridges 81, 82 and 83 shown in fig. 11 are cut after the first conductive terminals 51 are injection molded, and a plurality of cut points are seen on the figure, so that the cut first conductive terminals 51 and the fixed terminals 53 are independent from each other and do not generate electrical connection, and the cutting process is performed after the insulating body 52 is injection molded.

Referring to fig. 12, the shielding shell 40 is formed with a material belt extending space 48 behind the assembling space 49 for the third material bridge 83 to extend out of the shielding shell 40. The shielding shell 40 is connected through a shell material belt 90, the shell material belt 90 is fixedly overlapped with the terminal material belt 80, a gap exists between the first conductive terminal 51 and the shielding shell 40, and the terminal material belt 80 is overlapped with the shell material belt 90 by bending the material belt. The first conductive terminal 51 and the shielding shell 40 are injection molded in a mold to form the insulating body 52, and an insulating material is filled between the first conductive terminal 51 and the shielding shell 40 to electrically isolate the first conductive terminal 51 from the shielding shell 40. Meanwhile, the fixed terminal 53 is formed in the deformation notch 525 of the insulating body 52, the embedded portion 531 and the embedded end portion 533 are respectively embedded in the insulating body 52 on both lateral sides of the deformation notch 525, and the contact beam 522 crosses the deformation notch 525. The width of the embedded end 533 in the front-rear direction is greater than the width of the contact beam 522 to strengthen the coupling force between the embedded end 533 and the insulating body 52.

After the insulation body 52 is injection molded, the terminal material strip 80 and the housing material strip 90 are cut, and the third material bridge 83 is broken at the edge of the insulation body 52. The connection between the connecting strip 515 and the stationary terminal 53 is cut at the same time.

Referring to fig. 2, each of the two second terminal sets 30 includes 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 311 formed by extending from the molding portion in an oblique direction, and a solder leg 312 extending from the molding portion to the insulating block 32.

Referring to fig. 4 to 6, 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 push rod 21 includes a rod body 212, a force receiving portion 211 formed at a front end of the rod body 212, and a pushing portion 213 located at a rear end of the rod body 212. The push rod 21 can move back and forth in the assembly space 44. The actuating member 22 includes a shaft portion 222 riveted in the riveting hole 412 and rotatable, a pushing portion 223 laterally extending from the shaft portion 222 into the moving space of the card holder 10, and a prying end 221 formed by extending from the other end of the shaft portion 222 obliquely to the front side and abutting against the pushing portion 213. The actuator 22 is riveted to the shielding shell 40 through a rivet 23 passing through the riveting hole 412 and the through hole 527. When the push rod 21 is pushed backward, the pushing portion 213 pushes the prying end 221 backward, and during the process that the prying end 221 moves backward, the actuating member 22 rotates around the shaft portion 222 and forces the ejector 223 to rotate forward, so that the card holder 10 is pushed forward. The top pushing portion 223 is formed with a convex hull 225 that abuts against the lower surface of the first insulating main board 411 by upward stamping, and the convex hull 225 is a smooth spherical structure, so that friction between the convex hull 225 and the lower surface of the first insulating main board 411 can be reduced, and the actuator 22 is prevented from scraping the first insulating main board 411 to cause a short circuit with the first conductive terminal 51. The prying end 221 and the pushing portion 223 are formed by bending downward from the shaft portion 222 and then horizontally extending, and a bending portion 226 is formed, so that the lower surfaces of the prying end 221 and the pushing portion 223 are lower than the lower surface of the shaft portion 222, thus a space can be reserved for the convex hull 225, and the shaft portion 222 is tightly attached to the shielding shell 40 to keep a firmer combination, in specific implementation, the riveting hole 412 is recessed downward into the through hole 527, and the shaft portion 222 is directly riveted on the riveting hole 412 without being extruded with a softer plastic material.

As shown in fig. 7 and 8, the card holder 10 includes a partition 11, a frame 12 formed on an outer periphery of the partition 11, the first card loading space S1 formed on an upper side of the partition 11 and surrounded by the frame 12, and two second card loading spaces S2 formed on a lower side of the partition 11 and surrounded by the frame 12. The partition plate 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.

The front frame 124 extends backwards from the upper side to form a card holding elastic element 123 located at the front end of the first card loading space S1, and the card holding elastic element 123 may be a plastic material structure integrally extending backwards from the front frame 124, or a metal elastic sheet mounted on the front frame 124 and protruding to the first card loading space S1. The elastic clip element 123 includes elastic clip arms 1231 protruding into the first clip space S1 and a deformation gap 1232 formed between the elastic clip arms 1231 and the front frame 124, so that the elastic clip arms 1231 have elastic properties. The side frames 121 laterally outside the two second card loading spaces S2 are assembled with card holders 13 projecting into the second card loading spaces S2.

The peripheral edge of the side frame 121 on the surface of the first card loading space S1 is recessed downward to form a fool-proof groove 1211 matching with the fool-proof step 443 of the sinking plate part 44. The tail frame 122 includes a first tail frame 1221 positioned at the tail of the first card carrying space S1 and a second tail frame 1222 positioned at the tail of the second card carrying space S2. A platform 127 is formed between the first end frame 1221 and the second end frame 1222 on the side of the first card loading space S1, and an escape step 126 is formed at the rear end edge of the first end frame 1221. After the card ejecting mechanism 20 is riveted on the shielding shell 40, the actuator 22 is located in the escape portion 526 of the insulating body 52, and the top pushing portion 223 of the actuator 22 moves and pushes the card ejecting step 126 and forces the card holder 10 to eject. The platform part 127 is at least partially overlapped with the second card loading space S2 at the rear side in the vertical direction.

The utility model provides a heap cassette shield casing 40 front side to bend down and form the horizontal plane and be less than the heavy board portion 44 of board portion 41, simultaneously, insulator 52 no longer covers heavy board portion 44 lower surface makes the lower surface of heavy board portion 44 with the lower surface parallel and level of insulator 52's first insulation mainboard 521 guarantee that the card holds in the palm 10 propulsive smooth and easy, is in simultaneously heavy board portion 44 top leaves certain space, the space that sinks that the board portion 44 top is many is used to thicken the electronic equipment frame that corresponds position department in order to increase the intensity of electronic equipment frame.

The side direction bends down the back again the level and extends backward and form tailboard 45 behind shielding casing 40 rear side of this application heap cassette, the space of tailboard 45 upside can supply other electronic components to use, has increased circuit board design space, just insulator 52 is in the extension of tailboard 45 downside shaping second insulation mainboard 523 for first conductive terminal 51 makes simultaneously the platform portion of the first year card space S1 rear side that the card held in the palm 10 is filled in the tailboard 45 below, promptly the second carries card space S2 to fill in tailboard 45 with the second insulation mainboard 523 below has practiced thrift the space, is convenient for the design of components and parts on the electronic equipment printed circuit board.

In the stacked card socket of the present application, the thickened portion 522 of the insulating body 52 and the position of the second insulating main board 523 corresponding to the actuator 22 of the card withdrawing mechanism 20 are provided with the avoiding portion 526 to accommodate the actuator 22, the actuator 22 is located between the avoiding portion 526 and the platform portion 127 of the card holder 10, the actuator 22 pushes the card withdrawing step 126 on the front side of the platform portion 127 to withdraw the card holder through the rotation of the actuator 22, the card withdrawing mechanism 20 is installed by reasonably utilizing the space, and meanwhile, the connecting strip 515 of the first conductive terminal 51 avoids the position of the riveting hole 412 of the shielding shell 40, leaving the space where the riveting hole 412 is recessed downward to the avoiding portion 526.

The stacked card socket of the present application extends from the rear end of the board body 41 of the shielding shell 40 to the rear lower side to form the movable terminal 47, the thickened portion 522 and the second insulating main board 523 of the insulating body 52 are provided with the deformation notches 525 penetrating vertically at positions corresponding to the movable terminals 53, and the stationary terminals 53 crossing the deformation notches 525 are integrally formed when the first conductive terminals 51 are formed, the movable terminal 47 is pushed upwards by the second tail frame 1222 at the tail of the platform 127 of the card holder 10 so that the movable terminal 47 is separated from the contact with the stationary terminals 53 to realize the detecting function of the detecting component, and the movable terminal 47 does not exceed the upper surface of the shielding shell 40 upwards in the actuating process.

During the stamping forming of the first conductive terminal 51 of this application heap cassette, connecting strip 515 is walked around at the rear side move back card mechanism 20 mounted position one side and leave the space for the installation of moving back card mechanism 20, simultaneously, before injection moulding first conductive terminal 51 all connects on terminal material area 80 in the front and back left and right sides direction, guarantees stable in structure in the transportation, cut horizontal one side fourth material bridge 84 before injection moulding with shield casing 40 and add the shaping, third material bridge 83 follows shield casing 40's material area extension space 48 extends and avoids unable side direction material bridge of applying, cuts off terminal material area 80 and casing material area 90 after the shaping and cuts off the position of connection between the first conductive terminal 51 and make its electrical isolation.

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 to be construed as limiting the scope of the utility model. 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 (10)

1. A stack-type card holder comprises a shell assembly provided with a first terminal group, a second terminal group arranged on a printed circuit board below the first terminal group, a moving space formed between the first terminal group and the second terminal group, a card holder moving in the moving space and limited by the shell assembly, and a card withdrawing mechanism assembled on the shell assembly, wherein the shell assembly comprises a plurality of first conductive terminals, a shielding shell and an insulating body forming the first conductive terminals on the lower surface of the shielding shell, the stack-type card holder is characterized in that the shielding shell comprises a plate body part, a sinking plate part bent downwards from the front end of the plate body part and then bent forwards and extended, and two side parts bent downwards from two transverse sides of the plate body part and extended, the first conductive terminals comprise first contact parts extending into the moving space and welding feet extending backwards from the first contact parts, the insulating body comprises a first insulating main board which fixes the first contact part below the board body part, and the lower surface of the first insulating main board is flush with the lower surface of the sinking board part.

2. The stacked card holder according to claim 1, wherein the upper surface of the sinking plate portion is lower than the upper surface of the plate body portion, the sinking plate portion comprises a horizontal sinking plate main body, a fool-proof step formed by bending and extending downwards from two lateral sides of the sinking plate main body and then bending and extending outwards laterally, and a sinking plate vertical wall formed by bending and extending downwards from the fool-proof step outwards laterally, and the bottom end of the sinking plate vertical wall is welded on a printed circuit board as a solder foot.

3. The stacked card holder according to claim 2, wherein the bottom end of the vertical wall of the sinking plate is bent inward to form a retaining plate, the upper and lower sides of the card holder are respectively provided with a first card loading space facing the first terminal set and two second card loading spaces facing the second terminal set, the card holder further comprises a partition plate separating the first card loading space from the second card loading space and a frame body formed on the periphery of the partition plate, the frame body comprises two side frames, a front frame and a rear frame, the outer edge of each side frame is provided with a fool-proof groove matching with the fool-proof step, and the retaining plate supports the bottom of the side frame.

4. The stacked card holder of claim 1, wherein the shielding shell further comprises a bending wall bent downward from the rear end of the board body and extending therefrom, and a tail board bent horizontally from the bottom of the bending wall and extending therefrom, the insulating body further comprises a thickened portion covering the board body near the bending wall and a second insulating main board formed on the lower surface of the tail board, the first insulating main board and the second insulating main board are joined by the thickened portion, and the lower surface of the thickened portion is flush with the lower surface of the second insulating main board.

5. The stacked cartridge of claim 4, wherein each of the first conductive terminals includes a connecting strip extending from the first contact portion and rearwardly connecting to the solder tail, the connecting strip extending out of the tail plate along the first main insulating plate, the thickened portion, and the second main insulating plate.

6. The stacked card holder of claim 5, wherein the tail plate comprises a horizontal tail plate main body and a tail wall bent downward from the rear side and two lateral sides of the tail plate main body, the tail wall is soldered to the printed circuit board as a solder foot, the insulative housing further comprises an insulative tail plate extending downward along the tail wall, and the connecting bar is bent downward within the insulative tail plate and then bent backward to form a solder foot located on the lower side of the tail plate.

7. The stacked card holder according to claim 6, wherein a first card loading space facing the first terminal set and two second card loading spaces facing the second terminal set are respectively formed on upper and lower sides of the card holder, the card holder further comprises a partition plate separating the first card loading space from the second card loading space, and a frame body formed on an outer periphery of the partition plate, the frame body comprises two side frames, a front frame and a rear frame, the rear frame comprises a first rear frame located behind the first card loading space and a second rear frame located behind the second card loading space, the second rear frame is located further behind the first rear frame and is not overlapped with the first rear frame in a vertical direction, so that a terrace portion is formed on a rear side of the first rear frame, and the terrace portion is at least partially overlapped with the second card loading space in the vertical direction.

8. The stacked card socket as claimed in claim 7, wherein after the card holder is inserted into the moving space, the platform portion is correspondingly inserted into the lower side of the second insulating main board, and the first tail frame is limited at the front side of the thickened portion.

9. The stacked card holder of claim 8, wherein the card ejecting mechanism comprises a push rod assembled on one lateral side of the shielding shell and an actuator engaged with the push rod and riveted on the rear side of the plate body, the actuator comprises a shaft portion rotatably riveted on the lateral rear side of the plate body, a prying portion formed by extending laterally from the shaft portion and a pushing portion, and the thickened portion of the insulating body and the second insulating main plate are formed with an escape portion for accommodating the actuator at a position corresponding to the actuator.

10. The stacked card holder according to claim 9, wherein a concave riveting hole is formed in the rear side of the plate body, a through hole is formed in the insulating body corresponding to the riveting hole, the riveting hole is concave into the through hole or downward beyond the through hole, the actuator is directly in contact with the riveting hole for riveting, the actuator is positioned between the avoiding portion and the platform portion of the card holder for rotation, the actuator pushes the first tail frame of the card holder forward to withdraw the card holder when rotating, and the connecting strip of the first conductive terminal is drawn close to one lateral side to avoid the avoiding portion when extending to the rear end side of the plate body.

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