CN211556197U - Card holder and stacked card holder - Google Patents

Abstract

The application provides a card holds in palm, including the division board, be formed at the vertical arm of the horizontal both sides of division board, be formed at the tail arm of division board rear end, be formed at the preceding tip of division board front end and form in the cap of preceding tip front side, vertical arm, tail arm and preceding tip are in the upper surface of division board is enclosed to establish and is formed with the first card space of holding, vertical arm, tail arm and preceding tip are in the lower surface of division board is enclosed to establish and is formed with second, the third of arranging on longitudinal direction and holds the card space, the preceding tip includes to the protrusion extend into first, the third of card space hold first, third press from both sides card portion, vertical arm is located the second holds card space position department and is equipped with protruding the second of card space and presss from both sides card portion. The present application also includes a stacked cartridge.

Description

Card holder and stacked card holder

Technical Field

The present disclosure relates to electrical connectors, and more particularly to a card holder and a stacked card holder.

Background

The memory of the mobile phone generally has two existing modes, namely a built-in memory (ROM) and an extended memory (T-Flash). The price of the built-in memory is high, and a memory expansion card seat is reserved by a general mobile phone manufacturer for a user to select an expansion memory. Meanwhile, an identity module (SIM) is a number card that a mobile phone must be installed, and generally, a SIM card holder and a TF card holder are respectively installed on the mobile phone for inserting various electronic cards. The patent of the republic of china CN209183801U discloses a stacked all-in-one card holder, which comprises a first terminal module arranged on a printed circuit board, a second terminal module formed on the top wall of a metal shell and a card holder moving between the first end module and the second end module, wherein the upper side and the lower side of the card holder are provided with a first card and a second card which are respectively in electric contact with the first terminal module and the second terminal module. The above only solves the problem of the upper and lower card structures, but the technical scheme that the market needs 2 SIM cards and 1 TF expansion card does not solve the problem, and along with the powerful functions of the camera, the requirement for UHS (ultra high speed) TF cards is also enhanced, and how to solve the stability of the high-frequency transmission performance is very important.

SUMMERY OF THE UTILITY MODEL

Therefore, there is a need for a card holder and a stacked card socket compatible with two SIM cards and one TF card.

For solving above-mentioned technical problem, the application provides a card holds in palm, including the division board, be formed at the vertical arm of the horizontal both sides of division board, be formed at the tail arm of division board rear end, be formed at the preceding tip of division board front end and form in the cap of front end portion front side, vertical arm, tail arm and front end portion are in the upper surface of division board is enclosed to establish and is formed with first holding the card space, vertical arm, tail arm and front end portion are in the lower surface of division board is enclosed to establish and is formed with second, the third that arranges on longitudinal direction and holds the card space, preceding tip includes that the back protrusion extends into first, third hold the first, the third in card space and press from both sides card portion, vertical arm is located the second holds card space position department and is equipped with protruding the card portion is pressed from both sides to the second in the card space.

Preferably, the first card accommodating space is a TF card slot, and the second and third card accommodating spaces are SIM card slots.

Preferably, the partition plate is a metal plate and comprises a partition plate body and a through hole penetrating the front end of the partition plate body, and the longitudinal arm, the tail arm and the front end part are plastic bodies injection-molded on the outer periphery of the partition plate body.

Preferably, the first and third clipping portions are elastic structures respectively extending backwards into the first and third card accommodating spaces from the upper and lower sides of the front end portion, and when the TF card or the SIM card is placed into the first and third card accommodating spaces, the first and third clipping portions apply elastic contact force to the TF card or the SIM card to keep the TF card and the SIM card from falling off when the TF card or the SIM card is turned over.

Preferably, the first card clamping part is located further back than the third card clamping part, and at least a part of the SIM card in the third card accommodating space is vertically overlapped with the first card clamping part.

Preferably, one of the longitudinal arms is provided with an installation opening at the inner side of the second accommodating space, and the second clamping part is installed and fixed in the installation opening.

Preferably, the partition plate body is provided with a notch at a position corresponding to the mounting opening, the mounting opening includes a stepped portion and a mounting hole formed by penetrating through the stepped portion along the notch, the second clamping portion includes a base portion fixed in the mounting opening and an elastic strip body extending into the second card accommodating space from the base portion, and the elastic body elastically abuts against an edge of the SIM card placed in the second card accommodating space.

Preferably, the second clamping portion further includes an avoiding portion provided at a lower side of the base portion to avoid the step portion, and a fixing column protruding from a bottom side of the base portion and fixed in the mounting hole.

Preferably, the outer edges of the upper sides of the pair of longitudinal arms are provided with a limiting groove and a limiting wall formed at the front end of the limiting groove at the front end position, the transverse outer side of each longitudinal arm is provided with a clamping groove, and the bottom of each longitudinal arm protrudes downwards to form a supporting strip supported on a printed circuit board.

In order to solve the above technical problem, the present application further provides a stacked card socket, which includes the aforementioned card holder, two first terminal modules attached to the printed circuit board to correspond to the second and third card accommodating spaces, a shielding shell having a top wall and a side wall, and a second terminal module disposed on the top wall of the shielding shell to correspond to the first card accommodating space, wherein the shielding shell and the second terminal module thereon are welded to the printed circuit board, and the first terminal module and the second terminal module are disposed opposite to each other and form an accommodating space for inserting and pulling the card holder therebetween.

The card holder is provided with a first card accommodating space suitable for a TF card at the upper side, two second card accommodating spaces and two third card accommodating spaces which are longitudinally arranged and suitable for SIM cards at the lower side, and the front end part of the plastic body protrudes towards the first card accommodating space and the third card accommodating space to form a first clamping part and a third clamping part so as to keep the first electronic card and the third electronic card from falling off when the first electronic card and the third electronic card are turned over; in order to solve the problem that the second card containing space keeps the second electronic card not to fall off, a second clamping part is arranged on the longitudinal arm corresponding to the second card containing space. The card support realizes the technical scheme of integrating two SIM cards and one TF card.

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.

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 card holder of the present application with the holder removed;

FIG. 3 is a perspective view of the stacked card socket of the present application with the printed circuit board removed and the first terminal module thereon;

fig. 4 is a perspective view of the shielding shell, the second terminal module and the card withdrawing mechanism of the stacked card holder of the present application;

FIG. 5 is a perspective view of a shielding shell of the stacked card socket of the present application;

FIG. 6 is a perspective view of a second terminal module of the stacked cartridge of the present application;

FIG. 7 is a perspective view of another angle of the second terminal module of the stacked cartridge of the present application;

fig. 8 is a perspective view of a second terminal set of the stacked card socket of the present application;

FIG. 9 is a sectional view taken along the line A-A of FIG. 6 and a partial enlarged view thereof;

FIG. 10 is a cross-sectional view of the second terminal set of FIG. 9 shown in an operative position after insertion of the TF card;

FIG. 11 is a perspective view of the card holder of the present application with a TF card;

FIG. 12 is a perspective view of the card holder of the present application;

FIG. 13 is a perspective view of the card holder of the present application from another angle;

FIG. 14 is a perspective view of a metal insert of the card holder of the present application;

fig. 15 is a perspective view and a partial enlarged view of the third elastic card element of the present application with the card holder removed;

fig. 16 is a perspective view of a third resilient clip member of the present invention;

FIG. 17 is a perspective view of a card holder of the present application supported on a printed circuit board;

fig. 18 is a sectional view taken along the line B-B shown in fig. 17.

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. The card withdrawing direction X shown in figure 1 is taken as the longitudinal front direction in the application; the Y direction is taken as the transverse right direction; the Z direction is taken as the vertical upper direction.

Referring to fig. 1 to 5, the stacked card socket of the present application includes a first terminal module 60 soldered on a printed circuit board 10, a shielding shell 30, a second terminal module 40 disposed on an inner side of the shielding shell 30, a card ejecting mechanism 50 assembled on one lateral side of the shielding shell 30, an insulating body 30, a first terminal set 40 disposed on a top wall 31 of the insulating body 30, a receiving space (not numbered) formed between the first terminal module 60 and the second terminal module 40, and a card holder 20 moving in the receiving space.

Referring to fig. 5, the shielding shell 30 includes a base 31 and two side walls 32 formed by bending and extending downward from two lateral sides of the base 31. The base 31 includes a main body plate 311 and a front plate 312 extending forward from the main body plate 311, the side walls 32 are formed by bending and extending from two lateral sides of the main body plate 311, the two lateral sides of the front plate 312 are bent and extending downward to form limiting walls 33, and the width between the limiting walls 33 is smaller than the width between the side walls 32. The main body plate 311 is provided with a window 313, a connecting beam 314 is arranged in the middle of the window 313 in the transverse direction, a switch static terminal 315 formed by bending and extending downward from the middle of the rear end of the main body plate 311, a blocking wall 316 formed by bending and extending downward from two transverse sides of the rear end of the main body plate 311, and a riveting hole 317 arranged at a position of the main body plate 311 close to the blocking wall 316. The lower ends of the side wall 32, the limiting wall 33 and the blocking wall 316 are bent to form soldering portions 322, 331, 318 soldered on the printed circuit board 10.

One of the two side walls 32 is formed with an elastic piece 321 extending into the receiving space to apply an elastic force to the card holder 20, and the inner side of the other side wall 32 is formed with a mounting portion for mounting the card ejecting mechanism 50. The main plate 311 inside the mounting portion is torn downward to form the elastic piece 321, the mounting portion is located between the elastic piece 321 and the sidewall 32, and the elastic piece 321 on one side of the mounting portion includes an elastic portion extending into the accommodating space, connecting portions 323 located on both longitudinal sides of the elastic portion and connected to the main plate 311, and pressing pieces 324 formed at both longitudinal ends of the elastic piece 321 and extending toward the sidewall 32 to apply elastic force. The distance between the two stopper walls 33 is smaller than the distance between the two side walls 32 but smaller than the minimum distance between the pair of elastic pieces 321 extending in. The back end of the side wall 32 without the installation part is torn inwards to form a limit hook 325 which protrudes into the accommodating space.

The card ejecting mechanism 50 includes a push rod 51 installed in the installation portion of the shielding housing 30, a cam 52 riveted to the riveting hole 317, and a rivet 53 for riveting the cam 52 in the riveting hole 317. The card ejecting mechanism 50 is well known in the art and will not be described herein.

The first terminal module 60 includes two SIM card terminal modules 61, 62 arranged in a longitudinal direction, and each of the SIM card terminal modules 61, 62 includes a first terminal group and a first insulator that forms the first terminal group into a single body.

Referring to fig. 4 to 10, the second terminal module 40 includes a second terminal set 41 and a second insulator 42 formed on the inner surface of the main plate 311 of the shielding shell 30 and the second terminal set 41. In a specific embodiment, the first terminal module 40 may also be assembled on the inner side surface of the shielding shell 30.

Each conductive terminal of the second terminal set 41 includes an elastic arm 411 extending downward into the receiving space, an extending portion 412 extending backward from the elastic arm 411, and a solder leg 413 bent downward from a rear end of the extending portion 412. All the conductive terminals of the second terminal set 41 are connected to form a whole at the extending portion 412, and the connected portion is cut off after injection molding so as to electrically isolate the conductive terminals from each other. The two conductive terminals at the outermost side extend laterally to form a connecting material belt 414, and the connecting material belt 414 is integrally connected in front to form a combined material belt 415. The composite strip 415 is cut and isolated after injection molding. The second terminal module 40 is a TF card terminal module, specifically a UHS (ultra high speed) TF card terminal module.

The elastic arm 411 of the second terminal set 41 includes a contact portion 4111 extending into the receiving space, first and second elastic arms 4112, 4113 formed by extending the contact portion 4111 obliquely upward to the front and rear sides, respectively, a free end portion 4114 formed by bending the second elastic arm 4112 forward and horizontally extending, and a locking portion 4115 formed between the free end portion 4114 and the second elastic arm 4112. The width of the free end portion 4114 is greater than the width of the detent portion 4115.

The second insulator 42 includes a bonding body 421 bonded to the inner wall surface of the main plate portion 311 of the shield case 30, a deformation opening 422 opened in the bonding body 421 corresponding to the elastic arm 411 of the second terminal group 41, and a rear wall 423 extending downward from the rear end of the bonding body 421. The rear wall 423 is provided with a hole structure 424 corresponding to the riveting hole 317 of the shielding shell 30 for the rivet 53 to pass through, the extending portion 412 of the second terminal set 41 is integrally formed at the rear end of the attaching main body 421, and the solder leg 413 extends out of the bottom surface of the rear wall 423 and is soldered on the printed circuit board 10. The free end portion 4114 of the elastic arm 411 of the second terminal set 41 is located at the front side of the card insertion end compared with the extending portion 412. A limiting portion 425 for limiting the free end portion 4114 is formed on the bonding body 421 in front of the deformation port 422, and the limiting portion 425 includes an extending hole 4251 penetrating the bonding body 421 in the vertical direction, a limiting step 4254 formed by protruding from the bottom side of the limiting portion 425, and an upper limiting beam 4252 and a lower limiting beam 4253 for vertically clamping the upper and lower sides of the locking portion 4115. The upper limit beam 4252 and the lower limit beam 4253 are arranged in a staggered manner in the vertical direction, so that after the second terminal set 41 is injection molded, only one surface of the clamping portion 4115 of the second terminal set 41 is molded on the lower surface of the upper limit beam 4252 and the upper surface of the lower limit beam 4253, and after the contact portion 4111 of the elastic arm 411 is pressed by a TF card, the clamping portion 4115 can be easily separated from the joint surface of the upper limit beam 4252 and the lower limit beam 4253, so that the free end portion 4114 becomes a movable free end. The width of the locking portion 4115 is smaller than that of the free end portion 4114, so that the free end portion 4114 is always located in the extension hole 4251 and cannot be pulled out from the extension hole 4251. The free end portion 4114 is freely movable in the extending hole 4251, and the limiting step 4254 is configured such that the free end of the free end portion 4114 is always located above the limiting step 4254 and cannot enter the accommodating space downward during the maximum downward movement stroke of the free end portion 4114.

The deformation port 422 corresponds to the window 313 of the shielding shell 30, the connecting beam portion 314 is located above the contact portion 4111, and the first and second resilient arms 4112, 4113 are arranged below the window 313 in the longitudinal direction. The connecting beam portion 314 can avoid the problem that the window 313 is too large and the window edge is easily deformed, and the connecting beam portion 314 is located right above the contact portion 4111, the contact portion 4111 is the portion farthest from the body plate portion 311, and when the contact portion 4111 is pressed, the contact portion 4111 still cannot contact the body plate portion 311 upwards and is short-circuited.

In order to use the ultra-high speed TF card, the stacked card socket of the present application needs to make the free end portion 4114 of the second terminal set 41 be located in front of the card insertion side, so that the extension portion 412 and the solder leg 413 directly extend from the elastic arm 411 to the back of the bottom surface of the back wall 423, thereby avoiding the problem that the ultra-high speed signal transmission is affected by the traditional forward insertion manner (i.e. the free end portion 4114 is arranged at the back to make TF inserted forward) that the extension portion 412 and the solder leg 413 need to be bent backward and extended from the front end of the elastic arm 411 in the opposite direction.

The stacked card socket of the present application further includes a movable switch terminal 80 mounted on the rear wall 423 of the second insulator 42, wherein the movable switch terminal 80 includes a fixing portion 81 fixed in the rear wall 423, an abutting portion 83 bent from the fixing portion 81 and extending into the receiving space, and a contact end portion 84 bent from the abutting portion 83 and extending backward and capable of electrically contacting with the stationary switch terminal 315. In an initial state, the contact end 84 is electrically contacted with the switch fixed terminal 315, and after the card holder 20 is inserted, the rear end of the card holder 20 pushes the interference part 83 backwards to disconnect the contact end 84 from the switch fixed terminal 315 and realize a switch function. The rear wall 423 is provided with a space-avoiding hole 4231 at a position corresponding to the contact end 84, a cross beam 4232 connecting two lateral sides of the rear wall 423 is formed at the bottom side of the space-avoiding hole 4231, and the design of the cross beam 4232 is beneficial to reducing the plastic warping problem of the rear wall 423 caused by the space-avoiding hole 4231.

As shown in fig. 11 to 16, the card holder 20 of the present application includes a partition plate 21 and a plastic body 22 formed on the periphery of the partition plate 21. The partition plate 21 includes a partition plate body 211, a through hole 214 opened at the front end of the partition plate body 211, and a notch 213 opened at the lateral outer side of the rear end of the partition plate body 211. The outer periphery 212 of the partition body 211 is molded and embedded in the plastic body 22. The plastic body 22 includes a pair of longitudinal arms 221 formed on the outer peripheral portions 212 of both lateral sides of the partition body 211, a trailing arm 222 formed on the outer peripheral portion 212 of the rear side of the partition body 211, a front end portion 223 formed on the outer peripheral portion 212 of the front side of the partition body 211, and a cover 224 formed at the front end of the front end portion 223. The upper side of the partition board body 211 and the plastic body 22 enclose a first card containing space S1(TF card), and the lower side of the partition board body 211 and the plastic body 22 enclose a second card containing space S2 and a third card containing space S3(SIM card) which are arranged in the longitudinal direction. A partition column 225 is formed between the second and third card receiving spaces S2, S3.

A clamping groove 2213 for clamping the elastic sheet 321 of the shielding shell 30 is arranged on the transverse outer side of the longitudinal arm 221; a limiting groove 2211 is formed in the transverse outer side of the upper surface of the longitudinal arm 221, and a limiting wall 2212 is formed at the front end 223 of the limiting groove 2211. A position limiting notch 2214 is formed in the rear end of the longitudinal arm 221 corresponding to the position limiting hook 325 of the shielding shell 30, and the limiting hook 325 is clamped in the position limiting notch 2214 to prevent the card holder 20 from being excessively inserted. The limiting walls 33 at the two lateral sides of the front plate 312 of the shielding shell 30 slide on the limiting grooves 2211 and are limited on the limiting walls 2212 of the card holder 20 to prevent the card holder 20 from being inserted further. The limiting wall 33 further includes a pressing portion 332 formed by bending outward from the lower end of the limiting wall 33, the pressing portion 332 is pressed in the limiting groove 2211, and the welding portion 331 is formed by bending downward and extending from the pressing portion 332.

The stacked card holder is clamped on the limiting wall 2212 at the front end of the limiting groove 2211 of the card holder through the limiting walls 33 at the two transverse sides of the shielding shell 30, the limiting hook 325 extending into the accommodating space is arranged at the rear end of the side wall 32 of the shielding shell 30, and the limiting notch 2214 matched with the limiting hook 325 is arranged at the rear end of the longitudinal wall 221 of the card holder 20 to realize double clamping and prevent excessive insertion.

A first clipping portion 2231 is formed on the upper side of the front end portion 223 of the plastic body 22 and protrudes towards the first card accommodating space S1, and a third clipping portion 2232 is formed on the lower side of the front end portion 223 and protrudes towards the third card accommodating space S3. The first and third clipping portions 2231, 2232 are elastic structures, and when the first electronic card and the third electronic card are placed in the first and third card accommodating spaces S1, S3, the first and third clipping portions 2231, 2232 are abutted against the outer edges of the first and third electronic cards to prevent the first and third electronic cards from falling off. A second clamping portion 23 is mounted or formed on the longitudinal arm 221 of the plastic body 22 at the second card accommodating space S2, and the second clamping portion 23 is used for abutting against a second electronic card placed in the second card accommodating space S2 to prevent the second electronic card from falling off. The longitudinal arm 221 is provided with an installation opening 24 at a position corresponding to the second clipping portion 23, and the installation opening 24 includes a step portion 241 near the second clipping space S2 and an installation hole 242 correspondingly communicated with the notch 213 of the partition plate 21. The second clipping portion 23 includes a base portion 231 accommodated in the mounting opening 24, a relief portion 232 formed below the base portion 231 to avoid the step portion 241, a fixed column 233 fixed in the mounting hole 242, and a plurality of elastic bodies 234 protruding from the inner side of the base portion 231 and extending into the second clipping accommodating space S2. The second clamping portion 23 is made of flexible plastic material, such as silica gel, and the elastic body 234 abuts against the second electronic card to prevent the second electronic card from falling off.

Since the longitudinal lengths of the two SIM cards are greater than the longitudinal length of one TF, the first clipping portion 2231 is located further back than the third clipping portion 2232. The partition plate 21 and the plastic body 22 of the card holder may also be directly and integrally formed by metal processing, such as an integrated structure manufactured by powder metallurgy and die casting, and at this time, the first and third clipping portions 2231 and 2232 need to be arranged in an installation manner such as the second clipping portion 23.

The card holder 20 of the present application is provided with a first card accommodating space S1 suitable for TF card at the upper side, and two second and third card accommodating spaces S2, S3 suitable for SIM card longitudinally arranged at the lower side, and the front end 223 of the plastic body 22 protrudes toward the first and third card accommodating spaces S1, S3 to form a first and third clamping portion 2231, 2232 to keep the first and third electronic cards from falling off when they are turned over; in order to solve the problem that the second card receiving space S2 holds the second electronic card without falling off, a second clamping portion 23 is disposed on the longitudinal arm 221 corresponding to the second card receiving space S2. The card support realizes the technical scheme of integrating two SIM cards and one TF card.

As shown in fig. 13, 17 and 18, the bottom of the longitudinal arm 221 of the card holder 20 protrudes downward to form a support strip 2215, the support strip 2215 is directly supported on the printed circuit board 10 to slide, and the upper side of the card holder 20 is limited below the top wall 31 of the shielding shell 30, and is mainly limited downward by the limiting wall 33 abutting against the limiting groove 2211 on the upper side of the longitudinal arm 221 of the card holder 20, so that a holding structure for holding the card holder 20 does not need to be formed by inward folding on the side wall 32 of the shielding shell 30, and the thickness of the product is further reduced.

The supporting strip 2215 is wide at the top and narrow at the bottom, so that the contact sliding area between the supporting strip 2215 and the printed circuit board 10 is reduced, the space of the printed circuit board 10 is prevented from being excessively occupied, and the problem that the friction force is excessively large due to the excessively large contact area to damage the printed circuit board 10 is also avoided.

The stackable card holder of the application forms the support bar 2215 which is in direct sliding contact with the printed circuit board 10 by protruding downwards at the bottom of the longitudinal arm 221 of the card holder 20, so that the upper and lower limiting of the card holder 20 is realized by pressing the shielding shell 30 from the top and supporting the printed circuit board 10 from the bottom, and the technical problem that the card holder 20 needs to be supported and held by bending inwards on the side wall 32 of the shielding shell 30 to thicken the card holder in the prior art can be avoided.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. The utility model provides a card holds in palm, includes the division board, be formed at the vertical arm of the horizontal both sides of division board, be formed at the tail arm of division board rear end, be formed at the preceding tip of division board front end and be formed at the cap of preceding tip front side, its characterized in that, vertical arm, tail arm and preceding tip are in the upper surface of division board is enclosed and is established and be formed with first appearance card space, vertical arm, tail arm and preceding tip are in the lower surface of division board is enclosed and is established and be formed with second, the third of arranging on longitudinal direction and hold the card space, the preceding tip includes that the back protrusion extends into first, the third of first, third appearance card space press from both sides card portion, vertical arm is located second holds card space position department and is equipped with the protruding second of going into second holds the card portion of pressing from both sides in the card space.

2. The card tray of claim 1, wherein the first card receiving space is a TF card slot, and the second and third card receiving spaces are SIM card slots.

3. The card holder as claimed in claim 2, wherein the partition plate is a metal plate including a partition plate body and a through hole formed through a front end of the partition plate body, and the longitudinal arm, the tail arm and the front end are plastic bodies injection-molded on an outer periphery of the partition plate body.

4. The card holder according to claim 3, wherein the first and third clipping portions are elastic structures extending backward into the first and third card accommodating spaces from upper and lower sides of the front end portion, respectively, and when the TF card or the SIM card is placed in the first and third card accommodating spaces, the first and third clipping portions apply elastic contact force to the TF card or the SIM card to keep the TF card and the SIM card from falling off when the TF card or the SIM card is turned over.

5. The card holder as claimed in claim 4, wherein the first clipping portion is located further back than the third clipping portion, and at least a portion of the SIM card in the third card accommodating space is vertically overlapped with the first clipping portion.

6. The card holder of claim 3, wherein one of said longitudinal arms is provided with a mounting opening at an inner side of said second receiving space, and said second clamping portion is mounted and fixed in said mounting opening.

7. The card holder of claim 6, wherein the partition body is provided with a notch at a position corresponding to the mounting opening, the mounting opening comprises a step portion and a mounting hole formed through the step portion along the notch, the second card-clamping portion comprises a base portion fixed in the mounting opening and an elastic strip body extending from the base portion into the second card-accommodating space, and the elastic strip body elastically abuts against an edge of a SIM card placed in the second card-accommodating space.

8. The card holder according to claim 7, wherein the second card-sandwiching portion further includes a relief portion provided on a lower side of the base portion to relief the stepped portion, and a fixed column portion formed to protrude from the lower side of the base portion and fixed in the mounting hole.

9. The card holder as claimed in claim 1, wherein a pair of said longitudinal arms are formed with a retaining groove at an upper outer edge thereof and a retaining wall formed at a front end of said retaining groove at a position of said front end portion, said longitudinal arms are formed with a retaining groove at a laterally outer side thereof, and said longitudinal arms are formed with a support bar protruding downward at a bottom thereof for supporting a printed circuit board.

10. A stacked card socket, comprising the card holder of any one of claims 1 to 9, two first terminal modules attached to a printed circuit board to correspond to the second and third card accommodating spaces, a shielding shell having a top wall and side walls, and a second terminal module disposed on the top wall of the shielding shell to correspond to the first card accommodating space, wherein the shielding shell and the second terminal module thereon are welded to the printed circuit board, and the first terminal module and the second terminal module are disposed opposite to each other and form a receiving space for inserting and extracting the card holder therebetween.

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