CN101615239B

CN101615239B - Card reader

Info

Publication number: CN101615239B
Application number: CN200810126524XA
Authority: CN
Inventors: 陈武雄; 廖世宏; 吴承安; 阙友健; 林志坚
Original assignee: QUANXIN CO Ltd
Current assignee: QUANXIN CO Ltd; Chant Sincere Co Ltd
Priority date: 2008-06-24
Filing date: 2008-06-24
Publication date: 2011-06-22
Anticipated expiration: 2028-06-24
Also published as: CN101615239A

Abstract

The invention relates to a card reader which comprises a seat body and an electric module, wherein the seat body comprises a hollow shell conforming to a USB plug type and a socket combined at the rear part of the hollow shell; a containing space for containing the electric module is formed in the hollow shell, and an inlet vertically communicated to the containing space is arranged on the socket; the electric module is a circuit plate provided with a USB type first connection point set, and the other side far from the first connection point set is provided with a second connection point set; a connector forming the vertical direction with the circuit plate is combined on the second connection point set, faces to the inlet of the seat body and forms the electric contact with a vertically inserted external electronic card; and the card reader has small structure and can be inserted by the external electronic card to form a vertical state so as to effectively utilize a butted space with an electronic device, thereby achieving the effects of wide applicability and better extensibility.

Description

Card reader

Technical field

The present invention relates to a kind of electric connector, particularly a kind of card reader.

Background technology

The modern science and technology progress also leads many electronic products constantly to innovate, progressive, and enter the digitized epoch, therefore digital sci-tech product is constantly weeded out the old and bring forth the new especially, digital television for example, digital sound, MP 3, digital camera, electronic dictionary, PDA or other electronic products etc., and in many digital products, normally remember by memory card, the access data, upgrade memory document etc., by card reader the data of memory card inside is read or does storage again, yet it is simple and easy for pursuing use, easy to carry, many electric equipment products are towards gently, thin, short, little direction is done design, therefore the relative necessary reduced volume of also feasible inner member must design more small-sized memory card charger product and use.

And at present on the market memory card is roughly multimedia card (MMC, Multi Media Card), compact flash memory card (CF, Compact Flash Card), smart media cards (SMC, Smart MediaCard), memory stick (MS, Memory Stick), Security Digital (SD) SD specifications such as (Secure DigitalMemory Card), and release the memory card that many volumes are littler, capacity is bigger successively, as mini safe digital card (Mini SD), mini flash cards (Trans Flash), miniature safe numerical digit memory card (MIRCO SD) etc.

In addition, card reader is a kind of interface between memory card and host computer, USB jack by host computer carries out the data transmission for card reader, the Card Reader function is read by host computer apace by the hot plug mode, yet card reader volume on the market is bigger at present, take too much space relatively, and carry inconvenience because of volume is excessive, the weight of also related raising card reader integral body, card reader can't directly be inserted on the host computer USB jack, can only additionally buy the USB line and connect, just can transmit, cause use cost to increase, cause host computer wire rod on every side more gradually various.

Moreover, the perforate mode of the USB jack on the general host computer housing is to follow the docking groove up and down of housing inner stacks formula electric connector to come corresponding the setting, it is adjacent one another are and close up and down that the USB jack is formed at surface of shell, storage facilities (as carry-on dish, card reader etc.) for the USB connecting portion inserts wherein, and general storage facilities is when being plugged on top USB jack, the volume that its below USB jack then is subjected to storage facilities stops, cause can't the peg graft problem of another storage facilities of below USB jack, make and offer two USB jacks a kind of storage facilities of once can only pegging graft.

Therefore, how to manage to solve above-mentioned existing defective, and develop a kind of tool USB connecting portion, can peg graft for the memory external card, and compact card reader, i.e. the direction of improvement that those skilled in the art study.

Summary of the invention

Fundamental purpose of the present invention is the defective that overcomes above-mentioned existing card reader, invents the card reader that a kind of practicality is extensive, volume is little, easy to carry.

Reach other purpose to achieve these goals, the invention provides a kind of card reader, include a pedestal and an electrical module, described pedestal includes a hollow housing and a plug socket, described hollow housing meets the USB plug pattern, and described plug socket is combined in described hollow housing rear, is provided with an accommodation space in the described hollow housing, described electrical module places described accommodation space, also offers the posting port of vertical connection at described accommodation space on the described plug socket; And

Described electrical module is provided with a circuit board, described circuit board is positioned in the described hollow housing, and described circuit board is provided with the first contact group that meets the USB pattern, and be provided with the second contact group in addition side away from the described first contact group, and be combined with and described circuit board connector in vertical direction on the described second contact group, described connector is respectively equipped with the terminal base with slot, and the described contact terminal set that is plugged on location in the described slot, and described contact terminal set be provided be positioned at that described slot compresses and with described circuit board on the welding end of the second contact set of contact, and described welding end end is provided with the contact jaw of a change-over terminal with the reverse elasticity beat of transferring out, and described contact jaw is that the hollow slots that is positioned at described slot one side connection is the elasticity beat, and this beat direction is right against the posting port insertion path of pedestal, one external electric subcard vertical direction is inserted described posting port, and is electrical with described connector and contacts.

Reach other purpose to achieve these goals, the present invention also provides a kind of card reader, include pedestal, electrical module and expanding device, described pedestal comprises a hollow housing, described hollow housing meets the USB plug pattern, and a plug socket is combined in the hollow housing rear, and is provided with an accommodation space in the described hollow housing, described electrical module places described accommodation space, offers the posting port of vertical connection at described accommodation space on plug socket;

Described electrical module is provided with a circuit board, described circuit board is positioned in the hollow housing, and described circuit board is provided with the first contact group that meets the USB pattern, and be provided with the second contact group in addition side away from the described first contact group, and be combined with and described circuit board connector in vertical direction on the described second contact group, described connector is provided with the terminal base of tool slot, and the contact terminal set that is plugged on location in the described slot, and described contact terminal set be provided be positioned at that described slot compresses and with described circuit board on the welding end of the second contact set of contact, and described welding end end is provided with the contact jaw of change-over terminal with the reverse elasticity beat of transferring out, and the hollow slots that described contact jaw is positioned at described slot one side connection is the elasticity beat, and this beat direction is right against the posting port of described pedestal and inserts the path, an external electric subcard vertical direction insert described place mouthful and be electrical with connector contact; And

Described expanding device is provided with an insulating support, described insulating support is combined in described circuit board bottom, and be formed with for the laterally inserted grafting space of described external electric subcard between described insulating support bottom and the described hollow housing internal face, and on described insulating support, be provided with the conducting terminal group, the welding end of described conducting terminal group one side electrically contacts on the described circuit board bottom surface contact, and stretches the contact jaw that the described external electrical card contact of conflicting is arranged in other side direction declivity of described conducting terminal group.

Description of drawings

Fig. 1 is a stereo appearance figure of the present invention;

Fig. 2 is a three-dimensional exploded view of the present invention;

Fig. 3 is the three-dimensional exploded view at another visual angle of the present invention;

Fig. 4 is a partial enlarged drawing of the present invention;

The stereo appearance figure of Fig. 5 during for plug-in card of the present invention;

Fig. 6 is the side cutaway view behind the plug-in card of the present invention;

Fig. 7 is the side cutaway view of another preferred embodiment of the present invention;

Side cutaway view when Fig. 8 uses for another preferred embodiment of the present invention;

Schematic perspective view when Fig. 9 uses for another preferred embodiment of the present invention;

Figure 10 is the three-dimensional exploded view of the another preferred embodiment of the present invention.

Description of reference numerals: 1-pedestal; The 11-hollow housing; The 121-opening; The 110-accommodation space; The 122-posting port; 111-interferes arm; 1221-blocking salient point; The 112-slide rail; 123-wears groove; The 113-buckling groove; The 124-chute; The 12-plug socket; The 125-through hole; The 2-electrical module; The 21-circuit board; The 2211-slot; The 211-first contact group; The 2212-hollow slots; The 212-second contact group; The 2213-protuberance; The 213-circular hole; The 222-contact terminal set; The 214-open-work; The 2221-welding end; The 22-connector; The 2222-change-over terminal; The 221-terminal base; The 2223-contact jaw; The 3-expanding device; 30-grafting space; The 321-welding end; The 31-insulating support; The 322-contact jaw; The protruding button of 311-; 33-moves back fixture block; Horizontal of 312-; The 331-slide block; 32-conducting terminal group; The 4-electronic cards; The 41-contact; The 5-electronic installation; The 51-slot; The 52-connector.

Embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.

See also Fig. 1 to shown in Figure 4, be the three-dimensional exploded view and the partial enlarged drawing at stereo appearance figure of the present invention, three-dimensional exploded view, another visual angle, by knowing understanding among the figure, card reader of the present invention includes pedestal 1 and electrical module 2, wherein:

This pedestal 1 includes the hollow housing 11 that meets the USB plug pattern, and the plug socket 12 that is combined in hollow housing 11 rears, and be formed with the accommodation space 110 of accommodating electrical module 2 in the hollow housing 11, offer the opening 121 that surrounds hollow housing 11 rears in plug socket 12 1 sides in addition, and on plug socket 12, also offer the posting port 122 of vertical connection in opening 121.

This electrical module 2 is provided with the circuit board 21 in the hollow housing 11 that is positioned at pedestal 1, and circuit board 21 is provided with the first contact group 211 that meets the USB pattern, and be provided with the second contact group 212 in addition side away from the first contact group 211, and be combined with on the second contact group 212 and circuit board 21 connector 22 in vertical direction, and connector 22 is respectively equipped with the terminal base 221 of tool slot 2211, and can peg graft and be positioned at contact terminal set 222 in the slot 2211, and being provided with vertical configuration, contact terminal set 222 is applied in the welding end 2221 that compresses in the slot 2211, and but welding end 2221 ends are provided with the contact jaw 2223 of change-over terminal 2222 with the reverse elasticity beat of transferring out, and the hollow slots 2212 that contact jaw 2223 is positioned at the connection of slot 2,211 one sides is the elasticity beat, and this beat direction is right against the insertion path of the posting port 122 of pedestal 1.

And above-mentioned electrical module 2 bottoms are further for being combined with the expanding device 3 of tool insulating support 31, and insulating support 31 is provided with conducting terminal group 32, and conducting terminal group 32 1 side welding ends 321 are on the electrical contact circuit plate 21 bottom surface contacts, and conducting terminal group 32 in addition the side direction declivities stretch a contact jaw 322 arranged, contact jaw 322 is positioned at grafting space 30, the combination of expanding device 3 and electrical module 2 is, butt up against on the circuit board 21 on the corresponding open-work 214 that is provided with and the location in that a plurality of protruding buttons 311 are set on the expanding device 3, and protruding button 311 can be outside convex in insulating support 31 both sides and is enclosed in circuit board 21 both sides, circuit board 21 and insulating support 31 is the structure of strong fix.

When above-mentioned member in when assembling, for the welding end 2221 of the contact terminal set 222 that makes connector 22 is inserted in the slot 2211 of terminal base 221, the contact jaw 2223 of contact terminal set 222 is positioned in the hollow slots 2212, the protuberance 2213 of terminal base 221 can be inserted in the circular hole 213 of circuit board 21, make connector 22 firm standing upright on circuit board 21, and the second contact group 212 that makes circuit board 21 is electrical with the welding end 2221 of the contact terminal set 222 of connector 22 and contacts, so, the insulating support 31 of expanding device 3 just can be installed in circuit board 21 bottoms, the protruding button 311 of insulating support 31 is butted up against in the open-work 214 of circuit board 21, circuit board 21 and insulating support 31 front side correspondences can be inserted in the accommodation space 110 of hollow housing 11 of pedestal 1, make the protruding button 311 of insulating support 31 and horizontal 312 be docked at hollow housing 11 correspondences and cut open the slide rail of establishing 112, engaging in the buckling groove 113, can make circuit board 21 and insulating support 31 be positioned in the accommodation space 110 of hollow housing 11, and the space 30 of pegging graft up and down will be separated in the accommodation space 110, just the interference arm 111 that protrudes out with hollow housing 11 rears is aimed at the opening 121 that inserts plug socket 12 afterwards, make and interfere arm 111 contrapositions to be inserted in correspondingly on opening 121 internal faces to cut open wearing in the groove 123 and compressing of establishing, originally be positioned at spacing the butting up against in the chute 124 of wearing groove 123 belows of protruding button 311 meetings of the insulating support 31 on the slide rail 112 simultaneously, so that but plug socket 12 strong fixs are at hollow housing 11 rears, and the opening 121 of plug socket 12 is enclosed on the outer ring surface at hollow housing 11 rears, make the first contact group 211 of the circuit board 21 of internal electric module 2 be positioned at the place ahead of the accommodation space 110 of hollow housing 11, rear connector 22 then is positioned in the insertion path near the posting port 122 of plug socket 12, and snap in for moving back the slide block 331 that is convexly equipped with on the fixture block 33 offering through hole 125 on the plug socket 12, make the slide block 331 that moves back fixture block 33 be positioned in the plug socket 12 and approach in the grafting space 30 of insulating support 31 belows, so, can finish the configured in one piece of card reader of the present invention.

Please continue to consult Fig. 2, Fig. 5, Fig. 6 shows, be three-dimensional exploded view of the present invention, stereo appearance figure during plug-in card and the side cutaway view behind the plug-in card, find out by knowing shown in the figure, card reader of the present invention can be pegged graft for two electronic cards 4 and be used, can be vertically in the posting port 122 of aiming at the plug socket 12 that inserts pedestal 1 with first electronic cards 4, make the conflict contact jaw 2223 of contact terminal set 222 of connector 22 of the contact 41 of electronic cards 4, and contact jaw 2223 can be in the hollow slots 2212 of terminal base 221 the elasticity beat, and effectively support in electronic cards 4 on contact 41, and posting port 122 inwall both sides convex with and can support and the blocking salient point 1221 of buckle electronic cards 4 both sides, but making electronic cards 4 strong fixs be excellent electrical property with contact terminal set 222 in posting port 122 contacts, and can be with second electronic cards 4 level to aiming at hollow housing 11 front openings of inserting pedestal 1, making electronic cards 4 be pushed into the following socket of expanding device 3 in hollow housing 11 in regular turn connects in the space 30, so that contact 41 contrapositions of electronic cards 4 touch the contact jaw 322 of the conducting terminal group 32 on the insulating support 31, can make in the hollow housing 11 of pedestal 1 and accommodate an electronic cards 4, and also accommodate an electronic cards 4 in the plug socket 12 of pedestal 1, reaching to peg graft simultaneously accommodates the card reader that two electronic cards 4 are used.

In the time of if the electronic cards 4 of pegging graft on the plug socket 12 of pedestal 1 will being extracted, need only impose acting force upwards extracts out in electronic cards 4 both sides, can make electronic cards 4 both sides break away from the buckle that supports of blocking salient point 1221 in the posting port 122, and the contact jaw 2223 that the contact 41 of power supply subcard 4 breaks away from the contact terminal set 222 of posting port 122 female connectors 22 supports, and electronic cards 4 can be extracted outside the posting port 122 of plug socket 12; When other electronic cards 4 in the accommodation space 110 of the hollow housing 11 of pedestal 1 is wanted to extract, need only promote towards moving back the card direction by the fixture block 33 that moves back on the plug socket 12 of pedestal 1, the slide block 331 that moves back fixture block 33 is slided in the through hole 125 of plug socket 12, and pushing and pressing are positioned at grafting space 30 electronic cards, 4 front ends of insulating support 31 belows, electronic cards 4 rear sides are exposed outside hollow housing 11 front openings, and electronic cards 4 is conveniently taken and is extracted out outside the accommodation space 110 of hollow housing 11.

Therefore, above-mentioned explanation connector 22 is arranged on circuit board 21 upper surfaces and locatees, make posting port 122 correspondences of the plug socket 12 of pedestal 1 be opened in 4 insertions of top power supply subcard, yet, structural design of the present invention also can further be arranged on connector 22 circuit board 21 lower surfaces location, make posting port 122 correspondences of the plug socket 12 of pedestal 1 be opened in 4 insertions of below power supply subcard, and convex with by posting port 122 inwall both sides and can support and the blocking salient point 1221 of buckle electronic cards 4 both sides, electronic cards 4 be inserted to below during posting port 122, but strong fix does not drop (as Fig. 2, shown in Figure 7).

Moreover, see also Fig. 2, Fig. 8, shown in Figure 9, when card reader of the present invention is plugged to USB pattern slot 51 uses of external electronic 5, hollow housing 11 the place aheads of pedestal 1 can be aimed at and insert USB pattern slot 51, make USB pattern slot 51 interior USB connector 52 be electric connection with circuit board 21 first contact groups 211, can make the data of the electronic cards 4 that connects in the pedestal 1 transfer to external electronic 5, or the data of external electronic 5 is transferred to electronic cards 4.

Be inserted in by electronic cards 4 in the top posting port 122 of plug socket 12, pedestal 1 and electronic cards 4 can be presented

Shape localization is located in the top of external electronic 5 USB pattern slot 51, and the below USB pattern slot 51 that is positioned at external electronic 5 then can be formed at 4 insertions of below power supply subcard by the posting port 122 of aforementioned plug socket 12 and be

Shape is inserted the location, make electronic installation 5 on, the effect that below USB pattern slot 51 provides two card reader to peg graft and use simultaneously, yet, this grafting use-pattern also is the user mode of a kind of preferred embodiment of the present invention, it also can only use electronic cards 4 perpendicular to top or the electronic cards 4 vertical card reader that place the below, with the electronic product of outside any tool USB connecting portion together be plugged to electronic installation 5 on, use in the below USB pattern slot 51, simple and easy modification of this kind and equivalent structure change, to reach the effect of same equivalent, all should in like manner be contained in the claim of the present invention.

Moreover, the structural design of the plug socket 12 by being combined in hollow housing 11 rears, power supply subcard 4 is pegged graft and is used above or below the posting port 122 of plug socket 12 can being formed on, so, this plug socket 12 itself only needs same mould die sinking manufacturing to form, and when plug socket 12 is done assembling with hollow housing 11, above or below can the posting port 122 of plug socket 12 being formed on by modular assembling mode, and the connector 2 of the electrical module 2 in hollow housing 11 also can link setting at circuit board 21 upper surfaces or lower surface, reaches applicability effect widely.

And the electronic cards 4 on the above-mentioned card reader can be minisize memory card (CF), saves digital card (SD) from damage, the data of mini SD memory card, dexterous media card patterns such as (SM) is carried out transmitted in both directions (read or store); In addition, electronic installation 5 can be desktop computer, notebook computer, individual palm PC (PDA) or multifunctional paper feeding machine.

And the hollow housing 11 of the pedestal 1 of card reader can utilize the plastic cement ejaculation one-body molded, and the first contact group 211 of the circuit board 21 of collocation electrical module 2 is formed the connector (can be public plug or female plug seat) of USB pattern, make the plug socket 12 at rear offer the posting port 122 of vertically locating again to 4 insertions of power supply subcard, formed the volume of light, thin, short, little card reader integral body, the miniaturization Design theory that meets electronic product, and have and be convenient for carrying, use, the card reader that does not take up room.

See also shown in Figure 10, three-dimensional exploded view for the another preferred embodiment of the present invention, find out by knowing shown in the figure, card reader of the present invention can only contain the circuit board 21 of electrical module 2 in the plug socket 12 at the hollow housing 11 of pedestal 1 and rear, and circuit board 21 is provided with the first contact group 211 that meets the USB pattern, and be provided with the second contact group 212 in addition side away from the first contact group 211, and be combined with on the second contact group 212 and circuit board 21 connector 22 in vertical direction, and connector 22 is respectively equipped with the terminal base 221 of tool slot 2211, and can peg graft and be positioned at contact terminal set 222 in the slot 2211, and these contact terminal set 222 contact jaws 2223 beat contact positions are the posting port 122 insertion paths that are aligned with plug socket 12, when external electric subcard 4 is vertically in aiming at insertion posting port 122 (as shown in Figure 6), can make the conflict contact jaw 2223 of contact terminal set 222 of connector 22 of the contact 41 of electronic cards 4, and effectively be held on the contact 41 of electronic cards 4, but making electronic cards 4 strong fixs be excellent electrical property with contact terminal set 222 in posting port 122 contacts, the card reader rear that reaches the USB plug pattern is provided with the vertically structural design of plug-in card effect, has the miniaturization effect and can effectively utilize card reader and the space of electronic installation to connecting.

The card reader of the invention described above has following advantage when reality is used:

1. card reader is provided with the hollow housing 11 of USB pattern in pedestal 1 one sides, and 21 correspondences of inner electrical module 2 circuit boards are provided with the first contact group 211 that meets the USB pattern, pass through again the plug socket 12 of hollow housing 11 rears institute combination, supply outside electronic cards 4 vertically to be plugged in the posting port 122 and be electrical contact with circuit board 21 rear connectors 22, so that the present invention has the card reader structure of miniaturization, and can peg graft for outside electronic cards 4 and effectively utilize and 5 pairs of spaces that connect of electronic installation in vertical state, reach that applicability is extensive, the better effect of extendibility.

2. be combined with the expanding device 3 of tool insulating support 31 below the circuit board 21 of card reader in hollow housing 11, and insulating support 31 is in the hollow housing 11 interior grafting spaces 30 that can insert electronic cards 4 that are formed with respectively, and the conducting end subgroup 32 that can be with the contact 41 of electronic cards 4 electrical contact, the characteristic that makes hollow housing 11 itself meet the USB plug pattern and can take in electronic cards 4 has the space that effectively utilizes card reader, dwindles the volume of card reader and the effect that is convenient for carrying.

In sum, card reader of the present invention can reach its effect and purpose in use really, and the present invention really is the research and development creation of a practicality excellence, meets the application important document of patent of invention, files an application in accordance with the law.

More than explanation is for the purpose of the present invention just illustrative, and nonrestrictive, those of ordinary skills understand; in the situation that does not break away from the spirit and scope that following claims limit, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.

Claims

1. a card reader is characterized in that, includes a pedestal and an electrical module,

Described pedestal includes a hollow housing and a plug socket, described hollow housing meets the USB plug pattern, described plug socket is combined in described hollow housing rear, be provided with an accommodation space in the described hollow housing, described electrical module places described accommodation space, also offers the posting port of vertical connection at described accommodation space on the described plug socket; And

Described electrical module is provided with a circuit board, described circuit board is positioned in the described hollow housing, and described circuit board is provided with the first contact group that meets the USB pattern, and be provided with the second contact group in addition side away from the described first contact group, and be combined with and described circuit board connector in vertical direction on the described second contact group, described connector is respectively equipped with the terminal base with slot, and the contact terminal set that is plugged on location in the described slot, and described contact terminal set be provided be positioned at that described slot compresses and with described circuit board on the welding end of the second contact set of contact, and described welding end end is provided with the contact jaw of a change-over terminal with the reverse elasticity beat of transferring out, and described contact jaw is that the hollow slots that is positioned at described slot one side connection is the elasticity beat, and this beat direction is right against the posting port insertion path of pedestal, one external electric subcard vertical direction is inserted described posting port, and is electrical with described connector and contacts.

2. card reader according to claim 1 is characterized in that, described external electric subcard is plugged in the described posting port from top to bottom, and described external electric subcard docks with the connector of described electrical module.

3. card reader according to claim 1 is characterized in that, described external electric subcard is plugged in the described posting port of offering the below from bottom to top, and described external electric subcard docks with the connector of described electrical module.

4. card reader according to claim 1 is characterized in that, the posting port inwall both sides of described plug socket convex with the blocking salient point, and described blocking salient point supports the also both sides of the described external electric subcard of buckle.

5. card reader according to claim 1, it is characterized in that, described plug socket one side offers an opening, described opening surrounds described hollow housing rear, and described opening internal face is provided with one and wears groove, and the described groove of wearing inserts the location for a corresponding interference arm that protrudes out at described hollow housing rear.

6. card reader according to claim 1 is characterized in that, the connector of described electrical module is arranged on described circuit board upper surface and opposes for the external electric subcard and connect.

7. card reader according to claim 1 is characterized in that, the connector of described electrical module is arranged on described circuit board lower surface and opposes for the external electric subcard and connect.

8. card reader according to claim 1 is characterized in that described terminal base is provided with protuberance, and described circuit board is provided with circular hole, the corresponding engaging butt joint with described circular hole of described protuberance.

9. a card reader is characterized in that, includes a pedestal, an electrical module and an expanding device,

Described pedestal comprises a hollow housing, described hollow housing meets the USB plug pattern, one plug socket is combined in the hollow housing rear, and be provided with an accommodation space in the described hollow housing, described electrical module places described accommodation space, offers the posting port of vertical connection at described accommodation space on plug socket;

Described electrical module is provided with a circuit board, described circuit board is positioned in the hollow housing, and described circuit board is provided with the first contact group that meets the USB pattern, and be provided with the second contact group in addition side away from the described first contact group, and be combined with and described circuit board connector in vertical direction on the described second contact group, described connector is provided with the terminal base of tool slot, and the contact terminal set that is plugged on location in the described slot, and described contact terminal set be provided be positioned at that described slot compresses and with described circuit board on the welding end of the second contact set of contact, and described welding end end is provided with the contact jaw of change-over terminal with the reverse elasticity beat of transferring out, and the hollow slots that described contact jaw is positioned at described slot one side connection is the elasticity beat, and this beat direction is right against the posting port insertion path of described pedestal, and an external electric subcard vertical direction is inserted described posting port and is electrical with connector and contacts; And

10. card reader according to claim 9 is characterized in that, described external electric subcard is plugged in the described posting port from top to bottom, and described external electric subcard docks with the connector of described electrical module.

11. card reader according to claim 9 is characterized in that, described external electric subcard is plugged in the described posting port from bottom to top, and described external electric subcard docks with the connector of described electrical module.

12. card reader according to claim 9 is characterized in that, the posting port inwall both sides of described plug socket convex with the blocking salient point, and described blocking salient point supports the also both sides of the described external electric subcard of buckle.

13. card reader according to claim 9, it is characterized in that, described plug socket one side offers an opening, described opening surrounds the rear of described hollow housing, and described opening internal face is provided with one and wears groove, and the described groove of wearing inserts the location for the corresponding interference arm that is protruded out at described hollow housing rear.

14. card reader according to claim 9 is characterized in that, the connector of described electrical module is arranged on described circuit board upper surface and opposes for described external electric subcard and connect.

15. card reader according to claim 9 is characterized in that, the connector of described electrical module is arranged on described circuit board lower surface and opposes for described external electric subcard and connect.

16. card reader according to claim 9 is characterized in that, described terminal base is provided with protuberance, and described circuit board is provided with circular hole, the corresponding engaging butt joint with described circular hole of described protuberance.

17. card reader according to claim 9 is characterized in that, described expanding device is provided with on described plug socket and moves back fixture block, and described moving back convexes with the slide block that is positioned at the described external electric subcard front end of described plug socket pushing and pressing on the fixture block.

18. card reader according to claim 9 is characterized in that, described expanding device is provided with protruding button, and described circuit board is provided with open-work, and described protruding button docks the location mutually with described open-work.