WO2012041012A1

WO2012041012A1 - Sc connector component having insertion error proof identification information and sc plug thereof

Info

Publication number: WO2012041012A1
Application number: PCT/CN2011/001636
Authority: WO
Inventors: 余永强; 韩兆春; 黄澄; 李卫可
Original assignee: 中航光电科技股份有限公司
Priority date: 2010-09-30
Filing date: 2011-09-28
Publication date: 2012-04-05
Also published as: CN201845104U

Abstract

An SC connector component having insertion error proof identification information and an SC plug thereof. A fixed housing (4) is fixedly covered on the front tip of the SC plug (1). An avoidance opening (11) for avoiding a clip on window is arranged on two opposite lateral faces of the fixed housing (4). A printed circuit board (2) is arranged on a lateral face adjacent or opposite to a lateral face having a protrusion key for positioning arranged thereon of the fixed housing (4) and of the SC plug (1). A plug information storage chip (6) is arranged on the printed circuit board (2). Pins of the plug information storage chip (6) are electrically connected respectively to conductive contacts on the printed circuit board (2). Arranged on an SC adaptor (7) are two flexible metal pieces that are electrically connected respectively to the conductive contacts on insertion. The flexible metal pieces are electrically connected to a signal input terminal of a system main board.

Description

SC connector assembly with anti-missing identification information and SC plug thereof

The present invention relates to an SC connector assembly with identification code preventing mis-insertion identification information that prevents the SC plug from being mis-inserted on an incompatible SC adapter, and to the SC plug of the connector assembly.

Background technique

In places where optical signals are transmitted by base stations, etc., it is sometimes necessary to plug a large number of optical connector plugs into the optical connector adapter of the device to transmit optical signals. There are two types of common standard optical connector assemblies.

The SC connector assembly includes the SC plug and the SC adapter, and the other is the SC component, including the SC plug and the SC adapter. The SC plug is square, and one side is provided with a positioning convex key, the front end of the positioning convex key is curved, the rear end is a plane, and the SC plug has a card on two sides adjacent to the side on which the positioning convex key is disposed. Connected to the window, a strip-shaped snap-in rib is disposed in the snap-in window, and the extending direction of the snap-on rib is perpendicular to the front-rear direction of the SC plug. Two latching buckles are symmetrically arranged in the plug opening of the SC adapter, and the inner end of the snap-in buckle is fixed in the plug-in opening, and the rear end of the snap-in buckle is overhanging at the port of the plug-in opening, the two cards The back of the back button is provided with a reverse buckle on the inner side of the rear end of the socket. When the plug is connected, the buckled buckle is clamped on the latching rib by the reverse buckle on the latch to realize the reliable insertion of the SC plug and the SC adapter. Hehe.

Since the standard SC plugs transmitting different signals have the same structural form, it is easy to confuse the optical connector plugs transmitting different signals during plugging, resulting in mis-insertion. Due to the large number of plugs, once the mis-insertion occurs, it is quite difficult to detect, and the wiring is increased. Difficulty.

Summary of the invention

It is an object of the present invention to provide an SC connector assembly with mis-insertion identification information to solve the problem that two or more SC connector assemblies in the prior art are easily inserted into each other during insertion, and the object of the present invention It is also provided to provide the SC plug of the SC connector assembly.

To achieve the above object, the SC connector assembly with the anti-missing identification information of the present invention adopts the following technical solutions: an SC connector assembly with anti-missing identification information, including an SC plug and an SC adapter.

1

Confirmation The SC adapter has a plug opening, and the plug opening is symmetrically disposed with two snap-backs that extend toward the open end, and the opposite sides of the SC plug are provided with a snap-on window, and the snap-in window has a snap-fit The card is connected to the rib, and the side of the SC plug adjacent to the side of the card-attaching window is provided with a positioning convex key, and the front end of the SC plug is provided with a fixed casing and a fixed casing. The corresponding two sides are provided with a escaping opening for escaping the carding window, and the printed circuit board is fixedly attached to the side of the fixed housing adjacent to or opposite to the side of the SC plug. There is a plug information storage chip, and the pins of the plug information storage chip are respectively electrically connected with the conductive contacts disposed on the printed board, and the SC adapter is provided with a metal elastic member electrically connected to the conductive contacts during the plugging, metal The elastic member is used to electrically connect to the signal input end of the system motherboard.

a strip-shaped gold finger is formed on the surface of the printed board opposite to the fixed housing, and the strip-shaped gold finger forms the conductive contact, and the metal elastic member is disposed on the plug-in opening and is inserted into the printed board. On the side wall.

The fixing housing and the side wall of the SC plug disposed with the positioning key are provided with a positioning card slot with an opening facing the rear end, and the front groove bottom of the positioning card slot is pressed against the front end of the positioning key, and the opening of the fixing shell is fixed. Two locking claws are respectively disposed at two sides, the front end of the locking claw is fixed at the front end of the fixed housing, the rear end of the locking claw is extended rearward, and the rear end of the locking claw has a snap connection The end of the rib is snapped into the fixed locking head, and the two locking claws disposed in one of the escaping openings have a space for the card to buckle and pass.

The opposite sides of the printed board have positioning notches disposed in pairs, and two of the pair of positioning notches are respectively located on two sides of the printed board, and the fixed shell is fixed on the side wall of the printed board The positioning protrusion is matched with the positioning notch, and the printed board is fixed on the fixed casing by hot pressing welding of the positioning protrusion.

The metal elastic member is fixed on the side wall of the plug-in and the printed board by the small-row insertion force, and the side wall of the plug-in opening and the printed board is provided with a small-sized plug-in. The metal elastic member is a metal elastic needle which is disposed in an angular shape, and one end of the metal elastic needle is inserted through the fixed passage provided by the small row and inserted into the small row plug, and the end of the metal elastic needle is inserted through the small row. It is used to electrically connect with the signal input end of the system main board, and the other end of the metal elastic pin is slidably disposed on the side wall of the plug opening and the through hole is opened. In the guiding groove communicating with the mouth, the through-notch is a stepped notch whose flare is outward, the stepped surface of the through-notch is matched with the edge of the inner end surface of the small-row insertion, and the small-row insertion is inserted through the strong-position positioning column provided at the edge thereof The strong assembly is fixed on the fixed casing, the guiding groove is located at the step surface of the through hole L4, and the portion where the metal elastic pin contacts the printed board is an arc convex toward the printed board.

The SC plug with the anti-missing identification information of the present invention adopts the following technical solutions:

An SC plug having anti-missing identification information, wherein the opposite sides of the SC plug are provided with a snap-on window, and the snap-in window has a snap-in rib for snap-fitting with the SC adapter, SC A positioning convex key is disposed on a side of the plug adjacent to a side of the mounting card window, and the front end fixing sleeve of the SC plug is provided with a fixing shell, and the corresponding side surfaces of the fixing housing are provided with a avoidance locking window The escaping opening of the fixed housing is adjacent to the side of the SC plug disposed adjacent to or opposite to the side of the positioning convex key, and the printed board is provided with a plug information storage chip, and the plug information storage chip is provided The pins are electrically connected to the conductive contacts provided on the printed board, respectively.

The printed board is disposed on a side of the fixed housing adjacent to a side of the SC plug on which the positioning protrusion is disposed, and the printed board extends to the front end of the fixed housing, and the front part of the printed board is provided with a avoidance The open slot of the card window.

The side wall of the fixed housing and the side of the SC pin provided with the positioning key is provided with a positioning card slot with an opening facing the rear end, and the front groove bottom of the positioning card slot is pressed against the front end of the positioning key to secure the housing. Two locking claws are respectively disposed at two sides of the mouth, the front end of the locking claw is fixed at the front end of the fixed housing, the rear end of the locking claw is extended rearward, and the rear end of the locking claw has a card The end of the connecting rib is engaged with the fixed locking head, and the two locking claws disposed in one of the avoiding openings have a space for the card to buckle and pass.

The opposite sides of the printed board have positioning notches disposed in pairs, and two of the pair of positioning notches are respectively located on two sides of the printed board, and the fixed shell is fixed on the side wall of the printed board a positioning protrusion corresponding to the positioning notch, and the printed board is fixed to the fixed housing by hot pressing welding of the positioning protrusion On.

The sc plug of the present invention is provided with a plug information storage chip through the printed board, and the two pins of the plug information storage chip are respectively electrically connected with the conductive contacts on the printed board, and the SC adapter is respectively provided with two plugs at the time of plugging The two metal elastic members electrically connected to the conductive contacts, the plug information in the plug information storage chip is input through the signal input end of the system main board through the conductive contact and the metal elastic member, and when the information is matched, the signal output end of the system main board outputs a signal, The indicator that is electrically connected to the signal output end of the system board is on, indicating that the plug is correct. On the contrary, the signal output of the system board does not output a signal, and the indicator does not light. This prevents the problem of interleaving each other when more than two SC connector components are present.

DRAWINGS

Figure 1 is a front elevational view showing an embodiment of a SC plug of the present invention;

Figure 2 is a plan view of Figure 1;

Figure 3 is a bottom view of Figure 1;

Figure 4 is a perspective view of an embodiment of the SC plug of the present invention;

Figure 5 is a front elevational view of the printed board with the plug information storage chip fixed in Figure 1;

Figure 6 is a plan view of Figure 5;

Figure 7 is a bottom view of Figure 5;

Figure 8 is a perspective view of the printed board with the plug information storage chip fixed in Figure 1;

Figure 9 is a front elevational view of the fixed housing of Figure 1;

Figure 10 is a left side view of Figure 9;

Figure 11 is a plan view of Figure 9;

Figure 12 is a bottom view of Figure 9;

Figure 13 is a perspective view of the fixed housing of Figure 1;

Figure 14 is a front elevational view of the SC adapter of the SC connector assembly of the present invention;

Figure 15 is a left side view of Figure 14;

Figure 16 is a right side view of Figure 14;

Figure 17 is a plan view of Figure 14; Figure 18 is a bottom view of Figure 14;

Figure 19 is a perspective view of the SC adapter of the SC connector assembly of the present invention;

Figure 20 is a cross-sectional view of the SC adapter of the SC connector assembly of the present invention at a central symmetry plane; Figure 21 is a cross-sectional view of the SC adapter of the SC connector assembly of the present invention; and Figure 22 is a SC of the present invention; Schematic diagram of the structure of the connector assembly before assembly;

Figure 23 is a perspective view showing the structure of the SC connector assembly of the present invention before assembly;

Figure 24 is a front elevational view of the empty adapter of the SC adapter and the conventional SC plug in the SC adapter;

Figure 25 is a left side view of Figure 24;

Figure 26 is a right side view of Figure 24;

Figure 27 is a plan view of Figure 24;

Figure 28 is a bottom view of Figure 24;

Figure 29 is a perspective view of the SC adapter in conjunction with a conventional SC plug in an empty adapter of the SC adapter.

detailed description

An embodiment of an SC connector assembly with mis-insertion identification information, as shown in FIGS. 1-21, the SC connector assembly includes an SC plug 1 and an SC adapter 7, and the SC plugs have opposite sides on opposite sides thereof. The window has a snap-in rib 10, and the plug-in opening of the SC adapter has two snap-in buckles arranged symmetrically. In the prior art, when the SC plug is inserted into the SC adapter, the buckle is buckled. It is located in the carding window and is clamped on the latching ribs to achieve reliable insertion of the SC plug and the SC adapter. In the prior art, the general SC connector is fixed in this manner. A side of the SC plug adjacent to the side on which the card is attached is provided with a positioning bead 5. As shown in FIG. 1 to FIG. 13, the front end of the SC plug 1 is sleeved with a fixed housing 4, and the four inner sides of the fixed housing 4 are matched with the four outer sides of the SC plug, and the fixed housing 4 and the SC plug are provided with a snap window. The side surfaces of the side fittings are provided with a relief opening 11 for avoiding the snap-in window, and the opening of the avoidance opening 11 faces the front end and extends to the front end surface of the fixed casing 4, so that the opening 11 is prevented from being entirely exposed to the outside. Fixed housing 4 and SC plug settings The side of the side of the convex key is provided with a positioning slot 23 for engaging with the positioning convex key. The opening of the positioning slot 23 faces the rear end and extends to the rear end surface of the fixed housing 4, and the slot of the front end of the positioning slot 23 is positioned. The bottom is a curved surface matching the front end of the positioning convex key 5. The front groove bottom of the positioning card slot 23 is press-fitted with the front end of the positioning convex key 5 to realize the rear end positioning of the fixed housing 4 on the SC plug 1. The two escape openings 11 of the fixed housing 4 are respectively provided with two locking claws 19, and the two locking claws 19 located in the same escape card opening are respectively located at two sides of the escape opening 11, and the locking claws are locked. The front end of the fixing member 4 is fixed to the front end of the fixed housing 4, and the rear end of the locking claw 19 is rearwardly extended. The rear end of the locking claw 19 is fixedly engaged with the end of the engaging rib 10. The lock head is locked on the latching rib 10 to prevent the fixed housing 4 from coming off the front end of the SC plug 1, so that the fixed housing 4 is positioned at the front end of the SC plug 1. There is a space between the two locking claws 19 disposed in one of the escape openings for the card to buckle down. One side of the fixed housing 4 is provided with a recess which is adjacent to the side of the SC plug 1 on which the positioning cam is provided, that is, the side is engaged with a side of the SC plug 1 which is provided with the snap window. The inner side of the groove is provided with a printed board 2, and the printed board 2 is closely attached to the bottom of the groove provided with the groove. A plug information storage chip 6 is provided on the surface of the printed board 2 opposite to the groove bottom on which the recess is provided. The printed board 2 extends to the front end of the fixed housing 4, and the front portion of the printed board 2 is provided with an opening groove 25 for avoiding the connection window, and the opening of the opening groove 25 faces the front portion and extends to the front end surface of the printed board. The groove bottom on which the groove is provided has a receiving notch (not shown) for accommodating the plug information storage chip 6, and the front portion for accommodating the notch communicates with the rear portion of the escape opening 11. The other surface of the printed board 2 opposite to the surface on which the plug information storage chip 6 is disposed is coated with two strip-shaped gold fingers 3, and the pins of the plug information storage chip 6 are electrically connected to the two strip-shaped gold fingers 3, respectively. The opposite sides of the printed board 2 have two pairs of semi-cylindrical positioning notches 21, one of which is on one side of the printed board 2 and the other on the other side of the printed board 2. Correspondingly, a semi-cylindrical positioning post 16 is formed at the groove wall of the groove, and the positioning post 16 extends out of the outer surface of the printed board 2, and is assembled by thermocompression bonding during assembly. The portion of the positioning stud extending beyond the surface of the printed board is deformed to fix the printed board 2 on the fixed housing 4. The front end of the fixed casing 4 is sleeved with a dust cover 12, and the inner cavity of the dust cover 12 is symmetrically disposed with a fixed inverted buckle 24 extending toward the port, and the fixed inverted buckle 24 is adjacent to the end of the dust cover 12 at the end of the dust cover 12 An undercut that is engaged with the middle of the snap rib 10 is provided. Before the SC plug is inserted into the SC adapter, it needs to be Remove the dust cover.

As shown in FIG. 14 to 21, the two ends of the SC adapter 7 are provided with a plug-in opening for accommodating the front end of the SC plug. The two plug-in openings and the plug-in opening have the same structure, and can be considered as having two identical connectors. They are integrally placed together at the respective non-open ends. A through hole is formed in a side wall of the plug-in opening which is matched with the printed board 2 when the plug-in opening is inserted, and the through-notch is a stepped notch which is flared outward, and the small-sized plug 20 is smallly fitted on the through-cut notch. The socket 20 is plate-shaped. The edge of the end face of the small row insert 20 is engaged with the stepped surface that penetrates the notch. Two metal elastic pins 9 are disposed on the inner end surface of the small row insert 20, and the metal elastic needles 9 are disposed in an angular shape, and one end of the metal elastic needle 9 is inserted into the fixed passage provided on the small row insert 20 and inserted by the small row. The outer end surface of the outer end surface 20 is pierced, and the metal elastic needle 9 is fixed to the small row insertion hole 20 by the cooperation with the fixed passage. The end of the metal bullet 9 that passes through the outer end surface of the small row plug 20 is set as a pin, and the pin is electrically connected to the signal input end of the system main board, and is transmitted to the signal input end of the system main board from the plug information storage chip. For information, set the SC adapter in the system. The other end of the metal bullet 9 is freely overhanging toward the inner end of the insertion opening. A guide groove communicating with the through-notch is provided in the side wall of the insertion opening at the stepped surface of the through-notch, and one end of the free overhang of the metal bullet 9 is slidably disposed in the guide groove. When the SC plug is plugged into the SC adapter, the gold finger on the printed board will squeeze the metal bullet. The free end of the metal bullet will slide in the guiding groove of the plug opening, and the angle of the metal bullet becomes larger. The pin will eventually be pressed into the guide slot to achieve the final insertion of the SC plug and the SC socket. The portion of the metal bullet that contacts the printed board is curved toward the printed board, so that even when the length of the metal clip is short, it can ensure reliable contact with the printed board. This arrangement of metal bullets is readily understood by those skilled in the art and is also readily accomplished. A dust plug 26 is provided at the plug opening of the SC adapter, and the dust plug 26 needs to be removed before the SC plug is inserted into the SC adapter.

An LED indicator is arranged on the system board, and the pin of the LED indicator is electrically connected to the output end of the system motherboard. When the correct SC plug is inserted into the SC adapter, the LED light is on, otherwise it is not lit.

The small row plug 20 is provided with a fixing protrusion near the edge of the inner end of the plug opening, and the fixing protrusion is provided with an inwardly extending strong positioning post 15 , and the side wall of the plug opening is provided with the strong positioning positioning column. The positioning hole is strongly installed in the positioning hole to fix the small row plug 20 to the fixed housing. In the small row The two side walls of the edge of the 20 are provided with a protruding fixing head, and a fixing notch strongly matched with the fixing head is disposed on the side wall of the through hole, and the fixing head and the fixing notch are strongly assembled and combined with the strong positioning positioning column and The strong fitting of the positioning holes fixes the small row of pins to the fixed housing.

A fixing post 8 is integrally provided on the side of the SC adapter 7 on which the small row plug is arranged. The fixing post 8 is used for fixing the SC adapter to the panel of the system. When assembling, the mounting hole is arranged on the panel of the system, and the fixing post 8 is arranged. The SC adapter is placed in the mounting hole and then deformed by thermal deformation to fix the end of the mounting post 8 to secure the SC adapter to the panel of the system.

An embodiment of an SC plug having anti-missing identification information, which is the SC plug of the above-mentioned Figures 1-13. An important feature of the SC plug is that a chip storing plug information is disposed on the plug. When the SC plug and the adapted SC adapter are plugged in, the information in the plug information storage chip passes through the strip of gold fingers of the printed board. The metal bullet is transmitted to the system board, and the system board analyzes the plug information to determine if the plug is plugged into the correct SC adapter.

The plug information storage chip of the above embodiment is disposed on the surface of the printed board that cooperates with the groove bottom of the groove, or may be disposed on the other surface of the printed board. At this time, the plug information storage chip may be provided with the printed board. At the back, a strip of gold fingers is placed at the front.

In the above embodiment, the metal elastic needle of the SC adapter passes through the insertion opening, and one end of the metal elastic needle can be directly fixed on the side wall of the insertion opening by welding or clamping, and then in the metal elastic needle. The fixed end is electrically connected to the wire or the conductive strip, and the wire or the conductive strip is embedded on the side wall of the plug opening.

In the above embodiment, the metal elastic member of the SC adapter is a metal elastic needle, and may be a metal elastic piece whose one end is fixed on the side wall of the insertion port and the other end is inwardly suspended.

The printed board of the above embodiment is fixed to the SC plug by a fixed casing, and can also be directly fixed to the side of the SC plug by bonding.

The indicator of the above embodiment is an LED indicator. Of course, the indicator can also be other types of indicators.

The indicator light in the above embodiment is directly set in the circuit of the system, and the LED light can also be set. On the SC adapter, and connect the LED lights into the circuit of the system.

The fixed housing of the above embodiment is configured by press-fitting the front groove bottom of the positioning card slot with the front end of the positioning convex key to realize the rear end positioning of the fixed housing on the SC plug. The front end of the fixed housing on the SC plug is achieved by the snap-fit of the locking jaw and the snap-fit rib. A rib can be disposed on the outer peripheral surface of the SC plug, and a corresponding positioning card slot is disposed on the inner peripheral wall of the fixed casing, and the rib is inserted into the positioning card slot by strong installation to realize the fixed casing on the SC plug. Anti-detachment limit. Or the positioning hole of the positioning convex key is arranged on the side wall of the fixed casing, and the positioning convex key is inserted into the positioning hole by the strong installation manner, thereby realizing the anti-detachment limit of the fixed casing on the SC plug.

The strips on the printed board of the above embodiment are provided with two strips of gold fingers, and the metal bullets corresponding to the strips of gold fingers are also two, the number of strips of gold fingers and the number of metal pins and the plug information. The number of pins of the memory chip is equal. According to the change of the number of pins of the plug information storage chip, the number of strip gold fingers and metal pins will be adjusted, not limited to two.

22 and FIG. 23, when information recognition is not required, an empty converter 14 as shown in FIGS. 24 to 29, a portion where the air converter 14 is engaged with the SC adapter, and a structure of the fixed casing may be disposed in the SC adapter. Similarly, the difference between the two is that a fixed claw 17 having one end integrally provided at the front end of the side of the empty converter and freely extending at the other end is provided on one side of the empty converter 14, and the fixed claw 17 is provided with The snap barb 22 for snapping into the gap provided by the SC adapter housing. In use, the fixed claw 17 fixes the empty converter in the SC adapter, and the ordinary SC plug is inserted into the empty converter. Plug in with the SC adapter. Therefore, it is possible to interchange with the conventional SC plug without changing the connection mode of the SC plug and the adapter. When there is no chip, you only need to install an empty converter in the adapter to connect the standard SC plug. The flat-time converter is installed in the adapter. When the SC plug is not pulled out, the empty converter cannot be removed. Only after the SC plug is pulled out can the inverter be removed. Remove the empty converter. It can also be known from this point that when information recognition is required, it is only necessary to provide a fixed housing with a printed board on a conventional SC plug to cooperate with an SC adapter having a metal elastic needle to realize information recognition, that is, There is no need to customize a special SC plug, only a normal SC plug is required, and the SC plug and the fixed housing can be replaced independently, and no overall replacement is required in the event of damage.

Claims

Claim

1. An SC connector assembly having anti-missing identification information, comprising an SC plug and an SC adapter, wherein the SC adapter has a plug opening, and the plug opening is symmetrically disposed with two snap-backs that extend toward the open end. A latching window is disposed on opposite sides of the SC plug, and the latching window has a latching rib that is engaged with the snap-in buckle, and the SC plug is positioned on a side adjacent to a side of the clip-connecting window. The convex key is characterized in that: the front end of the SC plug is fixedly sleeved with a fixed casing, and the corresponding two sides of the fixed casing are provided with an escape opening for avoiding the carding window, and the positioning of the fixed casing and the SC plug A printed board is disposed on an adjacent side or an opposite side of the convex key, and a plug information storage chip is disposed on the printed board, and the pin of the plug information storage chip and the conductive contact disposed on the printed board respectively The electrical connector, the SC adapter is provided with a metal elastic member that is electrically connected to the conductive contact at the time of plugging, and the metal elastic member is electrically connected to the signal input end of the system main board.

2. The SC connector assembly with anti-missing identification information according to claim 1, wherein: the surface of the printed board opposite to the fixed housing is coated with strip-shaped gold fingers, strip gold The finger forms the conductive contact, and the metal elastic member is disposed on the sidewall of the plug-in opening and the printed board.

3. The SC connector assembly with anti-missing identification information according to claim 1, wherein: the fixing housing is disposed on a side wall of the SC plug on which the side of the positioning button is disposed, and the opening is disposed toward the rear end. The front slot bottom of the positioning card slot is pressed against the front end of the positioning button, and two locking claws are respectively disposed at two sides of the relief opening of the fixed housing, and the front end of the locking claw is fixed to the fixed housing. The front end, the rear end of the locking claw is overhanging backward, and the rear end of the locking claw has a locking head fixedly engaged with the end of the locking rib, and the two locking claws disposed in one avoiding opening There is space for the card to pass through the buckle.

The SC connector assembly with the anti-missing identification information according to any one of claims 1 to 3, wherein: the opposite sides of the printed board have positioning recesses arranged in pairs, a pair Two positioning notches in the positioning notch are respectively located on two sides of the printed board, and the fixed housing fixes the printed board The side wall is provided with a positioning protrusion corresponding to the positioning notch, and the printed board is fixed on the fixed casing by thermocompression welding of the positioning protrusion.

5. The SC connector assembly with anti-missing identification information according to claim 1, wherein: the metal elastic member is fixed to the side of the plug-in connector and the printed board by a small row of plugs. On the wall, the side wall of the plug-in opening and the printed board are mated with a through-notch for assembling a small row of inserts, the metal elastic member is a metal bullet provided with an angle, and one end of the metal bullet passes through the small row The fixed passage that is inserted is disposed on the small row of inserts, and one end of the metal elastic needle that is inserted out of the small row is electrically connected to the signal input end of the system main board, and the other end of the metal elastic needle is slidably disposed on the side of the plugged opening In the guide groove formed in the wall and communicating with the through hole, the through hole is a stepped notch whose flare is outward, and the stepped surface of the through hole is matched with the edge of the inner end surface of the small row insertion, and the small row is inserted through the edge thereof The strong positioning positioning column is strongly fixed on the fixed casing, the guiding groove is located at the step surface of the through-notch, and the portion where the metal elastic pin contacts the printed board is an arc convex toward the printed board.

6. An SC plug having anti-missing identification information, wherein the opposite sides of the SC plug are provided with a snap window, and the snap window has a snap rib for snapping the card adapter with the SC adapter a positioning protrusion is disposed on a side of the SC plug adjacent to a side of the setting card window, wherein: the front end fixing sleeve of the SC plug is provided with a fixed housing, and the corresponding sides of the fixed housing are fixed. The escaping opening of the escaping window is arranged, and the printing plate is fixedly attached to the side of the fixed casing adjacent to or opposite to the side of the positioning pin of the SC plug, and the plug information storage chip is disposed on the printed board The pins of the plug information storage chip are electrically connected to the conductive contacts disposed on the printed board, respectively.

7. The SC plug with anti-missing identification information according to claim 6, wherein: the printed board is disposed on a side of the fixed housing adjacent to a side of the SC plug on which the positioning cam is disposed. Upper, the printed board extends to the front end of the fixed housing, and the front portion of the printed board is provided with an open slot for avoiding the snap-in window.

8. The SC plug according to claim 6, wherein: the surface of the printed board opposite to the fixed housing is coated with strip-shaped gold fingers, and the strip-shaped gold fingers are formed. The conductive contact, the metal elastic member is disposed on a sidewall of the plug-in opening and the printed board.

The SC plug with the anti-missing identification information according to claim 6, wherein: the fixed housing and the side wall of the SC plug on which the positioning key is disposed are provided with a positioning slot with an opening facing the rear end. The front groove bottom of the positioning card slot is pressed against the front end of the positioning key, and two locking claws are respectively disposed at two sides of the relief opening of the fixed casing, and the front end of the locking claw is fixed at the front end of the fixed casing. The rear end of the locking claw is extended rearward, and the rear end of the locking claw has a locking head fixedly engaged with the end of the locking rib, and is disposed between the two locking claws disposed in the escape opening The space for the card to pass through the buckle.

The SC plug with the anti-missing identification information according to any one of claims 6 to 9, wherein: the opposite sides of the printed board have positioning notches disposed in pairs, and a pair of positioning gaps The two positioning notches are respectively located on two sides of the printed board, and the side walls of the fixed printed board are provided with positioning protrusions corresponding to the positioning notches, and the printed board is hot pressed by the positioning protrusions. Attached to the fixed housing.