CN102709726A

CN102709726A - Electric connector capable of pressing cable and assembly of electric connector

Info

Publication number: CN102709726A
Application number: CN2012101731749A
Authority: CN
Inventors: 张星
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2012-05-30
Filing date: 2012-05-30
Publication date: 2012-10-03
Anticipated expiration: 2032-05-30
Also published as: CN102709726B

Abstract

The invention relates to an electric connector capable of pressing a cable. The electric connector comprises a shell and electric conduction plates, wherein the electric conduction plates are provided with electric conduction bands, the electric conduction bands are provided with contact parts which are bent and raised, the front end of the shell is provided with inserting tongues, the electric conduction plates are fixedly arranged on the corresponding inserting tongues, the inserting tongues are provided with limit blocks, the direction of the limit blocks on the inserting tongues is consistent with the raised direction of the electric conduction bands on the inserting tongues, and the distance between one sides of the limit blocks deviated from the corresponding inserting tongues and the inserting tongues is less than that between the top parts of the contact parts and the corresponding inserting tongues; and the shell is formed by fastening a base and a cover plate up and down, the electric conduction plates are pressed and fixed between the base and the cover plate of the shell, the rear ends of the electric conduction plates are provided with a line pressing sleeve, the line pressing sleeve is covered between the base and the cover plate of the shell, the compression amount of the electric conduction bands can be limited through the limit blocks, thus the compression amount of the electric conduction bands can be preset on the premise that the limit blocks are in reliable contact with a contact piece of an adaptive connector, the problem of fatigue deformation of the electric conduction bands is prevented from happening, and the problem that the electric conduction bands are easy in fatigue deformation during a work process is solved.

Description

But a kind of electric connector of crimping cable and assembly thereof

Technical field

The present invention relates to electric connector field, but especially a kind of electric connector of crimping cable and assembly thereof.

Background technology

Conductive strips are a kind of contacts comparatively common in the electric connector; Be all to record relevant technology in 022253334.2,2007201483866,2005200010512,2006200029547 and 2008201380525 etc. the Chinese patent like the patent No.; As its name suggests, it is banded that conductive strips are, the contact site that has a convexity between its two ends; Contact site is used for when the electric connector work of correspondence, electrically contacting with the corresponding contact of intermateable connector; Contact site with process that intermateable connector contacts in elastic deformation takes place, thereby hold out against with it the electrically contact of contact, guarantee the reliability of contact; Present electric connector wherein; Conductive strips all are to use as the hole contact, promptly are assemblied in the jack of housing of corresponding electric connector and are laid with around the center line of jack a plurality of, and this has just caused some problems; At first be that the amount of elastic deformation of conductive strips when electrically contacting with adaptive contact is difficult for controlling; If amount of elastic deformation is too small, then very easily cause the appearance of the phenomenon of loose contact, reduce the reliability of circuit; In addition; Because conductive strips also need be born the effect of the spacing contact that cooperates with it to a certain extent, the swing deflection of the contact that promptly prevents to cooperate with it, this also makes too small can't the meeting the demands of amount of elastic deformation of conductive strips more to a certain extent; Therefore; General design bigger of the amount of elastic deformation of conductive strips, the pull out force that this is required when then one side can increase the electric connector separation can cause the fatigue deformation of conductive strips on the other hand; Cause it to reset, this kind situation also can cause the generation of the problem of loose contact.In addition, the wiring technology to conductive strips in the prior art is also extremely complicated, has the inefficient problem of wiring.

Summary of the invention

But the object of the present invention is to provide a kind of electric connector of crimping cable, to solve the conductive strips problem of fatiguability distortion in the course of the work.

Simultaneously, but the present invention also aims to provide the electric coupler component of the electric connector that uses above-mentioned crimping cable.

In order to address the above problem; But the electric connector of crimping cable of the present invention adopts following technical scheme: but the electric connector of crimping cable; Comprise housing and conducting strip; Housing is inserted terminal with the front end; Conducting strip is provided with the conductive strips that extend along fore-and-aft direction; Have being used for and contact site that the contact of intermateable connector electrically contact of bent ridge between the rear and front end of conductive strips, the front end of said housing is provided with and is used for the tongue of pegging graft with intermateable connector, and said conducting strip is installed on the tongue of correspondence; The guide vane end stop of the amount of elastic deformation when tongue is provided with and is used to limit corresponding conductive strips and pegs graft with intermateable connector, the guide vane end stop on the said tongue and conductive strips on being located at this tongue swell a side and the distance between the tongue that the identical and guide vane end stop of direction deviates from corresponding tongue less than the distance between the top of contact site and the corresponding tongue; Said housing is fastened up and down by base and cover plate and forms; In base and the cover plate at least one is provided with said tongue; Said conducting strip is press-fited between the base and cover plate that is fixed on housing, and the rear end of conducting strip has the line ball cover, and the line ball cover is located between the base plate and cover plate of housing.

Be provided with between the cover plate of said housing and the base and be used for snap close that the two is stuck.

Said housing is provided with the locating piece that is used to prevent the conducting strip play.

Housing is provided with the bullet pawl; Said bullet pawl is installed on the housing through the elasticity wall that is located between its two ends; The front end that plays pawl overhangs forward and has and is used for the claw of joining with the intermateable connector card, and said claw plays pawl and constitutes near the projection on the side of housing by being located at; The rear end that plays pawl has confession and pushes so that the open press section of front end.

Said conducting strip has at least two, and the contact site of one conductive strips in the two adjacent conducting strips raises up, and the contact site of another conductive strips is to lower convexity.

Electric coupler component of the present invention adopts following technical scheme: electric coupler component; Plug and socket by with the front end being inserted terminal separately constitutes; Plug comprises plug casing and plug contact; Socket comprises Socket casing, and Socket casing has the grafting passage that supplies the plug insertion and in the grafting passage, is provided with the socket contact, and the plug contact is a conducting strip; Conducting strip is provided with the conductive strips that extend along fore-and-aft direction; The contact site that electrically contacts with the socket contact of being used for that has bent ridge between the rear and front end of conductive strips, the front end of said plug casing are provided with and are used for the tongue of pegging graft with socket, and conducting strip is installed on the corresponding tongue; The guide vane end stop of the amount of elastic deformation when tongue is provided with and is used to limit corresponding conductive strips and pegs graft with socket, the guide vane end stop on the said tongue and conductive strips on being located at this tongue swell a side and the distance between the tongue that the identical and guide vane end stop of direction deviates from corresponding tongue less than the distance between the top of contact site and the corresponding tongue; Said plug casing is fastened up and down by base and cover plate and forms; In base and the cover plate at least one is provided with said tongue; Said conducting strip is press-fited between the base and cover plate that is fixed on plug casing; The rear end of conducting strip has the line ball cover, and the line ball cover is located between the base plate and cover plate of plug casing.

Be provided with between the cover plate of said plug casing and the base and be used for snap close that the two is stuck.

Institute's plug casing is provided with the locating piece that is used to prevent the conducting strip play.

Plug casing is provided with the bullet pawl; Said bullet pawl is installed on the plug casing through the elasticity wall that is located between its two ends; The front end that plays pawl overhangs forward and has and is used for the claw of joining with the socket card, and said claw plays pawl and constitutes near the projection on the side of plug casing by being located at; The rear end that plays pawl has confession and pushes so that the open press section of front end.

Because but the electric connector of crimping cable of the present invention is located at its conductive strips on one conducting strip; And conducting strip is located on the tongue of housing front end; Tongue is provided with described guide vane end stop, and guide vane end stop deviates from a side and the distance between the housing of housing less than the top of contact site and the distance between the housing, therefore; In the process of using; When this electric connector and intermateable connector grafting, can limit the decrement of conductive strips through said guide vane end stop, thereby can under the reliable prerequisite that contacts of its contact, preset the decrement of conductive strips with intermateable connector; Prevent the generation of the problem of conductive strips fatigue deformation, solved the conductive strips problem of fatiguability distortion in the course of the work; In addition, the pull out force in the time of also can this electric connector being separated with intermateable connector the compression quantitative limitation of conductive strips is controlled in the reasonable range, solves the big problem of pull out force of its electric connector; In addition, housing is made as cover plate and base fastens the split-type structural that forms and the line ball cover is set in the rear end of conducting strip, thus can be at applicable situation dismounting housing easily, and then come the crimping lead with the line ball cover, realize on-the-spot fast-wiring.

Further, locating piece can prevent that conducting strip from the process of work play taking place, thus the generation of the problem of the loose contact of stopping to cause by the conducting strip play; Play pawl and can realize the direct inserting and drawing between this electric connector and the intermateable connector, efficient and convenient, make the occasion that this electric connector is applicable to needs frequent plug; A plurality of conducting strips and satisfy the demand to different through-put powers raise up the contact site of one conductive strips in the two adjacent conducting strips, the contact site of another conductive strips to lower convexity can make this electric connector stressed evenly, plug soft.

Description of drawings

But Fig. 1 is the structural representation of embodiment 1 of the electric connector of crimping cable of the present invention;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the right view of Fig. 1;

But Fig. 5 is the exploded view of embodiment 1 of the electric connector of crimping cable of the present invention;

Fig. 6 is the structural representation of plug of the embodiment 1 of electric coupler component of the present invention;

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is the left view of Fig. 6;

Fig. 9 is the right view of Fig. 6;

Figure 10 is the exploded view of plug of the embodiment 1 of electric coupler component of the present invention;

Figure 11 is the structural representation of socket of the embodiment 1 of electric coupler component of the present invention;

Figure 12 is the right view (band is analysed and observe) of Figure 11.

Embodiment

But the embodiment 1 of the electric connector of crimping cable of the present invention, shown in Fig. 1-5, this electric connector is inserted terminal with the front end; The housing that comprises insulation, housing are fastened up and down by cover plate 11 and base 12 and form, cover plate 11 and base 12 when fastening at first through being located at the snap close fastening between the two; The structure of snap close and operation principle are prior art, will not give unnecessary details here, and cover plate and base are further fixing through screw 13 again after the preliminary locking of snap close; Be provided with the tongue 14 that extends forward in front end separately on cover plate 11 and the base 12; Be set with the right setting of 15, two conducting strip one the first from left of conducting strip on the tongue on cover plate 11 and the base 12 respectively, the front end place of conducting strip 15; The part that promptly is positioned on the corresponding tongue is provided with conductive strips 15-1; The contact site that conductive strips 15-1 extends and between the rear and front end, has bent ridge along fore-and-aft direction, contact site is used for when this electric connector is pegged graft with intermateable connector, contacting with the contact of intermateable connector, thereby accomplishes the conveying of electric energy; The contact site that wherein is positioned at the conductive strips on the tongue of cover plate 11 front ends is protuberance upwards; The conductive strips that are positioned on the tongue of base swell downwards; Be respectively equipped with the guide vane end stop 16 of the amount of elastic deformation that is used to limit corresponding conductive strips on the tongue 14; Guide vane end stop 16 deviates from distance between a side and the tongue of tongue at its place less than the top of the contact site of corresponding conducting strip and the distance between the tongue, thereby can be on the one hand for the elastic deformation of conductive strips provides certain space, and the deformation quantity that is unlikely to conductive strips on the other hand again is excessive and can't reset; During design; Make the distance L that deviates between the side of its tongue that belongs to separately at the guide vane end stop on two tongues equal the size of jack on respective direction of intermateable connector, thereby can make guide vane end stop 16 play the effect of supporting fully, needn't bring the location to prevent that relative displacement takes place between this electric connector and the intermateable connector on above-below direction by conduction again; Make the conductive component of conductive strips as sole duty; Except that with the contact of intermateable connector between contact the pretightning force, do not bear other any power, this has also slowed down the damage of conductive strips from another point of view; The rear end of conducting strip 15 extends back and gets between the cover plate 11 and base 12 of housing, and conducting strip 15 cover plate through housing and the extruding between the base just is fixed, meanwhile; In order to prevent that conducting strip 15 from play taking place in housing, also be respectively equipped with locating piece 17 on the tongue, in the present embodiment; Locating piece 17 on each tongue all has two, and two locating pieces on each tongue lay respectively at the left and right sides of the conducting strip on this tongue and join with the groove card that is located on the conducting strip, in addition; The rear end of conducting strip 15 is respectively equipped with line ball cover 18; Line ball cover 18 is used for the crimping cable, in use occasion, can at first become flexible screw 13 cover plate is separated with base; Compress corresponding lead through described line ball cover 18 then and can accomplish wiring, be suitable for field connection and convenient to operation.The downside of housing; The outer surface that is base is provided with an elasticity wall 19 and is provided with bullet pawl 20 through this elasticity wall 19; Elasticity wall 19 is located at the position between the rear and front end that plays pawl 20, and its front end overhangs and has a claw 20-1 to the front end of housing, and the claw that plays pawl is made up of near the projection on the side of housing it; The angle that has 90 ° between the correspondence position of the upper side of trailing flank of this projection (being claw) and bullet pawl; Be that claw does not form the hangnail structure, this is unlikely to and can't separates when make playing pawl with the intermateable connector clamping, the leading flank of claw 20-1 and be provided with guide surface 20-2; This guide surface is acclivitous gradually backward inclined-plane of the past, and guide surface 20-2 is used for that the counter structure on the intermateable connector is guided to the claw that plays pawl and is caught to play pawl; Also be provided with the housing limited post 21 that is used to limit the decrement of front end when housing is drawn close that plays pawl on the housing; Housing limited post 21 can limit play pawl when housing is drawn close and the minimum distance between the housing; Because housing is controlled in the meeting of operator's general custom property when controlling the grafting of electric connector and intermateable connector; The housing limited post can prevent to play the pawl compression when operating personnel pinch the front end that plays pawl excessive and cause " tangling " intermateable connector, prevents to lock the generation of the situation of failure; The rear end that plays pawl 20 has and supplies press section that staff pushes and be provided with near a side of housing in the press section to play pawl limited post 22; Play pawl limited post 22 and be used to limit the rear end that plays pawl, broken off with the fingers and thumb disconnected to prevent elasticity wall excessive deformation when housing is drawn close and the minimum range between the housing.When pegging graft with intermateable connector, can control the rear end of housing, play pawl and under the roof pressure of the counter structure on the intermateable connector, open automatically; After grafting puts in place, then overlap on intermateable connector with the two locking, when separating with intermateable connector through its claw; Can pinch the rear end that plays pawl, thereby make the bending of elasticity wall generation elasticity, force the bullet pawl to open; Thereby the completion release, only need drop housing backward and then can realize and the separating of intermateable connector this moment.

But in other embodiment of the electric connector of crimping cable of the present invention; But the quantity of the conducting strip described in the embodiment 1 of the electric connector of above-mentioned crimping cable is all can more than one; The contact site of one conductive strips in the two adjacent conducting strips is raised up when the quantity of conducting strip is two when above, the contact site of another conductive strips is to lower convexity; Can make the stressed even of this electric connector like this, plug soft.

The embodiment 1 of electric coupler component of the present invention shown in Fig. 6-12, is made up of plug and socket, and wherein plug and socket is inserted terminal separately with the front end.

But the structure of plug is identical with the structure of the embodiment 1 of the electric connector of above-mentioned crimping cable, shown in Fig. 6-10, comprises the plug casing of insulation; Plug casing is fastened with base 32 by cover plate 31 and forms, and at first through being located at the snap close fastening between the two, the structure of snap close and operation principle are prior art when fastening for cover plate 31 and base 32; Will not give unnecessary details here; Cover plate and base are further fixing through screw 33 again after snap close is tentatively locked, and are provided with the tongue 34 of extension forward in front end separately on cover plate 31 and the base 32, are set with conducting strip 35 respectively on the tongue on cover plate 31 and the base 32; Two right settings of conducting strip one the first from left; The front end place of conducting strip 35, the part that promptly is positioned on the corresponding tongue is provided with conductive strips 35-1, the contact site that conductive strips 35-1 extends and between the rear and front end, has bent ridge along fore-and-aft direction; Contact site is used for when this electric connector is pegged graft with socket, contacting with the contact of socket, thereby accomplishes the conveying of electric energy; The contact site that wherein is positioned at the conductive strips on the tongue of cover plate 31 front ends is protuberance upwards; The conductive strips that are positioned on the tongue of base swell downwards; Be respectively equipped with the guide vane end stop 36 of the amount of elastic deformation that is used to limit corresponding conductive strips on the tongue 34; Guide vane end stop 36 deviates from distance between a side and the tongue of tongue at its place less than the top of the contact site of corresponding conducting strip and the distance between the tongue, thereby can be on the one hand for the elastic deformation of conductive strips provides certain space, and the deformation quantity that is unlikely to conductive strips on the other hand again is excessive and can't reset; During design; Make the distance L that deviates between the side of its tongue that belongs to separately at the guide vane end stop on two tongues equal the size of grafting passage on respective direction of socket, thereby can make guide vane end stop 36 play the effect of supporting fully, needn't bring the location to prevent that relative displacement takes place between this electric connector and the socket on above-below direction by conduction again; Make the conductive component of conductive strips as sole duty; Except that with the contact of socket between contact the pretightning force, do not bear other any power, this has also slowed down the damage of conductive strips from another point of view; The rear end of conducting strip 35 extends back and gets between the cover plate 31 and base 32 of plug casing, and conducting strip 35 cover plate through plug casing and the extruding between the base just is fixed, meanwhile; In order to prevent that conducting strip 15 from play taking place in plug casing, also be respectively equipped with locating piece 37 on the tongue, in the present embodiment; Locating piece 37 on each tongue all has two, and two locating pieces on each tongue lay respectively at the left and right sides of the conducting strip on this tongue and join with the groove card that is located on the conducting strip, in addition; The rear end of conducting strip 35 is respectively equipped with line ball cover 38; Line ball cover 38 is used for the crimping cable, in use occasion, can at first become flexible screw 33 cover plate is separated with base; Compress corresponding lead through described line ball cover 38 then and can accomplish wiring, be suitable for field connection and convenient to operation.The downside of plug casing; The outer surface that is base is provided with an elasticity wall 39 and is provided with bullet pawl 40 through this elasticity wall 39; Elasticity wall 39 is located at the position between the rear and front end that plays pawl 40, and its front end overhangs and has a claw 40-1 to the front end of plug casing, and the claw that plays pawl is made up of near the projection on the side of plug casing it; The angle that has 90 ° between the correspondence position of the upper side of trailing flank of this projection (being claw) and bullet pawl; Be that claw does not form the hangnail structure, this is unlikely to and can't separates when make playing pawl with the socket clamping, the leading flank of claw 40-1 and be provided with guide surface 40-2; This guide surface is acclivitous gradually backward inclined-plane of the past, and guide surface 40-2 is used for that the counter structure on the socket is guided to the claw that plays pawl and is caught to play pawl; Also be provided with the plug casing limited post 41 that is used to limit the decrement of front end when plug casing is drawn close that plays pawl on the plug casing; Plug casing limited post 41 can limit play pawl when plug casing is drawn close and the minimum distance between the plug casing; Because plug casing is controlled in the meeting of operator's general custom property when controlling the grafting of electric connector and socket; The plug casing limited post can prevent to play the pawl compression when operating personnel pinch the front end that plays pawl excessive and cause " tangling " socket, prevents to lock the generation of the situation of failure; The rear end that plays pawl 40 has the press section of Gong pushing and is provided with bullet pawl limited post 42 in the press section near a side of plug casing; Play pawl limited post 42 and be used to limit the rear end that plays pawl, broken off with the fingers and thumb disconnected to prevent elasticity wall excessive deformation when plug casing is drawn close and the minimum range between the plug casing.When pegging graft with socket, can control the rear end of plug casing, play pawl and under the roof pressure of the counter structure on the socket, open automatically; After grafting puts in place, then overlap on socket with the two locking, when separating with socket through its claw; Can pinch the rear end that plays pawl, thereby make the bending of elasticity wall generation elasticity, force the bullet pawl to open; Thereby the completion release, only need drop plug casing backward and then can realize and the separating of socket this moment.

The structure of socket is shown in Figure 11-12; The Socket casing 51 that comprises insulation, Socket casing 51 are provided with and are used for and play the bridging arrangement that the pawl card is joined, in the present embodiment; Bridging arrangement is the protuberance 51-1 that is located on the Socket casing downside; This protuberance 51-1 protuberance is provided with protuberance guide surface 51-2 downward-sloping gradually backward in the past on the fore-and-aft direction of Socket casing 51 near a side of the front end of Socket casing 51, and the effect that acts on the claw guide surface of protuberance guide surface is identical, will not give unnecessary details here; Be provided with the grafting passage that the conducting strip that supplies plug and tongue insert in the Socket casing and in the grafting passage, be provided with socket contact 52, socket contact 52 adopts copper coins, thereby can transmit big electric current, specifically can reach 150A.

In other embodiment of electric coupler component of the present invention; The quantity of the conducting strip of the plug among the embodiment 1 of above-mentioned big electric coupler component is all can more than one; The contact site of one conductive strips in the two adjacent conducting strips is raised up when the quantity of conducting strip is two when above, the contact site of another conductive strips is to lower convexity; Can make the stressed even of this electric connector like this, plug soft.

Claims

1. but the electric connector of crimping cable; It is characterized in that; Comprise housing and conducting strip; Housing is inserted terminal with the front end, and conducting strip is provided with the conductive strips that extend along fore-and-aft direction, has being used for and the electrical contact site that contacts of the contact of intermateable connector of bent ridge between the rear and front end of conductive strips; The front end of said housing is provided with the tongue that is used for the intermateable connector grafting; Said conducting strip is installed on the corresponding tongue, and the guide vane end stop of the amount of elastic deformation when tongue is provided with and is used to limit corresponding conductive strips and pegs graft with intermateable connector, the guide vane end stop on the said tongue and conductive strips on being located at this tongue swell a side and the distance between the tongue that the identical and guide vane end stop of direction deviates from corresponding tongue less than the distance between the top of contact site and the corresponding tongue; Said housing is fastened up and down by base and cover plate and forms; In base and the cover plate at least one is provided with said tongue; Said conducting strip is press-fited between the base and cover plate that is fixed on housing, and the rear end of conducting strip has the line ball cover, and the line ball cover is located between the base plate and cover plate of housing.

2. but the electric connector of crimping cable according to claim 1 is characterized in that, is provided with between the cover plate of said housing and the base to be used for snap close that the two is stuck.

3. but the electric connector of crimping cable according to claim 1 is characterized in that, said housing is provided with the locating piece that is used to prevent the conducting strip play.

4. but the electric connector of crimping cable according to claim 1; It is characterized in that; Housing is provided with the bullet pawl; Said bullet pawl is installed on the housing through the elasticity wall that is located between its two ends, and the front end that plays pawl overhangs forward and has and is used for the claw of joining with the intermateable connector card, and said claw plays pawl and constitutes near the projection on the side of housing by being located at; The rear end that plays pawl has confession and pushes so that the open press section of front end.

5. but according to the electric connector of each described crimping cable of claim 1-4; It is characterized in that; Said conducting strip has at least two, and the contact site of one conductive strips in the two adjacent conducting strips raises up, and the contact site of another conductive strips is to lower convexity.

6. electric coupler component; Plug and socket by with the front end being inserted terminal separately constitutes; Plug comprises plug casing and plug contact, and socket comprises Socket casing, and Socket casing has the grafting passage that supplies the plug insertion and in the grafting passage, is provided with the socket contact; It is characterized in that; The plug contact is a conducting strip, and conducting strip is provided with the conductive strips that extend along fore-and-aft direction, has the contact site that electrically contacts with the socket contact of being used for of bent ridge between the rear and front end of conductive strips; The front end of said plug casing is provided with the tongue that is used for the socket grafting; Conducting strip is installed on the corresponding tongue, and the guide vane end stop of the amount of elastic deformation when tongue is provided with and is used to limit corresponding conductive strips and pegs graft with socket, the guide vane end stop on the said tongue and conductive strips on being located at this tongue swell a side and the distance between the tongue that the identical and guide vane end stop of direction deviates from corresponding tongue less than the distance between the top of contact site and the corresponding tongue; Said plug casing is fastened up and down by base and cover plate and forms; In base and the cover plate at least one is provided with said tongue; Said conducting strip is press-fited between the base and cover plate that is fixed on plug casing; The rear end of conducting strip has the line ball cover, and the line ball cover is located between the base plate and cover plate of plug casing.

7. electric coupler component according to claim 6 is characterized in that, is provided with between the cover plate of said plug casing and the base to be used for snap close that the two is stuck.

8. electric coupler component according to claim 6 is characterized in that, institute's plug casing is provided with the locating piece that is used to prevent the conducting strip play.

9. electric coupler component according to claim 6; It is characterized in that; Plug casing is provided with the bullet pawl; Said bullet pawl is installed on the plug casing through the elasticity wall that is located between its two ends, and the front end that plays pawl overhangs forward and has and is used for the claw of joining with the socket card, and said claw plays pawl and constitutes near the projection on the side of plug casing by being located at; The rear end that plays pawl has confession and pushes so that the open press section of front end.

10. according to each described electric coupler component of claim 6-9, it is characterized in that said conducting strip has at least two, the contact site of one conductive strips in the two adjacent conducting strips raises up, and the contact site of another conductive strips is to lower convexity.