CN202601882U - Card edge connector - Google Patents

Abstract

The utility model provides a card edge connector. The card edge connector comprises a lengthwise insulating body, a plurality of conductive terminals fixed on the insulating body and two metal holders which are fixedly held on two opposite sides of the insulating body for fixing a sub circuit board, wherein the insulating body is provided with a main body part and holding walls which are arranged at the two sides of the body part for fixing the metal holders; the holding wall is provided with a mounting slot for mounting a metal holder; a fixing part is provided with two side edges at upper and lower sides along the thickness direction of the insulating body; the holding wall is provided with a top wall and a bottom wall which are respectively arranged at the upper and lower sides of the mounting slot and opposite to the two side edges of the fixing part; the fixing part is provided with a first positioning part which is arranged between the two side edges along the thickness direction of the insulating body; the holding wall is provided with a second positioning part which is movably held with the first positing part; and floating gaps for floating the fixing part up and down are respectively formed between the two side edges of the fixing part and the top wall and the bottom wall respectively opposite to the two side edges.

Description

Bayonet connector

Technical field

The utility model relates to a kind of bayonet connector, relates in particular to a kind of bayonet connector with buckle gripping member.

Background technology

Bayonet connector is in order to being welded on the female circuit board, and supplies a sub-circuit board to peg graft, thereby with female circuit board and sub-circuit board electric connection.Said sub-circuit board both sides are respectively equipped with the breach that interlocks and hold with bayonet connector usually.Two buckle gripping members that said bayonet connector generally includes insulating body, is fixed on the plurality of conductive terminals on the insulating body and is fixed on the insulating body both sides.Said insulating body is provided with the central slot in order to the grafting sub-circuit board.Each conducting terminal is provided with one and extends into the contact site to be connected with said sub-circuit board in the central slot, and extends insulating body to be welded on the welding foot on female circuit board.Each buckle gripping member is provided with fixed part that is fixed on the insulating body both sides and the elastic arm that extends forward from fixed part.Said elastic arm be provided with in order to be pressed on sub-circuit board one side surface with sub-circuit board fixing compress body and with the body of pulling that compresses the adjacent setting of body.Said insulating body both sides are respectively equipped with a holddown groove in order to fixing said fixed part.Both sides or at least one side are provided with some hangnails usually about the said fixed part.Thereby inwall was fixed on fixed part in the holddown groove about this hangnail thrust holddown groove.After being fixed on the buckle gripping member on the insulating body through this kind fixed form; Said buckle gripping member does not just have any floating space along the insulating body thickness direction, thereby makes sub-circuit board can only be fixed on according to the installment state of two buckle gripping members between two buckle gripping members.But the flatness problem that will inevitably exist various deviations, particularly conducting terminal and buckle gripping member to install in the assembling process of each element of bayonet connector usually is difficult to solve always.Thus; When sub-circuit board be fixed on be fixed dead and two said buckle gripping members that have the flatness problem between the time; Cause the golden finger on the sub-circuit board can not effectively contact easily, and then can't guarantee effective transmission of signal with the contact site of partially conductive terminal.

Therefore, be necessary to provide a kind of improved bayonet connector to address the above problem.

The utility model content

The purpose of the utility model is to provide a kind of bayonet connector that can suitably regulate the buckle gripping member.

For realizing above-mentioned utility model purpose; The utility model provides a kind of bayonet connector; Comprise lengthwise insulating body, be fixed on the plurality of conductive terminals on the insulating body and be retained on two the buckle gripping members of the relative both sides of insulating body with a fixing sub-circuit board; Said insulating body is provided with main part and is positioned at the fixing wall of main part both sides with fixing said buckle gripping member; Said fixing wall is provided with the mounting groove that said buckle gripping member is installed; Said fixed part is provided with along the insulating body thickness direction and is positioned at the both side edges of both sides up and down; Said fixing wall be provided with lay respectively at the mounting groove upper and lower sides and with the both side edges opposing top and the diapire of said fixed part; Said fixed part is provided with along first location division of insulating body thickness direction between both side edges, and said fixing wall is provided with second location division with the movable fixing in said first location division, is formed with the flying height that supplies said fixed part to fluctuate respectively between the both side edges of said fixed part and the said roof relative respectively with this both side edges and the diapire.

As the further improvement of the utility model, said flying height increases from back to front gradually.

As the further improvement of the utility model, the inner surface that said roof and diapire are adjacent with said mounting groove is skewed respectively.

As the further improvement of the utility model, said second location division is fixing piece in a pleurapophysis stretches into said mounting groove, and said first location division be the holding hole with said fixing piece activity fixing.

As the further improvement of the utility model, said fixing piece rear side is the circular arc setting, and fixing piece front side is provided with and is obliquely installed the guiding face of installing with the guiding fixed part, the rounded setting of said holding hole so that said fixed part can rotate around the fixing piece.

As the further improvement of the utility model, said fixing wall is provided with the elastic arm that is positioned at said mounting groove one side, and said fixing piece is in the elastic arm medial side protrudes into said mounting groove.

As the further improvement of the utility model, said second location division is the support division that is positioned at mounting groove one side, and said first location division is the side direction projection with the holding piece that offsets with said support division, and said holding piece can move up and down at said support division.

As the further improvement of the utility model, said fixing wall is provided with along buckle and holds the guide channel that the sheet installation direction extends, and said guide channel is connected with mounting groove, and said guide channel is positioned at said support division the place ahead.

As the further improvement of the utility model, said fixing wall is provided with the elastic arm that is positioned at said mounting groove one side, and said support division is positioned at the end of said elastic arm.

As the further improvement of the utility model, said guide channel extends on the said elastic arm, and does not extend to the elastic arm end.

The beneficial effect of the utility model is: the utility model bayonet connector is provided with on the one hand first location division and second location division of movable fixing on the fixing wall of the fixed part through the buckle gripping member and insulating body; On the other hand through between roof and the diapire up and down of mounting groove on the fixed part both side edges of buckle gripping member and the fixing wall relative respectively, the flying height that supplies fixed part to fluctuate being set respectively with this both side edges; Thus can be after said buckle gripping member be installed on the insulating body; Still can carry out the suitable adjusting that fluctuates to said buckle gripping member integral body; And guarantee that said buckle gripping member can not be out of shape in the adjustment process of being floated; Thereby make the buckle gripping member flatness of the utility model bayonet connector both sides better; And then make that being fixed on this can effectively contact with the conducting terminal of the utility model bayonet connector the sub-circuit board between the buckle gripping member, finally guarantees effective transmission of the signal between the utility model bayonet connector and the sub-circuit board.

Description of drawings

Fig. 1 is the stereogram of the utility model bayonet connector first preferred embodiments;

Fig. 2 is the part exploded view of bayonet connector among Fig. 1;

Fig. 3 is the view of another angle of Fig. 2;

Fig. 4 is the three-dimensional cutaway view of the insulating body of bayonet connector among Fig. 2;

Fig. 5 is the cutaway view of bayonet connector among Fig. 1, the mated condition of buckle gripping member and insulating body in demonstration the utility model bayonet connector;

Fig. 6 is the stereogram of the utility model bayonet connector second preferred embodiments;

Fig. 7 is the three-dimensional cutaway view of bayonet connector among Fig. 6;

Fig. 8 is the part exploded view of bayonet connector among Fig. 7;

Fig. 9 is the end view of Fig. 7, the mated condition of buckle gripping member and insulating body in demonstration the utility model bayonet connector.

Embodiment

Below will combine each execution mode shown in the drawings that the utility model is described in detail.But these execution modes do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these execution modes, method or the function all is included in the protection range of the utility model.

Please referring to figs. 1 through shown in Figure 5 be first preferred embodiments of the utility model bayonet connector 100.In this execution mode, said bayonet connector 100 comprise lengthwise insulating body 1, be fixed on the plurality of conductive terminals 2 on the insulating body 1 and be fixed on the pair of metal retainer 3 of insulating body 1 relative both sides with a fixing sub-circuit board (not shown) both side edges.

Please extremely shown in Figure 4 with reference to Fig. 2, said insulating body 1 comprises main part 11 and is positioned at a pair of fixing wall 12 of autonomous body 11 both sides.Said main part 11 is provided with along the longitudinally extension and runs through the terminal containing slot 112 of main part 11 and protrude into the separating part 113 in the central slot 15 to accommodate sub-circuit board terminal central slot 111, front and back.Said central slot 111 is open forward, so that sub-circuit board inserts in the central slot 111 from body 1 front side of insulating.Said separating part 113 is separated into left and right sides two parts not of uniform size with central slot 111, thereby can prevent that sub-circuit board from instead inserting or mispluging.Said main part 11 comprises first roof 17 and first diapire 18 that is positioned at central slot 111 downsides that is positioned at central slot 111 upsides.Said first diapire, 18 front ends extend beyond first roof, 17 front ends forward.Said terminal containing slot 112 comprises that some front and back run through the first terminal accepting groove 1121 and second terminal containing slot 1122 that runs through first diapire 18 of first roof 17.The said the first terminal accepting groove 1121 and second terminal containing slot 1122 are connected along insulating body 1 thickness direction with central slot 111.

Each said fixing wall 12 is respectively equipped with front and back to be run through with the mounting groove 121 that said buckle gripping member 3 is installed, second roof 122 that lays respectively at said mounting groove 121 upper and lower sides and second diapire 123 and the elastic arm 16 that is positioned at said mounting groove 121 1 sides.Said second roof 122 and second diapire 123 all are skewed with said mounting groove 121 adjacent inner surfaces, thereby make said mounting groove 121 from back to front along the broadening gradually of insulating body 1 thickness direction.Said elastic arm 16 along insulating body 1 thickness direction between said second roof 122 and second diapire 123 and with said second roof 122 and the 123 vertical settings of second diapire.Said elastic arm 16 is provided with second location division with said buckle gripping member 3 movable fixings.In this execution mode, said second location division is from said elastic arm 16 medial side and protrudes into the fixing piece 161 in the said mounting groove 121.Said fixing piece 161 is the semicircle column type, and is provided with and is positioned at the front side and is obliquely installed to guide guiding face 1611 that said buckle gripping member 3 installs and to be positioned at rear side and to be the blocking surface 1612 that the circular arc setting moves forward to prevent buckle gripping member 3.In this execution mode, said elastic arm 16 is arranged on the adjacent madial wall of said fixing wall 12 and main part 11.Really, in other embodiments, said elastic arm 16 also can be arranged on the lateral wall of said fixing wall 12.In buckle gripping member 3 is inserted mounting grooves 121 and when supporting fixing piece 161, said elastic arm 16 is towards the distortion of main part 11 directions, and after buckle gripping member 3 is in place, said elastic arm 16 rebound and with buckle gripping member 3 fixing mutually.

Please combine Fig. 1 to shown in Figure 3, said conducting terminal 2 comprises the first terminal 21 that is fixed in the first terminal accepting groove 1121 and second terminal 22 that is fixed in second terminal containing slot 1122.Said the first terminal 21 inserts the first terminal accepting groove 1121 from body 1 rear end of insulating, and is provided with first holding parts 211 that is fixed in the first terminal accepting groove 1121, stretches into first weld part 213 that first contact site 212 and first holding parts, 211 other ends in the central slot 111 extend back insulating body 1 from first holding parts, 211 1 distal process.Said second terminal 22 inserts second terminal containing slot 1122 from body 1 front end that insulate, and be provided with second holding parts 221 that is fixed in second terminal containing slot 1122, second contact site 222 that stretches into central slot 111 in from second holding parts, 221 1 distal process reaches second weld part 223 that extends main part 11 front ends from second holding parts, 221 other ends forward.

Please combine Fig. 2 to shown in Figure 5, each said buckle gripping member 3 comprise be fixed in the mounting groove 121 and fixed part 31 that the opposite direction that prevents that said buckle gripping member 3 from inserting along sub-circuit board moves, the base portion 32 that extends from fixed part 31, from base portion 32 front ends turn forward the elastic arm 33 that extends, from base portion 32 lower ends bending and horizontally extending forward horizontal arm 34, the restriction body 36 that extends from horizontal arm 34 bendings and the margining tablet 35 that bends extension from base portion 32 tops downwards.Said base portion 32 is wideer than said fixed part 31 along insulating body 1 thickness direction, and the front end that said base portion 32 rear end upper and lower sides can support at said fixing wall 12 moves to prevent said buckle gripping member 3 backward.

Said fixed part 31 is mounted in the mounting groove 121 of said fixing wall 12, and be provided with along insulating body 1 thickness direction two lateral margins 310 of both sides up and down and along insulating body 1 thickness direction between two said lateral margins 310 and with said fixing wall 12 on first location division of the movable fixing in second location division.In this execution mode, said first location division be along insulating body 1 thickness direction up and down between the lateral margin 310 with said elastic arm 16 on fixing piece 161 holding hole 311 of fixing mutually.Said holding hole 311 rounded settings are so that said fixed part 31 can be around 161 rotations of fixing piece.Said fixed part 31, base portion 32 and elastic arm 33 all vertically are provided with.Said fixed part 31 along the width of insulating body 1 thickness direction less than the width of said mounting groove 121 along insulating body 1 above-below direction.After said fixed part 31 is installed in the mounting groove 121, the lateral margin up and down 310 of said fixed part 31 and with second roof 122 of these fixing wall 12 upper and lower sides that up and down lateral margin 310 is corresponding respectively and second diapire 123 between be formed with a flying height 125 respectively.Because of said second roof 122 and second diapire 123 all are skewed with said mounting groove 121 adjacent inner surfaces, thereby said flying height 125 also increases from back to front gradually.Said flying height 125 can supply said fixed part 31 integral body to fluctuate around fixing piece 161, and then makes said buckle gripping member 3 integral body to fluctuate around fixing piece 161; Thus; After buckle gripping member 3 being mounted on the said insulating body 1; Still can be through the flatness that fluctuates between two buckle gripping members 3 of buckle gripping member 3 adjustings; And can guarantee that said buckle gripping member 3 can not be out of shape in the adjustment process of being floated; And then make the sub-circuit board that is fixed between these two buckle gripping members 3 can effectively contact with the conducting terminal 2 of the utility model bayonet connector 100, finally guarantee effective transmission of the signal between the utility model bayonet connector 100 and the sub-circuit board.

Said elastic arm 33 and horizontal arm 34 are perpendicular and divide along the vertical direction and be arranged.The extension that bends inwards earlier from base portion 32 lower ends of said horizontal arm 34, horizontal-extending forms forward then.Said elastic arm 33 is positioned at the top of horizontal arm 34.Said horizontal arm 34 finally is soldered on the female circuit board (not shown).Said restriction body 36 comprises second restrictions 362 that bends first restrictions 361 of extension straight up and extend towards the bending of elastic arm 33 directions from first restrictions, 361 tops from horizontal arm 34 medial extremitys.The barrier 3622 that said second restrictions 362 is provided with the stopper slot 3621 that extends along insulating body 1 longitudinally and is positioned at stopper slot 3621 outsides along insulating body 1 longitudinally.The longitudinally of said insulating body 1 is identical with the vertical direction that sub-circuit board inserts, thereby said stopper slot 3621 also can be regarded as the vertical direction extension of inserting along sub-circuit board.

Said elastic arm 33 be provided with through tear and inwardly bending form with what compress said sub-circuit board one side surface and compress body 331.In this execution mode,, also compress body 331 so that elastic arm 33 outwards moves through outwards pulling when withdrawing from when inserting said bayonet connector 100.Saidly compress body 331 and the 36 adjacent settings of restriction body, and saidly compress the rear that body 331 is positioned at restriction body 36.Said elastic arm 33 also is provided with the retaining piece 332 towards 361 bendings of first restrictions from its front end.Said retaining piece 332 is provided with the slide block 3321 that upwards protrudes in the stopper slot 3621.Said barrier 3622 can stop that slide block 3321 excessively outwards moves and skid off stopper slot 3621, and then the restriction elastic arm 33 outside distances that move, and prevents excessively outwards movement and deformation of elastic arm 33.Said retaining piece 332 is perpendicular with said first restrictions 361, and is positioned at the outside of first restrictions 361.Said first restrictions 361 stops that retaining piece 332 excessively moves inward in the time of can or inwardly pushing away elastic arm 33 in elastic arm 33 bounce-backs, and then prevents that elastic arm 33 is excessively to internal strain.Said restriction body 36 also is provided with from second restrictions 362 and is pressed into the fool proof portion 363 that compresses body 331 belows towards compressing the extension of body 331 directions when putting in place to prevent that sub-circuit board from not pegging graft.Said elastic arm 33 is provided with the upwardly extending back-up block 333 from the top.Said back-up block 333 be positioned at said fool proof portion 363 under, to prevent that sub-circuit board is with 363 compressive strains excessively down of fool proof portion.Said margining tablet 35 extends to the outside, rear of said elastic arm 33 forward, when elastic arm 33 outwards is out of shape, to support elastic arm 33 outsides, further to prevent elastic arm 33 excessive deformations.

In this execution mode; Said bayonet connector 100 is through being provided with the restriction body 36 that extends from horizontal arm 34 on buckle gripping member 3; And on this restriction body 36, be provided with along the stopper slot 3621 of the vertical direction extension of sub-circuit board insertion; And elastic arm 33 setting protrudes into the slide block 3321 in the stopper slot 3621, thereby elastic arm 33 outwards being pulled when withdrawing from sub-circuit board, because of the slide block on the elastic arm 33 3321 only can move at stopper slot 3621 interior orientations; And then make and finally can prevent the utility model buckle gripping member 3 excessive deformations by excessively movement and deformation of elastic arm 33.Can get thus, more firm at bayonet connector described in this execution mode 100 and buckle gripping member 3 overall structures thereof.

Please said with reference to Fig. 6 to Fig. 9 is second preferred embodiments of the utility model bayonet connector 500.In this execution mode, said bayonet connector 500 also comprise lengthwise insulating body 6, be fixed on the conducting terminal 7 on this insulating body 6 and be fixed on the pair of metal retainer 8 of insulating body 6 relative both sides with a fixing sub-circuit board (not shown) both side edges.

Said insulating body 6 also comprises main part 61 and is positioned at the fixing wall 62 of main part 61 both sides with fixing said buckle gripping member 8.Said fixing wall 62 also is provided with the mounting groove 621 in order to said buckle gripping member 8 to be installed.Each said buckle gripping member 8 also be provided with one be installed in the said mounting groove 621 and prevent fixed part 81 that opposite direction that said buckle gripping member 8 is inserted along sub-circuit board moves, the base portion 82 that extends from said fixed part 81 and the elastic arm 83 that extends from said base portion 82.Said base portion 82 is wideer than said fixed part 81 along insulating body 6 thickness directions, and the front end that said base portion 82 rear end upper and lower sides can support at said fixing wall 62 moves to prevent said buckle gripping member 8 backward.

Said fixed part 81 is provided with along insulating body 6 thickness directions in the both side edges 810 of both sides up and down and along first location division of insulating body 6 thickness directions between two said lateral margins 810.Said fixing wall 62 be provided with lay respectively at mounting groove 621 upper and lower sides and with the both side edges opposing top of said fixed part 81 622 and diapire 623 and with second location division of the movable fixing in said first location division.Be formed with the flying height 625 that supplies said fixed part 81 to fluctuate between the lateral margin up and down 810 of said fixed part 81 and the said roof 622 relative respectively and the diapire 623 respectively with this both side edges 810.Thus; After can making said buckle gripping member 8 be mounted on the said insulating body 6; Still can carry out suitable adjusting to buckle gripping member 8 integral body; Thereby make two flatnesses between the buckle gripping member 8 better, and then make the sub-circuit board that is fixed between these two buckle gripping members 8 can effectively contact, and then guarantee effective transmission of the signal between the utility model bayonet connector 500 and the sub-circuit board with the conducting terminal 7 of the utility model bayonet connector 500.

In this execution mode, said second location division is the support division 624 that is positioned at said mounting groove 621 1 sides that is provided with on the said fixing wall 62.Said first location division is side direction projection and the holding piece 811 that offsets with said support division 624 on the said fixed part 81.Said holding piece 811 can move up and down on said support division 624.Said fixing wall 62 is provided with along buckle and holds the guide channel 626 that sheet 8 installation directions extend.Said guide channel 626 is positioned at said mounting groove 621 1 sides and is connected with mounting groove 621.Said guide channel 626 is positioned at said support division 624 the place aheads.Said fixing wall 62 is provided with the elastic arm 627 that is positioned at said mounting groove 621 1 sides.Said support division 624 is positioned at the end of said elastic arm 627, and in this execution mode, said support division 624 is the terminal surface of said elastic arm 627.Said guide channel 626 extends on the said elastic arm 627, and does not extend to elastic arm 627 ends.Said holding piece 811 punctures formation on fixed part 81.When said buckle gripping member 8 is installed; Said holding piece 811 moves along said guide channel 626 backward, and when holding piece 811 moved to guide channel 626 rear ends, said holding piece 811 supported said elastic arm 627 to mounting groove 621 lateral direction; When said holding piece 811 moves to elastic arm 627 terminal rears; Said elastic arm 627 bounce-backs, said holding piece 811 supports on the support division 624 of said elastic arm 627 ends simultaneously, thereby prevents that said buckle gripping member 8 from moving forward.Certainly; Moving up and down said buckle gripping member 8 so that the flatness of two buckle gripping members 8 is regulated; Said holding piece 811 also moves up and down on said support division 624, and can guarantee that said buckle gripping member 8 can not be out of shape in the adjustment process of being floated.

In sum, the utility model bayonet connector 100,500 is provided with first location division and second location division of movable fixing on the one hand on the fixing wall 12,62 of the fixed part 31,81 through buckle gripping member 3,8 and insulating body 1,6; On the other hand roof 122,622 and the diapire 123 through mounting groove 121,621 upper and lowers on fixed part 31,81 both side edges 310,810 of buckle gripping member 3,8 and the fixing wall 12,62 relative respectively with this both side edges 310,810, the flying height 125,625 that supplies fixed part to fluctuate is set respectively between 623; Thus can be after said buckle gripping member 3,8 be installed on the insulating body 1,6; Still can carry out the suitable adjusting that fluctuates to said buckle gripping member 3,8 integral body; And guarantee that said buckle gripping member 3,8 can not be out of shape in the adjustment process of being floated; Thereby make the buckle gripping member 3 of the utility model bayonet connector 100,500 both sides, the flatness between 8 better; And then make that being fixed on this can effectively contact with the conducting terminal 2,7 of the utility model bayonet connector 100,500 buckle gripping member 3, sub-circuit board between 8, finally guarantees effective transmission of the signal between the utility model bayonet connector 100,500 and the sub-circuit board.

Be to be understood that; Though this specification is described according to execution mode; But be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technical scheme in each execution mode also can form other execution modes that it will be appreciated by those skilled in the art that through appropriate combination.

The listed a series of detailed description of preceding text only is specifying to the feasibility execution mode of the utility model; They are not the protection range in order to restriction the utility model, allly do not break away from equivalent execution mode or the change that the utility model skill spirit done and all should be included within the protection range of the utility model.

Claims (10)

1. bayonet connector; Comprise lengthwise insulating body, be fixed on the plurality of conductive terminals on the insulating body and be retained on two the buckle gripping members of the relative both sides of insulating body with a fixing sub-circuit board; Said insulating body is provided with main part and is positioned at the fixing wall of main part both sides with fixing said buckle gripping member; Said fixing wall is provided with the mounting groove that said buckle gripping member is installed; Said fixed part is provided with along the insulating body thickness direction and is positioned at the both side edges of both sides up and down; Said fixing wall be provided with lay respectively at the mounting groove upper and lower sides and with the both side edges opposing top and the diapire of said fixed part; It is characterized in that: said fixed part is provided with along first location division of insulating body thickness direction between both side edges, and said fixing wall is provided with second location division with the movable fixing in said first location division, is formed with the flying height that supplies said fixed part to fluctuate respectively between the both side edges of said fixed part and the said roof relative respectively with this both side edges and the diapire.

2. bayonet connector as claimed in claim 1 is characterized in that: said flying height increases from back to front gradually.

3. bayonet connector as claimed in claim 2 is characterized in that: the inner surface that said roof and diapire are adjacent with said mounting groove is skewed respectively.

4. bayonet connector as claimed in claim 1 is characterized in that: said second location division is fixing piece in a pleurapophysis stretches into said mounting groove, and said first location division be the holding hole with said fixing piece activity fixing.

5. bayonet connector as claimed in claim 4; It is characterized in that: said fixing piece rear side is the circular arc setting; Fixing piece front side is provided with and is obliquely installed the guiding face of installing with the guiding fixed part, the rounded setting of said holding hole so that said fixed part can rotate around the fixing piece.

6. bayonet connector as claimed in claim 4 is characterized in that: said fixing wall is provided with the elastic arm that is positioned at said mounting groove one side, and said fixing piece is in the elastic arm medial side protrudes into said mounting groove.

7. bayonet connector as claimed in claim 1; It is characterized in that: said second location division is the support division that is positioned at mounting groove one side; Said first location division is the side direction projection with the holding piece that offsets with said support division, and said holding piece can move up and down on said support division.

8. bayonet connector as claimed in claim 7 is characterized in that: said fixing wall is provided with along buckle and holds the guide channel that the sheet installation direction extends, and said guide channel is connected with mounting groove, and said guide channel is positioned at said support division the place ahead.

9. bayonet connector as claimed in claim 8 is characterized in that: said fixing wall is provided with the elastic arm that is positioned at said mounting groove one side, and said support division is positioned at the end of said elastic arm.

10. bayonet connector as claimed in claim 9 is characterized in that: said guide channel extends on the said elastic arm, and does not extend to the elastic arm end.

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