CN203617476U

CN203617476U - Electric connector

Info

Publication number: CN203617476U
Application number: CN201320674864.2U
Authority: CN
Inventors: 施咸光
Original assignee: Chief Land Electronic Co Ltd
Current assignee: Chief Land Electronic Co Ltd
Priority date: 2013-10-29
Filing date: 2013-10-29
Publication date: 2014-05-28
Anticipated expiration: 2023-10-29

Abstract

The utility model provides an electric connector. A terminal group is positioned on a docking part on the front side of a pedestal of a base. Two sides on the rear part of the pedestal are provided with limiting grooves extending forward. A first shell is positioned outside the base in a covering manner. Side boards on two sides of the first shell are provided with buckling parts. The buckling parts are provided with elastic buckling sheets turning outward towards the front side. A base part of a second shell can be pressed against the surface of a top board of the first shell in a manner of sliding from the rear side to the front side. After the second shell is pushed in and positioned, the elastic buckling sheets can be clamped in buckling holes in buckling parts arranged on the side boards disposed on two sides of the base part and buckling sheets turning inward and arranged on the inner wall face on the rear side of the buckling parts on the side boards can be clamped forward in the limiting grooves. The second shell can be positioned outside the first shell in a sliding buckling manner and can be in a positioned status in three directions of X axis, Y axis and Z axis fitting the base. Solid combination can be realized without laser spot welding and effects of stable structure, easy assembly and low cost can be achieved.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, espespecially pedestal outside covers and is positioned with the first housing, just the second housing utilization slip manner can be positioned to the first outside, and coordinate pedestal to present the axial positioning states of XYZ tri-, do not need to use the radium-shine spot welding mode can be in conjunction with firmly reaching Stability Analysis of Structures, assembling effect easy and with low cost.

Background technology

The fast development of electronics technology, multimedia messages and Internet now, make the electronic installations such as computer, notebook computer, ultra-thin notebook computer, panel computer, Smartphone be prevalent in each corner in society, and because the design of various electronic installations at present all trends towards light, thin, short, little, and in order to make electronic installation volume-diminished, therefore the component structure on electronic installation internal circuit board needs small but excellent close, overall construction intensity also needs to strengthen the development trend with in response to current thereupon.

Moreover, at present electronic installation big city on the market utilizes connector to reach and being connected of circuit board, and this connector can be arranged in it for cable mostly, and with the complex signal terminal of connector inside or power supply terminal do one be connected after, signal or power supply can be sent in control circuit by circuit board for another connector, in order to carry out the use of signal or power delivery, no matter be that signal or power connector are to be all provided with terminal group on pedestal, and this terminal group is mostly to utilize plug-in unit assembling mode to be positioned on pedestal, but along with more and more miniaturization of electronic installation, the space that can assemble for terminal group on pedestal becomes more and more narrower, and the coplane degree that causes terminal group is difficult for keeping and quality and the qualification rate of easy impact welding, in the time that external plug is pegged graft, often can or collide strength and cause the easy generation of connector upwards to start or double swerve because of plug, suitable unstable of overall structure, and the soldering structure between welding foot and the circuit board of the outside metal shell that covers of the weld part of this terminal group and pedestal also easily produces situation about destroying or peel off and occurs, thereby derivative have connector processing procedure disqualification rate and a higher problem of cost, even there is the disappearance of the bad or disconnected news of signal.

Be with, overall structure is strengthened for being further provided with keeper in the metal shell outside that the present external body of Bian You manufacturer covers, refer to shown in Fig. 9, it is the vertical view of existing electric connector, wherein this body A is upper for being positioned with terminal group A1, and cover and be positioned with inner housing B in body A outside, and be formed with and dock space between inner housing B and body A inside, be positioned with a shell body C in inner housing B outside again, though it can utilize the mode of screw locking to be incorporated on circuit board by shell body C, and utilize shell body C to pin down inner housing B and strengthen overall structure, only this inner housing B and shell body C utilize radium-shine welding manner after high temperature melting and cooling procedure, to be formed with solder joint C1 to be combined into one, but now low margin age because of connector manufacturer highly competitive, for production cost, control is there's no one who doesn't or isn't haggled over every penny, to obtain more profit, the radium-shine bonding machine price of this kind of radium-shine welding manner use is very expensive, and in different connector procedure of processings, also need to expend the many time and set, and consider connector product profit and production cost, not there is the demand that uses radium-shine bonding machine to produce all manufacturing factories commercial city, so will be how produce not using under radium-shine bonding machine, still can reach the structural strength of radium-shine welding manner, just for being engaged in the key point of this journey redesign that dealer desires most ardently.

Summary of the invention

Therefore, novel practical new design people is because above-mentioned existing problem and disappearance, be collect related data via assessment in many ways and consider, and utilize the research and development experience for many years of engaging in the industry constantly study and revise, this kind of novel birth of electric connector of beginning to design.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of electric connector, is characterized in that, comprising:

One pedestal has pedestal, and is provided with a docking part at this pedestal front side place, and is positioned with terminal group on this docking section, then cuts open forward respectively and be provided with a stopper slot at this both sides place, pedestal rear;

One first housing covers and is positioned this pedestal outside, and has a top board at this first housing, and the side plate that establish in this place, top board both sides is provided with relative holding part, and on this holding part, has the elastic fastening plate of the outer turnover of at least one direction forward;

One second housing has the lip-deep base portion of top board that is held in this first housing by backward front slide, and be provided with clamping part on the side plate at this base portion both sides place, on this clamping part, have at least one for this elastic fastening plate clasp button hole in the inner, and be provided with inside turnover at the internal face place at this clamping part rear and be held in forward the snapping sheet in this stopper slot, then extend outwardly and be provided with location foot by this side plate bottom side place.

In technical scheme preferably, also can increase following technical characterictic:

The clamping part of this second housing is inwardly transferred and is had on the side plate that is held in this first housing and can supply this elastic fastening plate clasp spacing catch thereon towards the rear by this button hole leading edge place, and is all formed with profile groove at this upper and lower both sides of spacing catch place.

The stopper slot inner side place of this pedestal is formed with the stop surface of scalariform, and on the side plate of this first housing, be positioned at this holding part rear side place and cut open forward the short slot being provided with corresponding to this stopper slot place, the snapping sheet periphery place of this second housing is provided with profile groove for cuing open, and being all formed with the end that supports on the stop surface that is held in this stopper slot in this snapping sheet end, this supports holds the kink that is formed with through and is positioned at this short slot place adjacent to profile groove place.

On the side plate of this first housing, be positioned at this short slot below place and extend outwardly and be provided with vertical welding foot, and cut open and is provided with profile groove at elastic fastening plate periphery place on this side plate.

The pedestal top of this pedestal is provided with the block of a protrusion, and be provided with protruding button at this block both sides place, the top board both sides place of this first housing is provided with and can supplies this protruding button clasp catching groove in the inner, and cut open forward at this top board rear side place to be provided with and can supply this block inlay card draw-in groove in the inner, and be positioned at the barrier sheet that this draw-in groove both sides place is provided with downward bending and is held in this pedestal rear side place.

The docking section of this pedestal has a hyoplastron, and on this hyoplastron, be positioned with the terminal group of a side place tool contact site, and the opposite side place with respect to this contact site is provided with the weld part that is piercing in this pedestal outside, then is formed with and can stretches into docking space in the inner for this docking section in this first enclosure interior.

The docking space below place of this first housing has a base plate, and is provided with plural number at this plate inner wall face place and supports shell fragment, and those support shell fragment periphery place and cut open and be provided with profile groove.

The location foot end of this second housing has the Extendible flake of a level, and is provided with perforation on this Extendible flake surface, and this Extendible flake is formed with the upwards kink of bending adjacent to this side plate place.

In the perforation of this location foot, be equipped with a retaining element.

Compared with prior art, adopt the advantage the utlity model has of technique scheme to be:

On the docking section at the pedestal front side place of pedestal institute tool for being positioned with terminal group, and all cut open forward and be provided with stopper slot at both sides place, pedestal rear, and the side plate at the first housing both sides place of the outside location that covers of pedestal is provided with the elastic fastening plate that holding part is outwards transferred towards front, just the base portion of the second housing institute tool can be held on the first housing top board surface by backward front slide, and treat that the second housing is pushed into location, can make elastic fastening plate be held in the button hole of clamping part set on base portion both sides place side plate, and the snapping sheet of inwardly being transferred by the internal face place that is positioned at clamping part rear on side plate is held in forward stopper slot, this kind the second housing utilization slip manner is positioned the first outside, and coordinate pedestal to present the XYZ tri-direction of principal axis positioning states of six-freedom degree altogether, do not need to use radium-shine spot welding mode can carry out combination firm, and then reach Stability Analysis of Structures, assemble effect easy and with low cost.

Two side plate bottom side places of the second housing extend outwardly and are provided with location foot, and be all provided with perforation on the Extendible flake surface of location foot, and be equipped with the retaining element being incorporated on circuit board in each perforation, in outside electrical connector plug is plugged in the first housing, and form while being electrically connected with the terminal group of pedestal, just can rely on the location foot of the second housing on circuit board, to pin down the first housing in conjunction with being positioned, pedestal is plugged or collide strength time, the first housing is subject to the restriction of the second housing reaction force and unlikely generation has and upwards starts, the situation of double swerve or structural deterioration occurs, prevent that the solder structure on weld part and the circuit board of terminal group is damaged simultaneously, make overall signal transmission quality more stable and reliable.

Accompanying drawing explanation

Fig. 1 is stereo appearance figure of the present utility model;

Fig. 2 is three-dimensional exploded view of the present utility model;

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

Fig. 4 is the three-dimensional exploded view of the utility model preferred embodiment before assembling;

Fig. 5 is the stereo appearance figure of the utility model preferred embodiment in the time of assembling;

Fig. 6 is the top plan view of the utility model preferred embodiment in the time of assembling;

Fig. 7 is the three-dimensional top plan view of the utility model preferred embodiment after assembling;

Fig. 8 is the stereo appearance figure of another preferred embodiment of the utility model;

Fig. 9 is the vertical view of existing electric connector.

Description of reference numerals: 1-pedestal; 11-pedestal; 111-block; The protruding button of 112-; 113-buckle groove; 114-reference column; 12-docking section; 121-hyoplastron; 1211-stop part; 1212-recess; 122-terminal groove; 13-terminal group; 131-contact site; 132-weld part; 14-stopper slot; 141-stop surface; 2-the first housing; 20-docks space; 21-top board; 211-through hole; 212-catching groove; 213-draw-in groove; 214-barrier sheet; 22-side plate; 221-short slot; 222-welding foot; 23-holding part; 231-elastic fastening plate; 232-profile groove; 24-base plate; 241-supports shell fragment; 242-profile groove; 3-the second housing; 31-base portion; 311-open-work; 32-side plate; 33-clamping part; 331-button hole; The spacing catch of 332-; 333-profile groove; 34-snapping sheet; 341-profile groove; 342-supports end; 343-kink; 35-locates foot; 351-Extendible flake; 352-perforation; 353-kink; 36-retaining element; 4-circuit board; A-body; A1-terminal group; B-inner housing; C-shell body; C1-solder joint.

Embodiment

For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, hereby draw and illustrate with regard to preferred embodiment of the present utility model that in detail its structure is as follows with function, is beneficial to understand completely.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, be respectively the three-dimensional exploded view at stereo appearance figure of the present utility model, three-dimensional exploded view and another visual angle, by knowing and find out in figure, the utility model is for including pedestal 1, the first housing 2 and the second housing 3, wherein:

This pedestal 1 has a pedestal 11, and be provided with docking section 12 at pedestal 11 front side places, and this pedestal 11 can be formed in one or separate organized structure with docking section 12 and form, and the better enforcement in docking section 12 has a hyoplastron 121, and be formed with the stop part 1211 of downward turnover at hyoplastron 121 both sides places, and be upwards formed with recess 1212 between hyoplastron 121 and stop part 1211, but in the time of practical application, docking section 12 also can be the pattern of slot (not shown), and on hyoplastron 121 surfaces, be concaved with the plural terminals groove 122 that can locate for terminal group 13, and terminal group 13 1 side places are provided with flat contact site 131, and be provided with and be piercing in pedestal 11 rear places and form coplanar weld part 132 with respect to the opposite side place of contact site 131, separately, pedestal 11 both sides, rear places are provided with stopper slot 14 for cuing open forward respectively, and are all formed with the stop surface 141 of scalariform at stopper slot 14 inner side places.

Moreover, the pedestal 11 center of top places of pedestal 1 are provided with the block 111 of protrusion, and be all provided with protruding button 112 at block 111 both sides places, its pedestal 11 front sides are positioned at 12 below places, docking section and laterally cut open and be provided with a buckle groove 113, and be positioned at pedestal 11 two bottom sides places and be provided with reference column 114, only the pedestal 11 of the relevant pedestal 1 of this part with docking section 12(as hyoplastron or slot) shape with to construct design a lot, and the contact site 131 of this terminal group 13 also can carry out multistage bending according to the difference of actual demand or structural design, so group forms the electric connector use of different kenels, all other do not depart from the equalization completing under the skill spirit that the utility model discloses to be changed and changes with modifying, all should be contained in the scope of the claims that the utility model contains.

This first housing 2 is for being positioned pedestal 11 outsides of pedestal 1, and be formed with in the first housing 2 inside and can stretch into docking space 20 in the inner for docking section 12, and the 20 top places, docking space of the first housing 2 have top board 21, and be provided with relative holding part 23 on the side plate 22 of establishing in top board 21 places, both sides, on its holding part 23, there is the elastic fastening plate 231 of the outer turnover of at least one direction forward, and cut open and be provided with profile groove 232 at each elastic fastening plate 231 periphery places, cut open forward and be positioned at holding part 23 rear side places on the side plate 22 of the first housing 2 short slot 221 being provided with corresponding to stopper slot 14 places of pedestal 1, and below short slot 221, locate all to extend outwardly and be provided with vertical welding foot 222.

But, the top board 21 both sides places of said first shell 2 are provided with plural through hole 211 and are positioned at the catching groove 212 at through hole 211 rears, and cut open forward and be provided with a draw-in groove 213 in top board 21 rear side centre, and be positioned at draw-in groove 213 both sides places and be all provided with the barrier sheet 214 of downward bending; Separately, the 20 below places, docking space of the first housing 2 have base plate 24, and are provided with corresponding to the plural number at through hole 211 places and support shell fragment 241 at base plate 24 internal face places, and respectively support shell fragment 241 periphery places and also cut open and be provided with profile groove 242.

This second housing 3 has a base portion 31, and be provided with relative clamping part 33 on the side plate 32 of establishing in base portion 31 places, both sides, the spacing catch 332 that there is at least one button hole 331 on its clamping part 33 and inwardly transferred towards the rear by button hole 331 leading edge places, and be positioned at spacing catch and be all formed with a profile groove 333 in both sides place Shang Xia 332, and the internal face place that is positioned at clamping part 33 rears on the side plate 32 of the second housing 3 is provided with the snapping sheet 34 of direction turnover forward, and cut open and be provided with profile groove 341 at snapping sheet 34 periphery places, its snapping sheet 34 ends are all formed with one and support end 342, and support end 342 and be formed with kink 343 adjacent to profile groove 341 places, again, the surperficial both sides of base portion 31 place of the second housing 3 is provided with plural open-work 311, and extend outwardly and be provided with the location foot 35 of the poor shape of continuous segment by side plate 32 bottom side places, its location foot 35 ends have the Extendible flake 351 of level, and each Extendible flake is all provided with a perforation 352 on 351 surfaces, then be formed with the upwards skewed kink 353 of bending at Extendible flake 351 adjacent to side plate 32 places.

Please arrange in pairs or groups and consult Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, be respectively the three-dimensional exploded view of the utility model preferred embodiment before assembling, stereo appearance figure when assembling, three-dimensional top plan view after top plan view and assembling, by knowing and find out in figure, when the utility model is in the time assembling, first pedestal 1 is pushed in docking space 20 by the first housing 2 rear opening parts, its docking section 12 just can be inserted in docking space 20 and form a vacant state, and the block 111 that makes pedestal 11 is embedded in the draw-in groove 213 of top board 21, and be pushed into behind location until pedestal 11, just the protruding button 112 of pedestal 11 can be held in the catching groove 212 of top board 21, and the barrier sheet 214 that makes top board 21 is held in pedestal 11 formation block location, rear side places, and the base plate 24 rear side places of the first housing 2 are embedded in the buckle groove 113 of pedestal 11 and are a location, the first housing 2 is covered be positioned pedestal 1 combined outside to become one.

Continuous top board 21 surfaces that the base portion of the second housing 3 31 internal face places are held in to the first housing 2 downwards, support displacement by passing before backward to be positioned on the second housing 3 to do to slide in base portion 31 again, its side plate 32 front side places just can ejection on the elastic fastening plate 231 of side plate 22 holding parts 23, and the effect that makes elastic fastening plate 231 be subject to ejection produces inside strain, and treat that the second housing 3 is pushed into location, can make to be held in button hole 331 corresponding on side plate 32 clamping parts 33 after the process of elastic fastening plate 231 via strain and reset, and spacing catch 332 ends are subject to stopping of elastic fastening plate 231 and the second housing 3 can not be slided backward present the spacing of X-direction and Z-direction, on side plate 32, be positioned at the snapping sheet 34 at clamping part 33 rear places by being held in stopper slot 14 corresponding on pedestal 11 before backward, and the kink 343 that makes snapping sheet 34 through and short slot 221 places that are positioned at the first housing 2 present the spacing of Z-direction, make the second housing 3 can not present the spacing of X-direction and Z-direction to front slide by supporting after end 342 is held on the stop surface 141 at stopper slot 14 inner side places again, and support end 342 and can be subject to stopping of side plate 22 internal face places and make the second housing 3 present the spacing of Y direction, this kind the second housing 3 becomes one for utilizing the assembling of slip manner to be positioned the first housing 2 combined outside, and coordinate pedestal 1 can present the positioning states of the mutual inlay card of XYZ tri-direction of principal axis, do not need to use radium-shine spot welding mode the first housing 2 and the second housing 3 can be carried out to combination firmly yet, the selection of the another kind of mode of production of manufacturer is provided and can be only limited to radium-shine spot welding mode, and there is the stable effectiveness that stops location and retaining.

And in the process of the second housing 3 slide displacements, the side plate 22 rear side places that can make the first housing 2 backward ejection on the spacing catch 332 of side plate 32 clamping parts 33, the effect that its spacing catch 332 is subject to ejection just can produce outside strain, and treat that the second housing 3 is pushed into location, just the elastic fastening plate of holding part 23 231 can be held in after the process via strain and reset in the button hole 331 of clamping part 33, or elastic fastening plate 231 is held in to spacing catch 332 ends is a location, and can be held in and on side plate 22, there is suitable elasticity prestressing by spacing catch 332, the second housing 3 difficult situation that produces skew or rock while fastening of sliding is occurred, to guarantee integrally-built stability, and then reach Stability Analysis of Structures, assemble effect easy and with low cost.

Please refer to Fig. 2, Fig. 7, shown in Fig. 8, be respectively three-dimensional exploded view of the present utility model, three-dimensional top plan view after preferred embodiment assembling and the stereo appearance figure of another preferred embodiment, by knowing and find out in figure, electric connector of the present utility model is for can be applicable to host computer, notebook computer, on the circuit board 4 of panel computer or other electronic installation inside, pedestal 1 can be positioned on circuit board 4, and the reference column 114 that makes pedestal 11 bottoms is embedded in downwards in the conjugate foramen of circuit board 4, and each weld part 132 of terminal group 13 is positioned respectively contact (not shown) place corresponding on circuit board 4, after each welding foot 222 at the first housing 2 side plate 22 2 side-lower places being piercing in respectively in the jack of circuit board 4 simultaneously, utilize respectively the more firm weldering of mode of surface adhering technical (SMT) or plug-in unit (DIP) welding to be located on circuit board 4, and form good electric connection.

When pedestal 1 and the first housing 2 are for after being positioned on circuit board 4, can make the location foot 35 at the second housing 3 both sides places for to be held on circuit board 4 with Extendible flake 351, recycling perforation 352 interior worn retaining elements 36 make the second housing 3 in conjunction with being positioned on circuit board 4 or casing, and the better enforcement of retaining element 36 can be a screw, but in the time of practical application, also can be a rivet, set bolt or other element equivalence with fixed function are implemented, if during as an example of screw example, retaining element 36 can be penetrated in the perforation 352 of location foot 35, being screwed in lockhole corresponding on circuit board 4 or casing or nut utilizes interlocking fixed form to be combined into one again, overall structure is more firm.

In the plug (not shown) of outside electric connector is plugged in the docking space 20 of the first housing 2, and form while being electrically connected with the contact site 131 of terminal group 13 on pedestal 1 docking section 12, because pedestal 1 is plugged or collide strength, just can be passed on the weld part 132 of terminal group 13 and the welding foot 222 of the first housing 2 and relatedly cause it to produce displacement deformation or structural deterioration, make electric connector easily produce upwards to start or the situation of double swerve occurs simultaneously, the location foot 35 that just can rely on the second housing 3 both sides places pins down the first housing 2 in conjunction with being positioned on circuit board 4 or casing, while making pedestal 1 be plugged or collide strength, the unlikely generation of restriction that the first housing 2 is subject to the second housing 3 reaction forces upwards starts, the situation of double swerve or structural deterioration occurs, prevent that the weld part 132 of terminal group 13 and the welding foot of the first housing 2 222 and the solder structure on circuit board 4 are damaged simultaneously, and because of the first housing 2 and the second housing 3 one-body molded by metal material institute, can there is dual shield effect by the first housing 2 and the second housing 3, with the Electromagnetic Interference (EMI) and the cross-talk that effectively suppress or filtered signal when transmission produces, make overall signal transmission quality more stable and reliable.

More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skills understand, in the case of not departing from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but within all falling into protection range of the present utility model.

Claims

1. an electric connector, is characterized in that, comprising:

2. electric connector according to claim 1, it is characterized in that: the clamping part of this second housing is inwardly transferred and had on the side plate that is held in this first housing and can supply this elastic fastening plate clasp spacing catch thereon towards the rear by this button hole leading edge place, and is all formed with profile groove at this upper and lower both sides of spacing catch place.

3. electric connector according to claim 2, it is characterized in that: the stopper slot inner side place of this pedestal is formed with the stop surface of scalariform, and on the side plate of this first housing, be positioned at this holding part rear side place and cut open forward the short slot being provided with corresponding to this stopper slot place, the snapping sheet periphery place of this second housing is provided with profile groove for cuing open, and being all formed with the end that supports on the stop surface that is held in this stopper slot in this snapping sheet end, this supports holds the kink that is formed with through and is positioned at this short slot place adjacent to profile groove place.

4. electric connector according to claim 1, it is characterized in that: the stopper slot inner side place of this pedestal is formed with the stop surface of scalariform, and on the side plate of this first housing, be positioned at this holding part rear side place and cut open forward the short slot being provided with corresponding to this stopper slot place, the snapping sheet periphery place of this second housing is provided with profile groove for cuing open, and being all formed with the end that supports on the stop surface that is held in this stopper slot in this snapping sheet end, this supports holds the kink that is formed with through and is positioned at this short slot place adjacent to profile groove place.

5. according to the electric connector described in any one in claim 3 to 4, it is characterized in that: on the side plate of this first housing, be positioned at this short slot below place and extend outwardly and be provided with vertical welding foot, and cut open and is provided with profile groove at elastic fastening plate periphery place on this side plate.

6. according to the electric connector described in any one in claim 1 to 4, it is characterized in that: the pedestal top of this pedestal is provided with the block of a protrusion, and be provided with protruding button at this block both sides place, the top board both sides place of this first housing is provided with and can supplies this protruding button clasp catching groove in the inner, and cut open forward at this top board rear side place to be provided with and can supply this block inlay card draw-in groove in the inner, and be positioned at the barrier sheet that this draw-in groove both sides place is provided with downward bending and is held in this pedestal rear side place.

7. according to the electric connector described in any one in claim 1 to 4, it is characterized in that: the docking section of this pedestal has a hyoplastron, and on this hyoplastron, be positioned with the terminal group of a side place tool contact site, and the opposite side place with respect to this contact site is provided with the weld part that is piercing in this pedestal outside, then is formed with and can stretches into docking space in the inner for this docking section in this first enclosure interior.

8. according to the electric connector described in any one in claim 1 to 4, it is characterized in that: below, the docking space of this first housing place has a base plate, and be provided with plural number at this plate inner wall face place and support shell fragment, and those support shell fragment periphery place and cut open and be provided with profile groove.

9. according to the electric connector described in any one in claim 1 to 4, it is characterized in that: the location foot end of this second housing has the Extendible flake of a level, and be provided with perforation on this Extendible flake surface, and this Extendible flake is formed with the upwards kink of bending adjacent to this side plate place.

10. electric connector according to claim 9, is characterized in that: in the perforation of this location foot, be equipped with a retaining element.