CN2470976Y

CN2470976Y - Electrical connector

Info

Publication number: CN2470976Y
Application number: CN01202918U
Authority: CN
Inventors: 江圳祥
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2001-01-29
Filing date: 2001-01-29
Publication date: 2002-01-09
Anticipated expiration: 2011-01-29

Abstract

The utility model provides an insulation shell and a metal shell cover thereof for electrical connector. Besides good cover effect, the metal shell can greatly reduce production cost and assembly cost. Moreover, the utility model provides an engagement part formed by integrally extending two sides of the metal shell to assist joint by engaging with the engaging piece at the side wall surface of the insulation shell; beside the advantage of fast joint, the utility model can further enhance combination strength; and good structure strength can be achieved owning to the integral extension of the pin from the engagement part.

Description

Electric connector

The utility model is about a kind of electric connector, especially a kind of electric connector insulation shell of finger and integrated covering thereof are used metal shell, metal shell both sides suitable and the chimeric fitting portion of insulation shell sidewall surfaces dummy slider that respectively extend back, this fitting portion and further extend one in order to the foot section of printing setting-in.

Press, be installed on the electric connector of printed circuit board (PCB),, generally include the complex root metal terminal and be laid in an insulation shell inside, and the projection of this housing is usually with the metal shell of a tool multi-functional as typical " D-type " type electric connector etc.This metal shell be in protecting and strengthen electric connector housing with butt connector terminal inserting state, and can reduce the electromagnetic radiation effect of electric connector in operation, and this electric connector one grounding function is provided.In addition, this shell also provides attachment point or the attachment structure that electric connector machinery is installed on circuit board.

Known above-mentioned metal shell structure, in be in early days by plural piece metal lamellar body with riveted joint or screw-in version be combined into, it is not only during production costs, and the anxiety that has electromagnetic radiation to leak in each interelement that continues.With regard to practical function, this sectional casing also is not suitable for the automatic printing circuit board assembling of machine formula arm, then be have integrated metal shell in response to and give birth to.

As shown in Figure 1, it shows once typical case " D-type " the circuit board electric connector of improveing 5 and covers with metal shell 6.This electric connector 5 comprises an insulation shell 51, it has from one of the outstanding D shape Plug Division 52 of bigger body 53 forwards, enclosure interior then comprises complex root metal terminal 7, wherein each terminal 7 comprises an inserted terminal 71 that is inserted in Plug Division 52 perforation 54 inwalls, and from the downward welding ends 72 that extends of housing 51 rear sides.6 of metal shells comprise a suitable ring-type projection 61 that closely coats aforementioned Plug Division 52, and the one openend also radially extends a plane bead 62 towards periphery, and is resisted against a shoulder 55 that radially extends from housing Plug Division 52 base portions.Lower end, the both sides corner of the plane bead 62 symmetries foot section 63 of extending out of the ordinary, wherein two foot section 63 come down to be positioned at same plane and perpendicular to plane, bead 62 place.Foot section 63 is to be arranged at circuit board (not shown) upper surface and this electric connector is positioned circuit board surface.Also can offer perforation 64 on the foot section 63, and mat bolt, rivet or similar fastener are further strengthened the electric connector locating effect.Each foot section 63 is away from the end of bead 62 directions, curved downwards two parallel and the pin 65A and the 65B of landscape configuration that establish out of the ordinary, and the pin lower end then slightly is a lozenges 66A, 66B (not shown).

In the electric connector installation exercise, every pair of pin 65 is passed down through circuit board jack (not shown), makes lozenges 66 upper limb 67A, 67B (not shown) fit and fasten in circuit board bottom surface.In 66 contact circuit plate jack hole wall moments of lozenges, pin 65 is bending toward each other earlier, then soon recoils to its initial separation, and forces its upper limb 67 outwards to fasten in the circuit board bottom surface below by this.In addition, if the circuit board lower surface has earthed circuit, pin 65 also can be soldered to this circuit to have the ground connection effect concurrently.

In the above-mentioned known techniques improvement example, use metal shell 6 though further disclose covering of the one-body molded foot section 63 of a tool, and pins 65 that this foot section 63 of mat is extended are fixed in the circuit board jack downwards.The microscler foot section 63 that thought extends back from metal shell 6 in this example, do not link with insulation shell 51, so its intensity a little less than, once it bears the continuous contact engaging and separating force or the excessive application of force, very easily directly be passed to pin 65 and cause foot section 63 distortion through foot section 63, or cause getting loose gradually between pin 65 and corresponding circuits plate jack, and reduce the secure bond effect between electric connector group body and circuit board.

In addition in the U.S. the 4th, 938, in No. 704 patent cases, then further disclose the combination of a kind of metal shell and insulation shell, this metal shell comprises a ring-type projection of suitable tight coated insulation housing Plug Division equally, and the one openend radially extends a plane bead towards periphery, lower end, the both sides corner of the plane bead symmetry foot section of extending out of the ordinary, with the different person of above-mentioned known techniques, its pin is to be positioned at the about length middle position of foot section inboard, vertical leg portion and projection downwards; The Plug Division base portion of its insulation shell also radially extends a shoulder, and further from shoulder two side bottoms to vertical extent one stationary plane backward, and in shoulder corresponding to metal shell foot section and bead junction, plane, and stationary plane is corresponding to metal shell pin leading edge place, offer the line of rabbet joint of suitable length respectively, so that when metal shell and the insulation shell combination, metal shell foot section and its pin, suitable forward is arranged in the line of rabbet joint that insulation shell shoulder and stationary plane are offered, and further combining between reinforced metal shell and insulation shell arrested the limit effect.

Only the line of rabbet joint that disclosed of above-mentioned patent case wears combination, will make metal shell pin direction be limited by the corresponding insulation shell line of rabbet joint relatively, and as shown in Figure 1 in the known techniques, and pin 65 is to be parallel to plane bead 62 and to dispose; Easy speech, this patent case can't be applicable to that the jack direction of circuit board correspondence is not inconsistent, or other installation elements still be arranged and the occasion that can't change the circuit board jack position, lack flexibility so its practicality is very limited.

In view of this, for effectively improving above-mentioned electric connector and covering with the shortcoming in the metal shell combination, this case creator then is engaged in the many years of experience of the sector with it, and the active research improvement is by the generation that the utility model " electric connector " arranged.

Monic purpose of the present utility model is to be to provide a kind of electric connector and the integrated metal shell that covers, and this metal shell both sides fitting portion trailing edge more extends a foot section, further electric connector be fixed in circuit board and have the ground connection effect concurrently.The packing interaction of its mat metal shell both sides fitting portion and insulation shell sidewall surfaces dummy slider except that in conjunction with quick, also can further be strengthened the combined strength of this combination and foot section.

Of the present utility model time a purpose is to be to provide a kind of electric connector and the integrated metal shell that covers thereof, this metal shell is except that the good capture-effect of tool, since its integrated characteristic, the tool better structural strength, and can significantly reduce and make and assembly cost.

The electric connector that the utility model disclosed mainly is to be made of electric connector insulation shell, the metal shell that is placed in complex root metal terminal in the insulation shell and coats this housing antetheca and Plug Division.Wherein insulation shell two side outer surface each prominent establish rectangular without exception dummy slider, and each vertical extent one fitting portion backward of metal shell both sides, respectively offer a suitable and chimeric embedding hole of insulation shell sidewall surfaces dummy slider on the fitting portion, the whole tightness that multiple by this heavy insulation housing engages with metal shell.

The fitting portion trailing edge to the inside further bending extend a foot section, its end is circuit board direction projection one installation component downwards, be inserted in circuit board jack, keep the locating effect of electric connector by this in circuit board.If the circuit board lower surface has earthed circuit, this installation component also can be soldered to this circuit to have the ground connection effect concurrently.

Relevant the utility model is to reach technological means and the effect thereof that above-mentioned purpose, feature adopt, and routine now preferred embodiment also cooperates graphic being described as follows:

Fig. 1 is the three-dimensional exploded view of a known electric connector.

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

Fig. 3 is the utility model electric connector three-dimensional combination figure of another viewpoint.

Explanation of essential reference numerals in drawings:

1 insulation shell, 11 diapires

12 roofs, 13 antethecas

131 Plug Divisions, 14 rear walls

16 perforates of 15 sidewalls

17 caulking grooves, 171 buttons support portion

18 dummy sliders, 19 terminal channels

2 metal shells, 21 projections

22 screws, 23 fitting portions

24 embedding holes, 25 foot section

26 installation components, 27 burnishing surfaces

28 stators, 281 buttons support the hole

3 metal terminals, 31 inserted terminals

32 welding endss

Please refer to Fig. 2 and Fig. 3, according to the electric connector that the utility model disclosed, mainly is to be made of an insulation shell 1, a metal shell 2 and complex root metal terminal 3.This insulation shell 1 comprise one contiguous and be parallel to the circuit board (not shown) diapire 11, a roof 12 parallel with this diapire 11, be provided with an antetheca 13, a rear wall 14 of a Plug Division 131 and be positioned at two side 15 between this front and back walls.Wherein a perforate 16 is respectively offered in antetheca 13 both sides, and roof 12 and diapire 11 walls respectively are concaved with slightly rectangular caulking groove 17, and caulking groove 17 surfaces are equipped with button and are supported portion 171, and it turns forward and be a lozenges from insulation housing 1 rear side.Two side 15 outer surfaces and each prominent rectangular without exception dummy slider 18 of establishing.

Insulation shell 1 inside is provided with a plurality of pre-and post perforative terminal channels 19, be equipped with a metal terminal 3 in each terminal channel 19 respectively, wherein each terminal comprises the inserted terminal 31 that is disposed at Plug Division 131 inwalls, and extend from housing 1 rear wall 14 that insulate, in order to the welding ends 32 that electrically connects with circuit board.In present embodiment, Plug Division 131 is that vertically to be stretched on antetheca 13 outer and be a cuboid or D shape, so also can cooperate the electric connector Plug Division shape that is complementary with it and changes.

Metal shell 2 is to be made into integration by the conducting metal lamellar body, and the antetheca 13 of its mat coated insulation housing 1 and Plug Division 131 constitute a bridging effect.Metal shell 2 is to cooperate to be stretched on antetheca 13 Plug Divisions 131 shapes in present embodiment, and extends the projection 21 of a suitable tight fit Plug Division 131 forward, and its slightly rectangular body also has an opening.2 two of metal shells are also respectively offered a screw 22, and its position is corresponding to 13 two perforates 16 of insulation shell 1 antetheca.

Each vertical extent one fitting portion 23 backward of metal shell 2 both sides is respectively offered the chimeric embedding hole 24 of the surperficial dummy slider of suitable and an insulation shell 1 sidewall 15 18 in the fitting portion 23.Fitting portion 23 trailing edges upper end projection backward also further inwards bends a horizontal foot section 25, and its end circuit board direction projection downwards one installation component 26 is to be inserted in the jack of circuit board correspondence.Owing to be to adopt surface adhering technology (SMT) to combine between electric connector terminal 3 and circuit board in the present embodiment,, but go out from the upper end projection of fitting portion 23 trailing edges so above-mentioned foot section 25 is cooperation circuit board installation site; Right if terminal 3 is to adopt perforation (through hole) to engage or other joining techniques with circuit board, foot section 25 projection positions can be positioned at lower end or other appropriate locations of fitting portion 23 trailing edges naturally.Installation component 26 can be a projection shape, also can further make the plate lock (board lock) with two bifurcated pins, or is suitable for firmly being inserted in other shapes of circuit board jack.

Also vertical extent one can be for the burnishing surface 27 of vacsorb device absorption backward for metal shell 2 upper limbs, burnishing surface 27 both sides also respectively are symmetrical arranged rectangular without exception, the stator 28 that the caulking groove 17 of suitable and insulation shell 1 roof 12 is corresponding, on the stator 28 and offer button and support hole 281, it is when stator 28 is embedded in caulking groove 17, and mat is buckled to the hole 281 and buckled to be butted on to buckle to portion 171 and further strengthen its fixing effect.Also be equipped with plural piece stator 28 in metal shell 2 lower edges in addition, it is also in like manner to be embedded in plural number place caulking groove 17 (not shown) of insulation shell 1 diapire 11.

By above-mentioned structural property, in insulation shell 1 of the present utility model and metal shell 2 bonding states, from the vertically extending backward burnishing surface 27 of metal shell 2 upper limbs, and from the metal shell 2 upper and lower edge plural piece stator 28 of projection backward, be the plural number place caulking groove 17 that is embedded in insulation shell 1 roof 12 and diapire 11 correspondences respectively, make by this between the top, bottom of insulation shell 1 and metal shell 2 and produce a location packing interaction.

And the embedding hole 24 of 2 liang of fitting portions 23 of metal shell, suitable embedding is sandwiched in the dummy slider 18 of edge housing 1 sidewall 15, makes the both sides of insulation shell 1 and metal shell 2 produce a location packing interaction by this.This fitting portion 23 can just be bent into chimerism as shown in the figure after metal shell 2 is assembled in insulation shell 1.

In addition, but also mat installation component 26 is inserted in the interference combination that the corresponding jack of circuit board produces, and temporarily is positioned on the circuit board, then this installation component 26 is welded in circuit board.Be among the embodiment of a plate Lock structure in installation component 26 in addition, this plate lock end is two pins of bifurcated for symmetry tool elastic reaction, with the corresponding jack combination of circuit board of its plant, keep the locating effect of electric connector by this in circuit board.If the circuit board lower surface has earthed circuit, this two pin also can be soldered to this circuit to have the ground connection effect concurrently.

By above-mentioned structural property, the advantage of the insulation shell of the utility model electric connector and metal shell combination is:

One. owing to the metal shell of tool capture-effect in the utility model and in order to the foot section that is fixedly installed in circuit board is to be formed in one, and the preferable electromagnetic radiation of its tool is covered and the ground connection effect.

Two. the combination between metal shell and insulation shell, the plural piece stator of mat metal shell is embedded at corresponding insulation shell top, the plural number place caulking groove of diapire face, the embedding hole embedding of metal shell two fitting portions and is sandwiched in insulation shell two side dummy slider respectively, and metal shell is coated on the insulation shell antetheca, reaches multiple by this and locatees chimeric effect closely.

Three. as previously mentioned, installation component is independently to extend to the circuit board direction from the foot section end, be not subjected to the inflexible limit of this foot section or insulation shell relative position, so the relative configuration between installation component and circuit board is than tool elasticity, as this installation component is a plate latch mechanism person, and the plane that its two pin forms can be perpendicular or parallel with the insulation shell rear wall and all can.

In sum, the utility model " electric connector " really can the above-mentioned structure that discloses of mat, device, reaches its intended purposes and effect, and does not see the also unexposed use of publication before the application, meets the important documents such as novelty, progress of novel patent.

Only, above-mentioned graphic and explanation of taking off only is embodiment of the present utility model, and is non-for limiting enforcement of the present utility model; All personages who is familiar with this technology, its other equivalences of doing according to this practical feature category change or individual decorations, all should be encompassed in the claim of following this case.

Claims

1. electric connector is to be installed on the circuit board and to produce with this circuit board and to electrically connect, and it is characterized in that this electric connector comprises:

One insulation shell comprises the antetheca, a rear wall and the two side that are provided with the Plug Division, and each prominent dummy slider of establishing of this two side is in this insulation shell and be provided with a plurality of terminal channels;

The complex root terminal is placed in respectively this terminal channel respectively;

One metal shell is in order to covering this insulation shell, these metal shell both sides fitting portion that respectively extends back, and on these fitting portions, respectively offer suitable and the chimeric embedding hole of these dummy sliders, and this fitting portion trailing edge also extends one and combines the foot section of fixing with circuit board.

2. electric connector as claimed in claim 1 is characterized in that, these foot section are to extend back from this fitting portion trailing edge upper end.

3. electric connector as claimed in claim 2 is characterized in that, these foot section are inwardly horizontal expansion further.

4. electric connector as claimed in claim 1 is characterized in that, terminal projection one installation component downwards of these foot section is to be inserted in the corresponding jack of this circuit board.

5. electric connector as claimed in claim 4 is characterized in that, this installation component can further electrically connect with this circuit board.

6. electric connector as claimed in claim 5 is characterized in that, installation component is the plate lock with two bifurcated pins.

7. electric connector as claimed in claim 5 is characterized in that, installation component is to be a projection.

8. as each described electric connector in the claim 1 to 7, it is characterized in that this insulation shell and metal shell are respectively equipped with embedding and the stator that is clasped mutually.

9. electric connector as claimed in claim 8 is characterized in that, this caulking groove surface further is equipped with a button and is supported portion, supports a button that portion's button supports to portion and offer suitable and this button in this stator.

10. electric connector as claimed in claim 8 is characterized in that, this stator is upper limb and a lower edge of being located at this metal shell.