CN1203589C

CN1203589C - Electric connector for shield

Info

Publication number: CN1203589C
Application number: CNB991095359A
Authority: CN
Inventors: 杨宗霖; 林政德
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 1999-06-19
Filing date: 1999-06-19
Publication date: 2005-05-25
Anticipated expiration: 2019-06-19
Also published as: CN1278667A

Abstract

The present invention relates to a shielding electric connector 20 which comprises an insulating casing 22, a plurality of terminals and an integral shielding piece 26, wherein the insulating casing 22 is provided with a body 28 and a matching part 30; the matching part 30 is projected forwards from the body 28; the terminals are installed on the body of the casing; each terminal comprises a contact part 38 on the matching part 30; a seamless cover part 52 stretches out from a metal board forming the casing, is projected forwards from the casing, and approximately encircles the matching part of the casing. A double-function grounding structure 72 is projected from the shielding piece; the double-function grounding structure 72 comprises an installing supporting leg 86 which is connected with an adaptive grounding line on a circuit board 92 installed on a socket; meanwhile, a jointing projecting pin 88 of a panel extends from the installing supporting leg 86 and is used for grounding the shielding piece to an adaptive grounding line of a panel 94. a back cover 70 of the shielding piece comprises an inner locking pin 78 and an outer locking pin 80 which are engaged with the inner side wall of the shielding piece.

Description

The electrical connector of shielding

Technical field

The present invention relates generally to a kind of electrical connector technology, relate in particular to a kind of connector that shields at import and export towards electromagnetic interference and radio frequency interference.

Background technology

In circuit, often be provided with system emission or enter the electromagnetic interference (EMI) of system and the protection of radio frequency interference (RFI).Although EMI and RFI are used alternatingly now usually, EMI is used to contain in the electromagnetic spectrum energy always and takes place Anywhere, and RFI is confined to the interference in the radio communication frequency bands always.The energy of EMI both can result from the system and also can result from outside the system.Outside EMI energy can disturb the operation of intrasystem electronic equipment, and inner EMI energy then can produce " cross-talk " and " noise " that can cause the misdata transmission.

Electrical connector is because the opening of numerous voltage contact area and electric connection terminal, cable, the destruction of destroying the EMI energy especially easily.A kind of typical electrical connector comprises that one is equipped with the insulation shell of plurality of conductors terminals.This housing can have forward a mating part.In order to prevent that connector is subjected to the destruction that the EMI energy causes, centering on described insulation shell and particularly shielding part is being set around its mating part, such shielding part is normally made by the drawing of conductor metal plate of material.This sheet metal is stamped, and is shaped then or is bent into the obturator that is used for plug shell, and on the adjacent edge of sealing, the sheet metal of shaping produces a slit.Such slit has intrinsic breach or deployment opening usually, in use just produces bigger breach, makes the EMI energy enter and/or overflows.In addition, shielding part, and can not be fixed with the connector that cooperates not only for plug shell has produced a unstable closure member at the deployment opening at slit place.In order to address these problems, sealing off gap usually, by welding, brazing etc., but this is than original simple structure and cheap element costliness more.The present invention solves the problems referred to above by a shielding part is provided, and this shielding part is a seamless cover at least near the mating part of plug shell.

Can produce other problem when effective lock bolt being set at the bonnet of this shielding part of bending with for lid.Further the seam crossing that also is included on panel or the backboard of problem is installed the connector of these shieldings, and the connector of described shielding is being installed on the printed circuit board (PCB) and is being grounding to described shielding part on the panel and/or on the circuit board.The invention solves these all problems, it comprise one with shielding part be the structure of the double duty of one, the structure of this double duty had both been linked shielding part on the panel, also linked on the circuit board simultaneously.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of novelty and follow-on electrical connector with shielding of described feature.

According to an aspect of the present invention, provide a kind of electrical connector of shielding, it comprises: an insulation shell, and it comprises a body and a part that matches, this part that matches is protruded forward from described body; Some terminals, it is installed on the body of housing, and these some terminals are included in the contact part on the described part that matches; With a bulk shielding part on housing, and it comprises a shell and a seamless cover part, described shell is on the major part of the body of housing, and described seamless cover part is protruded forward from shell, and the part that matches around housing, it is characterized in that described bulk shielding part comprises that a panel that extends from it engages the outstanding tip of ground connection; And described electrical connector comprises an integral installation leg, and it engages the outstanding tip of ground connection from described panel and protrudes, and is used for being connected with a earth connection that adapts on the circuit board installed on the socket.

According to another aspect of the present invention, provide a kind of electrical connector of shielding, it comprises: an insulation shell, and it comprises a part that matches that aligns with the opening of panel; With a conductor screen spare, it is around the housing major part and comprise that one installs leg, it is used for being connected with a earth connection that adapts on the circuit board installed on the socket, engage the outstanding tip with a panel, it extends from leg is installed, and is used for shielding part is grounding to the earthing device of the adaptation of described panel.

In exemplified embodiment of the present invention, described connector comprises the housing of an insulation, and it has the mating part that protrudes forward on the main body.Some terminals are installed on the main body of housing, and include contact portion on the housing mating part.All-in-one-piece shielding part is installed on the housing, and comprises a shell on the essential part of housing body, and seamless cover part is roughly protruded forward from shell around the described mating part of housing.

Disclosed herein, the seamless cover sheet of metallic material stretch forming of bulk shielding part.The shell of bulk shielding part is that the wall by the described metal material plate stamping and forming of some usefulness is constituted.

Bulk shielding part of the present invention comprises a bonnet, and this bonnet is hinged in first back edge of its first edge and shell.Described bonnet comprises one second edge, has inside and outside lock pin to be used for being meshed with second back edge of shell on this second edge.Should in lock pin constituted by a snap lock arm, be used for being meshed with hole on the shell that is close to its second rear edge.

The present invention also imagines the measure of the earthing device of a dual function, and the earthing device of this dual-use function protrudes from the bulk shielding part.Particularly insulation shell match the part with panel on opening align.One installs leg protrudes from the bulk shielding part, be used for be installed in connector on the adaptation earth connection of circuit board be connected.One panel engages the outstanding tip and stretches out from leg is installed, and is used for the ground connection mutually of the adaptation earthing device on shielding part and the panel.Described installation leg and the outstanding tip device of described panel joint are positioned at matching partly of contiguous housing and center on the position of seamless cover herein.

Other purpose of the present invention, feature and advantage thereof become clearer from following detailed description with the accompanying drawing.

The present invention in conjunction with its purpose and advantage thereof, can know understanding more from following description taken together with the accompanying drawings, same numeral is represented same parts among the figure.

Description of drawings

Fig. 1 is the perspective view of the connector assembly of a plug and socket in the prior art;

Fig. 2 is the partial vertical cross sectional view that roughly runs through socket along Fig. 1 center line 2-2;

Fig. 3 is the view that is similar to Fig. 2, has the plug that inserts in the socket;

Fig. 4 is the exploded rear perspective view of first execution mode of a socket connector of the present invention;

Fig. 5 is the rear view after the socket assembling among Fig. 4;

Fig. 6 one shows the how perspective view of punching press and stretching from metallic sheet material of described shielding part;

Fig. 7 is the partial vertical cross sectional view that runs through socket among Fig. 5, has a plug that inserts wherein;

Fig. 8 is before the decomposition of second execution mode of a socket connector of the present invention/top perspective;

Fig. 9 is the back/top view that is similar to Fig. 8 parts;

Figure 10 is the preceding/bottom view that is similar to Fig. 8 parts;

Figure 11 is the back/bottom view that is similar to Fig. 8 parts;

Figure 12 is the view that is similar to Figure 11 parts, have the terminals of housing and insertion shielding part, but its bonnet remains unlimited;

Figure 13 is/top perspective that the whole connector that assembles up and its bonnet seal after the decomposition of second embodiment of the invention;

Figure 14 is the preceding/bottom perspective view that is similar to Figure 13 parts;

Figure 15 is the end view that is installed in the second embodiment of the invention on the circuit board behind a panel; With

Figure 16 is the plane view of bottom of connector among Figure 15.

Embodiment

Referring to accompanying drawing, at first be Fig. 1-3 carefully, showed a kind of bus connector assembly of series connection of traditional common, it comprises a socket and a plug, and general socket is 1 to represent, and plug is represented with 2.Described plug comprises a masked segment 3 that protrudes forward, and at the top of masked segment 3 a pair of groove 4 that blocks is arranged.Socket 1 comprises an insulation shell 5, and it has a part of protruding forward 6 that matches, and is fixed with some contact parts 7 that are installed in the terminals on the housing 5 on the part that matches 6.

As shown in Figure 2, socket 1 comprises a cuboid, promptly roughly is the shielding part 8 of box sample, and shielding part 8 surrounds the housing 5 and the part 6 that matches substantially.Described shielding part is stamped to form shape from sheet of metallic material, and after being shaped, comprises a slit 9, and it is always from anterior its rear portion of extending of shielding part.Open front 10 is shaped by four edges of a wing 11 and is used for accepting plug 2.Described shielding part is installed on the printed circuit board (PCB) by integral hanging erection support 12.A pair of upwards elastic arm 13 has arc surface electric contact part 14, and is that roof 15 from shielding part is stamped to form shape.A pair of elastic arm 16 is that all sidewalls 16 from shielding part are stamped to form shape.

As shown in Figure 3, when plug 2 inserts sockets, the blocking in the groove 4 of contact part 14 the masked segments that snap in plug once 3 of elastic arm 13.The contact part 7 of terminals contacts with the contact 18 of plug.

The slit 9 that a basic problem of the socket 1 of prior art as Figure 1-3 is drawing from shielding part 8 in use often separates.This has not only increased existing any gap in the slit that whole shielding part EMI advances/enter the mouth, and is used to accept opening 10 expansions of plug 2 and has produced one unfavorable fixing.Described expansion opening is owing to loose installation in Socket casing has also produced problems.

Fig. 4-7 shows first execution mode of socket of the present invention, and this socket is represented with 20, and is the type that is used for the universal serial bus connector assembly basically.At first referring to Fig. 4, socket 20 comprises an insulation shell substantially, and mainly by 22 expressions, it is equipped with some terminals, and these terminals are mainly by 24 expression and holistic shielding parts, mainly by 26 expressions.

Particularly, the housing 22 of socket 20 comprises a body 28 and a part 30 that matches, and this part 30 that matches is protruded forward from described body.Some terminals hold passage 32 and pass in the described body.The smooth flange 34 of one afterbody protrudes backward from the described body and comprises some grooves 36.

The terminals 24 of each socket 20 comprise contact part or arm 38 and a terminal portion or tail end 40.Described terminals are installed in (Fig. 4) on the housing 22 by contact arm 38 is inserted in the passage 32 with the direction of arrow " A ".Tail end 40 is pressed at smooth flange 34 places of the afterbody of housing and is fixed in the groove 36.The afterbody of each terminals has different length as can be seen, because be fixed with the passage 32 of different distance with respect to socket installation side or bottom.When terminals are installed in the described housing fully, below as can be seen, contact arm 38 is exposed outside the part 30 that matches.Housing 22 can be that the one piece material integral die forms, and this material is such as plastics or its similar insulating material.

The bulk shielding part 26 of socket 20 is from the punching press of conductor metal plate of material, stretching and be shaped.Described bulk shielding part comprises a shell, and mainly by 42 expressions, it is mainly around the body 28 of housing 22 and assembling.Described shell is to be formed with relative sidewall 48 by a roof 44, a diapire 46.Whole plate is installed folder 50 and is formed from 46 punching presses of diapire face, by described folder being inserted in the adaptation installing hole in the described plate, socket is installed on the printed circuit board (PCB).Bulk shielding part 26 comprises a seamless cover part 52, and it protrudes forward from shell 42.Described cover is mainly rectangular, is used for covering the contact part 38 of the match part 30 and the terminals 24 of housing 22.Seamless cover comprises some direct inside lacunas 54 that form on described wall.

Fig. 5 shows parts relevant with Fig. 4, that be in socket 20 under the condition that all assembles, described.The tail end 40 of terminals and plate installation folder 50 protrudes downwards from the socket that assembles as can be seen, is used for inserting in the adaptation hole of circuit board.Fig. 5 also shows another feature, and wherein the sidewall 48 of bulk shielding part 42 can extend bending, as at 56 places, forms back cover portion 58 around the rear portion of socket, and this back cover portion 58 links to each other at 60 places, wedge structure slit and interlocking.

Fig. 6 shows how punching press from the conductor metal plate of material of bulk shielding part 26, stretching be shaped (Fig. 4).Cover 52 is to be shaped from the stretched portion of sheet of metallic material, thereby is made of a jointless structure.At roof 44, diapire 46 and all sidewalls 48 before or after cover 52 stretches under the situation, can drawing from sheet of metallic material.Lacuna 54 can be pressed on all sidewalls of cover after stretching.Therefore, as can be seen, be drawn into a jointless structure, eliminated all shortcomings in slit 9 of the shielding part 8 of traditional socket 1 fully by covering 52.

Fig. 7 shows the plug that inserts in the socket 20 of the present invention.When it inserts, the blocking in the groove 4 of seamless cover 52 the masked segments that snapped in plug once 3, again one, the contact part 38 of socket terminals contacts with the contact 18 of plug.In the socket connector use, the seamless cover 52 of socket 20 can not be expanded.Fig. 7 shows lacuna 54 and has bigger flexible free end that separates.Yet lacuna 54 can also be shaped like this, and its two ends keep being connected on the cover 52.

Fig. 8-14 shows second execution mode that adopts the socket connector 20 that the invention is intended to.The identical label that is adopted among Fig. 8-14 is represented and the relevant described same parts of first execution mode among Fig. 4-7.Second execution mode is different from first execution mode three places substantially.The first, the second execution mode comprises a bonnet 70, and this bonnet 70 is locked on the shell 42 of shielding part 26, to guarantee to be unlikely at the rear portion of whole shielding part the forfeiture or the intrusion of EMI energy.The second, the ground structure of a dual function is set, mainly by 72 expressions, be used for a bulk shielding part 26 and the panel ground that joins, while and a circuit board be ground connection mutually.The 3rd, the roof 44 and the diapire 46 of shielding part comprise longitudinal slot, are represented by 44a and 46a respectively.

Especially, bonnet 70 has been sealed the whole after-opening of shell 40, and the whole after-opening of this shell 40 is by the boundary that back edge is enclosed of roof 44, diapire 46 and all sidewalls 48.Described bonnet hingedly links to each other with the back edge of one of sidewall 48 at its 74 places, first edge.In order to reduce stressed at 74 places, first edge, 74 places have formed series of grooves 74a at first edge.Second edge 76 of described bonnet comprises lock pin 78 and a pair of outer lock pin 80 in one, and it is used for back edge 82 is meshed with relative sidewall 48.Described lid is by a whole hinge area of 74 links to each other with described shell along the edge.Interior lock pin 78 has the latch hook 78a of drawing from it.

Interior lock pin 78 is arranged to a snap lock arm.Outer lock pin 80 is arranged to a pair of edge of a wing.As Figure 13, when bonnet 70 sealings, interior lock pin 78 moves to the inside of sidewall 48, in latch hook 78a a hole 82 that snaps in sidewall once shown in the best.Therefore, the edge 83 of sidewall is sealed by the latch hook structure of bonnet 70 basically.

As Figure 10 and 12, particularly, described ground structure comprises that one installs leg 86 shown in ground structure the best of described dual-use function, and it roughly protrudes downwards from bulk shielding part 26 in the junction of contiguous seamless cover 52 and shell 42.Described installation leg is set is used for inserting in the hole in the circuit board, with on circuit board or the earth connection that adapts at described Kong Zhongyu one link to each other.A pair of flexible panel engages the outstanding tip 88 and protrudes forward from installing on the leg 86.When socket 20 was installed on the panel, seamless cover 52 passed or can align with the opening of panel at least.The outstanding tip 88 of elasticity engages with the rear side of panel, and can link to each other with the earthing device on the panel or contact with earthing device on the panel at least.Therefore, an independent ground structure 72 has been finished dual-use function, with bulk shielding part 26 and circuit board ground connection mutually, simultaneously with panel ground connection mutually.As can be seen, the installation leg 86 of ground structure shown in it is inserted the hole 90 of wearing in the circuit board 92 from Figure 15 and 16 for this, and simultaneously, resilient panel engages the outstanding tip 88 and engages with the rear side of panel 94.Panel engages the outstanding tip 88 and also is provided with antistatic protection.

Top longitudinal slot 44a is limited by top panel 48a, and this top panel 48a extends from the top of relative side walls 48, and bending forms roof 44.Top panel also is provided with the edge of a wing 96 that rotates, and it engages with a groove 98 on the top of the body 28 of housing 22, to guarantee that housing 22 is in shielding part 42 and prevent that slit 44a from splitting.

Bottom longitudinal slot 44a is limited by bottom panel 48b, and this bottom panel 48b extends from the bottom of relative side walls 48, and bending forms diapire 46.Described bottom panel 48b comprises the outstanding tip 100 that extends back, and it is housed inside in the groove 102 of diapire of body 28 of housing 22, thereby guarantees that housing 22 is in shielding part 42 and prevent that slit 46a from splitting.

Should be appreciated that do not breaking away under its essence or its central idea, the present invention can be embodied as other specific forms.Therefore, no matter from which aspect, the embodiment of the invention and execution mode have been interpreted as explanation and non-limiting, and the present invention is not limited to details given herein.

Claims

1, a kind of electrical connector of shielding (20), it comprises:

One insulation shell (22), it comprises that a body (28) and matches partly (30), this part (30) that matches is protruded forward from described body (28);

Some terminals, it is installed on the body of housing, and these some terminals are included in the contact part (38) on the described part (30) that matches; With

One bulk shielding part (26) on housing (22), and it comprises a shell (42) and a seamless cover part (52), described shell (42) is on the major part of the body (28) of housing, and described seamless cover part (52) is protruded forward from shell, and the part (30) that matches around housing

It is characterized in that described bulk shielding part (26) comprises that a panel that extends from it engages the outstanding tip (88) of ground connection; And

Described electrical connector comprises an integral installation leg (86), and it engages the outstanding tip (88) of ground connection from described panel and protrudes, and is used for being connected with the earth connection of an adaptation on the circuit board (92) installed on the socket.

2, the electrical connector of shielding as claimed in claim 1 is characterized in that, the seamless cover part (52) of described bulk shielding part (26) is by sheet metal (62) stretch forming.

3, the electrical connector of shielding as claimed in claim 2 is characterized in that, the shell (42) of described bulk shielding part (26) is by some wall (44,46,48) compositions of going up drawing from described sheet of metallic material (62).

4, the electrical connector of shielding as claimed in claim 1, it is characterized in that, the seamless cover part (52) of described bulk shielding part (26) comprises an inwardly outstanding lacuna (54) at least, is used for engaging with a shielding part (3) of a matched plug-in unit (2) that inserts described seamless cover part.

5, the electrical connector of shielding as claimed in claim 1 is characterized in that, described bulk shielding part (26) comprises a bonnet (70), locates to be hinged with first back edge of described shell (42) at its first edge (74).

6, the electrical connector of shielding as claimed in claim 5, it is characterized in that, described bonnet (70) comprises one second edge (76), and this edge (76) have interior lock pin (78) and outer lock pin (80), and it is used for being meshed with second back edge (83) of described shell (42).

7, a kind of electrical connector of shielding (20), it comprises:

One insulation shell (22), it comprises a part (30) that matches that aligns with the opening of panel (94);

With

One conductor screen spare (26), it centers on the housing major part and comprises

One installs leg (86), its be used for being connected with a earth connection that adapts on the circuit board (92) installed on the socket and

One panel engages the outstanding tip (88), and it extends from leg (86) is installed, and is used for shielding part is grounding to the earthing device of the adaptation of described panel (94).

8, the electrical connector of shielding as claimed in claim 7 is characterized in that, described installation leg (86) is located fixing in the part (30) that matches of contiguous housing (22).

9, the electrical connector of shielding as claimed in claim 7 is characterized in that, comprises that also a pair of described panel engages the outstanding tip (88), and it is extending from the opposite side that leg (86) is installed.

10, the electrical connector of shielding as claimed in claim 7 is characterized in that, described conductor screen spare (26) comprises a seamless cover part (52), and cover part (52) that this is seamless is round the part (30) that matches of housing (22).

11, the electrical connector of shielding as claimed in claim 10, it is characterized in that, the seamless cover part (52) of described shielding part (26) comprises an inwardly outstanding lacuna (54) at least, and it is used for engaging with the shielding (3) of the matched plug-in unit (2) that inserts the cover part.