CN1223487A

CN1223487A - Shielded electrical connector assembly with grounding system

Info

Publication number: CN1223487A
Application number: CN 98127179
Authority: CN
Inventors: S·B·波吉尔; M·M·达塔; R·德洛斯
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 1997-12-15
Filing date: 1998-12-14
Publication date: 1999-07-21

Abstract

A shielded electrical connector assembly(10) includes a dielectric housing(12) having at least one terminal-receiving passage(20). An opening (26) is provided in an outside wall of the housing(28) communicating with the passage. A terminal(18) is inserted into the passage(20), with an engaging portion (50) of the terminal aligned with the opening(26). A conductive shell(14, 16) is disposed about at least a portion of the housing. The shell includes a finger portion(44) extending through the opening in the housing(26) into engagement with the engaging portion(50) of the terminal (18).

Description

The shielded electrical connector of being furnished with earthing device

The present invention relates to electric connector, particularly relate to the grounding technology of the connector shell that has a connector earth terminal.

Usually, the electric connector of standard comprises an insulation or the non-conducting housing that many terminal-receiving passages are arranged.One group of conducting terminal is inserted in the passage. and terminal can be terminated on the electric wire of dispersion, and circuit tracing is on printed circuit board (PCB) or other suitable terminal conduit.The abutting end of the abutting end of housing and additional matching connector or other jockey cooperatively interacts.

Some electric connectors comprise a barricade or shell around connector in case the sub-interface of not-go-end is subjected to electromagnetic interference (EMT) and/or radio frequency to interfere the intrusion of (RFT) or overflow.Barricade often is to be stamped to form a book metallic plate, and connects the earthing of casing with meeting the requirements.One of method of the earthing of casing is to connect ground wire to shell.The problem of this method is to need an attended operation that separates and spend also relatively costly.The sharp method of another of the earthing of casing is placed a metallic support around connector, is meshing with each other between the grounding terminal that support stretches out at shell and connector shell rear portion.Support comprises the socket that is used for engaging connector.Support also is relatively costly and needs separately attended operation like this.In addition, earth connection must expose exposed part, and earth connection can not be guaranteed support and the good engagement of wire rack.

Very simple and very effective shielded electric connector directly solves above-mentioned problem with grounding with one in the present invention, and wherein along with shell is assembled on the housing, and connector barricade or shell are received on the earth terminal in the connector shell automatically.

Therefore, the purpose of this invention is to provide the shielded electric connector that new improved its device characteristic has been described.

In an exemplary embodiments of invention, electrical connector comprises a nonconducting housing that has a terminal-receiving passage at least.An opening is provided on the housing outer wall of intercommunication passage.A terminal is inserted in the housing, and the mate of terminal is aimed at opening.An external conductive casing is arranged at around at least one part of housing.Shell comprises that the mate that a pin pawl pin pawl extends through opening and terminal in the housing meshes.Therefore, along with shell is assembled on the housing, shell automatically is connected on the terminal.

As the announcement here, it comprises that a pair of identical casing half is substantially around connector shell the structure that shell is made up of several parts.One of casing half comprises that the pair of pin pawl is used to stride the mate that stands in terminal.Connector shell represents to have one group of terminal-receiving passage here, and the opening in one of them channel alignment housing is used to receive the earth terminal of receiving on the shell.

Terminal-receiving passage is communicated with terminal relatively opening.In inventive embodiment, the opening in the housing is fixed on the terminal relatively of passage between two parties.In another embodiment, the opening of housing is fixed on close passage one end.

Other purpose of invention, feature and advantage will at length be described in company with following accompanying drawing.

After the feature that is considered to novel invention will be placed in the accurate claim of appearance.Therefore, objects and advantages of the present invention are with reference to knowing better in the accompanying drawings that accompanying drawing will become, and components identical is used identical reference number;

Fig. 1 represents originally to contain a kind of embodiment perspective view of the shielded electric connector of inventive concept;

Fig. 2 is the perspective view that does not have upper half-shell assembled condition simplified illustration Fig. 1;

Fig. 3 is the part perspective view of part of being meshing with each other between expression pin pawl of shell and the earth terminal; And

Fig. 4 is the perspective view that expression is used to assemble the connector shell of inventive embodiments one half-shells.

Be described in further detail with reference to accompanying drawing, by Fig. 1 and Fig. 2, first embodiment of shielded electric connector, be typically expressed as 10, comprise a non-conductive housing, be expressed as 12, it comprise two halves by one and the called after that is meshing with each other on half-shells, be expressed as 14 and lower housing, be expressed as 16 shell firmly around.One group of female terminal is expressed as 18, is assembled in the housing in the shell.In the accompanying drawings, have only a terminal 18 to be expressed.

In more detail, non-conductive housing 12 comprises one group of terminal-receiving passage 20 that is used to receive terminal.In the embodiment of expression, housing has five passages to be used to receive five terminals, inserts center-aisle although only represented a terminal among the figure.Housing has a front end of engagement 22 that is used to limit the engagement interface to be used for additional be connected with a joggle an apparatus or other jockey of connector assembling.Access portal is inserted towards arrow " A " direction (Fig. 1) at the back of housing section 24 and to inner terminal.Upright fixedly floor 25 is fixed on each side of housing.Horizontal fixedly

floor

27a and 27b extend from the upper and lower surface of housing 12.At last, housing 12 comprises an opening 26 in outer wall (bottom) 28.Keep in touch in the center of opening and terminal-receiving passage 20.Therefore, discuss the purpose of ground connection here, the terminal 18 shown in Fig. 1 to Fig. 3 can be considered to an earth terminal, and it is terminated to one has on the earth connection that five electric wires are terminated to the cable on the electrical connector 10 at least.

Along with Fig. 2 with reference to Fig. 1, lower housing 14 be a sheet drawing structure and be by the conduction foil material form.Lower housing comprises that a bottom 30 and sidewall 32 are to determine that front openings cavity 34 enters the housing 12 that has been positioned.

Upright holddown groove 33 is provided in each sidewall 32 to receive the upright fin 25 of housing 12.Crosswise fixed

groove

35a and 35b are provided in the bottom 30 to be easy to receive corresponding crosswise fixed rib 27a and 27b.When parts were assembled together, groove that these are additional and rib helped housing 12 to be fixed among lower housing 14 and the last half-shells.An arch section 36 is provided for a side that comprises cable and receives electrical connector.Lateral edges 38 has fixing hole 42 (Fig. 1) that some suitable fixing holes 40 are used to aim at half-shells 16 housing is clamped in the middle of two half-shells.At last, lower housing 14 comprises that engaging pin pawl 44 that a pair of punching press forms is used for extending through the opening 26 of bottom 28 of housing 12 effectively to form firm being connected with earth terminal 18.Be used to receive the mate of terminal at the outside bifurcated of the relative interior edge of pin pawl 44 44a to determine an inside pointed cone mouth.

The metal material conductor shell that the punching press that last half-shells 16 also is a sheet forms is similar to lower housing 14.The precision architecture of one half-shells can change and suitably meshes lower housing 14 and housing 12 is clipped in the middle of two half-shells.Last half-shells has an arch section 46 to combine with the arch section 36 of lower housing 14 to clamp cable between the two in reference example, two half-shells firmly be centered around housing 12 around and and the part of terminal be meshing with each other, as being meshing with each other between the female terminal 18 of the engaging connector that adds and the convex terminal.

Fig. 2 represents clearly how non-conductive housing 12 assembles or be sealed in and has in the lower housing 14 that is fixed on the upright fin 25 in the upright groove 33.Usually terminal 18 should be inserted in the passage 20 towards " A " direction before lower housing at assembling shell 12.The arch section 36 that the electric wire 19 of cable (do not have diagram) generally should be terminated on the terminal and crested is used for by lower housing stretches out from electrical connector.Going up half-shells 16 then can be fixed on the shell with seal casinghousing 12 and termination terminal 18 in shell.

As housing 12 was mounted to lower housing 14, the pin pawl 44 of lower housing moved by the opening 26 in the bottom 28 of housing and enters engagement with earth terminal 18.Edge 44a is bored in the garden that has of pin pawl, and a firm punching press joint is based upon good connection there between lower housing bottom and the earth terminal.

Fig. 3 represents the insulation situation with respect to lower housing 14 and engaging pin pawl 44 earth terminals.Not expression of non-conductor shell 12.Two pin pawls are striden to stand in by a pair of fixed engagement that is crimped onto the terminal that the carriage 50 on the suitable wire conductor core limits that curves inwardly and can be seen on partly.The second pair of curling carriage 52 is provided at the outside of the insulating cover that is used to be crimped onto electric wire on the terminal.The front end of engagement of terminal is done concavity usually and is formed the female terminal that a female terminal is used to receive additional engaging connector.A pair of cantilever is closed door stretches out the terminal-receiving passage 20 that is used for closing housing from the opposite flank of terminal socket 58 (Fig. 1).Each terminal 18 is to form with the punching press of metal book sheet.

In the embodiment of as shown in Figures 1 to 3 electrical connector, the engaging pin pawl 44 of lower housing 14 is fixed for moving into the opening 26 in the housing bottom 28, its opening be fixed near or in the tail end of the central passage of earth terminal 18.In second embodiment of Fig. 4, the opening 26a of a bifurcated is fixed on the rear portion of the termination end of the terminal anteriomedial of engagement of housing 12 and housing 12.Steady pin pawl 44 is used for passing bifurcated opening 26a when housing when lower housing is assembled.In addition, the principle of invention similarly is applicable to two embodiment, and identical reference number has been applied among Fig. 4 corresponding to the identical parts among the Fig. 1 to Fig. 3 that describes.

Do not breaking away under the clear condition of spirit of the present invention or principal character, invention can embody other special shape, and this point is clearly.Therefore the model and the embodiment of invention are considerate intuitively with each specific everyway, and invention can not be restricted because of the detailed description here.

Claims

1. a shielded electric connector (10) comprising:

A non-conductive housing (12), it has a terminal-receiving passage (20) that has with an outer wall (28) split shed (26) of the housing of channel contact at least;

One has the terminal mate (50) of aiming at said opening (26) and is inserted in terminal (18) in the passage (20); With

A conductor casing (14,16) is centered around around at least a portion of housing (12) and comprises that a pin pawl (44) enters engagement by the mate (50) of opening (26) in the housing (12) and terminal (18).

2. according to the shielded electric connector of claim 1, it is characterized in that shell (14,16) firmly be centered around housing (12) around.

3. according to the shielded electric connector of claim 1, it is characterized in that said shell is that many parts structure comprises at least two parts (14,16) that are meshing with each other that are centered around at least a portion of said housing (12).

4. according to the said shielded electric connector of claim 3, it is characterized in that two parts of said shell comprise identical casing half.

5. according to the said shielded electric connector of claim 1, comprise that the pin pawl (44) of a pair of said shell (14,16) is striden the mate (50) that stands in terminal (18).

6. according to the said shielded electric connector of claim 5, it is characterized in that said pair of pin pawl (44) has relative tapered edges to step up mate (50) with what determine that a contraction mouth is used for determining terminal (18).

7. according to the said shielded electric connector of claim 1, it is characterized in that said terminal-receiving passage (20) has opposing ends, and the opening in the housing (26) is fixed on the rear portion of passage one end.

8. according to the said shielded electric connector of claim 1, it is characterized in that said housing (12) has an end of engagement (22) and a back link (24) forward, and the opening in the housing (26) is fixed in the middle of the two ends.

9. according to the said shielding arrangements of electric connection of claim 1, it is characterized in that comprising one group of said terminal-receiving passage (20) in housing, the said opening of a channel alignment (26) is used to receive earth terminal (18) and is used for shell (14,16) ground connection.