EP0231539B1 - Shielded and keyed electrical connector assembly - Google Patents

Shielded and keyed electrical connector assembly Download PDF

Info

Publication number
EP0231539B1
EP0231539B1 EP86202144A EP86202144A EP0231539B1 EP 0231539 B1 EP0231539 B1 EP 0231539B1 EP 86202144 A EP86202144 A EP 86202144A EP 86202144 A EP86202144 A EP 86202144A EP 0231539 B1 EP0231539 B1 EP 0231539B1
Authority
EP
European Patent Office
Prior art keywords
plug
receptacle
series
shield
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86202144A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0231539A1 (en
Inventor
Wayne Samuel Davis
Daniel Brian Lazarchik
Robert Charles Swengel, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/420,762 external-priority patent/US4457575A/en
Priority claimed from US06/423,486 external-priority patent/US4781626A/en
Application filed by AMP Inc filed Critical AMP Inc
Publication of EP0231539A1 publication Critical patent/EP0231539A1/en
Application granted granted Critical
Publication of EP0231539B1 publication Critical patent/EP0231539B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6596—Specific features or arrangements of connection of shield to conductive members the conductive member being a metal grounding panel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/16—Connectors or connections adapted for particular applications for telephony
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices

Definitions

  • This invention relates to keying systems for electrical connector assemblies of the type comprising a receptacle having a plug receiving opening therein and a plug which is received in the opening.
  • the embodiment of the invention described below shows the keying system as provided on connector assemblies of the general types shown in US Patents 4 193 654, 4 210 376 and 4 331 458.
  • the principles of the invention can, however, be used to advantage with other types of connectors.
  • US Patents 4 193 654, 4 210 376 and 4 221 458 show a known type of electrical connector assembly which is coming into widespread use in the communications industry and on computer and computer related equipment.
  • the receptacles shown in the above-identified US patents are dimensioned to receive connector plugs of the general type shown in US patent 3 860 316.
  • the receptacles and plugs referred to above usually have no more than eight terminals therein and it is usually not considered necessary to provide keying systems to key a particular plug to a particular receptacle.
  • connector assemblies of the general type described above having greatly increased numbers of contact terminals therein and there is a need for a family or series of connectors having varying numbers of terminals therein. These requirements are particularly felt by manufacturers of computers and computer-related equipment.
  • connector assemblies of the type under consideration are manufactured in a range of sizes, as regards the number of terminals in the assembly, it is possible to insert a plug part of the assembly having a lesser number of contact terminals into a receptacle having a greater number of contact terminals because of the fact that the plug and receptacle of two assemblies of different sizes differ only in the width of the plug and the width of the plug-receiving opening in the receptacle.
  • the invention is directed to the achievement of a primary keying system for a series or family of electrical connector assemblies, the primary keying system functioning to prevent insertion of a relatively smaller plug into a larger receptacle than the size of the receptacle for which the plug is intended.
  • a conventional keying system is also required for connector assemblies of the type under consideration. If two connector assemblies of the same size (having the same number of terminals therein) are used in close proximity, it is possible to mismate the plugs and receptacles and the primary keying system discussed above would not preclude such mismating.
  • a secondary keying system is thus needed specifically to keying a specific plug to a specific receptacle.
  • the invention in accordance with a further aspect is directed to the achievement of an improved specific keying system and particularly to a specific keying system in combination with a primary keying system.
  • each assembly comprising a plug and a receptacle, each plug and each receptacle comprising a molded insulating housing having a mating end and a rearward end and having oppositely facing external housing sidewalls and oppositely facing external housing endwalls extending from the mating end to the rearward end, each of the receptacles having a trough-like plug-receiving opening extending into its mating end, the plug-receiving opening in each receptacle having opposed sidewalls which are proximate to the external housing sidewalls and opposed endwalls which are proximate to the external housing endwalls, the plug of each connector assembly having a forward portion which extends from its mating end partially towards its rearward end and which is dimensioned to be received in the plug-receiving opening of the receptacle of the same assembly, a plurality of
  • Coded keying of connectors is known, for example from DE-A-2 513 640 and DE-U-2 149 083.
  • DE-C-616 550 discloses a series of connector assemblies comprising plugs and plug receptacles. At least one protrusion or key is provided on each receptacle and at least one groove or keyway on each plug, the key in the receptacle being located within its plug receiving opening.
  • the present invention consists in a series of electrical connector assemblies as defined in claim 1.
  • Figures 1-3 show an eight position connector assembly 2 comprising a plug 4 and a receptacle 6.
  • the assembly 2 incorporates a primary keying system and a secondary keying system.
  • the structure of the assembly will first be described in detail. The relationship and significance of a keying system to a family or series of connectors will then be described with reference to Figures 4-15.
  • the plug 4 is generally in accordance with the teachings of US Patent 3 860 316 and comprises an insulating housing having mating end 8, a rearward end 10, upper and lower housing sidewalls 12,14 and oppositely facing housing endwalls 16.
  • Latch arms 18 extend from the housing endwalls and have rearwardly facing shoulders 19 which engage shoulders 61 in the receptacle when the plug is mated with the receptacle.
  • a cable receiving opening 20 extends into the rearward end 10 and a cable 22 is inserted into this opening.
  • the individual conductors 24 of the cable extend into a reduced cross section forward portion of the opening, the cable being retained by an integral strain relief clamp 26 and the conductors being retained by conductor strain relief means 28 as generally described in US Patent 3 860 316.
  • the plug contact terminals 30 comprise flat stamped contact members and are received in recesses 32 which extend inwardly from the mating end 8 and inwardly from the lower sidewall 14.
  • the contact terminals have insulation piercing portions which extend through openings and into the individual conductors 24.
  • the plug contacts are engaged with the spring contact portions 72 of the receptacle contacts 62 when the plug is coupled to the receptacle.
  • the receptacle 6 is generally of the type shown in US Patent 4 221 458 and comprises a one piece molded insulating housing having a mating end 34, a rearward end 36, upper and lower external housing sidewalls 38,40, respectively, and oppositely facing external housing endwalls 42.
  • a flange 44 is provided on the mating end 34 and overlaps an opening in a panel 46.
  • the receptacle is mounted on a circuit board 48 and may have integral interference-fit mounting projections 50 extending from its lower sidewall 40.
  • a plug-receiving opening 52 extends inwardly from the mating end 34 and receives the forward portion 54 of the plug 4.
  • the forward portion extends from the mating end 8 of the plug for a substantial distance towards the rearward end and portions of the latch arms 18 are received in the opening 52 so that the shoulders 19 of the latches will engage the shoulders 61.
  • Plug-receiving opening 52 has upper and lower sidewalls 56,58 and opposed plug-opening endwalls 60.
  • the receptacle contacts 62 comprise flat stamped sheet metal members arranged in side-by-side relationship in a row which extends between the endwalls 60.
  • Each contact 62 has a post portion 64 which extends beyond the housing sidewall 40, through an opening in the circuit board, and is soldered to a conductor on the underside of the circuit board.
  • Each contact also has an intermediate portion 66 which is received in a recess 68 extending inwardly from the lower sidewall 40 and a contact spring portion 72 which extends obliquely into the plug-receiving opening.
  • the contact is bent as shown at 70 and is recessed from the mating end 34.
  • the free end of the contact portion 72 extend into a recess formed by spaced-apart barrier walls 73 at the inner end of the opening 52. These barrier walls prevent adjacent contacts from engaging each other. Barriers are also provided as shown at 74 between the bent portions 70 of adjacent contacts.
  • the central lower portion 76 of the receptacle is open at the mating end to permit assembly of the contacts 62 to the housing and bending of the contact portions 72 as explained in US Patent 4 221 458.
  • the primary keying system comprising primary keys 78 which are molded integrally with the upper sidewall 56 of the plug-opening 52.
  • Each key has an inner end 80 which is adjacent to the rearward end 36 of the housing and has a forward or outer end 82 which is located inwardly from the mating end 34 of the receptacle housing.
  • two primary keys are provided in the receptacle, these keys being on each side of the center line and closely adjacent to the center line.
  • the corresponding primary keyways 84 in the plug 4 are dimensioned to receive the primary keys and are located on each side of, and adjacent to, the center line as required.
  • secondary keys 86 are provided on the upper sidewall 56 of the plug opening 52 and are coextensive with the primary keys 78.
  • the secondary keys 86 are of a generally square cross section and have a width in the disclosed embodiment which is about one-half of that of the primary keys.
  • the secondary keyways 88 in the plug are coextensive with the primary keyways 84 and are of reduced width as compared with the primary keyways.
  • Figures 4-15 are diagrammatic representations of the mating ends of a series of connector parts having increasing numbers of contacts.
  • the enclosed areas 93 thus represent either the mating end 8 of the plug 4 or the mating end 34 of the receptacle 6.
  • Figures 4-15 are based on a series of connector assemblies having four contacts in the smallest member of the series ( Figure 4) and having twenty-six contacts in the largest connector assembly of the series ( Figure 15).
  • the intervening connector assemblies of Figures 5-14 each has two more contacts than the previous connector assembly.
  • Figure 5 represents a connector assembly having six contacts
  • Figure 6 represents a connector assembly having eight contacts and so on.
  • the darkened rectangles 89 in Figures 4-15 represent the locations of the primary keys 78 in the receptacles or the primary keyways 84 in the plugs.
  • the smaller undarkened squares 90 represent the possible sites for secondary keys 86 or secondary keyways 88. It is possible to provide two secondary key sites on the lower sidewall 58 of the receptacle and corresponding keyways on the lower housing sidewall 14 of the plug as shown at 92.
  • Figures 4-15 Careful study of Figures 4-15 will establish the fact that it would be impossible to insert a plug 4 having a lesser number of contacts into a receptacle 6 having a number of contacts therein which is greater than the lesser number by virtue of the locations of the primary keys in the larger receptacle and the absence of keyways in smaller plug. This fact can be demonstrated by superimposing any one of Figures 4-14 on any other one of the figures which has an identifying number greater than that of the first figure.
  • Figure 4 of the disclosed embodiment the four position connector assembly does not require a primary key and keyway.
  • a secondary key is provided in one of the secondary key and keyway sites 90,92 in the receptacle and a corresponding keyway is provided in the plug.
  • the secondary key and keyway sites 90,92 have a width which is only about one-half that of the width of the primary keys and keyways. It follows that there is no possibility that a secondary keyway will receive a primary key of a receptacle for which the plug is not intended, in other words, a receptacle having a greater number of contacts therein than the plug.
  • the relatively large number of potential sites for secondary keys and keyways provides the capability of a large number of unique combinations of secondary keys and keyways and therefore a correspondingly large number of unique keying arrangements for connector assemblies within the series or family.
  • the number of secondary key and keyways sites 90,92 has been limited to ten such sites.
  • additional secondary key and keyway sites could be provided as desired with a resulting increase in the number of unique or specific keying combinations.
  • the primary and secondary keying systems of the invention can be provided in a series of family of connector assemblies with relative ease in the manufacturing process.
  • the plug and receptacle shown in Figure 1 are such that they can be molded with a "straight action mold", that is, a mold in which all of the core pins extend parallel to the direction of movement of the mold halves towards and away from each other when the mold is open and closed.
  • a straight action mold is relatively simple as compared with a "side draw” mold in which core pins extend normally of the direction of movement of the mold parts.
  • the primary and secondary keys and keyways in the plug and receptacle are formed by core pins which extend in the direction of movement of the mold parts. In the embodiment shown, these core pins are of similar rectangular cross section. It follows that core pins can be placed in the mold parts or removed from the mold parts with relative ease to form the desired secondary keys and keyways. The core pins which form the primary keys and keyways would ordinarily remain permanently in the mold parts.
  • Figures 16 and 17 show an alternative embodiment in which a primary key and one or two adjacent secondary keys are replaced by composite keys as shown at 94 and 96 in Figure 16.
  • the composite key 94 thus comprises a primary key, a secondary key, and molded material which fills the gap between the two keys.
  • the composite key 96 comprises a primary key and two secondary keys in addition to the material between the primary key and the secondary keys.
  • the composite keyways 99,101 for the composite keys 94,96 are sufficiently wide to accept the composite keys as shown in Figure 17.
  • the connector 4 also has modified latch arms 103 and is provided with a shield 98 as described below.
  • Figures 18, 19 and 20 show features of a shielded connector assembly in accordance with the invention.
  • the cable 22' has metallic shielding 102 in surrounding relationship to the conductors 24 and an insulating sheath 104 surrounds the shielding material 102.
  • the plug 4 and receptacle 6 of Figures 18 and 19 are substantially similar to the previously described plug and receptacle and are identified with the same reference numerals.
  • the plug shield 98 is of sheet metal and has an upper sidewall 106, a lower sidewall 108, and oppositely facing endwalls 110 which are against the corresponding sidewalls and endwalls of the plug housing.
  • the forward end 112 of the shield 98 is recessed from the mating end 8 of the housing so that a forward portion 54 of the housing is not covered by the shield.
  • the rearward end 114 of the shield has an inwardly turned flange 116 which is maintained in contact with the shielding material 102 by the locking member 26.
  • Tongues 118 are provided on the lower sidewall 108 and can be bent into recesses in the plug housing to retain the shield on the housing.
  • the shield is also retained by a boss 120 on the upper sidewall 12 of the plug housing which is received in an opening 121 of the shield.
  • the receptacle shield 100 has a face portion 122 which is disposed against the mating end of the receptacle housing and has a flange 124 which extends over the flange 44 of the receptacle housing. Clinching ears 126 extend from this flange as shown in Figure 20 to retain the receptacle shield 100 on the receptacle housing.
  • a tongue 128 extends from the flange 124 partially across the lower housing sidewall and may be electrically connected to a ground conductor on the circuit board if desired.
  • Contact arms 130 extend from the plug-receiving opening of the shield 100 and are engaged by the receptacle shield when the parts are mated with each other as shown in Figure 20.
  • the shielding material 102 is in electrical contact with the plug shield 98 and the forward portion of the plug shield is received in the plug-receiving opening of the receptacle so that the plug shield overlaps the receptacle shield. There is thus no possibility of radiation from the conductors and contacts.
  • the shielding members 98,100 of Figures 18-20 are entirely compatible with the primary and secondary keying systems previously described.
  • the primary and secondary keys in the receptacle are recessed inwardly from the mating end of the receptacle so that these keys do not interfere with the shielding of the receptacle.
  • the plug shield does not cover the forward portion of the plug housing and the keyways 84,88 will cooperate with the keys to achieve the keying effects described above.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP86202144A 1982-09-21 1983-09-06 Shielded and keyed electrical connector assembly Expired - Lifetime EP0231539B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US420762 1982-09-21
US06/420,762 US4457575A (en) 1982-09-21 1982-09-21 Electrical connector having improved shielding and keying systems
US423486 1982-09-24
US06/423,486 US4781626A (en) 1982-09-24 1982-09-24 Keying system for connector families

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP83305151.9 Division 1983-09-06

Publications (2)

Publication Number Publication Date
EP0231539A1 EP0231539A1 (en) 1987-08-12
EP0231539B1 true EP0231539B1 (en) 1992-07-01

Family

ID=27024982

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86202144A Expired - Lifetime EP0231539B1 (en) 1982-09-21 1983-09-06 Shielded and keyed electrical connector assembly
EP83305151A Ceased EP0108477A1 (en) 1982-09-21 1983-09-06 Keying system for connector families

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP83305151A Ceased EP0108477A1 (en) 1982-09-21 1983-09-06 Keying system for connector families

Country Status (6)

Country Link
EP (2) EP0231539B1 (es)
BR (1) BR8305092A (es)
CA (1) CA1204480A (es)
DE (1) DE3382586T2 (es)
ES (1) ES282314Y (es)
MX (1) MX155535A (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653837A (en) * 1984-05-21 1987-03-31 Stewart Stamping Corp. Jack and connector
GB2163305B (en) * 1984-08-17 1988-11-02 Teradyne Inc Backplane connector
US4577920A (en) * 1984-10-15 1986-03-25 Amp Incorporated Electrical assembly with cable guiding member
US4623211A (en) * 1985-06-24 1986-11-18 Molex Incorporated Shielded connector assembly
US4825765A (en) * 1986-09-25 1989-05-02 Nippon Oil And Fats Co., Ltd. Delay circuit for electric blasting, detonating primer having delay circuit and system for electrically blasting detonating primers
GB2227131A (en) * 1989-01-10 1990-07-18 Itt Ind Ltd Shielded electrical connectors
GB2230151A (en) * 1989-03-17 1990-10-10 Plessey Telecomm Electromagnetic shielding of cable termination
DE4114921A1 (de) * 1991-05-07 1992-11-12 Ahlborn Mess Und Regelungstech Elektrische steckverbindung
DE4238224C2 (de) * 1992-11-12 1996-02-29 Gaertner Karl Telegaertner Vorrichtung zum Anschließen elektronischer Einrichtungen
DE9304405U1 (de) * 1993-03-23 1993-09-02 Albert Ackermann Gmbh & Co Kg, 51643 Gummersbach Kodierbarer Steckverbinder
DE9304339U1 (de) * 1993-03-23 1993-08-19 Albert Ackermann Gmbh & Co Kg, 51643 Gummersbach Kodierbarer Steckverbinder
NL9401073A (nl) * 1994-06-28 1996-02-01 Framatome Connectors Belgium Connectorsamenstel.
DE20011382U1 (de) * 2000-06-29 2001-11-08 Siemens Building Technologies AG, Zürich Verbindungsmodul
JP2002359033A (ja) * 2001-05-31 2002-12-13 Yazaki Corp コネクタの嵌合構造
US7402086B2 (en) * 2006-02-17 2008-07-22 Sanbisk Il Ltd USB connecting system and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE616550C (de) * 1933-02-08 1935-07-31 Siemens Schuckertwerke Akt Ges System von mehrpoligen Flachstiftsteckvorrichtungen

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US3873172A (en) * 1971-12-17 1975-03-25 Amp Inc Flat multi-conductor cable holder
DE7149083U (de) * 1971-12-28 1973-06-28 Siemens Ag Mehrpolige elektrische Steckverbindung
DE7430223U (de) * 1974-09-07 1975-06-12 Blaupunkt Werke Gmbh Verpolungssichere, mehrpolige Steckverbindung für abgeschirmte Leitungen
DE2513640B2 (de) * 1975-03-27 1981-01-22 Blaupunkt-Werke Gmbh, 3200 Hildesheim Mehrpolige codierte Steckverbindung
DE2613907C3 (de) * 1976-03-31 1980-06-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zum Schirmen einer Steckverbindung
JPS5828717B2 (ja) * 1979-08-31 1983-06-17 富士通株式会社 極性付コネクタ
US4337989A (en) * 1980-05-28 1982-07-06 Amp Incorporated Electromagnetic shielded connector
US4386814A (en) * 1981-08-17 1983-06-07 Amp Incorporated Kit for converting a panel opening to a shielded pin receptacle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE616550C (de) * 1933-02-08 1935-07-31 Siemens Schuckertwerke Akt Ges System von mehrpoligen Flachstiftsteckvorrichtungen

Also Published As

Publication number Publication date
ES282314Y (es) 1986-07-16
EP0108477A1 (en) 1984-05-16
CA1204480A (en) 1986-05-13
ES282314U (es) 1985-12-16
BR8305092A (pt) 1984-05-08
DE3382586T2 (de) 1993-02-18
MX155535A (es) 1988-03-24
DE3382586D1 (de) 1992-08-06
EP0231539A1 (en) 1987-08-12

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