EP1071171A1 - Connector and header or receptacle for use in the same - Google Patents

Connector and header or receptacle for use in the same Download PDF

Info

Publication number
EP1071171A1
EP1071171A1 EP00202271A EP00202271A EP1071171A1 EP 1071171 A1 EP1071171 A1 EP 1071171A1 EP 00202271 A EP00202271 A EP 00202271A EP 00202271 A EP00202271 A EP 00202271A EP 1071171 A1 EP1071171 A1 EP 1071171A1
Authority
EP
European Patent Office
Prior art keywords
housing
spring contact
header
receptacle
contact
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.)
Granted
Application number
EP00202271A
Other languages
German (de)
French (fr)
Other versions
EP1071171B1 (en
Inventor
Niranjan Kumar Mitra
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.)
FCI SA
Original Assignee
FCIS Hertogenbosch BV
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
Application filed by FCIS Hertogenbosch BV filed Critical FCIS Hertogenbosch BV
Publication of EP1071171A1 publication Critical patent/EP1071171A1/en
Application granted granted Critical
Publication of EP1071171B1 publication Critical patent/EP1071171B1/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
    • H01R13/648—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]
    • H01R13/6598—Shield material
    • H01R13/6599—Dielectric material made conductive, e.g. plastic material coated with metal
    • 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]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members
    • 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
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted

Definitions

  • the invention pertains to a connector comprising a header and a receptacle, each comprising a housing provided with at least one contact element and with a conductive coating which, at least upon mating, forms a shield, which shield is connected or connectable to a ground contact or electrode, wherein the header and/or the receptacle comprises a spring contact attached to its conductive coating parallel to the surface of the housing, which spring contact serves, upon mating of the header and the receptacle, to establish an electrical connection between the respective conductive coatings.
  • the invention aims to provide a connector of the above mentioned type which does not exhibit the said disadvantage, or wherein the said disadvantage is at least substantially reduced.
  • the invention is characterised in that the spring contact is further attached to a protrusion or a recess respectively on or in the housing.
  • At least part of the surface of contact between the spring contact and the housing builds an angle with that part of the spring contact that runs parallel to the housing, which angle is in excess of 45 degrees.
  • At least part of the surface of contact between the spring contact and the housing runs perpendicular or substantially perpendicular to that part of the spring contact that runs parallel to the housing.
  • the surface of contact between the spring contact and the housing comprises at least two parallel or substantially parallel parts, which build an angle, preferably of about 90 degrees, with that part of the spring contact that runs parallel to the housing.
  • an angle preferably of about 90 degrees
  • Fig. 1 shows, on the left-hand side, a header 1, comprising a housing 2 which is attached to a substrate 3 and which is provided with five contact elements 4.
  • the housing 2 is made of plastic, e.g. a liquid crystalline polymer (LCP) or nylon (for example PA6), and has been provided with an electrically conductive metal coating (not shown).
  • LCP liquid crystalline polymer
  • nylon for example PA6
  • an electrically conductive metal coating (not shown).
  • Such coatings are known to the person skilled in the art, and may, for instance, comprise a copper layer with a thickness of say 1 - 2 ⁇ m on which a nickel or aluminium layer of say 2 - 3 ⁇ m has been deposited.
  • the metal coating on the housing 2 is electrically connected to a ground electrode (not shown).
  • Fig. 1 further shows a receptacle 5 which comprises a housing 6 in which five contact elements 7 are placed.
  • the housing 6 may be made of the same material as the housing 2 of the header 1 and has been provided with a similar electrically conductive metal coating.
  • a metal spring contact 8 has been attached which, upon mating of the header 1 and the receptacle 5, establishes an electrical and mechanical connection between the respective metal coatings.
  • Fig. 2 shows the spring contact 8 in more detail. It further shows a force F2, exerted on the spring contact 8 during the mating of the header 1 and the receptacle 5, and a force F1 exerted on the metal spring during and after mating.
  • the force F2 will mainly result in a shearing force at the surface of contact between the spring contact 8 and the housing 6, whereas the force F1 will result in a bending moment M and a peeling force at the said surface, which, in turn, will often result in failure of the connection between spring contact 8 and the metal coating on the housing 6.
  • Fig. 3 shows a metal spring contact 9 in accordance with the present invention.
  • This spring contact 9 is provided with a clamp or clip 10 with two parallel legs 11. Through these parallel legs 11 the spring contact 9 has been clamped on a countersunk protrusion 12 provided on the housing 6.
  • the spring contact 9 is firmly attached to the housing 6 and repeated mating an unmating of the header 1 and the receptacle 5 is made possible without endangering the integrity of the metal coating on the housing 6.
  • the spring contact 9 is preferably made of a metal, more specifically of a copper alloy such as phosphorus bronze or beryllium copper.
  • the protrusion or recess may be provided after the conductive coating has been applied to the housing, it is preferred that the protrusion or recess is provided beforehand so that the surface of the protrusion or recess is covered in its entirety by the conductive coating.
  • an amount of solder is applied so as to render the connection airtight or substantially airtight.
  • the present invention also relates to individual headers and receptacles for use in the connectors described hereinbefore.
  • the housing or the header and/or the receptacle may be an integral whole, obtained through e.g. injection moulding, but it may also be an assembly of two or more parts.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention pertains to a connector comprising a header and a receptacle, each comprising a housing provided with at least one contact element and with a conductive coating which, at least upon mating, forms a shield. The header and/or the receptacle comprises a spring contact attached to its conductive coating parallel to the surface of the housing, which spring contact serves, upon mating of the header and the receptacle, to establish an electrical connection between the respective conductive coatings. Further, the spring contact is attached to a protrusion or a recess respectively on or in the housing.

Description

  • The invention pertains to a connector comprising a header and a receptacle, each comprising a housing provided with at least one contact element and with a conductive coating which, at least upon mating, forms a shield, which shield is connected or connectable to a ground contact or electrode, wherein the header and/or the receptacle comprises a spring contact attached to its conductive coating parallel to the surface of the housing, which spring contact serves, upon mating of the header and the receptacle, to establish an electrical connection between the respective conductive coatings.
  • It is known to use a metal leaf spring attached to the outer periphery of the metallized plastic housing of the header or receptacle of a connector in such a way that this spring abuts against an adjacent metallized plastic housing of, respectively, the receptacle or the header of the connector. Thus, a good electrical and mechanical connection is established between the respective metal coatings and a shield cover is established to ensure a good signal integrity within the connector.
  • However, loading of the spring, usually resulting in a normal force of say 50 g, gives rise to, amongst others, considerable tensile forces in the connection of the spring contact to the housing. These forces will in many cases result in the metal coating being peeled off the housing.
  • The invention aims to provide a connector of the above mentioned type which does not exhibit the said disadvantage, or wherein the said disadvantage is at least substantially reduced.
  • To this end the invention is characterised in that the spring contact is further attached to a protrusion or a recess respectively on or in the housing.
  • Thus, at least part of the tensile forces is replaced by shearing forces, parallel to the interface between the metal coating and the housing, and by compressive forces, neither of which forces poses a great threat to the integrity of the connection between the spring contact and the housing.
  • In a preferred embodiment, at least part of the surface of contact between the spring contact and the housing builds an angle with that part of the spring contact that runs parallel to the housing, which angle is in excess of 45 degrees.
  • It is especially preferred that at least part of the surface of contact between the spring contact and the housing runs perpendicular or substantially perpendicular to that part of the spring contact that runs parallel to the housing.
  • Such a configuration allows both easy attachment of the spring contact to the housing and very effective absorption of the bending moments and forces applied to the spring contact. After all, the significant part of the peeling forces has now been replaced by shearing and compressive forces which can be born more easily by the conductive coating and may even contribute to a strong connection between the spring contact and the housing.
  • It is further preferred that the surface of contact between the spring contact and the housing comprises at least two parallel or substantially parallel parts, which build an angle, preferably of about 90 degrees, with that part of the spring contact that runs parallel to the housing. Thus, it becomes possible to clamp or press fit the spring contact on the housing.
  • The invention will be further explained by reference to the drawings in which an embodiment of the spring contact according to the present invention is schematically shown.
  • Fig. 1 shows a cross section of a connector comprising a spring contact in accordance with the prior art.
  • Fig. 2 shows the spring contact according to fig. 1 in more detail.
  • Fig. 3 shows a spring contact in accordance with the present invention.
  • Fig. 1 shows, on the left-hand side, a header 1, comprising a housing 2 which is attached to a substrate 3 and which is provided with five contact elements 4. The housing 2 is made of plastic, e.g. a liquid crystalline polymer (LCP) or nylon (for example PA6), and has been provided with an electrically conductive metal coating (not shown). Such coatings are known to the person skilled in the art, and may, for instance, comprise a copper layer with a thickness of say 1 - 2 µm on which a nickel or aluminium layer of say 2 - 3 µm has been deposited. The metal coating on the housing 2 is electrically connected to a ground electrode (not shown).
  • Fig. 1 further shows a receptacle 5 which comprises a housing 6 in which five contact elements 7 are placed. The housing 6 may be made of the same material as the housing 2 of the header 1 and has been provided with a similar electrically conductive metal coating. On this metal coating a metal spring contact 8 has been attached which, upon mating of the header 1 and the receptacle 5, establishes an electrical and mechanical connection between the respective metal coatings.
  • Fig. 2 shows the spring contact 8 in more detail. It further shows a force F2, exerted on the spring contact 8 during the mating of the header 1 and the receptacle 5, and a force F1 exerted on the metal spring during and after mating. The force F2 will mainly result in a shearing force at the surface of contact between the spring contact 8 and the housing 6, whereas the force F1 will result in a bending moment M and a peeling force at the said surface, which, in turn, will often result in failure of the connection between spring contact 8 and the metal coating on the housing 6.
  • Fig. 3 shows a metal spring contact 9 in accordance with the present invention. This spring contact 9 is provided with a clamp or clip 10 with two parallel legs 11. Through these parallel legs 11 the spring contact 9 has been clamped on a countersunk protrusion 12 provided on the housing 6.
  • The aforementioned force F2 will now be born primarily by the left flank 13 of the countersunk protrusion 12, whereas the force F1 and the bending moment M are distributed over the entire countersunk protrusion 12, resulting primarily in compressive forces on the right flank of the countersunk protrusion 12.
  • Owing to this construction, the spring contact 9 is firmly attached to the housing 6 and repeated mating an unmating of the header 1 and the receptacle 5 is made possible without endangering the integrity of the metal coating on the housing 6.
  • The spring contact 9 is preferably made of a metal, more specifically of a copper alloy such as phosphorus bronze or beryllium copper.
  • Although the protrusion or recess may be provided after the conductive coating has been applied to the housing, it is preferred that the protrusion or recess is provided beforehand so that the surface of the protrusion or recess is covered in its entirety by the conductive coating.
  • It is further preferred that, after the connection between the spring contact and the housing has been established, an amount of solder is applied so as to render the connection airtight or substantially airtight.
  • The present invention also relates to individual headers and receptacles for use in the connectors described hereinbefore.
  • The invention is not restricted to the above described embodiments which can be varied in a number of ways within the scope of the claims. For instance, the housing or the header and/or the receptacle may be an integral whole, obtained through e.g. injection moulding, but it may also be an assembly of two or more parts.

Claims (10)

  1. Connector comprising a header (1) and a receptacle (5), each comprising a housing (2, 6) provided with at least one contact element (4, 7) and with a conductive coating which, at least upon mating, forms a shield, wherein the header (1) and/or the receptacle (5) comprises a spring contact attached to its conductive coating parallel to the surface of the housing (2, 6), which spring contact serves, upon mating of the header (1) and the receptacle (5), to establish an electrical connection between the respective conductive coatings, characterized in that the spring contact (9) is further attached to a protrusion (12) or a recess respectively on or in the housing (6).
  2. Connector according to claim 1, wherein at least part of the surface of contact between the spring contact (9) and the housing (6) builds an angle with that part of the spring contact (9) that runs parallel to the housing (6), which angle is in excess of 45 degrees.
  3. Connector according to claim 2, wherein at least part of the surface of contact between the spring contact (9) and the housing (6) runs perpendicular or substantially perpendicular to that part of the spring contact (9) that runs parallel to the housing (6).
  4. Connector according to any one of the preceding claims, wherein the surface of contact between the spring contact (9) and the housing (6) comprises at least two parallel or substantially parallel parts (11), which build an angle with that part of the spring contact (9) that runs parallel to the housing (6).
  5. Connector according to any one of the preceding claims, wherein the surface of the protrusion (12) or recess is covered in its entirety by the conductive coating.
  6. Connector according to any one of the preceding claims, wherein the spring contact (9) is attached to a countersunk protrusion (12) on the housing (6)
  7. Connector according to any one of the preceding claims, wherein the spring contact (9) is clamped to the housing (6).
  8. Connector according to any one of the preceding claims, wherein the spring contact (9) is welded to the housing (6).
  9. Connector according to any one of the claims, wherein solder is applied to the connection between the spring contact (9) and the housing (6).
  10. Header or receptacle for use in the connector according to any one of the preceding claims, which comprises a housing (6) and wherein the spring contact (9) is attached to a protrusion (12) or a recess respectively on or in the housing (6).
EP00202271A 1999-07-23 2000-06-28 Connector and header or receptacle of the same Expired - Lifetime EP1071171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1012694A NL1012694C2 (en) 1999-07-23 1999-07-23 Connector and plug or socket for use therein.
NL1012694 1999-07-23

Publications (2)

Publication Number Publication Date
EP1071171A1 true EP1071171A1 (en) 2001-01-24
EP1071171B1 EP1071171B1 (en) 2006-06-07

Family

ID=19769635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00202271A Expired - Lifetime EP1071171B1 (en) 1999-07-23 2000-06-28 Connector and header or receptacle of the same

Country Status (4)

Country Link
EP (1) EP1071171B1 (en)
AT (1) ATE329389T1 (en)
DE (1) DE60028467T2 (en)
NL (1) NL1012694C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102738A1 (en) * 2009-03-13 2010-09-16 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Sealing of a suspended contact pin
CN104319554A (en) * 2014-08-25 2015-01-28 中航光电科技股份有限公司 Shielding grounding spring, connector employing same, and connector assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286920A (en) * 1991-11-16 1994-02-15 Robert Bosch Gmbh Electrical switching device
US5496195A (en) * 1995-03-13 1996-03-05 The Whitaker Corporation High performance shielded connector
EP0822623A1 (en) * 1996-07-31 1998-02-04 Berg Electronics Manufacturing B.V. Shield for modular jack
EP0893854A2 (en) * 1997-07-23 1999-01-27 Molex Incorporated Shielded electrical connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286920A (en) * 1991-11-16 1994-02-15 Robert Bosch Gmbh Electrical switching device
US5496195A (en) * 1995-03-13 1996-03-05 The Whitaker Corporation High performance shielded connector
EP0822623A1 (en) * 1996-07-31 1998-02-04 Berg Electronics Manufacturing B.V. Shield for modular jack
EP0893854A2 (en) * 1997-07-23 1999-01-27 Molex Incorporated Shielded electrical connector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102738A1 (en) * 2009-03-13 2010-09-16 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Sealing of a suspended contact pin
CN102349198A (en) * 2009-03-13 2012-02-08 罗森伯格高频技术有限及两合公司 Sealing of a suspended contact pin
JP2012520537A (en) * 2009-03-13 2012-09-06 ローゼンベルガー ホーフフレクベンツテクニーク ゲーエムベーハー ウント ツェーオー カーゲー Sealing spring-loaded contact pins
US8506314B2 (en) 2009-03-13 2013-08-13 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Sealing of spring-loaded contact pin
CN102349198B (en) * 2009-03-13 2013-12-18 罗森伯格高频技术有限及两合公司 Sealing of spring-loaded contact pin
CN104319554A (en) * 2014-08-25 2015-01-28 中航光电科技股份有限公司 Shielding grounding spring, connector employing same, and connector assembly
CN104319554B (en) * 2014-08-25 2017-01-25 中航光电科技股份有限公司 Shielding grounding spring, connector employing same, and connector assembly

Also Published As

Publication number Publication date
EP1071171B1 (en) 2006-06-07
NL1012694C2 (en) 2001-01-24
DE60028467D1 (en) 2006-07-20
ATE329389T1 (en) 2006-06-15
DE60028467T2 (en) 2007-01-04

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