EP3557699B1 - Connecteur à interférence électromagnétique réduite - Google Patents

Connecteur à interférence électromagnétique réduite Download PDF

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Publication number
EP3557699B1
EP3557699B1 EP18167756.8A EP18167756A EP3557699B1 EP 3557699 B1 EP3557699 B1 EP 3557699B1 EP 18167756 A EP18167756 A EP 18167756A EP 3557699 B1 EP3557699 B1 EP 3557699B1
Authority
EP
European Patent Office
Prior art keywords
housing
electrical connector
electrical
housing insert
insert
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.)
Active
Application number
EP18167756.8A
Other languages
German (de)
English (en)
Other versions
EP3557699A1 (fr
Inventor
Abiel Kidane
Mohammad NIKFALAZAR
Aruna Lawrence
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 Germany GmbH
Original Assignee
TE Connectivity Germany GmbH
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 TE Connectivity Germany GmbH filed Critical TE Connectivity Germany GmbH
Priority to EP18167756.8A priority Critical patent/EP3557699B1/fr
Publication of EP3557699A1 publication Critical patent/EP3557699A1/fr
Application granted granted Critical
Publication of EP3557699B1 publication Critical patent/EP3557699B1/fr
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Anticipated expiration legal-status Critical

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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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
    • H01R13/4223—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means comprising integral flexible contact retaining fingers
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5816—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part for cables passing through an aperture in a housing wall, the separate part being captured between cable and contour of aperture
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6272—Latching means integral with the housing comprising a single latching arm

Definitions

  • the invention relates to an electrical connector comprising a housing for receiving and fixing a housing insert, the housing insert with a wire fixture disposed inside the housing insert, a sealing member disposed at an end of the housing relative to a plug direction and at least one electrical wire received and positioned by the wire fixture and extending through the sealing member.
  • WO 2011/061074 A1 US 2011/1365350 A1 , US 2015/024629 A1 , EP 2 254 199 A1 and EP 1 253 680 A1 teach different embodiments of electrical connectors.
  • Such devices and connectors have to be initially designed and constructed such that EMI shields can be inserted inside of housings or arranged outside of housings. Hence, retrofitting existing connector designs with improved EMI performance is usually not possible.
  • the object underlying the invention can be seen as consisting in specifying an electric connecter with improved EMI performance and which can be upgraded subsequently without changing the initial design of the connector.
  • the electrical connector comprises a housing for receiving and fixing a housing insert inside an inner portion. Furthermore, the electrical connector comprises the housing insert with a wire fixture disposed inside the housing insert. A sealing member is disposed at an end of the housing of the electrical connector relative to a plug direction.
  • At least one electrical wire is received and positioned by the wire fixture and is extending through the sealing member, wherein at least one of the components of the electrical connector comprises a material with properties for dampening an electrical field strength created by the at least one electrical wire.
  • the EMI performance of the electrical connector can be improved.
  • the already existing parts of the electrical connector may be replaced by components composed of alternative materials without re-designing corresponding components.
  • the EMI may be reduced by increasing the dielectric constant and loss tangent of at least one of the components of the electric connector.
  • the dielectric constant is higher than 2.
  • the housing, the housing insert, the wire fixture and/or the sealing member may be manufactured with a modified material composition such that the dielectric properties are allowing stronger dampening effects with regard to the electric field.
  • the electrical connector can be a terminal connector or header, Ethernet connector, high voltage connector, electronics control unit connector and the like.
  • EMC electromagnetic compatibility
  • cable isolation layers and shrinkage tubes may be provided with such materials, too.
  • the sealing member is composed of a ferrite mixture for dampening the electrical field strength.
  • ferrite powder may be blended with a polymer for manufacturing an elastic sealing member for sealing the inner portion of the housing and the electrical wires against environmental influences.
  • the ferrite powder blended with polymer may be suitable for injection molding in order to enable a fast and reliable manufacturing process of the sealing member.
  • ferrite powder may be added to the materials of the housing, housing insert or to the wire fixture during their manufacturing process in order to improve corresponding EMC abilities of the said components.
  • the housing and/or the housing insert are composed of a thermoplastic or a thermoplastic compound comprising a higher permittivity and permeability than Polybutylene terephthalate material (PBT). Since the PBT is frequently used for manufacturing housings of connectors and other electrically insulating components, the EMC of such components may be improved by using materials with a higher permittivity and permeability.
  • PBT Polybutylene terephthalate material
  • dielectric losses By increasing the permittivity or permeability dielectric losses can be created inside the electrical connector.
  • the dielectric losses can be adjusted with regard to the loss angle or a loss tangent.
  • the components of the electric connector dielectric loss materials such as Barium Strontium Titanate (BST) ceramics can be utilized as addition to the materials for manufacturing.
  • BST Barium Strontium Titanate
  • the housing and/or the housing insert are composed of a conductive plastic or conductive plastic compound.
  • the components surrounding the electrical wires may act as a Faraday shield blocking electromagnetic fields.
  • the parts composed of the conductive plastic may be grounded by electrical connection with corresponding electrical wires.
  • the shielding can be applied to components with complex geometries.
  • the electrical connector may comprise an additional metal shield which may not necessarily cover the whole connector without affecting the EMI performance.
  • a ferrite core is disposed inside the housing or inside the housing insert for reducing the electrical field strength.
  • a ferrite core is disposed inside the housing or inside the housing insert for reducing the electrical field strength.
  • the ferrite core may be shaped to fit the available space.
  • a plurality of ferrite cores may be disposed inside the connector housing and/or the housing insert.
  • the ferrite core is fixed inside the housing or the housing insert by a circumferential portion of the wire fixture.
  • the ferrite core may encompass the wire fixture at least partially.
  • the wire fixture may comprise structural shaping such as recesses or grooves for receiving the ferrite core positively.
  • the ferrite core may be fixed inside the housing or the housing insert preventing impacts or damage to the ferrite core during assembly.
  • the housing comprises at least one latch disposed at an external face of the housing.
  • the electrical connector may be plugged into a corresponding terminal and fixed inside the terminal preventing unintentional disconnection.
  • the housing insert is positively attached to the housing of the electrical connector.
  • the wire fixture may be positively connected to the housing insert.
  • the housing insert comprises a length extending the housing single-sided against the plug direction of the electrical connector.
  • the haptic of the electrical connector may be improved due to increased overall length.
  • the housing insert may comprise additional space for receiving a ferrite core.
  • the sealing member is a ferrite core.
  • the elastically formed sealing member may be replaced by a static ferrite mixture.
  • the sealing member may comprise a lower thickness enabling additional space for arranging a ferrite core beside the sealing member.
  • Fig. 1 shows an electric connector 1 according to one embodiment of the invention.
  • the electrical connector 1 comprises a housing 2 with a latch 4 disposed at one external face of the housing 2 for fixing the electrical connector 1 in a plugged state inside a terminal.
  • the terminal is not shown in the figures.
  • a housing insert 6 is positively arranged inside an inner portion of the housing 2 .
  • the housing 2 and the insert 6 are forming one unit and a basic shape of the electrical connector 1.
  • the housing insert 6 is extending the housing 6 opposite to a plug direction P.
  • the sealing member 8 is composed of an elastic material and is suitable for sealing the electrical wires 10 against dust and humidity.
  • the electrical wires 10 are disposed centrally inside a joint insulation 12 and are protruding the sealing member 8.
  • the electrical connector 1 comprises a ferrite core 14 inside the housing insert 6.
  • the ferrite core 14 comprises a shape corresponding to a basic shape of an inner portion of the housing insert 6.
  • the shape of the ferrite core 14 is toroidal with four straight sections arranged in a rectangular manner.
  • Fig. 2 a sectional view through the electrical connector 1 shown in Fig. 1 is illustrated.
  • the arrangement of the ferrite core 14 inside the housing insert 6 is elucidated.
  • the wire fixture 16 is visible in the sectional view.
  • the wire fixture 16 receives the electrical wires 10 and fixes the wires 10 relative to the housing insert 6.
  • the wire fixture 16 comprises a groove 18 for inserting and positioning the ferrite core 14 inside the housing insert 6 and inside the housing 2.
  • Fig. 3 illustrates an electrical connector 1 according to a further embodiment of the invention.
  • the electrical connector 1 comprises a sealing member 8 which is accomplished as a ferrite core 14.
  • the sealing member 8 serves as a dampening material for the electrical field generated by the electrical wires 10.
  • the said sealing member 8, 14 may be provided for applications where it is not required to establish extensive sealing capabilities.
  • the ferrite core sealing member 8, 14 may act as a cover while improving EMI performance of the electrical connector 1.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (5)

  1. Connecteur électrique (1) comprenant :
    - un corps (2) recevant et fixant un insert de corps (6),
    - l'insert de corps (6) avec un dispositif de fixation de fil (16) disposé à l'intérieur de l'insert de corps (6),
    - un élément d'étanchéité (8) disposé à une extrémité du corps (2) dans une direction de branchement (P),
    - au moins un fil électrique (10) reçu et positionné par le dispositif de fixation de fil (16) et s'étendant à travers l'élément d'étanchéité (8),
    - dans lequel au moins un des composants suivants (2, 6, 8, 16) : le corps (2), l'insert de corps (6), l'élément d'étanchéité (8) et le dispositif de fixation de fil (16) du connecteur électrique (1) comprend un matériau élaboré par mélange d'un polymère avec une poudre de ferrite, ledit matériau ayant des propriétés permettant de modérer une intensité de champ électrique créée par l'au moins un fil électrique (10),
    caractérisé en ce que
    - le corps (2) et/ou l'insert de corps (6) sont constitués d'un thermoplastique ou d'un composé thermoplastique présentant une plus grande permittivité et perméabilité électromagnétique qu'un matériau à base de téréphtalate de polybutylène,
    - dans lequel un noyau de ferrite (14) est disposé à l'intérieur du corps (2) ou à l'intérieur de l'insert de corps (6) pour réduire l'intensité de champ électrique,
    - dans lequel le noyau de ferrite (14) est fixé à l'intérieur du corps (2) ou de l'insert de corps (6) par une partie circonférentielle du dispositif de fixation de fil (16).
  2. Connecteur électrique selon la revendication 1, dans lequel l'élément d'étanchéité (8) est constitué d'un mélange de ferrite destiné à modérer l'intensité de champ électrique.
  3. Connecteur électrique selon l'une quelconque des revendications 1 à 2, dans lequel le corps (2) et/ou l'insert de corps (6) sont constitués d'un plastique conducteur ou d'un composé plastique conducteur.
  4. Connecteur électrique selon l'une quelconque des revendications 1 à 3, dans lequel le corps (2) comprend au moins un verrou (4), disposé sur une face externe du corps (2).
  5. Connecteur électrique selon l'une quelconque des revendications 1 à 4, dans lequel l'insert de corps (6) comprend une longueur allongeant le corps (2) d'un seul côté à l'opposé de la direction de branchement (P) du
EP18167756.8A 2018-04-17 2018-04-17 Connecteur à interférence électromagnétique réduite Active EP3557699B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18167756.8A EP3557699B1 (fr) 2018-04-17 2018-04-17 Connecteur à interférence électromagnétique réduite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18167756.8A EP3557699B1 (fr) 2018-04-17 2018-04-17 Connecteur à interférence électromagnétique réduite

Publications (2)

Publication Number Publication Date
EP3557699A1 EP3557699A1 (fr) 2019-10-23
EP3557699B1 true EP3557699B1 (fr) 2022-03-30

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EP18167756.8A Active EP3557699B1 (fr) 2018-04-17 2018-04-17 Connecteur à interférence électromagnétique réduite

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020133318B4 (de) 2020-12-14 2022-11-10 Lear Corporation Elektrische Datenverbindungseinrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253680B1 (fr) * 2001-04-26 2011-05-04 J.S.T. Mfg. Co., Ltd. Ensemble de connection électrique comportant un verouillage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597979A (en) 1995-05-12 1997-01-28 Schlegel Corporation EMI shielding having flexible condustive sheet and I/O Gasket
WO2009082751A2 (fr) * 2007-12-24 2009-07-02 Torrent, Inc. Connecteurs magnétiques à blocage pour câbles
EP2254199B1 (fr) * 2009-03-02 2011-10-19 Tyco Electronics UK Ltd. Terminaison de tresse de blindage pour connecteur électrique blindé
FR2953071B1 (fr) * 2009-11-23 2012-04-20 Tyco Electronics France Sas Boitier de connecteur electrique
US9099814B2 (en) * 2013-07-16 2015-08-04 Delphi Technologies, Inc. Shielded electrical header assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253680B1 (fr) * 2001-04-26 2011-05-04 J.S.T. Mfg. Co., Ltd. Ensemble de connection électrique comportant un verouillage

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