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WO1996008856A1 - Boitier de connexion de cables a protection antiparasites - Google Patents

Boitier de connexion de cables a protection antiparasites Download PDF

Info

Publication number
WO1996008856A1
WO1996008856A1 PCT/FI1995/000500 FI9500500W WO9608856A1 WO 1996008856 A1 WO1996008856 A1 WO 1996008856A1 FI 9500500 W FI9500500 W FI 9500500W WO 9608856 A1 WO9608856 A1 WO 9608856A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
shield
connector
outer casing
connector 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.)
Ceased
Application number
PCT/FI1995/000500
Other languages
English (en)
Inventor
Reijo Nurmi
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to AU33890/95A priority Critical patent/AU3389095A/en
Publication of WO1996008856A1 publication Critical patent/WO1996008856A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive 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
    • H01R13/648—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
    • 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
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • 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
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods

Definitions

  • the invention relates to an interference- protected cable connector housing, which comprises a metal shield structure and a surrounding outer casing, and during the use of which the sheath of the cable is grounded to a frame structure of a device, a circuit board or the like to protect especially against electromagnetic interference (EMI).
  • EMI electromagnetic interference
  • the problem with cable connector housings is how to ground the sheath of the cable to the frame structure of the apparatus so well that it provides sufficient interference protection. This problem is common in connectors manufactured from electrically non- conductive materials (for example a EURO connector).
  • the connector housing can also be manufactured entirely from metal, for example aluminium cast. Such housings can be found from manufacturers' lists for D connectors. In such connectors the aluminium housing comes into contact with the connector frame from where it is carried off to the earth from the attachment points of the connector of the circuit board. This manner is not applicable for electrically non-conducting connectors. Furthermore, also here the space between the attachment points can be too long to provide sufficient protection.
  • Plastic connector housings are also known, the surface of these housings being nickel plated so that an electrically conductive coating can be provided on the surface of the housing.
  • the connector frame is then connected to the earth from one point. The capacity of this housing to inhibit interference is poor.
  • Such plastic connector housings have also been used where an earth conductor encircling the sheath of the cable is directed from the sheath to an available pin of the connector, from where the conductor is supplied further to the circuit board or to the frame structure of the device. This does not provide adequate protection, since one conductor cannot equalize the potential differences of the sheath or prevent the interference radiation of the other conductors to the environment.
  • the object of the present invention is to eliminate the problem using as a starting point the cable connector housing described in the beginning.
  • This aim is achieved with the cable connector housing according to the invention, characterized in that the shield structure consists of a solid flexible shield,
  • the invention is based on a two-part housing wherein the outer casing (for example plastic) of the housing acts as a supporting structure and the inner part (thin sheet metal) as the actual EMI shield.
  • the essential idea of the structure is that it provides a good and, in view of the RF signals, close contact between the cable sheath and the frame of the device.
  • the tongues of the shield have spring-like properties ensuring the contact to the frame of the device within a wide area.
  • the shield of the cable is connected via the shortest path to the frame of the device and it ensures reliable protection around the entire connector.
  • the protection-attenuation ability of the cable can thus be utilized to the maximum, since it is at least as effective as that of the cable sheath.
  • the possibilities of designing the flexible tongues of the shield are unlimited, and there may be several optional materials and thicknesses for the shield.
  • the structure of the housing is simple (only two parts and it is inexpensive to manufacture. Furthermore, it is possible to take the shield out of use, if desired, if the connector is used in places where no EMI protection is needed.
  • Figure 1 is a perspective view of the cable connector housing according to the invention and of a counter connector provided in the frame of the device, in partial profile,
  • Figure 2 shows the parts of the cable connector housing shown in Figure 1 before the assembly,
  • Figure 3 is a cross-section of the cable connector housing according to the previous figures, and the counter connector of the device, and Figures 4A, 4B and 4C show a preferred manner of locking the outer casing of the cable connector housing according to the invention to the counter connector of the device.
  • the cable connector housing according to the invention shown in the drawings consists of two parts, i.e. an electrically conductive metal shield 1 and a preferably plastic outer casing 2 encircling the shield 1.
  • the shield 1 is formed of a solid thin sheet metal having spring-like properties and a thickness of for example 0.1 mm. According to Figure 2, the sheet metal is bent and compressed into the position of application shown in Figures 1 and 3, into an elongated object having a substantially U-shaped cross-section. Actually, the shield 1 is substantially U-shaped only when it is inserted into the outer casing 2 having a corresponding shape, since when the shield 1 is detached from the outer casing 2, its branches 4 and 5 are further away from each other than when the shield is positioned in place.
  • edges of the branches 4 and 5 of the shield 1 that are positioned against the device 3 are bent into several tongues 7 that protrude to the side (inwards or outwards) from the branches 4 and 5, that are separated from one another by means of cuts 6, and that come into close contact with the frame structure 8 of the device 3, the earth foil of the circuit board 9, or with some other corresponding surface providing grounding, when the connector 10 placed in the shield 1 is attached to the counter connector 11 provided in the device 3.
  • the bottom area 13 inside the U formed by the shield 1 comes into close contact with the stripped sheath 14 of the cable 12, and correspondingly the connector 10 to which the wires 15 of the cable 12 are connected will be substantially encircled by the shield 1 so that the connection will be grounded and protected as well as possible against electromagnetic interference.
  • the cable 12 is attached to the housing in such a way that both the shield 1 and the outer casing comprise within this area openings 16 and 17 via which the cable 12 can be clamped against the bottom area 13 of the U for example by means of cable ties 18.
  • the connector 10 leans in the shield 1 on the end walls formed of the end projections 19 of the branches 4 and 5 of the shield 1, the end walls preventing the connector 10 from moving towards the bottom of the U, acting as additional interference shield.
  • the connector 10 is again locked in place so that it cannot come off the housing.
  • the connector 10 and the outer casing 2 are locked for example by means of a snap connection or other corresponding form locking.
  • Figures 4A to 4C show a preferred manner of implementing the aforementioned interlocking of the outer casing 2 and the connector 10. It comprises a one- part elongated outer casing having a substantially U- shaped cross-section and containing two branches 20 and 21, which can be stretched away from each other and the ends of which are provided with gripping jaws 22 for gripping the ends of the connector.
  • the structure is such that it keeps the connector 10 in place even if it were not supported against the aforementioned end walls of the shield 1. This also enables the use of the outer casing 2 without the shield 1, if desired.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un boîtier de connexion de câbles protégé contre les parasites et comprenant une structure de blindage en métal (1) et une enveloppe extérieure (2). En fonctionnement, la gaine (14) du câble (12) est reliée, afin d'effectuer une mise à la terre, à une structure de bâti (8) d'un dispositif (3) ou à une plaquette de circuit (9), par exemple, afin de le protéger contre les parasites électromagnétiques. La structure de blindage est constituée d'un blindage souple et uniforme (1) entourant le connecteur (10) et au niveau de la surface intérieure (13) duquel la gaine (14) du câble (12) est mise directement à la terre, les bords du blindage situés contre le dispositif (3) constituant des languettes (7) placées en contact direct avec la structure de bâti dudit dispositif ou avec la plaquette de circuit, par exemple, quand le connecteur (10) est fixé en position et quand le blindage est fixé amovible à la fois au connecteur (10) et à l'intérieur de l'enveloppe extérieure (2).
PCT/FI1995/000500 1994-09-16 1995-09-14 Boitier de connexion de cables a protection antiparasites Ceased WO1996008856A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33890/95A AU3389095A (en) 1994-09-16 1995-09-14 Interference-protected cable connector housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI944324 1994-09-16
FI944324A FI96458C (fi) 1994-09-16 1994-09-16 Häiriösuojattu kaapeliliitinkotelo

Publications (1)

Publication Number Publication Date
WO1996008856A1 true WO1996008856A1 (fr) 1996-03-21

Family

ID=8541391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000500 Ceased WO1996008856A1 (fr) 1994-09-16 1995-09-14 Boitier de connexion de cables a protection antiparasites

Country Status (3)

Country Link
AU (1) AU3389095A (fr)
FI (1) FI96458C (fr)
WO (1) WO1996008856A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001089043A1 (fr) * 2000-05-12 2001-11-22 3M Innovative Properties Company Connecteur de cable blinde equipe d'un systeme de verrouillage
US6786742B2 (en) 2001-04-12 2004-09-07 3M Innovative Properties Company Shield cable connector with latch lock system
US20180005726A1 (en) * 2015-02-12 2018-01-04 Autonetworks Technologies, Ltd. Sheathed wire harness

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077522A (en) * 1980-06-06 1981-12-16 Krone Gmbh Connector assembly for pcm cables
EP0093992A1 (fr) * 1982-05-03 1983-11-16 Quintec Interconnect Systems Connecteur blindé et méthode pour son assemblage
EP0261474A2 (fr) * 1986-09-25 1988-03-30 Siemens Aktiengesellschaft Fiche pour câble
DE3713639A1 (de) * 1987-04-23 1988-11-03 Gore W L & Co Gmbh Verbinderabschirmung fuer elektrische verbinder
US5112251A (en) * 1989-06-15 1992-05-12 Bull S.A. Electrical connector for connecting a shielded multiconductor cable to an electrical assembly located inside a chassis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077522A (en) * 1980-06-06 1981-12-16 Krone Gmbh Connector assembly for pcm cables
EP0093992A1 (fr) * 1982-05-03 1983-11-16 Quintec Interconnect Systems Connecteur blindé et méthode pour son assemblage
EP0261474A2 (fr) * 1986-09-25 1988-03-30 Siemens Aktiengesellschaft Fiche pour câble
DE3713639A1 (de) * 1987-04-23 1988-11-03 Gore W L & Co Gmbh Verbinderabschirmung fuer elektrische verbinder
US5112251A (en) * 1989-06-15 1992-05-12 Bull S.A. Electrical connector for connecting a shielded multiconductor cable to an electrical assembly located inside a chassis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001089043A1 (fr) * 2000-05-12 2001-11-22 3M Innovative Properties Company Connecteur de cable blinde equipe d'un systeme de verrouillage
US6786742B2 (en) 2001-04-12 2004-09-07 3M Innovative Properties Company Shield cable connector with latch lock system
US20180005726A1 (en) * 2015-02-12 2018-01-04 Autonetworks Technologies, Ltd. Sheathed wire harness
CN107851981A (zh) * 2015-02-12 2018-03-27 株式会社自动网络技术研究所 外装线束
US9984790B2 (en) * 2015-02-12 2018-05-29 Autonetworks Technologies, Ltd. Sheathed wire harness

Also Published As

Publication number Publication date
FI96458B (fi) 1996-03-15
FI96458C (fi) 1996-06-25
AU3389095A (en) 1996-03-29
FI944324A0 (fi) 1994-09-16

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