EP0510264B1 - Système de connexion pour des câbles coaxiales - Google Patents

Système de connexion pour des câbles coaxiales Download PDF

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Publication number
EP0510264B1
EP0510264B1 EP19910303559 EP91303559A EP0510264B1 EP 0510264 B1 EP0510264 B1 EP 0510264B1 EP 19910303559 EP19910303559 EP 19910303559 EP 91303559 A EP91303559 A EP 91303559A EP 0510264 B1 EP0510264 B1 EP 0510264B1
Authority
EP
European Patent Office
Prior art keywords
connector assembly
plug
shield
dielectric
terminal
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
EP19910303559
Other languages
German (de)
English (en)
Other versions
EP0510264A1 (fr
Inventor
Dominique Bertho
Matthew Wilhite
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.)
Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Priority to EP19910303559 priority Critical patent/EP0510264B1/fr
Priority to ES91303559T priority patent/ES2097792T3/es
Priority to DE1991624689 priority patent/DE69124689T2/de
Publication of EP0510264A1 publication Critical patent/EP0510264A1/fr
Application granted granted Critical
Publication of EP0510264B1 publication Critical patent/EP0510264B1/fr
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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • This invention generally relates to the art of electrical connectors and, particularly, to a connector system for terminating and grounding a coaxial cable.
  • Modern electronic systems often require large numbers of coaxial cables for high speed signal transmission purposes, such as in systems incorporating computer equipment and associated peripheral equipment.
  • Such systems involve not only interconnections of integrated circuits to printed circuit boards but also printed circuit boards to other printed circuit boards.
  • a popular form of connection is called a post and socket connection utilizing a two-piece connector.
  • Coaxial cables are used widely in such systems because they are advantageous in their ability to provide shielding functions to prevent escape of electromagnetic energy and/or undesirable input of electromagnetic energy with respect to signal conductors. They also have impedance characteristics that improve accuracy and efficiency, such as the speed of signal transmission and the transmitted signal quality.
  • a conventional coaxial cable typically includes a signal conductor or core surrounded by an insulating sheath, with shield or ground means between the insulating sheath and an outer insulating jacket.
  • the shielding means may be a conductive braid or foil, for example.
  • GB-A-2,104,312 discloses a coaxial connector assembly according to the preamble of claim 1.
  • the present invention is characterized by the features of the characterizing portion of claim 1.
  • An object, therefore, of the invention is to provide a new and improved connector system for terminating and grounding a coaxial cable which has a conductor core and a conductor shield means about the core, with appropriate insulation therebetween and thereabout.
  • the connector system includes a first connector assembly including a dielectric housing defining a receptacle.
  • a signal terminal is mounted on the housing and exposed in the receptacle.
  • a ground terminal is mounted on the housing and is also exposed in the receptacle.
  • a second connector assembly includes a dielectric plug configured for insertion into the receptacle of the first connector assembly.
  • a signal terminal is mounted on the plug for termination to the conductor core of the coaxial cable and for mating with the signal terminal on the first connector assembly.
  • a shield of the second connector assembly is disposed about a substantial area of the plug, coupled to the shield means of the coaxial cable, and includes a contact portion on the outside of the plug for engaging the ground terminal on the first connector assembly.
  • the dielectric housing of the first connector assembly includes an outer wall, with the ground terminal disposed inside the wall. Therefore, the area of engagement between the ground terminal and the contact portion of the shield of the second connector assembly is protected by the outer wall of the housing of the first connector assembly.
  • Both the dielectric housing of the first connector assembly and the dielectric plug of the second connector assembly are unitarily molded components.
  • Complementary interengaging guide means are molded integrally with the housing and the plug to guide the plug into the receptacle of the housing.
  • Complementary interengaging latch means also are molded integrally with the housing and the plug to secure the connector assemblies in a mating condition.
  • the shield about the plug of the second connector assembly includes a shielding portion spaced from its contact portion.
  • the plug has a signal-terminal-receiving cavity disposed between the shielding portion and the contact portion, whereby the signal terminal is disposed between those portions and shielded thereby.
  • the shield is generally U-shaped in cross-section, with the contact portion and the shielding portion of the shield defining the legs of the U-shape.
  • the dielectric plug is generally rectangularly shaped in cross-section, with the U-shaped shield substantially covering three sides of the plug.
  • the plug is elongated and the signal-terminal-receiving cavity is formed by a longitudinal through hole in the plug, and the U-shaped shield extends along a substantial length of the plug. Complementary interengaging retaining means between the shield and the plug are provided to properly position the shield longitudinally of the plug.
  • the invention also contemplates that the components of the first and second connector assemblies be configured so that the contact portion on the shield of the second connector assembly engages the ground terminal on the first connector assembly before the signal terminal on the second connector assembly engages the signal terminal on the first connector assembly. Therefore, the grounding circuit will be closed before the signal circuit, thereby assuring proper shielding of the transmission interconnection.
  • the connector system of the invention is designed for terminating and grounding a coaxial cable, generally designated 10, which includes a central conductor core 12 surrounded by an insulating sheath 14, with shielding means 16 between the sheath and an outer insulating jacket 18.
  • Shielding means 16 may be stranded wires, a braid, a foil or the like, as is known in the art.
  • the electrical connector system of the invention includes a first connector assembly, generally designated 20 and shown in Figure 1, and a second connector assembly, generally designated 22 and shown in Figure 2.
  • First connector assembly 20 includes a dielectric housing, generally designated 24, which includes a top wall 26, a bottom wall 28, a side wall 30 and an end wall 32.
  • the dielectric housing is unitarily molded of plastic material or the like.
  • the housing defines a receptacle, generally designated 34, between the top, bottom and side walls.
  • a groove 36 is formed on the inside of bottom wall 28, and a groove 38 is formed on the inside of top wall 26, for purposes described hereinafter.
  • First connector assembly 20 also includes a signal terminal 40 mounted on housing 24 through end wall 32 and includes a mating end 40a and a terminal end 40b.
  • a ground terminal 42 also is mounted on housing 24 through end wall 32 and includes a mating end 42a and a terminal end 42b.
  • Mating ends 40a and 42a of signal terminal 40 and ground terminal 42, respectively, are exposed in receptacle 34 of housing 24.
  • Terminal ends 40b and 42b of signal terminal 40 and ground terminal 42, respectively, may terminate the connector system of the invention to a complementary electronic component, such as inserting the terminal ends of the terminals through appropriate holes in a printed circuit board.
  • the outside of end wall 32 is provided with stand-offs 44 to space connector assembly 20 from the surface of the printed circuit board.
  • terminal ends 40b and 42b of terminals 40 and 42 can be inserted into holes in a printed circuit board which may be vertically oriented, horizontally oriented or canted in any direction.
  • Second connector assembly 22 shown in Figure 2 includes a dielectric plug, generally designated 46, which is unitarily molded of plastic material or the like. The plug is sized and configured for insertion into receptacle 34 of housing 24 of first connector assembly 20.
  • a signal terminal, generally designated 48, is mounted in plug 46 in a through hole longitudinally of the plug and which defines a signal terminal receiving cavity for second connector assembly 22.
  • a forward mouth 50 of the cavity is visible in Figure 2.
  • Dielectric plug 46 includes an integrally molded longitudinal rib 52 on the top of the plug for positioning in slot 38 of housing 24 of the first connector assembly to guide the plug into receptacle 34.
  • a camming latch 54 also is integrally molded with the top of the plug for engaging complementary latch means inside the plug, as described in greater detail hereinafter.
  • a positioning block 56 and a horizontal rib 58 are integrally molded on one side of plug 46 for longitudinally positioning a shield, generally designated 60, also as described in greater detail hereinafter.
  • Signal terminal 48 has two pairs of crimping sections 62 and 64 at a terminating end of the terminal.
  • Crimping sections 62 are crimped onto insulating sheath 14 of coaxial cable 10 to provide strain relief therefor.
  • Crimping sections 64 are crimped onto conductor core 12 of the cable for conductively terminating the signal terminal to the conductor core.
  • the signal terminal has a female mating end 66 which is the lead end of the terminal inserted into the rear of plug 46, with the female mating end being aligned with mouth 50 at the front end of the plug. Consequently, when second connector assembly 22 is inserted into receptacle 34 of first connector assembly 20, mating end 40a of signal terminal 40 will enter mouth 50 and terminate with signal terminal 48 within female end 66 thereof.
  • Shield 60 is a stamped and formed unitary metal component and is configured for positioning about a substantial area of dielectric plug 46. As will be seen in relation to Figures 3 and 4, the shield is generally U-shaped in cross-section for covering a substantial area of three sides of plug 46. Continuing to refer to Figure 2, the shield has a pair of crimping arms 68 for crimping onto shield means 16 of coaxial cable 10 to ground the shield means with the shield.
  • a contact portion 70 in the form of an outwardly bent spring finger, is formed out of shield 60, on the outside of plug 46, for engaging ground terminal 42 inside receptacle 34 of first connector assembly 20. Consequently, ground terminal 42 and contact portion 70 will be disposed within side wall 30 of housing 24 and be protected thereby.
  • Figure 2 also shows that an upwardly directed tab portion 72 of a plate-like side wall 74 of shield 60 is sandwiched between positioning block 56 and rib 58 of the plug to facilitate longitudinally positioning the shield on the plug and retaining the shield lengthwise of the plug.
  • staking detents 76 are stamped into side wall 74 of shield 60 to provide frictional surface retention on the inside of the side wall against the molded plastic material of plug 46.
  • FIGS 3 and 4 show shield 60 in greater detail and like numerals have been applied to the portions of the shield described in relation to Figure 2.
  • the shield is generally U-shaped in cross-section and includes side wall 74 and an opposite side wall 78 defining the legs of the U-shape.
  • a bottom wall 80 defines the bight or base of the U-shape.
  • An elongated aperture 82 is formed in bottom wall 80, for purposes described hereinafter.
  • the transverse inside dimensions of U-shaped shield 60 are very slightly greater than the transverse rectangular configuration of plug 46 so that there is a tight fit between the shield and the plug.
  • side wall 74 includes contact finger 70
  • side wall 78 of the shield is substantially planar.
  • Figure 3 shows how staking detents 76 project inwardly from side walls 74 and 78 to frictionally engage and indent the molded plastic material of plug 46.
  • FIGs 6 and 5 show side elevational and bottom plan views, respectively, of plug 46. Positioning block 56 and rib 58 are clearly shown in this view. In addition, it can be seen that a latch projection 84 and a positioning projection 86 are molded integrally to the bottom of the unitary plug. Figure 5 shows that there actually are two positioning projections 86 at the forward end of the plug. Latch projection 84 is located for snapping into aperture 82 (Fig. 3) of the bottom wall 80 of shield 60. Positioning projections 86 are designed for abutting against a front edge 88 of the shield. Figure 5 shows a pair of positioning and retaining blocks 90 molded integrally with the side of plug 46 opposite that shown in Figure 2, at opposite ends of the plug. These positioning blocks are located for abutting against the front and rear ends of side wall 78 of shield 60.
  • Figure 7 is a longitudinal section through housing 24 of first connector assembly 20 to illustrate that a third groove 92 is formed on the inside of top wall 26, the groove being blocked at the front end thereof, as at 94, by the molded plastic material of the housing. That is why the groove cannot be seen in Figure 1.
  • This groove is of a width for receiving latch projection (54) (Figs. 2) and defines an abutment shoulder 96 for engaging an abutment shoulder of latch projection (54).
  • FIG. 6 shows that latch projection (54) is angled to engage an angled surface 102 (Fig. 7) on housing 24 to provide a camming action for ease of snapping the latch projection into the groove.
  • Figure 7 shows that groove 92 actually extends into an opening 104 in end wall 32 of housing 24. This opening is provided for molding purposes.
  • Figure 7 shows a hole 106 in end wall 32 through which signal terminal 40 (Fig. 1) projects.
  • Figure 8 shows somewhat schematically a feature of the invention wherein the various components of second connector assembly 22 are relatively assembled so that the grounding circuit through the connector system will be closed before the signal circuit is closed, thereby assuring proper shielding during interconnection between the circuit components.
  • contact finger 70 is located for engaging ground terminal pin 42 before signal terminal (40) engages female portion 66 of signal terminal 48.
  • Ground terminal pin 42 and signal terminal pin (40) also are shown schematically as removed from housing 24 of first connector assembly 20 in order to represent that second connector assembly 22 can be used with various electronic components having ground and signal terminal pins.

Claims (11)

  1. Ensemble de connecteur pour munir d'un connecteur et mettre à la masse un câble coaxial (10) ayant une âme conductrice (12) et des moyens de blindage de conducteur (16) à l'extérieur de l'âme (12) comprenant:
    a) un premier ensemble de connecteur (20) comprenant une borne de signal (40) et un contact de masse (42); et
    b) un second ensemble de connecteur (22) comprenant une borne de signal (48) pour munir d'un connecteur l'âme conductrice (12) du câble coaxial et pour se mettre en contact avec la borne de signal (40) du premier ensemble de connecteur (20);
    un blindage (60) pour munir d'un connecteur le moyen de blindage (16) du câble coaxial (10); et
    une partie de contact (70) pour s'engager avec le contact de masse (42); caractérisé en ce que:
    le premier ensemble de connecteur (20) comprend un boîtier diélectrique (24) définissant un réceptacle (34) et la borne de signal (40) et le contact de masse (42) sont montés et présentés à l'intérieur du réceptacle (34);
    le second ensemble de connecteur comprend une prise diélectrique (46) configurée pour l'insertion dans le réceptacle (34) du premier ensemble de connecteur (20) et dans laquelle la borne de signal (40) est montée dans la prise (46) et le blindage (60) est placée autour d'une zone importante de la prise (46), la partie de contact (70) étant sur le côté extérieur de la prise (46) et s'étendant vers l'extérieur depuis celle-ci; et
    le boîtier diélectrique dudit premier ensemble de connecteur (20) comprend une paroi extérieure et le contact de masse comprend une broche de masse mâle (42) disposée à l'intérieur de la paroi extérieure d'où il résulte que la zone d'engagement entre la broche de masse (42) et la partie de contact (70) du blindage (60) est protégée par la paroi extérieure du boîtier (24).
  2. Ensemble de connecteur selon la revendication 1 comprenant des moyens complémentaires de guide d'engagement mutuel (38, 52) entre le boîtier diélectrique (24) du premier ensemble de connecteur (20) et la prise diélectrique (46) du second ensemble de connecteur (22) pour guider la prise (46) dans le réceptacle (34).
  3. Ensemble de connecteur selon l'une quelconque des revendications précédentes dans lequel chacun parmi ledit boîtier électrique (24) et ladite prise électrique (46) comprend un composant monobloc moulé, et lesdits moyens complémentaires de guide d'engagement mutuel (38, 52) sont moulés pour faire partie intégrante de celui-ci.
  4. Ensemble de connecteur selon l'une quelconque des revendications précédentes, comprenant des moyens complémentaires de verrouillage d'engagement mutuel (54, 92) entre le boîtier diélectrique (24) du premier ensemble de connecteur (20) et la prise diélectrique (46) du second ensemble de connecteur (22) pour fixer les ensembles de connecteur dans une condition de mise en contact.
  5. Ensemble de connecteur de la revendication 4 dans lequel chacun parmi le boîtier diélectrique (24) et ladite prise diélectrique (46) comprend un composant monobloc moulé, et lesdits moyens complémentaires de verrouillage d'engagement mutuel (54, 92) sont moulés pour faire partie intégrante de celui-ci.
  6. Ensemble de connecteur selon la revendication 1 dans lequel ledit blindage (60) comprend une partie de blindage espacée de ladite partie de contact (70), et la prise diélectrique (46) possède une cavité de réception de borne de signal disposée entre la partie de blindage (78) et la partie de contact (70) d'où il résulte que la borne de signal (48) est disposée entre lesdites parties et est protégée par celles-ci.
  7. Ensemble de connecteur selon la revendication 6 dans lequel ledit blindage a la forme générale d'un U en coupe transversale, ladite partie de contact (70) et ladite partie de blindage (78) définissant les jambes de la forme en U.
  8. Ensemble de connecteur selon la revendication 7 dans lequel ladite prise diélectrique a une forme générale rectangulaire en coupe transversale, ledit blindage en forme de U recouvrant sensiblement les trois côtés de la prise (46).
  9. Ensemble de connecteur selon la revendication 8 dans lequel ladite prise diélectrique (46) est allongée et ladite cavité de réception de borne de signal est formée par un trou traversant longitudinal dans la prise, et le blindage en forme de U (60) s'étend sur une certaine longueur de la prise (46).
  10. Ensemble de connecteur selon la revendication 9 comprenant des moyens complémentaires de retenue d'engagement mutuel (76) entre le blindage (60) et la prise (46) pour positionner correctement le blindage (60) dans le sens de la longueur de la prise (46).
  11. Ensemble de connecteur selon la revendication 1, dans lequel la borne de signal (40) et la borne de masse (42) du premier ensemble de connecteur (20) et la borne de signal (48) et la partie de contact (70) du blindage (60) du second ensemble de connecteur (22) étant toutes dimensionnées et configurées de telle sorte que la partie de contact (20) s'engage avec la borne de masse (42) avant l'engagement des bornes de signal (40, 48).
EP19910303559 1991-04-22 1991-04-22 Système de connexion pour des câbles coaxiales Expired - Lifetime EP0510264B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19910303559 EP0510264B1 (fr) 1991-04-22 1991-04-22 Système de connexion pour des câbles coaxiales
ES91303559T ES2097792T3 (es) 1991-04-22 1991-04-22 Sistema conectador para cable coaxial.
DE1991624689 DE69124689T2 (de) 1991-04-22 1991-04-22 Verbinderanordnung für Koaxialkabel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19910303559 EP0510264B1 (fr) 1991-04-22 1991-04-22 Système de connexion pour des câbles coaxiales

Publications (2)

Publication Number Publication Date
EP0510264A1 EP0510264A1 (fr) 1992-10-28
EP0510264B1 true EP0510264B1 (fr) 1997-02-12

Family

ID=8208260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910303559 Expired - Lifetime EP0510264B1 (fr) 1991-04-22 1991-04-22 Système de connexion pour des câbles coaxiales

Country Status (3)

Country Link
EP (1) EP0510264B1 (fr)
DE (1) DE69124689T2 (fr)
ES (1) ES2097792T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT68195A (en) * 1993-09-14 1995-05-29 Gaertner Karl Telegaertner Connecting box and connecting cable for forming connecting device for a data network
DE4331143C1 (de) * 1993-09-14 1995-02-02 Gaertner Karl Telegaertner Anschlußdose zur Bildung einer Anschlußeinrichtung für ein Datennetz
EP1003250B1 (fr) * 1998-11-19 2004-10-13 Sumitomo Wiring Systems, Ltd. Un connecteur blindé, un jeu de connecteurs blindés et procédé pour connecter un connecteur blindé avec un câble blindé
EP1003244B8 (fr) * 1998-11-19 2005-08-31 Sumitomo Wiring Systems, Ltd. Connecteur blindé et procedé pour connecter un connecteur blindé avec un câble blindé
GB0316521D0 (en) * 2003-07-15 2003-08-20 Corus Uk Ltd Improvements in or relating to damping of rail tracks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587028A (en) * 1969-04-28 1971-06-22 Ibm Coaxial connector guide and grounding structure
US3723942A (en) * 1972-03-03 1973-03-27 Arrow Hart Inc Grounding clip electric receptacles
US4398783A (en) * 1981-06-22 1983-08-16 International Telephone & Telegraph Corporation Coaxial cable connector

Also Published As

Publication number Publication date
DE69124689D1 (de) 1997-03-27
EP0510264A1 (fr) 1992-10-28
DE69124689T2 (de) 1997-09-11
ES2097792T3 (es) 1997-04-16

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