EP2104186A1 - Körper für eine elektrische Buchse oder einen elektrischen Stecker - Google Patents

Körper für eine elektrische Buchse oder einen elektrischen Stecker Download PDF

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Publication number
EP2104186A1
EP2104186A1 EP08425187A EP08425187A EP2104186A1 EP 2104186 A1 EP2104186 A1 EP 2104186A1 EP 08425187 A EP08425187 A EP 08425187A EP 08425187 A EP08425187 A EP 08425187A EP 2104186 A1 EP2104186 A1 EP 2104186A1
Authority
EP
European Patent Office
Prior art keywords
locking
detent
locking member
electric plug
socket according
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.)
Withdrawn
Application number
EP08425187A
Other languages
English (en)
French (fr)
Inventor
Ivo Nardi
Francesco Cepolina
Manuel Cometto
Vahan Shahbazians
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.)
Bocchiotti SpA per l'Industria Elettrotecnica Soc
Original Assignee
Bocchiotti SpA per l'Industria Elettrotecnica Soc
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 Bocchiotti SpA per l'Industria Elettrotecnica Soc filed Critical Bocchiotti SpA per l'Industria Elettrotecnica Soc
Priority to EP08425187A priority Critical patent/EP2104186A1/de
Priority to RU2009110386/07A priority patent/RU2009110386A/ru
Publication of EP2104186A1 publication Critical patent/EP2104186A1/de
Withdrawn legal-status Critical Current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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • 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
    • H01R13/508—Bases; Cases composed of different pieces assembled by a separate clip or spring
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/625—Casing or ring with bayonet engagement
    • 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
    • H01R13/6275—Latching arms not integral with the housing
    • 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
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • 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
    • H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement

Definitions

  • the present invention generally relates to electrical sockets or plugs for industrial or service sector use, and particularly relates to the body of such sockets or plugs.
  • the known electrical sockets or plugs for use in the industrial or service sector comprise a body and a connecting modular device received in the body and provided with pins for the electric contact coupling with the alveoluses of a complementary socket, or alveoluses for the electric contact coupling with the pins of a plug.
  • the body is usually composed of a gripping member and a modular device-holding member mutually constrained in the axial direction through a bayonet coupling.
  • a further known solution provides the mutual locking of the two coupled members by means of an elastic tongue which is manufactured as one piece with one of the body plug members, and adapted to snap engage a resting shoulder of the other body plug member.
  • Such solution while being advantageous from the manufacturing point of view, turns out to be hardly unblocked, due to the need to press a screwdriver tip against the elastic tongue, while concomitantly performing a relative rotation of the two body plug members.
  • the object of the present invention is to propose a body for electric plug or socket having such characteristics as to obviate at least some of the drawbacks cited with reference to the prior art.
  • a particular object of the present invention is to propose a body for electric plug or socket, in which the coupling of the gripping and modular device-holding members can be locked and unlocked by means of simple manual operations, which do not require a particular dexterity.
  • a body for electric plug or socket for industrial or service sector use comprising:
  • Fig. 1 is a partially sectional side view of a body for electrical socket or plug according to an embodiment of the invention
  • Fig. 2 is an enlarged sectional view of the detail II in Fig. 1 in a locking configuration
  • Fig. 3 is the enlarged sectional view of the detail II in Fig. 1 in a release configuration
  • Figs. 4, 5, and 6 illustrate an opening sequence of the body for electrical socket or plug according to an embodiment of the invention
  • Figs.7, 8, and 9 illustrate a closure sequence of the body for electrical socket or plug according to an embodiment of the invention
  • Fig. 10 is a partially sectional front view according to the line X-X in Fig. 1 ;
  • Fig. 11 is a front view of a modular device-holding member of the body for electrical socket or plug according to an embodiment
  • Fig. 12 is a side view of the modular device-holding member in Fig. 11 ;
  • Fig. 13 is a side view of a modular device-holding member according to a further embodiment
  • Fig. 14 is a side view of a modular device-holding member according to a still further embodiment
  • Fig. 15 is an enlarged view of a detail in Fig. 14 ;
  • Fig. 16 is a top view of a locking member of the body for electrical socket or plug according to an embodiment
  • Fig. 17 is a sectional view according to the line XVII-XVII in Fig. 16 ;
  • Fig. 18 is a rear view of the locking member in Fig. 16 ;
  • Fig. 19 is a bottom view of the locking member in Fig. 16 ;
  • Fig. 20 is a perspective view of the locking member in Fig. 16 .
  • the body of an electric plug or socket is generally indicated with the reference numeral 1.
  • the body 1 comprises a gripping member 2, a modular device-holding member 3 adapted to receive a connecting modular device 4, rotative coupling means, particularly of the bayonet type, for example, three radial tongues 7 (hidden and schematically indicated with a hatched line in Fig. 6 ) formed at a collar 8 of the gripping member 2, and three radial tongues 5 formed at a neck 6 of the modular device-holding member 3 and so configured as to carry out a coupling thereof in an axial direction L-L of the body 1.
  • rotative coupling means particularly of the bayonet type, for example, three radial tongues 7 (hidden and schematically indicated with a hatched line in Fig. 6 ) formed at a collar 8 of the gripping member 2, and three radial tongues 5 formed at a neck 6 of the modular device-holding member 3 and so configured as to carry out a coupling thereof in an axial direction L-L of the
  • the body 1 further comprises a locking device 9 adapted to lock the bayonet coupling in a closing position.
  • Such locking device 9 generally comprises an engaging portion 10 connected to one 3 of the gripping 2 and modular device-holding 3 members, as well as a locking member 11 connected to the other 2 of the gripping 2 and modular device-holding 3 members.
  • the locking member 11 is such as it can be moved between a locking position, in which it engages the engaging portion 10 such as to prevent a relative rotation of the gripping 2 and modular device-holding 3 members in an opening direction of the bayonet coupling, and a release position, in which it does not prevent such opening relative rotation.
  • detent means are provided which, upon a bayonet coupling in the closing position, prevent a return of the locking member 11 from the release position to the locking position.
  • Such detent means can be implemented, for example, through frictional, interference, or shape-coupling means. An advantageous, non-limiting embodiment of such detent means will be described herein below.
  • the locking member 11 is rotatably supported between the locking position and the release position around a transversal axis R-R, preferably perpendicular to the longitudinal axis L-L of the body 1, and comprises a seat or slit 12 for the application of a tool, for example a screwdriver tip, in order to rotate the locking member 11 to the release position.
  • a tool for example a screwdriver tip
  • the engaging portion preferably comprises a locking detent 10 movably supported in an axial direction (essentially parallel to the longitudinal axis L-L of the body 1) and urged, by first elastic means 13 towards the other member 2 in an engaging position with a seat 14 formed in the locking member 11.
  • the locking detent 10 comprises a first side surface 15 radially inwardly relative to the body 1 and inclined so that the locking member 11 movement from the locking position to the release position moves the locking detent 10 against the elastic force of the first elastic means 13 out of the locking seat 14.
  • the locking detent 10 comprises a front surface 16 facing the closure rotation direction of the body 1 and shaped as a ramp so that, during a relative rotation movement towards the body 1 closing position, the locking member 12 slides on the ramped front surface 16 and moves the locking detent 10 against the elastic force of the first elastic means 13 axially from the other member 2 in order to allow a positioning of the locking member 11 above the locking detent 10 and the snap-back of the detent 10 to the engaging position thereof in the seat 14.
  • the locking detent 10 comprises a rear surface 17 opposite the front surface 16, and facing the opening rotation direction of the body 1.
  • Such rear surface 17 is shaped with undercut or pawl, so that, in the locking position, a relative opening rotation of the body 1 and the consequent circumferential movement of the locking member 11 to the opening direction involve a further axial movement of the locking detent 10 towards the locking position thereof (or, in other terms: upwardly) and a mutual coupling with the locking seat 14, so as to ensure a locking.
  • the locking detent 10 comprises a second side surface 18, opposite the first side surface 15 and so configured as to form an abutment which, after the snap-back of the locking detent 10 to the engaging position, holds the locking member 11 in the release position. In this manner, the locking detent 10 implements the above-mentioned locking member detent means.
  • a clearance 19 is advantageously formed on the rear side of the locking detent 10, which allows a return of the locking member 11 to the locking position (preferably automatic reset of the locking device 9), when a relative rotation of the gripping 2 and modular device-holding 3 members to the opening direction is performed.
  • the first elastic means 13 can comprise a plastic supporting structure, preferably axially compliant and manufactured as one piece both with locking detent 10 and member 3.
  • Figs. 12, 13, and 14 illustrate possible embodiments, according to which the first elastic means comprise a projecting tongue extending in the circumferential direction of the member 3 ( Fig. 12 ), an arc having twp side abutting points, both of which being sufficiently thin to form elastic hinges ( Fig. 14 ), or an arc having a first essentially rigid side abutment, and a second side abutment arranged on the side facing the opening direction, and being sufficiently thin to form an elastic hinge ( Fig. 13 ).
  • the first elastic means comprise a projecting tongue extending in the circumferential direction of the member 3 ( Fig. 12 ), an arc having twp side abutting points, both of which being sufficiently thin to form elastic hinges ( Fig. 14 ), or an arc having a first essentially rigid side abutment, and a second side abutment arranged on the side facing the opening direction, and being sufficiently thin to form an elastic hinge ( Fig. 13 ).
  • the first elastic means comprise a L-shaped projecting tongue 29 connected to the member 3, for example, to a circumferential flange 30 (different from optional radially projecting tongues of the bayonet) of such member, and having a first portion 31 essentially extending in the longitudinal direction L of the body 1 and connecting tongue 29 to the member 3, and a second portion 32 manufactured as one piece with such first portion 31, and extending in the circumferential direction relative to the longitudinal axis L.
  • the second portion 32 ends with a projecting free end, and forms the locking detent 10.
  • the first elastic means comprise a projecting tongue 33 connected to the member 3, for example, to a circumferential flange 30 (different from optional radially projecting tongues of the bayonet) of such member.
  • the projecting tongue 33 is, on the whole, under a L shape, with a first portion 34 essentially extending in the longitudinal direction L of the body 1 and connecting tongue 33 to the member 3, and a second portion 35 manufactured as one piece with such first portion 31, and extending in an approximately circumferential direction relative to the longitudinal axis L.
  • the second portion 32 ends with a projecting free end, and forms the locking detent 10.
  • Such overall L-shape is created by means of a shaft extending from a first connecting point with the member 3 to the free end, along a first L-shaped path 36, and from the free end, where the shaft is U-bent, to a second connecting point with the member 3 (near the first connecting point), along a second L-shaped path 37.
  • the shaft gradually tapers along the entire length thereof, and the first and second L-shaped paths preferably lie in the same generally L-shaped plane of the tongue 33.
  • the locking member 11 With reference again to the locking member 11 ( Figs. 2, 3 , 17-20 ), it generally comprises an outer surface 20 radially facing the body 1 outer part and defining the above-mentioned tool seat 12 to receive a screwdriver tip, an inner surface 21 radially facing the body 1 inner part, a lower surface 22 defining the locking seat 14, and two side surfaces 23 on which hinging side seats 24 of locking member 11 to member 2 are formed (in relief, or in bas-relief).
  • the locking member 11 is manufactured as one piece with the member 2 and is connected to the latter by a portion having a thickness sufficiently thin to perform a hinging between locking member 11 and member 2.
  • the above-mentioned tool seat 12 can be configured as a slit which is open on a single side (preferably radially outer) or, alternatively, as a bevelling or notch which is open on two sides, in order to allow the insertion of a tool (screwdriver tip) into the space which has been thus obtained between locking member and member 2.
  • the locking member 11 is configured so that, at least in the locking position, the direction of the elastic force applied by the locking detent 10 on the locking member 11 lower surface 22 is oriented relative to the locking member 11 rotational axis defined by the hinging seats 24 ,so as not to create any release moments, and preferably so as to create a moment which urges the locking member 11 to the locking position.
  • the direction of the elastic force applied by the locking detent 10 on the locking member 11 lower surface 22 and the locking member 11 rotational axis lie in a same plane, which is essentially parallel to the body 1 longitudinal axis L-L.
  • the lower surface 22 forms, on the side facing the closure rotation direction, a ramp 25 ( Fig. 19 ) adapted to cooperate with the locking detent 10 front surface 16 in order to promote the locking detent 10 movement and the locking member 11 positioning above the locking detent 10 during the closure of the bayonet-type connection.
  • the locking seat 14 comprises a side surface 26 which is radially inner and inclined so as to cooperate with the corresponding locking detent 10 surface 15, so that the locking member 11 movement from the locking position to the release position moves the locking detent 10 against the elastic force of the first elastic means 13 out of engagement with the seat 14.
  • the inclined surfaces 16, 25, which move the locking detent during the relative closure rotation of the gripping and modular device-holding members, and the inclined surfaces 15, 26, which move the locking detent during the locking member rotation from the locking position to the release position are mutually distinct and spaced apart, so as to make the two functions independent.
  • second elastic means 27 acting between locking member 11 and member 2 so as to elastically urge the locking member 11 to the locking position thereof.
  • second elastic means can be implemented, for example, by one or more elastic tongues which are manufactured as one piece with the locking member 11 and extending from the inner side 21 thereof so that a free end thereof elastically abuts against the member 2 ( Fig. 20 ).
  • one or more stop cams or little teeth 28 can be provided, which are adapted to signal when the closing position is reached by means of a perceptible and/or audible clicking sound.
  • such little teeth 28 can be formed on the bayonet-type device radial tongues ( Fig. 11 ).
  • the locking device individual members can be made of the same material, preferably plastic or, alternatively, of different materials, for example, metallic materials, and connected to the members 2 and 3.
  • locking member, locking portion, and first and/or second elastic means can be manufactured separately from different materials and subsequently connected to the body 1.
  • the body for electrical socket or plug according to the present invention has a number of advantages.
  • the movement is divided in two different stages, which can be easily performed without experience or particular dexterity.
  • the tool tip acts upon a component (tool seat) which is distinct and spaced apart from locking detent and locking seat, which remain protected, so that damages due to improper or unduly constrained use of the tool do not negatively affect the locking and releasing function of the coupling.
  • both the locking device locking and reset occur automatically, without any manual intervention, and only the locking member release (which rarely occurs, and only in exceptional cases) involves an additional manual intervention (which, by the way, is required due to safety reasons).
EP08425187A 2008-03-21 2008-03-21 Körper für eine elektrische Buchse oder einen elektrischen Stecker Withdrawn EP2104186A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08425187A EP2104186A1 (de) 2008-03-21 2008-03-21 Körper für eine elektrische Buchse oder einen elektrischen Stecker
RU2009110386/07A RU2009110386A (ru) 2008-03-21 2009-03-20 Корпус для электрической розетки или вилки

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425187A EP2104186A1 (de) 2008-03-21 2008-03-21 Körper für eine elektrische Buchse oder einen elektrischen Stecker

Publications (1)

Publication Number Publication Date
EP2104186A1 true EP2104186A1 (de) 2009-09-23

Family

ID=39672998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425187A Withdrawn EP2104186A1 (de) 2008-03-21 2008-03-21 Körper für eine elektrische Buchse oder einen elektrischen Stecker

Country Status (2)

Country Link
EP (1) EP2104186A1 (de)
RU (1) RU2009110386A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3026762A1 (de) * 2014-11-27 2016-06-01 ERICH JAEGER GmbH + Co. KG Stecker zum einstecken in eine steckdose
EP3176885A1 (de) * 2015-12-02 2017-06-07 Kathrein Werke KG Steckverbinder und steckerverbinderanordnung
IT201800009075A1 (it) * 2018-10-02 2019-01-02 Valentini Srl Dispositivo di connessione elettrica
BE1025303B1 (de) * 2017-06-08 2019-01-18 Phoenix Contact Gmbh & Co. Kg Steckverbinder mit einem Verriegelungsteil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053198A (en) * 1976-04-23 1977-10-11 Slater Electric Inc. Electrical connector means
US4359255A (en) * 1980-11-14 1982-11-16 The Bendix Corporation Coupling ring having detent means
DE4224375C1 (en) * 1992-07-24 1993-04-01 Gebhard, Dietrich, 7502 Malsch, De Plug connecting to socket for motor vehicle trailer - has spring biassing pivoted lever into locking position
DE20201530U1 (de) * 2001-11-29 2002-04-11 K T Kalttech S R O Universalstecker
EP1455421A1 (de) * 2003-03-05 2004-09-08 Tyco Electronics AMP GmbH Stecker mit Drehring mit einrastbarem Halteelement
WO2004105195A1 (en) * 2003-05-21 2004-12-02 Saip & Schyller S.P.A. Coupling device for the contact block and the handle of an electrical connector
US20060240698A1 (en) * 2005-04-25 2006-10-26 Yazaki Corporation Electrical connector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053198A (en) * 1976-04-23 1977-10-11 Slater Electric Inc. Electrical connector means
US4359255A (en) * 1980-11-14 1982-11-16 The Bendix Corporation Coupling ring having detent means
DE4224375C1 (en) * 1992-07-24 1993-04-01 Gebhard, Dietrich, 7502 Malsch, De Plug connecting to socket for motor vehicle trailer - has spring biassing pivoted lever into locking position
DE20201530U1 (de) * 2001-11-29 2002-04-11 K T Kalttech S R O Universalstecker
EP1455421A1 (de) * 2003-03-05 2004-09-08 Tyco Electronics AMP GmbH Stecker mit Drehring mit einrastbarem Halteelement
WO2004105195A1 (en) * 2003-05-21 2004-12-02 Saip & Schyller S.P.A. Coupling device for the contact block and the handle of an electrical connector
US20060240698A1 (en) * 2005-04-25 2006-10-26 Yazaki Corporation Electrical connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3026762A1 (de) * 2014-11-27 2016-06-01 ERICH JAEGER GmbH + Co. KG Stecker zum einstecken in eine steckdose
EP3176885A1 (de) * 2015-12-02 2017-06-07 Kathrein Werke KG Steckverbinder und steckerverbinderanordnung
BE1025303B1 (de) * 2017-06-08 2019-01-18 Phoenix Contact Gmbh & Co. Kg Steckverbinder mit einem Verriegelungsteil
IT201800009075A1 (it) * 2018-10-02 2019-01-02 Valentini Srl Dispositivo di connessione elettrica
EP3633800A1 (de) * 2018-10-02 2020-04-08 Valentini S.r.l. Elektrische verbindungsvorrichtung

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