EP0106931A1 - Steckdose mit Schnappeinschaltung und -trennung - Google Patents

Steckdose mit Schnappeinschaltung und -trennung Download PDF

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Publication number
EP0106931A1
EP0106931A1 EP82401934A EP82401934A EP0106931A1 EP 0106931 A1 EP0106931 A1 EP 0106931A1 EP 82401934 A EP82401934 A EP 82401934A EP 82401934 A EP82401934 A EP 82401934A EP 0106931 A1 EP0106931 A1 EP 0106931A1
Authority
EP
European Patent Office
Prior art keywords
base
plug
rotation
arm
relative
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
EP82401934A
Other languages
English (en)
French (fr)
Other versions
EP0106931B1 (de
Inventor
Yves Le Magourou
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.)
Societe dExploitation des Procedes Marechal SEPM SA
Original Assignee
Societe dExploitation des Procedes Marechal SEPM SA
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 Societe dExploitation des Procedes Marechal SEPM SA filed Critical Societe dExploitation des Procedes Marechal SEPM SA
Priority to DE8282401934T priority Critical patent/DE3270885D1/de
Priority to EP82401934A priority patent/EP0106931B1/de
Priority to IN479/DEL/83A priority patent/IN159482B/en
Priority to AU17801/83A priority patent/AU555835B2/en
Priority to MX199014A priority patent/MX156351A/es
Priority to US06/542,394 priority patent/US4525610A/en
Priority to JP58197483A priority patent/JPS5998424A/ja
Publication of EP0106931A1 publication Critical patent/EP0106931A1/de
Application granted granted Critical
Publication of EP0106931B1 publication Critical patent/EP0106931B1/de
Expired 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/14—Energy stored by deformation of elastic members by twisting of torsion members
    • H01H5/16—Energy stored by deformation of elastic members by twisting of torsion members with auxiliary means for temporarily holding parts until torsion member is sufficiently strained
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/71—Contact members of coupling parts operating as switch, e.g. linear or rotational movement required after mechanical engagement of coupling part to establish electrical connection
    • 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
    • H01R13/527—Flameproof cases
    • 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

Definitions

  • the invention relates to a socket outlet comprising a base connected to the power supply line and a combined plug serving the device of use and meeting safety standards according to which the base contacts must remain de-energized when the plug is removed from the base.
  • the invention lends itself particularly well to the production of so-called ADF sockets intended for use in an explosion-proof environment.
  • the known devices generally associate with the socket outlet, a switch arranged between the supply line and the base and operated, at least for engagement. , by the rotation of said base after fitting the plug.
  • Such an arrangement has the disadvantage of requiring a flexible connection between each contact of the base and the corresponding arrival terminal, a risk of deterioration existing at each end of each flexible connection as a result of successive operations.
  • the engagement remains conventional and is therefore not entirely satisfactory for use in an explosive environment.
  • the invention relates to a socket outlet constituted, on the one hand, by a plug comprising a body in which is rigidly mounted an insulating support carrying the plug pins intended to be connected respectively with the elementary conductors of the multiconductor cable of use and, on the other hand, a base comprising a body including the supply line input terminals and, rotatably mounted in said body, an insulating block dug with wells in each of which is arranged, in a room tubular, a base pin slidably mounted under the action of an elastic means urging it outwards to a stop position and intended to cooperate elastically with a conjugate pin of the plug, when the plug is fitted and the base, the bodies of which carry combined means guide and locking, under the effect of a movement associating an axial displacement and a rotation of one relative to the other carried out successively or simultaneously, the plug pins driving the insulating block in this rotation.
  • Each of the sliding base pins can be either a solid pin cooperating with the plug pin which is conjugated to it by end contact, or a pin comprising at its end a socket intended to come to cap the end of the corresponding plug pin .
  • the socket according to the invention is remarkable in that the electrical connection between each arrival terminal and the corresponding base pin comprises the coupling of two contact grains, one of which is connected to the arrival terminal and the another is carried by the end of a conductive arm secured to the spindle considered and able to pivot around the lower part of the tube and that when the plug and the base are not fitted, the grains to be joined are arranged relative to the axis of the base in different relative angular positions, the rotation of the interlocking movement bringing them into angular coincidence, that means are provided for first of all keeping the arm stationary relative to the insulating block and releasing it substantially at the end relative rotation of the plug relative to the base, allowing it to pivot around the corresponding tube to achieve the abrupt coupling of the two contact grains under the effect of the partial release of the
  • the reference 11 designates a plug of conventional design for an industrial outlet, the body 11a of which carries an insulating disc 13 on which the plug pins such as 17 are mounted, the other plug pins not having have been shown to simplify the drawing.
  • the departures of the conductive wires 19 are effected by wire clamps 15 integral with the pins and the multi-conductor cable, not shown, the elementary conductors of which lead respectively to each pin, passes through the gland, in itself known, designated in its generality by 21,
  • the plug body ll also has, externally, a locking lug 23, a bayonet lug 25 and possibly, a flange provided with an annular seal not shown, intended to cooperate with corresponding elements of the base when it is an ADF socket.
  • the base to which lead the supply wires such as 48, of which only one has been shown in FIG. 1, is designated by the general reference 10 and comprises a housing 12 made of insulating material, secured to an upper annular body 14 having a bearing shoulder 14b for its fixing according to explosion-proof safety standards, called ADF standards, on a load-bearing wall using conventional means which have not been shown,
  • ADF standards explosion-proof safety standards
  • the body 14 carries an axis 18 on which a hook 20 is articulated biased by a spring 22 towards the axis of the device.
  • the annular body 14 has a large axial aperture carrying a thread 14a which cooperates with the corresponding thread 28a by which a block of insulating material 28 can be engaged in the body 14 then present, in the operating position of the assembly, a possibility of rotation coaxially with said body, that is to say in fact, with respect to the base 10 of which the latter forms an integral part.
  • the wells such as 30 in which the tubular sheaths 29 are crimped are housed pins 31 intended to cooperate by end contact with the plug pins 17; in the figures, only one plug pin and one base pin have been shown, in order to simplify the drawing; it is however a base with four contacts without counting the earth contact not shown.
  • annular groove 32 intended to receive the tubular end 11b of the plug body 11a.
  • the internal face of the body 14 has a ramp for bayonet connection intended to cooperate with the lug 25 carried by the plug, said ramp comprising in a known manner an access corridor of axial direction relative to the base and a corridor locking located in a transverse plane thereof.
  • the block 28 has a cylindrical axial extension 35 on the underside of which is fixed by a screw 38 a disc 37, removable for mounting the device.
  • each spindle which can rotate in its sheath, leads to this same lower end an arm 51 transverse to its axis, made of electrically conductive material, the end of which carries a contact grain 45 and which is pivotally mounted around the lower end of the tubular sheath 29.
  • the line contacts such as 55 are respectively arranged at the ends of the arms 51 and they are connected, by the conductive strips 46 and the arrival terminals 47, to the line wires such as 48
  • a hooking part 49 in the general shape of a star molded in insulating material, This star part has a number of arms equal to the number of base pins and can rotate around the extension 35,
  • a spacer spring 58 (FIGS. 3A-3F) disposed between a bearing surface integral with the disc 37 and a bearing surface integral with the attachment piece 49 ensures the latter to rotate when the block 28 is moved towards the latching position, the reverse rotation drive of the part 49 being provided by a lug 59 (FIG.
  • Each arm 51 is subjected to the action of a helical spring 50 threaded on the lower part of the corresponding tubular sheath 29.
  • One of the end branches 50a of the spring 50 extends towards the periphery of the housing 12 to engage and remain trapped in a groove 44 parallel to the axis of the device and limited by two abutment ribs 44a and 44b making inwardly projecting from the wall of said housing.
  • the other end branch 50b first extends parallel to the arm 51 and is then bent downward at a right angle to become parallel to the axis of the device and to engage in conjugate perforations formed at the end of the arm 51, the tip 52 of said branch 50b tr an completely sversing this end to come to the level of the attachment piece 49.
  • Each branch of the star-shaped hooking piece 49 has at its end, on the face turned towards the latching position, a rounded guide ramp 43, leading to a notch 53, for the end 52 of the spring 50.
  • At least one latch 41 disposed in a housing 41a at the bottom of the housing 12 and subjected to the action of a spring 41b urging it out of said housing cooperates with a perforation 39 of the disc 37 to lock the insulating block 28 in position rest when the plug 11 and the base 10 are separated.
  • the perforation 39, in this position, is plumb with a well 30 and the corresponding pin 31 has an extension 34 which engages in said perforation until it is flush with the underside of the disc 37 at the end of the axial movement for inserting the plug into the base, so as to erase the latch 41,
  • This arrangement ensuring the locking of the insulating block 28 when the plug 11 is removed, prevents any rotation towards the latching position which guarantees the power off base pins.
  • a lock is also provided in the engaged position. It is obtained automatically at the end of rotation of the plug 11 by engaging the hook 20 in a fork lug 23. Unlocking is achieved by tilting the hook 20 against the action of the spring 22. It is necessary note that the hook 20 can in the rest position (plug and separate base), be used for hanging a cover (not shown) hinged on the part annular upper part 14 of the base 10 opposite said hook.
  • the block 28 can continue its rotation over a small amplitude by compressing the spring 58 and as the blcc 28 drives the arms 51 with their springs 50, the ends 52 of the springs are released from the notches 53 and the arms 51 pivot suddenly towards the wall of the housing 12 under the action of the elastic energy accumulated by the springs during rotation.
  • the stop 56 is located in such a way that the contact grain 45 of each arm comes to bear against the opposing contact grain 55 connected to a line terminal 47.
  • the device is then in its latching position (FIG. 3C) and, as said above, is locked there by the cooperation of the hook 20 and the lug 23.
  • the stop 56 is arranged so the arms 51 pivot slightly before the contact grains 45 are exactly in the axis of the contact grains 55.
  • the rotation continues for a short time while the opposing contacts are already engaged, which determines a self-cleaning of contacts by friction.
  • the contact grains at the end of the pins 17 and 31 / respectively of the plug and of the base are subjected to a self-cleaning by friction during the pivoting of the arms 51, integral with the pins 31.
  • the combined plug and base pins (respectively 17 and 31) cooperate elastically, the base pin 31 being subjected to the action of a spring 42 urging it towards the plug pin 17. So that there is elastic contact so it is clear, as has been said, that the pin 17 pushes the pin 31 during the axial movement of driving the plug 11 into the base 10.
  • the arm 51 which is integral, with its grain contact 45, of pin 31 follows this movement and there is therefore, relative to the axis of the supposed vertical device, a difference in level of contact grain 45 between the rest position (plug and base separated) and the position and it must be taken into account for the position of the antagonistic contact grain 55.
  • This difference can be very small but it is advantageous that it is greater than the diameter of a contact grain because then, in the rest position, the grains to be coupled 45 and 55 are located not only da ns different relative angular positions but also entirely at different levels which increases safety, a rotation of the block 28 without introduction of the plug, for example in the event of failure of the locking means (41, 41b), which cannot then cause the engagement.
  • a socket according to the invention can use all the arrangements known on other electrical connection devices (angular offset of at least one contact, insulating support and block with variable angular position, single or double safety disc, etc. ..).

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP82401934A 1982-10-21 1982-10-21 Steckdose mit Schnappeinschaltung und -trennung Expired EP0106931B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE8282401934T DE3270885D1 (en) 1982-10-21 1982-10-21 Socket having a snap-action connection and disconnection
EP82401934A EP0106931B1 (de) 1982-10-21 1982-10-21 Steckdose mit Schnappeinschaltung und -trennung
IN479/DEL/83A IN159482B (de) 1982-10-21 1983-07-15
AU17801/83A AU555835B2 (en) 1982-10-21 1983-08-09 Quick-make-break plug and socket connector
MX199014A MX156351A (es) 1982-10-21 1983-10-05 Mejoras a conjunto de clavija y conector de receptaculo sobretodo para un medio inflamable o explosivo
US06/542,394 US4525610A (en) 1982-10-21 1983-10-17 Quick make and break plug and socket connector
JP58197483A JPS5998424A (ja) 1982-10-21 1983-10-21 プラグおよびソケツトコネクタ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82401934A EP0106931B1 (de) 1982-10-21 1982-10-21 Steckdose mit Schnappeinschaltung und -trennung

Publications (2)

Publication Number Publication Date
EP0106931A1 true EP0106931A1 (de) 1984-05-02
EP0106931B1 EP0106931B1 (de) 1986-04-30

Family

ID=8189946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401934A Expired EP0106931B1 (de) 1982-10-21 1982-10-21 Steckdose mit Schnappeinschaltung und -trennung

Country Status (7)

Country Link
US (1) US4525610A (de)
EP (1) EP0106931B1 (de)
JP (1) JPS5998424A (de)
AU (1) AU555835B2 (de)
DE (1) DE3270885D1 (de)
IN (1) IN159482B (de)
MX (1) MX156351A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216645A2 (de) * 1985-08-21 1987-04-01 Société d'Exploitation des Procédés Maréchal S.E.P.M. (Société Anonyme) Vorrichtung zur Verhinderung der relativen Rückbewegung zweier ineinander steckbarer Teile, von denen einer manuell bedient wird
FR2933244A1 (fr) * 2008-06-25 2010-01-01 Marechal Sepm Dispositif de connexion electrique securise

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185828B1 (de) * 1984-12-27 1988-05-18 Société d'Exploitation des Procédés Maréchal S.E.P.M. (Société Anonyme) Steckdose, insbesondere bestimmt für starke Ströme
US4813786A (en) * 1987-03-17 1989-03-21 Ohio Tool Systems, Inc. Fluid mixing unit
US6015307A (en) * 1998-10-21 2000-01-18 Chiu; Pen-Fu Electric outlet with rotary socket bodies
US6382990B1 (en) * 1999-11-19 2002-05-07 Societe D'exploitation Des Procedes Marechal (Sepm) Electric connection base plate in particular for explosible environment and method for making same
US6638074B1 (en) 2002-02-27 2003-10-28 Gregory S Fisher Electrical socket with rotating receptacle
US6799984B2 (en) * 2002-05-31 2004-10-05 Mine Safety Appliances Company Connectors, instrument assemblies and methods of connecting or disconnecting electrical connections under power
CN102412490B (zh) * 2011-12-29 2014-01-29 苏州升德精密电气有限公司 一种二段旋转式插座
US9252539B2 (en) 2012-11-02 2016-02-02 Hubbell Incorporated Internally switched female receptacle or connector with plug-latching safety interlock
US9819118B2 (en) 2015-07-16 2017-11-14 Eaton Corporation Switching power connector and electrical connection element with safety interlock
US9887489B1 (en) 2016-10-19 2018-02-06 Hubbell Incorporated Electrical connector with plug latching assembly
US9899767B1 (en) 2016-12-28 2018-02-20 Eaton Corporation Connector with clockable integrated power switching
WO2020069751A1 (en) * 2018-10-05 2020-04-09 Volvo Construction Equipment Ab A power supply connector with multiple connections for relatively moving parts of a working machine, a use of a power supply connector with multiple connections
CN109524839A (zh) * 2018-12-04 2019-03-26 林明镜 一种不会松脱的插头
CN110544603B (zh) * 2019-09-12 2024-03-19 深圳市雄韬锂电有限公司 一种快换式接触器结构
US11469546B2 (en) 2020-09-29 2022-10-11 Western Technology, Inc. Electrical connector system
USD1006276S1 (en) 2021-08-06 2023-11-28 Western Technology, Inc. Portable industrial light

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE337290C (de) * 1919-10-19 1921-05-28 Carl Kenter Jun Steckerschalter, bei welchem im Dosenkoerper eine Schaltvorrichtung angeordnet ist, welche durch Verdrehen des eingefuehrten Steckers den Stromschluss bewirkt
DE462664C (de) * 1926-12-09 1928-07-16 Otto Ellinger Steckerschalter mit Momentschaltung, bei dem der Buchsenkoerper durch den Stecker in die Einschaltlage gedreht wird
DE1102237B (de) * 1956-07-23 1961-03-16 Max Frost Steckerkupplung
US3041420A (en) * 1958-09-29 1962-06-26 Crouse Hinds Co Plug and receptacle unit
DE1242735B (de) * 1965-04-21 1967-06-22 Marquardt J & J Durch einen Stoessel betaetigbarer elektrischer Schnappschalter
US3510613A (en) * 1967-07-10 1970-05-05 Cts Corp Snap action switch and combination switch and variable resistance control
US4154991A (en) * 1977-09-21 1979-05-15 Stewart-Warner Corporation Rotary switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619631C (de) * 1934-04-24 1935-10-25 Schanzenbach & Co G M B H G Steckdose mit verriegelter Isolierabdeckung
US2857486A (en) * 1956-06-22 1958-10-21 Hubbell Inc Harvey Dead front receptacle
US3853376A (en) * 1972-03-30 1974-12-10 G Marechal Electric connection devices
FR2270696B1 (de) * 1974-03-14 1977-10-07 Marechal Sepm

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE337290C (de) * 1919-10-19 1921-05-28 Carl Kenter Jun Steckerschalter, bei welchem im Dosenkoerper eine Schaltvorrichtung angeordnet ist, welche durch Verdrehen des eingefuehrten Steckers den Stromschluss bewirkt
DE462664C (de) * 1926-12-09 1928-07-16 Otto Ellinger Steckerschalter mit Momentschaltung, bei dem der Buchsenkoerper durch den Stecker in die Einschaltlage gedreht wird
DE1102237B (de) * 1956-07-23 1961-03-16 Max Frost Steckerkupplung
US3041420A (en) * 1958-09-29 1962-06-26 Crouse Hinds Co Plug and receptacle unit
DE1242735B (de) * 1965-04-21 1967-06-22 Marquardt J & J Durch einen Stoessel betaetigbarer elektrischer Schnappschalter
US3510613A (en) * 1967-07-10 1970-05-05 Cts Corp Snap action switch and combination switch and variable resistance control
US4154991A (en) * 1977-09-21 1979-05-15 Stewart-Warner Corporation Rotary switch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216645A2 (de) * 1985-08-21 1987-04-01 Société d'Exploitation des Procédés Maréchal S.E.P.M. (Société Anonyme) Vorrichtung zur Verhinderung der relativen Rückbewegung zweier ineinander steckbarer Teile, von denen einer manuell bedient wird
EP0216645A3 (en) * 1985-08-21 1988-03-09 Societe D'exploitation Des Procedes Marechal S.E.P.M. (Societe Anonyme) Anti-reverse device for the motion between two components, either male or female, of which one is actuated manually
US4732567A (en) * 1985-08-21 1988-03-22 Societe D'exploitation Des Procedes Marechal (Sepm), S.A. Apparatus and method for preventing reversal of the relative displacement by hand of engaged male and female components
FR2933244A1 (fr) * 2008-06-25 2010-01-01 Marechal Sepm Dispositif de connexion electrique securise
WO2010007221A1 (fr) * 2008-06-25 2010-01-21 Société d'Exploitation des Procédés Maréchal (SEPM) Dispositif de connexion electrique securise
US8221150B2 (en) 2008-06-25 2012-07-17 Societe D'exploitation Des Procedes Marechal Device for secure electrical connection

Also Published As

Publication number Publication date
IN159482B (de) 1987-05-23
DE3270885D1 (en) 1986-06-05
AU555835B2 (en) 1986-10-09
EP0106931B1 (de) 1986-04-30
AU1780183A (en) 1984-05-03
MX156351A (es) 1988-08-10
US4525610A (en) 1985-06-25
JPH0345498B2 (de) 1991-07-11
JPS5998424A (ja) 1984-06-06

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