EP0646990B1 - Perfectionnements aux dispositifs de sécurité et/ou de discrimination pour prises de courant - Google Patents

Perfectionnements aux dispositifs de sécurité et/ou de discrimination pour prises de courant Download PDF

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Publication number
EP0646990B1
EP0646990B1 EP94400437A EP94400437A EP0646990B1 EP 0646990 B1 EP0646990 B1 EP 0646990B1 EP 94400437 A EP94400437 A EP 94400437A EP 94400437 A EP94400437 A EP 94400437A EP 0646990 B1 EP0646990 B1 EP 0646990B1
Authority
EP
European Patent Office
Prior art keywords
plug
orifices
arms
female
male
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
EP94400437A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0646990A1 (fr
Inventor
Michèle Blanchot
Yves Palisson
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.)
Professional General Electronic Products PGEP SAS
Original Assignee
Professional General Electronic Products PGEP SAS
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Publication date
Application filed by Professional General Electronic Products PGEP SAS filed Critical Professional General Electronic Products PGEP SAS
Publication of EP0646990A1 publication Critical patent/EP0646990A1/fr
Application granted granted Critical
Publication of EP0646990B1 publication Critical patent/EP0646990B1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4534—Laterally sliding shutter
    • 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
    • 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
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall

Definitions

  • the present invention relates to a safety and / or discrimination device for sockets.
  • a socket outlet is constituted by a female element, called “female plug”, comprising one or more orifices provided with electrical contact means and by a male element, called “male plug”, comprising one or more pins intended to penetrate into the female plug holes.
  • female plug When the female plug is fixed to a wall or to a connecting rail, it is often called “socket”.
  • the male and female plugs comprise two current supply conductors to which it is more and more often added. a grounding conductor.
  • the earthing pin is placed on the female plug and the hole intended for it on the male plug in order to avoid any handling error.
  • a socket system comprising: on the one hand a female plug provided with a rotating cover rendering the orifices of said plug inoperative by closing them, and on the other hand a male plug comprising in addition to the two power supply pins, an additional pin provided with means making the shutter pivot to make the orifices accessible to the pins.
  • English Patent No. 612,486 describes a female plug comprising a means for closing its orifices consisting of two arms brought back to the closed position in front of the orifices by an elastic means.
  • the female plug is a base with three holes arranged at the vertices of a triangle.
  • the male plug associated with such a female plug carries three pins, one of these pins, the grounding pin, is longer than the other two.
  • This type of plug is the one usually used in the United Kingdom and corresponds to the standard in force in that country.
  • This difference in length between the earthing pin and the two pins ensuring the circulation of the electric current is used to carry out a first control of the shutter means using the earthing pin.
  • the shutter means closes the three orifices.
  • the earthing pin contacts this sealing means before the other two pins and brings it into a position allowing its complete removal under the action of said two other pins.
  • This system can only be applied to plugs formed according to this particular standard and cannot be used with plugs whose male plug does not carry a grounding pin longer than the other pins as is the case in many countries, for example France, Germany, the United States ...
  • the means rendering the orifices of the female plug inoperative are two contact latches which retract elastically out of the orifices in the inactive position and which are brought into the active position by a pusher carried by the male plug.
  • These latches are connected to the power supply while the orifices have usual means conducting the current, the said latches thus make the orifices of the socket inoperative by cutting off their supply of electric current when they are in the inactive position.
  • the advantage of such a device is that the pusher being carried by an adaptable insert on the male plug, the user could choose to install it or not.
  • a female plug having a cover disposed at a distance from its front face and crossed by orifices arranged axially aligned with those of said face front connected to the power supply conductors.
  • a rotary shutter is disposed between said cover and front face and comprises two flexible branches coming to be placed between the orifices in correspondence of the female plug, these two branches being provided with pins capable of coming to block in one of the orifices of the front face of the female plug or socket when the two branches are not actuated together by the two pins of the male plug.
  • This device corresponds well to security standards but cannot make it possible to obtain discrimination between two supply networks.
  • the present invention relates to an electrical power outlet system consisting of a male plug and a female plug or socket, in which means are provided for locking means for closing the orifices of the female plug.
  • Such a system then advantageously fulfills the desired dual function of security and discrimination.
  • the electrical power supply outlet system comprises a male plug 1 and a female plug 2 or socket.
  • the male plug carries two pins 10 intended to be positioned in the orifices 20 of the female plug to which electrical conductors, not shown, are connected.
  • the male plug may include an orifice into which a grounding pin carried by the female plug is inserted.
  • the female plug 2 is shaped so as to present a housing for a closure means 3.
  • a cover 4 is arranged at a distance from the front face 21 of the plug. This cover 4 is traversed by two orifices 40 aligned with the orifices 20 on the front face 21, this cover is also shaped so as to be traversed by the grounding pin if the latter is provided.
  • the closure means 3 is arranged between said orifices 40 of the cover 4 and 20 of the front face 21 so as to regulate the passage of the pins 10 of the male plug towards said orifices 20.
  • the shutter 3 is formed by a body 30 and two branches 31 and has a generally T shape.
  • the body 30 of said closure means has a semi-cylindrical cut 37 of shape similar to the cut 27 presented by the front face 21 for the passage of a pin earthing not shown.
  • the branches 31 have protuberances 34 arranged on one of their faces and pins 32 arranged on their other face. These protrusions 34 and pins 32 are arranged so as to be in correspondence with each other.
  • Said protuberances and pins are positioned on the branches 31 so as to be in alignment with the orifices 40 and 20 when the closure means 3 is housed between the front face 21 and the cover of the female plug 21.
  • the protuberances 34 are in look of the holes 40 of the cover 4 while the pins 32 are facing the holes 20 of the front face 21.
  • FIGS. 2 to 6 the female plug is shown with the cutaway of the cover to simplify the drawings.
  • the front face 21 of the female plug carries a rib 23 with a triangular section while the body 30 of the closure means 3 has a groove 33 also with a triangular section with an angle at the top greater than that of the rib 23.
  • the closure means 3 is pivotally mounted on the front face 21 by the positioning of the groove 33 on the rib 23.
  • the face of the closure means 3 not having the groove 33 is in the form of a dihedron which ensures said means the possibility of tilting when it is positioned in the housing formed by the front face 21 and the cover 4.
  • the closure means 3 is subjected to the action of a return means bringing it back to its position called closed for which it closes the orifices 20 of the female plug.
  • this return means is a spring 5 disposed between a cup 25 of the front face 21 and a nozzle 35 which it carries.
  • This spring 5 resiliently pushes said closure means 3 towards the position which it occupies in FIGS. 2 and 3 for which its branches 31 are in abutment against abutment faces 22 of the female plug and are arranged above the orifices 20 from the front 21.
  • the shutter means is disposed between the orifices 40 and 20 of the cover 4 and of the front face 21 of the female plug and prevents access to said orifices 20 connected to the power supply source.
  • the spring 5 can be replaced by any other type of return means.
  • magnetic means can be repulsive and arranged between the closure means 3 and the part of the female plug situated around the cup 25, or can be attractive and disposed between said closure means 3 and the abutment faces 22.
  • closure means can then be moved away from this closed position only by the action of a means carried by the male plug.
  • this means consists of the pins of the male plug.
  • the sealing means 3 is pushed back by the symmetrical and simultaneous action of the pins 10 of the male plug.
  • the protrusions 34 have an upper face inclined in the direction of the abutment faces 22, the height of said protuberances is then the smallest on the side closest to said abutment faces 22.
  • the shutter means 3 switches around the rib 23 which has the effect of positioning one of the pins 32 in an orifice 20 and preventing the withdrawal of said closure means 3 towards its open position.
  • the device described so far ensures user safety and meets the standards currently in force. According to the invention, this device is modified to also allow discrimination between electricity supply networks.
  • the invention provides a locking system comprising two arms 60 mounted for rotation on the front face 21 of the female plug. Said arms can, for this purpose, be arranged around pins 26 of the front face 21, or carry portions of axes positioned in bores of said front face.
  • Said arms 60 have ends 65 and 66 arranged, in the example shown, perpendicular to one another.
  • the ends 66 are arranged opposite the closure means 3 and have an inclined face 67 in the direction of the orifices 20 of the front face 21 so that a force exerted vertically from top to bottom on this inclined face 67 tends separating said ends 66 from said orifices 20.
  • the arms 60 At a distance from the end portions of the ends 66, the arms 60 have, on their internal side, lugs 63 perpendicular to said ends 66 arranged opposite the branches 31 of the closure means 3.
  • a return means returns said arms 60 in the direction bringing their ends 66 closer to the orifices of the front face 21.
  • this return means is elastic and is constituted by the spring 5 used to push the shutter means 3 towards its closed position.
  • the cup 25 in which one end of the spring 5 is positioned is slidably mounted on the front face 21 of the female plug and the ends 65 of the arms 60 are in abutment against the external face of the latter.
  • the return means may be a means different from the means recalling the closure means in its closed position.
  • the sliding cup 25 is replaced by a fixed cup 28 carrying on its face opposite the ends 65 of the arms a pin 29 in which a flexible blade 51 is disposed. Said flexible blade is in abutment against the ends 65 arms 60 and pushes them in the direction of locking of the locking means.
  • the pins 63 are arranged opposite the branches 31 of the shutter means preventing any movement thereof in the direction tending to discover the orifices 20.
  • the shutter means 3 is then retained between the pins 63 arms 60 of the locking system and the abutment faces 22 of the front face 21.
  • the control means 7 is, as visible in FIG. 1, constituted by a disc 70 carrying two pins 76 which are placed on the male plug so that it is interposed between said male plug and the female plug when connecting.
  • This control means can be placed on the male plug after its manufacture and fixed by any useful process, such as gluing or screwing, on the male plugs of the devices which are authorized to be connected to the female plug provided with locking means. .
  • male plugs can also be produced having said pins 76 during manufacture.
  • the pins 76 are diametrically opposite and arranged on either side of the pins 10. The distance separating said pins is equal to that separating the ends 66 of the arms 60 in their locked position.
  • the cover 4 has openings 47 for guiding said pins 76 during the approach of the male plug.
  • the invention can by form modifications be used with many forms of closure means, whether these are erased by a translational movement or by a rotational movement, by the simultaneous action of the pins of the male plug or of any other means carried by said male plug, this means being able, moreover, to be added to the unlocking control means 7 described above.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Control Of Combustion (AREA)
  • Socks And Pantyhose (AREA)
  • Push-Button Switches (AREA)
  • Cable Accessories (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Glass Compositions (AREA)
  • Saccharide Compounds (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
EP94400437A 1993-09-29 1994-03-02 Perfectionnements aux dispositifs de sécurité et/ou de discrimination pour prises de courant Expired - Lifetime EP0646990B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9311556A FR2710787B1 (fr) 1993-09-29 1993-09-29 Perfectionnements aux dispositifs de sécurité et/ou de discrimination pour prises de courant.
FR9311556 1993-09-29

Publications (2)

Publication Number Publication Date
EP0646990A1 EP0646990A1 (fr) 1995-04-05
EP0646990B1 true EP0646990B1 (fr) 1997-05-02

Family

ID=9451336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400437A Expired - Lifetime EP0646990B1 (fr) 1993-09-29 1994-03-02 Perfectionnements aux dispositifs de sécurité et/ou de discrimination pour prises de courant

Country Status (8)

Country Link
US (1) US5624270A (pl)
EP (1) EP0646990B1 (pl)
AT (1) ATE152551T1 (pl)
DE (1) DE69402934T2 (pl)
ES (1) ES2103546T3 (pl)
FI (1) FI111769B (pl)
FR (1) FR2710787B1 (pl)
PL (1) PL175821B1 (pl)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740270B1 (fr) 1995-10-24 1997-12-12 Professional General Elect Dispositif de connexion du type comportant une fiche male destinee a s'inserer dans une fiche femelle et piece intercalaire pour ce dispositif de connexion
US5702259A (en) * 1996-08-12 1997-12-30 Lee; Chiu-Shan Safety socket and plug arrangement
US5746612A (en) * 1996-11-13 1998-05-05 Chien-Yuan; Wang Adapter junction box
FR2784807B1 (fr) * 1998-10-06 2000-12-29 Legrand Sa Socle de prise de courant a obturateur de securite
DE10014500C1 (de) 2000-03-23 2001-10-04 Kid Systeme Gmbh Schutzsteckdose mit Sicherheitsvorrichtung
US6599141B2 (en) 2001-04-27 2003-07-29 General Dynamics Ots (Aerospace), Inc. Apparatus for providing AC power to airborne in-seat power systems
FR2833111B1 (fr) * 2001-12-05 2006-09-15 Legrand Sa Socle de prise de courant a obturateur d'alveoles et gamme comprenant un tel socle
US6893275B2 (en) 2003-01-29 2005-05-17 Koncept Technologies Inc. Electrical receptacle with shutter
DE102004022128A1 (de) * 2004-05-05 2005-12-01 Abb Patent Gmbh Stromzählereinrichtung
US7556513B2 (en) * 2007-02-12 2009-07-07 Koncept Technologies Inc. Compact shutter assembly for receptacle
DE102008063110A1 (de) * 2008-12-24 2010-07-01 Merten Gmbh & Co. Kg Verschlusssystem für eine Steckdose
JP5155458B2 (ja) * 2009-01-02 2013-03-06 ホンス シン 安全コンセント
TWI398049B (zh) * 2009-11-20 2013-06-01 Xyz Science Co Ltd Electrical connectors with multiple safety structures
TWI564697B (zh) * 2015-11-05 2017-01-01 鴻海精密工業股份有限公司 電源適配器
CN107452527A (zh) * 2017-03-31 2017-12-08 广州市双聚节能科技有限公司 一种板材切割用稳定启动装置
US9948020B1 (en) * 2017-07-12 2018-04-17 Chia-Hua Lin Lid-equipped power socket structure
CN110289514A (zh) * 2019-06-27 2019-09-27 合肥羿振电力设备有限公司 一种高防护性能的ac电源接口
CN110212360B (zh) * 2019-06-27 2020-10-13 合肥芮欣电子商务有限公司 一种安全插头及插座

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534702A (en) * 1939-09-14 1941-03-14 Ward Goldstone Ltd Improvements in or relating to electric plug and socket connectors
GB612486A (en) * 1946-05-25 1948-11-12 Crabtree & Co Ltd J A Improvements in shielded electric sockets
GB682727A (en) * 1950-08-29 1952-11-12 Crabtree & Co Ltd J A Improvements in shuttered electric sockets
US2740943A (en) * 1952-10-16 1956-04-03 Young Sidney Geoffrey Electrical socket having a movable shutter to cover its contact openings
GB763001A (en) * 1954-04-09 1956-12-05 Parsons C H Ltd Improvements relating to socket units of electric plug-and-socket connectors
CH514241A (it) * 1970-03-24 1971-10-15 Bassani Spa Presa elettrica di sicurezza
NL7301832A (pl) * 1972-12-04 1974-06-06
FR2271680A1 (en) * 1974-05-14 1975-12-12 Couqueberg Michel Plug and socket with safety shutter - has guide slot in plug earth pin rotating shutter to align pin access holes
US4494809A (en) * 1983-02-15 1985-01-22 Leonard Soloman Security attachment for electrical plug
FR2584873B1 (fr) * 1985-07-11 1990-03-23 Arnould App Electr Systeme de raccordement electrique pour un reseau specifique de distribution de courant, et adaptateur pour fiche de raccordement electrique et socle de prise de courant correspondants
US4640564A (en) * 1986-03-04 1987-02-03 Hill Joe W Electrical outlet faceplate with locking closures
GB2260863B (en) * 1991-10-23 1995-06-21 Mk Electric Ltd An electrical socket
GB9122515D0 (en) * 1991-10-23 1991-12-04 Mk Electric Ltd An electrical socket
DE9211368U1 (de) * 1992-08-27 1992-11-05 Deutsche Electraplan GmbH, 2000 Schenefeld Schutzkontaktsteckkupplung
US5281156A (en) * 1993-02-18 1994-01-25 Yi Lee M Safety electrical receptacle

Also Published As

Publication number Publication date
FR2710787B1 (fr) 1995-12-08
FR2710787A1 (fr) 1995-04-07
FI944497A (fi) 1995-03-30
ES2103546T3 (es) 1997-09-16
US5624270A (en) 1997-04-29
DE69402934D1 (de) 1997-06-05
DE69402934T2 (de) 1997-11-20
PL305239A1 (en) 1995-04-03
PL175821B1 (pl) 1999-02-26
ATE152551T1 (de) 1997-05-15
FI111769B (fi) 2003-09-15
EP0646990A1 (fr) 1995-04-05
FI944497A0 (fi) 1994-09-28

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