EP3276758A1 - Industrial plug with phase inverter device - Google Patents

Industrial plug with phase inverter device Download PDF

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Publication number
EP3276758A1
EP3276758A1 EP17001231.4A EP17001231A EP3276758A1 EP 3276758 A1 EP3276758 A1 EP 3276758A1 EP 17001231 A EP17001231 A EP 17001231A EP 3276758 A1 EP3276758 A1 EP 3276758A1
Authority
EP
European Patent Office
Prior art keywords
rotor
industrial plug
pins
plug according
locking
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Withdrawn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
EP17001231.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3276758A8 (en
Inventor
Domenico BISATELLI
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.)
Gewiss SpA
Original Assignee
Gewiss SpA
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 Gewiss SpA filed Critical Gewiss SpA
Publication of EP3276758A1 publication Critical patent/EP3276758A1/en
Publication of EP3276758A8 publication Critical patent/EP3276758A8/en
Withdrawn legal-status Critical Current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
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/86—Parallel contacts arranged about a common axis

Definitions

  • the present invention relates to an industrial plug with phase inverter device.
  • An industrial electric plug includes a series of pins arranged inside a container which, in combination with the similar container of the associated outlet, is designed to protect them from any possible infiltration of water.
  • the present invention relates in particular to industrial plugs adapted to power three-phase devices and in particular three-phase motors.
  • Three-phase motors often move systems the operation of which depends on the direction of rotation of the motor.
  • the wiring sequence of the phases of the motor determines this direction of rotation.
  • Devices for providing phase reversal which are constituted by an adapter meant to be connected to the power supply plug of the three-phase motor.
  • Phase inverter devices are also known which are constituted by a rotating member which supports two pins, the position of which can be reversed by rotating the rotating member.
  • Figures 2 and 3 are views of a four-contact pin, of a known type, which is provided with a phase inverter of the type described above.
  • Figures 4 and 5 are views of a five-contact pin, of a known type, which is provided with a phase inverter of the type described above.
  • Figure 4 shows a correct position of the movable pins
  • Figure 5 shows an incorrect position of the pins, caused by an insufficient rotation of the rotating member.
  • DE4431451 discloses an electrical multi-phase plug with terminal pins mounted on a circular base plate.
  • the plug has a phase inverter for exchanging two plug pins so that the order of the phases can be reversed.
  • the phase reverser is locked by means radial lugs engaging cutouts.
  • EP0841726 discloses a connector having a pair of phase reversal pins supported by a rotatable insert incorporated in the foot, allowing the position of the phase pins relative to the base pins to be reversed by rotation through 180 degrees.
  • the position of the rotatable insert relative to the foot is secured by a spring arm in two defined angular positions, by cooperation of locking noses with locking openings provided in the foot.
  • AT410269 discloses a multipolar plug device having a phase-reversing socket with contact pins rotatably mounted on the plug base.
  • the socket is locked by means of a latching cam.
  • DE4431451 , EP0841726 and AT410269 show devices for locking the rotating member constituting the phase inverter into a set position, however the devices are arranged inside the plug body and they are not visible from the outside.
  • the aim of the present invention is to provide an industrial plug with phase inverter device that overcomes the drawbacks of the cited background art.
  • a particular object of the invention is to provide an industrial plug which incorporates a phase inverter device that highlights uniquely and objectively the reaching of the correct position on the part of the pins once they have been reversed.
  • Another object of the invention is to provide an industrial plug with a phase inverter device provided with visible locking members.
  • a further object of the present invention is to provide a plug that can be easily and economically manufactured.
  • an industrial plug with phase inverter device comprising a core inserted in a casing and supporting a plurality of pins; a rotor mounted on said core and supporting at least two movable pins; said rotor being arrangeable in two preset positions: an initial position and a final position; said initial and final positions corresponding to a rotation through 180° of said rotor so that the position of said movable pins is reversed; said plug being characterized in that it comprises a means for highlighting the reaching of one of said preset positions of said rotor and of said movable pins.
  • the industrial plug with phase inverter device has a core 1 that is inserted in a casing 11 and supports a plurality of pins, designated by the reference numerals 2 and 4.
  • the pins include fixed pins 4, which are mounted in a fixed position on the core 1, and two movable pins 2, which are mounted on a movable member 3 that is adapted to allow to reverse the position of the movable pins 2 with respect to each other.
  • the movable member is constituted by a rotor 3 which is mounted in a sandwich-like arrangement in the core 1 in which the remaining fixed pins 4 are inserted in fixed positions.
  • the rotor 3 can rotate freely through 180° about its own axis between two preset positions: an initial position and a final position, which are determined by stop members 5 and 51 which are formed on the inner side of the core 1.
  • the initial and final positions of the rotor 3 are the only two positions in which the pins 2 can be arranged in order to ensure the correct operation of the plug.
  • the initial and final positions correspond to a rotation through 180° of the rotor 3 so that the position of the movable pins is reversed.
  • a locking slider 6 which is mounted within the rotor 3 and can slide freely along a diametrical axis of the rotor 3.
  • the correct position of the locking slider 6 is ensured by a compression spring 7, which is coaxial to the axis of the rotor 3.
  • Locking in the two preset positions is ensured by two locking teeth 8, which engage adapted seats 9 which are provided partly on the rotor 3 and partly on the core 1.
  • the locking teeth 8 and the locking slider 6 are of a different color with respect to the other parts of the rotor, so that they are clearly visible, as described further on.
  • the locking teeth 8 are in fact completely visible by the operator only and exclusively when the rotor 3, and therefore the pins 2, are in one of the two preset initial or final positions, thus indicating to the operator the correctness of the phase reversal maneuver.
  • the release of the system for rotating through 180° the pins 2 is performed by the operator by acting by means of a screwdriver engaging an adapted notch 10 formed in the locking slider 6, with which it pushes along its own axis the locking slider 6 itself, loading the compression spring 7, and rotates the rotor 3 through 180° from the initial position to the final position or vice versa.
  • the core 1 complete with the rotor 3 is advantageously mounted in a snap manner in the plug casing 11.
  • an industrial plug with a phase inverter device being provided which is constituted by a rotating element that allows to reverse the position of two pins, giving assurance to the operator that the maneuver has been performed correctly by virtue of visual and acoustic means.
  • the device is provided with retention members which allow to position the rotor in two preset positions in which the pins are positioned correctly and safely.
  • the materials used, as well as the dimensions, may of course be any according to the requirements and the state of the art.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Inverter Devices (AREA)
EP17001231.4A 2016-07-27 2017-07-19 Industrial plug with phase inverter device Withdrawn EP3276758A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000079051A IT201600079051A1 (it) 2016-07-27 2016-07-27 Spina industriale con dispositivo invertitore di fase

Publications (2)

Publication Number Publication Date
EP3276758A1 true EP3276758A1 (en) 2018-01-31
EP3276758A8 EP3276758A8 (en) 2018-04-04

Family

ID=57610192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17001231.4A Withdrawn EP3276758A1 (en) 2016-07-27 2017-07-19 Industrial plug with phase inverter device

Country Status (3)

Country Link
EP (1) EP3276758A1 (zh)
CN (1) CN107666098B (zh)
IT (1) IT201600079051A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220396162A1 (en) * 2021-06-10 2022-12-15 Te Connectivity Germany Gmbh Adapter System for Electrical Connection of a Connector of a Cabling to Different Contact Arrangements of Different Charging Sockets

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431451A1 (de) 1994-09-03 1996-03-07 Mueller Plastik Gmbh Elektrischer Mehrphasenstecker
EP0841726A2 (de) 1996-11-07 1998-05-13 Aloys Mennekes Anlagengesellschaft mbH & Co. KG Mehrpolige Steckverbindung
AT410269B (de) 2001-02-13 2003-03-25 Pc Electric Gmbh Mehrpolige steckvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382041A (fr) * 1964-02-12 1964-12-14 Ind Aktiebolaget Elektro Varia Fiche de prise de courant à inverseur de phase incorporé
CN1218444C (zh) * 2000-06-08 2005-09-07 行田电线株式会社 插头
NZ555628A (en) * 2006-05-11 2008-12-24 Abl Sursum Bayerische Elektroz Low profile caravan electrical connector with rotatable coupling
CN102820557A (zh) * 2012-09-04 2012-12-12 乐清市恒通电气有限公司 工业插头插座

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431451A1 (de) 1994-09-03 1996-03-07 Mueller Plastik Gmbh Elektrischer Mehrphasenstecker
EP0841726A2 (de) 1996-11-07 1998-05-13 Aloys Mennekes Anlagengesellschaft mbH & Co. KG Mehrpolige Steckverbindung
AT410269B (de) 2001-02-13 2003-03-25 Pc Electric Gmbh Mehrpolige steckvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220396162A1 (en) * 2021-06-10 2022-12-15 Te Connectivity Germany Gmbh Adapter System for Electrical Connection of a Connector of a Cabling to Different Contact Arrangements of Different Charging Sockets

Also Published As

Publication number Publication date
CN107666098B (zh) 2021-05-18
IT201600079051A1 (it) 2018-01-27
CN107666098A (zh) 2018-02-06
EP3276758A8 (en) 2018-04-04

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