EP0905820A1 - Installationsgerät zur Verwendung in einer Umgebung mit einem Explosionsrisiko - Google Patents

Installationsgerät zur Verwendung in einer Umgebung mit einem Explosionsrisiko Download PDF

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Publication number
EP0905820A1
EP0905820A1 EP98810789A EP98810789A EP0905820A1 EP 0905820 A1 EP0905820 A1 EP 0905820A1 EP 98810789 A EP98810789 A EP 98810789A EP 98810789 A EP98810789 A EP 98810789A EP 0905820 A1 EP0905820 A1 EP 0905820A1
Authority
EP
European Patent Office
Prior art keywords
housing
connection
installation
inert
pluggable
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
EP98810789A
Other languages
English (en)
French (fr)
Other versions
EP0905820B1 (de
Inventor
Raphael Prina
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.)
Parker Hannifin Manufacturing Switzerland SA
Original Assignee
Parker Lucifer 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 Parker Lucifer SA filed Critical Parker Lucifer SA
Publication of EP0905820A1 publication Critical patent/EP0905820A1/de
Application granted granted Critical
Publication of EP0905820B1 publication Critical patent/EP0905820B1/de
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
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the present invention relates to an installation electric designed to work in an environment presenting a risk of explosion caused by an arc electric, comprising at least one electric element or plug-in inert electronics for its connection galvanic to the rest of the installation, this element inert with a cylindrical or prismatic body and being provided with plug-in connection members in connection members of the installation.
  • the present invention aims to allow the replacement of an inert plug-in component, such as than a coil or sensor, without the need to interrupt the power supply to the installation.
  • the electrical installation according to the invention is characterized in that with the exception of the pluggable inert element it is contained in a case filled with an inert gas maintained at a pressure higher than the surrounding atmospheric pressure, that the live connection devices are located at the bottom of a cylindrical housing, respectively prismatic communicating with the inside of the case and in which the body of the inert element is engaged pluggable, the section of said housing corresponding to the body section of the plug-in inert element with a clearance corresponding to the IP 40 standard and in that the depth of this housing is greater than the length of the mutual commitment of the connection bodies increased by the maximum length of the electric arc forming between these organs during their separation.
  • Said housing is formed, for example, in a block insulation fitted with a gasket ensuring waterproof communication between the interior of the installation and said housing.
  • the insulating block carries the connection members remaining energized.
  • the accommodation communicating with the interior of the installation is filled with pressurized inert gas which flows through the IP 40 clearance between the housing wall and the body of the plug-in element. This body never leaves the housing only after disappearance of the electric arc which is formed between the connecting members.
  • the drawing shows the end of a case 1 in material insulator constituting, in the particular case, one of the components of a solenoid valve battery, this element being provided with transverse passages connected to the passages of a neighboring component in a sealed manner, the sealing being provided by seals such that the trim 2.
  • the housing 1 has an opening in which is fitted a block 3 of insulating material fitted with a seal 4 ensuring the sealing of the front joint plane between block 3 and the housing 1.
  • the part of the block 3 penetrating at the interior of the housing 1 carries connection members 5, in the particular case of clamp contacts, held by a contact carrier 6 fixed to block 3 by a screw 7.
  • the connection members 5 are connected to the components contained in the housing 1.
  • Block 3 has passages 8 and 9 for the terminals 10 and 11 of an inert plug-in component 12, for example example a solenoid valve coil, having a shape cylindrical exterior on at least part of its height of the side of the terminals 10 and 11.
  • the body 3 presents, in the extension of passages 8 and 9, a cylindrical housing 13 of section substantially equal to the section of the body of the plug-in element 12, so that the clearance e between the cylindrical wall of the housing 13 and the plug-in element 12 corresponds to the IP 40 standard, that is to say is less than 1 mm.
  • plug-in element 12 does not come out of housing 13 before the disappearance of the electric arc between the connecting members. Conversely, the element plug-in 12 is engaged in the housing 13 before that an electric arc can produce.
  • the body 3 is preferably made of molded plastic, by example of PA 6.6 loaded with 30% fiberglass.
  • the live electronics are inside the case 1 and, for example, a bus, a microprocessor, etc.
  • the housing 1 In the housing 1 is continuously introduced air under pressure so that the pressure at the interior of the housing 1 is constantly greater than surrounding pressure.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Magnetically Actuated Valves (AREA)
EP19980810789 1997-09-25 1998-08-18 Installationsgerät zur Verwendung in einer Umgebung mit einem Explosionsrisiko Expired - Lifetime EP0905820B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2265/97 1997-09-25
CH02265/97A CH691645A5 (fr) 1997-09-25 1997-09-25 Installation électrique destinée à travailler dans un environnement présentant un risque d'explosion.

Publications (2)

Publication Number Publication Date
EP0905820A1 true EP0905820A1 (de) 1999-03-31
EP0905820B1 EP0905820B1 (de) 2006-03-22

Family

ID=4229732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980810789 Expired - Lifetime EP0905820B1 (de) 1997-09-25 1998-08-18 Installationsgerät zur Verwendung in einer Umgebung mit einem Explosionsrisiko

Country Status (4)

Country Link
EP (1) EP0905820B1 (de)
CH (1) CH691645A5 (de)
DE (1) DE69833931T2 (de)
DK (1) DK0905820T3 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659250A (en) * 1970-10-14 1972-04-25 Robert F Horton Electrical connector
US4166664A (en) * 1975-01-24 1979-09-04 Amp Incorporated High voltage quick disconnect electrical connector assembly
US4192572A (en) * 1973-10-15 1980-03-11 Amerace Corporation Electrical connector apparatus
GB2152302A (en) * 1983-12-20 1985-07-31 Biw Cables Inc Explosion proof electrical connector system with quick power disconnect

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659250A (en) * 1970-10-14 1972-04-25 Robert F Horton Electrical connector
US4192572A (en) * 1973-10-15 1980-03-11 Amerace Corporation Electrical connector apparatus
US4166664A (en) * 1975-01-24 1979-09-04 Amp Incorporated High voltage quick disconnect electrical connector assembly
GB2152302A (en) * 1983-12-20 1985-07-31 Biw Cables Inc Explosion proof electrical connector system with quick power disconnect

Also Published As

Publication number Publication date
EP0905820B1 (de) 2006-03-22
DK0905820T3 (da) 2006-07-31
DE69833931D1 (de) 2006-05-11
CH691645A5 (fr) 2001-08-31
DE69833931T2 (de) 2006-12-14

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