EP1310021B1 - Explosionsgeschützte leuchte und steckverbindung - Google Patents

Explosionsgeschützte leuchte und steckverbindung Download PDF

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Publication number
EP1310021B1
EP1310021B1 EP01971815A EP01971815A EP1310021B1 EP 1310021 B1 EP1310021 B1 EP 1310021B1 EP 01971815 A EP01971815 A EP 01971815A EP 01971815 A EP01971815 A EP 01971815A EP 1310021 B1 EP1310021 B1 EP 1310021B1
Authority
EP
European Patent Office
Prior art keywords
plug
explosion
locking
cover
protected
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
EP01971815A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1310021A1 (de
Inventor
Gerhard Schwarz
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.)
Cooper Crouse Hinds GmbH
Original Assignee
Cooper Crouse Hinds GmbH
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 Cooper Crouse Hinds GmbH filed Critical Cooper Crouse Hinds GmbH
Publication of EP1310021A1 publication Critical patent/EP1310021A1/de
Application granted granted Critical
Publication of EP1310021B1 publication Critical patent/EP1310021B1/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
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to an explosion-proof lamp with a lamp housing and an attachable thereto by means of at least one socket and electrically powered bulb, which socket is connectable via at least one terminal to a supply line and which lamp housing can be closed by a translucent cover and only in the tension-free state ,
  • a switching device is usually located within the lamp, which ensures that the lamp is disconnected from the voltage when the cover is released.
  • a switching device is designed for example as a so-called forced disconnector.
  • To supply the lamp in the luminaire housing usually Kaussein- or - prepareren are formed, through which a corresponding supply line can be laid to the inside of the lamp housing. There, the supply line is connected to corresponding terminals. This is connected to a socket of a light bulb.
  • the invention is therefore an object of the invention to improve a luminaire of the type mentioned in that simple and inexpensive voltage isolation of the lamp or the lamp can be done altogether while protecting against contact with live parts of the lamp and taking into account the requirements for explosion-proof Lights are secured.
  • Plug and socket are designed in particular explosion-proof to comply with the appropriate safety regulations when plugging or loosening the plug. Further restrictions on the plug and socket are not available, so that in principle all usable for explosion-proof areas plug and sockets are essentially used.
  • the locking of the cover in its closed position can be done in many ways.
  • the lock is designed so that it is released only after loosening the connection between the plug and socket and the cover to open or remove is.
  • An example of such a lock is an electrical or electromagnetic lock that is only turned on when the light is applied to the light via the plug. As soon as the luminaire is de-energized, the lock is released.
  • the socket can be designed so that it has an insertion opening for the plug. Furthermore, there is the possibility that the plug has a sleeve surrounding the corresponding plug contacts, which can be pushed onto the socket from the outside.
  • Plug and socket can be designed with different cross sections. In this case, the cross-section can be used for coding of plugs and sockets, so that, for example, only supply lines with appropriate voltage or corresponding circuits with the corresponding lamp can be connected.
  • the socket may have a locking device for the plugged plug.
  • a locking device may be formed, for example, as a bayonet lock or the like.
  • the lamp housing can be formed without receiving means for terminals or the like, for example in the cover.
  • Fastening means can be integrally formed directly on the lamp housing and, for example, locking recesses, locking projections, Einraststege, insertion projections or the like.
  • the lamp can be releasably secured there by corresponding latching of the fastening means arranged on ceiling, wall or mast counter-locking elements. Subsequently, the attachment of the plug to the socket and at the same time the locking of the cover takes place.
  • the cover may have a locking device which engages with the inserted part of the plug connection, for example the plug. That is, by mating the connector, the lock is made, for example, the connector when approaching or starting plugging into the socket actuates a corresponding locking element which locks the cover in its closed position.
  • this can have at least one insertion opening into which a corresponding locking element of the plug can be inserted.
  • the plugged into the insertion of the cover locking element of the plug then prevents the cover is movable relative to the plug and correspondingly detachable from the lamp housing.
  • an insertion depth of the insertion can be greater than a corresponding insertion depth of the connector.
  • the invention also relates to the part of the plug connection (plug element, plug) which is arranged at the end of the supply line for connection to an explosion-proof lamp of the type described above.
  • This part can be plugged into the counter element (socket) of the lamp, wherein at the same time or in anticipation the locking element is inserted into the corresponding insertion opening in the cover.
  • a reverse arrangement of locking and insertion is possible.
  • the locking element is designed to be complementary to the insertion opening.
  • the locking element may be a locking pin.
  • the locking element can be spaced and arranged parallel to the plug at this.
  • the locking element may be fastened by a connecting web on the plug-in element. This extends, for example, radially outward relative to the plug element and at its outer end of the locking pin is arranged.
  • the locking element may protrude over a free end of the arranged on the supply line connector part. As a result, even when approaching the arranged on the lamp counter element or at the beginning of insertion the locking element is already inserted into the insertion and thus ensures the locking of the cover in its closed position.
  • Fig. 1 is a partially sectioned side view of a lamp 1 according to the invention.
  • This has a generally trough-shaped light housing 2, which is fastened, for example, to a ceiling, a wall, a mast or the like.
  • a ballast 23 (if necessary), terminals 5 and electrical connection lines 12 are arranged.
  • a luminous means may be, for example, a fluorescent lamp, an incandescent lamp, a metal vapor high pressure lamp, a high pressure mercury vapor lamp, a high pressure sodium vapor lamp or the like.
  • the sockets are formed corresponding to the used light source 4.
  • a plug connection part 8 is arranged in the illustrated embodiment of FIG. 1, which passes through a wall of the lamp housing 2. This connector part 8 is within the lamp housing. 2 Connected via electrical connection lines 12 directly to the ballast 23, which in turn is connected to the sockets 3 for the electrical supply of the lamp 4.
  • fastening means 13 are formed on an outer side of the lamp housing 2 . These may be formed, for example, as latching depressions, Rastvorsprtinge, Einsteckschienen or the like.
  • the fastening means are used for releasable and positive fastening of the lamp housing 2 and thus the lamp 1 to wall, ceiling or mast.
  • a corresponding adapter for the fastening means 13 can be previously attached to the wall, ceiling or mast.
  • An opening of the lamp housing 2 is covered by a translucent cover 7, resulting in a total of an explosion-proof lamp.
  • the cover can be fastened to the luminaire housing, for example, by means of a corresponding closure mechanism.
  • the lighting means 4 is shown, wherein the cover 7 is arranged in Fig. 1 in its closed position 10.
  • a locking device 14 is provided in the cover 7, which has an insertion opening 15.
  • a projection or the like may be integrally formed on the cover, which ensures the locking together with a recess or the like on the connector part.
  • a corresponding locking pin 20 can be inserted as a locking element 19 into this cover.
  • the locking element 19 is arranged on a plug 9, which is arranged at one end 18 of a supply line 6 and connectable to the socket 8 for supplying power to the lamp 1.
  • the locking pin 20 is arranged parallel to and spaced from the plug 9, wherein it is attached via a connecting web 21 on an outer side of the plug. In this case, locking pin 20 can be rotatably mounted with connecting web 21 on the plug 9.
  • the locking pin 20 is above a free end 22 of the movable part (plug) 9 and the insertion opening 15 is formed with a greater insertion depth 16 than the insertion depth 17 of the fixed part (socket) 8.
  • the electrical connection between the socket and plug is only made when the locking pin 20 is almost completely inserted into the insertion opening 15.
  • the invention thus results in a simple to produce and quickly detachable electrical connection that meets all the requirements of explosion protection. Simultaneously with the connection of the plug and socket, the locking of the cover is ensured.
  • the interior of the luminaire can be made simpler in accordance with the invention, since there is no need for special covers for parts still supplied with voltage inside the lamp.
  • the entire luminaire is always disconnected from the voltage in a simple manner, and not only the luminous means. Furthermore, the effort in the electrical connection of the lamp and also when attaching the lamp at the site is reduced. As a result, the lights are cheaper and easier to handle.
  • plug movable connector
  • socket fixed connector

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Connecting Device With Holders (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Cable Accessories (AREA)
EP01971815A 2000-08-17 2001-07-30 Explosionsgeschützte leuchte und steckverbindung Expired - Lifetime EP1310021B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20014168U DE20014168U1 (de) 2000-08-17 2000-08-17 Explosionsgeschützte Leuchte und Steckverbindung
DE20014168U 2000-08-17
PCT/EP2001/008798 WO2002015348A1 (de) 2000-08-17 2001-07-30 Explosionsgeschützte leuchte und steckverbindung

Publications (2)

Publication Number Publication Date
EP1310021A1 EP1310021A1 (de) 2003-05-14
EP1310021B1 true EP1310021B1 (de) 2006-08-23

Family

ID=7945269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01971815A Expired - Lifetime EP1310021B1 (de) 2000-08-17 2001-07-30 Explosionsgeschützte leuchte und steckverbindung

Country Status (5)

Country Link
EP (1) EP1310021B1 (no)
AT (1) ATE337634T1 (no)
DE (2) DE20014168U1 (no)
NO (1) NO324221B1 (no)
WO (1) WO2002015348A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004045455A1 (de) * 2004-09-20 2006-04-06 BöSha GmbH + Co KG Explosionsgeschützte elektrische Betriebmittel, insbesondere Leuchten und Verteilerkästen, in überwachten Stromkreisen mit Steckverbindungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435744A (en) * 1981-08-10 1984-03-06 Pauluhn Electric Manufacturing Co., Inc. Explosion-proof fluorescent light fixture
DE3818857A1 (de) * 1988-06-03 1989-12-07 Ceag Licht & Strom Explosionsgeschuetzte fassung fuer zweistift-leuchtstofflampen
DE3911900A1 (de) * 1989-04-12 1990-10-18 Stahl R Schaltgeraete Gmbh Explosionsgeschuetzte leuchte
US5381321A (en) * 1992-06-02 1995-01-10 Service Machine Co. Luminaire for hazardous atmospheres and explosion proof enclosure for power supply therefor

Also Published As

Publication number Publication date
NO324221B1 (no) 2007-09-10
DE50110817D1 (de) 2006-10-05
NO20030712D0 (no) 2003-02-14
DE20014168U1 (de) 2001-12-20
ATE337634T1 (de) 2006-09-15
WO2002015348A1 (de) 2002-02-21
EP1310021A1 (de) 2003-05-14
NO20030712L (no) 2003-04-11

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