EP0314031A2 - Armature d'éclairage avec couvercle transparent et corps de lampe relié au couvercle - Google Patents

Armature d'éclairage avec couvercle transparent et corps de lampe relié au couvercle Download PDF

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Publication number
EP0314031A2
EP0314031A2 EP88117641A EP88117641A EP0314031A2 EP 0314031 A2 EP0314031 A2 EP 0314031A2 EP 88117641 A EP88117641 A EP 88117641A EP 88117641 A EP88117641 A EP 88117641A EP 0314031 A2 EP0314031 A2 EP 0314031A2
Authority
EP
European Patent Office
Prior art keywords
cover
intermediate plate
plate
trough
luminaire according
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
EP88117641A
Other languages
German (de)
English (en)
Other versions
EP0314031A3 (en
EP0314031B1 (fr
Inventor
Reinhard Neumann
Cornelius Ploeger
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.)
ABB Ceag Licht und Stromversorgungstechnik GmbH
CEAG Licht und Stromversorgungstechnik GmbH
Original Assignee
ABB Ceag Licht und Stromversorgungstechnik GmbH
CEAG Licht und Stromversorgungstechnik 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 ABB Ceag Licht und Stromversorgungstechnik GmbH, CEAG Licht und Stromversorgungstechnik GmbH filed Critical ABB Ceag Licht und Stromversorgungstechnik GmbH
Publication of EP0314031A2 publication Critical patent/EP0314031A2/fr
Publication of EP0314031A3 publication Critical patent/EP0314031A3/de
Application granted granted Critical
Publication of EP0314031B1 publication Critical patent/EP0314031B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements

Definitions

  • the invention relates to a luminaire, in particular an explosion-protected emergency luminaire, with a transparent cover trough and an associated luminaire base, in which connection elements and a power supply unit with batteries are accommodated.
  • the invention relates to an explosion-proof emergency luminaire which is to be equipped with low-energy light sources with high luminous efficacy.
  • Explosion-proof emergency lights have so far only been equipped with uneconomical light sources, in particular incandescent lamps, the emergency light being manufactured as a metal-glass light. Some of these metal and glass lights are still manufactured today. Out
  • the base body of the lamp is made of metal, in which the individual components and possibly also batteries required for the power supply of the light bulbs are accommodated. are;
  • the cover troughs made of glass are fastened to these metal base bodies and are protected against breakage by suitable wire or metal grid arrangements.
  • These known luminaires are problematic for many areas of use and, due to the metallic base body, which usually consists of steel or cast iron, are also very susceptible to corrosion, especially when luminaires of this type are used in certain corrosive atmospheres.
  • the object of the invention is to provide a lamp of the type mentioned, in which the corrosion problems are reduced and which can also be equipped with light sources with high luminous efficacy.
  • a particularly advantageous embodiment of the invention can be such that the flange made of metal and the internal thread section are formed on a metal ring embedded in the intermediate plate and firmly connected to it.
  • a circumferential, radially outwardly projecting strip can be formed on the free edge of the cover trough, which is cast in by an undercut on the flange and a retaining ring with the interposition of a seal.
  • a major advantage of the invention is that, due to the special design, the cover trough made of thermoplastic material, such as polycarbonate and the like, and the intermediate plate, which forms a pressure-resistant housing together with the cover trough, are also made of a plastic, here made of thermoset can. This is made possible by the fact that the intermediate plate carries the internal thread area which is attached to a metal ring inserted into the intermediate plate.
  • the internal thread and the external thread are adapted to one another in such a way that, in the fully screwed-in state, there is a sufficient air gap and a sufficient gap length between them, so that protection against ignition failure is ensured, as a result of which the lamp as a whole is designed to be explosion-proof.
  • the intermediate plate and the cover trough are of course dimensioned so that they meet the requirements for flameproof encapsulation.
  • connection of the flange, on which the external thread is arranged or formed, with the cover trough takes place according to the invention in such a way that mechanical stresses, which can possibly lead to stress corrosion, are prevented, so that the service life of the unit of cover trough and intermediate plate is sufficiently long for usual operating times and operating conditions.
  • the intermediate plate which has the plate-like section and the cylindrical edge attached to it, carries the internal thread section at its edge, in which the metal ring is inserted, preferably cast in and molded, on the inner surface of the cylindrical edge.
  • This intermediate plate with the edge causes a great variability of the lamp according to the invention insofar as the height of the edge can be varied in accordance with the fluorescent lamp used in the lamp.
  • two intermediate plates with two edges of different lengths are produced; the one intermediate plate with a short edge can cooperate with all cover troughs, the length of the fluorescent lamp having to be adapted to the length of the cover trough.
  • the intermediate plate with the higher edge can be used, this higher edge being adapted to the length of the ballast or the supply elements of the compact lamp so that in each If the compact lamp is in the area of the transparent cover trough. If a cover trough with a uniform length is used, different intermediate plates can be used, whereby the cover trough - intermediate plate unit with only a few individual parts is used and used for a wide variety of applications.
  • a further embodiment of the invention can be that a housing box is attached to the side of the intermediate plate opposite the cover trough, the interior of which is designed to be more secure in accordance with the regulations.
  • a sand-encapsulated receiving space for batteries can be provided in the interior of the housing box.
  • the unit consisting of the intermediate plate and cover trough is thus supplemented by the box in which the supply devices such as connecting terminals and the like and the battery pack are inserted.
  • This box which can be connected to the intermediate plate in a sealed manner, is then designed with so-called increased security and a wide variety of junction boxes can be provided, depending on the need and the fluorescent lamp used.
  • a further embodiment of the invention can be such that on the side of the intermediate plate facing the cover trough a support plate is fastened which extends through the interior of the cover trough, on the upper side of which the fluorescent lamp and on the lower side of which a ballast is fastened.
  • a pin is provided in the region of the bottom of the cover trough, on which the support plate is mounted so that it is around this pin and can rotate within the thread.
  • a circular-cylindrical switching web can also be provided on the cover trough, the free edge of which interacts with the actuating plunger of a switch fastened to the support plate, which lies in the supply line from the mains to the fluorescent lamp, so that the switch is opened when the intermediate plate is unscrewed.
  • a further embodiment of the invention can be such that a switch is provided in the area of the receiving space for the batteries, which switch can be actuated by means of a cover which closes the housing box, in such a way that the switch is switched off when the cover is removed, so that the lamp is switched off .
  • a further embodiment of the invention can go that a piston with a compression spring is provided in the intermediate plate, the piston rod of which cooperates with an electrical switch located in the housing box, that a screw is provided on the flange, which plunges the piston together with the piston rod in the direction of switching on the Switch is displaceable, and that cooperates with the piston a spring that presses the piston rod against the free end face of the screw, such that when unscrewing the screw, the spring pushes the piston with the piston rod away from the switch, whereby the switch is turned off.
  • This also causes an additional activation of the lamp, so that when the lamp is open there are no voltages anywhere that can lead to dangerous ignition sparks.
  • This unit consisting of the intermediate plate and cover trough can then be supplemented by a box in which supply devices such as connecting terminals and the like and a battery set are used.
  • This box which is connected to the intermediate plate in a sealed manner, is then designed with a so-called increased security. You can then provide a wide variety of junction boxes, according to the need and according to the fluorescent lamp used.
  • the fluorescent lamp according to the invention can also be used in a surrounding housing which has a transparent front, which may carry pictograms.
  • the lamp according to FIG. 1 has a transparent cover trough 10 closed on one side, which is made of polycarbonate, that is to say a thermoplastic, and one elongated cylindrical cross section.
  • the free end of the cover trough 10 has a radially outwardly projecting strip 11 which engages in an undercut 12 of a flange 13 which is pushed over the cover trough 10 similarly to a union nut.
  • the area between the undercut and the strip 11 is poured out with a sealing compound 14, preferably cast resin, with a securing snap ring 15 being inserted in the inner surface of the undercut 12 to secure the cast resin block 14.
  • a support plate 24 is fastened by means of screws 25, which extends through the entire cover trough 10 and has an offset 26 at its inner end, which in a switching web 27 for actuating a switch 28 which switches the Connection between network and a fluorescent lamp 30, s. below, produces, is guided on the bottom side 29 of the cover trough 10; the switching web 27 is cylindrical and projects from the bottom region 29 of the cover trough 10 to the free edge thereof. Slides on the free edge of the switching bridge Tappet of the switch 28 attached to the support plate 24 via a U-shaped holding part 24 a.
  • the support plate 24 rotates relative to the switching web 27 and is guided there, whereby at Unscrewing the switch away from the switching bridge 27 and thereby turning off and vice versa.
  • a fluorescent lamp 30 On one side of the carrier plate 24 there is a fluorescent lamp 30 and on the other side of the carrier plate there is a ballast 31, which can be, for example, an electronic ballast.
  • Feedthroughs 32 are passed through the intermediate plate 19 in a pressure-resistant and flame-proof manner.
  • a housing box 33 is fastened with the interposition of a seal 34, which has an inner housing 35 in which batteries 36 are accommodated, which are encapsulated in sand therein.
  • the inner housing 35 is attached to a side wall 38 of the housing box 33 and closed with a cover 39.
  • a switch 40 On a partial area of the wall 37 outside the inner housing 35 there is a switch 40, the plunger 41 of which is actuated when the housing box 33 is closed with a housing box cover 42 by means of a pin 43 formed thereon.
  • the arrangement is such that when the housing cover 42 is removed, the pin 43 releases the plunger 41, so that the switch 40 is opened, whereby the energy supply between the batteries 36 and the fluorescent lamp 30 is interrupted.
  • terminal strips 44 for clamping the supply lines between the battery 36 and the fluorescent lamp 30.
  • the intermediate plate 19 there is an eye (not shown in more detail) in the region of the edge 18, which has a type of blind hole 45 in which a piston 46 is guided with a piston rod 47, a compression spring 49 being provided between the piston rod 46 and a blind hole cover 48 , which continuously acts on the piston tappet or the piston 46 in the direction of the cover trough extension.
  • a screw 50 which interacts with the piston rod 47 and moves this or the piston 46 when screwing in in the direction which points away from the cover trough, i.e. the screw moves the piston or the piston rod 47 through the intermediate plate 19 into the room for increased safety.
  • There is a main switch 51 which also interrupts the connection between the batteries 36 and the fluorescent lamp 30.
  • the switch 51 When the screw 50 is completely screwed in, the switch 51 is switched on. If the cover trough is to be removed, the screw 50 must first be loosened, only then can the flange 13 be unscrewed from the intermediate plate 19; the piston 46 is pressed by the spring in the direction of releasing the switch 51 during the loosening of the screw 50, so that the switch 51 is switched off after the screw has been completely unscrewed.
  • the cover trough 10 can additionally be surrounded by an emergency light housing 52, so that the light according to the invention can also be used as an emergency light.
  • FIG. 3 corresponds essentially to that of FIGS. 1 and 2.
  • the cover trough 10 can be seen, which is connected to the intermediate plate 19 and the edge 18 via the flange 13.
  • the connection between the flange 13 and the edge 18 is drawn as in FIG. 5, although the ring 22 is not shown there.
  • On the outer surface of the intermediate plate 19 is a space 60 of increased security, which is adapted to the outer contour of the intermediate plate 19 and perpendicular to it diametrically opposite two outlet connections 61 and 62 for cables.
  • Terminal strips 63 are integrally formed on the end wall of the space 60 with increased security, which is opposite the intermediate plate 19.
  • a ballast 64 for a U-shaped compact fluorescent lamp 65 is fastened on the side of the intermediate plate 19, which is adjacent to the cover trough 20 or points towards it.
  • the pressure-resistant unit consisting of the cover trough 10 and the intermediate plate 19 is the same as that according to FIG. 2; the only difference is the design of room 60 with increased security and the lamp built into the lamp.
  • FIG. 4 A modification of the intermediate plate 19 is shown in FIG. 4.
  • This intermediate plate is designated by the same reference number 19 and a cylindrical edge 66 is formed on the intermediate plate 19, which is significantly longer than the edge 18 of the embodiment according to FIG. 1 or 2 and that of the length corresponds to a ballast 67, which is adapted for a compact fluorescent lamp 68 with an increased length compared to the fluorescent lamp 65 and thus also increased light energy.
  • the connection between the flange 13 and the edge 66 is as in FIG 5, which is why the reference number 66 is inserted with a slash behind the reference number 18 in FIG. 5.
  • the room 60 with increased security corresponds to the room 60 according to FIG. 3.
  • the cover cap 10 or cover trough 10 is made of a thermoplastic, preferably polycarbonate; the flange 13 is made of metal, as is the metal ring 22; the intermediate plate 19 with the edge 18 or the edge 66 is made of a thermosetting material in accordance with the regulations.
  • the intermediate plate 19 with the edge 18, 66 has the same coefficient of thermal expansion as the metal ring 22, so that both parts can also be produced economically with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP88117641A 1987-10-29 1988-10-22 Armature d'éclairage avec couvercle transparent et corps de lampe relié au couvercle Expired - Lifetime EP0314031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3736618 1987-10-29
DE19873736618 DE3736618A1 (de) 1987-10-29 1987-10-29 Leuchte mit einer transparenten abdeckwanne und einem damit verbundenen leuchtengrundkoerper

Publications (3)

Publication Number Publication Date
EP0314031A2 true EP0314031A2 (fr) 1989-05-03
EP0314031A3 EP0314031A3 (en) 1990-03-14
EP0314031B1 EP0314031B1 (fr) 1993-06-09

Family

ID=6339318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117641A Expired - Lifetime EP0314031B1 (fr) 1987-10-29 1988-10-22 Armature d'éclairage avec couvercle transparent et corps de lampe relié au couvercle

Country Status (3)

Country Link
EP (1) EP0314031B1 (fr)
DE (2) DE3736618A1 (fr)
NO (1) NO884819L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427042A2 (fr) * 1989-11-04 1991-05-15 Ruhrkohle Aktiengesellschaft Système pour commander une lampe portative
EP1253375A3 (fr) * 2001-04-26 2005-05-04 aqua signal Aktiengesellschaft Spezialleuchtenfabrik Lampe antidéflagrante
WO2009143792A1 (fr) * 2008-04-17 2009-12-03 Rag Aktiengesellschaft Appareil électrique encapsulé, résistant à la pression
CN111486347A (zh) * 2019-11-25 2020-08-04 深圳市海洋王照明工程有限公司 防爆行灯
CN111503532A (zh) * 2019-11-25 2020-08-07 深圳市海洋王照明工程有限公司 防爆行灯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047685A1 (de) * 2006-10-09 2008-04-10 Rzb Rudolf Zimmermann, Bamberg Gmbh Universell einsetz- und komplettierbarer Leuchtenkörper
DE102008053085A1 (de) * 2008-10-24 2010-05-12 Osram Gesellschaft mit beschränkter Haftung Mobile Leuchte mit Gasentladungslampe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB536345A (en) * 1939-02-06 1941-05-12 Friemann & Wolf Ges Mit Beschr Improvements in or relating to firedamp-proof lamps
DE741963C (de) * 1940-07-10 1943-11-19 Schneider Geb Explosionssichere Leuchte
CH345694A (fr) * 1958-04-03 1960-04-15 Transelectric Rubeli Lampe d'éclairage à tube à décharge dans un gaz
FR2266100A1 (en) * 1974-03-26 1975-10-24 Candela Electronic Safety light fitting housing - has lamp mounting bracket grooved to fit over base with cover support shoulders
GB2089489A (en) * 1980-12-15 1982-06-23 Keene Corp A lighting fitting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB536345A (en) * 1939-02-06 1941-05-12 Friemann & Wolf Ges Mit Beschr Improvements in or relating to firedamp-proof lamps
DE741963C (de) * 1940-07-10 1943-11-19 Schneider Geb Explosionssichere Leuchte
CH345694A (fr) * 1958-04-03 1960-04-15 Transelectric Rubeli Lampe d'éclairage à tube à décharge dans un gaz
FR2266100A1 (en) * 1974-03-26 1975-10-24 Candela Electronic Safety light fitting housing - has lamp mounting bracket grooved to fit over base with cover support shoulders
GB2089489A (en) * 1980-12-15 1982-06-23 Keene Corp A lighting fitting

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427042A2 (fr) * 1989-11-04 1991-05-15 Ruhrkohle Aktiengesellschaft Système pour commander une lampe portative
EP0427042A3 (en) * 1989-11-04 1992-05-27 Ruhrkohle Aktiengesellschaft System for operating a portable lamp
EP1253375A3 (fr) * 2001-04-26 2005-05-04 aqua signal Aktiengesellschaft Spezialleuchtenfabrik Lampe antidéflagrante
WO2009143792A1 (fr) * 2008-04-17 2009-12-03 Rag Aktiengesellschaft Appareil électrique encapsulé, résistant à la pression
CN111486347A (zh) * 2019-11-25 2020-08-04 深圳市海洋王照明工程有限公司 防爆行灯
CN111503532A (zh) * 2019-11-25 2020-08-07 深圳市海洋王照明工程有限公司 防爆行灯

Also Published As

Publication number Publication date
DE3881636D1 (de) 1993-07-15
EP0314031A3 (en) 1990-03-14
NO884819L (no) 1989-05-02
DE3736618A1 (de) 1989-05-11
EP0314031B1 (fr) 1993-06-09
NO884819D0 (no) 1988-10-28

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