EP0314031B1 - 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
EP0314031B1
EP0314031B1 EP88117641A EP88117641A EP0314031B1 EP 0314031 B1 EP0314031 B1 EP 0314031B1 EP 88117641 A EP88117641 A EP 88117641A EP 88117641 A EP88117641 A EP 88117641A EP 0314031 B1 EP0314031 B1 EP 0314031B1
Authority
EP
European Patent Office
Prior art keywords
intermediate plate
switch
luminaire according
bowl
enclosing
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
EP88117641A
Other languages
German (de)
English (en)
Other versions
EP0314031A3 (en
EP0314031A2 (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
Original Assignee
ABB 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 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 lamp, in particular an explosion-proof emergency lamp, according to the preamble of claim 1.
  • the invention relates to an explosion-protected emergency person who 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 with incandescent lamps, the emergency light being manufactured as a metal-glass light. Some of these metal and glass lights are still manufactured today.
  • the base of the luminaire consists of metal, in which the individual components required for the power supply of the incandescent lamps and possibly also batteries are accommodated; a cover trough made of glass is attached to this metal base body by suitable wire or metal grid arrangements is protected against breakage.
  • 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.
  • a lamp of the type mentioned has become known.
  • This has a transparent cover trough made of plastic, an intermediate plate and a luminaire base containing electrical components.
  • the cover trough carries an external thread that is screwed into an internal thread section on the intermediate plate.
  • the cover trough and the luminaire base are fastened to the intermediate plate on opposite sides thereof.
  • the external thread section is formed directly on the cover trough, so that when the external thread section is screwed into the internal thread section, stresses which can lead to stress corrosion cracking cannot be avoided.
  • the light source used in this lamp is obviously an incandescent lamp in which the luminous efficacy is relatively low.
  • 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 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 together with the cover trough forms a pressure-resistant housing, also made of a plastic, here made of thermoset. 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.
  • a lamp which comprises a cover trough, an intermediate plate and a lamp base made of plastic material.
  • the plastic material can be thermoplastic material, such as. B. be polycarbonate.
  • connection of the flange, on which the external thread is arranged or formed, with the cover trough takes place according to the solution 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 normal operating times and operating conditions.
  • a mechanical tension-free connection cover pan - flange is effected.
  • the intermediate plate which according to claim 3 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; an intermediate plate with a short edge can interact with all cover troughs, the length of the fluorescent lamp must be adapted to the length of the cover trough.
  • the intermediate plate with the higher edge can be used, this higher edge of the length of the ballast or the supply elements of the compact lamp being 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.
  • the intermediate plate and the cover trough are dimensioned according to claim 4 together with the thread so that they form a pressure-resistant unit and thereby meet the requirements for pressure-resistant encapsulation.
  • 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 breakdown is ensured, as a result of which the lamp as a whole is explosion-proof.
  • a further advantageous embodiment of the invention can be that a sand-encapsulated receiving space for batteries is 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 insert are used.
  • 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 go according to claim 7 that on the side facing the cover plate of the intermediate plate is fastened to the inside of the cover plate, the upper side of the fluorescent lamp and on the lower side a ballast is attached.
  • 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 cooperates with the actuating plunger of a switch attached to the support plate, which lies in the supply line from the mains to the fluorescent lamp, so that when the intermediate plate is unscrewed, the switch is opened.
  • a further embodiment of the invention can proceed according to claim 10 in 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 closing 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 according to claim 11 that in the intermediate plate a piston is provided with a compression spring, the piston rod cooperates with an electrical switch located in the housing box, that a screw is provided on the flange, which the piston together with the piston rod in Can be moved in the direction of switching on the switch, and that a spring cooperates with the piston, which presses the piston rod against the free end face of the screw, in such a way that when the screw is unscrewed, the spring pushes the piston with the piston rod away from the switch, which switches the switch 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 kind 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, when screwed in, moves it or the piston 46 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 security.
  • 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 fully screwed in, the switch 51 is turned 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)

Claims (11)

  1. Appareil d'éclairage, en particulier appareil d'éclairage de secours anti-déflagrant, comportant une verrine (10) transparente en forme de pot et, lié à celle-ci, un corps (33, 60) d'appareil, à l'intérieur duquel sont logés des éléments de connexion ainsi qu'une unité d'alimentation avec batteries (36), une plaque intermédiaire (19) avec une partie (17) filetée intérieurement qui est disposée d'un côté de la plaque intermédiaire (19) et dans laquelle se visse un filetage extérieur (16) prévu sur la verrine (10), le corps (33, 60) de l'appareil d'éclairage étant fixé de l'autre côté de la plaque intermédiaire (19), caractérisé par le fait que la verrine (10) en matériau thermoplastique, à son extrémité libre, est solidaire d'une bride (13) en métal qui porte le filetage extérieur (16), un rebord (11) circulaire formant saillie radialement vers l'extérieur étant aménagé à l'extrémité libre de la verrine (10) et étant pris entre une contre-dépouille (12) de la bride et une bague de blocage (15) avec interposition d'un joint (14) et par le fait que la partie (17) filetée intérieurement est aménagée dans une bague (22) métallique qui est insérée dans la plaque intermédiaire (19) en duroplaste et est solidaire de celle-ci.
  2. Appareil d'éclairage selon la revendication 1, caractérisé par le fait que le joint (14) est moulé et élimine les contraintes mécaniques dans la liaison verrine (10) - bride (13).
  3. Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait que la plaque intermédiaire comporte une partie (19) en forme de disque et un bord (18, 66) cylindrique attenant dans la paroi intérieure duquel est insérée la bague (22) métallique.
  4. Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait que la verrine (10), la plaque intermédiaire (19) et le filetage (16, 17) sont dimensionnés de manière à former un ensemble étanche à la pression.
  5. Appareil d'éclairage selon la revendication 4, caractérisé par le fait que les filetages intérieur et extérieur sont mutuellement adaptés de telle sorte que, en position complètement vissés, il existe entre eux un espace de largeur et de longueur suffisantes assurant une protection contre le claquage.
  6. Appareil d'éclairage selon l'une des revendications 1 à 7, caractérisé par le fait qu'il est prévu à l'intérieur du corps (33) une chambre à remplissage pulvérulent pour des batteries (36).
  7. Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait qu'une plaque support qui pénètre à l'intérieur de la verrine (10) est fixée sur la face la plaque intermédiaire tournée vers ladite verrine, plaque sur la face supérieure de laquelle est fixée la lampe fluorescente (30) et sur la face inférieure de laquelle est fixé un ballast (31).
  8. Appareil d'éclairage selon la revendication 7, caractérisé par le fait que la plaque-support (24) est montée sur un têton dans la région du fond de la verrine (10), de manière telle que la plaque-support (24) et la plaque intermédiaire (19) puissent tourner par rapport à la verrine (10).
  9. Appareil d'éclairage selon la revendication 7, caractérisé par le fait qu'il est prévu au fond (29) de la verrine (10) un renflement (27) cylindrique de commande qui fait saillie à partir du fond en direction du bord de la verrine (10), par le fait qu'un commutateur (28) intercalé dans la ligne menant à la lampe à fluorescence (30) est fixé sur la plaque-support (24), commutateur dont la manette de commande glisse sur le bord du renflement de commande (27) et par le fait que la plaque-support (24) pénètre par un prolongement à l'intérieur du renflement de commande (27).
  10. Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu, dans la région de la chambre recevant les batteries (35, 36), un commutateur (40) qui est actionné par un couvercle (42) qui ferme le boîtier (33) de manière telle que le commutateur (40) soit ouvert lorsqu'on retire le couvercle (42).
  11. Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu dans la plaque intermédiaire (19) un piston (46) avec un ressort de compression (49), dont la tige (47) coopère avec un commutateur (51) électrique monté dans le boîtier (33), par le fait qu'il est prévu sur la bride (13) une vis qui repousse le piston (46) et la tige de piston (47) dans la direction de la fermeture du commutateur (51) et par le fait qu'un ressort (49) coopère avec le piston (46) et applique la tige de piston (47) contre la face frontale libre de la vis (50) de manière telle que, lorsqu'on dévisse la vis (50) le ressort (49) éloigne le piston et la tige de piston (46, 47) du commutateur (51) entraînant ainsi l'ouverture dudit commutateur (51).
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
DE19873736618 DE3736618A1 (de) 1987-10-29 1987-10-29 Leuchte mit einer transparenten abdeckwanne und einem damit verbundenen leuchtengrundkoerper
DE3736618 1987-10-29

Publications (3)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936809C1 (fr) * 1989-11-04 1991-02-21 Ruhrkohle Ag, 4300 Essen, De
DE20107247U1 (de) * 2001-04-26 2001-08-16 Aqua Signal Ag Leuchte mit Explosions-Schutz
DE102006047685A1 (de) * 2006-10-09 2008-04-10 Rzb Rudolf Zimmermann, Bamberg Gmbh Universell einsetz- und komplettierbarer Leuchtenkörper
DE102008019215A1 (de) * 2008-04-17 2009-10-22 Rag Aktiengesellschaft Druckfest gekapseltes elektrisches Gerät
DE102008053085A1 (de) * 2008-10-24 2010-05-12 Osram Gesellschaft mit beschränkter Haftung Mobile Leuchte mit Gasentladungslampe
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
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

Family Cites Families (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
CH587440A5 (fr) * 1974-03-26 1977-04-29 Candela Electronic
US4388681A (en) * 1980-12-15 1983-06-14 Keene Corporation Hazardous location light fixture

Also Published As

Publication number Publication date
NO884819D0 (no) 1988-10-28
EP0314031A3 (en) 1990-03-14
DE3881636D1 (de) 1993-07-15
EP0314031A2 (fr) 1989-05-03
NO884819L (no) 1989-05-02
DE3736618A1 (de) 1989-05-11

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